Disclosure of Invention
The invention provides a low-temperature sealing performance experimental device and an experimental method for a rubber sealing ring, which are used for solving the problem that the low-temperature brittleness performance of the rubber sealing ring part cannot be corresponding to the actual low-temperature performance of the sealing ring part by adopting a standard test piece in the prior art.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, a low-temperature sealing performance experimental device for a rubber sealing ring is provided, including:
The temperature adjusting component is used for adjusting the experimental temperature;
the clamping assembly is arranged in the temperature adjusting assembly and used for clamping the rubber sealing ring;
and one end of the conveying piece is connected with the clamping assembly, and the other end of the conveying piece extends to the outside of the temperature adjusting assembly and is connected with the pressure control assembly.
Further, the temperature adjusting assembly comprises a containing piece, wherein the containing piece is provided with a temperature detecting piece and a through hole;
The clamping assembly is arranged in the accommodating part, one end of the conveying part is connected to the top of the clamping assembly, and the other end of the conveying part penetrates through the through hole to be connected with the pressure control assembly.
Further, the clamping assembly comprises an upper clamping piece and a lower clamping piece, and the upper clamping piece and the lower clamping piece are connected through a fastener;
The top of the upper clamping piece is provided with a joint, and one end of the conveying piece is connected with the joint.
Further, the clamping assembly further comprises a limiting piece, and the limiting piece is arranged at the top of the lower clamping piece;
the fastener circumference sets up a plurality of, and a plurality of form the fastening district between the fastener, the locating part is located the fastening district.
Further, the limiting piece is of an annular structure.
Further, the upper clamping piece and the lower clamping piece are identical in structure.
Further, the cross sections of the upper clamping piece and the lower clamping piece are annular.
Further, the conveying member is of a tubular structure.
Further, the pressure control assembly comprises pressure control equipment, the pressure control equipment is connected with the other end of the conveying piece, and a pressure gauge is arranged on the pressure control equipment.
In a second aspect, there is provided a method for testing the low-temperature sealing performance of a rubber seal ring, the method being performed by using the testing device as described above, and comprising:
Prefabricating a rubber sealing ring sample;
Placing the prefabricated rubber seal ring sample in a clamping assembly;
Presetting experimental temperature and experimental pressure, and starting a temperature adjusting assembly and a pressure control assembly to test a rubber sealing ring sample placed in the clamping assembly.
Compared with the prior art, the invention has the following beneficial effects:
1. The clamping assembly for the rubber sealing ring is clamped and placed in the temperature adjusting assembly, the experimental temperature is set, the gas in the pressure control assembly is conveyed into the clamping assembly by the conveying member, the change condition of the sealing performance of the rubber sealing ring in a low-temperature environment can be obtained, the technical problem that the low-temperature brittleness performance cannot be corresponding to the actual low-temperature performance of the sealing ring part by adopting the standard test piece is solved, and reliable technical support is provided for the use of the rubber sealing ring.
2. The temperature detection part is arranged in the accommodating part, so that the change condition of the performance of the rubber sealing ring in different low-temperature environments can be obtained.
3. The upper clamping piece and the lower clamping piece are used for clamping the rubber sealing ring, so that the real change condition of the performance of the rubber sealing ring in an experiment can be obtained on one hand, and a guarantee is provided for the reliability of the experiment on the other hand.
4. The setting of locating part makes rubber seal can keep stable when receiving the centre gripping, reduces the possibility of skew.
5. The limiting part of the annular structure can provide uniformly distributed supporting force at the top of the lower clamping part, and the supporting force is favorable for ensuring that the rubber sealing ring is uniformly stressed when being clamped.
6. The clamping pieces with the same structure can be replaced with each other, so that the maintenance and the replacement are very convenient, and the problem of compatibility is not required to be worried about.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present embodiment will be described in further detail with reference to the accompanying drawings.
