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Rolling element accommodating belt for linear guide apparatus and linear guide apparatus

A technology of rolling elements and guiding devices, applied in the direction of linear motion bearings, shafts and bearings, metal processing machinery parts, etc., can solve the problems of reducing the usability of installation operations

Active Publication Date: 2009-03-11
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reduces usability for installation operations

Method used

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  • Rolling element accommodating belt for linear guide apparatus and linear guide apparatus
  • Rolling element accommodating belt for linear guide apparatus and linear guide apparatus
  • Rolling element accommodating belt for linear guide apparatus and linear guide apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0293] figure 1 is a perspective view of a linear guide according to a first embodiment of the linear guide provided with the rolling element accommodation belt used therein according to the invention. Figure 2 is a view for illustration figure 1 Cross-section of the carriage of the central linear guide. Fig. 3 is a sectional view along line X-X in the linear guide of Fig. 2 .

[0294] Such as figure 1 As shown in FIG. 2 , the linear guide 10 includes a guide rail 12 having a rolling element guide surface 14 and a slider 16 straddling the guide rail 12 so that the slider can move relative to the guide rail 12 .

[0295] The guide rail 12 has a square cross-sectional shape having four strip-shaped rolling element guide surfaces 14 each for one of two sides formed linearly in the longitudinal direction.

[0296] Such as figure 1 The shown slider 16 includes a slider body 17 and end caps 22 mounted on both ends of the slider body 17 in the axial direction. The axially c...

no. 2 example

[0346] Next, a linear guide according to a second embodiment of the present invention will be described. In this embodiment, the configuration is the same as that of the first embodiment except that a part of the structure of the rolling element accommodating belt is different. Therefore, only the difference on the rolling element accommodating belt will be described, and other parts will not be described.

[0347] As shown in FIG. 12 , the rolling element accommodation belt 72 has two kinds of spacers, namely, spacers 54 and spacers 55 . These spacers are alternately arranged in the alignment direction of the balls so that two types of rolling element accommodation portions, rolling element accommodation portions A and rolling element accommodation portions B, are alternately formed in the alignment direction of the balls 46 . The rolling element accommodating belt 50 according to this embodiment is different from that of the first embodiment in that these spacers 54, 55 eac...

no. 3 example

[0354] Next, a linear guide according to a third embodiment of the present invention will be described. In this embodiment, the configuration is the same as that of the above-mentioned embodiment except for the partial structure of the rolling element accommodating belt. Therefore, only the difference on the rolling element accommodating belt will be described, and other parts will not be described.

[0355] As shown in FIG. 13 , the rolling element accommodating belt 73 is different from the rolling element accommodating belt 50 according to the first embodiment in that it has two kinds of spacers, that is, a spacer 56 and a spacer 57; The directions are alternately arranged, that is, the rolling element accommodating portions A and the rolling element accommodating portions B are alternately formed in the direction in which the balls 46 are arranged.

[0356] The spacers 56 , 57 each have a nearly rectangular shape when viewed from their alignment direction, but their front...

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PUM

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Abstract

There is provided a rolling element accommodating belt for a linear guide apparatus which has a guide rail, a slider having a load rolling element guiding face which constitutes a rolling element track path together with the guide rail, a pair of direction converting paths and a rolling element return path, a plurality of rolling elements circulating within an endless circulation path defined by the rolling element track path, the pair of direction converting paths and the rolling element return path; and a guide groove. The rolling element accommodating belt includes a plurality of spacer portions interposed between the rolling elements, coupling arms to be guided by the guide grooves and rolling element accommodating portions accommodating the rolling element. The spacer has an inward abutting face abutting on the rolling element so as to prevent the rolling element from moving to an inner diameter side of the endless circulation path.

Description

technical field [0001] The present invention relates to a rolling element accommodating belt for a linear guide provided with such a rolling element accommodating belt and a linear guide. Background technique [0002] Such a linear guide includes a guide rail having rolling element guide surfaces and a slide block slidably arranged relative to the guide rail. The slider has loaded rolling element guide surfaces which together form rolling element track channels. In addition, the slider includes a pair of direction changing passages respectively leading to both ends of the rolling element track passage and a rolling element returning passage leading to the pair of direction changing passages. These rolling element track channels, a pair of direction changing channels and rolling element return channels form a circular circulation channel. Many rolling elements circulate and roll on this endless track. In the annular circulation channel, guide grooves are formed inwardly al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/01F16C29/06
Inventor 松本淳水村美典
Owner NSK LTD
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