Bearing airtightness detector

Abstract

The invention discloses a bearing airtightness detector. A lower template of a rack is provided with one or more groups of detection positions, wherein each group of detection positions comprise the first position and the second position. The lower surface of an upper die seat is fixedly provided with a first circular truncated cone at the first position. The interior of a die cavity of the upper surface of the lower temperature cooperating with the first circular truncated cone is provided with a first air guide pipe and a first sealing ring. The lower surface of the upper die seat is fixedly provided with a second circular truncated cone at the second position. The second circular truncated cone at the first position is provided with a second air guide pipe and a second sealing ring. An output air duct of a pressure transmitter is connected with the first and second air guide pipes through pressure maintaining and reducing valves. The upper die seat is fixed on an upper die frame, and a first thrust pipe on the upper die seat is connected with an air pipe, wherein the air pipe is connected to a fixed platform. The detector carries out the detection of the front and back surfaces of a bearing through two different positions, can detect any air-leaking surface of the bearing, and completely guarantees the airtightness of the bearing. The upper die seat and the connection structure of the first and second circular truncated cones facilitate the exchange and detection of different types of bearings, and greatly reduce the machining cost. The first and second sealing rings are installed at different detection positions, so the installation position of a detection surface continuously remains stable, and the sealing performance remains good.

Description

technical field [0001] The invention relates to a bearing detection device, in particular to a bearing air tightness detector used for detecting the air leakage of a bearing. Background technique [0002] In order to solve the higher requirements of users, bearing manufacturers now need to ensure the airtightness of bearings in some specific places, such as underwater and high-pressure workplaces. And students, a wide variety. [0003] Patent application number 201410120704.2 "Bearing air tightness detector", although it also provides a device for detecting whether the bearing is leaking, but it can only detect the bearing with air leakage on both ends of the bearing, and cannot detect the bearing with air leakage on one side Bearings have great limitations. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a bearing air tightness tester, which can detect the air leakage on any side of the bearing and the size of...

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Problems solved by technology

[0003] Patent application number 201410120704.2 "Bearing air tightness detector", although it also provides a device to detect whether the bearing is leaking, but it can only detect the bearing with air leakage on both ends of the bearing, and cannot detect the bearing with air leakage on one side bearings, there are significant limitations

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