Sealing aging test device for multi-environment simulation

Abstract

The utility model provides a sealing aging test device for multi-environment simulation. The sealing aging test device comprises an upper end cover, a lower end cover, a gasket, a to-be-tested sealing ring and a sealing ring, the gasket is arranged between each stage of lower end cover and the upper end cover, the to-be-tested sealing ring is arranged between each stage of lower end cover and the gasket, and the sealing rings are arranged between the gasket and each stage of upper end cover and between the middle upper end cover and the middle lower end cover; the end covers are connected through bolts, and the gaskets are in interference fit connection or threaded connection with the upper end covers; the end cover center hole channel forms a first flow channel, the outer side hole channel forms a second flow channel, and flow channel isolation is achieved through a sealing ring. The aging conditions of the sealing ring under different compression amounts can be tested by adjusting the thickness of the gasket, the influence of different unbalance loading forces on the aging performance of the sealing ring can be tested by adjusting the gradient of the first end face of the gasket, and the aging conditions of the sealing ring under different working conditions can be simulated by inputting media into the two flow channels. Multiple groups of upper and lower end covers can be continuously added in the device.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transmission sealing, and particularly relates to a sealing aging test device for multi-environment simulation. Background Art

[0002] Sealing rings play a crucial role in many mechanical and hydraulic systems, and their performance directly affects the sealing performance and operating efficiency of the systems. Over time, the sealing rings may gradually age due to the influence of temperature, pressure, chemical environment or mechanical stress, resulting in changes in their physical and chemical properties. This aging may cause leakage, failure or equipment malfunctions. Through the aging test of the sealing rings, the durability and anti-aging ability of the sealing materials under different environmental conditions can be evaluated, providing an important basis for the design, material selection and maintenance strategy of the seals. This not only helps to extend the service life of the equipment, but also reduces unexpected shutdowns and maintenance costs, improving the overall safety and efficiency of the system.

[0003] Existing sealing ring aging test devices can usually only test the aging performance of sealing rings in a single medium working condition environment, cannot test the aging conditions of sealing rings under different compression amounts at the same time, nor can they test the aging conditions of sealing rings under eccentric load, so the sealing aging test results are inaccurate and limited.

[0004] Therefore, it is necessary to propose a sealing aging test device for multi-environment simulation to simulate the aging conditions of sealing rings under multiple working conditions. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model proposes a sealing aging test device for multi-environment simulation. Through the mutually independent first flow channel and second flow channel, the aging performance of the sealing ring to be tested can be tested under multiple working conditions; and by adjusting the thickness of the gasket, the aging performance of the sealing ring to be tested under different compression amounts can be realized. Also, the aging condition of the sealing ring under eccentric load can be tested by adjusting the inclination of the side wall surface in contact with the third gasket and the sealing ring to be tested, and multiple test devices can be combined by using a combined structure to conduct multiple groups of test simultaneously.

[0006] The utility model proposes a sealing aging test device for multi-environment simulation, which includes an upper end cover, a lower end cover and a gasket;

[0007] The upper end cover includes a first upper end cover, a second upper end cover and a third upper end cover;

[0008] The lower end cover includes a first lower end cover, a second lower end cover and a third lower end cover;

[0009] The gasket includes a first gasket, a second gasket and a third gasket;

[0010] The inner side wall of the first lower end cover is connected to the first side wall of the first upper end cover, the second side wall of the first upper end cover is connected to the first side wall of the second lower end cover, the second side wall of the second lower end cover is connected to the first side wall of the second upper end cover, and the second side wall of the second upper end cover is connected to the first side wall of the third lower end cover; the second side wall of the third lower end cover is connected to the inner side wall of the third upper end cover;

[0011] The first lower end cover, the second lower end cover and the third lower end cover are all provided with grooves, the first upper end cover, the second upper end cover and the third upper end cover are all provided with bosses, the groove of the first lower end cover is connected to the boss of the first upper end cover through the first gasket, and the groove of the second lower end cover is connected to the boss of the second upper end cover through the second gasket; the groove of the third lower end cover is connected to the boss of the third upper end cover through the third gasket, and the first end face of the third gasket is inclined towards the center of the gasket;

[0012] The groove end faces of the first lower end cover, the second lower end cover and the third lower end cover are provided with installation grooves for the sealing ring to be measured;

