A vehicle air spring testing device

Abstract

The utility model discloses a kind of air spring test devices for vehicle, including base and support, the front end of base is provided with T type sliding slot, T type sliding block is inserted in T type sliding slot and is provided, the both sides between T type sliding block and base are fixedly connected, lower flange support column is fixedly connected in T type sliding block middle part, the upper end of support is provided with vertical sliding guide shaft, the lower end of guide shaft is connected with the upper flange support column coaxial with lower flange support column by quick insertion, test station is arranged between lower flange support column and upper flange support column, the upper end of guide shaft is connected with pressure sensor by first flange, door type frame is installed on the upper end of support, loading oil cylinder is installed on door type frame, the shaft end of loading oil cylinder is connected between the upper end shaft of pressure sensor by quick insertion. The air spring test device for vehicle is convenient to disassemble and assemble, can be adjusted adaptively to different specifications of air spring for vehicle, replace different lower flange support column and upper flange support column.

Description

Technical Field

[0001] This utility model relates to air springs, specifically to a testing device for automotive air springs. Background Technology

[0002] The air spring pressure test is a core test to verify its stiffness, strength, sealing performance and design life. It is used to test the air spring's pressure-bearing performance under static or dynamic conditions.

[0003] Patent CN213956760U discloses an integrated air spring volume and burst test bench, including a test bench, the main body of which is a four-column hydraulic press. The air spring is fixed to the test bench through a first mounting plate and a second mounting plate. A displacement sensor is provided on the test bench, and a diameter measuring instrument is provided on the side of the test bench. The water supply system includes a water tank, a high-pressure pump, a first solenoid valve, a second solenoid valve, and a pressure sensor. A gravity sensor is provided at the bottom of the water tank. The water tank is a flat rectangle, and its upper surface forms a weighing platform.

[0004] The first mounting plate, which serves as the lower support in this air spring volume and burst test bench, is bolted to the workbench. When testing different models of air springs and needing to replace the first mounting plate, disassembling the bolts is cumbersome and affects work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a vehicle air spring testing device that is easy to assemble and disassemble, and can be adapted to different specifications of vehicle air springs by replacing different lower flange support columns and upper flange support columns.

[0006] To achieve the above objectives, this utility model provides a vehicle air spring testing device, which includes a base and a bracket. A T-shaped groove is provided at the front end of the base, and a T-shaped slider is inserted into the groove. The two sides of the T-shaped slider are pinned to the base. A lower flange support column is fixedly connected to the middle of the T-shaped slider. A vertically sliding guide shaft is provided at the upper end of the bracket. The lower end of the guide shaft is connected to an upper flange support column coaxial with the lower flange support column via a quick-connect fitting. A testing station is provided between the lower flange support column and the upper flange support column. A pressure sensor is connected to the upper end of the guide shaft via a first flange. A gantry frame is mounted on the upper end of the bracket, and a loading cylinder is mounted on the gantry frame. The shaft end of the loading cylinder is connected to the upper shaft of the pressure sensor via a quick-connect fitting.

[0007] Preferably, pin holes are provided on both sides of the T-shaped slider, and indexing pins corresponding to the pin holes are installed on both sides of the T-shaped slide groove on the base.

[0008] Preferably, the upper end of the upper flange support column is provided with a first side-insertion T-slot; the lower end of the guide shaft is fixedly connected to a first T-shaped column corresponding to the first side-insertion T-slot.

[0009] Preferably, the upper end of the pressure sensor is provided with a second side-insertion T-slot; the shaft end of the loading cylinder is fixedly connected with a second T-shaped post corresponding to the second side-insertion T-slot.

[0010] Preferably, the bracket includes a central plate located at the middle of the rear end and side plates located on both sides of the front end, with a top plate fixedly connected to the upper end of the central plate and the two side plates.

[0011] Preferably, the base has multiple recesses on both sides, and the recesses have mounting holes.

[0012] Preferably, a handle is fixedly connected to the front end of the T-shaped slider.

[0013] Preferably, the upper surfaces of both sides of the T-shaped slider are provided with a first alignment line, and the upper surfaces of both sides of the T-shaped groove are provided with a second alignment line corresponding to the first alignment line.

[0014] According to the above technical solution, this utility model provides a vehicle air spring testing device, which includes a base and a bracket. The front end of the base is provided with a T-shaped groove, and a T-shaped slider is inserted into the T-shaped groove. The two sides of the T-shaped slider are pin-connected to the base. A lower flange support column is fixedly connected to the middle of the T-shaped slider. A vertically sliding guide shaft is provided at the upper end of the bracket. The lower end of the guide shaft is connected to an upper flange support column coaxial with the lower flange support column via a quick-connect fitting. A test station is provided between the lower flange support column and the upper flange support column. A pressure sensor is connected to the upper end of the guide shaft via a first flange. A gantry frame is installed at the upper end of the bracket, and a loading cylinder is installed on the gantry frame. The shaft end of the loading cylinder is connected to the upper shaft of the pressure sensor via a quick-connect fitting.

