A connecting tool for automobile suspension durability test

Abstract

The application provides a kind of automobile suspension endurance test connecting tool, including wheel load clamp, wheel offset plate, upper rotating shaft, rotating shaft connecting piece, lower rotating shaft, wheel track adjusting plate, loading beam and hydraulic servo actuator connecting clamp;The top of both ends of the loading beam is sequentially provided with wheel load clamp, wheel offset plate, upper rotating shaft, rotating shaft connecting piece, lower rotating shaft and wheel track adjusting plate from top to bottom, and the middle of the bottom surface is provided with hydraulic servo actuator connecting clamp.The beneficial effects of the application are that only a single hydraulic servo actuator is connected to perform vertical loading, which can simulate the actual stress state of the double wheels of the whole vehicle suspension, so as to perform the vertical endurance test of the whole vehicle suspension.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile suspension, in particular to a kind of automobile suspension endurance test connecting tool. BACKGROUND

[0002] In recent years, the demand of new energy vehicles of our country is increasing year by year, and the quality of new energy vehicles is heavier than that of traditional fuel vehicles. The reliability requirement of users for vehicles is higher and higher, and it is very important to provide more reliable suspension system for users in the era of new energy vehicles. At present, the automobile market is competitive, and various automobile enterprises have invested a lot of energy in the cost and quality of suspension system performance verification. How to verify the reliability of vehicle suspension system more efficiently and at lower cost has become a key research topic.

[0003] At present, there are few vertical endurance test bench building schemes for vehicle suspension systems. Most of the test benches are used for durability test of single suspension parts, and the system level working condition of vehicle suspension is not considered. In addition, two separate hydraulic servo actuators are needed in the test verification of most test benches, which increases the demand for basic equipment, and the test bench setting time is also longer. In order to meet the needs of the current automobile market and improve the cost and cycle of development and verification, a connecting tool is urgently needed, which can carry out vertical durability test of suspension by using only a single hydraulic servo actuator. SUMMARY

[0004] To solve the above problems, the present application discloses a kind of automobile suspension endurance test connecting tool, only connect single hydraulic servo actuator to carry out vertical loading, it can simulate the actual stress state of double wheels of vehicle suspension, to carry out vertical endurance test of vehicle suspension.

[0005] The specific scheme is as follows:

[0006] A kind of automobile suspension endurance test connecting tool, including wheel load clamp, wheel offset plate, upper rotating shaft, rotating shaft connecting piece, lower rotating shaft, wheel track adjusting plate, loading beam and hydraulic servo actuator connecting clamp;The top of the both ends of the loading beam is sequentially provided with wheel load clamp, wheel offset plate, upper rotating shaft, rotating shaft connecting piece, lower rotating shaft and wheel track adjusting plate from top to bottom, and the bottom surface is provided with hydraulic servo actuator connecting clamp.

[0007] Further, the wheel load clamp is composed of a first vertical plate, a first bottom plate and a clamp reinforcing rib, wherein the first vertical plate is a wheel bolt mounting surface, which is assembled by opening according to different test vehicles and is vertically fixed on the top surface of the first bottom plate, and the bottom surface of the first bottom plate is fixedly connected with the wheel offset plate;A plurality of clamp reinforcing ribs are arranged between the first vertical plate and the first bottom plate to make the wheel load clamp have sufficient strength.

[0008] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0009] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0010] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0011] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0012] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0013] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0014] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0015] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0016] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0017] Further, the wheel offset plate is composed of a second bottom plate and two second vertical plates symmetrically arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp, the second vertical plate is fixedly connected with the second bottom plate, the lower end of the second vertical plate is provided with a rotating shaft mounting hole, and the upper rotating shaft is cooperatively installed.

[0018] Further, the wheel load clamp side mounting surface is connected with the wheel bolt of the tested vehicle body suspension system; the hydraulic servo actuator connecting clamp is connected with the hydraulic servo actuator, and the hydraulic servo actuator is driven to simultaneously vertically load two wheels of the tested vehicle body suspension system through the automobile suspension durability test connecting tool.

