A sealing ring torsion test device

Abstract

The present application relates to a sealing ring torsion test device, which relates to the technical field of sealing ring testing and includes a first connector and a second connector. The first connector is provided with a receiving groove for receiving a sealing ring, and the second connector is provided with a through hole. The first connector is also provided with a through rod, which extends through the through hole and is rotatably connected to the second connector via a first bearing. The through rod is also provided with a fixing member and a second bearing, which is disposed between the fixing member and the first bearing. The rotating surface formed by the first bearing is perpendicular to the rotating surface formed by the second bearing. The present application has the advantage of good concentricity.

Description

Technical Field

[0001] The present application relates to the technical field of sealing ring testing, and in particular to a sealing ring torsion testing device. Background Art

[0002] The seal ring is the most critical sealing component in a bulldozer's track link. Not only are seal rings expensive, but they also place extremely stringent demands on the seals in the mounting fixtures. Failure of the seal ring accelerates wear of the track link, ultimately leading to failure. During operation, the seal rings experience uneven compression and wear. Furthermore, when the main engine turns, the track is subjected to lateral forces that increase and decrease the compression of the left and right seal rings, exacerbating the uneven wear. This significantly shortens the seal ring's service life and rapidly shifts from elastic deformation to permanent deformation, creating leaks and continuous oil leakage. Consequently, existing seal ring torsion testing devices suffer from poor concentricity. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, one of the purposes of this application is to provide a sealing ring torsion test device, which has the advantage of better concentricity.

[0004] The above-mentioned purpose of this application is achieved through the following technical solutions:

[0005] A sealing ring torsion test device includes a connecting member 1 and a connecting member 2. The connecting member 1 is provided with a receiving groove, which is used to receive the sealing ring. The connecting member 2 is provided with a through-hole. The connecting member 1 is also provided with a through-hole rod, which passes through the through-hole and is rotatably connected to the connecting member 2 through a bearing 1. The through-hole rod is also provided with a fixing member and a bearing 2. The bearing 2 is arranged between the fixing member and the bearing 1. The rotating surface formed by the bearing 1 and the rotating surface formed by the bearing 2 are perpendicular to each other.

[0006] By adopting the above technical solution, during use, due to the arrangement of bearing one and bearing two, and the perpendicularity of the rotating surfaces formed by bearing one and bearing two, a good positioning effect can be maintained in both the radial and axial directions during the rotation process, thereby achieving better concentricity.

[0007] In a preferred example, the present application can be further configured as follows: a pouring hole is further provided on the connecting member 1, and the pouring hole is communicated with the receiving groove.

[0008] By adopting the above technical solution, the injection of lubricating oil can simulate actual use conditions to facilitate observation of whether there is leakage.

[0009] In a preferred example, the present application can be further configured as follows: the fixing part includes a fixing nut and a fixing cap, the fixing cap is sleeved on the protruding rod, one end of the fixing cap is against the second bearing, and the other end is against the fixing nut, and the fixing nut is threadedly connected to the protruding rod.

[0010] By adopting the above technical solution and arranging the fixing nut and the fixing cap, a good fixing effect can be achieved on the bearing 2.

[0011] In a preferred example, the present application can be further configured as follows: the connector 2 is detachably connected to the connector 3, and the connector 3 is provided with a receiving cavity for receiving the fixing member.

[0012] By adopting the above technical solution, the presence of the accommodating cavity makes it possible to accommodate the fixing member, thereby reducing the probability of damage to the fixing member.

[0013] In a preferred example, the present application can be further configured as follows: a guide hole is also provided on the connecting piece 1, one end of the guide hole is connected to the accommodating groove, and the other end is connected to the accommodating cavity.

[0014] By adopting the above technical solution, the presence of the guide hole allows the lubricating oil to enter the accommodating cavity through the guide hole during use, lubricating bearing one and bearing two, thereby greatly extending the service life of bearing one and bearing two.

[0015] In a preferred example, the present application can be further configured as follows: the second connector and the third connector are sealed and connected.

[0016] By adopting the above technical solution, the second connector and the third connector are sealed so as to reduce the probability of lubricating oil leaking from the connection.

[0017] In a preferred example, the present application can be further configured as follows: a sealing member is further provided in the receiving groove, and the sealing member and the connecting member abut against each other to form a seal.

[0018] By adopting the above technical solution, the presence of the seal prevents lubricating oil from leaking from the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of this application.

[0020] Figure numerals: 1. Connector 1; 11. Accommodating groove; 12. Penetrating rod; 13. Bearing 1; 14. Bearing 2; 15. Sealing member; 16. Diversion hole; 17. Infusion hole; 2. Connector 2; 3. Connector 3; 31. Accommodating chamber; 32. Sealing groove; 4. Fixing member; 41. Fixing nut; 42. Fixing cap. DETAILED DESCRIPTION

[0021] The present application is further described in detail below with reference to the accompanying drawings.

[0022] Reference Figure 1 , is a sealing ring torsion test device disclosed in this application, including a connecting piece 1, a connecting piece 2 and a connecting piece 3, the connecting piece 1 is provided with a receiving groove 11 and a penetration rod 12, the penetration rod 12 and the receiving groove 11 are concentrically arranged, and the receiving groove 11 is used to accommodate the sealing ring.