[0013] The boss end faces of the first upper end cover, the second upper end cover and the third upper end cover are all provided with sealing ring installation grooves, and the second side walls of the first upper end cover and the second upper end cover are both provided with three sealing ring installation grooves;

[0014] The first lower end cover is provided with a first medium port, a second medium port and a third medium port, the first medium port and the third medium port are symmetrically arranged, and the second medium port is located at the center of the first lower end cover;

[0015] The boss of the first upper end cover is provided with first through holes evenly distributed along the circumferential direction, a second through hole is provided at the center of the first upper end cover, and an annular groove is provided between the two sealing ring installation grooves on the outer side of the second end face of the first upper end cover;

[0016] The second lower end cover is provided with a third through hole symmetric about the center, and a fourth through hole is provided at the center of the second lower end cover;

[0017] A fourth medium port is provided at the center of the third upper end cover;

[0018] The second medium port, the fourth medium port, the second through hole and the fourth through hole are interconnected to form a first flow channel; the first medium port, the third medium port, the first through hole, the annular groove and the third through hole are interconnected to form a second flow channel.

[0019] Preferably, the connection between the first gasket and the first upper end cover, the connection between the second gasket and the second upper end cover, and the connection between the third gasket and the third upper end cover are interference fit connections or threaded connections.

[0020] Preferably, the lower end caps and upper end caps of each stage are fixed by bolts. The first lower end cap is provided with threaded holes, the third upper end cap is provided with bolt counterbore holes, and the first upper end cap, the second upper end cap, the second lower end cap, and the third lower end cap are provided with bolt through holes having the same specifications as the threaded holes of the first lower end cap.

[0021] Preferably, a seal ring to be tested is arranged in the seal ring installation groove to be tested.

[0022] Preferably, a plurality of seal rings are arranged in the seal ring installation groove.

[0023] Preferably, the plurality of seal rings include a first seal ring, a second seal ring, a third seal ring, a fourth seal ring, a fifth seal ring, a sixth seal ring, a seventh seal ring, an eighth seal ring, and a ninth seal ring. The first seal ring, the fifth seal ring, and the ninth seal ring are placed in the seal ring installation grooves on the convex platform end faces of the upper end caps, and the second seal ring, the third seal ring, the fourth seal ring, the sixth seal ring, the seventh seal ring, and the eighth seal ring are placed in the seal ring installation grooves on the second side walls of the upper end caps.

[0024] Preferably, the central axis of the first medium port or the third medium port coincides with the central axis of the third through hole.

[0025] Preferably, the first lower end cap, the third upper end cap, the gasket, the seal ring to be tested, and the seal rings can be combined into a single-group test device, and the gasket is arranged between the first upper end cap and the third lower end cap.

[0026] Compared with the prior art, the utility model has the following advantages:

[0027] 1. The multi-environment simulation seal aging test device of the utility model can simulate the aging conditions of the seal ring under different working conditions on both sides by introducing different media such as gas or liquid into the first flow channel and the second flow channel.

[0028] 2. The multi-environment simulation seal aging test device of the utility model adopts a combined end cap installation structure based on bolt connection. The upper end cap and the lower end cap structures are mutually adapted, and can be combined into multiple groups of devices for simultaneous testing. At the same time, the complexity of the device is reduced, and the test efficiency is improved.

[0029] 3. The multi-environment simulation seal aging test device of the utility model can generate compression deformation with different compression amounts of the seal ring to be tested by replacing the first gasket, the second gasket, and the third gasket with different thicknesses, so as to test the aging conditions of the seal rings with different compression amounts. It can also test the aging conditions of the seal ring under eccentric load by using the inclination of the side wall surface of the third gasket in contact with the seal ring to be tested. Brief Description of the Drawings

[0030] Figure 1 It is a cross-sectional view of the overall structure of multiple test devices of a multi-environment simulation sealed aging test device of the present utility model;

[0031] Figure 2 It is a schematic structural diagram of multiple test devices of a multi-environment simulation sealed aging test device of the present utility model;

[0032] Figure 3 It is a cross-sectional view of the overall structure of a single test device of a multi-environment simulation sealed aging test device of the present utility model;

[0033] Figure 4 It is a schematic structural diagram of the first lower end cover of a multi-environment simulation sealed aging test device of the present utility model;

[0034] Figure 5 It is a front view of the structure of the first upper end cover of a multi-environment simulation sealed aging test device of the present utility model

[0035] Figure 6 It is a rear view of the structure of the first upper end cover of a multi-environment simulation sealed aging test device of the present utility model;

[0036] Figure 7 It is a schematic structural diagram of the second lower end cover of a multi-environment simulation sealed aging test device of the present utility model;

[0037] Figure 8 It is a schematic structural diagram of the third upper end cover of a multi-environment simulation sealed aging test device of the present utility model.

