A sealing ring tension detection device

Abstract

The utility model relates to the technical field of seal ring production, especially a tension detection device of seal ring, the upper end fixedly connected with the top plate of movable rod, the bottom end both sides of top plate are all through spring connecting the upper end of casing, the upper end of support frame is provided with pressure sensor, the upper end of pressure sensor and the bottom end of top plate contact, the bottom end both sides of top plate are all connected with the guide rod for guiding, be provided with lifting mechanism in casing, the lifting mechanism is connected with the draw hook on, the utility model discloses when the top plate moves down and drives the guide rod to move, under the direction of guide rod, make the top plate vertically move down, after the top plate vertically moves down and extrudes pressure sensor, the tension that the seal ring received is detected through pressure sensor, the movement of top plate is guided through the guide rod, make movable rod vertically move down, guarantee the top plate vertically extrudes pressure sensor, improve the accuracy of the tension detection of seal ring.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring manufacturing technology, and in particular to a sealing ring tensile testing device. Background Technology

[0002] During the manufacturing process of bearings, in order to prevent a large amount of dust, water stains, and dirt from entering the inner and outer rings of the bearing, a sealing ring is inserted between the inner and outer rings. Bearing sealing rings include metal sealing rings and rubber sealing rings. Rubber sealing rings need to be sampled and tested before use, one of the test items being the tensile strength test of the bearing sealing ring.

[0003] In the publication number CN221976621U, the upper hook rod 20 slides through the upper end wall of the detection box 10 and is fixedly connected to the positioning plate 30. Several pressure sensors 40 are fixedly connected to the upper end wall of the detection box 10 at the position corresponding to the positioning plate 30. The positioning plate 30 is fixedly connected to the stress surface of the pressure sensor 40. The pressure sensor 40 can sense the pressure applied by the upper hook rod 20 on the positioning plate 30, which facilitates real-time monitoring of the stress on the bearing seal ring.

[0004] When the hook rod moves downward to test the tension of the sealing ring, the sealing ring is pulled down and then pulls the upper hook rod. The upper hook rod pulls the positioning plate. When the sealing ring pulls the upper hook rod downward, due to the lack of guidance, the upper hook rod is prone to move in the horizontal direction, thereby reducing the tension in the vertical direction and thus reducing the accuracy of the sealing ring tension test. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the upper hook rod tends to move horizontally, thereby reducing the vertical tension and consequently lowering the accuracy of sealing ring tension detection. Therefore, this invention proposes a sealing ring tension detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a tensile testing device for a sealing ring, comprising a housing with an opening on one side, a support frame fixedly connected to the upper end of the housing, a movable rod slidably inserted onto the support frame, the bottom end of the movable rod extending into the housing and detachably connected to a hook, a top plate fixedly connected to the upper end of the movable rod, the bottom ends of the top plate being connected to the upper end of the housing via springs on both sides, a pressure sensor disposed at the upper end of the support frame, the upper end of the pressure sensor contacting the bottom end of the top plate, guide rods for guidance being connected to both sides of the bottom end of the top plate, a lifting mechanism disposed inside the housing, and a pull hook connected to the lifting mechanism.

[0008] Preferably, a base plate is fixedly connected to the bottom end of the housing.

[0009] Preferably, the lifting mechanism includes a slide frame, which is fixedly connected to the housing. A movable plate is slidably connected to the slide frame, and a hook is connected to the upper end of the movable plate. A servo motor is installed in the housing, and the output end of the servo motor extends into the housing and is fixedly connected to a threaded rod that drives the movable plate to move in the vertical direction.

[0010] Preferably, a fixed frame is rotatably connected to the opening, and a transparent plate is mounted on the fixed frame.

[0011] Preferably, a handle is fixedly connected to the fixed frame.

[0012] Preferably, the transparent plate is a transparent plastic plate.

[0013] Preferably, a partition is connected to the bottom of the inner side of the shell, and a collection chamber is provided between the partition and the shell. An open box is provided in the collection chamber, and protrusions are fixedly connected to both sides of the inner wall of the open box.