[0015] The usage and beneficial effects of this vehicle air spring testing device are as follows: When using this vehicle air spring testing device for testing, the vehicle air spring is placed in the test position between the lower flange support column and the upper flange support column. It is connected to the lower flange support column through a second flange and to the upper flange support column through a third flange. Then, the loading cylinder is started to load the air spring, and the pressure value is recorded in real time by the pressure sensor. The displacement and pressure value are used to determine whether the air spring is qualified.

[0016] In this vehicle air spring testing device, the T-shaped slider and the lower flange support column are integrated and fixed in the T-shaped groove by sliding insertion, allowing for quick replacement. The lower flange support column with different flange face specifications can be replaced according to different air springs. Correspondingly, the upper flange support column and the guide shaft are connected by a quick-connect fitting, which also allows for quick replacement.

[0017] This vehicle air spring testing device is easy to assemble and disassemble, and can be adapted to different specifications of vehicle air springs, allowing for the replacement of different lower flange support columns and upper flange support columns.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is an overall structural diagram of a preferred embodiment of an automotive air spring testing device;

[0021] Figure 2 This is a side view of a preferred embodiment of an automotive air spring testing device;

[0022] Figure 3 This is a front view structural diagram of a preferred embodiment of an automotive air spring testing device;

[0023] Figure 4 yes Figure 1 A magnified schematic diagram of a portion of region A in the middle;

[0024] Figure 5 This is a schematic diagram of the connection between the T-shaped slider and the lower flange support column.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Base; 2-Sink; 3-Mounting hole; 4-T-slot; 5-Center plate; 6-Top plate; 7-Gantry frame; 8-Loading cylinder; 9-Side plate; 10-Air spring; 11-First T-shaped column; 12-First side insertion T-slot; 13-Pressure sensor; 14-First flange; 15-Guide shaft; 16-Second T-shaped column; 17-Second side insertion T-slot; 18-Upper flange support column; 19-Third flange; 20-Pin hole; 21-Second flange; 22-Lower flange support column; 23-T-slider; 24-Indexing pin; 25-Handle; 26-First alignment line; 27-Second alignment line. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0029] See Figure 1-5 The vehicle air spring testing device shown includes a base 1 and a bracket. The front end of the base 1 is provided with a T-shaped groove 4, and a T-shaped slider 23 is inserted into the T-shaped groove 4. The two sides of the T-shaped slider 23 are pin-connected to the base 1. A lower flange support column 22 is fixedly connected to the middle of the T-shaped slider 23. A vertically sliding guide shaft 15 is provided at the upper end of the bracket. The lower end of the guide shaft 15 is connected to an upper flange support column 18 coaxial with the lower flange support column 22 via a quick-connect fitting. A test station is provided between the lower flange support column 22 and the upper flange support column 18. A pressure sensor 13 is connected to the upper end of the guide shaft 15 via a first flange 14. A gantry frame 7 is installed at the upper end of the bracket. A loading cylinder 8 is installed on the gantry frame 7. The shaft end of the loading cylinder 8 is connected to the upper shaft of the pressure sensor 13 via a quick-connect fitting.

[0030] Through the implementation of the above technical solution, the T-shaped slider 23 and the lower flange support column 22 in the vehicle air spring testing device are integrally connected and fixed in the T-shaped groove 4 by sliding insertion, allowing for quick replacement. Different specifications of the lower flange support column 22 can be replaced according to different air springs 10. Correspondingly, the upper flange support column 18 and the guide shaft 15 are connected by a quick-connect fitting, also allowing for quick replacement. This vehicle air spring testing device is easy to assemble and disassemble, and can be adapted to different specifications of vehicle air springs, allowing for the replacement of different lower flange support columns 22 and upper flange support columns 18.

[0031] When assembling the vehicle air spring testing device, first install the T-shaped slider 23 with the lower flange support column 22 into place, then install the loading cylinder 8 into place, then insert the guide shaft 15 into the corresponding light hole on the bracket, install the upper flange support column 18 at the lower end of the guide shaft 15, then install the pressure sensor 13 at the shaft end of the loading cylinder 8, and finally connect the lower end of the pressure sensor 13 to the upper end of the guide shaft 15 through the first flange 14. At this time, the height of the test station can be adjusted by the loading cylinder 8. After the height is adjusted to the correct position, place the air spring 10 to be tested, and install it at both ends through the corresponding second flange 21 and third flange 19. When the air spring 10 does not have flange plates at both ends, it can also be installed without using the second flange 21 and third flange 19. A positioning groove can be set on the upper end face of the lower flange support column 22 and the lower end face of the upper flange support column 18, and the two ends of the air spring 10 can be embedded into the corresponding positioning grooves for limitation.

