CN205122079U - Machinery horse presentation device - Google Patents

Abstract

The utility model provides a mechanical horse demonstration device, which comprises a gear transmission mechanism, a sprocket transmission mechanism, an eccentric wheel transmission mechanism, an intermittent motion mechanism, a connecting rod transmission mechanism, a support frame, a horse body, a horse head, a horse foot, a horse tail, a gear The transmission mechanism is connected with the sprocket transmission mechanism, the sprocket transmission mechanism is respectively connected with the connecting rod transmission mechanism, the eccentric wheel transmission mechanism and the intermittent movement mechanism, the eccentric wheel transmission mechanism is connected with the horse head, the intermittent movement mechanism is connected with the horsetail, and the link transmission mechanism Connected with the horse's feet, the horse's tail and horse's head are located at both ends of the horse's body, and the horse's feet are located at the lower part of the horse's body. The utility model provides a mechanical horse demonstration device which integrates various common mechanical transmissions such as gear transmission, sprocket transmission, eccentric wheel transmission, cam transmission, and connecting rod transmission. The mechanical horse demonstration device can realize the bionic movement process of the horse, It is suitable for the teaching of mechanical design and other related courses.

Description

A mechanical horse demonstration device

technical field

The utility model relates to the field of teaching tools, in particular to a mechanical horse demonstration device.

Background technique

The role of the transmission system in machinery is to transmit the movement and power of the prime mover to the actuator. Common mechanical transmissions include sprocket transmission, gear transmission, cam transmission and connecting rod transmission. In the teaching course of mechanical design, in order to explain more clearly the working principle, basic structure, basic function and basic characteristics of these four transmissions, teachers will use PPT or video playback in their own classrooms to let students understand some transmission methods, There are also teachers who use the more intuitive means of demonstration teaching aids. However, according to our understanding, there are two main types of common mechanical transmission demonstration teaching aids in major colleges and universities: 1) separate demonstration teaching aids about common transmission methods. Such teaching aids are easy to make and easy to demonstrate. To a certain extent, it can give students an intuitive demonstration, so that students can understand the working principle, basic mechanism and basic functions of the four transmissions respectively. However, because it is a separate demonstration, it is not convenient for students to watch and compare various mechanical transmissions at the same time, and schools must purchase multiple teaching aids when purchasing teaching aids, which increases teaching costs. 2) Common mechanical transmission comprehensive demonstration teaching aids. This type of teaching aid is designed and manufactured on the basis of the first type of teaching aid. It not only inherits the advantages of the first type of teaching aid, but also avoids its disadvantages to a certain extent. Its design not only reduces the cost of school teaching, but also enables students to watch and understand the working principle, basic structure, and basic functions of various common transmissions at the same time, and it is more convenient for teachers to explain. Inquiring about the patents of existing mechanical bionic horses at present, for example, a kind of wheel-leg hybrid mechanical horse whose patent number is CN102895783B and a kind of fitness bionic mechanical horse of CN203227280U are used for people to ride and simply imitate walking movements, and are useful for demonstrating mechanical transmission Insufficient and not suitable for teaching demonstrations.

In order to solve the above problems, this case was born.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and provide a mechanical horse demonstration device integrating various common mechanical transmissions such as gear transmission, sprocket transmission, eccentric transmission, cam transmission, and connecting rod transmission. The mechanical horse demonstration device can realize the bionic movement process of the horse, and is suitable for the teaching of mechanical design and other related courses.

In order to achieve the above object, the technical solution of the utility model is as follows: a mechanical horse demonstration device, including a gear transmission mechanism, a sprocket transmission mechanism, an eccentric wheel transmission mechanism, an intermittent motion mechanism, a connecting rod transmission mechanism, a support frame, a horse body, Horse head, horse foot and horse tail, the gear transmission mechanism is connected with the sprocket transmission mechanism, the sprocket transmission mechanism is respectively connected with the connecting rod transmission mechanism, the eccentric wheel transmission mechanism and the intermittent movement mechanism, the eccentric wheel transmission mechanism is connected with the horse head, and the intermittent movement mechanism It is connected with the horse's tail, the connecting rod transmission mechanism is connected with the horse's foot, the horse's tail and the horse's head are respectively located at the two ends of the horse's body, and the horse's foot is located at the lower part of the horse's body.

