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Loading hydraulic cylinder

A technology for loading cylinders and hydraulic cylinders, applied in the direction of fluid pressure actuators, engine seals, engine components, etc., can solve problems such as destructive effects, high temperature, etc., to improve loading force, ensure accuracy, and reduce error rate Effect

Inactive Publication Date: 2018-10-19
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that high-speed and heavy-load tests often produce higher temperatures, and high temperatures have destructive effects on conventional hydraulic loading mechanisms composed of rubber components, the present invention further proposes a loading hydraulic cylinder

Method used

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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 Describe this embodiment, a loading hydraulic cylinder described in this embodiment, which includes a loading cylinder 1 and a loading piston 2, a cavity 1-1 is provided in the loading cylinder 1, and the loading piston 2 is inserted through the right end surface of the loading cylinder 1. Installed in the cavity 1-1, this embodiment also includes a sealing ring 3, the inner wall of the loading cylinder 1 is provided with a first matching groove 1-2 along the circumferential direction, and the sealing ring 3 is set in the first matching groove 1-2 , The sealing ring 3 is made of high temperature resistant polytetrafluoro material. PTFE material refers to polytetrafluoroethylene material.

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 1 Describe this embodiment, a loading hydraulic cylinder described in this embodiment also includes a guide belt 4, and a second matching groove 1-3 is formed on the inner wall of the loading cylinder 1 along the circumferential direction, and the guide belt 4 is set in the second matching groove 1-3, and the guide belt 4 is located on the left side of the sealing ring 3. The guide belt 4 can effectively straighten the loading piston 2, avoid its deviation, provide a guarantee for the safety of the test, and at the same time ensure the accuracy of the test results, reduce errors, and enable the load to be applied correctly and effectively. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the guide belt 4 of a loading hydraulic cylinder described in this embodiment is an annular guide belt with a rectangular cross section, and the guide belt 4 is made of high temperature resistant polytetrafluoroethylene. PTFE material refers to polytetrafluoroethylene material. Such setting can effectively improve the service life of the guide belt 4 and enable the load to be effectively applied. Other components and connections are the same as those in the second embodiment.

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Abstract

The invention belongs to the field of mechanical equipment and relates to a hydraulic cylinder, in particular to a loading hydraulic cylinder. The loading hydraulic cylinder is provided for solving the problems that the high temperature is usually generated in a high-speed and heavy-duty test and has destructive influence on a conventional hydraulic loading mechanism composed of rubber assemblies.The loading hydraulic cylinder comprises a loading cylinder and a loading piston. The loading cylinder is internally provided with a cavity. The loading piston penetrates through the right end face of the loading cylinder to be inserted in the cavity. The loading hydraulic cylinder further comprises a seal ring. The inner wall of the loading cylinder is provided with a first matching groove in the circumferential direction. The seal ring is mounted in the first matching groove in a sleeved mode. The seal ring is made of a high-temperature-resistant Teflon material.

Description

technical field [0001] The invention relates to a hydraulic cylinder, in particular to a loading hydraulic cylinder, which belongs to the field of mechanical equipment. Background technique [0002] The quality of aviation bearings directly affects the service life of the engine and the safety performance of the aircraft. Therefore, the quality assessment of the test bearings is particularly important. The comprehensive performance test is a direct means to assess the performance and life of the bearing. The main parameters of the bearing test include speed, load, oil inlet temperature, oil return temperature, etc. The correct and effective application of the load directly affects the results of the bearing test assessment. High speed and heavy load tests often generate high temperatures, which have a destructive effect on conventional hydraulic loading mechanisms composed of rubber components. Contents of the invention [0003] In order to solve the problem that high-sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20F16J15/3204
Inventor 杨明亮栾景燕闫众孙明辉安浩俊王振元边立春张大鹏张翔宇李慧徐耀强
Owner AVIC HARBIN BEARING