CN110843443B - Tractor double bracket vibration reduction front drive axle - Google Patents
Tractor double bracket vibration reduction front drive axle Download PDFInfo
- Publication number
- CN110843443B CN110843443B CN201910967472.7A CN201910967472A CN110843443B CN 110843443 B CN110843443 B CN 110843443B CN 201910967472 A CN201910967472 A CN 201910967472A CN 110843443 B CN110843443 B CN 110843443B
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- bracket
- tractor
- floating
- floating bracket
- body assembly
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- 230000009467 reduction Effects 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000013016 damping Methods 0.000 abstract description 12
- 239000000725 suspension Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
- B60G9/02—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/32—Rigid axle suspensions pivoted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/422—Driving wheels or live axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/114—Leaf spring transversally arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/08—Agricultural vehicles
- B60G2300/082—Tractors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
本发明公开了一种拖拉机双托架减振前驱动桥，包括安装在拖拉机机体底部的固定托架，固定托架的后部铰接有浮动托架，固定托架与浮动托架之间设置有减振装置，驱动桥体总成通过摇摆轴安装在浮动托架上；由于驱动桥体总成相对于浮动托架可左右摆动，因此拖拉机行驶过程中，驱动桥体总成可以围绕浮动托架与驱动桥体总成之间的铰接点左右摆动，前桥驱动轮可以始终贴服在地面上，前桥驱动轮与地面的接触情况以及对各种地形的适应性比较好；固定托架与浮动托架之间设置有减振装置可大大地减小拖拉机在不平路面上行驶时的振动和冲击，减小驱动轮与车桥上动载荷及零件的损坏；且还具有刚度性能好、行驶稳定性较好、减振舒适、结构简单等优点。
The invention discloses a double-bracket vibration-damping front drive axle of a tractor, comprising a fixed bracket installed at the bottom of a tractor body, a floating bracket hinged at the rear of the fixed bracket, a vibration-damping device arranged between the fixed bracket and the floating bracket, and a drive axle body assembly installed on the floating bracket through a swing shaft; since the drive axle body assembly can swing left and right relative to the floating bracket, the drive axle body assembly can swing left and right around a hinge point between the floating bracket and the drive axle body assembly during the driving of the tractor, the front axle drive wheel can always be close to the ground, and the contact condition between the front axle drive wheel and the ground and the adaptability to various terrains are relatively good; the vibration-damping device is arranged between the fixed bracket and the floating bracket, which can greatly reduce the vibration and impact of the tractor when it is driving on an uneven road surface, and reduce the dynamic load on the drive wheel and the axle and the damage to parts; and the tractor also has the advantages of good rigidity performance, good driving stability, comfortable vibration reduction, simple structure and the like.
Description
Technical Field
The invention belongs to the technical field of tractors, and particularly relates to a front drive axle of a tractor with a vibration reduction function.
Background
At present, the front drive axle of a four-wheel tractor can be basically divided into three types, namely a rigid front drive axle, the front drive axle is fixed on a bracket of a machine body through a swinging shaft, the structure is simple, the rigidity is high, the requirement of low-speed operation of the tractor can be met, but the vibration impact from the ground can not be buffered because of no elastic element, and the vibration and the bumping of the whole tractor are particularly serious when the tractor runs at a high speed, so that the fatigue and discomfort of a driver are easily caused. The two types of elastic front axles are elastic front axles using two longitudinal leaf springs as vibration damping elements, the structural arrangement of the front axles is basically consistent with that of a leaf spring suspension of a truck, two ends of a leaf spring are connected to a frame, the middle of the leaf spring is fixed on a front axle shell by a U-shaped bolt, the vibration damping effect of the elastic front axles is good, but the problem of insufficient transverse rigidity of the suspension exists when the tractor works under heavy load, and the elastic front axles can only be applied to small and medium horsepower tractors. The three types are active vibration reduction type floating front drive axles, and the drive axles comprise oil-gas vibration reduction elements such as an electrohydraulic control system, an energy accumulator, a vibration reduction oil cylinder and the like, and have very complex structure and higher cost.
