CN219529693U

CN219529693U - Automobile performance test bed

Info

Publication number: CN219529693U
Application number: CN202320516040.6U
Authority: CN
Inventors: 李薇; 李葛; 门海; 李红娟
Original assignee: Shanghai Haoshi Technology Development Co ltd
Current assignee: Shanghai Haoshi Technology Development Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-15
Anticipated expiration: 2033-03-16

Abstract

The utility model provides an automobile performance test bed, which comprises a vibration reduction box, wherein the vibration reduction box is fixed in the middle of the top surface of a sizing block, the sizing block is fixed in the middle of the top surface of a steel plate, and the steel plate is fixed on the ground; an air spring is arranged in the vibration reduction box, a top plate is arranged on the upper side of the air spring, a bottom plate is arranged on the lower side of the air spring, and a heating element is arranged between the bottom plate and the air spring; and a temperature sensor is arranged on the adjacent side of the air spring, and the temperature sensor is electrically connected with the controller. In the structure, the trapezoid structure formed by taking the air spring as a core has the characteristics of high stability and vibration reduction effect, the heating element is arranged at the bottom of the air spring, when the temperature of the air spring is too low, the temperature of the air spring can be increased through the heating element, the problem that the performance of the air spring is influenced by the too low temperature is avoided, the vibration reduction effect of the air spring is ensured, and therefore the air spring is suitable for test vibration reduction of automobile performance under different environment temperatures.

Description

Automobile performance test bed

Technical Field

The utility model belongs to the field of automobile performance tests, and particularly relates to an automobile performance test bed.

Background

The automobile performance refers to the capability of an automobile to work with the highest efficiency under certain use conditions, and mainly comprises dynamic performance, fuel economy, braking performance, noise, vibration, sound vibration roughness, steering stability and the like.

When performance test is carried out on the whole automobile and parts, the interference of external vibration to the performance test of the automobile is particularly large, the problem of interference of the external vibration to the performance test of the automobile can be solved to a certain extent by arranging the vibration reduction test bed, but the stability of the existing vibration reduction test bed is poor, the vibration reduction effect can be influenced by the external temperature, and the vibration reduction requirement of the performance test of the automobile at different temperatures can not be met.

How to design an automobile performance test bed and how to increase the accuracy of the automobile performance test becomes an urgent problem to be solved.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an automobile performance test stand for solving the problem in the prior art that the accuracy of the test result is low due to the influence of external vibration during the automobile performance test.

In order to achieve the above purpose, the utility model provides an automobile performance test stand, which comprises a vibration reduction box, wherein the vibration reduction box is fixed in the middle of the top surface of a sizing block, the sizing block is fixed in the middle of the top surface of a steel plate, and the steel plate is fixed on the ground;

an air spring is arranged in the vibration reduction box, a top plate is arranged on the upper side of the air spring, a bottom plate is arranged on the lower side of the air spring, and a heating element is arranged between the bottom plate and the air spring;

and a temperature sensor is arranged on the adjacent side of the air spring, and the temperature sensor is electrically connected with the controller.

By adopting the technical scheme: the vibration reduction box, the sizing block and the steel plate form a trapezoid supporting structure, so that the overall use cost can be reduced as much as possible, the self-installation stability of the vibration reduction box is ensured, and preconditions are provided for the vibration reduction box to exert the maximized vibration reduction effect; the vibration reduction box is arranged, and the air springs are arranged in the vibration reduction box to reduce the transmission of external vibration to the supporting surface, so that the vibration sources on the supporting surface can be reduced to enter the surrounding environment, the interaction between the vibration sources on the supporting surface and the external vibration sources is reduced, the accuracy of the automobile performance test result is improved, and the automobile performance can be better optimized according to the test result; the adjacent side of the air spring is provided with a temperature sensor, the air spring is arranged on the heating element, the heating element can be controlled to be opened through the controller when the temperature sensor detects that the temperature of the air spring is lower, then the air spring is heated to ensure that the air spring can exert the optimal vibration reduction effect, the problem that the vibration reduction effect of the air spring is reduced due to the temperature influence is avoided, and the vibration reduction device can adapt to performance test vibration reduction of automobiles under different environmental temperatures.

