CN110254220A - A kind of pulley lever power car - Google Patents

Abstract

The invention discloses a pulley lever power vehicle, which comprises a chassis, a front wheel is installed on the lower side of the front end of the chassis, a bracket is welded on the upper side, the bracket is rotationally connected with a steering mechanism, and the steering mechanism is connected with the front wheel; the rear end of the chassis is welded with a vehicle frame , the driving motor is fixedly installed in the middle of the frame, and the motor pulley is fixedly installed at the outer end of the rotating shaft of the driving motor. The motor pulley is connected to the driven wheel through a belt. One end of the arm is fixedly connected, the other end of the starting arm is rotatably connected with the first link mechanism, the first link mechanism is rotatably connected with the power arm of the booster lever, and the booster lever is rotatably installed on the chassis. The advantages of the present invention are: the device is equipped with a booster lever, so that the overall power of the power car is sufficient and the load-bearing capacity is strong, and a motor with a smaller power can be used to drive the power car to work, thereby reducing the number of batteries and saving electric energy.

Description

A kind of pulley lever power car

technical field

The invention relates to the technical field of electric vehicles, in particular to a pulley lever powered vehicle.

Background technique

Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, electric vehicles use batteries as the energy source, and convert electrical energy into mechanical energy through controllers, motors and other components to control the current and change the speed of the vehicle. Today, electric vehicles have undergone continuous upgrading, and great changes have taken place, and the types are also diverse. Electric vehicles generally use lead-acid batteries or lithium-ion batteries for power supply. Common electric vehicles used for small cargo are generally electric tricycles.

Traditional electric tricycles have the following defects: 1. The battery life is short, the cost of use is high, and the mileage after one charge is not ideal; 2. The load-bearing capacity of electric tricycles is poor, and the driving speed is usually slow; Slow operation, high heat generation, easy to burn the motor, and at the same time, huge energy loss, insufficient starting power.

Contents of the invention

The purpose of the present invention is to provide a pulley lever power car. The device is provided with a booster lever, so that the power car has sufficient overall power and strong load-bearing capacity, and a motor with a smaller power can be used to drive the power car to work, thereby reducing the number of batteries. Using two sets of 12V batteries, compared with the existing tricycles using six sets of 12V batteries, can drive a small-power motor to rotate at a lower power supply voltage, and through the action of the booster lever, the output torque of the motor can be increased. To expand, under the condition of the same load-bearing capacity, the six sets of 12V batteries are reduced to two sets, which saves electric energy.

In order to achieve the above object, the technical solution adopted by the present invention is: a pulley lever power car, including a chassis, a front wheel is installed on the lower side of the front end of the chassis, a bracket is welded on the upper side, the bracket is connected in rotation with the steering mechanism, and the steering mechanism and the front wheel Connection; the rear end of the chassis is welded with a frame, the middle part of the frame is fixedly installed with a drive motor, and the outer end of the drive motor shaft is fixedly installed with a motor pulley, the motor pulley is connected to the driven wheel through a belt, and the driven wheel is rotated and installed on the frame. The center of the driven wheel is fixedly connected to one end of the starting arm through a steel shaft, the other end of the starting arm is rotatably connected to the first link mechanism, the first link mechanism is rotatably connected to the power arm of the booster lever, and the booster lever is rotatably installed on the chassis , the resistance arm of the booster lever is rotationally connected to the second linkage, the second linkage is rotationally connected to the equal-arm lever, the equal-arm lever is rotationally connected to the connecting rod, the connecting rod is rotationally connected to one end of the pivoting arm, and the pivoting arm is The other end is fixedly connected with the inner end of the rear wheel axle, and the rear wheel axle is rotatably installed on the underside of the chassis, and the outer end of the rear wheel axle is fixedly connected with the center of the rear wheel.

Further, a battery is fixedly installed in the middle of the vehicle frame, a motor controller and a switch are fixedly installed in the side of the bracket, the battery is electrically connected to the switch, the switch is electrically connected to the motor controller, and the motor controller is electrically connected to the driving motor.

