CN102305241B - Linear guide pair - Google Patents
Linear guide pair Download PDFInfo
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- CN102305241B CN102305241B CN 201110249891 CN201110249891A CN102305241B CN 102305241 B CN102305241 B CN 102305241B CN 201110249891 CN201110249891 CN 201110249891 CN 201110249891 A CN201110249891 A CN 201110249891A CN 102305241 B CN102305241 B CN 102305241B
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- supporting guide
- bearing
- guiding rail
- guiding
- guide
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Abstract
The invention belongs to the technical field of guide pair structures, and discloses a linear guide pair. The linear guide pair comprises a bedplate and a sliding block. At least two cylindrical guiding rails are fixedly arranged on the bedplate. A first bearing and a second bearing which can roll along the guiding rails are arranged on the sliding block, wherein the bearings can rotate. A point contact friction pair is formed among the first bearing, the second bearing, and the guiding rail. An angle formed between a central axis of the first bearing and a central axis of the second bearing is larger than 90 DEG and smaller than 170 DEG. With the linear guide pair provided by the invention, working principles of traditional linear guiding rails are broken through. According to the invention, a character of roller bearings of high limit speed is adopted. A maximum limit speed and a limit acceleration depend on the limit speed of the bearings. Therefore, the limit speed of the sliding block is greatly increased, and a phenomenon of roller blocking is not occurred. The reliability of the linear guide pair is high, the linear guide pair can be reliably applied in fields requiring linear speed and high acceleration.
Description
Technical field
The invention belongs to the guiding pairs technical field of structures, but relate in particular to a kind of linear guide pairs of ultra high speed operation.
Background technique
Present linear guide pairs, it circulates ball and is expelled between slide block and the guiding pairs, to play the effect of bearing by the curve orientation groove being set and in the curve orientation groove ball being set in the curve orientation groove.But because the curve orientation groove is curve, when the speed of slide block surpasses 12m/s, the reason that is higher than ball linear velocity in the curve owing to the ball space rate, cause the ball in the guiding groove in time not to be discharged in the linear guide pairs, cause ball between slide block and guide rail stuck and can not rotate, thereby cause guide rail to pull or the ball grooves phenomenon such as break.This linear guide pairs of the prior art, its velocity limit is low, and poor reliability can not be applied to need the field of high space rate and high-acceleration.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of linear guide pairs is provided, its velocity limit is high, and reliability is high, need can be applicable to the field of high space rate and high-acceleration.
Technological scheme of the present invention is: a kind of linear guide pairs, comprise support and slide block, be fixedly installed at least two columned guiding rails on the described support, rotate on the described slide block and be provided with clutch shaft bearing and second bearing that can roll along described guiding rail, it is secondary to form the some contact friction between described clutch shaft bearing and the second bearing and the guiding rail, and the angle between the medial axis of the medial axis of described clutch shaft bearing and the second bearing is greater than 90 ° and less than 170 °; Also be fixedly installed supporting guide on the described support, described guiding rail is fixedly installed on the both sides of described supporting guide, and described guiding rail is fixedly connected on the described supporting guide by locking element; Described supporting guide is cylindrical shape, its quantity is set to the odd number root, the equal diameters of described each supporting guide, described guiding rail is provided with two, described supporting guide is set at least two layers, closely connect to form inverted cone-shaped structure between described supporting guide and the guiding rail, described two guiding rails are arranged at respectively the both sides of upper strata supporting guide, described locking element passes successively in guiding rail wherein, supporting guide between two guiding rails and another root guiding rail, be fixedly connected with by the first fastening piece between the described supporting guide, be connected by the second fastening piece between described supporting guide and the support; Described slide block is provided with at least two and in pairs setting.
More specifically, described the second fastening piece penetrates support from the lower end of support and is threadedly connected on the supporting guide that is positioned at lower floor, and described the first fastening piece is connected in neighbouring supporting guide, and the supporting guide on upper strata is fixed on the supporting guide of lower floor.
