CN107284135B - Steering drive axle with normal ground clearance - Google Patents
Steering drive axle with normal ground clearance Download PDFInfo
- Publication number
- CN107284135B CN107284135B CN201710398878.9A CN201710398878A CN107284135B CN 107284135 B CN107284135 B CN 107284135B CN 201710398878 A CN201710398878 A CN 201710398878A CN 107284135 B CN107284135 B CN 107284135B
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- CN
- China
- Prior art keywords
- front axle
- shell
- tail end
- hinged
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B60B35/003—Steerable axles
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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
- B60B35/121—Power-transmission from drive shaft to hub
- B60B35/127—Power-transmission from drive shaft to hub using universal joints
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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
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- 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
- B60B35/16—Axle housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/16—Arrangement of linkage connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses a steering drive axle with normal ground clearance, which comprises a front axle shell, wherein the middle of the front axle shell is hinged with a bracket through a swing shaft and a front axle bracket; two ends of the front axle shell are connected with tail end shells, the outer sides of the tail end shells are hinged with steering knuckles, hinged pull rods are arranged between the tail end shells on two sides and the bracket, and steering tie rods are hinged between the steering knuckles on two sides; the front axle shell is internally provided with a main speed reducer, a differential assembly and two inner half shafts connected with the differential assembly, and the two inner half shafts are connected with two side outer half shafts through universal joints. The invention has the advantages that: when the road conditions such as irregular ground or sloping fields and the like exist, the angle between the wheels and the front axle shell can be changed along with the road conditions, so that the front axle shell can be matched with the posture of a vehicle body with a large slope for self-leveling, the contact surface between the tires and the ground can be enhanced, and the safety and the stability of running and operation are enhanced. And the axle is a driving axle, so that the large driving force of the vehicle is ensured, and the capabilities of overcoming obstacles and preventing skidding are realized.
Description
Technical Field
The invention relates to a vehicle steering axle, in particular to a steering drive axle with normal ground clearance.
Background
The hills mountain region is mainly with ground such as irregular ground, sloping ground more, and traditional tractor shifts and when the farmland operation in hills mountain area, the tractor gesture situation of change that topography and ground arouse is complicated changeable, and the unit stability of traveling is poor, and the navigating mate security is difficult to the guarantee. Therefore, in order to ensure the adaptability of the tractor in the mountainous region and realize the self-leveling of the tractor body on the sloping field, a novel steering axle is needed, which can automatically adapt to the road surface and can be matched with a posture active leveling device and a travelling mechanism to level the tractor body.
Land masses in hilly and mountainous areas are generally uneven, and each tire cannot be in sufficient contact with the ground when a tractor works, so that the dynamic property and the driving stability are reduced. Therefore, a new steering axle is needed, which can make the tire contact with the ground sufficiently.
The all-wheel drive vehicle has larger driving force and the ability of overcoming obstacles and preventing skidding. In many all-wheel-drive tractors, the front axle functions as a drive axle in addition to a steer axle.
However, the front axle of the existing tractor can not ensure that each tire is fully contacted with the ground while being adapted to the ground, so that the front axle of the existing tractor is easy to cause poor stability, easy rollover and other potential safety hazards.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a steering drive axle with a normal ground clearance, which is adaptable to irregular road conditions and sloping fields, can ensure sufficient contact between tires and the ground, and can be matched with the posture of a vehicle body for leveling to maintain the stability of the vehicle body.
The invention relates to a steering drive axle with normal ground clearance, which comprises a front axle shell, wherein the middle of the front axle shell is hinged with a bracket through a swing shaft and a front axle bracket, and the front axle bracket is fixedly connected with the bracket to ensure that the front axle shell can rotate around a machine body; the front axle shell is connected with end assemblies at two ends, each end assembly comprises an end shell and a steering knuckle, the end shell is connected with the tail end of the front axle shell, and the steering knuckle is connected to the outer side of the end shell.
Further, the front axle housing is an integral axle housing, and the front axle housing is horizontal.
Furthermore, the tail end shell is hinged with the front axle shell, so that the tail end shell can rotate around the front axle shell; the steering knuckle is hinged to the tail end shell, so that the steering knuckle can rotate around the tail end shell; and pull rods are hinged between the tail end shells on the two sides and the bracket, and steering tie rods are hinged between the steering knuckles on the two sides.