In an embodiment of the utility model, a first bolt is arranged at the corner position of the sizing block in a penetrating way and is fixedly connected with the steel plate through the first bolt;

by adopting the technical scheme: the sizing block is connected and fixed with the steel plate through the first bolt, and the sizing block and the steel plate are enabled to be characterized by being capable of being quickly disassembled and assembled, and the sizing block can be installed conveniently and maintained later.

In an embodiment of the utility model, a second bolt is penetrated at the corner position of the steel plate and is fixedly connected with the ground through the second bolt;

by adopting the technical scheme: the steel plate is connected and fixed with the ground through the second bolt, so that the difficulty in mounting the steel plate on the ground is reduced.

In an embodiment of the present utility model, a grouting layer is disposed between the steel plate and the ground, and the grouting layer is formed by injecting and solidifying grouting material;

by adopting the technical scheme: the grouting material is solidified in the gap between the steel plate and the ground to form a grouting layer, so that the connection stability between the steel plate and the ground is improved, and the influence of the separation of the steel plate and the ground on the integral vibration reduction effect is avoided.

In an embodiment of the utility model, the outer edge of the top plate is not contacted with the inner wall of the vibration reduction box;

by adopting the technical scheme: the vibration reduction effect of the whole body is prevented from being influenced by direct conduction vibration between the vibration reduction box and the top plate.

In one embodiment of the utility model, the controller is electrically connected to the heating element.

By adopting the technical scheme: direct control of the heating element may be performed by the controller.

Advantageous effects

In the structure, the trapezoid structure formed by taking the air spring as a core has the characteristics of high stability and vibration reduction effect, and can meet the supporting vibration reduction requirement of an automobile performance test; the bottom of the air spring is provided with the heating element, when the temperature of the air spring is too low, the temperature of the air spring can be raised through the heating element, the problem that the performance of the air spring is affected by the too low temperature is avoided, and the vibration reduction effect of the air spring is ensured, so that the air spring is suitable for test vibration reduction of automobile performance under different environment temperatures; the popularization and application have good economic benefit and social benefit.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a cross-sectional view of the damper box of the present utility model.

In the figure: 1. a vibration reduction box; 2. an air spring; 3. a top plate; 4. a bottom plate; 5. a heating element; 6. a temperature sensor; 7. sizing block; 8. a first bolt; 9. a steel plate; 10. a second bolt; 11. and (5) a grouting layer.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 3. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

As shown in fig. 1-3, the utility model provides an automobile performance test stand, which comprises a vibration reduction box 1, wherein the vibration reduction box 1 is fixed in the middle of the top surface of a sizing block 7, the sizing block 7 is fixed in the middle of the top surface of a steel plate 9, the steel plate 9 is fixed on the ground, the vibration reduction box 1, the sizing block 7 and the steel plate 9 form a trapezoid supporting structure, the overall use cost can be reduced as much as possible, the installation stability of the vibration reduction box 1 is ensured, and a precondition is provided for the vibration reduction box 1 to exert the maximum vibration reduction effect; the inside of the vibration reduction box 1 is provided with the air spring 2, the upper side of the air spring 2 is provided with the top plate 3, the lower side of the air spring 2 is provided with the bottom plate 4, the vibration reduction box 1 is arranged, the air spring 2 is arranged in the vibration reduction box 1 to reduce the transmission of external vibration to the supporting surface, the vibration source on the supporting surface can be reduced to enter the surrounding environment, the mutual influence between the vibration source on the supporting surface and the external vibration source is reduced, the accuracy of the automobile performance test result is improved, and the automobile performance can be better optimized according to the test result; be provided with heating element 5 between bottom plate 4 and air spring 2, temperature sensor 6 is installed to air spring 2's adjacent side, temperature sensor 6 is connected with the controller electricity, air spring 2 adjacent side is provided with temperature sensor 6, and air spring 2 installs on heating element 5, heating element 5 can be when temperature sensor 6 detects air spring 2 temperature lower, open through the controller control, guarantee that air spring 2 can exert optimal damping effect through heating air spring 2 afterwards, avoid appearing because the temperature influence leads to the problem that air spring 2 damping effect reduces, can adapt to the experimental damping of performance of car under the different ambient temperature.