[0032] In this embodiment, pin holes 20 are provided on both sides of the T-shaped slider 23, and indexing pins 24 corresponding to the pin holes 20 are installed on both sides of the T-shaped slide groove 4 on the base 1. With this arrangement, after the T-shaped slider 23 is inserted into place, the pin holes 20 and the indexing pins 24 are coaxial, and the indexing pins 24 are fixed in the pin holes 20 to limit the lateral position of the T-shaped slider 23 and prevent it from sliding out.

[0033] In this embodiment, the upper end of the upper flange support column 18 is provided with a first side-insertion T-slot 12; the lower end of the guide shaft 15 is fixedly connected to a first T-shaped column 11 corresponding to the first side-insertion T-slot 12. With this arrangement, during connection, after aligning the first T-shaped column 11 with the first side-insertion T-slot 12, a lateral insertion connection can be made, thereby achieving quick connection between the guide shaft 15 and the upper flange support column 18.

[0034] In this embodiment, the upper end of the pressure sensor 13 is provided with a second side-insertion T-slot 17; the shaft end of the loading cylinder 8 is fixedly connected with a second T-shaped post 16 corresponding to the second side-insertion T-slot 17. With this arrangement, during connection, after aligning the second T-shaped post 16 with the second side-insertion T-slot 17, a lateral insertion connection can be made, thereby achieving quick connection between the pressure sensor 13 and the loading cylinder 8.

[0035] In this embodiment, to further provide a support structure, the support includes a central plate 5 located at the middle of the rear end and side plates 9 located on both sides of the front end. A top plate 6 is fixedly connected to the upper ends of the central plate 5 and the two side plates 9. A portal frame 7 is mounted on the top plate 6.

[0036] In this embodiment, multiple recesses 2 are provided on both sides of the base 1, and mounting holes 3 are provided in the recesses 2. With this arrangement, bolts are installed in the mounting holes 3 to fix the base 1 to the workstation.

[0037] In this embodiment, a handle 25 is fixedly connected to the front end of the T-shaped slider 23. This arrangement facilitates the pulling out of the T-shaped slider 23.

[0038] In this embodiment, the upper surfaces of both sides of the T-shaped slider 23 are provided with first alignment lines 26, and the upper surfaces of both sides of the T-shaped groove 4 are provided with second alignment lines 27 corresponding to the first alignment lines 26. When assembling the T-shaped slider 23, the first alignment lines 26 and the second alignment lines 27 are used to assist in aligning the pin hole 20 and the indexing pin 24.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0040] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0041] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A testing device for automotive air springs, characterized in that, The system includes a base (1) and a bracket. The front end of the base (1) is provided with a T-shaped groove (4). A T-shaped slider (23) is inserted into the T-shaped groove (4). The two sides of the T-shaped slider (23) are pin-connected to the base (1). A lower flange support column (22) is fixedly connected to the middle of the T-shaped slider (23). The upper end of the bracket is provided with a vertically sliding guide shaft (15). The lower end of the guide shaft (15) is connected to the lower flange support column via a quick-connect fitting. (22) A coaxial upper flange support column (18) is provided between the lower flange support column (22) and the upper flange support column (18). A test station is provided between the upper flange support column (22) and the upper flange support column (18). The upper end of the guide shaft (15) is connected to a pressure sensor (13) through a first flange (14). A gantry frame (7) is installed on the upper end of the bracket. A loading cylinder (8) is installed on the gantry frame (7). The shaft end of the loading cylinder (8) is connected to the upper shaft of the pressure sensor (13) through a quick-connect fitting.

2. The vehicle air spring testing device according to claim 1, characterized in that, The T-shaped slider (23) has pin holes (20) on both sides, and the base (1) is equipped with indexing pins (24) corresponding to the pin holes (20) on both sides of the T-shaped slide groove (4).

3. The vehicle air spring testing device according to claim 1, characterized in that, The upper end of the upper flange support column (18) is provided with a first side insertion T-slot (12); the lower end of the guide shaft (15) is fixedly connected with a first T-shaped column (11) corresponding to the first side insertion T-slot (12).

4. The vehicle air spring testing device according to claim 1, characterized in that, The pressure sensor (13) is provided with a second side-insertion T-slot (17) at its upper end; the loading cylinder (8) is fixedly connected to a second T-shaped post (16) corresponding to the second side-insertion T-slot (17).

5. The vehicle air spring testing device according to claim 1, characterized in that, The bracket includes a central plate (5) located at the middle of the rear end and side plates (9) located on both sides of the front end. The central plate (5) and the two side plates (9) are fixedly connected to the upper ends of a top plate (6).

6. The vehicle air spring testing device according to claim 1, characterized in that, The base (1) has multiple recesses (2) on both sides, and mounting holes (3) are provided in the recesses (2).

7. The vehicle air spring testing device according to claim 1, characterized in that, A handle (25) is fixed to the front end of the T-shaped slider (23).

8. The vehicle air spring testing device according to claim 1, characterized in that, The upper surfaces of both sides of the T-shaped slider (23) are provided with a first alignment line (26), and the upper surfaces of both sides of the T-shaped groove (4) are provided with a second alignment line (27) corresponding to the first alignment line (26).

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