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Mechanical seal testing device for aviation pump

A mechanical seal and test device technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, can solve the problems of increased fuel consumption, achieve the effects of easy disassembly, accurate test results, and reduced test costs

Active Publication Date: 2018-11-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relevant studies have shown that the unplanned engine replacement rate caused by sealing problems is as high as 32% to 50%, and the increase in fuel consumption caused by leakage is 7%

Method used

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  • Mechanical seal testing device for aviation pump
  • Mechanical seal testing device for aviation pump
  • Mechanical seal testing device for aviation pump

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0032] Such as Figure 1 to Figure 7 As shown, a kind of aviation pump mechanical seal test device provided by the present invention includes a test bench base 7, which is provided with a shaft tail loading force device 1, a test chamber 2, a lubricating device 3, and a torque sensor connected in sequence on the test bench base 7. 4 and the servo motor 5, the end of the main shaft 27 is connected with the servo motor 5, the other end of the main shaft 27 is sequentially passed through the torque sensor 4, the lubricating device 3 and the test chamber 2, and the end of the shaft loading device 1 is the end of the main shaft 27. The part provides loading force, the lubricating device 3 provides lubrication for the rotation of the main shaft 27, the torque sensor 4 detects the torque of the main shaft 27, and the servo motor 5 controls the rotating spee...

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PUM

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Abstract

The invention discloses a mechanical seal testing device for an aviation pump. The mechanical seal testing device comprises a test bed base; a shaft tail loading force device, a testing cavity, a lubricating device, a torque sensor and a servo motor which are sequentially connected are arranged on the test bed base; the end part of a main shaft is connected to the servo motor; the other end of themain shaft penetrates through the torque sensor, the lubricating device and the testing cavity in sequence; the shaft tail loading force device provides loading force for the end part of the main shaft; the lubricating device provides lubrication for the rotation of the main shaft; the torque sensor detects the torque of the main shaft; the servo motor controls the rotation speed of the main shaft; a tension and pressure sensor and a connecting rod are further arranged between the shaft tail loading force device and the testing cavity; the end part of the tension and pressure sensor is connected to the shaft tail loading force device; the other end of the tension and pressure sensor is connected to the end part of the connecting rod; and the other end of the connecting rod is connected tothe testing cavity.

Description

technical field [0001] The invention belongs to the technical field of mechanical seal test devices, in particular to an aviation pump mechanical seal test device. Background technique [0002] Aviation hydraulic pumps are an important part of modern aircraft hydraulic systems. Relevant studies have shown that the unplanned engine replacement rate caused by sealing problems is as high as 32% to 50%, and the increase in fuel consumption caused by leakage is 7%. Therefore, the reliability of the mechanical seal is particularly important. [0003] As a widely used rotary shaft dynamic sealing technology, mechanical seal is of great significance in aerospace. It is of great significance to study the failure mode of mechanical seals and predict the life of mechanical seals through life tests to improve the quality, reliability and safety of mechanical seals. [0004] The load applied to the sealing ring is divided into: sealing medium pressure, spring pressure, transmission fo...

Claims

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Application Information

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IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 刘宇黎书瑞潘慧龙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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