Reliability test device for sealing ring

Abstract

The embodiment of the invention discloses a reliability test device for a sealing ring. A plurality of first mounting grooves and second mounting grooves are formed in the first end face of a shell in the device at intervals; the reliability verification of the radial sealing structure is carried out through the sealing rings of various specifications which are radially mounted on the product A and the product B; a plurality of third mounting grooves are formed in the second end face at intervals, each product C is mounted in the corresponding third mounting groove through a pressing sleeve, and reliability verification of the end face sealing structure is carried out through a sealing ring arranged on the contact face of the pressing sleeve and the shell and a sealing ring arranged on the contact face of the pressing sleeve and the product C; a thread chamfer joint groove is formed in the third end face and is used for sealing the pipe joint through a thread chamfer to be mounted in the thread chamfer mounting groove; the second end face is further provided with a plurality of thread chamfer mounting grooves used for a pipeline plugging product D, and the thread chamfer mounting grooves are used for carrying out reliability verification on the thread chamfer sealing structure.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the field of hydraulic system reliability engineering technology, and particularly to a reliability testing device for sealing rings. Background Technology

[0002] Existing fixtures for sealing ring reliability testing mainly include flange-type structures with bolted connections, test fixture structures for single sealing ring specifications, test fixture structures with single loading methods, and large-scale test and inspection structures with complex structures. Existing sealing ring testing fixtures are complex in structure, have a single test mode, and are inconvenient for internal pressure loading.

[0003] The existing tooling used for sealing ring testing has a complex structure. A single tooling can only test a single sealing structure. The available O-ring rubber sealing rings are limited in size, the number of samples that can be tested simultaneously is limited, and reliability verification of functions and performance cannot be carried out simultaneously under the same conditions. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems. This invention provides a reliability testing device for O-rings to address the problems of existing tooling for reliability testing of O-rings, such as complex structure, single tooling only being able to test a single sealing structure, limited range of applicable O-ring specifications, limited number of samples that can be tested simultaneously, and inability to conduct reliability verification of functions and performance under the same conditions.

[0005] The technical solution of the present invention: The present invention provides a reliability testing device for sealing rings, comprising: a housing, a pressure sleeve, product A, product B, product C, product D, and a pipe fitting; The housing is configured as a cuboid structure, with multiple first mounting grooves for mounting the sealed product A and multiple second mounting grooves for mounting the sealed product B at intervals on the first end face of the housing; it is used to verify the reliability of radial sealing structures of multiple sample sealing rings of different specifications and materials by using multiple sealing rings radially mounted on product A and product B. The second end face of the housing has multiple third mounting grooves spaced apart for mounting the product C to be sealed. Each product C is installed in the corresponding third mounting groove by a pressure sleeve. The reliability of the end face sealing structure of the pressure sleeve with different specifications, different materials and multiple sample sealing rings is verified by the sealing rings set on the contact surface between the pressure sleeve and the housing and the sealing rings set on the contact surface between the pressure sleeve and the product C. The third end face of the housing is provided with a threaded chamfered joint groove for installing a pipe fitting, which is used to install the pipe fitting in the threaded chamfered mounting groove by forming a threaded chamfer seal; the second end face is also provided with multiple threaded chamfered mounting grooves for pipe sealing product D, which are used to install the pipe sealing product D in the threaded chamfered mounting grooves by forming a threaded chamfer seal; so as to carry out reliability verification of the threaded chamfered sealing structure of multiple sample sealing rings with different specifications and materials.

[0006] Optionally, in the reliability testing apparatus for sealing rings as described above, The housing contains multiple pipelines that connect the threaded chamfered joint groove to the first mounting groove, the second mounting groove, the third mounting groove, and the threaded chamfered mounting groove. The pipe fittings installed in the threaded chamfered joint groove apply loads to the sealing structures in each mounting groove, thereby enabling reliability verification of multiple sample sealing rings of different specifications, sealing structures, and materials under different load conditions.

[0007] Optionally, in the reliability testing apparatus for sealing rings as described above, the reliability verification under different load conditions includes: The pipe joint connects to various types of sealing structures inside the housing via pipes installed inside the housing, and is used to test and evaluate the sealing performance of various types of sealing structures under different load conditions; The pipe joint connects to various types of sealing structures inside the housing via pipes installed inside the housing, and is used to test and evaluate the sealing performance of various types of sealing structures under no-load and loaded conditions; The pipe joint connects to various types of sealing structures inside the housing via pipes installed within the housing, enabling the testing and evaluation of the sealing performance of different types of sealing structures under the same load conditions and different media.

