A tool for testing the air tightness of the oil channel of the automatic transmission case

A technology of air tightness detection and automatic transmission, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problem of inability to judge the mutual penetration of oil passage holes and oil passages, and false detection , Affect the reliability of test results and other issues, to avoid quality risks, avoid false detection, and improve reliability

Active Publication Date: 2017-07-28
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, through the unified sealing of the existing bearing holes, it is impossible to judge whether there is a phenomenon that the oil passages are connected to each other, which will lead to false detection, affect the reliability of the detection results, and have quality risks

Method used

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  • A tool for testing the air tightness of the oil channel of the automatic transmission case
  • A tool for testing the air tightness of the oil channel of the automatic transmission case
  • A tool for testing the air tightness of the oil channel of the automatic transmission case

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Embodiment Construction

[0028] The core of the present invention is to provide an automatic transmission casing oil channel air tightness detection tool, in order to realize the separate sealing of the oil channel holes in the case where multiple oil channels communicate with the same bearing hole, so as to avoid False detection occurs when the oil passage is penetrated, which improves the reliability of the detection results and avoids quality risks.

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Please refer to figure 2 and image 3 , figure 2 It is a structural schematic diagram of a specific embodiment of the detection tool provided by the present invention; image 3 for figure 2 An exploded view of the inspection tooling shown.

[0031] In a specific embodiment, the automatic transmission housi...

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Abstract

The invention discloses a tool for detecting the air tightness of the oil channel of an automatic transmission case, which includes a bottom block installed on the bottom plate, a top block assembly including a top cover fitted with the casing, and a top cover fitted in a bearing hole. The ring and the guide post are slidably installed on the top cover through the guide slider. The sliding direction of the guide post relative to the top cover is the direction close to or away from the bearing hole; Blocking block, there is an elastic piece between the blocking block and the top ring, and when the elastic piece is in a compressed state under the pressure of the guide post, the blocking block passes through the through hole and is inserted into the oil passage communicating with the bearing hole. In this way, the sealing of the oil passage connected to the bearing hole through the sealing effect enables the individual sealing of the oil passage hole at that place when multiple oil passages communicate with the same bearing hole, thereby avoiding the False detection occurs when the oil passage is penetrated, which improves the reliability of the detection results and avoids quality risks.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to a tool for testing air tightness of an oil channel of an automatic transmission case. Background technique [0002] The gearbox housing is the carrier of the entire gearbox, on which there are multiple oil passages for hydraulic pressure and lubrication. In order to ensure the strict sealing of the oil passage of the casing, the casing needs to be tested for tightness (that is, leak test) before assembly. At present, the commonly used airtightness testing methods in the industry include airtightness testing and liquid tightness testing, and airtightness testing is more widely used because of the convenience of gas medium. During the air tightness test, it is necessary to effectively block the openings of the oil passages, and then the inflation measurement can be carried out. [0003] For a gearbox case where multiple oil passages communicate with the same bearing hol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28
Inventor 丁兆福李亚琼王文浩胡禅
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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