[0019] The present application has the advantages of:

[0020] 1. The present application only needs to use a single hydraulic servo actuator for loading, so as to realize the durability verification of the suspension double wheels. Compared with the traditional tool scheme which needs to use two hydraulic servo actuators to realize the function, the investment cost of the basic equipment for automobile test development is saved.

[0021] 2. The tool scheme of the present application is simple in tool manufacturing, small in part quantity, high in convenience of rack erection, short in cycle, good in consistency of rack test results, high in repeatability of problem verification, and compared with the real vehicle road test durability test, the problem can be found earlier, and the problem countermeasure effectiveness can be verified faster, so that the present design helps to shorten the test verification cycle and reduce the test verification cost.

[0022] 3. The present application scheme is good in adaptability to different vehicle models, wherein the wheel track of the tool can be freely adjusted to adapt to different vehicle models, the tool also considers that the wheel track keeps consistent with the actual tire, in addition, the tool also considers that the motion envelope of the wheel center is an arc trajectory, there will be displacement in the left-right direction and the front-rear direction of the tested vehicle body suspension system, and the motion trajectory is not restricted. In summary, the tool scheme is close to the motion state of the wheel under the whole vehicle working condition, so that the test verification result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the present application;

[0024] Figure 2 is a schematic diagram of the connected hydraulic servo actuator of the present application;

[0025] Figure 3 is a schematic diagram of the connected vehicle body suspension system of the present application.

[0026] LIST OF REFERENCE NUMERALS

[0027] 1-wheel load clamp, 2-wheel offset plate, 3-upper rotating shaft, 4-rotating shaft connecting piece, 5-lower rotating shaft, 6-wheel track adjusting plate, 7-loading cross beam, 8-hydraulic servo actuator connecting clamp, 9-hydraulic servo actuator, 10-vehicle body suspension system. DETAILED DESCRIPTION

[0028] The present application is further illustrated in conjunction with the accompanying drawings and specific embodiments, it should be understood that the following specific embodiments are only used to illustrate the present application and not to limit the scope of the present application.

[0029] As shown in the figure, the present application provides a kind of automobile suspension endurance test connecting tool, including wheel load clamp 1, wheel offset plate 2, upper pivot 3, pivot connecting piece 4, lower pivot 5, wheel track adjusting plate 6, loading beam 7 and hydraulic servo actuator connecting clamp 8;The top of the two ends of loading beam 7 is sequentially provided with wheel load clamp 1, wheel offset plate 2, upper pivot 3, pivot connecting piece 4, lower pivot 5 and wheel track adjusting plate 6 from top to bottom, and hydraulic servo actuator connecting clamp 8 is arranged in the middle of bottom surface.

[0030] In the embodiment, wheel load clamp 1 is composed of first vertical plate, first bottom plate and clamp reinforcing rib, wherein the first vertical plate is wheel bolt mounting surface, and is assembled according to different test vehicle and is vertically fixed on the top surface of first bottom plate, and the bottom surface of first bottom plate is fixedly connected with wheel offset plate 2;A plurality of clamp reinforcing ribs are arranged between the first vertical plate and the first bottom plate, so that the wheel load clamp has considerable strength.

[0031] In the embodiment, wheel offset plate 2 is composed of second bottom plate and two second vertical plates symmetrically arranged on the bottom surface thereof, the top surface of second bottom plate is fixedly connected with the bottom plate of wheel load clamp 1, the second vertical plate is fixedly connected with the second bottom plate, and the lower end of the second vertical plate is provided with pivot mounting hole and is matched with upper pivot 3.

[0032] In the embodiment, wheel track adjusting plate 6 is composed of third bottom plate and two third vertical plates symmetrically arranged on the top surface thereof, the bottom surface of third bottom plate is connected with the top surface of loading beam 7, the third vertical plate is fixedly connected with the third bottom plate, and the upper end of the third vertical plate is provided with pivot mounting hole and is matched with lower pivot 5.