[0023] Connecting member 2 is provided with an exit hole for the exit rod 12 to pass through. The exit rod 12 is provided with two bearings 13. The exit rod 12 is rotatably connected to connecting member 2 via bearings 13. Bearings 13 are roller bearings. The exit rod 12 is also provided with bearing 2 14 and a fixing member 4. Bearing 2 14 is a ball bearing. The fixing member 4 includes a fixing nut 41 and a fixing cap 42. Bearing 2 14 is sleeved on the exit rod 12 and located between the fixing cap 42 and bearing 1 13. The fixing nut 41 is threadedly connected to the exit rod 12 to secure the fixing cap 42. The rotating surface formed by bearing 13 is perpendicular to the rotating surface formed by bearing 2 14. Bearing 2 14 contacts the rotating pair of bearing 1 13 located above.

[0024] Connector three 3 and connector two 2 are detachably connected. Connector three 3 is provided with a receiving cavity 31 for accommodating the fixing member 4. Connector three 3 is also provided with a sealing groove 32. An O-ring is provided in the sealing groove 32 to achieve sealing between connector two 2 and connector three 3.

[0025] Connector 1 is provided with an infusion hole 17 and a flow guide hole 16. The infusion hole 17 is connected to the receiving groove 11. One end of the flow guide hole 16 is connected to the receiving groove 11 (either directly or indirectly; indirect connection means connection with the infusion hole 17), and the other end is connected to the receiving chamber 31. A seal 15 is also provided within the receiving groove 11. The seal 15 abuts against the connector 2 and forms a seal. The seal 15 can be a mechanical seal or a sealing ring. In this embodiment, it is a mechanical seal. In this embodiment, the flow guide hole 16 is directly connected to the receiving groove 11, and the connection point is higher than the chamber formed by the sealing ring to be tested and the receiving groove 11.

[0026] The implementation principle of this embodiment is as follows: when in use, the sealing ring to be tested is placed in the receiving groove 11, and then the bearing 13 and the bearing 2 14 are installed and fixed by the fixing member 4. In use, the filling hole 17 is located at the bottom, and the lubricating oil is poured into the chamber formed by the sealing ring to be tested and the receiving groove 11 through the filling hole 17. Since the connection point between the guide hole 16 and the receiving groove 11 is higher than the chamber formed by the sealing ring to be tested and the receiving groove 11, the air in the chamber will be discharged along the guide hole 16 during this process. When the chamber is filled with lubricating oil, the lubricating oil will rise along the guide hole 16 to lubricate the bearing 13 and / or the bearing 2 14. In this process, Since the lubricating oil needs to overcome pressure to rise, the sealing effect is detected by observing whether the chamber is leaking. Subsequently, the connector three 3 and the connector two 2 are connected to form a seal, and a pressure sensor is set in the sealed chamber (such as the accommodating chamber 31) to detect the pressure change, so that a better test detection effect of the sealing leakage can be achieved. During the test, the injection hole 17 is periodically pressurized to perform leakage measurement, that is, the lubricating oil is injected through the injection hole 17, and the pressure is detected by the pressure sensor. If the pressure change meets the standard, the lubricating oil is extracted through the injection hole 17 to restore the pressure to the pressure before the pressurization.

[0027] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sealing ring torsion test device, characterized by: The invention comprises a connecting member 1 (1) and a connecting member 2 (2), wherein the connecting member 1 (1) is provided with a receiving groove (11), the receiving groove (11) is used to receive a sealing ring, the connecting member 2 (2) is provided with a through hole, the connecting member 1 (1) is also provided with a through rod (12), the through rod (12) passes through the through hole and is rotatably connected to the connecting member 2 (2) through a bearing 1 (13), the through rod (12) is also provided with a fixing member (4) and a bearing 2 (14), the bearing 2 (14) is arranged between the fixing member (4) and the bearing 1 (13), the rotating surface formed by the bearing 1 (13) and the rotating surface formed by the bearing 2 (14) are perpendicular to each other; the connecting member 1 (1) is also provided with a pouring hole (17), the pouring hole (18) is provided with a through rod (12) and the through rod (18) is provided with a through rod (18 ... The injection hole (17) is connected to the accommodating groove (11); the fixing member (4) includes a fixing nut (41) and a fixing cap (42), the fixing cap (42) is sleeved on the protruding rod (12), one end of the fixing cap (42) is against the bearing 2 (14), and the other end is against the fixing nut (41), and the fixing nut (41) is threadedly connected to the protruding rod (12); the connecting member 2 (2) is also detachably connected to the connecting member 3 (3), and the connecting member 3 (3) is provided with an accommodating cavity (31), and the accommodating cavity (31) is used to accommodate the fixing member (4); the connecting member 1 (1) is also provided with a guide hole (16), one end of the guide hole (16) is connected to the accommodating groove (11) through a tube, and the other end is connected to the accommodating cavity (31).

2. A sealing ring torsion test device according to claim 1, characterized in that: The second connecting member (2) and the third connecting member (3) are sealed and connected.

3. The sealing ring torsion test device according to claim 2, characterized in that: A sealing member (15) is also provided in the receiving groove (11), and the sealing member (15) and the second connecting member (2) abut against each other to form a seal.

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