Spindle unit of bearing detecting device

A bearing testing and spindle technology, applied in mechanical bearing testing, bearings, shafts and bearings, etc., can solve problems such as decreased accuracy, rear bearing wear, easy oil leakage, etc., to reduce testing costs, prolong life, and expand the scope.

Inactive Publication Date: 2011-05-11
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The driving part is composed of multiple parts, with low integration, easy oil leakage, and inconvenient disassembly. After long-term use, the bearing bush wears out, and the accuracy drops seriously, which cannot meet the accuracy requirements of bearing inspection.

Method used

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  • Spindle unit of bearing detecting device
  • Spindle unit of bearing detecting device

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Experimental program
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Embodiment Construction

[0008] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0009] As shown in Figure 1, the main shaft unit of the bearing detection device includes a main shaft 5, two bearings 3 supporting the main shaft, and four sealing rings respectively located on both sides of the two bearings, one of which is equipped with two bearings and four sealing rings A sleeve 4 and two end caps 1 located at both ends of the sleeve. The two bearings 3 are two hydrostatic bearings; the center of one end of the main shaft 5 has a Morse taper hole 7 for installing a special mandrel for testing; the center of the rest of the main shaft has a central hole 8 for a special mandrel for unloading testing ; The other end of the main shaft protrudes from the end cover 1 and has a keyway 6 connected to the driving device; the end 1 is fixedly connected to the end of the sleeve 4 through the screw hole 10 on which the screw passes.

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PUM

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Abstract

The invention relates to a spindle unit of a bearing detecting device, comprising a spindle, two bearings for supporting the spindle, four seal rings, a sleeve and end covers, wherein the four seal rings are arranged at two sides of the bearings, the sleeve is used for installing the bearing and the seal rings, and the end covers are arranged at two ends of the sleeve; the two bearings are hydrostatic bearings, one end of the spindle center is provided with Morse taper holes, other parts of the spindle are central holes of a core rod special for unloading tests, and other end of the spindle extends out of the end covers and is provided with a key groove. The pressure oil in the hydrostatic bearings can cause the spindle to float upwards while being static to break away from bearing bushes, thus lowering the bearing bush abrasion, prolonging the service life and improving the precision. The hydrostatic bearings can bear larger radial load, can measure larger bearings, and can enlarge the detection range and lower the detection cost.

Description

technical field [0001] The invention relates to a bearing detection device, in particular to a main shaft unit of the bearing detection device. Background technique [0002] With the advancement of science and technology, industrial machinery and equipment are becoming more and more sophisticated and integrated, which puts forward high requirements for the components of machinery and equipment. Rolling bearings are widely used parts. If the bearing quality is not up to standard, it will cause troubles to the normal operation of mechanical equipment. Therefore, bearing detection technology has developed rapidly in recent years. In order to test rolling bearings, it is first necessary to provide a spindle unit with higher precision than rolling bearings. At present, the driving components used in the bearing detection device are: the motor drives the main shaft, and the main shaft is supported by ordinary sliding bearings. The driving part is composed of multiple parts, wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04F16C32/06F16J15/18
Inventor 刘亮廉珂孙桂清孙春宇翟宇毅邵皓骏
Owner SHANGHAI UNIV
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