High precision overloading composite bearing structure

A composite bearing, high-precision technology, used in grinding drives, parts of grinding machine tools, metal processing equipment, etc., can solve the problems of low rotation accuracy and small bearing bearing capacity, and achieve high rotation accuracy and bearing capacity. big effect

Inactive Publication Date: 2007-02-07
SHANGHAI MACHINE TOOL WORK
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of low bearing capacity and low rotation accuracy of the headstock spindle bearings of existing roll grinders and cylindrical grinders, and at the same time reduce the processing difficulty and assembly difficulty of the headstock, and provide a high-precision heavy-duty composite bearing structure

Method used

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  • High precision overloading composite bearing structure

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Embodiment Construction

[0011] Such as figure 1 As shown in , the high-precision heavy-duty composite bearing structure of the grinding machine head frame consists of top 1, spindle 2, axial hydrostatic bearing 3, radial hydrostatic bearing 4, inner cone rolling bearing 5, thrust bearing 6, end cover 8, Adjust the composition of elastomer 7 and so on.

[0012] The two ends of the shaft shoulder at the front end of the main shaft 2 are respectively equipped with an axial hydrostatic bearing 3 and a radial hydrostatic bearing 4, and the axial hydrostatic bearing 3 and the radial hydrostatic bearing 4 are fixedly connected, and the It is fixedly connected in the front support of the main shaft box; the axial hydrostatic bearing 3 is fixedly connected with the front support of the radial hydrostatic bearing 4 and the main shaft box with bolts.

[0013] The bearings at the rear end of the main shaft 2 are installed in turn with an inner cone rolling bearing 5, a thrust bearing 6, and the rear end of the ...

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Abstract

The invention relates to a high-accuracy heavy load composite bearing, which comprises a main axle, an inner taper rolling bearing, a pushing bearing, an end cover, an axially static bearing, a radial static bearing and an elastomer, wherein two ends of front axial should of main axle are mounted with axial static bearing and radial static bearing which are connected and fixed inside the front support of main axle box via the axial static bearing; the back end of main axle is mounted with inner taper rolling bearing, pushing bearing; the back end of pushing bearing via the elastomer is axially connected to the end cover; the end cover is fixed with the back support of main axle box. The inventive bearing system has high support ability, high rotation accuracy, which can support the 20t work piece to be grinded.

Description

technical field [0001] The invention relates to a heavy-duty composite bearing used in the machine tool industry, in particular to a high-precision composite bearing used for the headstock of a heavy-duty grinder and the headstock of a heavy-duty lathe. Background technique [0002] At present, on domestic and foreign high-precision heavy-duty roll grinders and high-precision heavy-duty cylindrical grinder headstocks, the spindle bearings of the live spindle are mostly rolling bearings. Its bearing capacity is small, and the rotation accuracy is not high, and the bearing must be imported from abroad. This directly affects the quality of workpiece processing and restricts the improvement of machine tool precision. Contents of the invention [0003] The present invention aims to solve the problems of low bearing capacity and low rotation accuracy of the headstock spindle bearings of existing roll grinders and cylindrical gri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B47/12
Inventor 段斌华夏萍林惟杰张定孟
Owner SHANGHAI MACHINE TOOL WORK
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