The corner position of the sizing block 7 is penetrated with a first bolt 8 and is fixedly connected with a steel plate 9 through the first bolt 8, the sizing block 7 and the steel plate 9 are fixedly connected through the first bolt 8, and the sizing block 7 and the steel plate 9 are characterized by being capable of being quickly disassembled and assembled, and the sizing block is convenient to install and maintain in the later period.

The corner position of the steel plate 9 is penetrated with a second bolt 10 and is fixedly connected with the ground through the second bolt 10, and the connection and the fixation of the steel plate 9 and the ground are completed through the second bolt 10, so that the difficulty of installing the steel plate 9 on the ground is reduced.

The grouting layer 11 is arranged between the steel plate 9 and the ground, the grouting layer 11 is formed by injecting and solidifying grouting materials, the grouting layer 11 is formed by solidifying the grouting materials in gaps between the steel plate 9 and the ground, the connection stability between the steel plate 9 and the ground is improved, and the problem that the steel plate 9 and the ground are separated to influence the integral vibration reduction effect is avoided.

The outer edge of the top plate 3 is not contacted with the inner wall of the vibration reduction box 1, so that the influence of direct conduction vibration between the vibration reduction box 1 and the top plate 3 on the whole vibration reduction effect is avoided.

This car performance test bench can be used to vibration isolation support when car performance test, during the concrete implementation, will support the iron plate of car and place the top of roof 3, place the iron plate through whole to the car test and support, the vibration that produces in the test process can be absorbed by the air spring 2 of roof 3 below, thereby avoid because the vibration that car performance test produced causes the influence to the external world, avoid external vibration to cause the influence to car performance test simultaneously, when temperature sensor 6 monitors external temperature too low to influence air spring 2 performance, controller control heating element 5 heats air spring 2, thereby guarantee air spring 2's damping effect, and then guarantee the precision of car performance test on roof 3.

In summary, the utility model provides an automobile performance test bed, which is characterized in that a trapezoid structure formed by taking an air spring 2 as a core has high stability and vibration reduction effect, and can adapt to the supporting vibration reduction requirement of an automobile performance test; the bottom of the air spring 2 is provided with the heating element 5, when the temperature of the air spring 2 is too low, the temperature can be raised through the heating element 5, the problem that the performance of the air spring 2 is affected by the too low temperature is avoided, the vibration reduction effect of the air spring 2 is ensured, and therefore the air spring is suitable for test vibration reduction of automobile performance under different environment temperatures; the popularization and application have good economic benefit and social benefit. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The utility model provides an automobile performance test bench, includes damping case (1), its characterized in that: the vibration reduction box (1) is fixed in the middle of the top surface of the sizing block (7), the sizing block (7) is fixed in the middle of the top surface of the steel plate (9), and the steel plate (9) is fixed on the ground;

an air spring (2) is arranged in the vibration reduction box (1), a top plate (3) is arranged on the upper side of the air spring (2), a bottom plate (4) is arranged on the lower side of the air spring (2), and a heating element (5) is arranged between the bottom plate (4) and the air spring (2);

and a temperature sensor (6) is arranged on the adjacent side of the air spring (2), and the temperature sensor (6) is electrically connected with the controller.

2. An automotive performance test bench according to claim 1, wherein: a first bolt (8) is arranged at the corner position of the sizing block (7) in a penetrating mode and is fixedly connected with the steel plate (9) through the first bolt (8).

3. An automotive performance test bench according to claim 1, wherein: and a second bolt (10) is arranged at the corner position of the steel plate (9) in a penetrating way and is fixedly connected with the ground through the second bolt (10).

4. An automotive performance test bench according to claim 1, wherein: a grouting layer (11) is arranged between the steel plate (9) and the ground, and the grouting layer (11) is formed by injecting and solidifying grouting materials.

5. An automotive performance test bench according to claim 1, wherein: the outer edge of the top plate (3) is not contacted with the inner wall of the vibration reduction box (1).

6. An automotive performance test bench according to claim 1, wherein: the controller is electrically connected with the heating element (5).