Train brake cylinder fatigue testing machine

Abstract

The utility model relates to the field of fatigue testing machines, and discloses a train brake cylinder fatigue testing machine, which comprises a testing machine main body and a clamp, the clamp is arranged on the top surface of the testing machine main body, and the clamp comprises a clamp seat arranged on the top surface of the testing machine main body; the connecting seat is provided with a groove, and the connecting seat is arranged in the mounting groove; the two groups of convex blocks are arranged in the two groups of clamping grooves and the two groups of grooves; the two sets of fixing plates are arranged on one sides of the two sets of protruding blocks. Due to the fact that the mounting groove is formed in the clamp base, the connecting base is arranged on the bottom face of the clamping piece, the clamping piece is fixed in the mounting groove through the connecting base, the clamp base and the connecting base are fixedly connected through the protruding block, an operator can disassemble the clamping piece by disassembling the protruding block, and then portable replacement of the clamping piece is achieved. The whole clamp is prevented from being disassembled when the clamping piece breaks down, the maintenance time is shortened, and the operation efficiency of the testing machine is improved.

Description

Technical Field

[0001] The utility model relates to the field of fatigue testing machines, and particularly relates to a fatigue testing machine for train brake cylinders. Background Art

[0002] A fatigue testing machine is a device mainly used to determine the fatigue performance of materials or components under repeated or alternating stresses. It can simulate the fatigue loading conditions in actual working conditions, conduct fatigue tests on materials or components, and evaluate performance parameters such as their fatigue life and fatigue strength.

[0003] The fatigue testing machine can be used to test train brake cylinders. After installing the train brake cylinder on the fixture, ensure its stable fixation, then start the testing machine, load according to the set parameters, monitor and record various data during the test process, and complete the fatigue test of the component.

[0004] However, during the process of implementing the technical solution of the present invention in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0005] When a malfunction occurs or adjustment is needed for the upper clamping part of the fixture during the test, since the fixtures of existing equipment are usually integrally set, the upper clamping part of the fixture cannot be replaced, and the operator needs to disassemble and replace the entire fixture, which is time-consuming and laborious.

[0006] The clamping block on the top surface of the clamping part will wear after long-term use. The wear of the clamping block will directly affect its clamping accuracy, resulting in uneven clamping force or offset of the clamping position, affecting the test results. Summary of the Utility Model

[0007] By providing a fatigue testing machine for train brake cylinders in the embodiments of the present application, the technical problem in the prior art that when a malfunction occurs or adjustment is needed for the upper clamping part of the fixture during the test, since the fixtures of existing equipment are usually integrally set, the upper clamping part of the fixture cannot be replaced, and the operator needs to disassemble and replace the entire fixture, which is time-consuming and laborious, is solved. The portable replacement of the clamping part is realized, the need to disassemble the entire fixture when the clamping part fails is avoided, the maintenance time is shortened, and the operation efficiency of the testing machine is improved; the technical problem in the prior art that the clamping block on the top surface of the clamping part will wear after long-term use, and the wear of the clamping block will directly affect its clamping accuracy, resulting in uneven clamping force or offset of the clamping position, affecting the test results, is solved. The wear-resistant treatment of the clamping block is realized, and the technical effect of improving the service life of the clamping block is achieved.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] The utility model relates to a fatigue testing machine for a train brake cylinder, which comprises a testing machine main body and a fixture. The fixture is arranged on the top surface of the testing machine main body. The fixture includes:

[0010] A fixture seat with a clamping groove, an installation groove and a first jack. The fixture seat is arranged on the top surface of the testing machine main body. Two groups of the clamping grooves are symmetrically arranged on both sides of the fixture seat. Four groups of the first jacks are symmetrically arranged on both sides of the fixture seat. The installation groove is arranged inside the fixture seat;

[0011] A connecting seat with a groove. The connecting seat is arranged inside the installation groove. Two groups of the grooves are symmetrically arranged on both sides of the connecting seat;

[0012] Two convex blocks are arranged inside two groups of the clamping grooves and two groups of the grooves;

[0013] A fixing plate with a second jack. Two groups of the fixing plates are arranged on one side of two groups of the convex blocks. Four groups of the second jacks are symmetrically welded inside two groups of the fixing plates;

[0014] A bolt is arranged inside the first jack and the second jack.

