CN219178920U

CN219178920U - Fatigue endurance test tool for automotive suspension

Info

Publication number: CN219178920U
Application number: CN202223536692.0U
Authority: CN
Inventors: 杨晓金; 杨雄; 李仲敏; 蔡丹
Original assignee: Wuhan Xince Standards Technical Services Co ltd
Current assignee: Wuhan Xince Standards Technical Services Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses an automobile suspension fatigue endurance test tool, which comprises an H-shaped support, wherein the H-shaped support comprises two upright posts and a supporting beam arranged between the upright posts, a mounting plate is arranged on the bottom surface of the supporting beam, two ends of the mounting plate are used for fixedly supporting a suspension to be tested, a support column is arranged on the top surface of the supporting beam, an adjusting cross beam is arranged at the top end of the support column, a telescopic lifting rod is arranged at two ends of the adjusting cross beam, and a loading plate is also arranged at two ends of the adjusting cross beam and fixedly connected with a hub of the suspension; when vertical endurance test loading is carried out, the bottom end of the telescopic lifting rod is disconnected with the loading plate. Upward acting force is applied to the hub of the suspension to be tested through the adjusting cross beam and the telescopic lifting rod, and the real vehicle state is simulated to carry out preloading, so that the suspension is more close to the stress state of the real vehicle suspension when the fatigue endurance experiment is carried out, and the accuracy of the experiment is improved.

Description

Fatigue endurance test tool for automotive suspension

Technical Field

The utility model relates to the technical field of endurance tests, in particular to an automobile suspension fatigue endurance test tool.

Background

The automobile suspension plays a critical role in vehicle running smoothness and riding comfort, is the most important related system in vehicle running performance, and is also a key for evaluating the whole vehicle performance. In the suspension design development stage, corresponding tools are required to be manufactured for fatigue endurance test, wherein the fatigue endurance test is respectively carried out in the vertical direction, the transverse direction and the longitudinal direction. The existing test fixture generally comprises the steps of fixing a suspension support, simulating a state of being installed on a vehicle body, fixing a loading plate on a wheel hub, and sequentially carrying out loading force to complete a test. Because the suspension is in a suspended state, and the initial state of the suspension on the real vehicle is to bear the weight of the vehicle body, namely a certain preload is applied, after the suspension is fixedly supported by a conventional test fixture, the initial stress state of the suspension deviates from the actual state, and the test result is affected.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the fatigue endurance test tool for the automotive suspension, which can fixedly support the suspension and simulate the real vehicle state to preload, so that the suspension is more close to the stress state of the real vehicle suspension when the fatigue endurance test is carried out, and the accuracy of the test is improved.

In order to solve the technical problems, the fatigue endurance test fixture for the automotive suspension comprises an H-shaped bracket, wherein the H-shaped bracket comprises two upright posts and a supporting beam arranged between the upright posts, the bottom surface of the supporting beam is provided with a mounting plate, two ends of the mounting plate are used for fixedly supporting a suspension to be tested, the top surface of the supporting beam is provided with a support post, the top end of the support post is provided with an adjusting cross beam, two ends of the adjusting cross beam are respectively provided with a telescopic lifting rod, and the fixture also comprises a loading plate fixedly connected with a hub of the suspension, and when the transverse endurance test and the longitudinal endurance test are carried out, the bottom end of the telescopic lifting rod is fixedly connected with the loading plate; when vertical endurance test loading is carried out, the bottom end of the telescopic lifting rod is disconnected with the loading plate.

Further, the supporting beams are longitudinally arranged along the vehicle body, the fixed height of the supporting beams is adjustable, the height of the suspension can be flexibly adjusted during test, the test is convenient to carry out, the supporting beams are also applicable to suspensions with various sizes, and the universality is high.

Further, the position of the strut fixed on the supporting beam is adjustable.

Furthermore, the telescopic lifting rod adopts a fisheye bearing connecting rod and comprises a screw rod and joint bearing rod ends which are connected with the two ends of the screw rod in a threaded manner. The length of the telescopic lifting rod can be easily adjusted by rotating the screw rod, and the suspension is preloaded, so that the suspension hub receives a certain upward acting force, the acting force of the suspension by the vehicle in an initial state is simulated, and the suspension is more close to the stressed state of the real vehicle suspension.

The beneficial effects of the utility model are as follows: the suspension to be tested is fixedly supported through the loading plate, upward acting force is applied to the hub of the suspension to be tested through the adjusting cross beam and the telescopic lifting rod, the real vehicle state is simulated for preloading, the suspension is enabled to be closer to the stress state of the real vehicle suspension when the fatigue endurance experiment is carried out, and the accuracy of the experiment is improved.

Drawings

In the drawings:

FIG. 1 is an overall structure diagram of an automobile suspension fatigue endurance test fixture of the utility model.