[0038] Main reference numerals:

[0039] The first lower end cover 11, the first lower end cover threaded hole 111, the first medium port 112, the second medium port 113, the third medium port 114, the second lower end cover 12, the third through hole 121, the fourth through hole 122, the third lower end cover 13, the first upper end cover 21, the first through hole 211, the second through hole 212, the annular groove 213, the second upper end cover 22, the third upper end cover 23, the fourth medium port 231, the bolt counterbore 232, the first washer 31, the second washer 32, the third washer 33, the first seal ring to be tested 41, the second seal ring to be tested 42, the third seal ring to be tested 43, the first seal ring 51, the second seal ring 52, the third seal ring 53, the fourth seal ring 54, the fifth seal ring 55, the sixth seal ring 56, the seventh seal ring 57, the eighth seal ring 58, the ninth seal ring 59, the first flow channel 6, the second flow channel 7. Detailed Description of the Invention

[0040] To elaborate on the technical content, structural features, achieved objectives, and beneficial effects of the present utility model, the following will be described in detail with reference to the accompanying drawings of the specification. The following examples are used to illustrate the present utility model but do not limit the scope of the present utility model.

[0041] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] As Figures 1 to 8 shown, a multi-environment simulation sealed aging test device provided in this embodiment includes an upper end cover, a lower end cover, and a gasket.

[0044] The lower end cover includes a first lower end cover 11, a second lower end cover 12, and a third lower end cover 13.

[0045] The upper end cover includes a first upper end cover 21, a second upper end cover 22, and a third upper end cover 23.

[0046] The gasket includes a first gasket 31, a second gasket 32, and a third gasket 33.

[0047] The inner side wall of the first lower end cover 11 is connected to the first side wall of the first upper end cover 21, the second side wall of the first upper end cover 21 is connected to the first side wall of the second lower end cover 12, the second side wall of the second lower end cover 12 is connected to the first side wall of the second upper end cover 22, the second side wall of the second upper end cover 22 is connected to the first side wall of the third lower end cover 13; the second side wall of the third lower end cover 13 is connected to the inner side wall of the third upper end cover 23;

[0048] The first lower end cover 11, the second lower end cover 12, and the third lower end cover 13 are all provided with grooves, and the first upper end cover 21, the second upper end cover 22, and the third upper end cover 23 are all provided with bosses. The groove of the first lower end cover 11 is connected to the boss of the first upper end cover 21 through the first gasket 31, the groove of the second lower end cover 12 is connected to the boss of the second upper end cover 22 through the second gasket 32; the groove of the third lower end cover 13 is connected to the boss of the third upper end cover 23 through the third gasket 33, and the first end face of the third gasket 33 is inclined towards the center of the gasket.

[0049] The groove end faces of the first lower end cover 11, the second lower end cover 12, and the third lower end cover 13 are provided with installation grooves for the sealing rings to be measured.

[0050] The boss end faces of the first upper end cover 21, the second upper end cover 22, and the third upper end cover 23 are all provided with sealing ring installation grooves, and the second side walls of the first upper end cover 21 and the second upper end cover 22 are both provided with three sealing ring installation grooves.

[0051] The first lower end cover 11 is provided with a first medium port 112, a second medium port 113, and a third medium port 114. The first medium port 112 and the third medium port 114 are symmetrically arranged, and the second medium port 113 is located at the center of the first lower end cover.

[0052] The boss of the first upper end cover 21 is provided with first through holes 211 evenly distributed along the circumferential direction. A second through hole 212 is provided at the center of the first upper end cover. An annular groove 213 is provided between the two sealing ring installation grooves on the outer side of the second end face of the first upper end cover.