Further, a seat cushion is fixedly installed at the front end of the vehicle frame.

Further, the front end of the chassis is hinged with a joystick, the lower end of the joystick is hinged with the connecting thin rod, and the connecting thin rod is hinged with one end of the dislocation rod after passing through the sleeve, and the hinge is connected with the chassis through a spring; the middle part of the dislocation rod and the The chassis is horizontally rotated and connected, and the other end of the dislocation rod is welded with a steel ball, and the steel ball is located on one side of the connecting rod.

Further, the first link mechanism includes a first link, a first protrusion, a first pressure spring, a first slide bar and a first slide block, the upper end of the first link is rotatably connected to the starting arm, and the lower end It is fixedly connected with the first bump, and the first slide rod passes through the first slide block and the first compression spring in sequence and then fixedly connects with the first bump. The first compression spring is located between the first bump and the first slider, and the first The power arm of the slide block and the booster lever is rotatably connected.

Further, the second link mechanism includes a second link, a second protrusion, a second compression spring, a second slide bar and a second slide block, and the lower end of the second link and the resistance arm of the booster lever The rotation connection, the upper end is fixedly connected with the second projection, the second slide rod passes through the second slide block and the second compression spring in sequence and then fixedly connects with the second projection, and the second compression spring is located between the second slide block and the second compression spring Between, the second sliding block and the equal arm lever are rotationally connected.

Further, the length of the power arm of the booster lever is 7 times the length of the resistance arm.

Compared with the prior art, the present invention has the following beneficial effects:

One: the device drives the drive motor to run through the battery as the power supply, and the drive motor drives the driven wheel to rotate through the belt, and the starting arm fixed coaxially with the driven wheel rotates accordingly, and the starting arm drives the first link mechanism, the booster lever, the second The two-link mechanism, equal arm lever, connecting rod and rotating arm operate, and the design of the motor pulley, driven wheel and booster lever amplifies the power by 9-10 times, so the load capacity of the electric vehicle is increased to 3-4 times of the original, Solved the problem of poor load-bearing capacity of electric vehicles,

Second: This device changes the traditional structure that directly connects the motor to the electric wheel shaft. When the electric vehicle starts, due to the setting of the booster lever, the driving motor has a greater driving force, which overcomes the heavy load of the motor during driving. , easy to burn, and huge energy loss; however, the device accelerates quickly when it starts, and the speed reaches 25-35km/h when driving, and adopts four-wheel design, which has the advantages of good driving stability and higher driving speed than traditional tricycles.

Third: This device can use a motor with a smaller power to drive the power car to work, thereby reducing the number of batteries, from the original 6 sets of (72V) batteries to the current German 2 sets of (24V) batteries, which overcomes the high cost of battery use 1. The defect that the mileage after one charge is not ideal; due to the use of a motor with a smaller power for driving, the power consumption is reduced. The useful work has been greatly improved, saving energy and increasing the mileage.

Description of drawings

Fig. 1 is the left view (sectional view) of the present invention;

Fig. 2 is the schematic diagram of structure at A place of the present invention;

Fig. 3 is the structure schematic diagram of place B of the present invention;

Fig. 4 is the structural representation at C place of the present invention;

Fig. 5 is the right view figure (sectional view) of the present invention;

Fig. 6 is a working principle diagram of the present invention;

In the figure: 1. Chassis; 2. Bracket; 3. Motor controller; 4. Switch; 5. Steering mechanism; 6. Front wheel; 7. Joystick; Pulley; 11, drive motor; 12, belt; 13, seat cushion; 14, driven wheel; 15, starting arm; 16, first link mechanism; 16-1, first connecting rod; 16-2, first bump ; 16-3, the first stage clip; 6-4, the first slide bar; 16-5, the first slide block; 17, booster lever; 18, the second link mechanism; 18-1, the second link ; 18-2, the second bump; 18-3, the second stage clip; 18-4, the second slide bar; 18-5, the second slide block; 19, equal arm lever; 20, connecting rod; 21, Rotating arm; 22, rear wheel; 23, dislocation bar; 24, spring; 25, vehicle frame; 26, storage battery.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

