Rail transit coupling large displacement life detection test bench convenient to maintain

Abstract

The utility model discloses a rail transit coupling large-displacement service life detection test bench convenient to maintain, which belongs to the technical field of coupling test benches and comprises a horizontal table top and a torsion cylinder mounted on the upper surface of the horizontal table top. An annular mounting groove is formed in the position, corresponding to the torsion cylinder, of the upper surface of the horizontal table top, assembling grooves are symmetrically formed in the edge of the annular mounting groove, limiting sliding grooves are formed in the inner walls of the two sides of each assembling groove, and clamping blocks extending to the inner side of the annular mounting groove are mounted on the inner sides of the assembling grooves; after the structural member for testing the rail transit coupling on the inner side of the torsion cylinder is damaged, the clamping block is dragged by the shifting block to move so as to be separated from the positioning hole, so that the torsion cylinder can be conveniently detached to overhaul and maintain the structural member for testing the rail transit coupling.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling test benches, and more specifically to a large displacement life detection test bench for a rail transit coupling which is convenient to maintain. Background Art

[0002] As an indispensable component in the mechanical transmission process, the coupling plays an important role in transmitting torque. Therefore, in order to better understand the performance indicators of the coupling, a set of special testing instruments is needed to test the performance of the coupling. However, most of the coupling test benches on the market currently adopt a horizontal structure and use a guide rail slider mechanism to facilitate the clamping of the coupling. When the coupling is tested, the torque will eventually react to the guide rail. The structural stiffness of the horizontal structure test bench is determined by the weak link of the guide rail slider; the horizontal structure will have a certain impact on the test results due to the gravity of the shaft system itself. The horizontal structure test bench of the coupling generally has low accuracy and it is difficult to meet the high-precision detection of the static and dynamic performance of the coupling.

[0003] An existing patent is a coupling vertical test bench. Patent authorization number CN213580081U uses a vertically mounted torque cylinder to support a vertically mounted coupling, thereby avoiding the adverse effects of shaft system gravity on the test results. The vertically arranged torque cylinder that bears torque can improve the torsional stiffness of the test bench, thereby improving the detection accuracy.

[0004] However, the torque cylinder in patent authorization number CN213580081U is vertically fixedly connected to the horizontal platform surface. Therefore, when the structural parts inside the torque cylinder for coupling testing are damaged, it is not convenient to disassemble the torque cylinder and replace and maintain the damaged structural parts. Therefore, we propose a large displacement life detection test bench for rail transit couplings that is easy to maintain to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a large-displacement life detection test bench for rail transit couplings that is easy to maintain. After the structural parts used for testing rail transit couplings inside the torque cylinder are damaged, the card block can be dragged and moved out of the positioning hole by using a shift block, thereby facilitating the removal of the torque cylinder and the inspection and maintenance of the structural parts used for testing rail transit couplings.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A large displacement life test bench for rail transit couplings that is easy to maintain, comprising a horizontal platform and a torque cylinder installed on the upper surface of the horizontal platform, wherein an annular mounting groove is provided at a position of the upper surface of the horizontal platform corresponding to the torque cylinder;

[0010] The edge of the annular mounting groove is symmetrically provided with assembly grooves, and the inner walls on both sides of the assembly groove are provided with limited sliding grooves, the inner side of the assembly groove is provided with a clamping block extending to the inner side of the annular mounting groove, and one end of the clamping block extending to the inner side of the annular mounting groove is provided with an inclined surface, the outer walls on both sides of the clamping block are provided with guide blocks slidably connected with the limited sliding grooves, and the top of the clamping block is integrally formed with a shifting block;

[0011] A spring is also installed on the inner side of the assembly groove;

[0012] Positioning holes are provided at the positions of the torque cylinder corresponding to the clamping block;

[0013] The root of the torque cylinder is symmetrically fixedly connected with a positioning block, and the portion of the annular mounting groove away from the assembly groove is symmetrically connected with a positioning groove, and the positioning groove is engaged with the positioning block.

[0014] Furthermore, a hanging bracket in a U-shaped structure is fixedly connected to the side wall of the horizontal platform.

[0015] Furthermore, a tool box is detachably connected to the hanger, and the tool box is symmetrically fixedly connected to the outer wall of the hanger with hanging ears.

[0016] Furthermore, the annular mounting groove is clearance-matched with the bottom end of the torque cylinder.

[0017] Furthermore, one end of the spring is connected to the guide block, and the other end of the spring is connected to the end wall of the assembly groove.

[0018] Furthermore, the shift block is arranged in a right-angled triangle structure, and the inclined surface of the shift block is integrally formed with anti-slip convex teeth.

