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Test equipment and test methods for rotor support bearings of screw refrigeration compressors

A refrigeration compressor and rotor support technology, applied in the direction of mechanical bearing testing, etc., can solve the problems of equipment sealing performance, etc., to achieve the effect of good sealing, simple structure, and no deterioration

Active Publication Date: 2020-09-25
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original bearing test equipment and test methods do not strictly deal with the sealing performance of the equipment, and are not suitable for related tests on the rotor support bearings of screw refrigeration compressors, which requires a special rotor support for screw refrigeration compressors Bearing test equipment and test methods

Method used

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  • Test equipment and test methods for rotor support bearings of screw refrigeration compressors

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, the test equipment for the screw refrigeration compressor rotor support bearing includes a test head assembly, a lubrication system for supplying test lubricating oil, and a radial loading device. The radial loading device includes a loading sleeve 10 that can be used to load the bearing 2 The loading head 4 that applies radial load, the lubrication system includes a lubricating oil tank, the test head assembly includes a test bearing installation shaft 1, the test bearing installation shaft 1 is a rotating shaft that can drive the inner ring of the test bearing 3 to rotate, and a test bearing is arranged on it 3, the installation position of the test bearing 3 is provided with a sealing device outside, the sealing device includes a cylinder body 12 and an end cover 11, and the cylinder body 12 and the end cover 11 are sealed to form a sealed chamber to install the test bearing 3 The position is closed inside; the test bearing installation sha...

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Abstract

The invention relates to a test device and a test method for a rotor support bearing of a screw type refrigeration compressor. The test device comprises a test head assembly, a lubrication system forproviding test lubricating oil and a radial loading device. The test head assembly comprises a rotatable test installation shaft, which is provided with a test bearing installation position; a sealingdevice is arranged outside the test bearing installation position; the test bearing installation position is enclosed in a sealed chamber formed therein via the sealing device; the sealed chamber isconnected with the lubricating system in sealing; a loading head of the radial loading device stretches into the sealed chamber and is in sealing fit with the sealed chamber; the test method comprisesthe steps of applying test load for the bearing under a sealed condition, providing lubricating fluid, carrying out water removal treatment on the test environment before providing the lubricating fluid, and carrying out water avoidance treatment on the lubricating fluid in the test process. The bearing test device has good sealing performance; and the test method can ensure a lubrication environment for testing the bearing and can detect the performance of the bearing better.

Description

technical field [0001] The invention belongs to the technical field of bearing tests, and in particular relates to a test device and a test method for a screw type refrigeration compressor rotor support bearing. Background technique [0002] Bearings are a common support device used to support various rotating shafts. The bearings used in one type of equipment have particularly high performance requirements for the bearings, and this kind of bearings require specific lubricating oil lubrication, and the use environment of the specific lubricating oil There are also specific requirements, such as screw refrigeration compressors, the core component of which is the screw rotor, and the stability of the screw rotor support bearing determines the stability of the screw rotor, which directly determines the performance of the screw refrigeration compressor. Since the screw rotor support bearing is lubricated with refrigerated oil, which has high hygroscopicity, it will deteriorate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 吴易明马聪李斑虎杨啸王宝磊宋思明
Owner LUOYANG BEARING RES INST CO LTD