CN211764763U

CN211764763U - Front independent suspension system for light bus

Info

Publication number: CN211764763U
Application number: CN201922231951.0U
Authority: CN
Inventors: 孙永前; 曾浩然; 张丰登
Original assignee: Zhengzhou Jingyida Auto Parts Co Ltd
Current assignee: Zhengzhou Jingyida Auto Parts Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-27
Anticipated expiration: 2029-12-13

Abstract

The utility model provides a front independent suspension system for light passenger car, connect through the steering linkage between two wheel limit bodies, be connected with the stabilizer bar between two lower swing arms, be equipped with the damping stand above the lower swing arm, steering linkage one end is connected the left steering bracket, and the steering linkage other end is connected the right steering bracket, the utility model discloses can realize that the swizzle inclination and the wheel base change little through the unequal length arrangement and the longitudinal angle arrangement of upper swing arm and lower swing arm, can effectively reduce four-wheel positioning parameter and change, reduce tire wear; the damping strut occupies small space, and meanwhile, the spiral damping spring can flexibly adjust the rigidity according to the requirement of the whole vehicle, so that the suspension offset frequency can be effectively reduced, and the driving smoothness and riding comfort are improved; the thrust needle roller combined bearing is adopted in the left steering bracket and the right steering bracket, so that the internal friction of the system can be effectively reduced, and the steering aligning property is improved; meanwhile, the whole life cycle is free from maintenance in the using process, and the operation cost is reduced.

Description

Front independent suspension system for light bus

Technical Field

The utility model relates to a passenger train technical field, concretely relates to independent suspension system before light-duty passenger train is with.

Background

The suspension that uses on the present light bus is mostly non-independent suspension, and the unsprung mass is big, and ride comfort and operating stability are all relatively poor. Although some light passengers adopt torsion bar spring independent suspensions, the riding comfort and the driving smoothness cannot be ensured due to high offset frequency; and the arrangement of the torsion bar spring needs to occupy a large amount of space, which affects the arrangement of the battery. In addition, if an air spring independent suspension is adopted, the air bag is limited by the arrangement space of the chassis, and a small air bag is required to be selected as the air bag, so that the rigidity of a suspension system is larger, and the riding comfort and the driving smoothness are poor; in addition, the cost is increased due to the need of adding a separate gas source and a separate gas storage device; because the air suspension is limited by the space of the chassis, only a small air bag can be limited and selected, the rigidity of the suspension system is high, and the riding comfort and the driving smoothness are poor; in addition, the cost is increased due to the need of adding a separate gas source and a separate gas storage device; the torsion bar spring suspension cannot ensure riding comfort and driving smoothness due to high offset frequency; and the arrangement of the torsion bar spring needs to occupy a large amount of space, the arrangement of the battery is influenced, the interior of the existing steering bracket assembly on the market mostly adopts a copper sleeve structure, and the internal friction is large, so that the low-speed aligning performance of the whole vehicle is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a light-duty passenger train is with preceding independent suspension system.

The purpose of the utility model is realized with the following mode:

the utility model provides a light-duty passenger train is with preceding independent suspension system, includes the wheel limit body that sets up relatively, and swing arm is gone up in the articulated swing arm in wheel limit body upper end, and swing arm under the articulated of wheel limit body lower extreme, connect through steering linkage between two wheel limit bodies, be connected with the stabilizer bar between two swing arms down, be equipped with the damping stand below swing arm, steering linkage one end is connected the left and is turned to the bracket, and the right side that turns to the bracket is connected to the steering linkage other end.

The steering pull rod is connected with the wheel side body through a steering side pull rod ball pin, one end of the steering side pull rod is hinged with the steering pull rod through the ball pin, and the other end of the steering side pull rod is hinged with the wheel side body through the ball pin.

The two ends of the steering pull rod are respectively hinged with the left steering bracket and the right steering bracket through ball pins.

The upper swing arm is C-shaped, one end of the upper swing arm is hinged with the wheel edge body through a ball pin, and the other end of the upper swing arm is connected with the frame through a fifth bolt.

The lower swing arm is Y-shaped, one end of the lower swing arm is hinged with the wheel edge body through a ball pin, and the other end of the lower swing arm is connected with the frame through a second bolt.

The two ends of the stabilizer bar are hinged with the lower swing arm through a pull rod ball pin.

The stabilizer bar is provided with a rubber bearing and is connected with the frame through the rubber bearing.

The damping upright column comprises a damper and a damping spring, an upper damping pad is arranged at the upper end of the damper, a lower damping pad is arranged at the lower end of the damper, the damping spring is arranged between the upper damping pad and the lower damping pad, one end of the damping spring is connected with the upper damping pad in a clamped mode, the damping spring is sleeved with the damper, a U-shaped connecting seat is arranged at the lower end of the damper, the connecting seat is connected with a bushing of a lower swing arm through a bolt, a through hole matched with the bushing is formed in the lower swing arm, the bushing is fixedly arranged in the through hole, and the bushing is made of.

