CN101832341A - Ball spline mechanism - Google Patents
Ball spline mechanism Download PDFInfo
- Publication number
- CN101832341A CN101832341A CN 201010188967 CN201010188967A CN101832341A CN 101832341 A CN101832341 A CN 101832341A CN 201010188967 CN201010188967 CN 201010188967 CN 201010188967 A CN201010188967 A CN 201010188967A CN 101832341 A CN101832341 A CN 101832341A
- Authority
- CN
- China
- Prior art keywords
- spline
- shaft
- axle
- shaft sleeve
- keyway
- 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.)
- Pending
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a ball spline mechanism solving the problems that a spline on a spline shaft and an inner spline slot on a shaft jacket are easily abraded under the action of side force and the shaft jacket has large axial moving resistance in the prior art. The ball spline mechanism comprises a shaft (4), a shaft jacket (3) and spline slots, wherein the bottoms of the spline slots correspondingly arranged on the outer side face of the shaft (4) and the inner side face of the shaft jacket (3) are both circular arc-shaped bottoms, the corresponding spline jackets on the outer side face of the shaft (4) and the inner side face of the shaft jacket (3) form a cylindrical spline slot in which a raw of steel balls (2) arranged in the shape like a Chinese character 'yi' are movably arranged, the port of the cylindrical spline slot is movable provided with an end cap (1), the steel balls (2) arranged in the shape like the Chinese character 'yi' are sealed in the spline slot by the end cap (1), and a plurality of spline slots are respectively and uniformly arranged on the outer side face of the shaft (4) and the inner side face of the shaft jacket (3). The invention has the advantages of simple structure, small spline frictional force between the spline shaft and the jacket and convenient maintenance.
Description
Technical field
The present invention relates to a kind of dirivig member of machinery, particularly a kind of spline device that between mechanical drive shaft and outer shaft sleeve, cooperates transmission power.
Background technique
At present, the spline dirivig member of machinery is made of splined shaft and cover, and drive unit drives splined shaft and rotates, axle by spline with transmission of power to outer shaft sleeve, the driven member that is fixed together with outer shaft sleeve moves with outer shaft sleeve.When the circumferential power of axle was big, the side of the key on the axle and the lateral force of the interior spline on the outer shaft sleeve were big, and moving resistance is big vertically to cause outer shaft sleeve, and serious wear has had influence on cooperating between axle and the outer shaft sleeve.Simultaneously, there is complex process in the processing of the processing of splined shaft and the interior spline of outer shaft sleeve, the defective that machining error is big.
Summary of the invention
A kind of ball spline mechanism provided by the invention, the key and the interior spline on the outer shaft sleeve that have solved on the splined shaft that prior art exists are subjected to lateral forces to cause wearing and tearing easily, and outer shaft sleeve moves axially the processing technology complicated processing error big technical problem of the interior spline of the processing of the big and splined shaft of resistance and outer shaft sleeve.
The present invention overcomes the above problems by following scheme:
A kind of ball spline mechanism, comprise axle, outer shaft sleeve that is combined together with axle key and the keyway that is provided with along the central axial direction of axle, described correspondence is arranged on the outer side surface of axle and the bottom surface of the keyway on the inner side surface of outer shaft sleeve is the circular arc bottom surface, keyway on the outer side surface of corresponding axle and the inner side surface of outer shaft sleeve is formed a cylindrical key groove, in this cylindrical key groove, be movably set with the steel ball that row's in-line is arranged, port activity in cylindrical key groove is provided with end cap, the steel ball that end cap is arranged in-line is enclosed in the keyway, on the outer side surface of axle and on the inner side surface of outer shaft sleeve a plurality of keyways is being set evenly respectively.
On the outer side surface of axle and the keyway that evenly is provided with on the inner side surface of outer shaft sleeve be 3-6.
The axial length of the keyway that is provided with on the inner side surface of axial length than outer shaft sleeve of the keyway that is provided with on the outer side surface of axle is long.
The present invention is simple in structure, spline machining accuracy height, and the key wiping power between splined shaft and the cover is little, easy to maintenance.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 be among Fig. 1 A-A to sectional view
Embodiment
A kind of ball spline mechanism, comprise axle 4, outer shaft sleeve 3 that is combined together with axle 4 keys and the keyway that is provided with along the central axial direction of axle 4, the bottom surface that described correspondence is arranged on the keyway on the inner side surface of axle 4 outer side surface and outer shaft sleeve 3 is the circular arc bottom surface, keyway on the outer side surface of corresponding axle 4 and the inner side surface of outer shaft sleeve 3 is formed a cylindrical key groove, in this cylindrical key groove, be movably set with the steel ball 2 that row's in-line is arranged, port activity in cylindrical key groove is provided with end cap 1, the steel ball 2 that end cap 1 is arranged in-line is enclosed in the keyway, on the outer side surface of axle 4 and on the inner side surface of outer shaft sleeve 3 a plurality of keyways is being set evenly respectively.
