Air spring fatigue testing machine

Abstract

The utility model relates to the technical field of air springs, in particular to an air spring fatigue testing machine which comprises a bottom plate, telescopic rods are symmetrically and fixedly connected to the top of the bottom plate, a lower mounting plate is fixedly connected to the tops of the telescopic rods, a fixing plate is fixedly connected to the top of the bottom plate, and a second motor is fixedly connected to the side wall of the upper end of the fixing plate. A rotating disc is fixedly connected to the output end of the second motor, a connecting sleeve is rotatably connected to the eccentric position of the side wall of the rotating disc, an upper mounting disc is rotatably connected to the outer side wall of the lower end of the connecting sleeve, a first rectangular block is fixedly connected to the top of the bottom plate, and a first sliding groove is formed in the top of the first rectangular block; through the arranged power assembly, the power assembly drives the clutch assembly to work, the clutch assembly slides on the inner side wall of the first sliding groove, the rotating assembly works while the clutch assembly works, and therefore the lower mounting plate moves through the rotating assembly; and the air spring is detected through the lower mounting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of air springs, in particular to an air spring fatigue testing machine. Background Art

[0002] The air spring is a sealed container filled with compressed air, which uses the compressibility of gas to achieve its elastic effect.

[0003] For example, the patent with announcement number CN218156749U discloses an air spring fatigue testing machine, including a fixed plate, the bottom end of the front side of the fixed plate is fixedly connected to the rear side of the first connecting frame, the front side of the first connecting frame is fixedly connected to the rear side of the second connecting frame, the middle part of the upper front side of the second connecting frame is fixedly connected to the bottom end of the slide slot seat, the inner rear side of the slide slot seat is slidably connected with a sliding frame, the middle part of the upper end of the slide slot seat is fixedly connected to the bottom end of the first motor, and the rotating shaft of the first motor passes through the middle part of the upper end of the slide slot seat and is fixedly connected to one end of the threaded rod.

[0004] Through the above arrangement, in the utility model described in the prior art, the rear end of the lifting frame performs reciprocating motion, so that the slide rod moves up and down in the slide sleeve, and the lower part of the air spring is fatigue tested. The connecting rod sleeve drives the second connecting plate to move up and down, and the upper part of the air spring is fatigue tested, which is convenient for two-way testing. However, the air spring fatigue testing machine of the prior art solution has the following defects during operation:

[0005] In the above device, when fatigue detection is performed on the lower part of the air spring, the second motor is started to drive the first rotating shaft to rotate in the first fixed seat, so that the rear end of the lifting frame reciprocates, and the first connecting plate is pushed to reciprocate up and down, and the sliding rod moves up and down in the sliding sleeve, so that fatigue detection is performed on the lower part of the air spring. However, the outer wall of the rotating shaft is fixedly connected to the lifting frame, so the lifting frame is driven to rotate during the rotation of the rotating shaft, which causes the device to fail to be implemented. Utility Model Content

[0006] The utility model aims to provide an air spring fatigue testing machine, which is mainly used to solve the technical problem of principle error in detecting the lower part of the air spring in the prior art.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] An air spring fatigue testing machine comprises a base plate, a telescopic rod is symmetrically fixedly connected to the top of the base plate, a lower mounting plate is fixedly connected to the top of the telescopic rod, a fixed plate is fixedly connected to the top of the base plate, a side wall of the fixed plate located at the upper end is fixedly connected to a second motor, a rotating disk is fixedly connected to the output end of the second motor, a connecting sleeve is rotatably connected to the eccentric part of the side wall of the rotating disk, an upper mounting disk is rotatably connected to the outer side wall of the lower end of the connecting sleeve, a first rectangular block is fixedly connected to the top of the base plate, a first slide groove is provided on the top of the first rectangular block, a clutch assembly is rotatably connected to the inner side wall of the first slide groove, a second rectangular block is fixedly connected to the bottom of the lower mounting plate, a second slide groove is provided on the lower end side wall of the second rectangular block, a second slide groove is symmetrically slidably connected to the inner side wall of the second slide groove, a second slider is fixedly connected to the bottom of the second slider with a rotating assembly, and a power assembly is fixedly connected to the top of the base plate.

[0009] The working principle and beneficial effects of the utility model:

[0010] 1. Working principle: The structure of the air spring fatigue testing machine in the utility model is similar to that of the existing air spring fatigue testing machine. For example, the patent with announcement number CN218156749U discloses an air spring fatigue testing machine. The main improvement of the utility model is that when the device detects the lower part of the air spring, it only needs to work forward and reversely through the power component, and the power component drives the clutch component to slide on the inner wall of the first slide groove. When the clutch component works, the rotating component works, so that the lower mounting plate is moved by the rotating component, and then the air spring is detected through the lower mounting plate.

[0011] 2. Beneficial effects:

[0012] The prior art sets a rear end of the lifting frame to perform reciprocating motion, causing the slide rod to move up and down in the slide sleeve, thereby performing fatigue detection on the lower part of the air spring. However, the prior art sets a power component to drive the clutch component to work, causing the clutch component to slide on the inner wall of the first slide groove, and the rotating component works while the clutch component is working, thereby moving the lower mounting plate through the rotating component, and then detecting the air spring through the lower mounting plate.

[0013] Preferably: the clutch assembly includes a bidirectional screw rod rotatably connected to the inner wall of the first slide groove, the outer wall of the bidirectional screw rod is symmetrically threaded with a first slider, and the first sliders are all slidably connected in the first slide groove, and the top of the first slider is fixedly connected to the second mounting seat. When it is necessary to inspect the lower part of the air spring, the bidirectional screw rod is rotated to make the bidirectional screw rod and the inner wall of the first slide groove rotate. During this process, the two first sliders approach or move away from each other along the outer wall of the bidirectional screw rod. When the two first sliders approach each other on the inner wall of the first slide groove, the rotating assembly is driven to work, and finally the lower mounting plate is raised and lowered by the rotating assembly, thereby inspecting the lower part of the air spring.

[0014] Preferably: the rotating assembly includes a first mounting seat fixedly connected to the bottom of the second slider, the inner side wall of the first mounting seat is rotatably connected with a connecting rod, the two connecting rods are staggered and rotatably connected, the lower ends of the two connecting rods are rotatably connected to the inner side wall of the second mounting seat, when the two first sliders approach each other in the first slide groove, they respectively drive the two second mounting seats to approach each other, during this process, the second mounting seat and the connecting rod rotate, and the inclination angle of the two connecting rods gradually increases, so that the two second sliders are brought closer to each other on the inner side walls of the second slide groove through the first mounting seat, and then the lower mounting plate is pushed by the second slider, and the lower part of the air spring is detected through the lower mounting plate.

[0015] Preferably: the power assembly includes a connecting plate fixedly connected to the top of the base plate, a mounting hole is opened on the side wall of the connecting plate, and a bidirectional screw rod is rotatably connected to the inner wall of the mounting hole, a first motor is fixedly connected to the side wall of the connecting plate, and an output end of the first motor is fixedly connected to one end of the bidirectional screw rod close to the mounting hole. When the bidirectional screw rod needs to be rotated, the first motor is started and the bidirectional screw rod is driven to rotate by the first motor, thereby achieving the purpose of convenience.

[0016] Preferably, a rectangular groove is provided at the staggered rotation position between the two connecting rods to facilitate the rotation between the two connecting rods.

[0017] Preferably, the rising height of the lower mounting plate is much smaller than the moving stroke of the telescopic rod, so as to prevent the phenomenon that the lower mounting plate needs to rise when the telescopic rod is pulled to the maximum state.

[0018] Preferably, the first motor is a forward and reverse bidirectional motor. After the first motor rotates in the forward direction for a period of time, it will rotate in the reverse direction, thereby reciprocatingly inspecting the lower end of the air spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2It is a structural schematic diagram of the first mounting seat, the connecting rod and the second mounting seat of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second rectangular block, the second slide groove and the second sliding block of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the motor, mounting hole and bidirectional lead screw of the utility model.

[0023] The figure marks in the drawings of the specification include: 1. rotating disk; 2. connecting sleeve; 3. upper mounting disk; 4. first motor; 5. bottom plate; 6. second motor; 7. fixing plate; 8. lower mounting plate; 9. telescopic rod; 10. first rectangular block; 11. connecting plate; 12. second rectangular block; 13. first mounting seat; 14. connecting rod; 15. first slide groove; 16. bidirectional screw rod; 17. second mounting seat; 18. first slider; 19. second slide groove; 20. second slider; 21. mounting hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4As shown, it includes a bottom plate 5, a telescopic rod 9 is symmetrically fixedly connected to the top of the bottom plate 5, a lower mounting plate 8 is fixedly connected to the top of the telescopic rod 9, a fixed plate 7 is fixedly connected to the top of the bottom plate 5, a second motor 6 is fixedly connected to the side wall of the fixed plate 7 located at the upper end, a rotating disk 1 is fixedly connected to the output end of the second motor 6, a connecting sleeve 2 is rotatably connected to the eccentric part of the side wall of the rotating disk 1, an upper mounting disk 3 is rotatably connected to the outer side wall of the lower end of the connecting sleeve 2, a first rectangular block 10 is fixedly connected to the top of the bottom plate 5, a first slide groove 15 is opened on the top of the first rectangular block 10, and a clutch assembly is rotatably connected to the inner side wall of the first slide groove 15, and the clutch assembly includes a bidirectional screw rod 16 rotatably connected to the inner side wall of the first slide groove 15 The outer wall of the bidirectional screw rod 16 is symmetrically threadedly connected with a first slider 18, and the first sliders 18 are all slidably connected in the first slide groove 15. The top of the first slider 18 is fixedly connected with a second mounting seat 17. When the bidirectional screw rod 16 and the inner wall of the first slide groove 15 rotate, the two first sliders 18 approach or move away from each other along the outer wall of the bidirectional screw rod 16 during this process. When the two first sliders 18 approach each other on the inner wall of the first slide groove 15, they respectively drive the two second mounting seats 17 to approach each other. The bottom of the lower mounting plate 8 is fixedly connected with a second rectangular block 12, and a second slide groove 19 is provided on the lower end side wall of the second rectangular block 12. The inner wall of the second slide groove 19 is symmetrically slidably connected with the second The second slider 20 has a rotating assembly fixedly connected to the bottom of the second slider 20, and the rotating assembly includes a first mounting seat 13 fixedly connected to the bottom of the second slider 20, and the inner side wall of the first mounting seat 13 is rotatably connected to a connecting rod 14, and the two connecting rods 14 are staggered and rotatably connected, and the lower ends of the two connecting rods 14 are rotatably connected to the pinching side wall of the second mounting seat 17. When the two second mounting seats 17 are close to each other, the second mounting seat 17 and the connecting rod 14 rotate, and the inclination angle of the two connecting rods 14 gradually increases, so that the two second sliders 20 are close to each other on the inner side walls of the second slide groove 19 through the first mounting seat 13, and then the second slider 20 pushes the lower mounting seat Plate 8, so that the lower mounting plate 8 moves upward, and the lower part of the air spring is inspected through the lower mounting plate 8. The top of the base plate 5 is fixedly connected with a power assembly, and the power assembly includes a connecting plate 11 fixedly connected to the top of the base plate 5, and the side wall of the connecting plate 11 is provided with a mounting hole 21, and the bidirectional screw rod 16 is rotatably connected to the inner side wall of the mounting hole 21, and the side wall of the connecting plate 11 is fixedly connected with a first motor 4, and the output end of the first motor 4 is fixedly connected to one end of the bidirectional screw rod 16 close to the mounting hole 21. When the lower end of the air spring needs to be inspected, the first motor 4 is started first, and the first motor 4 is used to drive the bidirectional screw rod 16 to rotate on the inner side wall of the mounting hole 21, so as to achieve the purpose of convenience.

[0026] From the above, it can be seen that the specific implementation of the utility model is as follows:

[0027] When the device detects the lower end of the air spring, it first starts the first motor 4 and uses the first motor 4 to drive the bidirectional lead screw 16 to rotate on the inner wall of the mounting hole 21, so that the bidirectional lead screw 16 and the inner wall of the first slide groove 15 rotate. In this process, the two first sliders 18 approach or move away from each other along the outer wall of the bidirectional lead screw 16. When the two first sliders 18 approach each other on the inner wall of the first slide groove 15, they respectively drive the two second mounting seats 17 to approach each other. In this process, the second mounting seat 17 and the connecting rod 14 rotate, and the inclination angle of the two connecting rods 14 gradually increases, so that the two second sliders 20 approach each other on the inner wall of the second slide groove 19 through the first mounting seat 13, and then the lower mounting plate 8 is pushed by the second slider 20 to move the lower mounting plate 8 upward, and the lower part of the air spring is detected through the lower mounting plate 8.

[0028] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An air spring fatigue testing machine, comprising a bottom plate (5), a telescopic rod (9) symmetrically fixedly connected to the top of the bottom plate (5), a lower mounting plate (8) fixedly connected to the top of the telescopic rod (9), a fixed plate (7) fixedly connected to the top of the bottom plate (5), a second motor (6) fixedly connected to the side wall of the fixed plate (7) at the upper end, a rotating disk (1) fixedly connected to the output end of the second motor (6), a connecting sleeve (2) rotatably connected to the eccentric portion of the side wall of the rotating disk (1), an upper mounting disk (3) rotatably connected to the lower outer side wall of the connecting sleeve (2), characterized in that: A first rectangular block (10) is fixedly connected to the top of the bottom plate (5), a first slide groove (15) is provided on the top of the first rectangular block (10), and a clutch assembly is rotatably connected to the inner side wall of the first slide groove (15), a second rectangular block (12) is fixedly connected to the bottom of the lower mounting plate (8), a second slide groove (19) is provided on the lower end side wall of the second rectangular block (12), a second slider (20) is symmetrically slidably connected to the inner side wall of the second slide groove (19), a rotating assembly is fixedly connected to the bottom of the second slider (20), and a power assembly is fixedly connected to the top of the bottom plate (5).

2. The air spring fatigue testing machine according to claim 1, characterized in that: The clutch assembly comprises a bidirectional screw rod (16) rotatably connected to the inner wall of the first slide groove (15); the outer wall of the bidirectional screw rod (16) is symmetrically threadedly connected to a first slider (18); the first slider (18) is slidably connected in the first slide groove (15); and the top of the first slider (18) is fixedly connected to a second mounting seat (17).

3. The air spring fatigue testing machine according to claim 1, characterized in that: The rotating assembly comprises a first mounting seat (13) fixedly connected to the bottom of the second sliding block (20); the inner side wall of the first mounting seat (13) is rotatably connected to a connecting rod (14); the two connecting rods (14) are rotatably connected to each other in an alternating manner; and the lower ends of the two connecting rods (14) are rotatably connected to the inner side wall of the second mounting seat (17).

4. The air spring fatigue testing machine according to claim 1, characterized in that: The power assembly comprises a connecting plate (11) fixedly connected to the top of the base plate (5); a mounting hole (21) is provided on a side wall of the connecting plate (11); a bidirectional screw rod (16) is rotatably connected to the inner side wall of the mounting hole (21); a first motor (4) is fixedly connected to the side wall of the connecting plate (11); and an output end of the first motor (4) is fixedly connected to an end of the bidirectional screw rod (16) close to the mounting hole (21).

5. The air spring fatigue testing machine according to claim 1, characterized in that: A rectangular groove is provided at the staggered rotation position between the two connecting rods (14).

6. The air spring fatigue testing machine according to claim 1, characterized in that: The rising height of the lower mounting plate (8) is much smaller than the moving stroke of the telescopic rod.

7. The air spring fatigue testing machine according to claim 4, characterized in that: The first motor (4) is a forward and reverse bidirectional motor.

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