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Automatic gearbox shell oil duct air tightness detection tool

A technology of air tightness detection and automatic transmission, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve false detection, affect the reliability of detection results, and fail to judge oil Problems such as the interpenetration of oil passages in oil passages, etc., to avoid false detection, avoid quality risks, and improve reliability

Active Publication Date: 2015-11-11
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • 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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  • Automatic gearbox shell oil duct air tightness detection tool
  • Automatic gearbox shell oil duct air tightness detection tool
  • Automatic gearbox shell oil duct air tightness detection tool

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Embodiment Construction

[0031] 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.

[0032] 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.

[0033] 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.

[0034] In a specific embodiment, the automatic transmission housi...

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Abstract

The invention discloses an automatic gearbox shell oil duct air tightness detection tool comprising bottom plugging blocks mounted on a bottom plate. A top plugging assembly comprises a top cover which fits a shell, a top ring which sleeves a bearing hole, and a guide column which is mounted on the top cover in a sliding manner through a sliding guide member, wherein the sliding direction of the guide column relative to the top cover is the direction near or away from the bearing hole, the periphery of the top ring is provided with a via hole, a plugging block is arranged on the circumference of the guide column, an elastic member is arranged between the plugging block and the top ring, and the plugging block passes through the via hole and is inserted into an oil duct communicated with the bearing hole when the elastic member is compressed under pressing of the guide column. Therefore, based on plugging of oil ducts communicated with the bearing hole realized through a plugging function, an oil duct hole can be separately plugged when multiple oil ducts are communicated with the same bearing hole, false detection occurring when oil ducts are communicated is avoided, the reliability of detection results is improved, and the quality risk is avoided.

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 Applications(China)
IPC IPC(8): G01M3/28
Inventor 董辉
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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