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Linear guide apparatus and rolling elements accommodation belt

A technology of rolling elements and guiding devices, which is applied to bearing elements, linear motion bearings, shafts and bearings, etc., can solve the problems of difficult transmission of compression force, etc., and achieve the effect of reducing tension and excellent durability

Inactive Publication Date: 2008-08-20
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, since the distal ends of the rolling element accommodating belts are deviated from their normal positions in the direction in which the distal ends are away from each other, even if they are brought into contact with each other, it is difficult to make the distal ends of the rolling element accommodating belts move along the direction of travel of the rolling element accommodating belts. Transmits compressive force at the height of the guide arm

Method used

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  • Linear guide apparatus and rolling elements accommodation belt
  • Linear guide apparatus and rolling elements accommodation belt
  • Linear guide apparatus and rolling elements accommodation belt

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0072] Firstly, FIGS. 1 to 4 show a first embodiment of a linear guide 100 according to the invention.

[0073] As shown in FIGS. 1 and 2 , the linear guide 100 is mainly composed of a linearly extending guide rail 10 and a slider (slider) 20 having a downwardly oriented U-shaped cross section and forming a sliding engagement with the guide rail 10 . to straddle the track.

[0074] The guide rail 10 is formed of a metal material, the guide rail 10 is formed into a square shape in cross section, and lower rolling element raceway surfaces 11a, 11a are formed on both side surfaces of the guide rail 10, respectively, so as to follow the longitudinal direction of the guide rail 10. extend continuously.

[0075] On the other hand, slider-side lower rolling element raceway surfaces 21a, 21a are respectively formed on both inner side portions of the slider 20 so as to face the lower rolling element raceway surfaces 11a, 11a of the guide rail 10, respectively. The lower rolling eleme...

no. 2 example

[0094] Next, FIGS. 5 to 8 show a second embodiment of the linear guide 100 according to the present invention, and the same reference numerals will be given to those parts that are the same as those of the first embodiment in order to omit repetition of similar descriptions.

[0095] As shown in the figure, in this embodiment, as in the case of the first embodiment, each of the rolling element accommodating belts 50 as provided in each of the rolling element circulation paths 30a, 30a, 30b, 30b A cantilever-shaped elastically deformable protrusion 53 at the end, provided with a hook-shaped protrusion 53 composed of a connecting portion 53a and a rolling element contact portion 53b, and from each of the rolling element circulation paths 30a, 30a, 30b, 30b The outer circumferential side protrudes toward the inner circumferential side, wherein the connecting portion 53a protrudes in the longitudinal direction from the end face of the spacer 51a at the end face of the belt, and the...

no. 3 example

[0101] Next, FIGS. 9 and 10 show a third embodiment of a linear guide 100 according to the present invention, which is an example of improvement made to the second embodiment. In addition, the same reference numerals will be given to the same parts as those of the first and second embodiments in order to omit repetition of similar descriptions.

[0102] As shown in the figure, in this embodiment, as in the case of the second embodiment, as a cantilever-shaped elastically deformable protrusion 53 at each end of the rolling element accommodating belt 50, a hook-shaped protrusion 53 is provided, which Consists of a connecting portion 53a protruding in the longitudinal direction from the end face of the spacer 51a at the end face of the belt, and a rolling element contact portion 53b continuous from the connecting portion 53a, and the hook The shape protrusion 53 extends from the outer circumferential side toward the inner circumferential side of each of the rolling element circul...

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PUM

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Abstract

A linear guide including: a plurality of rolling elements circulating in a rolling element circulation path at predetermined intervals; a spacer provided between each rolling element; and a rolling element receiving belt accommodating the rolling elements, Each spacer also has an end of the rolling element receiving band. At least one rolling element is arranged between the ends of the rolling element receiving belt, on the end face of the spacer located at the end of the rolling element receiving belt, there is provided a cantilever-shaped elastically deformable protrusion, which protrudes from the rolling element circulation path The inner circumferential side protrudes toward the outer circumferential side, and the protrusion is inclined relative to the outer end surface of the spacer at the end of the rolling element accommodating belt.

Description

technical field [0001] The present invention relates to a linear guide used on various types of machines such as manufacturing equipment, processing machines, and measuring equipment, and a rolling element accommodation belt applied to the linear guide. Background technique [0002] A linear guide device that guides a guide member linearly while circulating a plurality of rolling elements inside it is a device that includes a slider supported on a guide rail so as to travel in an axial direction by a plurality of rolling elements, so The plurality of rolling elements are provided in a rolling element rolling path formed between the track side rolling element raceway surface and the slider side rolling element raceway surface which are arranged to face each other. [0003] In addition, the linear guide includes an endless rolling element circulation path in which the rolling element rolling path and the rolling element disposed in the slider so as to extend substantially para...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C29/06
CPCF16C29/0647F16C33/3825
Inventor 水村美典徐炜
Owner NSK LTD