Further, there are two sets of connecting rod transmission mechanisms, which are respectively located on both sides of the horse body, and each set of connecting rod transmission mechanisms is connected to two horse feet, one in front and one behind.

Further, the gear transmission mechanism includes a frame, a first transmission shaft, a first-stage pinion, a first-stage bull gear, a second-stage bull gear, a second-stage pinion and a second transmission shaft, the first transmission shaft and The second transmission shaft is supported in the frame in parallel, one end of the first transmission shaft extends out of the frame and a hand wheel is installed, the first stage small gear and the second stage large gear are fixed on the first transmission shaft, the first stage large gear and the second stage large gear The secondary pinion gear is installed on the second transmission shaft, and a long key is installed on the second transmission shaft. The first-stage large gear and the second-stage pinion can move axially along the second transmission shaft and the key. The stage pinion and the first stage bull gear can cooperate to drive, and the second stage bull gear can cooperate with the second stage pinion to transmit.

Further, the sprocket transmission mechanism includes a sprocket drive shaft, a first-stage large sprocket, a first-stage small sprocket, a first-stage chain, a second-stage head sprocket, a second-stage chain, and a third-stage The tail sprocket, the third-stage chain and the double-row synchronous sprocket, the sprocket drive shaft is supported on the horse, the first-stage large sprocket and the double-row synchronous sprocket are fixed on the sprocket drive shaft, the first-stage small sprocket It is fixed on the second transmission shaft in the gear transmission mechanism, the first stage large sprocket and the first stage small sprocket are connected by the first stage chain, the second stage head sprocket and one chain in the double row synchronous sprocket The wheels are connected by a second-stage chain, and the third-stage tail sprocket and the other sprocket in the double-row synchronous sprockets are connected by a third-stage chain.

Further, the linkage transmission mechanism includes a rotating disk and two linkage mechanisms respectively used to drive two horses one after the other, the rotating disk is installed at the end of the sprocket drive shaft in the sprocket transmission mechanism, and the two The connecting rod mechanism can rotate around a certain point at the non-center of the rotating disk, and the connecting rod mechanism includes a force transmission connecting rod one, a force transmission connecting rod two, a thigh connecting rod one, a thigh connecting rod two and a triangular plate, a power transmission connecting rod one and One end of the force transmission link 2 is connected to a certain same position on the non-circle center of the rotating disk, and the other end of the force transmission link 1 and one end of the thigh link 1 are connected to a certain same position on the corresponding horse foot. The other end of the rod two is connected to a certain position of the triangle plate, the other end of the thigh connecting rod one is connected to a certain position of the triangle plate and this position is connected to the horse together, the force transmission link one, the force transmission link two, the thigh Connecting rod 1 and triangle plate constitute a four-bar linkage mechanism. The two ends of thigh connecting rod 2 are respectively connected to a certain position of the triangle plate and a certain position of the corresponding horse foot. The thigh connecting rod 1 is parallel to thigh connecting rod 2, and the thigh connecting rod One, thigh connecting rod two, force transmission connecting rod two and the connecting points of the triangular plate are respectively located on three angles of the triangular plate.

Further, the eccentric wheel transmission mechanism includes a bearing seat, a head transmission shaft, a connection box, a disc and an adjustment lock, the bearing seat is fixed on the horse, one end of the head transmission shaft is installed on the bearing seat, and the second stage head The upper sprocket is fixed on the head transmission shaft, and the connection box is fixed on the other end of the head transmission shaft. A screw rod is installed in the connection box, and a moving block is installed on the screw rod. One end of the screw rod extends out of the connection box and is installed with a Adjust the lock, the disc is fixed on the moving block, the horse head includes a guide rod, a pin shaft, a guide seat and a horse head plate, the horse head plate and the horse body are connected by a pin shaft, the horse head plate is installed on the guide seat, and the guide The rod passes through the guide seat and can move axially along the guide seat, and the guide rod is tangent to the disk and can move relatively.