More specifically, the central axis of described the first fastening piece passes two by the center of circle of the supporting guide of this first fastening piece connection.
Preferably, described locking element, the first fastening piece, the second fastening piece are bolt or screw.
More specifically, the diameter of described guiding rail is less than or equal to the diameter of described supporting guide.
More specifically, described supporting guide is provided with three, described three supporting guides and two stacked inverted cone-shaped structures that are of guiding rail close-packed arrays, two guiding rails and the supporting guide between two guiding rails are positioned at the upper strata, other two supporting guides are positioned at lower floor and are fixedly connected on the described support, described clutch shaft bearing and the second bearing are provided with two, described two clutch shaft bearings are positioned at the place, top of guiding rail and form some contact friction pair with two guiding rails respectively, and described two the second bearings are positioned at the oblique below of guiding rail and secondary with the contact friction of two guiding rails formation points respectively.
A kind of linear guide pairs provided by the invention, it has broken through the working principle of traditional line guide rail, the high characteristics of rolling bearing limit speed have been utilized, to be mutually clutch shaft bearing and the second bearing between 90 ° to 170 ° by setting, clutch shaft bearing and the second bearing can act on respectively the different azimuth of the guiding rail of cylindrical shape, with the gap between elimination clutch shaft bearing and the second bearing and the guiding rail, and slide block can not deviate from the structural reliability height from guiding rail.Diameter by changing clutch shaft bearing and the second bearing, type etc. can be regulated the size of load, and are easy to use.Clutch shaft bearing and the second bearing and be tangent as two cambered surfaces between the guiding rail of cylindrical shape have formed the rolling friction pair of some contact, and its frictional force is little, and resistance is low, is conducive to guiding pairs stable operation under the ultra high speed operating mode, and reliability is high.The limit speed that the upper limit (UL) speed of slide block, limit acceleration depend on bearing, the velocity limit of slide block improves greatly, and the stuck situation of ball can not occur, and reliability is high, need can be applied to reliably the field of high space rate and high-acceleration.
Description of drawings
Fig. 1 is the cross sectional representation of a kind of linear guide pairs of providing of the embodiment of the invention;
Fig. 2 is the floor map of a kind of linear guide pairs of providing of the embodiment of the invention;
Fig. 3 is another floor map of a kind of linear guide pairs of providing of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Such as Fig. 1～shown in Figure 3, a kind of linear guide pairs that the embodiment of the invention provides, comprise support 100 and slide block 200, be fixedly installed at least two columned guiding rails 310 on the described support 100, rotate on the described slide block 200 and be provided with clutch shaft bearing 410 and second bearing 420 that can roll along described guiding rail 310, it is secondary to form the some contact friction between described clutch shaft bearing 410 and the second bearing 420 and the guiding rail 310, and the angle between the medial axis of the medial axis of described clutch shaft bearing 410 and the second bearing 420 is greater than 90 ° and less than 170 °.By such design, broken through the working principle of traditional line guide rail, utilized the high characteristics of rolling bearing limit speed, the sliding movement mode of traditional line guiding pairs slide block 200 and guide rail is become the mode of carrying out rolling motion for bearing at guide rail.Be the bearing rotating speed according to outer race linear velocity V=n π D(n, D is bearing outside diameter) as can be known, V is directly proportional with n, D, when D one regularly, V depends on that n is the rotating speed of bearing.N=36000r/min for example, D=13mm, V=24.5m/s then, hence one can see that utilizes rolling bearing can be easy to the linear velocity that reaches higher.Compare with linear guide pairs of the prior art, it can allow the upper limit (UL) speed of slide block 200, the limit speed that limit acceleration depends on bearing, the velocity limit of slide block 200 improves greatly, the stuck situation of ball can not occur, reliability is high, need can be applied to reliably the field of high space rate and high-acceleration, for example unmanned plane transmitter requirement space rate is the occasion that 15m/s is above, acceleration 