CN204878324U - Linear guide device - Google Patents
Linear guide device Download PDFInfo
- Publication number
- CN204878324U CN204878324U CN201520161133.7U CN201520161133U CN204878324U CN 204878324 U CN204878324 U CN 204878324U CN 201520161133 U CN201520161133 U CN 201520161133U CN 204878324 U CN204878324 U CN 204878324U
- Authority
- CN
- China
- Prior art keywords
- rolling element
- guide rail
- cylindrical roller
- arm
- steering channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model relates to a linear guide device, its characterized in that, the device have the guiding groove that the clamp was equipped with the distance piece and formed between cylindrical roller adjacent each other, this guiding groove along the arm of cylindrical roller's circulation direction guide distance piece on the slider. Make the width of the groove width ratio arm of this guiding groove wide to the groove width degree of the groove width ratio of the guiding groove of messenger in the orientation conversion route region guiding groove in the linear motion region is wide, and in the R chamfer portion that is equipped with on the both ends of cylindrical roller's circulation orientation of arm.
Description
Technical field
The utility model relates to the linear guide rail device be such as used in field of industrial machinery etc.
Background technique
In recent years, there is following one as linear guide rail device, this linear guide rail device have the guide rail that linearly extends and with can the mode of linearly relative movement across frame slide block on the guideway.On the bi-side of the width direction of guide rail, every side forms 2 and arranges the rolling element raceway being formed with 4 row altogether and linearly extending respectively, on the inner side surface in two sleeve portions in the slider body of slide block, be formed with the rolling element raceway corresponding with above-mentioned rolling element raceway respectively.
But, for movement in rolling element raceway rolling element and employ cylindrical roller, thus, worry mobile in cylindrical roller 6 there is axial runout, i.e. so-called deflection and cause action to worsen.
In light of this situation, between cylindrical roller adjacent one another are, clamp spacer element, thus, prevent cylindrical roller direct contact each other, and suppress above-mentioned deflection, thereby, it is possible to make that the movement of slide block 2 is smooth and easy to be carried out, and seek mobile in noise reduce.
In linear guide rail device in the past, the region in region and direction transduction pathway that the well width of steering channel, cylindrical roller carry out straight line motion is all set to same widths, thus, if set the well width of desirable steering channel in straight-line movement section, then the arm of spacer element and steering channel can interfere in transduction pathway region, direction.
Therefore, in the past, in transduction pathway region, direction, the well width of steering channel is set as the width can not interfered with arm, and using the well width of this width as the steering channel in straight-line movement section and transduction pathway region, direction.But in this case, the well width of the steering channel in straight-line movement section becomes wide compared with perfect condition, and the gap size between the arm of spacer element and steering channel becomes excessive in straight-line movement section.
In this case, due in Infinite Cyclic raceway, spacer element and cylindrical roller are moved by the pushing of the cylindrical roller at rear, if so the gap size between the arm of spacer element and steering channel is excessive in straight-line movement section, then can produce warpage motion and the size between the roller core of cylindrical roller adjacent one another are is significantly changed on spacer element, harmful effect can be produced to action.
Model utility content
The utility model provides a kind of linear guide rail device, it is interfered with the inner circle wall of steering channel in transduction pathway region, direction by preventing the arm of spacer element, and can make roller with the state of spacer element main body close contact under roll, thus prevent from being interposed between roller in transduction pathway region, direction and change, thus, vibration can be suppressed and guarantee stable action, and the life-span extending spacer element can be sought.
The utility model in order to solve above-mentioned problem, and provides a kind of linear guide rail device, and it has: the guide rail linearly extended, and described guide rail has the rolling element raceway linearly extended at two end part, slide block, it has the rolling element raceway corresponding with the described rolling element raceway of this guide rail, with the multiple cylindrical rollers as rolling element, it is inserted between described guide rail and the described rolling element raceway of described slide block, the feature of this linear guide rail device is to have spacer element, and it has: be installed in the spacer element main body between described cylindrical roller adjacent one another are, and configure and the arm be wholely set with described spacer element main body in the mode of at least one end face of the axis in the face of this cylindrical roller, described slide block has: slider body, and it has the rolling element path linearly run through, with a pair end cap, its have by between described two rolling element raceways with the forniciform direction transduction pathway of described rolling element communication, and this pair of end lid is fixed in the both ends of the surface of the rectilinear direction of described slider body, and be provided with steering channel, when described cylindrical roller is between described two rolling element raceways, when described direction transduction pathway and described rolling element path Inner eycle, described steering channel guides the described arm of described spacer element along the loop direction of described cylindrical roller, make the well width of described steering channel wider than the width of described arm, and it is wide to make the well width of the described steering channel in the region of described direction transduction pathway carry out the well width of this steering channel in the region of straight line motion than described cylindrical roller.
In addition, the feature of above-mentioned linear guide rail device is, is preferably, the two end part of the loop direction towards described cylindrical roller of described arm implement chamfering.
In addition, the feature of above-mentioned linear guide rail device is, be preferably, the chamfering of described arm is R chamfered section.