Fig. 2 is a block diagram of fig. 1 with two posts removed.

Fig. 3 is a structure diagram of a telescopic lifting rod of the automobile suspension fatigue endurance test tool.

FIG. 4 is a longitudinal load plate structure diagram of the automotive suspension fatigue endurance test tooling of the present utility model.

FIG. 5 is a view of the transverse loading plate of the inventive automotive suspension fatigue endurance test tooling.

FIG. 6 is a view of the vertical load plate of the inventive fixture for endurance test of automotive suspension.

Reference numerals illustrate: 1. an H-shaped bracket; 11. a column; 12. a support beam; 13. a foot post; 2. a mounting plate; 21. a front suspension fixation module; 22. a suspension rear fixing module; 23. a damper mounting module; 24. a spring plate; 3. a support post; 31. auxiliary support columns; 4. adjusting the cross beam; 5. a retractable lifting rod; 51. a screw rod; 52. a joint bearing rod end; 6. a loading plate; 61. a plate body; 62. and a loading seat.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model.

FIGS. 1-6 illustrate an automotive suspension fatigue endurance test fixture of the present utility model. As shown in fig. 1 and 2, the fatigue endurance test fixture for the automotive suspension comprises an H-shaped bracket 1, wherein the H-shaped bracket 1 comprises two upright posts 11 and a supporting beam 12 arranged between the upright posts 11, a mounting plate 2 is arranged on the bottom surface of the supporting beam 12, two ends of the mounting plate 2 are used for fixedly supporting a suspension to be tested, a support post 3 is arranged on the top surface of the supporting beam 12, an adjusting cross beam 4 is arranged at the top end of the support post 3, a telescopic lifting rod 5 is arranged at two ends of the adjusting cross beam 4, and the test fixture further comprises a loading plate 6 fixedly connected with a hub of the suspension, and when the transverse endurance test and the longitudinal endurance test are loaded, the bottom end of the telescopic lifting rod 5 is fixedly connected with the loading plate 6; when vertical endurance test loading is carried out, the bottom end of the telescopic lifting rod 5 is disconnected with the loading plate 6.

As shown in fig. 3, the telescopic lifting rod 5 adopts a fisheye bearing connecting rod, and comprises a screw rod 51 and joint bearing rod ends 52 which are connected with two ends of the screw rod 51 in a threaded manner. The length of the telescopic lifting rod 5 can be easily adjusted by rotating the screw rod 51, the height of the wheel hub relative to the suspension is adjusted, the suspension is preloaded, the suspension wheel hub receives a certain upward acting force, the acting force of the vehicle on the suspension in an initial state is simulated, and the suspension is more close to the stressed state of the real vehicle suspension.

Alternatively, the support beam 12 is arranged in the longitudinal direction of the vehicle body, and the adjustment cross member 4 is arranged in the transverse direction of the vehicle body. As shown in fig. 2, both ends of the mounting plate 2 are provided with a front suspension fixing module 21, a rear suspension fixing module 22, a damper mounting module 23, and a spring plate 24. The front suspension fixing module 21 and the rear suspension fixing module 22 are arranged on the bottom surface of the mounting plate 2 and are used for being connected with fork arms, connecting rods and other structures of the suspension; the shock absorber installation module 23 is arranged on the top surface of the installation plate 2 and is used for being fixedly connected with the top end of the shock absorber of the suspension; the spring disc 24 is arranged on the bottom surface of the mounting plate 2 and is used for mounting a spiral spring of the suspension, and finally, the suspension is simulated, fixed and supported.

Optionally, the fixed height of supporting beam 12 is adjustable, and during the test, can nimble height of adjusting the suspension, the test of being convenient for goes on, also can be suitable for the suspension of multiple size specification, the commonality is strong.

As shown in fig. 1, the upright 11 is square-tube-shaped, and the bottom end is provided with a foot plate 13. The upright post 11 and the supporting beam 12 are fixed through bolts, a plurality of groups of bolt holes fixedly connected with the end parts of the supporting beam 12 are formed in the upright post 11, and the height of the mounting plate 2 is adjusted through fixing the plurality of groups of bolt holes, so that the height of the fixed supporting suspension is adjusted.

Optionally, the H-shaped brackets 1 are two in total and are arranged at intervals, the top surfaces of the two supporting beams 12 are respectively provided with a supporting column 3, the supporting columns 3 are I-shaped, the positions of the supporting columns 3 fixed on the supporting beams 12 are adjustable, the whole test fixture is more stable and reliable, and auxiliary supporting columns 31 are further arranged on the top surfaces of the two ends of the mounting plate 2.