2g is above, and the application is wide.Be mutually clutch shaft bearing 410 and the second bearing 420 between 90 ° to 170 ° by setting, clutch shaft bearing 410 and the second bearing 420 can act on respectively the different azimuth of guiding rail 310, to eliminate the gap between clutch shaft bearing 410 and the second bearing 420 and the guiding rail 310.In the present embodiment; be mutually 135 ° between the medial axis of clutch shaft bearing 410 and the second bearing 420; additionally, also can select other proper angle between 90 ° to 170 ° between the medial axis of clutch shaft bearing 410 and the second bearing 420, all belong to protection scope of the present invention.The type of clutch shaft bearing 410 and the second bearing 420 and size can be according to the selection of dimension of magnitude of load and slide block 200.Diameter by changing clutch shaft bearing 410 and the second bearing 420, type etc. can be regulated the size of load.Wherein clutch shaft bearing 410 acts on the place, top of guiding rail 310, and the second bearing 420 acts on the place, below, side of guiding rail 310, and slide block 200 can not deviate from from guiding rail 310, and structural reliability is high.Clutch shaft bearing 410 and the second bearing 420 all arrange in pairs, act on respectively on the guiding rail 310.As two cambered surface phase meets, formed the rolling friction pair of some contact between clutch shaft bearing 410 and the second bearing 420 and the guiding rail 310, its frictional force is little, and resistance is low, is conducive to guiding pairs stable operation under the ultra high speed operating mode, and reliability is high.
Particularly, as depicted in figs. 1 and 2, as one embodiment of the invention, also be fixedly installed supporting guide 320 on the described support 100, described guiding rail 310 is fixedly installed on the both sides of described supporting guide 320, and described guiding rail 310 is fixedly connected on the described supporting guide 320 by locking element 530.The cross section of supporting guide 320 can be the suitable shapes such as circle or polygonal, and in the present embodiment, supporting guide 320 is the same with guiding rail 310, is cylindrical shape.
More specifically, as depicted in figs. 1 and 2, as one embodiment of the invention, described supporting guide 320 is cylindrical shape, its quantity is set to the odd number root, the equal diameters of described each supporting guide 320, described guiding rail 310 is provided with two, described supporting guide 320 is set at least two layers, closely connect to form inverted cone-shaped structure between described supporting guide 320 and the guiding rail 310, described two guiding rails 310 are arranged at respectively the both sides of upper strata supporting guide 320, described locking element 530 passes successively in guiding rail 310 wherein, supporting guide 320 between two guiding rails 310 and another root guiding rail 310, be fixedly connected with by the first fastening piece 510 between the described supporting guide 320, be connected by the second fastening piece 520 between described supporting guide 320 and the support 100.By such design, be convenient on the one hand assembling, can adjust easily on the other hand the gap between clutch shaft bearing 410 and the second bearing 420, the guiding rail 310, make linear guide pairs provided by the present invention can be in good running state.By supporting guide 320 and the guiding rail 310 of selecting cylindrical shape, it is easy to prepare, is easy to realize highi degree of accuracy processing, and processing cost is low, and machining stress is little, and structural reliability is high.
More specifically, as depicted in figs. 1 and 2, as one embodiment of the invention, described the second fastening piece 520 penetrates support 100 from the lower end of support 100 and is threadedly connected on the supporting guide 320 that is positioned at lower floor, and the supporting guide 320 that each root is positioned at lower floor all lock onto support 100 upper ends by a plurality of the second fastening pieces 520.Described the first fastening piece 510 is connected in neighbouring supporting guide 320, and the supporting guide 320 on upper strata is fixed on the supporting guide 320 of lower floor.The first fastening piece 510 passes and the supporting guide 320 of screw-threaded coupling below it from the oblique upper of the supporting guide 320 on upper strata, and structural reliability is high and easy to adjust
More specifically, as depicted in figs. 1 and 2, as one embodiment of the invention, the central axis of described the first fastening piece 510 passes two and makes its stress equalization by the center of circle of the supporting guide 320 of these first fastening piece, 510 connections, with the reliability that guarantees to connect.