[0015] As a preferred technical solution of the utility model, the connecting seat and the installation groove have the same size. The connecting seat fits with the installation groove. The connecting seat is fixed inside the installation groove by buckling through the convex block.

[0016] As a preferred technical solution of the utility model, the convex block, the clamping groove and the groove have the same size. The convex block, the clamping groove and the groove are on the same horizontal line. The convex block passes through the clamping groove and the groove.

[0017] As a preferred technical solution of the utility model, the convex block is fixed at the central part of the fixing plate. The first jack and the second jack are internally provided with threads. The fixing plate is fixed inside the first jack by the bolt. The bolt passes through the second jack and the first jack. The fixing plate fits with the fixture seat. The first jack, the second jack and the bolt have the same size.

[0018] As a preferred technical solution of the utility model, a clamping piece is arranged on the top surface of the connecting seat;

[0019] A clamping piece is arranged on the top surface of the connecting seat;

[0020] A clamping block with a limiting groove and a first limiting hole. Two groups of the clamping blocks are symmetrically arranged on the top surface of the clamping piece. The limiting groove is arranged on one side of the opposite surfaces of two groups of the clamping blocks. The first limiting hole is internally provided with a threaded hole;

[0021] Among them, the first limiting hole and the limiting groove are vertically arranged, and the first limiting hole fits with the limiting groove;

[0022] The limiting block has a second limiting hole. The limiting block is arranged inside the limiting groove. The second limiting hole is arranged on one side of the opposite surface of the first limiting hole. A screw hole is arranged inside the first limiting hole;

[0023] The wear-resistant layer. Two groups of wear-resistant layers are adhesively fixed on one side of the opposite surfaces of the two groups of limiting blocks. The wear-resistant layer is made of rubber material;

[0024] The bolt. The bolt is arranged inside the first limiting hole and the second limiting hole.

[0025] As a preferred technical solution of the present utility model, the first limiting hole and the second limiting hole have the same size, the limiting block and the limiting groove have the same size. The limiting block and the limiting groove are both rectangularly arranged. The limiting block is snap-fixed inside the limiting groove.

[0026] As a preferred technical solution of the present utility model, the limiting block is threadedly connected inside the limiting groove through the bolt and the second limiting hole.

[0027] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0028] 1. Since an installation groove is arranged in the fixture base, a connection seat is arranged on the bottom surface of the clamping member, the clamping member is fixed in the installation groove through the connection seat, and the fixture base and the connection seat are fixedly connected by the convex block, so that the operator can disassemble the clamping member by disassembling the convex block. Therefore, it effectively solves the technical problem in the prior art that when a failure occurs or adjustment is needed to the clamping member on the upper part of the fixture during the test, since the fixture of the existing equipment is usually integrally arranged and the clamping member on the upper part of the fixture cannot be replaced, the operator needs to disassemble the entire fixture for replacement, which is time-consuming and laborious. Furthermore, it realizes the portable replacement of the clamping member, avoids the need to disassemble the entire fixture when the clamping member fails, shortens the maintenance time, and improves the operation efficiency of the testing machine.

[0029] 2. Since a wear-resistant layer is arranged on one side of the opposite surfaces of the two groups of clamping blocks to slow down the wear of the clamping blocks, and a limiting groove and a limiting block are arranged inside the clamping member and on one side of the wear-resistant layer, so that the operator can regularly replace the wear-resistant layer through the bolt, improving the wear-resistant efficiency. Therefore, it effectively solves the technical problem in the prior art that the clamping blocks on the top surface of the clamping member will be worn after long-term use, and the wear of the clamping blocks will directly affect their clamping accuracy, resulting in uneven clamping force or deviation of the clamping position, affecting the test results. Furthermore, it realizes the wear-resistant treatment of the clamping blocks and improves the technical effect of the service life of the clamping blocks. Description of the Drawings