[0014] Preferably, the protrusion and the open box are an integral structure.

[0015] The present invention provides a tensile testing device for sealing rings, which has the following advantages:

[0016] As the top plate moves downward, it drives the guide rod to move. Guided by the guide rod, the top plate moves vertically downward. After the top plate moves vertically downward, it squeezes the pressure sensor. The pressure sensor detects the tension on the sealing ring. The guide rod guides the movement of the top plate, causing the movable rod to move vertically downward. This ensures that the top plate squeezes the pressure sensor vertically downward, improving the accuracy of the tension detection of the sealing ring. Attached Figure Description

[0017] Figure 1 This invention provides a structural schematic diagram of a tensile testing device for a sealing ring. Figure 1 ;

[0018] Figure 2 This invention provides a structural schematic diagram of a tensile testing device for a sealing ring. Figure 2 ;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of a tensile testing device for a sealing ring proposed in this utility model;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A above.

[0021] In the diagram: 1. Shell; 2. Base plate; 3. Opening; 4. Support frame; 5. Movable rod; 6. Top plate; 7. Spring; 8. Guide rod; 9. Pressure sensor; 10. Hook; 11. Lifting mechanism; 12. Pull hook; 13. Fixed frame; 14. Transparent plate; 15. Handle; 16. Partition; 17. Collection chamber; 18. Open box; 19. Protrusion; 111. Slide rack; 112. Movable plate; 113. Servo motor; 114. Threaded rod. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-4 A tensile testing device for a sealing ring includes a housing 1, a base plate 2 fixedly connected to the bottom of the housing 1, an opening 3 on one side of the housing 1, a support frame 4 fixedly connected to the upper end of the housing 1, a movable rod 5 slidably inserted into the support frame 4, the bottom end of the movable rod 5 extending into the housing 1 and detachably connected to a hook 10, a top plate 6 fixedly connected to the upper end of the movable rod 5, the bottom ends of the top plate 6 being connected to the upper end of the housing 1 by springs 7 on both sides, a pressure sensor 9 being provided at the upper end of the support frame 4, the upper end of the pressure sensor 9 contacting the bottom end of the top plate 6, guide rods 8 for guidance being connected to both sides of the bottom end of the top plate 6, a lifting mechanism 11 being provided inside the housing 1, a pull hook 12 being connected to the lifting mechanism 11, the pull hook 12 being located directly below the hook 10.

[0024] Work process:

[0025] During the tensile test, the sealing ring is attached to the hook 10, with the bottom end of the sealing ring located below the hook 12. After the lifting mechanism 11 is started, it drives the hook 12 to move downward. After the hook 12 moves downward a certain distance, it contacts the inner ring of the sealing ring.

[0026] The hook 12 continues to move downwards, pulling the sealing ring. The sealing ring pulls the hook 10 downwards, the hook 10 pulls the movable rod 5 downwards, and the movable rod 5 pulls the top plate 6 downwards. As the top plate 6 moves downwards, it drives the guide rod 8 to move. Under the guidance of the guide rod 8, the top plate 6 moves vertically downwards. After the top plate 6 moves vertically downwards, it squeezes the pressure sensor 9. The pressure sensor 9 detects the tension on the sealing ring. The guide rod 8 guides the movement of the top plate 6, causing the movable rod 5 to move vertically downwards, ensuring that the top plate 6 squeezes the pressure sensor 9 vertically downwards, thus improving the accuracy of the tension detection of the sealing ring.