In order to improve the vibration damping performance of a front axle of a tractor, an elastic front axle of a four-wheel tractor is disclosed in the prior art, for example, the elastic front axle of the four-wheel tractor with the patent number CN201420517929.7, and comprises a bridge body and an angle shaft, wherein two ends of the bridge body are respectively fixedly connected with a supporting sleeve, the middle part of the bridge body is hinged with a connecting seat of a tractor frame through a swinging shaft, the angle shaft comprises a vertical shaft part and a transverse shaft part for installing a wheel assembly, a guiding sliding sleeve is movably arranged in the supporting sleeve, the vertical shaft part of the angle shaft is connected with the guiding sliding sleeve in a sliding key manner and sleeved with an elastic element, the elastic element is extruded between the end part of the supporting sleeve and the corner part of the angle shaft, the upper part of one guiding sliding sleeve is fixedly provided with a first rocker arm, the lower part of the guiding sliding sleeve is fixedly provided with a second rocker arm, and the lower part of the other guiding sliding sleeve is fixedly provided with a second rocker arm, and the positions of the two second rocker arms are corresponding.
However, the above patent is only a common steering axle, and cannot be applied to a tractor driving axle because of the inability to install a transmission mechanism, and the difficulty in realizing rigidity-variable adjustment due to the adoption of a coil spring or a rubber spring for an elastic element of the steering axle, and cannot adapt to the working environment of a tractor with large load change, so that the steering axle is still to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing the double-bracket vibration reduction front drive axle of the tractor, which has the advantages of simple structure, good rigidity performance and comfortable vibration reduction.
In order to solve the technical problems, the technical scheme is that the double-bracket vibration reduction front drive axle of the tractor comprises a fixed bracket arranged at the bottom of the tractor body, a floating bracket is hinged at the rear part of the fixed bracket, a vibration reduction device is arranged between the front part of the fixed bracket and the floating bracket, and a drive axle body assembly is arranged on the floating bracket in a left-right swinging mode.
As a preferable technical scheme, the fixed bracket is hinged with the rear part of the floating bracket through a connecting shaft, the axis of the connecting shaft is transversely arranged, and the swing axis between the floating bracket and the drive axle body assembly is longitudinally arranged.
As an optimized technical scheme, a front fixing frame and a rear fixing frame are relatively and fixedly arranged at the front end and the rear end of the floating bracket, a front swinging shaft and a rear swinging shaft are relatively and fixedly arranged at the front end and the rear end of the middle of the driving axle body assembly, the front fixing frame is arranged on the front swinging shaft in a left-right swinging mode, and the rear fixing frame is arranged on the rear swinging shaft in a left-right swinging mode.
As a preferable technical scheme, the vibration damper comprises a steel plate spring which is transversely arranged, the top end of the steel plate spring is fixedly connected to the fixed bracket through a U-shaped bolt, and the bottom end of the steel plate spring is contacted to the floating bracket.
Preferably, the vibration damping device is an air spring or a hydro-pneumatic spring arranged between the fixed bracket and the floating bracket.
As the preferable technical scheme, the driving axle body assembly comprises an axle housing body, a central transmission system is arranged in the axle housing body, a universal transmission shaft in transmission connection with the central transmission system is arranged at the rear end of the axle housing body, wheel edge speed reduction systems are respectively connected at two ends of the axle housing body, and a steering system is connected between the two wheel edge speed reduction systems.