Preferably, as depicted in figs. 1 and 2, as one embodiment of the invention, described locking element 530, the first fastening piece 510, the second fastening piece 520 are bolt or screw, can select standard piece, dismounting, easy to maintenance and application cost is low.
Particularly, as depicted in figs. 1 and 2, as one embodiment of the invention, the diameter of described guiding rail 310 is less than or equal to the diameter of described supporting guide 320, and structural reliability is good.
Preferably, as depicted in figs. 1 and 2, as one embodiment of the invention, described supporting guide 320 is provided with three, described three supporting guides 320 and two stacked inverted cone-shaped structures that are of guiding rail 310 close-packed arrays, two guiding rails 310 and the supporting guide 320 between two guiding rails 310 are positioned at the upper strata, other two supporting guides 320 are positioned at lower floor and are fixedly connected on the described support 100, described clutch shaft bearing 410 and the second bearing 420 are provided with two, described two clutch shaft bearings 410 are positioned at the place, top of guiding rail 310 and form some contact friction pair with two guiding rails 310 respectively, described two the second bearings 420 are positioned at the oblique below of guiding rail 310 and form some contact friction pair with two guiding rails 310 respectively, and are rational in infrastructure reliable.Additionally, the quantity of supporting guide 320 can be determined according to actual conditions, only need be set to the radix root and get final product to be arranged in inverted cone-shaped structure.The quantity of guiding rail 310 also can be decided according to actual conditions, can be set to the suitable quantities such as two or four, all belongs to protection scope of the present invention.In the present embodiment, three supporting guide 320 equal diameters and close-packed arrays become triangular shape, two supporting guides 320 that are positioned at lower floor are fixed on the support 100 by two group of second fastening piece 520, a supporting guide 320 that is positioned at the upper strata is individually fixed on two supporting guides 320 that are positioned at lower floor by two group of first fastening piece 510, the first fastening piece 510 all passes the medial axis of respective support guide rail 320, and two group of first fastening piece 510 is mutually 60 ° of angles.In the present embodiment, the equal diameters of guiding rail 310 and supporting guide 320, locking element 530 is horizontally disposed with and passes guiding rail 310 and is positioned at the center of circle of the supporting guide 320 on upper strata.Certainly, guiding rail 310 also can be unequal with the diameter of supporting guide 320, as long as the diameter of guiding rail 310 is not more than the diameter of supporting guide 320.
Particularly, as shown in figures 1 and 3, as one embodiment of the invention, described slide block 200 is provided with at least two and in pairs setting, and reliability is high.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces or improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. linear guide pairs, comprise support and slide block, it is characterized in that, be fixedly installed at least two columned guiding rails on the described support, rotate on the described slide block and be provided with clutch shaft bearing and second bearing that can roll along described guiding rail, it is secondary to form the some contact friction between described clutch shaft bearing and the second bearing and the guiding rail, and the angle between the medial axis of the medial axis of described clutch shaft bearing and the second bearing is greater than 90 ° and less than 170 °; Also be fixedly installed supporting guide on the described support, described guiding rail is fixedly installed on the both sides of described supporting guide, and described guiding rail is fixedly connected on the described supporting guide by locking element; Described supporting guide is cylindrical shape, its quantity is set to the odd number root, the equal diameters of described each supporting guide, described guiding rail is provided with two, described supporting guide is set at least two layers, closely connect to form inverted cone-shaped structure between described supporting guide and the guiding rail, described two guiding rails are arranged at respectively the both sides of upper strata supporting guide, described locking element passes successively in guiding rail wherein, supporting guide between two guiding rails and another root guiding rail, be fixedly connected with by the first fastening piece between the described supporting guide, be connected by the second fastening piece between described supporting guide and the support; Described slide block is provided with at least two and in pairs setting.