As shown in Figure 1, a kind of pulley lever power vehicle comprises chassis 1, and front wheel 6 is installed on the lower side of chassis 1 front end, and bracket 2 is welded on the upper side, and bracket 2 and steering mechanism 5 are rotationally connected, and steering mechanism 5 and front wheel 6 connection; the rear end of the chassis 1 is welded with a vehicle frame 25, and the front end of the vehicle frame 25 is fixedly equipped with a seat cushion 13. Vehicle frame 25 middle parts are fixedly installed with driving motor 11, and driving motor 11 adopts rated voltage and is 24VDC, and rated current is 20A, rated power 500W, and the model is the motor of XD-37GB520. The rotating shaft outer end of drive motor 11 is fixedly installed with motor pulley 10, and the diameter of motor pulley 10 is 62mm. Motor pulley 10 is connected by belt 12 and driven pulley 14 transmissions, and the diameter of driven pulley 14 is 600mm. The driven wheel 14 is rotatably mounted on the vehicle frame 25, the center of the driven wheel 14 is fixedly connected to one end of the starting arm 15 through a steel shaft, the other end of the starting arm 15 is connected to the first link mechanism 16 in rotation, and the two ends of the starting arm 15 rotate around the axis The distance between them is 238.5mm. The power arm of the first link mechanism 16 and the booster lever 17 is rotatably connected, and the booster lever 17 is rotatably mounted on the chassis 1, and the resistance arm of the booster lever 17 is rotatably connected with the second link mechanism 18, and the booster lever The length of the power arm of 17 is 7 times the length of its resistance arm (it has been found through countless tests that if the ratio of the length of the power arm to the length of the resistance arm is greater than 7, the operation will not be good; to the maximum boosting effect, so the present embodiment adopts 7 times), the length of the power arm is 567mm, and the length of the resistance arm is 81mm. The second link mechanism 18 is rotationally connected with the equal-arm lever 19, and the power arm and the resistance arm of the equal-arm lever 19 are both 129mm. The equal-arm lever 19 is rotationally connected with the connecting rod 20, the connecting rod 20 is rotationally connected with one end of the rotating arm 21, the other end of the rotating arm 21 is fixedly connected with the inner end of the rear wheel axle, and the length of the rotating arm 21 is 42 mm, which is the connecting rod 20 and the center of connection of rotating arm 21 to the distance of connecting center of rotating arm 21 and rear wheel axle is 42mm. The rear wheel axle is rotatably mounted on the underside of the chassis 1, and the outer end of the rear wheel axle is fixedly connected to the center of the rear wheel 22.

As shown in FIG. 5 , a storage battery 26 is fixedly installed in the middle of the vehicle frame 25 , and the storage battery 26 adopts two sets of 12V lead storage batteries connected in series. A motor controller 3 and a switch 4 are fixedly installed on the side of the bracket 2 , the battery 26 is electrically connected to the switch 4 , the switch 4 is electrically connected to the motor controller 3 , and the motor controller 3 is electrically connected to the drive motor 11 . The motor controller 3 adopts a pulse DC motor controller whose model is X0540.

As shown in Figure 1, the front end of the chassis 1 is hinged with a joystick 7, the lower end of the joystick 7 is hinged with the connecting thin rod 8, and the connecting thin rod 8 is hinged with one end of the dislocation rod 23 after penetrating the casing 9, and this hinge is connected with the chassis. 1 is connected by a spring 24; the middle part of the displacement rod 23 is horizontally connected to the chassis 1, and the other end of the displacement rod 23 is welded with a steel ball, and the steel ball is located on the side of the connecting rod 20.