[0053] The second lower end cover 12 is provided with a third through hole 121 that is centrosymmetric, and a fourth through hole 122 is provided at the center of the second lower end cover 12.

[0054] A fourth medium port 231 is provided at the center of the third upper end cover 23.

[0055] The second medium port 113, the fourth medium port 231, the second through hole 212, and the fourth through hole 122 communicate with each other to form a first flow channel 6; the first medium port 112, the third medium port 113, the first through hole 211, the annular groove 213, and the third through hole 121 communicate with each other to form a second flow channel 7.

[0056] The overall structure of the present utility model is fixed by bolts. The first lower end cover 11 is provided with a threaded hole 111, the third upper end cover 23 is provided with a bolt counterbore 232, and the first upper end cover 21, the second upper end cover 22, the second lower end cover 12, and the third lower end cover 13 are provided with bolt through holes having the same specifications as the threaded hole 111 of the first lower end cover.

[0057] The thickness of the gaskets between the end caps at all levels can be different. By adjusting the thickness of the gaskets between the upper and lower end caps at all levels, the aging of the sealing ring under different compression amounts can be tested; the first end faces of the gaskets at all levels can be provided with an inclination. By adjusting the inclination to apply an eccentric load to the sealing ring to be tested, it can be used to test the influence of the eccentric load on the aging performance of the sealing ring.

[0058] In the sealing ring installation grooves of the lower end caps at all levels for the sealing ring to be tested, there are sealing rings to be tested, including the first sealing ring to be tested 41, the second sealing ring to be tested 42, and the third sealing ring to be tested 43; in the sealing ring installation grooves of the upper end caps at all levels, there are sealing rings, including the first sealing ring 51, the second sealing ring 52, the third sealing ring 53, the fourth sealing ring 54, the fifth sealing ring 55, the sixth sealing ring 56, the seventh sealing ring 57, the eighth sealing ring 58, and the ninth sealing ring 59. The first sealing ring 51, the fifth sealing ring 55, and the ninth sealing ring 59 are placed in the sealing ring installation grooves on the boss end faces of the upper end caps, and the second sealing ring 52, the third sealing ring 53, the fourth sealing ring 54, the sixth sealing ring 56, the seventh sealing ring 57, and the eighth sealing ring 58 are placed in the sealing ring installation grooves on the second side walls of the upper end caps.

[0059] The two flow channels are isolated by the sealing rings. The first sealing ring 51 and the second sealing ring 52, as well as the fifth sealing ring 55 and the sixth sealing ring 56, effectively ensure the sealing performance of the first flow channel 6. The third sealing ring 53 and the fourth sealing ring 54, as well as the seventh sealing ring 57 and the eighth sealing ring 58, effectively ensure the sealing performance of the second flow channel 7. Gas, liquid and other media can be introduced into the first flow channel 6 and the second flow channel 7, so as to simulate the aging of the sealing ring under various working conditions; when the medium in the second flow channel 7 is liquid, the second flow channel 9 is a constant pressure sealed cavity.

[0060] The following is a further detailed description through a specific test process.

[0061] During operation, the sealing ring to be tested is placed in the device, and the end caps at all levels are connected by bolts. With the bolt connection type combined installation structure between the end caps, multiple groups of upper end caps and lower end caps can be added according to requirements, and the aging of multiple groups of sealing rings can be tested simultaneously. The upper end caps and the upper end caps push the gaskets to squeeze the sealing ring to be tested, so that the sealing ring to be tested generates a predetermined compression amount deformation, and the thickness of the gasket is selected according to the compression amount of the sealing ring in the specific experiment.

[0062] Two different or identical media flow into the first flow channel 6 through the second media port 113 or the fourth media port 231 respectively, and flow into the second flow channel 7 through the first media port 112 or the third media port 114. When the second media port 113 is used as the inlet of the first flow channel 6, the fourth media port 231 is used as the outlet of the first flow channel 6. When the first media port 112 is used as the inlet of the second flow channel 7, the third media port 114 is used as the outlet of the second flow channel 7. By inputting different or identical media into the flow channels on both sides of the sealing ring to be tested, the aging conditions of the sealing ring under different environments can be simulated.