2. linear guide pairs as claimed in claim 1, it is characterized in that, described the second fastening piece penetrates support from the lower end of support and is threadedly connected on the supporting guide that is positioned at lower floor, described the first fastening piece is connected in neighbouring supporting guide, and the supporting guide on upper strata is fixed on the supporting guide of lower floor.
3. linear guide pairs as claimed in claim 2 is characterized in that, the central axis of described the first fastening piece passes two by the center of circle of the supporting guide of this first fastening piece connection.
4. linear guide pairs as claimed in claim 1 is characterized in that, described locking element, the first fastening piece, the second fastening piece are bolt or screw.
5. linear guide pairs as claimed in claim 1 is characterized in that, the diameter of described guiding rail is less than or equal to the diameter of described supporting guide.
6. linear guide pairs as claimed in claim 1, it is characterized in that, described supporting guide is provided with three, described three supporting guides and two stacked inverted cone-shaped structures that are of guiding rail close-packed arrays, two guiding rails and the supporting guide between two guiding rails are positioned at the upper strata, other two supporting guides are positioned at lower floor and are fixedly connected on the described support, described clutch shaft bearing and the second bearing are provided with two, described two clutch shaft bearings are positioned at the place, top of guiding rail and form some contact friction pair with two guiding rails respectively, and described two the second bearings are positioned at the oblique below of guiding rail and secondary with the contact friction of two guiding rails formation points respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110249891 CN102305241B (en) | 2011-08-26 | 2011-08-26 | Linear guide pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110249891 CN102305241B (en) | 2011-08-26 | 2011-08-26 | Linear guide pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305241A CN102305241A (en) | 2012-01-04 |
| CN102305241B true CN102305241B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110249891 Active CN102305241B (en) | 2011-08-26 | 2011-08-26 | Linear guide pair |
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| CN (1) | CN102305241B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3040711A1 (en) * | 1980-10-29 | 1982-06-03 | Hugo Isert | Linearly movable tool carrier - has inverted U=section member with angled roller pairs inside flanges running on two round-section rails |
| CN1369651A (en) * | 2001-02-16 | 2002-09-18 | 合肥力宇数控设备制造有限责任公司 | Linear rolling track |
| DE102008029275B4 (en) * | 2008-06-19 | 2015-02-05 | Festo Ag & Co. Kg | linear unit |
| CN202251444U (en) * | 2011-08-26 | 2012-05-30 | 大连欧朋达科技有限公司 | Linear guide rail pair |
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2011
- 2011-08-26 CN CN 201110249891 patent/CN102305241B/en active Active
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| CN102305241A (en) | 2012-01-04 |
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Owner name: OPD TECHNOLOGY (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: DALIAN OUPENGDA TECHNOLOGY CO., LTD. Effective date: 20130918 |
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Free format text: CORRECT: ADDRESS; FROM: 116600 DALIAN, LIAONING PROVINCE TO: 518105 SHENZHEN, GUANGDONG PROVINCE |
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Address after: Huaihe Sichuang Road Industrial Park Economic Development Zone of Dalian city in Liaoning province 116600 building 7 Patentee after: Dalian Ouwen frienda Technology Co.,Ltd. Address before: Huaihe Sichuang Road Industrial Park Economic Development Zone of Dalian city in Liaoning province 116600 building 7 Patentee before: Dalian Oupengda Technology Co.,Ltd. |
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Effective date of registration: 20130918 Address after: 518105 Shenzhen city Baoan District street Songgang Tantou Industrial Zone Fifth Mingwei Industrial Park A building on the north side Patentee after: OPD TECHNOLOGY (SHENZHEN) Co.,Ltd. Address before: Huaihe Sichuang Road Industrial Park Economic Development Zone of Dalian city in Liaoning province 116600 building 7 Patentee before: Dalian Ouwen frienda Technology Co.,Ltd. |