Abrasion fatigue test device for electric power fittings

Abstract

The utility model relates to the technical field of wear fatigue tests, in particular to an electric power fitting wear fatigue test device which comprises a test bed, a fixing frame is installed on the top face of the test bed, a hanging ring is placed on the inner side of the fixing frame, and through holes are formed in the two ends of the hanging ring. A lifting structure is mounted on the top surface of the test bed, the lifting structure comprises a movable frame, the movable frame is slidably mounted on the inner side of a fixed frame, a first air cylinder is fixedly mounted on the top surface of the fixed frame, and a test cable is fixedly connected to the inner side of the movable frame. According to the utility model, the conical head can be inserted into the through hole to fix one end of the hanging ring, the abutting block can be clamped on the outer side of the other end of the hanging ring, stable installation of the hanging ring on the inner side of the movable frame is realized, and the hanging ring can be driven to move left and right on the outer side of a test cable through the second cylinder. Therefore, the arc-shaped part of the hanging ring can be stably contacted with the test cable, so that the test can be smoothly carried out.

Description

Technical Field

[0001] This utility model relates to the field of wear fatigue testing technology, specifically to a wear fatigue testing device for power fittings. Background Technology

[0002] U-shaped hanging rings are a common component in power fittings. They are often used in power line towers to suspend and fix power components such as cables and conductors. Specifically, U-shaped hanging rings can be installed on power line towers, through which cables or conductors are passed, and the arc-shaped part of the hanging ring is used to suspend the power components on the tower.

[0003] In response, Chinese patent application number CN202123248703.0 discloses a power fitting wear testing device, including a frame with a sliding groove on the frame. A mounting frame is slidably connected to the sliding groove. A tension spring is provided at the top of the mounting frame, with the end of the spring away from the mounting frame connected to the top of the frame. A mounting groove for placing power fittings is provided on the side of the mounting frame facing away from the frame. A connecting hole communicating with the mounting groove is provided on the side of the mounting frame facing the frame, and a test cable is inserted into the connecting hole. Fixed seats are symmetrically arranged on the side of the frame facing the mounting frame. The two ends of the test cable are wound and fixed to the two fixed seats respectively. A pulling mechanism for controlling the sliding movement of the mounting frame along the sliding groove is provided at the bottom of the frame. This utility model detects the frictional damage between the power fittings and the cable by continuously sliding and rubbing the test cable wound between the fixed seats as the power fittings move in an arc.

[0004] The device uses screws and nuts to fix the U-shaped hanging ring for testing. However, the installation of the U-shaped hanging ring in the mounting frame requires six sets of screws to work together, which is cumbersome. In addition, the contact area between the screws and the U-shaped hanging ring is limited, so the fixing effect of the U-shaped hanging ring is not ideal, which will affect the smooth progress of the test.

[0005] Therefore, in order to solve the above problems, a wear fatigue testing device for power fittings is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a power fitting wear fatigue testing device to solve the problem mentioned in the background art that the existing device uses screws and nuts to fix the U-shaped hanging ring for testing. However, the installation of the U-shaped hanging ring in the mounting frame requires six sets of screws to work together, which is cumbersome. In addition, the contact area between the screws and the U-shaped hanging ring is limited, so the fixing effect of the U-shaped hanging ring is not ideal, which will affect the smooth progress of the test.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a power fitting wear fatigue testing device, comprising: a test bench, a fixed frame installed on the top surface of the test bench, a hanging ring placed on the inner side of the fixed frame, and through holes opened at both ends of the hanging ring;

[0008] The top surface of the test bench is equipped with a lifting structure, which includes a movable frame. The movable frame is slidably installed inside the fixed frame. A first cylinder is fixedly installed on the top surface of the fixed frame, and a test cable is fixedly connected to the inner side of the movable frame.

[0009] The lifting structure is equipped with a fixed structure, which includes a mounting frame. The mounting frame is fixedly installed on the right side wall of the fixed frame. A second cylinder is fixedly installed at the end of the mounting frame. A movable frame is fixedly connected to the extended end of the second cylinder. A conical head is inserted into the surface of the movable frame. A threaded rod is movably installed on the left side wall of the movable frame via a bearing. A stop block is inserted into the right side wall of the movable frame. A spring is fixedly connected to the outer wall of the stop block.

[0010] Preferably, the extended end of the first cylinder is fixedly connected to the movable frame.

[0011] Preferably, the test cable is vertically installed on the upper and lower walls inside the movable frame, and the test cable passes through the inside of the hanging ring.