The embodiment provides a low-temperature sealing performance experimental device and an experimental method for a rubber sealing ring, and in a first aspect, the device comprises a temperature adjusting component for adjusting the experimental temperature; the clamping assembly is arranged in the temperature adjusting assembly and used for clamping and fixing the rubber sealing ring; and one end of the conveying piece 1 is connected with the clamping assembly, the other end of the conveying piece extends to the outside of the temperature adjusting assembly and is connected with the pressure control assembly, and the conveying piece is used for conveying gas inside the pressure control assembly into the clamping assembly, so that the rubber sealing ring can deform at the temperature adjusting assembly and the low-temperature sealing performance of the rubber sealing ring is detected. Taking an experiment of the O-shaped rubber sealing ring 8 as an example, as shown in fig. 1, the temperature adjusting assembly comprises a containing piece 13, wherein a containing cavity is formed in the containing piece 13, and after the clamping assembly is used for clamping the O-shaped rubber sealing ring 8, the clamping assembly is placed in the containing cavity of the containing piece 13; the temperature detection part is used for detecting the temperature change condition in the accommodating cavity, the through hole is used for installing the conveying part 1, one end of the conveying part 1 is connected to the top of the clamping assembly, the other end of the conveying part passes through the through hole and is connected with the pressure control assembly, gas in the pressure control assembly is conveyed to the clamping assembly, and the change condition of the sealing performance of the rubber sealing ring in a low-temperature environment can be obtained. In the experimental process, the temperature adjusting component can accurately adjust the experimental temperature, which is critical to the performance test of the rubber sealing ring, and the performance of the rubber material is often obviously affected by the temperature, so that the performance of the rubber sealing ring under different temperature conditions, such as tightness, elasticity, wear resistance and the like, can be more effectively evaluated by accurately controlling the experimental temperature, the stability and reliability of the clamping component for clamping the O-shaped rubber sealing ring 8 are critical to the accuracy of the experimental result, and the O-shaped rubber sealing ring 8 can be effectively prevented from moving or deforming in the temperature and pressure change process, thereby affecting the accuracy of the experimental result. Finally, the pressure control assembly can apply accurate pressure to the O-shaped rubber sealing ring 8 so as to simulate the pressure condition in the actual working environment, thereby more comprehensively evaluating the performance of the O-shaped rubber sealing ring, being capable of realizing comprehensive performance evaluation of the rubber sealing ring under various conditions, not only being beneficial to improving the quality and reliability of products, but also providing powerful support for the design and optimization of the products.
As shown in fig. 2 and 3, the clamping assembly comprises an upper clamping piece 3 and a lower clamping piece 5, the upper clamping piece 3 and the lower clamping piece 5 are identical in structure, the cross sections of the upper clamping piece 3 and the lower clamping piece 5 are annular, the upper clamping piece 3 and the lower clamping piece 5 are connected through fasteners, a plurality of fasteners are circumferentially arranged, a fastening area is formed between the fasteners, a limiting piece 7 is placed at the top of the lower clamping piece 5, the limiting piece 7 is located in the fastening area, a joint 6 is arranged at the top of the upper clamping piece 3, and one end of the conveying piece 1 is connected with the joint 6. After the O-shaped rubber sealing ring 8 is placed in the fastening area and is positioned on the inner side of the limiting part 7, a plurality of fasteners are manually operated, the upper clamping part 3 and the lower clamping part 5 are fastened together to extrude the O-shaped rubber sealing ring 8, then the clamping assembly is integrally placed in the accommodating part 13, and whether the air leakage phenomenon exists or not is judged through the pressure control assembly in each period of time. In the experimental process, as the upper clamping piece 3 and the lower clamping piece 5 have the same structure and the cross sections are annular, the clamping pressure can be uniformly applied during clamping, and the unstable clamping or the damage of the O-shaped rubber sealing ring 8 caused by uneven pressure distribution is avoided. At the same time, a plurality of fasteners are circumferentially disposed and form a fastening zone therebetween, providing a stable and reliable gripping environment for the O-ring 8. Secondly, manually operation a plurality of fasteners can accurate adjustment clamping force as required to adapt to the O shape rubber seal 8 of equidimension or hardness, set up the joint at the top of last holder 3, and be connected with conveying piece 1, realized the convenient integration of clamping assembly and pressure control subassembly, make whole experimental process smoother, reduced operation steps and complexity.