[0030] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0031] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0032] Figure 2 is in the present utility model Figure 1 an enlarged view of part A;

[0033] Figure 3 is in the present utility model Figure 1 a sectional view of part A;

[0034] In the figure: 1, the main body of the testing machine; 2, the fixture; 3, the fixture seat; 301, the clamping groove; 302, the installation groove; 303, the first jack; 4, the connecting seat; 401, the groove; 5, the convex block; 6, the fixing plate; 601, the second jack; 7, the bolt; 8, the clamping piece; 9, the clamping block; 901, the limiting groove; 902, the first limiting hole; 10, the limiting block; 101, the second limiting hole; 11, the wear-resistant layer; 12, the plug pin. Detailed implementation manners

[0035] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0036] Among them, the same reference numerals in the accompanying drawings all refer to the same components. Embodiment

[0037] As Figures 1-3 shown, the present utility model provides a fatigue testing machine for a train brake cylinder, including the main body 1 of the testing machine and the fixture 2. The fixture 2 is arranged on the top surface of the main body 1 of the testing machine. The fixture 2 includes:

[0038] The fixture seat 3, which has a clamping groove 301, an installation groove 302 and a first jack 303. The fixture seat 3 is arranged on the top surface of the main body 1 of the testing machine. Two groups of clamping grooves 301 are symmetrically arranged on both sides of the fixture seat 3. Four groups of first jacks 303 are symmetrically arranged on both sides of the fixture seat 3. The installation groove 302 is arranged inside the fixture seat 3;

[0039] The connecting seat 4, which has a groove 401. The connecting seat 4 is arranged inside the installation groove 302. Two groups of grooves 401 are symmetrically arranged on both sides of the connecting seat 4;

[0040] The convex blocks 5, two groups of convex blocks 5 are arranged inside two groups of clamping grooves 301 and two groups of grooves 401;

[0041] The fixed plate 6 has a second jack 601. Two sets of fixed plates 6 are arranged on one side of two sets of bumps 5, and four second jacks 601 are symmetrically welded inside the two sets of fixed plates 6.

[0042] The bolt 7 is arranged inside the first jack 303 and the second jack 601.

[0043] Specifically, as Figures 1-3 shown, the fixture base 3 is used to set the installation groove 302 to install the connecting seat 4. The installation groove 302 is used to place the connecting seat 4. The connecting seat 4 is used to limit the clamping member 8 in the installation groove 302, allowing the operator to disassemble and assemble the clamping member 8 portably. The groove 401 and the card slot 301 are used to install the clamping member 5. The clamping member 5 is used to snap and fixedly connect the connecting seat 4 and the fixture base 3. The fixed plate 6 is used to set the second screw hole 601 to insert the bolt 7. After the operator inserts the clamping member 5 into the groove 401 and the card slot 301, the fixed plate 6 will fit on the outer surface of the fixture base 3. The second jack 601 and the first jack 303 will align, and then the bolt 7 is inserted into the second jack 601 and the first jack 303, and the connecting seat 4 can be fixed inside the fixture base 3.

[0044] The connecting seat 4 and the installation groove 302 have the same size, the connecting seat 4 fits with the installation groove 302, and the connecting seat 4 is snap-fixed inside the installation groove 302 through the bump 5.

[0045] Specifically, as Figures 1-3 shown, since the connecting seat 4 and the installation groove 302 have the same size and are closely fitted, it can ensure that the connecting seat is stable and does not shake inside the installation groove 302, thereby improving the stability of the entire structure.

[0046] The bumps 5, the card slots 301 and the grooves 401 have the same size, the bumps 5, the card slots 301 and the grooves 401 are on the same horizontal line, and the bumps 5 pass through the card slots 301 and the grooves 401.

[0047] Specifically, as Figures 1-3 shown, since the bumps 5, the card slots 301 and the grooves 401 have the same size and are on the same horizontal line, the bumps 5 can accurately pass through the card slots 301 and dock with the grooves 401 to achieve seamless connection.