Alternatively, load plate 6 includes a plate body 61 fixedly coupled to the suspension hub and a load seat 62 provided on plate body 61. The wheel is fixedly connected with the hub bolts through the mounting holes on the plate body 61, and is connected with the output shaft of the test device through the loading seat 62, so that the stress of the wheel during the running of the real vehicle is simulated. The loading plate 6 can be designed with three total directions of loading force: the longitudinal load plate, the transverse load plate and the vertical load plate were used in three endurance tests, respectively.

As shown in fig. 4, which is a longitudinal load plate structure, the load seat 62 is disposed in the middle of the rear side edge of the longitudinal load plate, and since the loading force of the longitudinal endurance test is along the longitudinal direction of the vehicle, only the loading point, that is, the load seat 62 and the center of the hub, are maintained at the same level, and the distance between the two is not required to be set. The loading seat 62 can be a hinged support, so that the connecting part has a certain degree of freedom, the stress and deformation of the connecting part of the output shaft of the test device are reduced, and the damage is avoided.

As shown in fig. 5, which shows the structure of the transverse loading plate, since the vehicle is subjected to the transverse force and the longitudinal force, the direction of the loading force is not only along the transverse direction of the vehicle but also deviated from the transverse direction of the vehicle in the horizontal plane, and the point of application of the loading force is at the bottom end of the wheel in the transverse endurance test. Therefore, the loading seat 62 is designed at the bottom end of the plate 61, the loading seat 62 can be designed into a vertical rotating shaft, the output shaft of the test device is hinged with the rotating shaft, the direction of the loading force can be adjusted in a rotating manner, and in addition, the height difference between the rotating shaft and the center of the hub after being fixed is equal to the radius of the wheel.

As shown in fig. 6, which is a vertical loading plate structure, the loading seat 62 is in a handle type and is arranged at the back of the plate body 61, the loading point and the center of the hub are positioned on the cross section of the same vehicle, and the distance between the loading point and the center of the hub is not required to be set.

Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical aspects of the present utility model and not for limiting the scope thereof, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications or equivalents may be made to the specific embodiments of the present utility model after reading the present utility model, and these changes, modifications or equivalents are within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides an automotive suspension fatigue endurance test frock, its characterized in that includes H type support (1), H type support (1) include two stand (11) and locate supporting beam (12) between stand (11), be equipped with mounting panel (2) on the bottom surface of supporting beam (12), the both ends of mounting panel (2) are used for the fixed suspension of support waiting to test, be provided with pillar (3) on the top surface of supporting beam (12), the top of pillar (3) is provided with adjustment crossbeam (4), the both ends of adjustment crossbeam (4) all are provided with a scalable hoist and mount pole (5), still include be used for with the wheel hub fixed connection's of suspension loading board (6), when carrying out horizontal and vertical endurance test loading, the bottom and the loading board (6) fixed connection of scalable hoist and mount pole (5); when vertical endurance test loading is carried out, the bottom end of the telescopic lifting rod (5) is disconnected with the loading plate (6).

2. The automotive suspension fatigue durability test fixture according to claim 1, wherein the support beam (12) is arranged along the longitudinal direction of the vehicle body, and the fixed height of the support beam (12) is adjustable.

3. The automobile suspension fatigue endurance test tool according to claim 2, wherein the upright post (11) and the supporting beam (12) are fixed through bolts, and a plurality of groups of bolt holes fixedly connected with the end parts of the supporting beam (12) are formed in the upright post (11).

4. The automotive suspension fatigue endurance test tool according to claim 2, wherein the upright (11) is square-tube-shaped, and the bottom end is provided with a foot plate (13).

5. The automobile suspension fatigue endurance test tool according to claim 1, wherein the number of the H-shaped brackets (1) is two, the H-shaped brackets are arranged at intervals, the top surfaces of the two supporting beams (12) are respectively provided with one supporting column (3), and the supporting columns (3) are I-shaped.

6. The automotive suspension fatigue endurance test tool according to claim 1, wherein the position of the strut (3) fixed to the support beam (12) is adjustable.

7. The automotive suspension fatigue endurance test fixture according to claim 1, wherein the adjusting cross beam (4) is arranged along the transverse direction of the vehicle body.

8. The automobile suspension fatigue endurance test tool according to claim 1, wherein the telescopic lifting rod (5) adopts a fisheye bearing connecting rod and comprises a screw rod (51) and joint bearing rod ends (52) which are connected with two ends of the screw rod (51) in a threaded manner.

9. The automotive suspension fatigue endurance test tool according to claim 1, wherein both ends of the mounting plate (2) are provided with a suspension front fixing module (21), a suspension rear fixing module (22), a damper mounting module (23) and a spring plate (24).

10. The automotive suspension fatigue endurance test tool according to claim 1, wherein the loading plate (6) comprises a plate body (61) fixedly connected with the suspension hub and a loading seat (62) arranged on the plate body (61).