Due to the adoption of the technical scheme, the double-bracket vibration reduction front drive axle of the tractor comprises the fixed bracket arranged at the bottom of the tractor body, wherein the rear part of the fixed bracket is hinged with the floating bracket, a vibration reduction device is arranged between the front part of the fixed bracket and the floating bracket, and the drive axle body assembly is arranged on the floating bracket in a left-right swinging way, and the invention has the beneficial effects that:
1. According to the invention, the vibration damper is added between the tractor body and the drive axle body assembly, so that vibration impact between the front drive axle and the tractor body in height is filtered and buffered, and the vibration damping performance of the front drive axle is greatly improved;
2. Because the drive axle body assembly swings left and right and is arranged on the floating bracket, the drive axle body assembly can swing left and right around a hinge point between the floating bracket and the drive axle body assembly in the running process of the tractor, the front axle driving wheel can be always attached to the ground, the contact condition of the front axle driving wheel and the ground and the adaptability to various terrains are good, the vibration and the inclination of the tractor body when the tractor runs on uneven roads are greatly reduced, the damage of the driving wheel, the dynamic load on an axle and parts is reduced, and the reliability and the service life of the tractor are improved;
3. The front fixing frame and the rear fixing frame are rigidly connected with the floating bracket, the front swing shaft and the rear swing shaft are rigidly connected with the drive axle body assembly, and the front swing shaft and the rear swing shaft are correspondingly rotationally connected with the front fixing frame and the rear fixing frame, so that the rigidity characteristic of the whole suspension is good, the suspension cannot transversely move during heavy-load operation of the tractor, and the running stability is good;
4. The vibration damper is arranged between the fixed bracket and the floating bracket, so that the structure is simple, the vibration damper can adapt to various elastic elements, the active suspension control system can be conveniently additionally arranged, the variable stiffness control is realized, and the vibration damping performance of the front axle is greatly improved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
FIG. 1 is an exploded view of a structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of an embodiment of the present invention;
The device comprises a 1-fixed bracket, a 11-first connecting hole, a 2-floating bracket, a 21-second connecting hole, a 3-connecting shaft, a 4-leaf spring, a 5-U-shaped bolt, a 6-axle housing body, a 7-front swing shaft, a 8-front fixing frame, a 9-rear fixing frame, a 10-universal transmission shaft, a 12-central transmission system, a 13-wheel-side speed reducing system and a 14-steering system.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
As shown in figures 1 and 2, the double-bracket vibration reduction front drive axle of the tractor comprises a fixed bracket 1 arranged at the bottom of the tractor body, wherein a floating bracket 2 is hinged at the rear part of the fixed bracket 1, the fixed bracket 1 and the floating bracket 2 are arranged up and down oppositely, a vibration reduction device is arranged between the front part of the fixed bracket 1 and the floating bracket 2, the drive axle body assembly swings left and right and is arranged on the floating bracket 2, the drive axle body assembly in the embodiment refers to the drive axle body assembly of the front axle of the tractor, when vibration is generated, the vibration reduction device can compress and reset between the fixed bracket 1 and the floating bracket 2, changes the relative height between the front part of the fixed bracket 1 and the front part of the floating bracket 2, so as to filter and buffer the vibration impact on the height between the floating bracket 2 and the fixed bracket 1, namely the vibration impact on the height between the front drive axle and the tractor body is buffered, the vibration reduction performance of the front drive axle body assembly is greatly improved, and the vibration reduction device can swing on the ground and the front drive axle body assembly is always in contact with the ground, the vibration reduction device can swing on the ground, the front drive axle assembly is well-mounted on the ground, the front drive axle is prevented from being damaged, and the life of the front drive axle is greatly reduced, and the running condition is greatly reduced.
The floating bracket comprises a fixed bracket body, a driving axle assembly, a floating bracket body, a driving axle assembly, a floating bracket 2, a first connecting hole 11, a second connecting hole 12, a connecting shaft 3, a pin shaft, a connecting shaft 3, a fixing bracket 1 and a connecting shaft 3, wherein the lower end of the rear part of the fixed bracket body 1 is provided with the first connecting hole 11, the upper end of the rear part of the floating bracket body 2 is provided with the second connecting hole 12 which is correspondingly matched with the first connecting hole 11, the first connecting hole 11 is hinged with the second connecting hole 12 through the connecting shaft 3, the fixing bracket body 1 and the floating bracket body 2 are hinged, the connecting shaft 3 can also limit the relative transverse position between the fixing bracket body 1 and the floating bracket body 2, the axis of the connecting shaft 3 is transversely arranged and is used for adapting to the change of the height between the fixing bracket body 1 and the floating bracket body 2, and the driving axle assembly is longitudinally arranged and is used for adapting to the transverse change of the floating bracket body assembly.
The front fixing frame 8 and the rear fixing frame 9 are fixedly installed at the front end and the rear end of the floating bracket 2, the front fixing frame 8 and the rear fixing frame 9 are fixedly connected to the floating bracket 2 and are rigidly connected to the floating bracket 2, a front swing shaft 7 and a rear swing shaft are fixedly installed at the front end and the rear end of the middle of the drive axle assembly, the front swing shaft 7 and the rear swing shaft are fixedly connected to the drive axle assembly and are rigidly connected to the drive axle assembly, the front fixing frame 8 is installed on the front swing shaft 7 in a left-right swinging mode, the front fixing frame 8 can rotate around the front swing shaft 7, the rear fixing frame 9 is installed on the rear swing shaft in a left-right swinging mode, and the rear fixing frame 9 can rotate around the rear swing shaft. Because the front fixing frame 8, the rear fixing frame 9 and the floating bracket 2 are rigidly connected, the front swinging shaft 7, the rear swinging shaft and the driving axle body assembly are rigidly connected, and the front swinging shaft 7, the rear swinging shaft and the front fixing frame 8 and the rear fixing frame 9 are rotatably connected, the rigidity characteristic of the whole suspension is good, the suspension cannot transversely move during heavy-load operation of the tractor, and the running stability is good.