Further, the intermittent motion mechanism includes a fixed plate, a force rod, a lifting rod, a mounting seat, a locking plate, a locking plate, a compression spring, a bearing mounting frame, a bearing set, a bearing mounting shaft, a torsion spring, and a torsion spring limiter. One side of the fixed plate is fixed on the horse, and the other side is fixed on the mounting seat. A hole is arranged in the mounting seat and passes through the lifting rod. One end of the lifting rod is fixed on the force rod, and the The other end fixes the bearing mounting frame, and the lifting rod is located between the bearing mounting frame and the mounting seat to install a compression spring. The side of the mounting seat is fixed with a lock plate. One end of the pinch plate is connected to the bearing installation shaft, and the other end can be in contact with the locking plate. One end of the bearing installation shaft is fixed to the torsion spring limit plate. The torsion spring passes through the bearing installation shaft and is located between the pinch plate and the torsion spring limit plate. And respectively connected with the pinch plate and the torsion spring limit plate, the tail transmission shaft is installed between the horse body, the cam is installed and fixed on the tail transmission shaft, the cam is in contact with the surface of the bearing group, the tripping shaft is fixed on the cam and moves with the Its rotation can reach the tail of the buckle plate, and the third-stage tail sprocket is fixed on the tail transmission shaft. The horsetail includes a horsetail plate, a horsetail rotating shaft and a horsetail connecting rod. One end of the horsetail connecting rod is fixed to the horsetail plate, and the middle part is fixed to the horsetail rotating shaft. , the other end is in contact with the force applying rod, and the horsetail rotating shaft is connected between the horse body and can rotate.

After adopting the above-mentioned technical scheme, the utility model has the following advantages compared with the prior art: the utility model mechanical horse demonstration device integrates various common The mechanical transmission of the horse can realize the bionic movement process of the horse, and is suitable for the teaching of mechanical design and other related courses.

Description of drawings

Fig. 1 is the front view of the utility model mechanical horse demonstration device.

Fig. 2 is a top view of the gear transmission mechanism in the mechanical horse demonstration device of the present invention.

Fig. 3 is a front view of the sprocket transmission mechanism in the mechanical horse demonstration device of the present invention.

Fig. 4 is a top view of the sprocket drive mechanism in the mechanical horse demonstration device of the present invention.

Fig. 5 is a front view of the connecting rod transmission mechanism in the mechanical horse demonstration device of the present invention.

Fig. 6 is a left view of the eccentric wheel transmission mechanism in the mechanical horse demonstration device of the present invention.

Fig. 7 is a front view of a horse head in the mechanical horse demonstration device of the present invention.

Fig. 8 is a left view of the intermittent motion mechanism in the mechanical horse demonstration device of the present invention.

Fig. 9 is a front view of the intermittent motion mechanism in the mechanical horse demonstration device of the present invention.

Shown in the figure: 1, gear transmission mechanism 11, frame 12, first transmission shaft 13, first stage pinion gear 14, first stage bull gear 15, second stage bull gear 16, second stage pinion 17, the first stage Second transmission shaft 18, hand wheel 19, key 2, sprocket drive mechanism 21, sprocket drive shaft 22, first stage large sprocket wheel 23, first stage small sprocket wheel 24, first stage chain 25, second stage head Head sprocket 26, second-stage chain 27, third-stage tail sprocket 28, third-stage chain 29, double-row synchronous sprocket 3, eccentric wheel transmission mechanism 31, bearing housing 32, head transmission shaft 33, connection box 34. Disc 35, adjustment lock 36, screw rod 37, moving block 4, intermittent motion mechanism 41, fixed plate 42, force rod 43, lifting rod 44, mounting seat 45, lock plate 46, plate 47, compression Spring 48, bearing mounting frame 49, bearing group 410, bearing mounting shaft 411, torsion spring 412, torsion spring limit plate 413, tail drive shaft 414, cam 415, tripping shaft 5, connecting rod transmission mechanism 51, rotating disc 52 , connecting rod mechanism 521, power transmission connecting rod one 522, power transmission connecting rod two 523, thigh connecting rod one 524, thigh connecting rod two 525, triangular plate 6, support frame 7, horse body 8, horse head 81, guide rod 82 , Bearing pin 83, guide seat 84, horse head plate 9, horse foot 10, horsetail 101, horsetail plate 102, horsetail rotating shaft 103, horsetail connecting rod.

