Sealing ring test fixture

Abstract

The utility model belongs to the technical field of aviation part testing devices, and particularly relates to a sealing ring testing clamp, which comprises a lower bottom plate, an upper bottom plate and an upper support, adopts the upper bottom plate and the lower bottom plate to cooperate to clamp a sealing ring, loads and vibrations based on a press machine, and is provided with an air inlet and an air outlet. The sealing performance test, the normal-temperature elasticity test, the high-temperature elasticity test, the endurance test, the vibration test and the like of the metal sealing ring can be effectively realized, the structure is simple and reliable, and the manufacturing and maintenance cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation component testing devices, and in particular relates to a sealing ring testing fixture. Background Art

[0002] The raw material of the metal sealing ring is a high-temperature alloy strip. The strip is laser welded into a ring material, and then the ring material is rolled into shape.

[0003] Metal sealing rings are mainly used in harsh environments such as high temperature, high pressure, vibration and strong corrosive media in aviation and aerospace. After design and manufacturing, they need to simulate actual working conditions for various tests, such as sealing test, room temperature elasticity test, high temperature elasticity test, endurance test, vibration test, etc. Existing testing tools for metal sealing rings are not reliable or functionally complete enough. Utility Model Content

[0004] In view of this, the utility model provides a sealing ring test fixture with high reliability and functional integrity, which can realize sealing test, normal temperature elasticity test, high temperature elasticity test, endurance test, vibration test, etc. on the metal sealing ring.

[0005] In order to achieve the above technical objectives, the specific technical solutions adopted by the utility model are:

[0006] A sealing ring test fixture, comprising:

[0007] The lower bottom plate is provided with a lower clamping end surface for clamping one port of the sealing ring, and is provided with an air inlet and an air outlet; the air inlet and the air outlet are both connected to the clamping end surface;

[0008] An upper base plate, arranged opposite to the lower base plate, and provided with an upper clamping end surface for clamping another port of the sealing ring;

[0009] The upper bracket is fixedly arranged with the upper base plate and arranged at one end of the upper base plate away from the lower base plate, and the end away from the upper base plate is used for connecting with a press.

[0010] Furthermore, the upper clamping end surface is parallel to the lower clamping end surface.

[0011] Furthermore, the upper clamping end surface and the lower clamping end surface are both circular surfaces; and the diameters of the two circular surfaces are both larger than the diameter of the sealing ring.

[0012] Furthermore, the test fixture also includes a guard ring; the guard ring is arranged at the edge of the lower clamping end face, and when the test fixture clamps the sealing ring, the guard ring is located between the upper clamping end face and the lower clamping end face, and is used to prevent the sealing ring clamped between the upper end face and the lower end face from escaping from the test fixture.

[0013] Furthermore, the inlet of the air inlet is arranged on the bottom surface of the lower bottom plate, and the outlet is arranged on the lower clamping end surface.

[0014] Furthermore, the outlet of the air outlet is arranged on the side of the lower base plate, and the inlet is arranged on the lower clamping end surface.

[0015] Furthermore, the air inlet is coaxial with the lower base plate.

[0016] Furthermore, a sealing rubber ring is provided at the inlet of the air inlet.

[0017] Furthermore, a sealing rubber ring is provided at the outlet of the air outlet.

[0018] Furthermore, the upper base plate and the upper bracket are fixed to each other based on hexagon socket screws.

[0019] By adopting the above technical solution, the utility model can bring the following beneficial effects:

[0020] The utility model adopts upper and lower bottom plates to cooperate with clamping the sealing ring, based on the load and vibration of the press machine, and is provided with an air inlet and an air outlet, which can effectively realize the sealing test, normal temperature elasticity test, high temperature elasticity test, endurance test, vibration test, etc. of the metal sealing ring;

[0021] The utility model has a simple and reliable structure and low manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the cross-sectional structure of the sealing ring to be tested in the specific implementation mode of the utility model;

[0024] Figure 2 This is a structural schematic diagram of a sealing ring test fixture in a specific implementation manner of the utility model;

[0025] Among them: 1. Lower base plate; 2. Guard ring; 3. Upper base plate; 4. Bracket; 5. Hexagon socket screw. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0027] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0028] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0030] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0031] In one embodiment of the present invention, a sealing ring test fixture is provided, which is used to clamp the sealing ring when testing the sealing ring. Figure 2 As shown, including:

[0032] The lower bottom plate 1 is provided with a lower clamping end surface for clamping one port of the sealing ring, and is provided with an air inlet and an air outlet; the air inlet and the air outlet are both connected to the clamping end surface;

[0033] The upper base plate 3 is arranged opposite to the lower base plate 1 and is provided with an upper clamping end surface for clamping the other end of the sealing ring;

[0034] The upper bracket 4 is fixedly arranged with the upper base plate 3 and is arranged at one end of the upper base plate 3 away from the lower base plate 1 , and the end away from the upper base plate 3 is used for connecting with a press.

[0035] In this embodiment, the upper clamping end surface is parallel to the lower clamping end surface.

[0036] In this embodiment, the upper clamping end face and the lower clamping end face are both circular faces; the diameters of the two circular faces are 30-40 mm larger than the diameter of the sealing ring, and the sealing rings smaller than the direct size of the clamping end face can be tested using the fixture, and the sealing rings with inner and outer openings can use the fixture.