Furthermore, two ends of the pull rod are respectively hinged with the tail end shell and the bracket, the front axle shell is respectively hinged with the tail end shell and the front axle bracket, and when the road conditions such as irregular ground or sloping fields and the like exist, the angle between the wheels and the front axle shell changes along with the change, so that the front axle shell can be matched with the posture of a vehicle body with a large slope to be self-leveled, can adapt to the irregular ground, can also enhance the contact area between the tires and the ground, and enhances the driving safety and the driving stability;
furthermore, the front axle shell, the tail end shell, the bracket and the pull rod are hinged to form a quadrilateral shape, so that the stability of the mechanism is ensured;
furthermore, a main speed reducer and a differential assembly, two side inner half shafts connected with the main speed reducer and the differential assembly and two side middle half shafts connected with the two side inner half shafts through inner universal joints are arranged in the front axle housing, and the two side middle half shafts are connected with two side outer half shafts through two side outer universal joints; the power is transmitted to the left and right inner half shafts, the left and right inner universal joints, the left and right middle half shafts, the left and right outer universal joints, the left and right outer half shafts (transmission shafts) and the left and right wheel hubs through the main speed reducer and the differential mechanism assembly, so that the driving wheels rotate.
Further, the end shell and the knuckle are both hollow, and the front axle shell and end shell articulation axis (rotation axis) and the knuckle and end shell articulation axis (kingpin axis) intersect at the outer gimbal center. Thus, motion interference that automatically adapts to road conditions, drive and steer can be avoided.
The invention relates to a steering drive axle with normal ground clearance, which has the advantages that:
1. according to the steering drive axle with the normal ground clearance, the front axle shell can rotate around the central swing shaft and can also rotate around the front and rear rotating shafts of the tail end shell, so that the front axle shell can automatically adapt to working conditions such as irregular road conditions or sloping fields.
2. According to the steering drive axle with the normal ground clearance, the pull rod is hinged between the tail end shell and the bracket, so that the angle between the wheels and the axle can be changed along with road conditions, the contact area between the tires and the ground is increased, the road conditions are automatically adapted, and the stability of an automobile body is kept.
3. According to the steering drive axle with the normal ground clearance, the cross pull rod and the axle are hinged to form a quadrangle, so that the mechanism can be stably adapted to road condition changes.
4. The invention relates to a normally ground clearance steering drive axle, wherein the axis of a main pin, the axis of a rotating shaft hinged by a front axle shell and a tail end shell are intersected at one point, and the axis of a universal joint cross universal shaft can avoid the non-interference of the steering, driving and automatic ground adapting processes, and ensure the non-interruption of the power in the steering process.
Drawings
FIG. 1 is a schematic structural view of one embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a schematic structural view of the connection of the front axle housing and the bracket.
Fig. 5 is a schematic structural view of the posture adjustment mechanism in fig. 1.
Fig. 6 is a schematic structural view of the steering system of fig. 1.
Fig. 7 is a schematic diagram of a driving scheme.
The specific reference numbers in the figures are as follows:
1. left steering knuckle 2, left tail end shell 3, left pull rod 4 and bracket
5. Right pull rod 6, right tail end shell 7, right steering knuckle 8 and front axle shell
9. Front axle support 10, tie rod 11, right bolt 12, left bolt
13. Right pull rod inner side pin shaft 14 and right pull rod outer side pin shaft
15. Rotating shaft 16, left pin shaft 17, left main pin 18 and right main pin
19. A right pin shaft 20, a left rotating shaft 21, a left outer half shaft 22 and a left outer universal joint
23. A left middle half shaft 24, a left inner universal joint 25 and a left inner half shaft
Detailed Description
The invention is further illustrated by the following figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive in scope.
As shown in fig. 1, 2 and 3, a normally slack steer-drive axle, the external device of which comprises: front axle housing 8, bracket 4, front axle support 9, tie rod 10, left pull rod 3, right pull rod 5, left end housing 2, right end housing 6, left knuckle 1, right knuckle 7. Wherein, the front axle housing 8 is an integral axle housing and is horizontal.
As shown in FIG. 4, the steering drive axle with high ground clearance comprises a front axle housing 8, the middle of the front axle housing 8 is hinged with a bracket 4 through a swing shaft and a front axle bracket 9, wherein the front axle bracket 9 is fixedly connected with the bracket 4 through a left bolt 12 and a right bolt 11, and the front axle housing 8 can rotate around the bracket 4.