detailed description

Below by accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1: a mechanical horse demonstration device, including a gear transmission mechanism 1, a sprocket transmission mechanism 2, an eccentric wheel transmission mechanism 3, an intermittent motion mechanism 4, a connecting rod transmission mechanism 5, a support frame 6, a horse body 7, Horse head 8, horse foot 9 and horsetail 10, gear transmission mechanism 1 is connected with sprocket transmission mechanism 2, sprocket transmission mechanism 2 is respectively connected with connecting rod transmission mechanism 5, eccentric wheel transmission mechanism 3 and intermittent motion mechanism 4, eccentric wheel transmission mechanism Mechanism 3 is connected with horse head 8, intermittent motion mechanism 4 is connected with horse tail 10, and connecting rod transmission mechanism 5 is connected with horse foot 9, and horse tail 10 and horse head 8 are respectively positioned at two ends of horse body 7, and horse foot 9 is positioned at horse body 7 bottoms. Among them, there are two groups of connecting rod transmission mechanisms 5, which are respectively located on both sides of the horse body 7. Each group of connecting rod transmission mechanisms 5 is connected with two horse feet 9, one in front and one behind, respectively, so as to drive one side and two horse feet in front and one behind. Tells 9 movements.

As shown in Figure 2: the gear transmission mechanism 1 includes a frame 11, a first transmission shaft 12, a first stage pinion 13, a first stage bull gear 14, a second stage bull gear 15, a second stage pinion 16 and a second stage The transmission shaft 17, the first transmission shaft 12 and the second transmission shaft 17 are supported in the frame 11 in parallel, one end of the first transmission shaft 12 stretches out from the frame 11 and a hand wheel 18 is installed, the first stage pinion 13 and the second stage large The gear 15 is fixed on the first transmission shaft 12, the first stage large gear 14 and the second stage pinion 16 are installed on the second transmission shaft 17, and the second transmission shaft 17 is equipped with a strip key 19, the first stage The bull gear 14 and the second stage pinion 16 can move axially along the second transmission shaft 17 and the key 19, the first stage pinion 13 can cooperate with the first stage bull gear 14 for transmission, and the second stage bull gear 15 and the first stage Secondary pinion 16 can cooperate transmission. Shaking the handwheel 18 can drive the first transmission shaft 12 to rotate, and the gear on the first transmission shaft 12 and the gear on the second transmission shaft 17 are meshed to transmit power to the second transmission shaft 17, finally driving the sprocket The first stage small sprocket 23 in the rotating mechanism rotates. The gear transmission mechanism 1 designed with this structure can adjust the speed ratio of the internal gears of the frame 11, and the speed of the horse's movement speed can be adjusted by adjusting the speed ratio. When the speed of the horse needs to be fast, the speed ratio of the gear is increased, that is, the second-stage pinion 16 is moved, so that the second-stage pinion 16 is separated from the second-stage bull gear 15, while the first-stage pinion 13 is kept Mesh with the first-stage large gear 14, so that when the handwheel 18 is shaken at a certain speed, the horse's movement speed is faster; The bull gear 14 makes the first-stage bull gear 14 disengage from the first-stage pinion 13, while keeping the second-stage pinion 16 meshed with the second-stage bull gear 15, so that when shaking the handwheel 18 at a certain speed, the The movement speed is slower.

As shown in Figure 2 and Figure 4: the sprocket drive mechanism includes a sprocket drive shaft 21, a first-stage large sprocket 22, a first-stage small sprocket 23, a first-stage chain 24, and a second-stage head sprocket 25 , the second stage chain 26, the third stage tail sprocket wheel 27, the third stage chain 28 and the double row synchronous sprocket wheel 29, the sprocket drive shaft 21 is supported on the horse body 7, the first stage large sprocket wheel 22 and the double row The synchronous sprocket 29 is fixed on the sprocket transmission shaft 21, the first stage small sprocket 23 is fixed on the second transmission shaft 17 in the gear transmission mechanism 1, the first stage large sprocket 22 and the first stage small sprocket 23 Connected by the first stage chain 24, a sprocket wheel in the second stage head sprocket 25 and the double row synchronous sprocket 29 is connected by the second stage chain 26, the third stage tail sprocket 27 and the double row synchronous sprocket 29 The other sprocket in is connected by a tertiary chain 28. When the first-stage small sprocket 23 rotates, the first-stage large sprocket 22 can be driven to rotate by the first-stage chain 24, and the first-stage large gear 14 can drive the sprocket drive shaft 21 to rotate, and the sprocket drive shaft 21 rotates Can drive double row synchronous sprocket 29 to rotate.