The effect of model utility
According to linear guide rail device, interfere with the inner circle wall of steering channel in transduction pathway region, direction by preventing the arm of spacer element, and can make roller with the state of spacer element main body close contact under roll, thus prevent from being interposed between roller in transduction pathway region, direction and change, thus, vibration can be suppressed and guarantee stable action, and the life-span extending spacer element can be sought.
Accompanying drawing explanation
Fig. 1 is the partial cross sectional views of the example for illustration of mode of execution one example of the present utility model and linear guide rail device.
Fig. 2 be represent as mode of execution one example of the present utility model linear guide rail device, the figure that clamps the state of spacer element between cylindrical roller adjacent one another are in transduction pathway region, direction.
Fig. 3 be for illustration of the linear guide rail device as mode of execution one example of the present utility model, the figure of the movement locus of spacer element in roller raceway.
Description of reference numerals
1 guide rail
2 slide blocks
2A slider body
3 rolling element raceways (rail-sides)
5 rolling element raceways (slide block side)
6 cylindrical rollers
8a rolling element path
9 end caps
10 direction transduction pathway
30 spacer elements
32 arms
34 steering channels (straight-line movement section)
35 steering channels (transduction pathway region, direction)
Embodiment
As shown in Figure 1 and Figure 2, this linear guide rail device has: the guide rail 1 linearly extended; With with can the mode of linearly relative movement across the slide block 2 of frame on this guide rail 1.On the bi-side of the width direction of guide rail 1, every side forms 2 and arranges the rolling element raceway 3 being formed with 4 row altogether and linearly extending respectively, on the inner side surface in two sleeve portions 4 in the slider body 2A of slide block 2, be formed with the rolling element raceway 5 corresponding with rolling element raceway 3 respectively.
Between two rolling element raceways 3,5, roll the multiple cylindrical rollers 6 be filled with freely as rolling element, can make slide block 2 on guide rail 1 along rectilinear direction relative movement via the rolling of these cylindrical rollers 6.
Thus, the hole 7 linearly run through also is formed in the sleeve portion 4 of slider body 2A, and in this hole 7, embed the Circulation pipe 8 of path (rolling element path) 8a inside being set to cylindrical roller 6, and on the two ends of the rectilinear direction of slider body 2A, fixing a pair end cap 9 as rolling element circulating unit via screw etc. respectively, this end cap 9 is formed above-mentioned two rolling element raceways 3, the direction transduction pathway 10 (with reference to Fig. 3) being bent into arc-shaped be communicated with above-mentioned rolling element path 8a between 5, thus, form the Infinite Cyclic raceway of cylindrical roller 6.
But, multiple cylindrical rollers 6 of Infinite Cyclic rotate in the same direction centered by Roller Shaft, thus, when cylindrical roller 6 adjacent one another are comes in contact each other, the direction of the roller speed of this contact segment becomes opposite directions, and power produced thus can hinder the rolling smoothly of cylindrical roller 6.
In addition, cylindrical roller 6 is employed for rolling element, thus, compared with using the situation of ball, rigidity and weight bearing power improve, on the contrary, between cylindrical roller 6 adjacent one another are, clamp spacer element 30, axial runout and so-called deflection can not occur in movement to make cylindrical roller 6 and cause action to worsen.
[embodiment]
Fig. 3 is the figure representing the movement locus of the arm 32 of spacer element 30 in the raceway of cylindrical roller 6, in the drawings, is labeled in the motion that-1 ,-2 ,-3 after the reference character of cylindrical roller 6 represents cylindrical roller 6, before A represents, after B represents.Namely, become cylindrical roller 6-1A (front) and the combination of cylindrical roller 6-1B (afterwards), the combination of cylindrical roller 6-2A (front) and cylindrical roller 6-2B (afterwards) and cylindrical roller 6-3A (front) combination with cylindrical roller 6-3B (afterwards), and clamped spacer element 30 between the cylindrical roller 6 of front and back.And, when the arm 32 of spacer element 30 moves from the steering channel 34 of straight-line movement section to the steering channel 35 in transduction pathway region, direction, if the center of the cylindrical roller 6 of the front side of moving direction (shown in A) is passed through from the cross section g of the link position of transduction pathway region, direction and straight-line movement section, then arm 32 starts to tilt.Namely, the steering channel 35 in transduction pathway region, direction is formed as follows: with intersection point P for starting point, this intersection point P be in cross section g and straight-line movement section along the straight line shape internal face outside steering channel 34 line between intersection point, and the circular arc described centered by the centre of curvature O of direction transduction pathway 10 is set to R0, in this case, when the center of the cylindrical roller 6 of the front side (shown in A) of moving direction is passed through from cross section g, the arm 32 of spacer element 30 progresses into inner side from circular arc R 0, and the center of the cylindrical roller 6 of front and back enters in transduction pathway region, direction jointly, then, till being changed to certain shape, till this is the circular arc being changed to R ' in figure (the outside inner wall shape of steering channel 35).Therefore, the position that the shape of steering channel 34,35 starts to change becomes the position of the L of straight-line movement section in the internal face of outside, in addition, about inner side internal face, it changes from the position of the cross section b of straight-line movement section, and enter in transduction pathway region, direction, then, till being changed to the such certain circular shape of Ri in figure (the inner side inner wall shape of steering channel 35).