[0063] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A sealed aging test device for multi - environment simulation, characterized in that: It includes an upper end cover, a lower end cover and a gasket; The upper end cover includes a first upper end cover, a second upper end cover and a third upper end cover; The lower end cover comprises a first lower end cover, a second lower end cover and a third lower end cover; The gasket includes a first gasket, a second gasket and a third gasket; The inner side wall of the first lower end cover is connected to the first side wall of the first upper end cover, the second side wall of the first upper end cover is connected to the first side wall of the second lower end cover, the second side wall of the second lower end cover is connected to the first side wall of the second upper end cover, the second side wall of the second upper end cover is connected to the first side wall of the third lower end cover; the second side wall of the third lower end cover is connected to the inner side wall of the third upper end cover; The first lower end cover, the second lower end cover and the third lower end cover are all provided with a groove, and the first upper end cover, the second upper end cover and the third upper end cover are all provided with a boss, the groove of the first lower end cover is connected to the boss of the first upper end cover through the first gasket, the groove of the second lower end cover is connected to the boss of the second upper end cover through the second gasket; the groove of the third lower end cover is connected to the boss of the third upper end cover through the third gasket, and the first end face of the third gasket is inclined toward the center direction of the gasket; The groove end surfaces of the first lower end cover, the second lower end cover and the third lower end cover are provided with installation grooves for the sealing ring to be tested; The boss end surfaces of the first upper end cover, the second upper end cover and the third upper end cover are all provided with sealing ring installation grooves, and the second side walls of the first upper end cover and the second upper end cover are both provided with three sealing ring installation grooves; The first lower end cover is provided with a first medium port, a second medium port and a third medium port, the first medium port and the third medium port are symmetrically arranged, and the second medium port is located at the center of the first lower end cover; The boss of the first upper end cover is provided with first through holes evenly distributed in the circumferential direction, a second through hole is provided at the center of the first upper end cover, and an annular groove is provided between the two outer sealing ring installation grooves on the second end surface of the first upper end cover; The second lower end cover is provided with a third through hole which is centrally symmetrical, and a fourth through hole is provided at the center of the second lower end cover; A fourth medium port is provided at the center of the third upper end cover; The second medium port, the fourth medium port, the second through hole and the fourth through hole are interconnected to form a first flow channel; the first medium port, the third medium port, the first through hole, the annular groove and the third through hole are interconnected to form a second flow channel.

2. The multi-environment simulation sealed aging test device according to claim 1, wherein The first gasket and the first upper end cover, the second gasket and the second upper end cover, and the third gasket and the third upper end cover are connected by interference fit or threaded connection.

3. The sealed aging test device for multi-environment simulation according to claim 1, characterized in that, The lower end covers of each stage and the upper end covers of each stage are fixed with bolts, the first lower end cover is provided with a threaded hole, the third upper end cover is provided with a bolt countersunk hole, and the first upper end cover, the second upper end cover, the second lower end cover and the third lower end cover are provided with bolt through holes of the same specification as the threaded holes of the first lower end cover.

4. The multi-environment simulation sealed aging test device according to claim 1, characterized in that, The sealing ring to be tested is arranged in the sealing ring to be tested installation groove.

5. The sealed aging test device for multi-environment simulation according to claim 1, characterized in that, A plurality of sealing rings are arranged in the sealing ring installation groove.

6. The multi-environment simulation sealed aging test device according to claim 5, characterized in that The multiple sealing rings include a first sealing ring, a second sealing ring, a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring, an eighth sealing ring and a ninth sealing ring. The first sealing ring, the fifth sealing ring and the ninth sealing ring are placed in the sealing ring installation grooves on the flange end face of the upper end cover, and the second sealing ring, the third sealing ring, the fourth sealing ring, the sixth sealing ring, the seventh sealing ring and the eighth sealing ring are placed in the sealing ring installation grooves on the second side wall of the upper end cover.

7. The sealed aging test device for multi-environment simulation according to claim 1, characterized in that The center axis of the first medium port or the third medium port coincides with the center axis of the third through hole.

8. The multi-environment simulation sealed aging test device according to claim 1, characterized in that, The first lower end cover, the third upper end cover, the gasket, the sealing ring to be tested and the sealing ring can be combined into a single-group testing device, and the gasket is arranged between the first upper end cover and the third lower end cover.

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