As shown in Figure 5: the connecting rod transmission mechanism 5 comprises a rotating disk 51 and two connecting rod mechanisms 52 which are respectively used to drive two horses 9 one after the other, and the rotating disk 51 is installed on the sprocket wheel in the sprocket driving mechanism 2 Drive shaft 21 ends, two link mechanisms 52 can rotate around a certain point at the non-center of the rotating disc 51, and the link mechanisms 52 include a force transmission link one 521, a force transmission link two 522, a thigh link one 523 , thigh connecting rod two 524 and triangular plate 525, one end of power transmission connecting rod one 521 and power transmission connecting rod two 522 are connected to a certain same position at the non-circle center on the rotating disk 51, the other end of power transmission connecting rod one 521 and One end of the thigh connecting rod one 523 is connected to a certain same position on the corresponding horse foot 9, the other end of the force transmission connecting rod two 522 is connected to a certain position of the triangular plate 525, and the other end of the thigh connecting rod one 523 is connected to the side of the triangular plate 525. A certain position and this position is connected on the horse body 7 together, power transmission connecting rod one 521, power transmission connecting rod two 522, thigh connecting rod one 523 and triangular plate 525 constitute four-bar linkage mechanism, thigh connecting rod two 524 The two ends are respectively connected to a certain position of the triangular plate 525 and a certain position of the corresponding horse foot 9, the thigh connecting rod one 523 is parallel to the thigh connecting rod two 524, the thigh connecting rod one 523, the thigh connecting rod two 524, the power transmission connecting rod The connection points between the second 522 and the triangular plate 525 are respectively located on the three corners of the triangular plate 525 . When the sprocket drive shaft 21 rotates, it can drive the rotating disc 51 to rotate, and the rotating disc 51 can drive two link mechanisms 52 to rotate around a certain point at the non-center of the rotating disc 51, and the link mechanism 52 drives the horse foot 9 to move . Can realize the extremity motion of horse by above link transmission mechanism 5.

As shown in Fig. 6 and Fig. 7: the eccentric wheel transmission mechanism 3 comprises a bearing seat 31, a head drive shaft 32, a connection box 33, a disk 34 and an adjustment lock 35, the bearing seat 31 is fixed on the horse body 7, and the head transmission One end of the shaft 32 is installed on the bearing seat 31, the second-stage head sprocket 25 is fixed on the head transmission shaft 32, the connection box 33 is fixed on the other end of the head transmission shaft 32, and a screw rod is installed in the connection box 33 36, a moving block 37 is installed on the screw mandrel 36, and one end of the screw mandrel 36 extends out of the connection box 33 and an adjustment lock 35 is installed, the disc 34 is fixed on the moving block 37, and the horse head 8 includes a guide rod 81 and a pin shaft 82 , guide seat 83 and horse head plate 84, horse head plate 84 and horse body 7 are connected by bearing pin 82, horse head plate 84 is installed on the guide seat 83, and guide rod 81 passes guide seat 83 and can follow guide seat 83 Axially movable, the guide rod 81 is tangent to the disk 34 and relatively movable. When the double-row synchronous sprocket 29 rotates, it can drive the second-stage head sprocket 25 to rotate, and the second-stage head sprocket 25 can drive the head drive shaft 32 to rotate, and the head drive shaft 32 can drive the disc 34. Rotate, the rotation of the disc 34 can drive the guide rod 81 to move axially, and then drive the horse head 8 to shake back and forth through the guide rod 81 . The eccentric wheel transmission mechanism 3 designed with this structure can also adjust the shaking amplitude of the horse head 8 . By adjusting the lock 35, the moving block 37 can be driven to move along the screw mandrel 36, and then the moving block 37 drives the disc 34 to move radially. The bigger it is, the bigger the radius of rotation of the disk 34 is, the larger the range of motion of the horse head 8 is, and vice versa.