[0008] Optionally, in the reliability testing apparatus for sealing rings as described above, In Product A and / or Product B, a retaining ring is added to the outer side of some radial sealing rings to form a radial sealing structure with a retaining ring, thereby improving the pressure bearing capacity of a single radial sealing structure; and to conduct comparative tests on radial sealing structures and radial sealing structures with retaining rings of specified specifications and the same material under the same load.

[0009] Optionally, in the reliability testing device for sealing rings as described above, each sealing ring in each type of sealing structure inside the housing is marked with XYZ coordinates to ensure that each sealing ring corresponds one-to-one with its test assembly position, thus ensuring that it can be reassembled in the original position after multiple disassembly, measurement and recording during the test.

[0010] Optionally, in the reliability testing apparatus for sealing rings as described above, Inside the housing, sealing rings of the same specifications and sealing structure are used to form different types of installation errors through multiple samples, so as to carry out comparative tests on the impact of different types of installation errors on sealing performance; among them, installation errors include: eccentric installation and tilted installation.

[0011] Optionally, in the reliability testing apparatus for sealing rings as described above, By using multiple reliability testing devices under different ambient temperatures and load conditions, reliability verification was carried out on sealing rings of various specifications, materials, and sealing structures.

[0012] Optionally, in the reliability testing apparatus for sealing rings as described above, By triggering the sealing structure failure in the reliability testing device using various forced failure modes, the reliability of the sealing rings of various sealing structures under specific installation error conditions, operating conditions, and environments is verified. The various forced failure modes include: installation error, load application, high and low temperature, and corrosion.

[0013] Optionally, in the reliability testing apparatus for sealing rings as described above, The reliability testing device can simultaneously perform reliability verification or comparative testing of functions, performance, and storage period under various specifications, materials, sealing structures, environments, and load conditions.

[0014] Optionally, in the reliability testing apparatus for sealing rings as described above, Product A is a fuel flow restrictor, which is equipped with three sealing rings to form a three-radial sealing structure. Product B is an oil nozzle assembly, which is equipped with two sealing rings to form two radial sealing structures. Product C is a clamping screw, which is used to be installed in the third mounting groove of the housing through a clamping sleeve, forming a two-end-face sealing structure; Product D is a screw plug used to seal the pipeline in the housing to prevent pressure drop due to pipeline leakage during reliability testing under applied load conditions.

[0015] The beneficial effects of this invention are as follows: This invention provides a reliability testing device for O-rings. Based on the reliability testing requirements of O-rings and addressing the numerous problems existing in current tooling, and considering the working conditions of the products to be sealed, this invention provides a reliability testing device that simulates actual assembly conditions. Using this device, under applied environmental conditions, strength conditions, and other load conditions, reliability testing of O-rings of multiple specifications, sealing forms, and sample sizes can be completed simultaneously. Furthermore, this reliability testing device can simultaneously verify the function, performance, and shelf life of each O-ring. In addition, this reliability testing device can perform tests on various sealing structures, such as radial sealing structures, end-face sealing structures, threaded chamfer sealing structures, and combined structure seals (radial seals with retaining rings), as well as comparative tests of various sealing structures under load and no-load conditions. The device uses a three-dimensional marking method to ensure a one-to-one correspondence between the test O-ring and its assembly position, guaranteeing that the O-ring can be reinstalled in its original position after multiple measurements during the test, effectively improving the testing efficiency and economy of O-ring reliability testing. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0017] Figure 1 A three-dimensional structural schematic diagram of a reliability testing device for sealing rings provided in an embodiment of the present invention; Figures 2 to 6 ,for Figure 1 A schematic diagram of different end faces of the housing in the reliability testing apparatus for sealing rings provided in the embodiment shown; Figures 7 to 9 This is a schematic diagram of various sealing structures installed in a reliability testing apparatus for sealing rings, provided as an example of an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0019] As explained in the background section, existing tooling for reliability testing of O-ring rubber seals has several drawbacks, including complex structure, the ability of a single tooling to test only a single sealing structure, a limited range of seal specifications that can be used, a limited number of samples that can be tested simultaneously, and the inability to conduct reliability verification of functions and performance under the same conditions.

[0020] In addition, existing tooling also has problems such as difficulty in sample labeling, limited testing environment, and inconvenience in internal pressure loading.