[0027] Example 2: During the vertical movement of the pull hook 12, the pull hook 12 is prone to wobbling. (Refer to...) Figure 2 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the lifting mechanism 11 includes a slide frame 111, the slide frame 111 is fixedly connected to the housing 1, a movable plate 112 is slidably connected on the slide frame 111, the upper end of the movable plate 112 is connected to a hook 12, a servo motor 113 is installed on the housing 1, the output end of the servo motor 113 extends into the housing 1 and is fixedly connected to a threaded rod 114 that drives the movable plate 112 to move in the vertical direction. After the servo motor 113 is started, it drives the threaded rod 114 to rotate. After the threaded rod 114 rotates, the movable plate 112 moves in the vertical direction. Under the guidance of the slide frame 111, the movable plate 112 moves smoothly, so that the hook 12 will not shake during the movement.

[0028] Example 3: During the tensile test of the sealing ring, the sealing ring broke and fell into the opening 3, making it inconvenient to clean. (Refer to...) Figure 2 As another preferred embodiment of this utility model, the difference from embodiment 1 is that a fixed frame 13 is rotatably connected to the opening 3, a transparent plate 14 is installed on the fixed frame 13, the transparent plate 14 is a transparent plastic plate, a handle 15 is fixedly connected to the fixed frame 13, a partition 16 is connected to the bottom of the inner side of the shell 1, a collection chamber 17 is provided between the partition 16 and the shell 1, an open box 18 is provided in the collection chamber 17, and protrusions 19 are fixedly connected to both sides of the inner wall of the open box 18. The protrusions 19 and the open box 18 are an integral structure. The collection chamber 17 limits the open box 18. The open box 18 is located below the hook 12. The broken sealing ring falls into the open box 18, which is convenient for cleaning the broken sealing ring. When there are many broken sealing rings in the open box 18, the open box 18 is lifted upward by the protrusions 19 and the open box 18 is taken out from the opening 3 for cleaning.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tensile testing device for a sealing ring, comprising a housing (1), wherein an opening (3) is provided on one side of the housing (1), characterized in that, in: A support frame (4) is fixedly connected to the upper end of the housing (1). A movable rod (5) is slidably inserted into the support frame (4). The bottom end of the movable rod (5) extends into the housing (1) and is detachably connected to a hook (10). A top plate (6) is fixedly connected to the upper end of the movable rod (5). The bottom ends of the top plate (6) are connected to the upper end of the housing (1) by springs (7). A pressure sensor (9) is provided at the upper end of the support frame (4). The upper end of the pressure sensor (9) is in contact with the bottom end of the top plate (6). Guide rods (8) for guidance are connected to the bottom ends of the top plate (6). A lifting mechanism (11) is provided inside the housing (1). A pull hook (12) is connected to the lifting mechanism (11).

2. The tensile testing device for the sealing ring according to claim 1, characterized in that, The bottom end of the housing (1) is fixedly connected to a base plate (2).

3. The tensile testing device for the sealing ring according to claim 1, characterized in that, The lifting mechanism (11) includes a slide frame (111), which is fixedly connected to the housing (1). A movable plate (112) is slidably connected to the slide frame (111). A hook (12) is connected to the upper end of the movable plate (112). A servo motor (113) is installed in the housing (1). The output end of the servo motor (113) extends into the housing (1) and is fixedly connected to a threaded rod (114) that drives the movable plate (112) to move in the vertical direction.

4. The tensile testing device for the sealing ring according to claim 1, characterized in that, A fixed frame (13) is rotatably connected to the opening (3), and a transparent plate (14) is installed on the fixed frame (13).

5. The tensile testing device for the sealing ring according to claim 4, characterized in that, A handle (15) is fixedly connected to the fixed frame (13).

6. The tensile testing device for the sealing ring according to claim 4, characterized in that, The transparent plate (14) is a transparent plastic plate.

7. The tensile testing device for the sealing ring according to claim 1, characterized in that, The bottom of the inner side of the shell (1) is connected to a partition (16), and a collection chamber (17) is provided between the partition (16) and the shell (1). An open box (18) is provided in the collection chamber (17), and protrusions (19) are fixedly connected to both sides of the inner wall of the open box (18).

8. The tensile testing device for the sealing ring according to claim 7, characterized in that, The protrusion (19) and the open box (18) are an integral structure.

Images