Friction force testing equipment for rotary motion rubber sealing element

Abstract

The utility model discloses friction force testing equipment for a rotary rubber sealing element, which relates to the technical field of friction force testing and comprises a data acquisition system and a bottom plate. A driving motor is connected into the bottom plate, the driving end of the driving motor is connected with a first connecting shaft, and the end, away from the driving motor, of the first connecting shaft is connected with a driving gear. The driving motor drives the driving gear, the driving gear drives the driven gear to rotate, the placing mechanism is used for placing the rubber sealing element, the pressing mechanism is used for applying pressure to the rubber sealing element, the pressing handle on the pressing block drives the pressing block to extrude the spring, and the friction protrusion on the connecting block is aligned with the sealing element. The sealing element on the rotating plate is extruded and rubbed, the equipment can simulate dynamic movement and pressure conditions experienced by the rubber sealing element in practical application, the pressure applied to the sealing element can be accurately controlled by pressing the handle, and the consistency and repeatability of test results are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of friction force testing, in particular to a friction force testing device for a rotating rubber seal Background Technique

[0002] The friction force testing device for rotating rubber seals is mainly used to evaluate the friction performance of rubber seals during rotational motion, including the friction coefficient, wear rate, and durability. By testing seals with different designs and sizes, the design of the seals can be optimized to improve their performance and lifespan. During the production process, it is used to detect the quality of rubber seals to ensure that they meet specific performance standards. Such testing devices are very important for rubber seal manufacturers, the automotive industry, the aerospace industry, the oil and chemical industries, and other fields that use rotating seals. Through these tests, the reliability and safety of the seals in actual applications can be ensured, while reducing maintenance costs and extending the service life of the equipment;

[0003] Chinese Patent Authorization Publication No. CN216361761U, titled "A Friction Force Testing Device for Rotating Rubber Seals", includes a power mechanism, a test rotating shaft, and a seal testing mechanism; the output end of the power mechanism is connected to the test rotating shaft, and no less than one set of installation grooves are opened on the test rotating shaft, and the seal to be tested is sleeved in the installation grooves; the seal testing mechanism includes a seal housing and a dynamometer torque, the seal housing is a circular sleeve structure, and its inner end face is a friction surface. The device of the utility model can accurately test the rotational friction force of corresponding specification seals during operation, and solves the technical problem that the friction force of sealed products in the form of curved surface contact cannot be measured under actual working conditions;

[0004] The deficiencies of the above solution are as follows: Although the above solution can measure the friction force, it cannot perform friction tests on different positions of the seal, cannot comprehensively evaluate the friction performance of the seal at different positions, and cannot detect quality problems that may occur in specific areas of the seal, such as uneven wear or material defects. Moreover, the seal of the above device cannot rotate during the test, and cannot truly simulate the dynamic motion of the seal in actual application, resulting in the technical problem that the test results do not match the actual application situation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a friction force testing device for a rotating rubber seal, so as to solve the technical problems in the prior art that the friction test cannot be performed on different positions of the seal, the friction performance of the seal at different positions cannot be comprehensively evaluated, and the seal cannot rotate during the test, and cannot truly simulate the dynamic motion of the seal in actual application, resulting in the test results not matching the actual application situation.

[0006] The technical problem to be solved by the present utility model can be achieved through the following technical solutions:

[0007] A friction force testing device for a rotary motion rubber seal includes a data acquisition system and a bottom plate;

[0008] A driving motor is connected inside the bottom plate. The driving end of the driving motor is connected to a first connecting shaft. The end of the first connecting shaft away from the driving motor is connected to a driving gear. A driven gear is meshed and connected to one side of the driving gear. Second connecting shafts are connected to both the driving gear and the driven gear. The ends of the second connecting shafts away from the driving gear and the driven gear are both connected to a placement mechanism;

[0009] A support frame is connected to the bottom plate. A pressing mechanism is connected to the support frame. The pressing mechanism includes two connecting blocks. A pressing block is slidably connected inside the support frame. A spring is connected between the pressing block and the support frame. A sliding mechanism is connected to the pressing block.

[0010] As a further scheme of the present utility model: Each of the placement mechanisms includes a rotating plate. A fixing rod is connected to the rotating plate. A sensor is connected inside the fixing rod. The sensor is cooperatively arranged with the data acquisition system. Multiple groups of sliding grooves are provided on the rotating plate. Two first sliders are connected to each group of sliding grooves. The first sliders are electric sliders.

[0011] As a further scheme of the present utility model: A pressing handle is connected to the pressing block.

[0012] As a further scheme of the present utility model: The sliding mechanism includes two sliding rods. The two sliding rods are connected to the pressing block. The ends of the two sliding rods away from the pressing block are connected to a second slider. The two connecting blocks are respectively connected to the two second sliders.