[0021] To address the reliability testing requirements of O-ring rubber seals, based on existing literature and addressing the numerous problems with existing tooling, and considering the working conditions of the product to be sealed, a reliability testing device capable of simulating actual assembly conditions is proposed, namely, the reliability testing device for O-ring seals provided in this embodiment of the invention.

[0022] The present invention provides the following specific embodiments, which can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments.

[0023] Figure 1 A three-dimensional structural schematic diagram of a reliability testing device for sealing rings provided in an embodiment of the present invention; Figures 2 to 6 ,for Figure 1 A schematic diagram of different end faces of the housing in the reliability testing apparatus for sealing rings provided in the embodiment shown; Figures 7 to 9 This is a schematic diagram of various sealing structures installed in a reliability testing apparatus for sealing rings, provided as an example of an embodiment of the present invention.

[0024] The reliability testing device for sealing rings provided in this embodiment of the invention includes: a housing, a pressure sleeve, product A, product B, product C, product D, and a pipe fitting.

[0025] The shell of the test device is configured as a cuboid structure. The first end face of the shell is provided with multiple first mounting grooves for mounting the sealed product A and multiple second mounting grooves for mounting the sealed product B. The device is used to verify the reliability of radial sealing structures of multiple sample sealing rings of different specifications and materials by using multiple sealing rings radially mounted on product A and product B. The second end face of the housing has multiple third mounting grooves spaced apart for mounting the products C to be sealed. Each product C is installed in the corresponding third mounting groove by a pressure sleeve. The reliability of the end face sealing structure of the sealing rings of different specifications, different materials and multiple sample sealing rings is verified by the sealing rings set on the contact surface between the pressure sleeve and the housing and the sealing rings set on the contact surface between the pressure sleeve and the product C. A threaded chamfered joint groove is provided on the third end face of the housing for installing a pipe fitting, which is used to install the pipe fitting in the threaded chamfered mounting groove by forming a threaded chamfer seal; multiple threaded chamfered mounting grooves are also provided on the second end face for installing the pipe sealing product D, which is used to install the pipe sealing product D in the threaded chamfered mounting groove by forming a threaded chamfer seal; so as to carry out reliability verification of the threaded chamfered sealing structure of multiple sample sealing rings with different specifications and materials.

[0026] In one embodiment of the present invention, multiple pipelines are provided inside the housing to connect the threaded chamfered joint groove with each of the first mounting grooves, the second mounting grooves, the third mounting grooves, and the threaded chamfered mounting grooves, respectively. The pipe fittings installed in the threaded chamfered joint grooves are used to apply loads to the sealing structures in each mounting groove, thereby enabling reliability verification of multiple sample sealing rings of different specifications, sealing structures, and materials under different load conditions.

[0027] In one implementation of this invention, reliability verification under different load conditions includes the following schemes: Option 1: The pipe joint is connected to various types of sealing structures inside the shell through pipes installed inside the shell, which is used to detect and evaluate the sealing performance of various types of sealing structures under different load conditions. Option 2: The pipe joint is connected to various types of sealing structures inside the shell through pipes installed inside the shell, which is used to detect and evaluate the sealing performance of various types of sealing structures under no-load and loaded conditions. Option 3 involves connecting the pipe joint to various types of sealing structures inside the housing via pipes installed within the housing. This allows for the testing and evaluation of the sealing performance of different types of sealing structures under the same load conditions and different media.

[0028] In one implementation of this invention, a retaining ring is added to the outer side of some radial sealing rings in product A and / or product B to form a radial sealing structure with a retaining ring, thereby improving the pressure bearing capacity of a single radial sealing structure; and to conduct comparative tests on radial sealing structures and radial sealing structures with retaining rings under the same load for sealing rings of specified specifications and the same material.

[0029] In one implementation of this invention, each sealing ring in the various types of sealing structures inside the housing is marked with XYZ coordinates, so that each sealing ring corresponds one-to-one with its test assembly position, ensuring that it can be reassembled in the original position after multiple disassembly, measurement and recording during the test.

[0030] In one implementation of this invention, sealing rings of the same specifications and sealing structure are used within the housing. Multiple samples are used to form different forms of installation errors in order to conduct a comparative test on the impact of different forms of installation errors on sealing performance. The installation errors include: eccentric installation and tilted installation.

[0031] In one implementation of this invention, reliability verification is carried out on sealing rings of various specifications, materials, and sealing structures under different ambient temperatures and load conditions by using multiple reliability testing devices.

