Seal bar wear test fixture

Abstract

The utility model discloses a sealing strip abrasion test frock, including the bottom plate, the bottom plate top is provided with the base, the base top both ends all are fixedly connected with the fixed plate, and both sides fixed plate are rotatably connected with the two -way screw rod, and the two -way screw rod outside wall is connected with the clamping plate of screw thread, a plurality of placing grooves are seted up in the base inside, a plurality of limit frame are fixedly connected in the base inside, and the base outside is provided with the cover plate. The utility model discloses in the process of actual use, the fixed plate support two -way screw rod and limit rod of base top, put the sealing strip into the placing groove of base after cover cover plate, and make two -way screw rod rotate to drive the clamping plate sliding along the limit rod, and cooperate the clamping of limit frame, and the inner groove corresponds with the placing groove to ensure the stability of sealing strip, and the cooperation solves the problem that traditional device is not fixed, and the test efficiency of multiple groups is low, realizes the firm clamping of multiple groups of sealing strip, promotes the test precision and efficiency, satisfies the demand of batch abrasion test.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip wear testing technology, specifically to sealing strip wear testing fixture. Background Technology

[0002] A sealing strip wear testing fixture is a testing tool specifically designed to test the wear resistance of sealing strips. Its core function is to simulate the friction scenarios of sealing strips in actual use and evaluate their durability. It typically consists of a sealing strip fixing clamp, an adjustable friction component, a wear detection module, and a rotation speed. During use, the sealing strip is fixed, and the pressure, rotation speed, and friction duration of the friction component are adjusted to simulate the wear process during long-term use. The detection module then quantifies the degree of wear. It is compatible with sealing strip manufacturers and quality inspection agencies, enabling early prediction of sealing strip lifespan, screening of qualified products, and prevention of sealing failure due to premature wear of the sealing strip, thus ensuring the sealing performance and quality of the final product. A search revealed that Chinese patent CN223244260U discloses a sealing strip wear testing fixture. This patent describes a method that, by setting a limiting block on the base that can abut against the first mounting seat, can more accurately simulate the relative position of the first and second contour blocks when the car door is closed, thereby improving the accuracy of the verification results. The base includes a frame with a receiving cavity and a partition that divides the receiving cavity into an upper cavity and a lower cavity. The frame is provided with a door for opening and closing the upper cavity, and the drive unit is shielded in the lower cavity. This design improves the overall aesthetics of the testing fixture and also better protects the drive unit. This solution can achieve the basic function of sealing strip wear testing, but it still has obvious defects in terms of testing efficiency, flexibility and stability. The sealing strip fixing and batch testing capabilities are insufficient. This solution does not mention the structural design for simultaneous testing of multiple sets of sealing strips. Only one set of sealing strips can be fixed at a time, which is difficult to meet the efficiency requirements in batch quality inspection scenarios. In order to solve this technical problem, this utility model proposes a sealing strip wear testing fixture. Utility Model Content

[0003] (a) Technical problems to be solved This solution can achieve the basic function of sealing strip wear testing, but it still has obvious defects in terms of testing efficiency, flexibility and stability. The sealing strip fixing and batch testing capabilities are insufficient. This solution does not mention the structural design for simultaneous testing of multiple sets of sealing strips. Only one set of sealing strips can be fixed at a time, which is difficult to meet the efficiency requirements in batch quality inspection scenarios. In order to solve this technical problem, this utility model proposes a sealing strip wear testing fixture.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a sealing strip wear test fixture, comprising a base plate, a base provided on the top of the base plate, fixing plates fixedly connected to both ends of the top of the base, a bidirectional screw rod rotatably connected between the two fixing plates, a clamping plate threaded to the outer wall of the bidirectional screw rod, multiple placement slots opened inside the base, multiple limiting frames fixedly connected inside the base, and a cover plate provided outside the base, with multiple inner grooves opened inside the cover plate.

[0005] Preferably, the outer wall of the base is fixedly connected with a plurality of limiting frames, the limiting frames being located outside the placement groove, and the inner groove corresponding to the placement groove.

[0006] Preferably, a support frame is fixedly connected to the top of the base plate, a motor is fixedly connected to the top of the support frame, a circular plate is fixedly connected to the output shaft of the motor, a pull rod is rotatably connected to the outer wall of the circular plate, and the other side of the pull rod is rotatably connected to the bottom of the base.

[0007] Preferably, a pair of sliders are fixedly connected to the bottom of the base, and a pair of sliding groove plates are fixedly connected to the top of the base plate, with the sliders slidably connected to the outer wall of the sliding groove plates.

[0008] Preferably, a bracket is fixedly connected to the top of the base plate, three sliding rods are slidably connected inside the bracket, a counterweight is fixedly installed on the top of the sliding rod, a locking screw is threaded inside the bracket, and a friction head is provided at the bottom of the sliding rod, the friction head is fixedly installed on the sliding rod by screws.