[0033] In the embodiment, upper pivot 3 and lower pivot 5 are both solid round shafts, the upper pivot is used to connect wheel offset plate 2 and pivot connecting piece 4, and the lower pivot is used to connect pivot connecting piece 4 and wheel track adjusting plate 6.

[0034] In the embodiment, pivot connecting piece 4 is provided with pivot mounting hole at both ends, and is connected with wheel offset plate 2 and wheel track adjusting plate 6 through upper pivot 3 and lower pivot 5.

[0035] In the embodiment, the loading beam 7 is composed of long I-beams, beam stiffeners and two symmetrical mounting panels, wherein the beam stiffeners are uniformly and symmetrically fixed on both sides of the long I-beams to enhance the bending stiffness of the I-beams as a whole through the stiffeners; the mounting panels are symmetrically fixed to the top surfaces of both ends of the long I-beams, and two long waist-shaped holes are formed in the mounting panels along the length direction of the long I-beams, and the wheel track adjusting plates are mounted on the mounting panels; the bottom surface of the long I-beam is provided with a mounting hole for connecting with the hydraulic servo actuator connecting clamp 8.

[0036] In the embodiment, the hydraulic servo actuator connecting clamp 8 is a short I-beam, the upper end of which is connected with the loading beam 7, and the lower end of which is connected with the hydraulic servo actuator 9.

[0037] In the embodiment, the wheel load clamp 1, the wheel offset plate 2, the rotating shaft 3, the rotating shaft connecting piece 4, the lower rotating shaft 5 and the wheel track adjusting plate 6 are provided with two groups, and the other group is completely mirror image, and the two groups are symmetrically mounted on the left and right sides of the loading beam 7. After complete installation, the 9-hydraulic servo actuator is used for driving, so that the automobile suspension durability test connecting tool can simultaneously vertically load two wheels of the tested 10-vehicle body suspension system.

[0038] The working principle and use process are as follows:

[0039] S1, the operator connects the wheel load clamp 1 with the wheel offset plate 2, adjusts the installation position according to the wheel offset value of the tested vehicle model, and finally makes the horizontal distance from the installation surface of the vehicle body suspension system 10 to the center of the upper rotating shaft 3 equal to the wheel offset value of the tested vehicle model.

[0040] S2, the rotating shaft connecting piece 4, the lower rotating shaft 5 and the wheel track adjusting plate 6 are connected, and then the wheel track adjusting plate 6 is connected with the loading beam 7, the position of the wheel track adjusting plate 6 on the loading beam 7 is adjusted according to the wheel track value of the vehicle model at this time, and finally the horizontal distance from the center of the lower rotating shaft 5 to the center of the loading beam 7 is equal to half of the actual wheel track of the tested vehicle model. The other group is adjusted according to the same method, and finally completely symmetrically with the center of the loading beam 7 as the symmetry axis.

[0041] S3, the hydraulic servo actuator connecting clamp 8 is connected to the bottom of the loading beam 7.

[0042] S4, the hydraulic servo actuator connecting clamp 8 is connected with the single-shaft connecting head of the hydraulic servo actuator 9, and the wheel load clamp 1 is connected with the vehicle body suspension system 10, and the test bench is completed, and the tested vehicle body suspension system is kept up and down under the automobile suspension durability test connecting tool described in the case.

[0043] The wheel track of the tooling can be freely adjusted to adapt to different test vehicles, and the wheel track of the tooling is consistent with the rim of the actual test vehicle. In addition, the tooling also considers that the motion envelope of the wheel center in the actual working condition is an arc trajectory, and the test vehicle body suspension system 10 will have displacement in the left-right direction and the front-rear direction. The tooling does not constrain this motion trajectory. By using the shaft connecting piece 4, the effect of two one-way shafts is realized, the displacement adaptation of the wheel center in the left-right direction is completed, and the displacement in the front-rear direction can also be adapted after the single shaft connecting head of the hydraulic servo actuator connecting clamp 8 and the hydraulic servo actuator 9 is connected. In summary, the present embodiment can realize the durability test of the suspension double wheels in the vertical direction by using a single hydraulic servo actuator, and can adapt to the actual motion state of the wheels under the working condition of the whole vehicle. The test verification result will be closer to the actual result.