In this embodiment, the conveying member 1 has a tubular structure.
In this embodiment, the accommodating member 13 is preferably a box structure.
In this embodiment, the fastening member includes a fastening nut 2 and a fastening bolt 4, and the upper clamping member 3 and the lower clamping member 5 are provided with mounting holes, and the fastening bolt 4 sequentially passes through the mounting holes of the upper clamping member 3 and the lower clamping member 5 and is fastened by the fastening nut 2.
In this embodiment, the limiting member 7 has a ring-shaped structure.
In this embodiment, as shown in fig. 1, the pressure control assembly includes a pressure control device 12, where the pressure control device 12 is connected to the other end of the conveying member 1, and a pressure gauge 11 is provided on the pressure control device 12, and in the experimental process, reading is performed by the pressure gauge 11, so as to determine whether there is a pressure leakage condition; the pressure control device 12 supplies gas to the inside of the container 13 through the gas inlet pipe 10, and a gas valve 9 is mounted on the gas inlet pipe 10, and the gas valve 9 controls the opening or closing of the gas inlet pipe 10. Through setting up manometer 11 on pressure control equipment, the experimenter can read pressure data in real time to in time monitor O shape rubber seal 8's performance under specific pressure, help the accurate condition of judging whether there is pressure leakage, improved the accuracy and the reliability of experiment. The air inlet pipe 10 conveys air into the accommodating part, so that the pressure condition in the actual working environment can be simulated, the air valve 9 is arranged on the air inlet pipe 10, and the opening or closing of the air inlet pipe 10 can be conveniently controlled, thereby realizing the accurate control of experimental pressure, and the experimental process is more flexible and controllable.
In addition, the automation and integration design of the pressure control assembly reduces the complexity of manual operation, improves the experimental efficiency, and simultaneously can obtain the experimental result faster and shorten the experimental period by accurately controlling the pressure and monitoring the leakage condition. And the air valve 9 can prevent that gas from accidentally entering the inside of the accommodating part 13 when gas is not required to be conveyed, so that the safety of the experimental process is improved, potential safety hazards can be timely found and processed by monitoring the pressure in real time, and the safe performance of the experimental process is ensured.
The embodiment is described by taking an experiment of the O-shaped rubber sealing ring 8 as an example, but the embodiment is not limited to the O-shaped rubber sealing ring 8, and can be used for low-temperature sealing performance experiments of rubber sealing rings with other shapes.
In a second aspect, there is provided a method for testing the low-temperature sealing performance of a rubber seal ring, the method being performed by using the testing apparatus as described above, as shown in fig. 4, and comprising:
s101, prefabricating a rubber sealing ring sample;
illustratively, a rubber seal sample is prefabricated according to the specific type, specification and model of the rubber seal to be tested, and a limiting piece is prefabricated by taking the rubber seal sample as a reference.
S102, placing the prefabricated rubber seal ring sample in a clamping assembly;
illustratively, the prefabricated limiting member and the rubber sealing ring are sequentially placed on the clamping assembly, wherein the limiting member and the rubber sealing ring are both positioned at the top of the lower clamping member, and then the upper clamping member and the lower clamping member are clamped and fixed by using the fastening member, so that the upper clamping member and the lower clamping member squeeze the rubber sealing ring.
S103, presetting experimental temperature and experimental pressure, and starting a temperature adjusting assembly and a pressure control assembly to test the rubber sealing ring sample placed in the clamping assembly.
The clamping assembly is placed in the accommodating cavity of the accommodating part, the clamping assembly is connected with the pressure control assembly through the conveying part, the experimental temperature is set on the accommodating part, the experimental pressure is set through the pressure control assembly, after the setting is completed, the experiment is started, and the temperature, the pressure and the performance change condition of the rubber sealing ring on the pressure gauge are observed every five minutes.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.