As shown in Figures 1 and 4, the first link mechanism 16 includes a first link 16-1, a first bump 16-2, a first compression spring 16-3, a first slide bar 16-4 and The first slider 16-5, the upper end of the first connecting rod 16-1 is rotatably connected with the starting arm 15, and the lower end is fixedly connected with the first bump 16-2, and the first slider 16-4 passes through the first slider in turn 16-5 and the first compression spring 16-3 are fixedly connected to the first protrusion 16-2, and the first compression spring 16-3 is located between the first protrusion 16-2 and the first slider 16-5, and the first The power arm of slide block 16-5 and booster lever 17 is rotatably connected. The design of the first stage clip 16-3 is to play buffering, decompression to booster lever 17, regulates the effect that booster lever runs smoothly.

As shown in Figures 1 and 3, the second link mechanism 18 includes a second link 18-1, a second bump 18-2, a second compression spring 18-3, a second slide bar 18-4 and The second slider 18-5, the lower end of the second connecting rod 18-1 is rotationally connected with the resistance arm of the booster lever 17, the upper end is fixedly connected with the second protrusion 18-2, and the second sliding rod 18-4 runs through in turn The second slider 18-5 and the second compression spring 18-3 are fixedly connected to the second protrusion 18-2, and the second compression spring 18-3 is located between the second slider 18-5 and the second compression spring 18-3. Between, the second slide block 18-5 is rotationally connected with the equal arm lever 19. The design of the second stage clip 18-3 is that the equal arm lever 19 plays buffering, decompression, regulates the effect that the equal arm lever runs smoothly.

It should be noted that the present invention is a pulley lever power car. When in use, the driver sits on the seat cushion 13 to drive and turns on the switch 4; when the power car moves forward, as shown in Figure 1, the motor controller 3 controls The drive motor 11 runs clockwise. The driving motor 11 drives the driven wheel 14 to rotate clockwise through the belt 12, and the driven wheel 14 drives the coaxially fixed starting arm 15 to rotate, and the starting arm 15 drives the upper end of the first linkage mechanism 16 to wind around the outer end of the starting arm 15 Rotate, the lower end of the first link mechanism 16 drives the power arm of the booster lever 17 to move upward around its fulcrum, the resistance arm of the booster lever 17 moves downward, and the resistance arm of the booster lever 17 is driven by the second link mechanism 18 The power arm of the equal arm lever 19 moves downward, and the resistance arm moves upward. The resistance arm of the equal arm lever 19 drives the upward movement of the connecting rod 20. The lower end of the connecting rod 20 acts on the rotating arm 21, and then drives the rear wheel 22 clockwise. Turn and move forward.

When the power car reverses, as shown in Figure 1, the motor controller 3 controls the drive motor 11 to run counterclockwise. The driving motor 11 drives the driven wheel 14 to rotate counterclockwise through the belt 12, and the driven wheel 14 drives the coaxially fixed starting arm 15 to rotate, and the starting arm 15 drives the upper end of the first linkage mechanism 16 to wind around the outer end of the starting arm 15 Rotate, the lower end of the first link mechanism 16 drives the power arm of the booster lever 17 to move downward around its fulcrum, the resistance arm of the booster lever 17 moves upward, and the resistance arm of the booster lever 17 is driven by the second link mechanism 18 The power arm of equal arm lever 19 moves upwards, and the resistance arm moves downward, and the resistance arm of equal arm lever 19 drives the downward movement of connecting rod 20, and the lower end of connecting rod 20 acts on rotating arm 21, and then drives rear wheel 22 reversely. Turn clockwise to reverse.