[0009] Preferably, a limiting rod is fixedly connected between the two fixing plates, the clamping plate is slidably connected to the outer wall of the limiting rod, a pair of handles are fixedly connected to the top of the cover plate, a handle is fixedly connected to one end of the bidirectional screw, and a controller is provided on the top of the base plate.

[0010] (III) Beneficial Effects This utility model provides a fixture for testing the wear of sealing strips. It has the following beneficial effects: (1) The fixed plate at the top of the base supports the double screw and the limiting rod. After the sealing strip is placed in the placement groove of the base, the cover plate is put on. Turn the handle two to make the double screw rotate, and drive the clamping plate to slide along the limiting rod. The limiting frame clamps the cover plate. The inner groove and the placement groove correspond to ensure the stability of the sealing strip. This combination solves the problems of unstable fixing and low efficiency of multiple tests in traditional devices, realizes the firm clamping of multiple sealing strips, improves the test accuracy and efficiency, and meets the needs of batch wear test.

[0011] (2) The support frame fixes the motor, which drives the circular plate to rotate. The base is pulled by the pull rod, and the slider slides along the slide plate to ensure stable reciprocating motion. The pressure of the slide rod on the support can be changed by adjusting the counterweight. The position is locked by the locking screw. The friction head is fixed to the bottom of the slide rod by the screw. This combination solves the problems of unstable motion and single wear pressure of traditional devices, realizes stable reciprocating motion of the base and wear test under multiple pressure conditions, improves the reliability and diversity of the test, and meets the needs of different wear resistance evaluation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the base of this utility model; Figure 3 This is a schematic diagram of the top structure of the base of this utility model; Figure 4 This is a schematic diagram of the internal structure of the bracket of this utility model.

[0013] In the diagram: 1. Base plate; 2. Base; 3. Fixing plate; 4. Two-way lead screw; 5. Limiting rod; 6. Clamping plate; 7. Placement slot; 8. Limiting frame; 9. Cover plate; 10. Handle 1; 11. Inner groove; 12. Handle 2; 13. Support frame; 14. Motor; 15. Circular plate; 16. Pull rod; 17. Slider; 18. Slide plate; 19. Bracket; 20. Locking screw; 21. Slide rod; 22. Counterweight; 23. Friction head; 24. Screw; 25. Controller. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figure 1-4 This utility model provides a technical solution: Example 1: A sealing strip wear test fixture includes a base plate 1, a base 2 on top of the base plate 1, fixed plates 3 fixedly connected to both ends of the top of the base 2, a bidirectional screw rod 4 rotatably connected between the two fixed plates 3, a clamping plate 6 threadedly connected to the outer wall of the bidirectional screw rod 4, multiple placement slots 7 inside the base 2, multiple limiting frames 8 fixedly connected inside the base 2, a cover plate 9 outside the base 2, multiple inner grooves 11 inside the cover plate 9, multiple limiting frames 8 fixedly connected to the outer wall of the base 2, the limiting frames 8 are located outside the placement slots 7, and the inner grooves 11 correspond to the placement slots 7, a limiting rod 5 fixedly connected between the two fixed plates 3, the clamping plate 6 slidably connected to the outer wall of the limiting rod 5, a pair of handles 10 fixedly connected to the top of the cover plate 9, a handle 22 fixedly connected to one end of the bidirectional screw rod 4, and a controller 25 on the top of the base plate 1.

[0016] Place the sealing strip to be tested into the placement slot 7 of the base 2. Multiple placement slots 7 can accommodate multiple sets of samples at the same time, thereby improving testing efficiency. Then cover the cover plate 9. The inner groove 11 of the cover plate 9 corresponds one-to-one with the placement slot 7 to ensure the stability of the sealing strip position. Then turn the handle 12 to drive the bidirectional screw 4 to rotate. The bidirectional screw 4 drives the two clamping plates 6 to slide along the limiting rod 5 towards the middle through the thread transmission, and finally clamps and fixes the cover plate 9 to the base 2, thereby completing the clamping operation of the sealing strip.

[0017] Example 2: The difference between this example and Example 1 is that, in this example, a support frame 13 is fixedly connected to the top of the base plate 1, a motor 14 is fixedly connected to the top of the support frame 13, a circular plate 15 is fixedly connected to the output shaft of the motor 14, a pull rod 16 is rotatably connected to the outer wall of the circular plate 15, the other side of the pull rod 16 is rotatably connected to the bottom of the base 2, a pair of sliders 17 are fixedly connected to the bottom of the base 2, a pair of sliding groove plates 18 are fixedly connected to the top of the base plate 1, and the sliders 17 are slidably connected to the outer wall of the sliding groove plates 18. A bracket 19 is fixedly connected to the top of the base plate 1, three sliding rods 21 are slidably connected inside the bracket 19, a counterweight 22 is fixedly installed on the top of the sliding rods 21, a locking screw 20 is threaded inside the bracket 19, and a friction head 23 is provided at the bottom of the sliding rod 21, and the friction head 23 is fixedly installed on the sliding rod 21 by screws 24.