[0012] Preferably, the conical head is provided in two sets, and the ends of the two sets of conical heads are respectively inserted into the two sets of through holes.

[0013] Preferably, the threaded rod is connected to two sets of tapered head threads.

[0014] Preferably, the abutment block abuts against the side wall of the hanging ring, and one end of the spring is fixedly connected to the side wall of the movable frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a conical head, can be inserted into the through hole to fix one end of the hanging ring, and the abutment can be locked on the outside of the other end of the hanging ring, so as to achieve stable installation of the hanging ring on the inside of the movable frame. Furthermore, by using the second cylinder, the hanging ring can be moved left and right on the outside of the test cable, so that the arc-shaped part of the hanging ring can stably contact the test cable, so as to facilitate the smooth progress of the test.

[0016] This invention features a lifting and fixing structure. The hanging ring is fitted onto the outside of the test cable. Pulling the stop block stretches the spring, and the end of the stop block is housed inside the movable frame and lowered to the inner side of the frame. Rotating the threaded rod, which is threadedly connected to two sets of tapered heads, causes the two sets of tapered heads to move towards each other. The two sets of tapered heads move on the surface of the movable frame and approach each other. The ends of the two sets of tapered heads are respectively inserted into two sets of through holes at both ends of the hanging ring, thus limiting one end of the hanging ring. Position the abutment, release it, and the abutment will return to its original position under the elastic action of the spring. The end of the abutment will then fit against the other end of the hanging ring, fixing the hanging ring inside the movable frame. Activating the second cylinder will move the movable frame left and right. As the movable frame moves, it will bring the hanging ring closer to the test cable, allowing the arc-shaped part of the hanging ring to contact the surface of the test cable. Activating the first cylinder will move the movable frame up and down within the fixed frame, causing the test cable to rub against the arc-shaped part of the hanging ring, thus conducting a wear fatigue test on the hanging ring. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the structure of this utility model;

[0019] Figure 3 This is an exploded view of the structure of the movable frame of this utility model;

[0020] Figure 4 This is a top sectional view of the structure of the hanging ring and the conical head of this utility model.

[0021] In the diagram: 1. Test bench; 11. Fixed frame; 12. Hanging ring; 13. Through hole; 2. Lifting structure; 21. Moving frame; 22. First cylinder; 23. Test cable; 3. Fixed structure; 31. Mounting frame; 32. Second cylinder; 33. Movable frame; 34. Conical head; 35. Threaded rod; 36. Stop block; 37. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 An embodiment of the wear and fatigue testing device for power fittings provided by this utility model:

[0024] The test bench 1, fixing frame 11, hanging ring 12, through hole 13, first cylinder 22, test cable 23 and second cylinder 32 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] A power fitting wear fatigue testing device includes: a test bench 1, a fixed frame 11 installed on the top surface of the test bench 1, a hanging ring 12 placed on the inner side of the fixed frame 11, and through holes 13 opened at both ends of the hanging ring 12.

[0026] The top surface of the test bench 1 is equipped with a lifting structure 2, which includes a movable frame 21. The movable frame 21 is slidably installed on the inner side of the fixed frame 11. The top surface of the fixed frame 11 is fixedly installed with a first cylinder 22, and the inner side of the movable frame 21 is fixedly connected with a test cable 23.

[0027] A fixed structure 3 is installed on the lifting structure 2. The fixed structure 3 includes a mounting frame 31, which is fixedly installed on the right side wall of the fixed frame 11. A second cylinder 32 is fixedly installed at the end of the mounting frame 31. A movable frame 33 is fixedly connected to the extended end of the second cylinder 32. A conical head 34 is inserted into the surface of the movable frame 33. A threaded rod 35 is movably installed on the left side wall of the movable frame 33 via a bearing. A stop block 36 is inserted into the right side wall of the movable frame 33. A spring 37 is fixedly connected to the outer wall of the stop block 36. The conical head 34 can be inserted into the through hole 13 to fix one end of the hanging ring 12. The stop block 36 can be locked on the other side of the hanging ring 12, so that the hanging ring 12 is stably installed inside the movable frame 33. The second cylinder 32 can drive the hanging ring 12 to move left and right outside the test cable 23, so that the arc-shaped part of the hanging ring 12 can stably contact the test cable 23, so that the test can proceed smoothly.

[0028] Furthermore, the extended end of the first cylinder 22 is fixedly connected to the movable frame 21, and the first cylinder 22 can drive the movable frame 21 to move up and down within the fixed frame 11.

[0029] Furthermore, the test cable 23 is vertically installed on the upper and lower walls inside the movable frame 21. The test cable 23 passes through the inside of the hanging ring 12. The movement of the movable frame 21 can drive the test cable 23 to move. When the test cable 23 moves, it can rub against the hanging ring 12.