[0048] The bumps 5 are fixed at the central part of the fixed plate 6. The first jack 303 and the second jack 601 are internally threaded. The fixed plate 6 is fixed inside the first jack 303 through the bolt 7. The bolt 7 passes through the second jack 601 and the first jack 303. The fixed plate 6 fits with the fixture base 3. The first jack 303, the second jack 601 and the bolt 7 have the same size.

[0049] Specifically, as Figures 1-3As shown, the bump 5 is fixed at the central part of the fixing plate 6, which helps to achieve the precise positioning between the fixing plate 6 and the fixture base 3 and avoid the position deviation during the installation process.

[0050] The top surface of the connecting seat 4 is provided with a clamping member 8;

[0051] The clamping member 8 is arranged on the top surface of the connecting seat 4;

[0052] The clamping block 9 has a limiting groove 901 and a first limiting hole 902. Two groups of clamping blocks 9 are symmetrically arranged on the top surface of the clamping member 8. The limiting groove 901 is arranged on one side of the opposite surfaces of the two groups of clamping blocks 9, and the first limiting hole 902 is internally provided with a threaded hole;

[0053] Among them, the first limiting hole 902 and the limiting groove 901 are vertically arranged, and the first limiting hole 902 is in contact with the limiting groove 901;

[0054] The limiting block 10 has a second limiting hole 101. The limiting block 10 is arranged inside the limiting groove 901. The second limiting hole 101 is arranged on the side opposite to the first limiting hole 902, and the first limiting hole 902 is internally provided with a threaded hole;

[0055] The wear-resistant layer 11. Two groups of wear-resistant layers 11 are adhesively fixed on one side of the opposite surfaces of the two groups of limiting blocks 10. The wear-resistant layer 11 is made of rubber;

[0056] The pin 12 is arranged inside the first limiting hole 902 and the second limiting hole 101.

[0057] Specifically, as Figures 1-3 shown, the clamping member 8 is used to install two groups of clamping blocks 9. The limiting groove 901 is used to place the limiting block 10. The first limiting hole 902 and the second limiting hole 101 are used to insert the pin 12. The pin 12 is used to threadedly connect the limiting block 10 inside the clamping block 9. The wear-resistant layer 11 is used to avoid the loss caused by the friction between the clamping block 9 and the clamping member.

[0058] The first limiting hole 902 and the second limiting hole 101 have the same size. The limiting block 10 and the limiting groove 901 have the same size. The limiting block 10 and the limiting groove 901 are both rectangularly arranged. The limiting block 10 is snap-fixed inside the limiting groove 901.

[0059] Specifically, as Figures 1-3 shown, since the limiting block 10 and the limiting groove 901 have the same size and are both rectangular, this setting ensures that the limiting block can be accurately snapped into the limiting groove 901 to achieve precise positioning.

[0060] The limiting block 10 is threadedly connected inside the limiting groove 901 through the pin 12 and the second limiting hole 101.

[0061] Specifically, asFigures 1-3 As shown, through the threaded connection, the connection between the limit block 10 and the limit groove 901 is tighter and more stable, and it is not easy to loosen. This connection method can withstand greater forces and torques, ensuring that no failures occur due to loose connections during operation.

[0062] Instructions for use: When it is necessary to disassemble and replace the clip 8, remove the bolt 7 from the second jack 601 and the first jack 303, and then hold the fixing plate 6 and move it outwards until the clip 5 is pulled out of the groove 401 and the card slot 301. After that, the connection seat 4 and the fixture seat 3 will be released from the limit fixation, and the clip 8 can be disassembled portably; when the equipment is running, the wear-resistant layer 11 installed on one side of the clamping block 9 can effectively avoid the loss caused by the friction between the clamping block 9 and the clamping part. And when the wear-resistant layer 11 has been used for a period of time, remove the pin 12 from the first limit hole 902 and the second limit hole 101, and the fixation between the limit block 10 and the limit groove 901 can be released, and the limit block 10 and the wear-resistant layer 11 can be removed to achieve regular replacement and maintenance of the wear-resistant layer 11.