[0019] Furthermore, the positioning groove and the positioning block form an embedded structure.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) In this scheme, the positioning block provided at the root of the torque cylinder is connected to the positioning groove, so that the bottom of the torque cylinder is embedded in the inner side of the annular installation groove, and the bottom end of the annular installation groove is abutted against the inclined surface of the block. While pressing the torque cylinder downward, the guide block provided on the side wall of the block cooperates with the limiting sliding groove to slide and compress the spring to deform. After the bottom end of the torque cylinder is abutted against the bottom wall of the annular installation groove, the positioning hole and the block are exactly corresponding. Then, under the elastic force of the spring, the block is pushed into the inner side of the positioning hole to complete the installation of the torque cylinder. When the structural parts inside the torque cylinder for testing the rail transit coupling are damaged, the block is moved out of the positioning hole by dragging it with the shifting block, so that the torque cylinder can be removed to inspect and maintain the structural parts for testing the rail transit coupling.

[0023] (2) This solution uses a hanging ear to hang the tool box on the hanger, and puts tools for maintenance in the tool box, so that it is convenient to maintain the structural parts used for rail transit coupling testing after the torque cylinder is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the horizontal platform structure of the utility model;

[0026] Figure 3 It is an enlarged schematic diagram of part A of the utility model;

[0027] Figure 4 This is a schematic diagram of the card block structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the torque cylinder structure of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Horizontal surface; 2. Torque cylinder; 3. Annular mounting groove; 4. Assembly groove; 5. Block; 6. Limiting slide groove; 7. Guide block; 8. Spring; 9. Dial block; 10. Positioning hole; 11. Positioning block; 12. Positioning groove; 13. Hanging bracket; 14. Tool box; 15. Hanging ear. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] Example:

[0033] See also Figure 1-5 A large displacement life test bench for rail transit couplings that is easy to maintain, comprising a horizontal platform surface 1 and a torque cylinder 2 installed on the upper surface of the horizontal platform surface 1, and an annular mounting groove 3 is provided on the upper surface of the horizontal platform surface 1 at a position corresponding to the torque cylinder 2;

[0034] The edge of the annular mounting groove 3 is symmetrically provided with assembly grooves 4, and the inner walls on both sides of the assembly groove 4 are provided with limited sliding grooves 6, and the inner side of the assembly groove 4 is provided with a clamping block 5 extending to the inner side of the annular mounting groove 3, and one end of the clamping block 5 extending to the inner side of the annular mounting groove 3 is provided with an inclined surface, and the outer walls on both sides of the clamping block 5 are provided with guide blocks 7 slidably connected with the limited sliding grooves 6, and the top of the clamping block 5 is integrally formed with a shifting block 9;

[0035] A spring 8 is also installed on the inner side of the assembly groove 4;

[0036] A positioning hole 10 is provided at a position of the torque cylinder 2 corresponding to the clamping block 5;

[0037] The root of the torque cylinder 2 is symmetrically fixedly connected with a positioning block 11, and the portion of the annular mounting groove 3 away from the assembly groove 4 is symmetrically connected with a positioning groove 12, and the positioning groove 12 is engaged with the positioning block 11;

[0038] It should be noted that when the easy-to-maintain rail transit coupling large displacement life detection test bench is in use, the positioning block 11 set at the root of the torque cylinder 2 is connected with the positioning groove 12, so that the bottom of the torque cylinder 2 is embedded into the inner side of the annular mounting groove 3, and the bottom end of the annular mounting groove 3 is abutted against the inclined surface of the block 5. While pressing down the torque cylinder 2, the guide block 7 set on the side wall of the block 5 cooperates with the limiting slide groove 6 to slide and compress and deform the spring 8. After the bottom end of the torque cylinder 2 is abutted against the bottom wall of the annular mounting groove 3, the positioning hole 10 and the block 5 are exactly corresponding. Then, under the elastic force of the spring 8, the block 5 is pushed into the inner side of the positioning hole 10 to complete the installation of the torque cylinder 2. When the structural parts used for rail transit coupling testing on the inner side of the torque cylinder 2 are damaged, the block 5 is moved out of the positioning hole 10 by using the shifting block 9, so that the torque cylinder 2 can be removed conveniently and the structural parts used for rail transit coupling testing can be inspected and maintained.

[0039] like Figure 1 As shown, a U-shaped structured hanger 13 is fixedly connected to the side wall of the horizontal platform 1, a tool box 14 is detachably connected to the hanger 13, and a hanging ear 15 is symmetrically fixedly connected to the tool box 14 corresponding to the outer wall of the hanger 13;

[0040] It should be noted that by hanging the tool box 14 on the hanger 13 using the hanging ears 15 and placing the tools for maintenance in the tool box 14, it is convenient to perform maintenance work on the structural parts used for testing the rail transit coupling after the torque cylinder 2 is removed.