The left steering bracket and the right steering bracket are identical in structure and comprise supports, steering shafts are arranged inside the supports, one ends of the steering shafts are connected with steering pull rods through steering rocker arms, the steering shafts are fixedly connected with the steering rocker arms, the steering shafts are connected with the supports through needle roller bearings, threaded holes are formed in the supports, and the supports are rigidly connected with a vehicle frame through fourth bolts.

Compared with the prior art, the utility model can realize small change of the inclination angle and the wheel track of the main pin through the unequal length arrangement and the longitudinal angle arrangement of the upper swing arm and the lower swing arm, effectively reduce the change of four-wheel positioning parameters and reduce the abrasion of tires; the damping strut occupies small space, and meanwhile, the spiral damping spring can flexibly adjust the rigidity according to the requirement of the whole vehicle, so that the suspension offset frequency can be effectively reduced, and the driving smoothness and riding comfort are improved; the thrust needle roller combined bearing is adopted in the left steering bracket and the right steering bracket, so that the internal friction of the system can be effectively reduced, and the steering aligning property is improved; meanwhile, the whole life cycle is free from maintenance in the using process, and the operation cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic structural view of a damping column.

Fig. 4 is a schematic structural view of the left and right steering brackets.

The steering wheel comprises a wheel edge body 1, a damping upright post 2, a connecting seat 21, a shock absorber 22, a lower damping pad 23, a damping spring 24, an upper damping pad 25, an upper swing arm 3, a left steering bracket 4, a steering pull rod 5, a right steering bracket 6, a lower swing arm 7, a stabilizer bar 8, a steering side pull rod 9, a support 10, a steering shaft 11, a needle bearing 12 and a steering rocker 13.

Detailed Description

As shown in the attached drawings 1 to 4, the front independent suspension system for the light passenger car comprises wheel side bodies 1 which are arranged oppositely, wherein the upper ends of the wheel side bodies 1 are hinged with an upper swing arm 3, the lower ends of the wheel side bodies 1 are hinged with a lower swing arm 7, the two wheel side bodies 1 are connected through a steering pull rod 5, the two lower swing arms 7 are fixedly connected through a stabilizer bar 8, a damping upright post 2 is arranged above the lower swing arm 7, one end of the steering pull rod 5 is connected with a left steering bracket 4, the other end of the steering pull rod 5 is connected with a right steering bracket 6, the lengths of the upper swing arm 3 and the lower swing arm 7 are unequal, the upper swing arm 3 and the lower swing arm 7 are connected with a frame, and the longitudinal angle arrangement of the upper swing arm 3 and the lower swing arm 7 can realize small change of a master pin angle and a wheel base, so that four.

The left steering bracket 4 is connected to the one end of steering linkage 5, and the right steering bracket 6 is connected to the steering linkage 5 other end, and steering linkage 5 articulates wheel limit body 1 through turning to the side pull rod 9, turning to side pull rod 9 one end through first bolted connection steering linkage 5, and the side pull rod 9 other end passes through the ball round pin and connects wheel limit body 1, and steering linkage 5 carries out steering control through turning to side pull rod 9 to wheel limit body 1.

The two ends of the steering pull rod 5 are respectively connected with a left steering bracket 4 and a right steering bracket 6 through bolts, and the left steering bracket 4 and the right steering bracket 6 are connected with the frame to fix the steering pull rod 5.

Go up swing arm 3 and be the C type form, go up 3 one ends of swing arm and pass through ball round pin connection wheel limit body 1, go up 3 other ends of swing arm and pass through fifth bolted connection frame, go up 3 knuckles upper pivot that pass through ball round pin connection wheel limit body 1 of swing arm.

The lower swing arm 7 is Y-shaped, one end of the lower swing arm 7 is hinged to the wheel edge body 1 through a ball pin, the other end of the lower swing arm 7 is connected with the frame through a second bolt, and the lower swing arm 7 is hinged to the lower pivot of the steering knuckle of the wheel edge body 1 through the ball pin.

The two ends of the stabilizer bar 8 are connected with the lower swing arm 7 through a pull rod ball pin, the stabilizer bar 8 is flexibly connected with the lower swing arm 7, and a third gasket is sleeved on a third bolt.

The stabilizer bar 8 is provided with a rubber bearing, the stabilizer bar 8 is connected with the frame through the rubber bearing, the bearing seat is provided with a connecting hole, and the bearing seat is fixedly connected with the frame through the connecting hole.

The damping upright post 2 comprises a damper 22 and a damping spring 24, the upper end of the damper 22 is provided with an upper damping pad 25, the lower end of the upright post 22 is provided with a lower damping pad 23, the damping spring 24 is arranged between the upper damping pad 25 and the lower damping pad 23, one end of the damping spring 24 is connected with the upper damping pad 25 in a clamping manner, the damping spring 24 is sleeved with the damper 22, the lower end of the damper 22 is provided with a U-shaped connecting seat 21, the connecting seat 21 is connected with a bushing of a lower swing arm 7 through a bolt, the lower swing arm 7 is provided with a through hole matched with the bushing, the bushing is fixedly arranged in the through hole and made of rubber materials, the damping upright post 2 occupies a small space, the suspension frequency deviation can be as low as 1.2Hz, the ride comfort of a suspension system and the whole vehicle is improved, meanwhile, the spiral damping spring 24 can flexibly adjust the rigidity according to, the riding comfort and the driving smoothness are improved, and meanwhile, the structure is simple, the occupied space is small, and the cost is low.