[0032] In one implementation of this invention, the sealing structure in the reliability testing device is triggered to fail by using multiple forced failure modes to verify the reliability of the sealing rings of various sealing structures under specific installation error conditions, operating conditions, and environments. The multiple forced failure modes include: installation error, load application, high and low temperature, and corrosion.

[0033] In one implementation of the present invention, the installation form with a large number of samples can be realized based on the shell. In this implementation, the reliability testing device can simultaneously carry out reliability verification or comparative test verification of function, performance and storage period under various specifications, materials, sealing structures, environments and load conditions.

[0034] It should be noted that, in the above embodiments of the present invention, product A is, for example, a fuel flow restrictor, which is equipped with three sealing rings to form a three-radial sealing structure; product B is, for example, a fuel injector assembly, which is equipped with two sealing rings to form a two-radial sealing structure; product C is, for example, a clamping screw, which is used to be installed in the third mounting groove of the housing through a pressure sleeve and forms a two-end face sealing structure; product D is, for example, a plug, used to seal the pipeline in the housing to avoid pressure drop caused by pipeline leakage during reliability testing under applied load conditions.

[0035] This invention provides a reliability testing device for O-rings. Based on the reliability testing requirements of O-rings and addressing the numerous problems existing in current tooling, this invention provides a reliability testing device that simulates actual assembly conditions. Using this device, under applied environmental and strength load conditions, reliability testing of O-rings of multiple specifications, sealing types, and sample sizes can be completed simultaneously. Furthermore, this reliability testing device can simultaneously verify the function, performance, and shelf life of each O-ring. In addition, this reliability testing device can perform tests on various sealing structures, such as radial sealing structures, end-face sealing structures, threaded chamfer sealing structures, and combined sealing structures (radial seals with retaining rings), as well as comparative tests of various sealing structures under load and no-load conditions. The device uses a three-dimensional marking method to ensure a one-to-one correspondence between the test O-ring and its assembly position, guaranteeing that the O-ring can be reinstalled after multiple measurements during the test, effectively improving the testing efficiency and economy of O-ring reliability testing. Implementation Example like Figures 1 to 3 As shown, this implementation example provides a single reliability testing apparatus for a sealing ring, which includes, for example: (1) Five first mounting slots arranged side by side are used to install five fuel flow restrictors. Each fuel flow restrictor is equipped with three sealing rings of two different specifications to form a radial sealing structure, namely sealing ring 1# and sealing ring 2#; Figure 7 As shown.

[0036] (2) Five second mounting slots arranged side by side are used to install five oil nozzle assemblies. Each oil nozzle assembly is equipped with two sealing rings of two different specifications to form a radial sealing structure. The upper row of sealing rings has the same size as ring 1#, i.e., sealing ring 1# and sealing ring 3# respectively. Figure 8 As shown.

[0037] (3) Five third mounting slots are arranged in two rows side by side for installing five clamping screws. Each clamping screw has two sealing rings of the same specification installed on it through a pressure sleeve, forming an end face sealing structure, which is sealing ring #4; Figure 9 As shown.

[0038] (4) A threaded chamfered joint groove is provided for corresponding installation of pipe fittings. The pipe fitting is equipped with a sealing ring of one specification, namely sealing ring #5; Figure 7 As shown; two chamfered mounting grooves are provided for the pipe sealing plug, and the plug is fitted with a sealing ring of one specification, namely sealing ring #6; as shown Figure 8 As shown.

[0039] The reliability testing apparatus provided in this implementation example can simultaneously accommodate 48 O-rings of 6 different sizes, ensuring the minimum number of samples required for the test.

[0040] The device provided in this implementation example is used to assemble sealing rings in various forms to create multiple sealing structures, including radial seals, end face seals, and threaded chamfer seals. This supports performance difference testing and verification of different sealing structures under the same operating conditions. The radial seal structure can accommodate 25 sealing rings of three different sizes, with 15 of the sealing ring assembly grooves having additional retaining ring structures added according to standards to expand the sealing ring's pressure bearing range. The end face seal structure can accommodate 20 sealing rings of one size. The threaded chamfer seal can accommodate three sealing rings of two sizes.

[0041] The device provided in this implementation example supports simultaneous comparative testing and verification of the function, performance, and shelf life of O-rings of the same specifications but different materials under the same sealing form (structure), environment, and load.

[0042] The device provided in this implementation example supports simultaneous comparative testing and verification of the function, performance, and shelf life of O-rings of different specifications and the same material under the same sealing form (structure), environment, and load.