As shown in fig. 5, the right end housing 6 is hinged to the end of the front axle housing 8, the pin hole is arranged at the end of the front axle housing 8 and is horizontal, and the right end housing 6 rotates around the front axle housing 8 through the rotating shaft 15. The right side of the bracket 4 is provided with a pin shaft seat cavity, the upper end of the right tail end shell 6 is provided with a pin shaft seat cavity, a pin shaft 13 on the inner side of the right pull rod and a pin shaft 14 on the outer side of the right pull rod are both horizontal, the inner side of the right pull rod 5 is hinged with the bracket 4 through the pin shaft 13 on the inner side of the right pull rod, and the outer side of the right pull rod 5 is hinged with the right tail end shell 6 through the pin shaft 14 on the outer. The front axle shell 8, the right tail end shell 6, the right pull rod 5 and the bracket 4 are hinged to form a quadrangle, so that an attitude adjusting mechanism is formed, and the stability of the mechanism motion is ensured.
Similar to the structure of fig. 5, the end of the front axle housing 8 is hinged with the left end housing 2, the end of the front axle housing 8 is provided with a pin shaft hole, the pin shaft hole is horizontal, and the left end housing 2 rotates around the front axle housing 8 through a pin shaft. The left side of the bracket 4 is provided with a pin shaft seat cavity, the upper end of the left tail end shell 2 is provided with a pin shaft seat cavity, the arranged pin shafts are even, and the two ends of the left pull rod 3 are respectively hinged with the tail end shell 6 and the bracket 4. The front axle shell 8, the left tail end shell 2, the left pull rod 5 and the bracket 4 are hinged to form a quadrangle, so that an attitude adjusting mechanism is formed, and the stability of the mechanism motion is ensured.
The device ensures that when the road conditions such as irregular ground or sloping ground exist, the front axle shell 8 can rotate around the bracket 4, the right tail end shell 6 (or the left tail end shell 2) can rotate around the front axle shell 8, the angle between the right tail end shell 6 (or the left tail end shell 2) and the front axle shell 8 changes along with the rotation of the front axle shell 8, and the angle between the right wheel (or the right wheel) and the front axle shell 8 changes along with the rotation of the front axle shell 8, so that the front axle shell can be matched with the vehicle body posture of a large slope to be self-leveled, can adapt to the irregular ground, can also enhance the contact area between the tire and the ground, and enhances the driving safety and the driving stability.
As shown in fig. 6, a right knuckle 7 is hinged to the outer side of the right end shell 6, pin shaft holes are formed in the upper end and the lower end of the right knuckle 7, the right end shell 6 is of a hollow structure, a right main pin 18 is arranged at the upper end and the lower end of the right end shell 6, and the right knuckle 7 rotates around the right end shell 6. The outer side of the left terminal shell 2 is hinged with a left steering knuckle 1, the upper end and the lower end of the left steering knuckle 1 are provided with pin shaft holes, the left terminal shell 2 is of a hollow structure, the upper end and the lower end of the left terminal shell 6 are provided with left main pins 17, and the left steering knuckle 1 rotates around the left terminal shell 2. A steering tie rod 10 is arranged between the right steering knuckle 7 and the left steering knuckle 1, pin shaft seat cavities are arranged at two ends of the steering tie rod 10, and two ends of the steering tie rod 10 are hinged to the steering knuckle 1 and the steering knuckle 7 through a left pin shaft 16 and a right pin shaft 19 respectively. When the vehicle turns to, tie rod 10 drives right knuckle 7 and rotates round right terminal casing 6, drives left knuckle 1 simultaneously and rotates round left terminal casing 2, and right knuckle 7 drives the right side wheel, and left knuckle 1 drives the left side wheel, realizes turning to of whole car. When the steering is not performed, the right steering knuckle 7 and the right tail end are in fixed connection in a steering mode, and the left steering knuckle 1 and the left tail end are in fixed connection in a transmission mode.
As shown in FIG. 7, a main speed reducer and differential assembly, a left inner half shaft 25 and a right inner half shaft connected with the main speed reducer and differential assembly, a left inner universal joint 24 and a right inner universal joint connected with the inner half shaft are arranged in the front axle housing, and the mechanisms of the main speed reducer and differential assembly and the connection structure with the half shafts are all the prior art and are not described again. Power is transmitted to a left inner half shaft 25, a left inner universal joint 24 and a left middle half shaft 23 through a driving shaft, a main speed reducer and a differential assembly, then is transmitted to a left outer universal joint 22 and a left outer half shaft 21 (transmission shaft) to drive a left wheel hub, the structure of the right side is the same, and wheels are driven to rotate. The connection mechanisms of the left and right outer half shafts and the wheels are prior art and are not described in detail herein.