[0030] Furthermore, the conical head 34 is provided in two sets, with the ends of the two sets of conical heads 34 respectively inserted into the two sets of through holes 13. The through holes 13 are circular and can be adapted to the conical head 34 to meet the fixing requirements of hanging rings 12 of different sizes, thus ensuring the practicality of the device.

[0031] Furthermore, the threaded rod 35 is threadedly connected to two sets of tapered heads 34, and the rotation of the threaded rod 35 can drive the two sets of tapered heads 34 to move stably and retract on the movable frame 33.

[0032] Furthermore, the abutment block 36 abuts against the side wall of the hanging ring 12, and one end of the spring 37 is fixedly connected to the side wall of the movable frame 33. The other end of the hanging ring 12 can be fixed by the abutment block 36, and the spring 37 provides power for the abutment block 36 to abut against the hanging ring 12.

[0033] Working principle: Before the test, the hanging ring 12 is placed on the outside of the test cable 23. Pulling the stop block 36 stretches the spring 37, and the end of the stop block 36 is housed inside the movable frame 33 and lowered to the inside of the movable frame 33. Rotating the threaded rod 35, which is threadedly connected to two sets of conical heads 34, causes the two sets of conical heads 34 to move towards each other. The two sets of conical heads 34 move on the surface of the movable frame 33 and approach each other. The ends of the two sets of conical heads 34 are then inserted into the hanging ring. In the two sets of through holes 13 at both ends of 12, one end of the hanging ring 12 can be limited. When the stop block 36 is released, the stop block 36 will be reset under the elastic action of the spring 37. The end of the stop block 36 will then fit against the other end of the hanging ring 12, which can fix the hanging ring 12 inside the movable frame 33. When the second cylinder 32 is started, the movable frame 33 can be moved left and right. When the movable frame 33 moves, it can bring the hanging ring 12 closer to the test cable 23 so that the arc-shaped part of the hanging ring 12 can contact the surface of the test cable 23, thus completing the assembly.

[0034] During the test, the first cylinder 22 is activated, which drives the moving frame 21 to move up and down within the fixed frame 11. This causes the test cable 23 to rub up and down against the arc-shaped part of the hanging ring 12, thus conducting a wear fatigue test on the hanging ring 12. The operation is convenient, the stability is strong, and it is more practical.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A device for testing wear fatigue of power fittings, comprising: Test bench (1), the top surface of the test bench (1) is equipped with a fixing frame (11), the inner side of the fixing frame (11) is provided with a hanging ring (12), and the two ends of the hanging ring (12) are provided with through holes (13). Its features are: The top surface of the test bench (1) is equipped with a lifting structure (2), which includes a movable frame (21). The movable frame (21) is slidably installed on the inner side of the fixed frame (11). The top surface of the fixed frame (11) is fixedly equipped with a first cylinder (22), and the inner side of the movable frame (21) is fixedly connected with a test cable (23). The lifting structure (2) is equipped with a fixed structure (3), which includes a mounting frame (31). The mounting frame (31) is fixedly installed on the right side wall of the fixed frame (11). A second cylinder (32) is fixedly installed at the end of the mounting frame (31). A movable frame (33) is fixedly connected to the extended end of the second cylinder (32). A conical head (34) is inserted into the surface of the movable frame (33). A threaded rod (35) is movably installed on the left side wall of the movable frame (33) through a bearing. A stop block (36) is inserted into the right side wall of the movable frame (33). A spring (37) is fixedly connected to the outer wall of the stop block (36).

2. The power fitting wear fatigue testing device according to claim 1, characterized in that: The extended end of the first cylinder (22) is fixedly connected to the movable frame (21).

3. The power fitting wear fatigue testing device according to claim 1, characterized in that: The test cable (23) is vertically installed on the upper and lower walls inside the movable frame (21), and the test cable (23) passes through the inside of the hanging ring (12).

4. The power fitting wear fatigue testing device according to claim 1, characterized in that: The conical head (34) is provided in two sets, and the ends of the two sets of conical heads (34) are respectively inserted into the two sets of through holes (13).

5. The power fitting wear fatigue testing device according to claim 1, characterized in that: The threaded rod (35) is threadedly connected to two sets of tapered heads (34).

6. The power fitting wear fatigue testing device according to claim 1, characterized in that: The abutment (36) abuts against the side wall of the hanging ring (12), and one end of the spring (37) is fixedly connected to the side wall of the movable frame (33).

Images