[0037] In this embodiment, the test fixture also includes a protective ring 2; the protective ring 2 is arranged at the edge of the lower clamping end face, and when the test fixture clamps the sealing ring, the protective ring 2 is located between the upper clamping end face and the lower clamping end face; it is used to prevent the sealing ring clamped between the upper end face and the lower end face from escaping from the test fixture.

[0038] In this embodiment, the inlet of the air inlet is arranged on the bottom surface of the lower bottom plate 1, and the outlet is arranged on the lower clamping end surface.

[0039] In this embodiment, the outlet of the air outlet is arranged on the side of the lower base plate 1, and the inlet is arranged on the lower clamping end surface.

[0040] In this embodiment, the air inlet is coaxial with the lower base plate 1 .

[0041] In this embodiment, a sealing rubber ring is provided at the inlet of the air inlet; and a sealing rubber ring is provided at the outlet of the air outlet.

[0042] In this embodiment, the upper base plate 3 and the upper bracket 4 are fixed to each other based on the hexagon socket screws 5 .

[0043] In some embodiments, when the sealing ring is a W-ring, the air inlet and the air outlet are used interchangeably.

[0044] Figure 1 The figure shows the structure diagram of the sealing ring. The raw material of the metal sealing ring is a high-temperature alloy strip. The strip is laser welded to become a ring material, and then the ring material is rolled into shape.

[0045] In this embodiment, the lower and middle pressure plates, the retaining ring 2, and the upper pressure plate are made of 40Cr, and the upper bracket 4 is a welded part made of Q235. The lower pressure plate has an air inlet and an air outlet, which are connected by 1 / 4Z taper threads to prevent the fixture itself from leaking and affecting the results of measuring the sealing performance. The upper pressure plate is fixed to the upper bracket 4 by 4 inner hexagonal screws 5, and the upper bracket 4 is fixed to the press by 6 T-screws. When clamping and fixing, the clamping parallelism of the upper pressure plate needs to be measured by a meter.

[0046] The usage process of this embodiment:

[0047] The entire sealing ring test fixture is based on the working surface of the modified press and fixed on the press. It rises through the upper base plate 3, places the metal sealing ring on the lower pressure plate, places a suitable height limit pad, and conducts a metal sealing ring sealing test. The sealing ring has two typical structures: W ring and M ring, that is, the sealing ring opening faces inward and outward. When the opening faces inward, it is an M ring, the air inlet is the middle hole of the fixture, the air inlet pipe is connected to the middle hole of the fixture, and the air outlet is connected to the side hole of the fixture. At the same time, an O-ring needs to be placed on the outer ring of the air outlet to prevent gas leakage, resulting in the inability to collect all the gas leakage. A protective ring 2 is placed on the outer ring. When the pressure is placed, the parts or the rubber ring will rush out, causing a safety accident. When the opening faces outward, it is a W ring, the air inlet is the side hole of the fixture, the air inlet pipe is connected to the side hole of the fixture, the air outlet is connected to the center hole of the fixture, and then the O-ring and retainer 2 are placed, and the down-pressing operation button is pressed, and the upper base plate 3 is pressed down to the height limit pad. After tightening, the leakage volume is collected and read through the pressure difference of the actual working conditions, and then the up key is pressed to take out the parts to complete the sealing test. The elasticity test is slightly simpler than the sealing test. It does not require the introduction of air pressure, the placement of rubber rings and retainer 2, and the elasticity test is completed by pressing the up and down cycles required for the test times through the operation button.

[0048] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A sealing ring test fixture, characterized in that: include: The lower bottom plate is provided with a lower clamping end surface for clamping one port of the sealing ring, and is provided with an air inlet and an air outlet; the air inlet and the air outlet are both connected to the clamping end surface; An upper base plate, arranged opposite to the lower base plate, and provided with an upper clamping end surface for clamping another port of the sealing ring; The upper bracket is fixedly arranged with the upper base plate and arranged at one end of the upper base plate away from the lower base plate, and the end away from the upper base plate is used for connecting with a press.

2. The sealing ring test fixture according to claim 1, characterized in that: The upper clamping end surface is parallel to the lower clamping end surface.

3. The sealing ring test fixture according to claim 2, characterized in that: The upper clamping end surface and the lower clamping end surface are both circular surfaces; the diameters of the two circular surfaces are both larger than the diameter of the sealing ring.

4. The sealing ring test fixture according to claim 3, characterized in that: The test fixture also includes a guard ring; the guard ring is arranged at the edge of the lower clamping end face, and when the test fixture clamps the sealing ring, the guard ring is located between the upper clamping end face and the lower clamping end face, and is used to prevent the sealing ring clamped between the upper end face and the lower end face from escaping from the test fixture.

5. The sealing ring test fixture according to claim 4, characterized in that: The inlet of the air inlet is arranged on the bottom surface of the lower bottom plate, and the outlet is arranged on the lower clamping end surface.

6. The sealing ring test fixture according to claim 5, characterized in that: The outlet of the air outlet is arranged on the side of the lower bottom plate, and the inlet is arranged on the lower clamping end surface.

7. The sealing ring test fixture according to claim 6, characterized in that: The air inlet is coaxial with the lower base plate.

8. The sealing ring test fixture according to claim 7, characterized in that: A sealing rubber ring is arranged at the inlet of the air inlet.

9. The sealing ring test fixture according to claim 8, characterized in that: A sealing rubber ring is arranged at the outlet of the air outlet.

10. The sealing ring test fixture according to claim 9, characterized in that: The upper base plate and the upper bracket are fixed to each other based on hexagon socket screws.

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