[0043] The above-mentioned device provided in this implementation example has a total of 15 sealing ring specifications that support the addition of the retaining ring structure (10 of which are equipped with the retaining ring structure in the specific example). It supports the simultaneous functional, performance and storage period comparison test verification of the new sealing design (with retaining ring structure) and the traditional structure (without retaining ring) under the same environment and load, using O-ring rubber sealing rings of the same specifications and materials.

[0044] The components of the sealing parts in the device provided in this embodiment are all designed with easy disassembly and assembly, which enables quick disassembly and assembly of the O-ring rubber seal.

[0045] The device provided in this embodiment example is equipped with a pipe joint as a load input port. The pipe joint is connected to various sealing parts inside the housing through the pipeline provided inside the housing, which can realize the detection and evaluation of sealing performance under different load conditions.

[0046] The device provided in this embodiment is equipped with a pipe joint, which is connected to various sealing parts inside the housing through a pipe provided inside the housing, so as to realize the detection and evaluation of the sealing performance of the O-ring rubber seal under no-load and loaded conditions.

[0047] The device provided in this embodiment is equipped with a pipe joint, which is connected to various sealing parts inside the housing through a pipeline installed inside the housing, so as to realize the detection and evaluation of sealing performance under the same load conditions and different media.

[0048] The device provided in this implementation example uses a three-dimensional marking method to mark the position of each O-ring rubber seal in an XYZ manner, which can realize that each seal corresponds one-to-one with its test assembly position, ensuring that it can be reassembled in the original position after multiple disassembly, measurement and recording during the test.

[0049] The device provided in this implementation example is lightweight and portable, with a maximum external dimension of only (161mm×89.5mm×66mm). It is small in size and highly adaptable to various environments, enabling experimental verification under various environmental conditions (high temperature, high pressure, corrosion, etc.). The tests can be conducted using the various loading methods described above.

[0050] The device provided in this implementation example has a mature processing technology and low cost. It can be convenient to process multiple test devices for comparative testing under different environmental conditions, or to increase the number of samples under the same test conditions, effectively shortening the test time.

[0051] The device provided in this implementation example can perform comparative tests to verify the impact of installation errors (eccentricity, tilt, etc.) on sealing performance for sealing rings of the same specification and sealing structure.

[0052] The device provided in this implementation example can forcibly trigger seal failure in multiple ways (such as different installation errors, pressurization, heating, etc.) to observe O-ring failure states such as cracks, deformation, and swelling; in order to verify the reliability of the seal under specific installation conditions, operating conditions, and environments.

[0053] In the research project on extending the calendar life of aero-engine accessories, the focus was on predicting the calendar life of O-ring rubber seals, and accelerated storage tests were conducted on the seals. Because the tests involved multiple sizes, materials, high temperatures, and various operating conditions, existing tooling was insufficient. This invention solves this testing problem. In a project example, this device was used on-site with three units. Three test temperatures were set at (70±2)℃, (90±2)℃, and (110±2)℃. High-temperature storage tests, low-temperature sealing tests, and pressurized sealing tests were conducted simultaneously. Test data measurements and recordings were completed before, during, and after the tests. The device performed well and achieved the expected goals.

[0054] Application examples: Using multiple testing devices provided by this invention, and paired with ten different types and specifications of sealing rings (including eight sizes and four materials), online (with oil flow) and offline (without oil flow) tests were completed at three ambient temperatures: (70±2)℃, (90±2)℃, and (110±2)℃. The tests lasted for 100 days. Before, during, and after the tests, the appearance, dimensions, and hardness of the sealing rings on the end face and radial sealing structure were measured multiple times. The compression ratio of the sealing rings at different test points was calculated. An aging model was established to evaluate the aging rate of sealing rings made of different materials, and the storage life of sealing rings made of different materials at room temperature was predicted.