[0013] As a further scheme of the present utility model: Friction protrusions are provided on the connecting blocks.

[0014] As a further scheme of the present utility model: A connecting mechanism is provided between the second slider and the connecting block. The connecting mechanism includes a plugging hole and a plugging block. The plugging hole is arranged on the second slider. The plugging block is connected to the connecting block. The plugging hole and the plugging block are cooperatively arranged.

[0015] The beneficial effects of the present utility model:

[0016] 1. In this utility model, the driving motor drives the driving gear, and the driving gear drives the driven gear to rotate. The placing mechanism is used to place the rubber seal, and the pressing mechanism is used to apply pressure to the rubber seal. By driving the pressing handle on the pressing block to drive the pressing block to squeeze the spring, the friction protrusions on the connecting block are aligned with the seal, and the seal on the rotating plate is squeezed and rubbed. The device can simulate the dynamic motion and pressure conditions that the rubber seal experiences in actual applications. By pressing the handle, the pressure applied to the seal can be precisely controlled to ensure the consistency and repeatability of the test results.

[0017] 2. In this utility model, the second slider can slide on the sliding rod, which is convenient for rubbing seals at different positions. Seals at different positions can be tested, increasing the applicability and flexibility of the device. The device can adapt to seals of different sizes and shapes, and only needs to adjust the position of the second slider. The second slider and the connecting block are connected by a connecting mechanism, which includes a plugging hole and a plugging block, ensuring the stable connection between the second slider and the connecting block, and also facilitating the disassembly of the second slider and the connecting block. Through a simple sliding mechanism, the design of the plugging hole and the plugging block is convenient for the disassembly of the second slider and the connecting block, facilitating maintenance, cleaning or replacement of components. Brief Description of the Drawings

[0018] The following further describes this utility model in conjunction with the drawings.

[0019] Figure 1 is the schematic diagram of the overall structure of this utility model;

[0020] Figure 2 is the schematic diagram of the rotating plate structure in this utility model;

[0021] Figure 3 is the schematic diagram of the second slider structure in this utility model;

[0022] Figure 4 is the schematic diagram of the connecting block structure in this utility model.

[0023] In the figure: 1. Bottom plate; 2. First connecting shaft; 3. Driving gear; 4. Second connecting shaft; 5. Rotating plate; 6. First slider; 7. Support frame; 8. Spring; 9. Pressing block; 10. Sliding rod; 11. Second slider; 12. Connecting block; 13. Friction protrusion; 14. Chute; 15. Fixed rod; 16. Plugging hole; 17. Plugging block; 18. Driven gear. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-4 shown, a friction force testing device for a rotary motion rubber seal includes a data acquisition system and a bottom plate 1. A driving motor is connected inside the bottom plate 1. The driving end of the driving motor is connected to a first connecting shaft 2. One end of the first connecting shaft 2 away from the driving motor is connected to a driving gear 3. A driven gear 18 is meshed and connected to one side of the driving gear 3. Second connecting shafts 4 are connected to both the driving gear 3 and the driven gear 18. One end of each second connecting shaft 4 away from the driving gear 3 and the driven gear 18 is connected to a placing mechanism. Each placing mechanism includes a rotating plate 5. A fixing rod 15 is connected to the rotating plate 5. A sensor is connected inside the fixing rod 15. The sensor is arranged in cooperation with the data acquisition system. A plurality of groups of sliding grooves 14 are provided on the rotating plate 5. Two first sliders 6 are connected to each group of sliding grooves 14. The first slider 6 is an electric slider;

[0026] A support frame 7 is connected to the bottom plate 1. A pressing mechanism is connected to the support frame 7. The pressing mechanism includes two connecting blocks 12. A pressing block 9 is slidably connected inside the support frame 7. A pressing handle is connected to the pressing block 9. A spring 8 is connected between the pressing block 9 and the support frame 7. A sliding mechanism is connected to the pressing block 9. The sliding mechanism includes two sliding rods 10. The two sliding rods 10 are connected to the pressing block 9. One end of the two sliding rods 10 away from the pressing block 9 is connected to a second slider 11. The two connecting blocks 12 are respectively connected to the two second sliders 11. Friction protrusions 13 are provided on the connecting blocks 12;

[0027] A connecting mechanism is provided between the second slider 11 and the connecting block 12. The connecting mechanism includes a plugging hole 16 and a plugging block 17. The plugging hole 16 is arranged on the second slider 11. The plugging block 17 is connected to the connecting block 12. The plugging hole 16 is arranged in cooperation with the plugging block 17.