As shown in fig. 1 to 6, the rotation axis of the front axle housing 8 and the right end housing 6 is the right rotation axis 15, and the rotation axis of the right knuckle 7 and the right end housing 6 is the kingpin axis of the right kingpin 18. The rotating shafts of the front axle housing 8 and the left end housing 2 are left rotating shafts 20, and the rotating shafts of the left knuckle 1 and the left end housing 2 are king pin axes of the left king pin 17. The rotation axis and the main pin axis are crossed at the center of the outer universal joint, so that the motion interference in the processes of steering, driving and automatically adapting to the ground can be avoided, and the power interruption in the steering process is also ensured.
Claims (1)
1. A steering drive axle with normal ground clearance is characterized in that: the steering drive axle comprises a front axle shell which is an integral axle shell; the middle of the front axle shell is hinged with the bracket through a swing shaft and a front axle bracket; the front axle bracket is fixedly connected with the bracket to ensure that the front axle shell can rotate around the machine body; the two ends of the front axle shell are connected with tail end assemblies, each tail end assembly comprises a tail end shell and a steering knuckle, and the tail end shell is connected with the tail end of the front axle shell; the tail end shell is hinged with the front axle shell, the steering knuckles are hinged with the tail end shell, pull rods are hinged between the tail end shells on two sides and the bracket, and steering tie rods are hinged between the steering knuckles on two sides;
the front axle housing is internally provided with a main speed reducer, a differential assembly, two side inner half shafts connected with the main speed reducer and the differential assembly, and two side middle half shafts connected with the two side inner half shafts through two side inner universal joints, wherein the two side middle half shafts are connected with two side outer half shafts through two side outer universal joints;
the front axle housing is horizontal;
the front axle shell, the tail end shell, the bracket and the pull rod are hinged to form a quadrilateral shape, so that the stability of the mechanism is ensured;
the front axle shell and tail end shell hinge axis and the steering knuckle and tail end shell hinge axis intersect at the center of the outer universal joint;
the half shafts on two sides are respectively divided into an inner half shaft, a middle half shaft and an outer half shaft, the inner half shaft and the middle half shaft are connected through an inner universal joint, and the middle half shaft and the outer half shaft are connected through an outer universal joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398878.9A CN107284135B (en) | 2017-05-31 | 2017-05-31 | Steering drive axle with normal ground clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398878.9A CN107284135B (en) | 2017-05-31 | 2017-05-31 | Steering drive axle with normal ground clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107284135A CN107284135A (en) | 2017-10-24 |
| CN107284135B true CN107284135B (en) | 2019-12-31 |
Family
ID=60095058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710398878.9A Active CN107284135B (en) | 2017-05-31 | 2017-05-31 | Steering drive axle with normal ground clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284135B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225913B (en) * | 2017-05-31 | 2019-10-29 | 北京航空航天大学 | A kind of steering and driving axle of high-clearance |
| CN114161879A (en) * | 2020-09-10 | 2022-03-11 | 盐城市荣南机械制造有限公司 | Front drive axle of silage harvester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508241A (en) * | 2009-03-24 | 2009-08-19 | 颜志新 | Steer drive front-axle |
| CN102765298A (en) * | 2012-06-30 | 2012-11-07 | 南京创捷和信汽车零部件有限公司 | Front steering axle assembly |
| CN104742965A (en) * | 2015-02-05 | 2015-07-01 | 广西柳工机械股份有限公司 | Land leveler swing front axle steering mechanism |
| DE102014202914A1 (en) * | 2014-02-18 | 2015-08-20 | Zf Friedrichshafen Ag | Powered steerable axle |
-
2017
- 2017-05-31 CN CN201710398878.9A patent/CN107284135B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508241A (en) * | 2009-03-24 | 2009-08-19 | 颜志新 | Steer drive front-axle |
| CN102765298A (en) * | 2012-06-30 | 2012-11-07 | 南京创捷和信汽车零部件有限公司 | Front steering axle assembly |
| DE102014202914A1 (en) * | 2014-02-18 | 2015-08-20 | Zf Friedrichshafen Ag | Powered steerable axle |
| CN104742965A (en) * | 2015-02-05 | 2015-07-01 | 广西柳工机械股份有限公司 | Land leveler swing front axle steering mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107284135A (en) | 2017-10-24 |
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