In addition, Ke Yiwei, the two end part of the loop direction towards cylindrical roller 6 of arm 32 implement chamfering.In addition, Ke Yiwei, the chamfering of this arm 32 is R chamfered section.
The steering channel 35 in setting direction transduction pathway region as described above, and can prevent the arm of spacer element from interfering with the inner circle wall of steering channel in transduction pathway region, direction, and can make roller with the state of spacer element main body close contact under roll, thus prevent from being interposed between roller in transduction pathway region, direction and change, thus, according to linear guide rail device, vibration can be suppressed and guarantee stable action, and the life-span extending spacer element can be sought.
Claims (3)
1. a linear guide rail device, it has: the guide rail linearly extended, and described guide rail has the rolling element raceway linearly extended at two end part; Slide block, it has the rolling element raceway corresponding with the described rolling element raceway of this guide rail; With the multiple cylindrical rollers as rolling element, it is inserted between described guide rail and the described rolling element raceway of described slide block, and the feature of this linear guide rail device is,
Have spacer element, it has: be installed in the spacer element main body between described cylindrical roller adjacent one another are; And configure and the arm be wholely set with described spacer element main body in the mode of at least one end face of the axis in the face of this cylindrical roller,
Described slide block has: slider body, and it has the rolling element path linearly run through; With a pair end cap, its have by between described two rolling element raceways with the forniciform direction transduction pathway of described rolling element communication, and this pair of end lid is fixed in the both ends of the surface of the rectilinear direction of described slider body,
And be provided with steering channel, when described cylindrical roller between described two rolling element raceways, described direction transduction pathway and described rolling element path Inner eycle time, described steering channel guides the described arm of described spacer element along the loop direction of described cylindrical roller,
Make the well width of described steering channel wider than the width of described arm, and it is wide to make the well width of the described steering channel in the region of described direction transduction pathway carry out the well width of this steering channel in the region of straight line motion than described cylindrical roller.
2. linear guide rail device according to claim 1, is characterized in that, the two end part of the loop direction towards described cylindrical roller of described arm are applied with chamfering.
3. linear guide rail device according to claim 2, is characterized in that, the chamfering of described arm is R chamfered section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161133.7U CN204878324U (en) | 2015-03-20 | 2015-03-20 | Linear guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161133.7U CN204878324U (en) | 2015-03-20 | 2015-03-20 | Linear guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878324U true CN204878324U (en) | 2015-12-16 |
Family
ID=54822700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520161133.7U Expired - Fee Related CN204878324U (en) | 2015-03-20 | 2015-03-20 | Linear guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424645A (en) * | 2017-08-25 | 2019-03-05 | 罗伯特·博世有限公司 | Linear roller bearing and the aggregate being made of at least two linear roller bearings |
-
2015
- 2015-03-20 CN CN201520161133.7U patent/CN204878324U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424645A (en) * | 2017-08-25 | 2019-03-05 | 罗伯特·博世有限公司 | Linear roller bearing and the aggregate being made of at least two linear roller bearings |
| CN109424645B (en) * | 2017-08-25 | 2022-05-17 | 罗伯特·博世有限公司 | Linear rolling bearing and assembly of at least two linear rolling bearings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013065663A1 (en) | Motion guide device | |
| CN204878324U (en) | Linear guide device | |
| JP2015197173A (en) | Linear motion guide device | |
| CN103470627A (en) | Novel linear sliding rail with equal loads in four directions | |
| KR101217320B1 (en) | Movement guiding device | |
| US9394940B2 (en) | Motion guide device | |
| CN202484086U (en) | Rolling linear guide rail pair adopting drum-shaped rollers | |
| WO2018079588A1 (en) | Movement guiding device and transport device | |
| JP2003278752A (en) | Direct action guide unit interposing separator between roller | |
| US7465093B2 (en) | Linear guide apparatus | |
| CN204572782U (en) | Linear guide rail device | |
| CN104454968A (en) | Wide groove ball bearing | |
| WO2015100944A1 (en) | Ball spline pair | |
| CN203453295U (en) | Slider of linear rolling guide rail pair | |
| JP5909848B2 (en) | Linear motion guide bearing device | |
| JP2004293783A (en) | Direct acting guide bearing device | |
| JP2009162279A (en) | Linear guide device | |
| CN203453289U (en) | Reverser for slider | |
| JP5272350B2 (en) | Linear motion guide device | |
| CN204704264U (en) | The bent ditch ball bearing of a kind of angle contacting | |
| KR101360590B1 (en) | Creep preventing type ball bearing device | |
| CN203453288U (en) | Sliding block of precision guide rail pair | |
| CN203717644U (en) | Linear guiding device | |
| TW202300794A (en) | Linear motion guide unit | |
| JP2002130271A (en) | Direct-acting rolling guide unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |