High-strength wave spring fatigue test tool

Abstract

The high-strength wave spring fatigue test tool comprises a motor control mechanism box, the motor control mechanism box is in a [shape and comprises an upper mounting table and a lower mounting table which are oppositely arranged in an up-down parallel mode, and two up-down amplitude connecting rods are symmetrically arranged between the upper mounting table and the lower mounting table; an upper adjusting threaded sleeve is arranged on the lower portion of the upper mounting table, a lower adjusting threaded sleeve is arranged on the upper portion of the lower mounting table, an amplitude plate moving mounting block is mounted on the up-down amplitude connecting rod, and an upper amplitude plate and a lower amplitude plate which are opposite up and down are mounted in the middle of the amplitude plate moving mounting block. An upper adjusting screw rod, an upper tool fixing seat and an upper tool are arranged above the upper amplitude plate, a lower adjusting screw rod, a lower tool fixing seat and a lower tool are arranged below the lower amplitude plate, the upper adjusting screw rod is sleeved with an upper fixing screw, and the lower adjusting screw rod is sleeved with a lower fixing screw. And the requirements of 2 million times of high-strength and high-fatigue tests can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring fatigue testing equipment, in particular to a high-strength wave spring fatigue testing tool. Background Art

[0002] Only when springs meet all performance requirements can the equipment function properly and avoid failures caused by insufficient spring performance. Existing fatigue testing equipment cannot meet the fatigue testing requirements of wave springs, cannot achieve the expected performance, and cannot accurately determine the fatigue life. To ensure that wave springs can meet their service life, a dedicated test device must be designed based on their characteristics. Utility Model Content

[0003] In order to overcome the above technical problems existing in the prior art, the purpose of the present invention is to provide a high-strength wave spring fatigue test fixture with simple and efficient detection.

[0004] The high-strength wave spring fatigue test fixture provided by the utility model includes a motor control mechanism box, which is in the shape of [, and includes an upper mounting platform and a lower mounting platform arranged parallel to each other in the upper and lower directions, two upper and lower amplitude connecting rods are symmetrically arranged between the upper mounting platform and the lower mounting platform, an upper adjusting threaded sleeve is provided at the lower portion of the upper mounting platform, and a lower adjusting threaded sleeve is provided at the upper portion of the lower mounting platform, an amplitude plate moving mounting block is installed on the upper and lower amplitude connecting rods, and an upper amplitude plate and a lower amplitude plate relative to each other are installed in the middle portion of the amplitude plate moving mounting block, an upper adjusting screw rod, an upper tooling fixing seat and an upper tooling are provided above the upper amplitude plate, and a lower adjusting screw rod, a lower tooling fixing seat and a lower tooling are provided below the lower amplitude plate, an upper fixing screw is sleeved on the upper adjusting screw rod, and a lower fixing screw is sleeved on the lower adjusting screw rod.

[0005] The amplitude plate movable mounting block is horizontally mounted on the upper and lower amplitude connecting rods.

[0006] The upper tooling and the lower tooling are both provided with a lower base and an upper pressing plate. The lower base includes a mounting platform and a mounting column. The mounting column is fixed at the middle of the mounting platform. The mounting platform is provided with an anti-leakage oil groove.

[0007] The mounting platform and the mounting column are both cylindrical, the anti-leakage oil groove is arranged along the outer circumference of the mounting platform, the upper pressure plate is cylindrical, and a through hole is provided inside. The diameter of the through hole is larger than the diameter of the mounting column, and a refueling port is provided on the side wall of the upper pressure plate.

[0008] The upper adjusting screw rod is installed in the upper adjusting threaded sleeve, the bottom of the upper adjusting screw rod is fixedly connected to the upper tooling fixing seat, the upper tooling fixing seat is installed with the upper tooling, the lower adjusting screw rod is installed in the lower adjusting threaded sleeve, the top of the lower adjusting screw rod is fixedly connected to the lower tooling fixing seat, the lower tooling fixing seat is installed with the lower tooling, and the upper adjusting screw rod and the lower adjusting screw rod are located on the same vertical line.

[0009] The high-strength wave spring fatigue test fixture provided by the utility model has the beneficial effects of simple and reasonable structures of the upper fixture and the lower fixture, and convenient disassembly and assembly; the gearbox mounting structure and working stroke are simplified into a test fixture for fatigue testing, and combined with the upper and lower amplitude and stroke tests of the force value machine control system, it can meet the customer's high-strength and high-fatigue test requirements of 2 million times. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0011] Figure 2 Schematic diagram of the lower base and upper pressure plate structure;

[0012] Note in the figure:

[0013] 1. Upper mounting platform; 2. Upper adjusting threaded sleeve; 3. Upper adjusting screw rod; 4. Upper fixing screw; 5. Wave spring; 6. Amplitude plate movable mounting block; 7. Lower fixing screw; 8. Lower adjusting screw rod; 9. Lower adjusting threaded sleeve; 10. Motor control mechanism box; 11. Lower tooling fixing seat; 12. Upper and lower amplitude connecting rods; 13. Upper tooling fixing seat; 14. Force value machine control system; 15. Upper pressure plate; 16. Lower base; 17. Anti-leakage oil tank; 18. Oil filler port; 19. Lower mounting platform. DETAILED DESCRIPTION

[0014] The following describes in detail an embodiment of the high-strength wave spring fatigue test fixture provided by the present invention with reference to the accompanying drawings.

[0015] Example

[0016] Reference Figure 1-Figure 2The high-strength wave spring fatigue test fixture of this embodiment includes a motor control mechanism box 10. The motor control mechanism box 10 is in the shape of [, and includes an upper mounting platform 1 and a lower mounting platform 19 arranged parallel to each other in the upper and lower directions. Two upper and lower amplitude connecting rods 12 are symmetrically arranged between the upper mounting platform 1 and the lower mounting platform 19. An upper adjusting threaded sleeve 2 is provided at the lower part of the upper mounting platform 1, and a lower adjusting threaded sleeve 9 is provided at the upper part of the lower mounting platform 19. An amplitude plate moving mounting block 6 is installed on the upper and lower amplitude connecting rods 12. An upper amplitude plate and a lower amplitude plate opposite to each other are installed in the middle of the amplitude plate moving mounting block 6. An upper adjusting screw rod 3, an upper tooling fixing seat 13 and an upper tooling are provided above the upper amplitude plate. A lower adjusting screw rod 8, a lower tooling fixing seat 11 and a lower tooling are provided below the lower amplitude plate. An upper fixing screw 4 is sleeved on the upper adjusting screw rod 3, and a lower fixing screw 7 is sleeved on the lower adjusting screw rod 8.

[0017] The amplitude plate movable mounting block 6 is horizontally mounted on the upper and lower amplitude connecting rods 12 .

[0018] The upper fixture and the lower fixture are both provided with a lower base 16 and an upper pressing plate 15 . The lower base 16 includes a mounting platform and a mounting column. The mounting column is fixed at the middle of the mounting platform. An anti-leakage oil groove 17 is provided on the mounting platform.

[0019] The mounting platform and the mounting column are both cylindrical, and the anti-leakage oil groove 17 is set along the outer circumference of the mounting platform. The upper pressure plate 15 is cylindrical and has a through hole inside. The diameter of the through hole is larger than the diameter of the mounting column. The side wall of the upper pressure plate is provided with a refueling port 18.

[0020] The upper adjusting screw rod 3 is installed in the upper adjusting threaded sleeve 2, the bottom of the upper adjusting screw rod 3 is fixedly connected to the upper tooling fixing seat 13, the upper tooling fixing seat 13 is installed with the upper tooling, the lower adjusting screw rod 8 is installed in the lower adjusting threaded sleeve 9, the top of the lower adjusting screw rod 3 is fixedly connected to the lower tooling fixing seat 11, the lower tooling fixing seat 11 is installed with the lower tooling, the upper adjusting screw rod 3 and the lower adjusting screw rod 8 are located on the same vertical line.

[0021] During operation, the wave spring 5 that needs to undergo fatigue test is installed on the lower base of the tooling, and the wave spring is sleeved on the mounting column. The wave spring is limited by the mounting column and the anti-leakage oil groove. Then the upper pressure plate is sleeved on the mounting column and pressed on the wave spring. The equipment operator adjusts the upper and lower amplitude plates to the center point of the upper and lower vibrations, installs the assembled test upper tooling and lower tooling to the upper tooling fixed seat and the lower tooling fixed seat, and locks them with the fixing screws. Combined with the stroke of the upper and lower amplitude plates, the distance of the screw rods is adjusted respectively according to the gearbox used for the experimental wave spring. First, debug the lower fixture test displacement stroke. When the upper and lower amplitude plates are close to the zero position, adjust the lower adjustment screw rod, and then adjust the upper fixture test displacement stroke. The debugging method is the same as the lower fixture test displacement stroke. After adjusting the amplitude stroke, set the amplitude frequency on the operation panel of the force value machine control system 14. The set amplitude frequency is higher than the actual frequency of the gearbox used for the experimental wave spring. The number of fatigue tests is higher than the factory setting requirements of the gearbox, which fully meets the use stroke needs. Before starting the test, add lubricating oil from the refueling port, and then start the equipment to start the test.

Claims

1. A high-strength wave spring fatigue test fixture, characterized by: The camshaft is mounted on a link cam of the control panel and the control panel, and the camshaft is mounted on a link cam of the control panel, the camshaft being mounted on a link cam of the control panel and the control panel.

2. The high-strength wave spring fatigue test fixture according to claim 1, characterized in that: The amplitude plate movable mounting block is horizontally mounted on the upper and lower amplitude connecting rods.

3. The high-strength wave spring fatigue test fixture according to claim 1, characterized in that: The upper tooling and the lower tooling are both provided with a lower base and an upper pressing plate. The lower base includes a mounting platform and a mounting column. The mounting column is fixed at the middle of the mounting platform. The mounting platform is provided with an anti-leakage oil groove.

4. The high-strength wave spring fatigue test fixture according to claim 3, characterized in that: The mounting platform and the mounting column are both cylindrical, the anti-leakage oil groove is arranged along the outer circumference of the mounting platform, the upper pressure plate is cylindrical, and a through hole is provided inside. The diameter of the through hole is larger than the diameter of the mounting column, and a refueling port is provided on the side wall of the upper pressure plate.

5. The high-strength wave spring fatigue test fixture according to claim 1, characterized in that: The upper adjusting screw rod is installed in the upper adjusting threaded sleeve, the bottom of the upper adjusting screw rod is fixedly connected to the upper tooling fixing seat, the upper tooling fixing seat is installed with the upper tooling, the lower adjusting screw rod is installed in the lower adjusting threaded sleeve, the top of the lower adjusting screw rod is fixedly connected to the lower tooling fixing seat, the lower tooling fixing seat is installed with the lower tooling, and the upper adjusting screw rod and the lower adjusting screw rod are located on the same vertical line.

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