On the outer side surface of axle 4 and the keyway that evenly is provided with on the inner side surface of outer shaft sleeve 3 be 3-6.
The axial length of the keyway that is provided with on the inner side surface of axial length than outer shaft sleeve 3 of the keyway that is provided with on the outer side surface of axle 4 is long.
The present invention will endwisely slip to rub and become rolling friction, and shearing force is become positive pressure, improve the working life of spline.It is big particularly to have solved spline resistance when moving axially, and damages key and force transmission mechanism short technical problem in working life easily.
Claims (3)
1. ball spline mechanism, comprise axle (4), outer shaft sleeve (3) that is combined together with axle (4) key and the keyway that is provided with along the central axial direction of axle (4), it is characterized in that, the bottom surface that described correspondence is arranged on the keyway on the inner side surface of axle outer side surface of (4) and outer shaft sleeve (3) is the circular arc bottom surface, keyway on the outer side surface of corresponding axle (4) and the inner side surface of outer shaft sleeve (3) is formed a cylindrical key groove, in this cylindrical key groove, be movably set with the steel ball (2) that row's in-line is arranged, port activity in cylindrical key groove is provided with end cap (1), the steel ball (2) that end cap (1) is arranged in-line is enclosed in the keyway, and a plurality of keyways evenly are being set respectively on the outer side surface of axle (4) and on the inner side surface of outer shaft sleeve (3).
2. a kind of ball spline mechanism according to claim 1 is characterized in that, is 3-6 at the keyway that evenly is provided with on the outer side surface of axle (4) and on the inner side surface of outer shaft sleeve (3).
3. a kind of ball spline mechanism according to claim 1 and 2 is characterized in that, the axial length of the keyway that is provided with on the inner side surface of axial length than outer shaft sleeve (3) of the keyway that is provided with on the outer side surface of axle (4) is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188967 CN101832341A (en) | 2010-05-27 | 2010-05-27 | Ball spline mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188967 CN101832341A (en) | 2010-05-27 | 2010-05-27 | Ball spline mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832341A true CN101832341A (en) | 2010-09-15 |
Family
ID=42716511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010188967 Pending CN101832341A (en) | 2010-05-27 | 2010-05-27 | Ball spline mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107997679A (en) * | 2018-01-09 | 2018-05-08 | 苏州市春菊电器有限公司 | One kind can clear up air passage and its dust catcher |
| CN114837845A (en) * | 2022-04-14 | 2022-08-02 | 中国航发沈阳发动机研究所 | Anti-clamping-stagnation co-acting sliding block structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055749C (en) * | 1994-06-03 | 2000-08-23 | 洛尔·布罗坎普有限公司 | Articulated shaft with sliding unit |
| US20050077098A1 (en) * | 2003-09-30 | 2005-04-14 | Honda Motor Co., Ltd. | Swingable vehicle |
| CN100390000C (en) * | 2001-10-01 | 2008-05-28 | 日本精工株式会社 | Vehicle steering telescopic shaft |
| CN201705824U (en) * | 2010-05-27 | 2011-01-12 | 太原刚玉物流工程有限公司 | Ball spline mechanism |
-
2010
- 2010-05-27 CN CN 201010188967 patent/CN101832341A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055749C (en) * | 1994-06-03 | 2000-08-23 | 洛尔·布罗坎普有限公司 | Articulated shaft with sliding unit |
| CN100390000C (en) * | 2001-10-01 | 2008-05-28 | 日本精工株式会社 | Vehicle steering telescopic shaft |
| US20050077098A1 (en) * | 2003-09-30 | 2005-04-14 | Honda Motor Co., Ltd. | Swingable vehicle |
| CN201705824U (en) * | 2010-05-27 | 2011-01-12 | 太原刚玉物流工程有限公司 | Ball spline mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107997679A (en) * | 2018-01-09 | 2018-05-08 | 苏州市春菊电器有限公司 | One kind can clear up air passage and its dust catcher |
| CN107997679B (en) * | 2018-01-09 | 2020-05-19 | 苏州市春菊电器有限公司 | Cleanable air duct and dust collector thereof |
| CN114837845A (en) * | 2022-04-14 | 2022-08-02 | 中国航发沈阳发动机研究所 | Anti-clamping-stagnation co-acting sliding block structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100915 |