As shown in Figure 8 and Figure 9: the intermittent motion mechanism 4 includes a fixed plate 41, a force rod 42, a lifting rod 43, a mounting seat 44, a lock plate 45, a pin plate 46, a compression spring 47, a bearing mounting frame 48, a bearing Group 49, bearing mounting shaft 410, torsion spring 411, torsion spring limit plate 412, tail drive shaft 413, cam 414 and tripping shaft 415, one side of fixed plate 41 is fixed on the horse body 7, and the other side is fixed on the mounting seat 44, A hole is set in the mounting seat 44 and passes through the lifting rod 43. One end of the lifting rod 43 fixes the force applying rod 42, and the other end of the lifting rod 43 fixes the bearing mounting frame 48. The lifting rod 43 is located on the bearing mounting frame 48 and the mounting seat 44. Compression spring 47 is installed between, mounting seat 44 sides fix locking plate 45, bearing mounting shaft 410 is installed on bearing mounting frame 48, bearing group 49 is installed on bearing mounting shaft 410, one end of buckle plate 46 and bearing mounting shaft 410 Connect, the other end can be in contact with the locking plate 45, one end of the bearing installation shaft 410 fixes the torsion spring limiting plate 412, the torsion spring 411 passes through the bearing mounting shaft 410 and is located between the buckling plate 46 and the torsion spring limiting plate 412 and Connect with buckle plate 46 and torsion spring limiting plate 412 respectively, tail transmission shaft 413 is installed between the horse body 7, cam 414 is installed on the tail transmission shaft 413 and fixed, cam 414 contacts with bearing group 49 surfaces, and the tripping shaft 415 is fixed on the cam 414 and can reach pinch plate 46 afterbody along with its rotation, and the third stage tail sprocket wheel 27 is fixed on the tail transmission shaft 413, and horsetail 10 comprises horsetail plate 101, horsetail rotating shaft 102 and horsetail connecting rod 103, and horsetail One end of the connecting rod 103 is fixed with the horsetail plate 101, the middle part is fixed with the horsetail rotating shaft 102, and the other end is in contact with the force applying rod 42, and the horsetail rotating shaft 102 is connected between the horse body 7 and can rotate. When the double-row synchronous sprocket 29 rotates, it can drive the third stage tail sprocket 27 to rotate, and the third stage tail sprocket 27 rotates to drive the cam 414 to rotate. Force bar 42 reaches highest position, and cam 414 rotates further subsequently, and force applying bar 42 is bounced back to the lowest position by compression spring 47, and force applying bar 42 knocks tail connecting rod 103 to realize the intermittent motion of horsetail 10 in the meantime.

The mechanical horse demonstration device of the utility model integrates a variety of common mechanical transmissions such as gear transmission, sprocket transmission, eccentric wheel transmission, cam 414 transmission, and connecting rod transmission, and realizes the coordinated actions of various parts of the mechanism through the sprocket transmission mechanism 2 , can realize the bionic movement process of the horse, and is suitable for the teaching of mechanical design and other related courses.

The above-mentioned embodiment is an inspiration, and through the above-mentioned description content, relevant staff can make various changes and modifications within the scope of not departing from the idea of this utility model. The technical scope of this utility model is not limited to the content in the description, and the scope of protection must be determined according to the scope of the claims.

Claims (7)

1. a mechanical horse apparatus for demonstrating, it is characterized in that: comprise gear drive, chain wheel driving mechanism, eccentric wheel drive mechanism, intermittent motion mechanism, jointed gear unit, bracing frame, length, head of the horse, something that gives the game away and horse hair, gear drive is connected with chain wheel driving mechanism, chain wheel driving mechanism respectively with jointed gear unit, eccentric wheel drive mechanism is connected with intermittent motion mechanism, eccentric wheel drive mechanism is connected with head of the horse, intermittent motion mechanism is connected with horse hair, jointed gear unit is connected with something that gives the game away, horse hair and head of the horse lay respectively at length two ends, something that gives the game away is positioned at length bottom.

2. a kind of mechanical horse apparatus for demonstrating according to claim 1, is characterized in that: described jointed gear unit has two groups, lays respectively at length both sides, often organizes jointed gear unit and is connected with one in front and one in back two something that gives the game aways respectively.

3. a kind of mechanical horse apparatus for demonstrating according to claim 1, it is characterized in that: described gear drive comprises framework, first transmission shaft, first order pinion wheel, first order gear wheel, second level gear wheel, second level pinion wheel and second driving shaft, first transmission shaft and second driving shaft parallel support are in framework, one end of first transmission shaft is stretched out framework and is installed handwheel, first order pinion wheel and second level gear wheel are fixed on the first transmission shaft, first order gear wheel and second level pinion wheel are arranged on second driving shaft, second driving shaft is provided with rectangular key, first order gear wheel and second level pinion wheel can move axially along second driving shaft and key, first order pinion wheel can coordinate transmission with first order gear wheel, second level gear wheel can coordinate transmission with second level pinion wheel.