[0018] Start the motor 14, whose output shaft drives the circular plate 15 to rotate. The circular plate 15 pulls the base 2 to make reciprocating linear motion through the pull rod 16. The slider 17 at the bottom of the base 2 slides along the slide plate 18 to ensure stable motion direction. Adjust the counterweight of the slide rod 21 according to the test requirements. By adjusting the number or position of the counterweight block 22, determine the pressure of the friction head 23 on the sealing strip. Then tighten the locking screw 20 to lock the position of the slide rod 21. The friction head 23 is fixed to the bottom of the slide rod 21 by the screw 24. With the reciprocating motion of the base 2, it continuously rubs the surface of the sealing strip below. After running for a period of time, stop the equipment, remove the cover plate 9 and the sealing strip, and evaluate its wear resistance by observing and measuring the wear degree of the sealing strip. If multiple sets of comparative tests are required, the friction head 23 of different specifications can be replaced or the counterweight block 22 can be adjusted. Repeat the above process.

[0019] Working principle: First, the sealing strip to be tested is placed into the placement slot 7 of the base 2. Multiple placement slots 7 can hold multiple sets of samples simultaneously to improve testing efficiency. Then, the cover plate 9 is closed, with the inner groove 11 of the cover plate 9 corresponding to the placement slot 7 to ensure the stability of the sealing strip position. Next, the handle 12 is turned to drive the bidirectional lead screw 4 to rotate. The bidirectional lead screw 4 pushes the two clamping plates 6 along the limiting rod 5 to move towards the middle through thread transmission, finally clamping and fixing the cover plate 9 to the base 2, completing the clamping of the sealing strip. The motor 14 is started, and the output shaft of the motor 14 drives the circular plate 15 to rotate. The circular plate 15 pulls the base 2 to make reciprocating linear motion through the pull rod 16. The slider 17 at the bottom of the base 2 moves along the sliding groove plate. 18. Slide to ensure stable movement direction. At the same time, adjust the counterweight of slide rod 21 according to test requirements: determine the pressure of friction head 23 on sealing strip by adjusting the number or position of counterweight block 22, and then tighten the locking screw 20 to lock the position of slide rod 21; friction head 23 is fixed to the bottom of slide rod 21 by screw 24. With the reciprocating movement of base 2, it continuously rubs the surface of sealing strip below. After running for a period of time, stop the equipment, remove cover plate 9 and sealing strip, and evaluate its wear resistance by observing and measuring the wear degree of sealing strip. If multiple sets of comparative tests are required, friction head 23 of different specifications can be replaced or counterweight block 22 can be adjusted, and the above process can be repeated.

[0020] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail (motor model: 39BYG001; electric actuator model: XTL100-500-24).

[0021] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A fixture for testing the wear of sealing strips, characterized in that: Includes a base plate (1), a base (2) is provided on the top of the base plate (1), a fixing plate (3) is fixedly connected to both ends of the top of the base (2), a two-way screw rod (4) is rotatably connected between the two fixing plates (3), a clamping plate (6) is threadedly connected to the outer wall of the two-way screw rod (4), a plurality of placement slots (7) are opened inside the base (2), a plurality of limiting frames (8) are fixedly connected inside the base (2), a cover plate (9) is provided on the outside of the base (2), and a plurality of inner grooves (11) are opened inside the cover plate (9).

2. The sealing strip wear testing fixture according to claim 1, characterized in that: The outer wall of the base (2) is fixedly connected with multiple limiting frames (8), the limiting frames (8) are located outside the placement groove (7), and the inner groove (11) corresponds to the placement groove (7).

3. The sealing strip wear testing fixture according to claim 2, characterized in that: A support frame (13) is fixedly connected to the top of the base plate (1), a motor (14) is fixedly connected to the top of the support frame (13), a circular plate (15) is fixedly connected to the output shaft of the motor (14), a pull rod (16) is rotatably connected to the outer wall of the circular plate (15), and the other side of the pull rod (16) is rotatably connected to the bottom of the base (2).

4. The sealing strip wear testing fixture according to claim 3, characterized in that: A pair of sliders (17) are fixedly connected to the bottom of the base (2), and a pair of sliding plates (18) are fixedly connected to the top of the base plate (1), with the sliders (17) slidably connected to the outer wall of the sliding plates (18).

5. The sealing strip wear testing fixture according to claim 4, characterized in that: The base plate (1) is fixedly connected to the top of the bracket (19), and three slide rods (21) are slidably connected inside the bracket (19). A counterweight (22) is fixedly installed on the top of the slide rod (21). A locking screw (20) is threaded inside the bracket (19). A friction head (23) is provided at the bottom of the slide rod (21). The friction head (23) is fixedly installed on the slide rod (21) by screws (24).

6. The sealing strip wear testing fixture according to claim 5, characterized in that: A limiting rod (5) is fixedly connected between the two fixed plates (3). The clamping plate (6) is slidably connected to the outer wall of the limiting rod (5). A pair of handles (10) are fixedly connected to the top of the cover plate (9). A handle (12) is fixedly connected to one end of the bidirectional screw (4). A controller (25) is provided on the top of the base plate (1).

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