[0041] like Figure 1 , Figure 2 , Figure 5 As shown, the positioning groove 12 and the positioning block 11 form an embedded structure, and the annular mounting groove 3 is clearance-matched with the bottom end of the torque cylinder 2;

[0042] It should be noted that the positioning groove 12 and the positioning block 11 form an embedded structure to ensure the accuracy of the installation of the torque cylinder 2, thereby ensuring the precise docking between the clamping block 5 and the positioning hole 10;

[0043] The annular mounting groove 3 is clearance-matched with the bottom end of the torque cylinder 2 to ensure the stability of the torque cylinder 2 after assembly.

[0044] like Figure 3 As shown, one end of the spring 8 is connected to the guide block 7, and the other end of the spring 8 is connected to the end wall of the assembly groove 4;

[0045] It should be noted that by pushing the block 5 into the inner side of the positioning hole 10 under the elastic force of the spring 8, the installation of the torque cylinder 2 can be completed quickly.

[0046] like Figure 3 As shown, the shift block 9 is arranged in a right triangle structure, and the inclined surface of the shift block 9 is integrally formed with anti-slip convex teeth;

[0047] It should be noted that the provision of the anti-slip convex teeth can increase the friction between the hand and the shift block 9, thereby facilitating the dragging of the clamping block 5.

[0048] When in use: by connecting the positioning block 11 set at the root of the torque cylinder 2 with the positioning groove 12, the bottom of the torque cylinder 2 is embedded into the inner side of the annular mounting groove 3, and the bottom end of the annular mounting groove 3 is abutted against the inclined surface of the block 5, while pressing down the torque cylinder 2, the guide block 7 set on the side wall of the block 5 cooperates with the limiting slide groove 6 to slide and compress and deform the spring 8, after the bottom end of the torque cylinder 2 is abutted against the bottom wall of the annular mounting groove 3, the positioning hole 10 and the block 5 are exactly corresponding, and then the block 5 is pushed into the inner side of the positioning hole 10 under the elastic force of the spring 8 to complete the installation of the torque cylinder 2, when the structural parts inside the torque cylinder 2 for testing the rail transit coupling are damaged, the block 5 is moved out of the positioning hole 10 by using the shifting block 9, so that the torque cylinder 2 can be removed conveniently and the structural parts for testing the rail transit coupling can be inspected and maintained.

[0049] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A large displacement life test bench for rail transit couplings that is easy to maintain, comprising a horizontal platform (1) and a torque cylinder (2) mounted on the upper surface of the horizontal platform (1), characterized in that: An annular mounting groove (3) is provided on the upper surface of the horizontal platform (1) at a position corresponding to the torque cylinder (2); The edge of the annular mounting groove (3) is symmetrically provided with assembly grooves (4), and the inner walls on both sides of the assembly groove (4) are provided with limit sliding grooves (6), the inner side of the assembly groove (4) is provided with a clamping block (5) extending to the inner side of the annular mounting groove (3), and one end of the clamping block (5) extending to the inner side of the annular mounting groove (3) is provided with an inclined surface, the outer walls on both sides of the clamping block (5) are provided with guide blocks (7) slidably connected to the limit sliding grooves (6), and the top of the clamping block (5) is integrally formed with a shifting block (9); A spring (8) is also installed on the inner side of the assembly groove (4); A positioning hole (10) is provided at a position of the torque cylinder (2) corresponding to the clamping block (5); The root of the torque cylinder (2) is symmetrically fixedly connected with a positioning block (11), and the portion of the annular installation groove (3) away from the assembly groove (4) is symmetrically connected with a positioning groove (12), and the positioning groove (12) is engaged with the positioning block (11).

2. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 1 is characterized by: A hanging bracket (13) arranged in a U-shaped structure is fixedly connected to the side wall of the horizontal surface (1).

3. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 2 is characterized by: The hanger (13) is detachably connected to a tool box (14), and the tool box (14) is symmetrically fixedly connected to an outer wall of the hanger (13) with a hanging ear (15).

4. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 1 is characterized by: The annular mounting groove (3) is clearance-matched with the bottom end of the torque cylinder (2).

5. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 1 is characterized by: One end of the spring (8) is connected to the guide block (7), and the other end of the spring (8) is connected to the end wall of the assembly groove (4).

6. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 1 is characterized by: The shift block (9) is arranged in a right-angled triangle structure, and the inclined surface of the shift block (9) is integrally formed with anti-slip convex teeth.

7. The large displacement life test bench for rail transit couplings that is easy to maintain according to claim 1 is characterized by: The positioning groove (12) and the positioning block (11) form an embedded structure.

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