[0055] While the embodiments disclosed in this invention are as described above, they are merely illustrative of the embodiments to facilitate understanding of the invention and are not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A reliability testing device for sealing rings, characterized in that, include: Housing, compression sleeve, product A, product B, product C, product D, and pipe fittings; The housing is configured as a cuboid structure, with multiple first mounting grooves for mounting the sealed product A and multiple second mounting grooves for mounting the sealed product B at intervals on the first end face of the housing; it is used to verify the reliability of radial sealing structures of multiple sample sealing rings of different specifications and materials by using multiple sealing rings radially mounted on product A and product B. The second end face of the housing has multiple third mounting grooves spaced apart for mounting the product C to be sealed. Each product C is installed in the corresponding third mounting groove by a pressure sleeve. The reliability of the end face sealing structure of the pressure sleeve with different specifications, different materials and multiple sample sealing rings is verified by the sealing rings set on the contact surface between the pressure sleeve and the housing and the sealing rings set on the contact surface between the pressure sleeve and the product C. The third end face of the housing is provided with a threaded chamfered joint groove for installing a pipe fitting, which is used to install the pipe fitting in the threaded chamfered mounting groove by forming a threaded chamfer seal; the second end face is also provided with multiple threaded chamfered mounting grooves for pipe sealing product D, which are used to install the pipe sealing product D in the threaded chamfered mounting grooves by forming a threaded chamfer seal; so as to carry out reliability verification of the threaded chamfered sealing structure of multiple sample sealing rings with different specifications and materials.

2. The reliability testing apparatus for sealing rings according to claim 1, characterized in that, The housing contains multiple pipelines that connect the threaded chamfered joint groove to the first mounting groove, the second mounting groove, the third mounting groove, and the threaded chamfered mounting groove. The pipe fittings installed in the threaded chamfered joint groove apply loads to the sealing structures in each mounting groove, thereby enabling reliability verification of multiple sample sealing rings of different specifications, sealing structures, and materials under different load conditions.

3. The reliability testing apparatus for sealing rings according to claim 2, characterized in that, The reliability verification under different load conditions includes: The pipe joint connects to various types of sealing structures inside the housing via pipes installed inside the housing, and is used to test and evaluate the sealing performance of various types of sealing structures under different load conditions; The pipe joint connects to various types of sealing structures inside the housing via pipes installed inside the housing, and is used to test and evaluate the sealing performance of various types of sealing structures under no-load and loaded conditions; The pipe joint connects to various types of sealing structures inside the housing via pipes installed within the housing, enabling the testing and evaluation of the sealing performance of different types of sealing structures under the same load conditions and different media.

4. The reliability testing apparatus for sealing rings according to claim 2, characterized in that, In Product A and / or Product B, a retaining ring is added to the outer side of some radial sealing rings to form a radial sealing structure with a retaining ring, thereby improving the pressure bearing capacity of a single radial sealing structure; and to conduct comparative tests on radial sealing structures and radial sealing structures with retaining rings of specified specifications and the same material under the same load.

5. The reliability testing apparatus for sealing rings according to claim 1, characterized in that, Each sealing ring in the various types of sealing structures inside the housing is marked with XYZ coordinates, so that each sealing ring corresponds one-to-one with its test assembly position, ensuring that it can be reassembled in the original position after multiple disassembly, measurement and recording during the test.

6. The reliability testing apparatus for sealing rings according to claim 1, characterized in that, Inside the housing, sealing rings of the same specifications and sealing structure are used to form different types of installation errors through multiple samples, so as to carry out comparative tests on the impact of different types of installation errors on sealing performance; among them, installation errors include: eccentric installation and tilted installation.

7. The reliability testing apparatus for sealing rings according to any one of claims 1 to 6, characterized in that, By using multiple reliability testing devices under different ambient temperatures and load conditions, reliability verification was carried out on sealing rings of various specifications, materials, and sealing structures.

8. The reliability testing apparatus for sealing rings according to any one of claims 1 to 6, characterized in that, By triggering the sealing structure failure in the reliability testing device using various forced failure modes, the reliability of the sealing rings of various sealing structures under specific installation error conditions, operating conditions, and environments is verified. The various forced failure modes include: installation error, load application, high and low temperature, and corrosion.

9. The reliability testing apparatus for sealing rings according to any one of claims 2 to 6, characterized in that, The reliability testing device can simultaneously perform reliability verification or comparative testing of functions, performance, and storage period under various specifications, materials, sealing structures, environments, and load conditions.

10. The reliability testing apparatus for sealing rings according to any one of claims 2 to 6, characterized in that, Product A is a fuel flow restrictor, which is equipped with three sealing rings to form a three-radial sealing structure. Product B is an oil nozzle assembly, which is equipped with two sealing rings to form two radial sealing structures. Product C is a clamping screw, which is used to be installed in the third mounting groove of the housing through a clamping sleeve, forming a two-end-face sealing structure; Product D is a screw plug used to seal the pipeline in the housing to prevent pressure drop due to pipeline leakage during reliability testing under applied load conditions.

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