The structural design of the fixed bracket 1 and the floating bracket 2 can be suitable for various elastic elements, and the active suspension control system can be conveniently additionally arranged, so that the variable stiffness control is realized, and the vibration reduction performance of the front axle is greatly improved. In this embodiment, referring to fig. 1, the vibration damping device is a leaf spring 4, the top end of the leaf spring 4 passes through a fixing hole of the fixing bracket 1 through a U-shaped bolt 5 to fixedly connect the upper surface of the leaf spring 4 with the lower surface of the fixing bracket 1, the bottom end of the leaf spring 4 is in contact connection with the upper surface of the floating bracket 2, the leaf spring 4 can buffer the vibration impact between the floating bracket 2 and the fixing bracket 1 in height through deformation, the leaf spring 4 can be a single-stage stiffness leaf spring, a double-stage stiffness leaf spring, a few leaf springs and a gradual stiffness leaf spring, the number of leaf springs can be 1-16, the greater the number of leaf springs, the better the vibration damping effect, but the weight of the vehicle body can be increased, so the design of the number of leaf springs is selected according to the actual use requirement, and is well known to those of ordinary skill in the art. Of course, the vibration damping device may be an air spring or a hydro-pneumatic spring mounted between the fixed bracket 1 and the floating bracket 2, and the air spring or the hydro-pneumatic spring is mounted between the fixed bracket 1 and the floating bracket 2.
The driving axle body assembly comprises an axle housing body 6, the front swing shaft 7 and the rear swing shaft are respectively and fixedly installed at the front end and the rear end of the axle housing body 6, a central transmission system 12 is arranged in the axle housing body 6, a universal transmission shaft 10 in transmission connection with the central transmission system 12 is arranged at the rear end of the axle housing body 6, wheel edge speed reduction systems 13 are respectively connected at two ends of the axle housing body 6, and a steering system 14 is connected between the wheel edge speed reduction systems 13.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910967472.7A CN110843443B (en) | 2019-10-12 | 2019-10-12 | Tractor double bracket vibration reduction front drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910967472.7A CN110843443B (en) | 2019-10-12 | 2019-10-12 | Tractor double bracket vibration reduction front drive axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110843443A CN110843443A (en) | 2020-02-28 |
| CN110843443B true CN110843443B (en) | 2025-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910967472.7A Active CN110843443B (en) | 2019-10-12 | 2019-10-12 | Tractor double bracket vibration reduction front drive axle |
Country Status (1)
| Country | Link |
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| CN (1) | CN110843443B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703253A (en) * | 2020-07-09 | 2020-09-25 | 山东五征集团有限公司 | A tractor longitudinal inclination adjustable front drive axle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077189A (en) * | 2019-04-09 | 2019-08-02 | 中联重科股份有限公司 | Tractor and front suspension structure thereof |
| CN211166298U (en) * | 2019-10-12 | 2020-08-04 | 山东五征集团有限公司 | Double-bracket vibration-damping front drive axle of tractor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554541A (en) * | 2003-12-23 | 2004-12-15 | 苑凤山 | Suspension overhead front bridge |
| CN104723817B (en) * | 2015-03-31 | 2017-03-29 | 河北开云汽车制造有限公司 | Horizontal multi-disc leaf spring band front steering axle assembly |
| CN204870368U (en) * | 2015-06-21 | 2015-12-16 | 马恒达悦达（盐城）拖拉机有限公司 | Novel tractor front -wheel drive axle assembly |
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2019
- 2019-10-12 CN CN201910967472.7A patent/CN110843443B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077189A (en) * | 2019-04-09 | 2019-08-02 | 中联重科股份有限公司 | Tractor and front suspension structure thereof |
| CN211166298U (en) * | 2019-10-12 | 2020-08-04 | 山东五征集团有限公司 | Double-bracket vibration-damping front drive axle of tractor |
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| Publication number | Publication date |
|---|---|
| CN110843443A (en) | 2020-02-28 |
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