Novel hydrostatic bearing

A hydrostatic bearing, a new type of technology, applied in the direction of bearings, shafts and bearings, liquid cushion bearings, etc., can solve the problems of limited use range of throttling, slow response speed of fixed throttles, etc., achieve fast and stable axial accuracy, durability The effect of strong bearing capacity and maintaining axial accuracy

Pending Publication Date: 2022-05-13
浙江杭机股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the slow response speed of the fixed throttle, and the frequency response problem of the variable throttle, the range of throttling is limited to a certain extent.

Method used

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  • Novel hydrostatic bearing
  • Novel hydrostatic bearing
  • Novel hydrostatic bearing

Examples

Experimental program
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Embodiment

[0030] A new type of hydrostatic bearing, such as figure 1 As shown, it includes a bearing body 1, a bearing ring 2, a throttle 3 and a bearing cover 4. The throttle 3 includes a throttle cover 5 and a throttle body 6, and an oil inlet is formed between the throttle cover 5 and the throttle body 6. 7. The throttling body 6 is provided with an oil outlet 8, and the restrictor 3 is provided with a fixed throttling part 9 and a variable throttling part.

[0031] like Figure 4 , 5 As shown, the fixed throttling part 9 includes several concentrically arranged ring grooves 10, and radial grooves 11 connecting adjacent ring grooves 10, the ring grooves 10 are centered on the oil outlet 8, the ring grooves 10 and the radial grooves 11 Connect the oil inlet 7 and the oil outlet 8. The annular groove 10 and the radial groove 11 are arranged at one end of the throttling body 6 that fits the bearing body 1. The annular groove 10 and the radial groove 11 are formed by cutting on the thro...

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PUM

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Abstract

The invention discloses a novel hydrostatic bearing, and aims to overcome the defects that a radial hydrostatic bearing and an axial hydrostatic bearing are difficult to combine with an existing hydrostatic bearing, and response frequency and response speed are difficult to consider at the same time. The bearing comprises a bearing body, a bearing ring, a throttler and a bearing cover, the throttler comprises a throttling cover and a throttling body, an oil inlet is formed between the throttling cover and the throttling body, an oil outlet is formed in the throttling body, and the throttler is provided with a fixed throttling part and a variable throttling part. The bearing has the advantages of a fixed throttling device and a variable throttling device, a radial hydrostatic bearing and an axial hydrostatic bearing are combined, and the precision of the bearing is improved under the same machining and manufacturing conditions.

Description

technical field [0001] The invention relates to the field of precision machining, more specifically, it relates to a new type of hydrostatic bearing. Background technique [0002] With the continuous improvement of machine tools' requirements for high precision, high efficiency and surface roughness processing, the importance of static pressure dynamic and static pressure technology is increasing day by day. Good performance, high rotation accuracy / running accuracy, good adaptability, etc., can meet high precision and high efficiency, making hydrostatic bearings, hydrostatic guide rails, and hydrostatic screw screws more and more developed and applied, especially in large machine tools, Large-scale machine tools and precision instruments are widely used. Hydrostatic bearings are divided into radial hydrostatic bearings and axial hydrostatic bearings, which bear radial force and axial force (machine tool load) respectively. For small-sized hydrostatic bearings, radial beari...

Claims

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Application Information

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IPC IPC(8): F16C32/06
CPCF16C32/0629F16C32/0655
Inventor 黄春韶周哲平李志斌江余岳王咏辉
Owner 浙江杭机股份有限公司
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