[0028] Working principle of the utility model: When the device is started, the driving motor transmits power to the driving gear 3 through the first connecting shaft 2. The driving gear 3 meshes with the driven gear 18, thereby driving the driven gear 18 to rotate. The placing mechanism is used to place the rubber seal. The placing mechanism includes a rotating plate 5. A fixing rod 15 is connected to the rotating plate 5 for fixing the rubber seal to be tested. Multiple groups of sliding grooves 14 are provided on the rotating plate 5. Two first electric sliders 6 are connected to each group of sliding grooves 14. The first slider 6 is used in cooperation with the fixing rod 15 to fix the seal. The seal is sleeved on the fixing rod 15 and the two first sliders 6. By moving the first slider 6, the elasticity of the seal is tested. The pressing mechanism connected to the support frame 7 is used to apply a certain pressure to the rubber seal. The pressing handle on the pressing block 9 drives the pressing block 9 to squeeze the spring 8, aligning the friction protrusion 13 on the connecting block 12 with the seal, and squeezing and rubbing the seal on the rotating plate 5;

[0029] The second slider 11 can slide on the sliding rod 10, facilitating the rubbing of seals at different positions, enabling the testing of seals at different positions, increasing the applicability and flexibility of the device. The device can adapt to seals of different sizes and shapes, only by adjusting the position of the second slider 11. The second slider 11 and the connecting block 12 are connected through a connecting mechanism. The connecting mechanism includes a plugging hole 16 and a plugging block 17, ensuring the stable connection between the second slider 11 and the connecting block 12 and also facilitating the disassembly of the second slider 11 and the connecting block 12;

[0030] During the test, the driving motor is started. Through the meshing of the driving gear 3 and the driven gear 18, the rubber seal rotates on the placing mechanism. At the same time, the pressing mechanism applies pressure to simulate the working conditions of the seal in actual application. The sensor and data acquisition system measure and record parameters such as friction force and pressure in real time;

[0031] The design of this device aims to simulate the rotational movement and force conditions of rubber seals in actual application, facilitating the research and improvement of the performance of seals.

[0032] The above has described a detailed embodiment of the utility model, but the content is only the preferred embodiment of the utility model and cannot be considered as limiting the scope of implementation of the utility model. All equal changes and improvements made according to the scope of application of the utility model should still fall within the patent coverage scope of the utility model.

Claims

1. A friction force testing device for a rotary motion rubber seal, comprising a data acquisition system and a bottom plate (1); characterized in that: A driving motor is connected inside the bottom plate (1), a first connecting shaft (2) is connected to the driving end of the driving motor, a driving gear (3) is connected to the end of the first connecting shaft (2) away from the driving motor, a driven gear (18) is meshed and connected to one side of the driving gear (3), second connecting shafts (4) are connected to both the driving gear (3) and the driven gear (18), and placing mechanisms are connected to the ends of the second connecting shafts (4) away from the driving gear (3) and the driven gear (18). A support frame (7) is connected to the bottom plate (1), a pressing mechanism is connected to the support frame (7), the pressing mechanism includes two connecting blocks (12), a pressing block (9) is slidably connected inside the support frame (7), a spring (8) is connected between the pressing block (9) and the support frame (7), and a sliding mechanism is connected to the pressing block (9).

2. The friction force testing device for a rotary motion rubber seal according to claim 1, wherein Each placing mechanism includes a rotating plate (5), a fixing rod (15) is connected to the rotating plate (5), a sensor is connected inside the fixing rod (15), the sensor is arranged in cooperation with the data acquisition system, multiple groups of sliding grooves (14) are provided on the rotating plate (5), and two first sliders (6) are connected to each group of sliding grooves (14), and the first sliders (6) are electric sliders.

3. The friction force testing device for a rotary motion rubber seal according to claim 1, characterized in that, A pressing handle is connected to the pressing block (9).

4. A rotational movement rubber seal friction force testing device according to claim 1, characterized in that, The sliding mechanism includes two sliding rods (10), the two sliding rods (10) are connected to the pressing block (9), a second slider (11) is connected to the ends of the two sliding rods (10) away from the pressing block (9), and the two connecting blocks (12) are respectively connected to the two second sliders (11).

5. A rotational movement rubber seal friction force testing device according to claim 4, characterized in that, Friction protrusions (13) are provided on the connecting blocks (12).

6. The friction force testing device for a rotary motion rubber seal according to claim 4, characterized in that, A connecting mechanism is provided between the second slider (11) and the connecting block (12), the connecting mechanism includes a plugging hole (16) and a plugging block (17), the plugging hole (16) is arranged on the second slider (11), the plugging block (17) is connected to the connecting block (12), and the plugging hole (16) is arranged in cooperation with the plugging block (17).

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