[0044] The technical means disclosed in the present application scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which are also considered as the protection scope of the present application.

Claims

1. An automobile suspension durability test connecting tool characterized by comprising: The application relates to a wheel load test device, which comprises a wheel load clamp (1), a wheel offset plate (2), an upper rotating shaft (3), a rotating shaft connecting piece (4), a lower rotating shaft (5), a wheel track adjusting plate (6), a loading beam (7) and a hydraulic servo actuator connecting clamp (8).

2. The connecting tool for durability test of automobile suspension according to claim 1, characterized in that, The wheel load clamp (1) is composed of a first vertical plate, a first bottom plate and clamp reinforcing ribs, wherein the first vertical plate is a wheel bolt mounting surface and is vertically fixed on the top surface of the first bottom plate, and the bottom surface of the first bottom plate is fixedly connected with the wheel offset plate (2); a plurality of clamp reinforcing ribs are arranged between the first vertical plate and the first bottom plate.

3. The connecting tool for durability test of automobile suspension according to claim 2, characterized in that, The wheel offset plate (2) is composed of a second bottom plate and two symmetrical second vertical plates arranged on the bottom surface of the second bottom plate, the top surface of the second bottom plate is fixedly connected with the bottom plate of the wheel load clamp (1), the second vertical plates are fixedly connected with the second bottom plate, and rotating shaft mounting holes are formed in the lower ends of the second vertical plates and are matched with the upper rotating shaft (3).

4. The connecting tool for durability test of automobile suspension according to claim 3, characterized in that, The wheel track adjusting plate (6) is composed of a third bottom plate and two symmetrical third vertical plates arranged on the top surface of the third bottom plate, the bottom surface of the third bottom plate is connected with the top surface of the loading beam (7), the third vertical plates are fixedly connected with the third bottom plate, rotating shaft mounting holes are formed in the upper ends of the third vertical plates and are matched with the lower rotating shaft (5).

5. The connecting tool for durability test of an automobile suspension according to claim 4, wherein The upper rotating shaft (3) and the lower rotating shaft (5) are solid circular shafts, the upper rotating shaft is used for connecting the wheel offset plate (2) and the rotating shaft connecting piece (4), and the lower rotating shaft is used for connecting the rotating shaft connecting piece (4) and the wheel track adjusting plate (6).

6. The connecting tool for durability test of an automobile suspension according to claim 5, wherein The rotating shaft connecting piece (4) is provided with rotating shaft mounting holes at two ends and is connected with the wheel offset plate (2) and the wheel track adjusting plate (6) through the upper rotating shaft (3) and the lower rotating shaft (5).

7. The connecting tool for durability test of automobile suspension according to claim 6, characterized in that, The loading beam (7) is composed of a long I-shaped steel, beam reinforcing ribs and two symmetrical mounting panels, wherein the beam reinforcing ribs are uniformly and symmetrically fixed on the two sides of the long I-shaped steel; the mounting panels are symmetrically fixedly connected to the top surfaces of the two ends of the long I-shaped steel, two long waist type holes are formed in the mounting panels along the length direction of the long I-shaped steel, the wheel track adjusting plate is mounted on the mounting panels, and a mounting hole position is arranged in the center of the bottom surface of the long I-shaped steel and is used for being connected with the hydraulic servo actuator connecting clamp (8).

8. The connecting tool for durability test of automobile suspension according to claim 7, characterized in that, The hydraulic servo actuator connecting clamp (8) is a short I-shaped steel, the upper end of the short I-shaped steel is connected with the loading beam (7), and the lower end of the short I-shaped steel is connected with the hydraulic servo actuator (9).

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