4. a kind of mechanical horse apparatus for demonstrating according to claim 3, it is characterized in that: described chain wheel driving mechanism comprises chain wheel transmission shaft, first order hinge wheel, first order minor sprocket, first order chain, second level head sprocket wheel, second level chain, third level tail sprocket, third level chain and double synchronous sprocket wheel, chain wheel transmission shaft is supported on length, first order hinge wheel and double synchronous sprocket wheel are fixed on chain wheel transmission shaft, first order minor sprocket is fixed on the second driving shaft in gear drive, first order hinge wheel is connected by first order chain with first order minor sprocket, second level head sprocket wheel is connected by second level chain with the sprocket wheel of in double synchronous sprocket wheel, third level tail sprocket is connected by third level chain with another sprocket wheel in double synchronous sprocket wheel.

5. a kind of mechanical horse apparatus for demonstrating according to claim 2, it is characterized in that: described jointed gear unit comprises rolling disc and is respectively used to drive two linkage assemblys of one in front and one in back two something that gives the game aways, rolling disc is arranged on the chain sprocket drive shaft end in chain wheel driving mechanism, two linkage assemblys a bit can rotate around certain of the non-circle centre position of rolling disc, linkage assembly comprises force transmitting link one, force transmitting link two, thick link one, thick link two and set square, one end of force transmitting link one and force transmitting link two is connected to a certain same position of non-circle centre position on rolling disc, the other end of force transmitting link one and one end of thick link one are connected to a certain same position in corresponding something that gives the game away, the other end of force transmitting link two is connected to a certain position of set square, the other end of thick link one is connected to a certain position of set square and this position is connected on length in the lump, force transmitting link one, force transmitting link two, thick link one and set square form four lever linkage mechanisms, the two ends of thick link two are connected to a certain position of set square and a certain position of corresponding something that gives the game away, thick link one is parallel with thick link two, thick link one, thick link two, force transmitting link two lays respectively on three angles of set square with the tie point of set square.

6. a kind of mechanical horse apparatus for demonstrating according to claim 4, it is characterized in that: described eccentric wheel drive mechanism comprises bearing seat, head drive shaft, connecting box, disk and adjustment lock, bearing seat is fixed on length, one end of head drive shaft is arranged on bearing seat, second level head sprocket wheel is fixed in head drive shaft, connecting box is fixed on the other end of head drive shaft, in connecting box, screw mandrel is installed, screw mandrel is provided with movable block, one end of screw mandrel is stretched out connecting box and is provided with and regulates lock, disk is fixed on movable block, described head of the horse comprises guide pole, bearing pin, guide holder and head of the horse plate, head of the horse plate and length pass through pinned connection, head of the horse plate is arranged on guide holder, guide pole also can be axially movable along guide holder through guide holder, guide pole and disk tangent and can relative motion.

7. a kind of mechanical horse apparatus for demonstrating according to claim 4, it is characterized in that: described intermittent motion mechanism comprises fixed head, force application rod, elevating lever, mount pad, locking board, buckle, Compress Spring, bearing mount, bearing pack, bearing installation shaft, torsion spring, torsion spring limiting plate, afterbody transmission shaft, cam and trip spindle, the one side of fixed head is fixed on length, another side fixed mounting, one hole is set in mount pad and passes elevating lever, force application rod is fixed in one end of elevating lever, the other end solid bearing erecting frame of elevating lever, elevating lever installs Compress Spring between bearing mount and mount pad, mount pad side fixes locking board, bearing mount is provided with bearing installation shaft, bearing installation shaft installs bearing pack, one end of buckle is connected with bearing installation shaft, the other end can contact with locking board, torsion spring limiting plate is fixed in one end of bearing installation shaft, torsion spring is through bearing installation shaft and buckle and torsion spring limiting plate and be connected with buckle and torsion spring limiting plate respectively, afterbody transmission shaft is arranged between length, cam is arranged on afterbody transmission shaft also fixing, cam and bearing pack surface contact, trip spindle to be fixed on cam and can to reach buckle afterbody along with its rotation, third level tail sprocket is fixed on afterbody transmission shaft, described horse hair comprises horse hair plate, horse hair rotating shaft and manyleaf meadowure rhizome and root extension bar, one end and the horse hair plate of manyleaf meadowure rhizome and root extension bar are fixed, middle part and horse hair rotating shaft are fixed, the other end contacts with force application rod, horse hair rotating shaft is connected between length also rotatable.