When the connecting rod 20 drives the rotating arm 21 to rotate, because the connecting rod 20 and the rotating arm 21 themselves have a certain weight, during operation, the rotating arm 21 has inertia to rotate around the rear wheel axle, so it is impossible to turn the rotating arm 21 to the highest point. stay, but because the connecting rod 20 and the rotating arm 21 themselves have a certain weight, after the power car stops running, the rotating arm 21 is all turned to the lowest point and stays, so this device is provided with a joystick 7, a connecting thin rod 8, Sleeve 9, misalignment lever 23 and spring 24 carry out position correction, in order to solve the problem that connecting rod 20 cannot drive the rotation of rotation arm 21 when the power vehicle starts when the rotation arm 21 is at the lowest point, the operator turns the joystick 7 backward by hand Pull, the lower end of the joystick 7 pulls the connecting thin rod 8 forward, the connecting thin rod 8 slides relative to the casing 9, and pulls the inner end of the dislocation rod 23 to move to the right, and compresses the spring 24, at this time the dislocation rod 23 Rotate around the midpoint, turn to the position as shown in Figure 2, and make the rotating arm 21 rotate a certain angle clockwise, and the connecting rod 20 at this time can drive the rotating arm 21 to rotate; when the rotating arm 21 rotates, due to the spring 24 The elastic force acts, and the dislocation rod 23 resets.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand all or part of the process for realizing the above embodiments, and according to the rights of the present invention The equivalent changes required still belong to the scope covered by the invention.

Claims (7)

1. a kind of pulley lever power vehicle, including chassis, front-wheel is installed on the downside of chassis front end, upside is welded with bracket, bracket and Steering mechanism's rotation connection, steering mechanism connect with front-wheel；It is characterized by: the extreme end of chassis is welded with vehicle frame, fixed in the middle part of vehicle frame Driving motor is installed, the shaft outer end of driving motor is fixedly installed with motor pulley, motor pulley by belt and from Driving wheel transmission connection, driven wheel are rotatablely installed on vehicle frame, and the center of driven wheel is fixedly connected by steel shaft with actuating arm one end, The power arm rotation connection of the actuating arm other end and the rotation connection of first connecting rod mechanism, first connecting rod mechanism and boosting lever, increases Power lever rotation is installed on chassis, the rotation connection of the resistance arm and second connecting rod mechanism of boosting lever, second connecting rod mechanism and Bascule rotation connection, bascule connect with link rotatable, and one end of connecting rod and cursor is rotatablely connected, cursor it is another One end is fixedly connected with rear axle inner end, and rear axle is rotatablely installed in chassis underside, rear axle outer end and rear-wheel The heart is fixedly connected.

2. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: be fixedly installed in the middle part of the vehicle frame Battery, the stent side portion are fixedly installed with electric machine controller and switch, and battery is electrically connected switch, and switch is electrically connected Electric machine controller, electric machine controller are electrically connected driving motor.

3. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: the vehicle frame front end is fixedly installed with Cushion.

4. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: the chassis front end is hinged with manipulation Bar, control stick lower end and connection thin bar are hinged, and connection thin bar is after casing and one end of dislocation bar is hinged, this hinged place and bottom Disk is connected by spring；In the middle part of the dislocation bar and chassis level rotation connection, the other end for the bar that misplaces are welded with steel ball, steel ball Positioned at connecting rod side.

5. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: the first connecting rod mechanism includes the One connecting rod, the first convex block, the first pressure spring, the first slide bar and the first sliding block, the first connecting rod upper end and actuating arm rotation connection, Lower end is fixedly connected with the first convex block, and the first slide bar is fixedly connected with the first convex block after sequentially passing through the first sliding block and the first pressure spring, Between the first convex block and the first sliding block, the power arm of the first sliding block and boosting lever is rotatablely connected first pressure spring.

6. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: the second connecting rod mechanism includes the Two connecting rods, the second convex block, the second pressure spring, the second slide bar and the second sliding block, the resistance of the second connecting rod lower end and boosting lever Arm rotation connection, upper end are fixedly connected with the second convex block, and the second slide bar sequentially passes through fixed company after the second sliding block and the second pressure spring The second convex block is connect, the second pressure spring is between the second sliding block and the second pressure spring, the second sliding block and bascule rotation connection.

7. a kind of pulley lever power vehicle according to claim 1, it is characterised in that: the power brachium of the boosting lever Degree is 7 times of its resistance arm lengths.