[0063] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A train brake cylinder fatigue testing machine, comprising a testing machine body (1) and a fixture (2), wherein the fixture (2) is arranged on the top surface of the testing machine body (1), and is characterized in that: The clamp (2) comprises: A fixture seat (3) having a card slot (301), a mounting slot (302) and a first plug hole (303); the fixture seat (3) is arranged on the top surface of the testing machine body (1); two groups of the card slots (301) are symmetrically arranged on both sides of the fixture seat (3); four groups of the first plug holes (303) are symmetrically arranged on both sides of the fixture seat (3); and the mounting slot (302) is arranged inside the fixture seat (3); A connecting seat (4) having a groove (401), the connecting seat (4) being arranged inside the mounting groove (302), and two groups of the grooves (401) being symmetrically arranged on both sides of the connecting seat (4); Bumps (5), two groups of bumps (5) are arranged inside the two groups of slots (301) and the two groups of grooves (401); A fixing plate (6) having a second plug hole (601), the two groups of fixing plates (6) being arranged on one side of the two groups of protrusions (5), and the four groups of the second plug holes (601) being symmetrically welded inside the two groups of fixing plates (6); A bolt (7), wherein the bolt (7) is arranged inside the first insertion hole (303) and the second insertion hole (601).

2. A train brake cylinder fatigue testing machine according to claim 1, characterized in that: The connection seat (4) has the same size as the installation slot (302), the connection seat (4) fits the installation slot (302), and the connection seat (4) is fixed inside the installation slot (302) by snapping the protrusion (5).

3. A train brake cylinder fatigue testing machine according to claim 1, characterized in that: The convex block (5), the card slot (301) and the concave groove (401) have the same size, the convex block (5), the card slot (301) and the concave groove (401) are located on the same horizontal line, and the convex block (5) passes through the card slot (301) and the concave groove (401).

4. A train brake cylinder fatigue testing machine according to claim 1, characterized in that: The protrusion (5) is fixed to the center of the fixing plate (6); the first plug hole (303) and the second plug hole (601) are provided with internal threads; the fixing plate (6) is fixed to the inside of the first plug hole (303) by means of a bolt (7); the bolt (7) passes through the second plug hole (601) and the first plug hole (303); the fixing plate (6) is fitted with the clamp seat (3); and the first plug hole (303), the second plug hole (601) and the bolt (7) have the same size.

5. A train brake cylinder fatigue testing machine according to claim 1, characterized in that: A clamp (8) is provided on the top surface of the connecting seat (4); A clamp (8), the clamp (8) being arranged on the top surface of the connecting seat (4); The clamping block (9) has a limiting groove (901) and a first limiting hole (902), the two groups of the clamping blocks (9) are symmetrically arranged on the top surface of the clamping member (8), the limiting groove (901) is arranged on one side of the opposite surface of the two groups of the clamping blocks (9), and the first limiting hole (902) is provided with a screw hole; Wherein, the first limiting hole (902) and the limiting groove (901) are arranged vertically, and the first limiting hole (902) and the limiting groove (901) are in close contact with each other; A limiting block (10) having a second limiting hole (101), the limiting block (10) being arranged inside the limiting groove (901), the second limiting hole (101) being arranged on a side opposite to the first limiting hole (902), and the first limiting hole (902) having a screw hole built therein; A wear-resistant layer (11), wherein the two groups of the wear-resistant layers (11) are adhesively fixed to one side of the opposite surface of the two groups of the limit blocks (10), and the wear-resistant layers (11) are made of rubber; A latch pin (12), the latch pin (12) being arranged inside the first limiting hole (902) and the second limiting hole (101).

6. A train brake cylinder fatigue testing machine according to claim 5, characterized in that: The first limiting hole (902) and the second limiting hole (101) have the same size, the limiting block (10) and the limiting groove (901) have the same size, the limiting block (10) and the limiting groove (901) are both rectangular in shape, and the limiting block (10) is snap-fastened inside the limiting groove (901).

7. A train brake cylinder fatigue testing machine according to claim 5, characterized in that: The limiting block (10) is threadedly connected to the inside of the limiting groove (901) via the latch (12) and the second limiting hole (101).

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