A temperature-controllable high-pressure high-speed reciprocating sealed experimental chamber
An experimental and cavity technology, which is used in fluid pressure actuation devices, fluid pressure actuation system testing, mechanical equipment, etc., can solve problems affecting the mechanical properties of the sealing substrate, achieve effective cooling, achieve temperature control effects, and ensure safety. sexual effect
Active Publication Date: 2020-09-22
TSINGHUA UNIV
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Problems solved by technology
[0004] The frictional heat generated during the reciprocating seal work will be transported away through the piston rod and the oil in the experimental cylinder, and because the lubricating film is thin, the surface temperature of the piston rod actually represents the temperature of the lubricating film, while the temperature of the oil in the cavity It represents the ambient temperature where the seal is located and affects the mechanical properties of the seal matrix
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[0018] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0019] refer to figure 1 , figure 2 and image 3 , a temperature-controllable high-pressure, high-speed reciprocating sealed experimental chamber, including an experimental cylinder and a cooling device, the cylinder 2 is fixed on the frame 1, the inner wall of the cylinder 2 is matched with the outer wall of the water jacket 28, and there are holes on the edge of the mating surface First welding spot 20 and the 4th welding spot 11, have outer oil inlet 16, outer temperature sensor mouth 15, outer water inlet 17, outer water outlet 29 on the cylinder body, have inner oil inlet 19 and The inner temperature sensor port 12 is placed coaxially with the outer oil inlet 16 and the outer temperature sensor port 15 respectively, the outer oil inlet 16 is connected with the hydraulic system, the outer temperature sensor port 15 is connected with the t...
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The invention discloses a temperature controllable high-pressure high-speed reciprocating seal experiment cavity. The temperature controllable high-pressure high-speed reciprocating seal experiment cavity comprises an experiment cylinder body and a cooling device. According to the temperature controllable high-pressure high-speed reciprocating seal experiment cavity, by fixing a thin water jacketto the inner wall of a thick cylinder body, the safety of an experiment device at the high pressure is ensured, and moreover, oil liquid in the cavity can be effectively cooled; through four welding spots, fixing of the water jacket is achieved, and cooling water is isolated from the oil liquid in the cavity; the inner wall of an end cover is provided with water grooves, water inlets and water outlets, the cooling water is sealed through low-pressure seals on the left sides and the right sides of the water grooves, a piston rod is directly cooled, in addition, the low-pressure seals are smallin friction force, and the influence on measurement of high-pressure reciprocating seal friction force is small; and the flow rate or the temperature of the cooling water can be subjected to feedbackcontrol through temperature signals obtained by a temperature sensor and an infrared imager, and the temperature control effect is achieved.
Description
technical field [0001] The invention belongs to the technical field of rubber and plastic reciprocating seals, in particular to a temperature-controllable high-pressure and high-speed reciprocating seal experiment cavity. Background technique [0002] Reciprocating seal refers to the dynamic seal that reciprocates between the sealing interfaces. It is the key core component to ensure the normal operation of hydraulic and pneumatic systems. Its performance affects the stability and safety of equipment. , automobiles and other modern industries play a very important role. The research on reciprocating seals has a history of more than 80 years, and the theoretical models and experimental simulations of this technology have been relatively mature under the conditions of low pressure and low speed. However, in recent years, with the continuous improvement of the assembly performance of the main engine, the research on reciprocating seals has to make breakthroughs in the directio...
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IPC IPC(8): F15B19/00F15B15/14F15B15/20
CPCF15B15/1423F15B15/1485F15B19/00
Inventor 郭飞项冲张兆想黄毅杰贾晓红索双富王玉明
Owner TSINGHUA UNIV