The left steering bracket 4 and the right steering bracket 6 are identical in structure, the left steering bracket 4 and the right steering bracket 6 both comprise a support 10, a steering shaft 11 is arranged in the support 10, one end of the steering shaft 11 is connected with a steering pull rod 5 through a steering rocker arm 13, the steering shaft 11 is fixedly connected with the steering rocker arm 13, the steering shaft 11 is connected with the support 10 through a needle roller bearing 12, a threaded hole is formed in the support 10, the support 10 is rigidly connected with a vehicle frame through a fourth bolt, and thrust needle roller combined bearings are adopted in the left steering bracket 4 and the right steering bracket 6, so that the internal friction of a system can be effectively reduced, and the steering aligning property is improved; meanwhile, the whole life cycle is free from maintenance in the using process, and the operation cost is reduced.

The working process of the utility model is as follows: the upper part of a wheel edge body 1 is hinged with an upper swing arm 3, the lower part of the wheel edge body 1 is hinged with a lower swing arm 7 in a ball pin connection mode, a damping upright post 2 is connected on the lower swing arm through a bush, the damping upright post 2 is arranged in the middle of the space of the upper swing arm 3, the upper swing arm 3 is connected with a vehicle frame through a fifth bolt, the lower swing arm 7 is connected with the vehicle frame through a second bolt, a stabilizer bar 8 is arranged between the two lower swing arms 7, two ends of the stabilizer bar 8 are hinged with the lower swing arm 7 through a pull rod ball pin, the stabilizer bar 8 is fixedly connected with the vehicle frame through a connecting hole of a rubber bearing seat to inhibit the vehicle body from tilting, a steering pull rod 5 is arranged between the two wheel edge bodies 1, two ends of the steering pull rod 5 are hinged with the wheel edge body 1 through a steering side pull rod 9, the outermost end of the steering pull rod 5 is hinged with a, and then the steering pull rod 5 is positioned and fixed, and the steering pull rod 5 realizes the steering of the wheel side bodies 1 at two sides through a steering side pull rod.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a light-duty passenger train is with preceding independent suspension system, includes the relative wheel limit body that sets up, its characterized in that: the upper end of the wheel edge body is hinged with an upper swing arm, the lower end of the wheel edge body is hinged with a lower swing arm, the two wheel edge bodies are connected through a steering pull rod, a transverse stabilizer bar is connected between the two lower swing arms, a damping upright column is arranged above the lower swing arms, one end of the steering pull rod is connected with a left steering bracket, and the other end of the steering pull rod is connected with a right steering bracket.

2. The front independent suspension system for a light bus of claim 1, wherein: the steering pull rod is connected with the wheel side body through a steering side pull rod ball pin, one end of the steering side pull rod is hinged with the steering pull rod through the ball pin, and the other end of the steering side pull rod is hinged with the wheel side body through the ball pin.

3. The front independent suspension system for a light bus of claim 2, wherein: the two ends of the steering pull rod are respectively hinged with the left steering bracket and the right steering bracket through ball pins.

4. The front independent suspension system for a light bus of claim 1, wherein: the upper swing arm is C-shaped, one end of the upper swing arm is hinged with the wheel edge body through a ball pin, and the other end of the upper swing arm is connected with the frame through a fifth bolt.

5. The front independent suspension system for a light bus of claim 1, wherein: the lower swing arm is Y-shaped, one end of the lower swing arm is hinged with the wheel edge body through a ball pin, and the other end of the lower swing arm is connected with the frame through a second bolt.

6. The front independent suspension system for a light bus of claim 1, wherein: the two ends of the stabilizer bar are hinged with the lower swing arm through a pull rod ball pin.

7. The front independent suspension system for a light bus of claim 6, wherein: the stabilizer bar is provided with a rubber bearing and is connected with the frame through the rubber bearing.

8. The front independent suspension system for a light bus of claim 1, wherein: the damping upright column comprises a damper and a damping spring, an upper damping pad is arranged at the upper end of the damper, a lower damping pad is arranged at the lower end of the damper, the damping spring is arranged between the upper damping pad and the lower damping pad, one end of the damping spring is connected with the upper damping pad in a clamped mode, the damping spring is sleeved with the damper, a U-shaped connecting seat is arranged at the lower end of the damper, the connecting seat is connected with a bushing of a lower swing arm through a bolt, a through hole matched with the bushing is formed in the lower swing arm, the bushing is fixedly arranged in the through hole, and the bushing is made of.

9. The front independent suspension system for a light bus of claim 1, wherein: the left steering bracket and the right steering bracket are identical in structure and comprise supports, steering shafts are arranged inside the supports, one ends of the steering shafts are connected with steering pull rods through steering rocker arms, the steering shafts are fixedly connected with the steering rocker arms, the steering shafts are connected with the supports through needle roller bearings, threaded holes are formed in the supports, and the supports are rigidly connected with a vehicle frame through fourth bolts.