CN102062187A - Novel ball isolator of ball screw pair - Google Patents
Novel ball isolator of ball screw pair Download PDFInfo
- Publication number
- CN102062187A CN102062187A CN2009102119033A CN200910211903A CN102062187A CN 102062187 A CN102062187 A CN 102062187A CN 2009102119033 A CN2009102119033 A CN 2009102119033A CN 200910211903 A CN200910211903 A CN 200910211903A CN 102062187 A CN102062187 A CN 102062187A
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- ball
- interface end
- isolator
- elliptic shape
- screw pair
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Abstract
The invention discloses a novel ball isolator of a ball screw pair. The ball isolator comprises an elliptic input interface end, an elliptic output interface end, a cross pin shaft and a pin shaft locking shaft sleeve. The ball isolator is placed in a ball circulating roller path in use. The ball isolator is characterized in that: the ball isolator is embedded among balls; and the balls are arranged in turn to form an elastic chain rolling body and placed in a lead screw roller path, a nut internal thread roller path and a reverse circulating roller path. Through the ball isolator of the ball screw pair, the ball screw pair can run in the roller path, particularly the bent roller path, mutual collision and abrasion are not easily produced among the balls, and particularly the ball chain is smoother in the circulating process, so the ball screw pair has no overheating and has improved precision, low noise, stable operation and long service life.
Description
Technical field:
The present invention relates to the precision mechanical transmission technology.
Background technique:
Ball screw pair is the key feature that lathe and other machines are realized precision mechanical transmission, and the Performance And Reliability of ball screw pair is directly determining the lathe overall performance.Traditional ball screw pair structure composition mainly contains: lead screw shaft, nut, ball and ball reversing device.The internal thread raceway of lead screw shaft raceway and nut and ball reversing device are formed closed circulation raceway jointly, thereby make ball can realize closed circulation.The fluidity of motion of ball chain has directly determined the ball screw adjutant to rotatablely move to be converted to straight line motion or straight line motion has been converted to the quality that rotatablely moves.The error of leading screw and nut rolling way makes ball that mutual friction mutually and collision easily take place at the volley in actual production, makes the friction torque of ball screw pair not steady, unstable properties; Simultaneously, the collision between ball also makes ball screw pair produce noise, and transmission efficiency reduces, the working life of having reduced ball screw pair.And when using present existing ball isolator, when ball ran to bend, ball and isolator produced bigger friction, had slackened the effect of ball isolator.
Summary of the invention:
The present invention overcomes the existing deficiency of existing ball screw pair ball-recirculation mode, and a kind of friction and the collision that can lower between the ball is provided, and can make ball chain circuit new pattern rolling ball lead screw pair ball isolator more glibly in the bending raceway.
The technological scheme that patent of the present invention solves its technical problem is: a kind of new pattern rolling ball lead screw pair ball isolator, mainly comprise elastic elliptic shape input interface end, cross bearing pin, elastic elliptic shape output interface end and lock clasp axle sleeve, described elastic elliptic shape input interface end links to each other by middle cross bearing pin with elastic elliptic shape output interface end, and the lock clasp axle sleeve is locked to the cross bearing pin; Elastic elliptic shape input interface end and elastic elliptic shape output interface end and ball keep in touch; The ball isolator places between the ball successively, forms the resilient balls chain, and described elastic elliptic shape input interface end and elastic elliptic shape output interface end inboard all are equipped with oil storage chamber, described oil storage chamber stored lubricant oil.
The difference of this scheme is that universal joint makes ball chain when bend moves, and has reduced the friction between ball and isolator, ball chain and the reverser; The resilient balls isolator makes the gap homogenization between the ball, thereby has improved the fluency of ball chain operation.
Described elastic elliptic shape interface shape plays guide function to the motion of ball; Can store lubricant oil at the inner oil storage chamber that is provided with of elastic elliptic shape interface, improve the lubrication effect of ball chain, described universal joint is a spring steel; Described elastic elliptic shape interface is a rubber.
Its useful benefit is: overcome the existing deficiency of existing ball screw pair ball-recirculation mode, a kind of friction and the collision that can lower between the ball is provided, and can make ball chain circuit ball interrupter more glibly in the bending raceway.
Description of drawings:
Fig. 1 is a ball screw pair ball isolator assembling schematic representation.
Fig. 2 is the structural representation of ball isolator.
Among the figure: 1 lead screw shaft, 2 balls, 3 ball isolators, 4 nuts, 5 elastic elliptic shape input interface ends, 6 cross bearing pins, 7 elastic elliptic shape output interface ends, 8 lock clasp axle sleeves, 9 oil storage chambers.
Embodiment
Below in conjunction with Figure of description the utility model low noise ball screw is described further.
The assembling schematic representation of ball screw pair ball isolator as shown in Figure 1, ball 2 are distributed in the leading screw raceway that lead screw shaft 1 and nut 4 form, and ball isolator 3 is between ball 2, thereby have formed the resilient balls chain.
The working principle of ball screw pair: lead screw shaft 1 is under the driving of rotary driving motor, and generation rotatablely moves, and drives the resilient balls chain of being made up of ball and ball isolator simultaneously; Resilient balls chain drive nut is simultaneously done straight line motion, thereby realization becomes the process of Precision Linear Moving or straight line motion is become the process that precision rotatablely moves by rotatablely moving.
The structural representation of ball isolator as shown in Figure 2, ball isolator comprise elastic elliptic shape input interface end 5, cross bearing pin 6, elastic elliptic shape output interface end 7 and lock clasp axle sleeve 8.Elastic elliptic shape input interface end 5 links to each other by middle cross bearing pin 6 with elastic elliptic shape output interface end 7, and 8 pairs of cross bearing pins 6 of lock clasp axle sleeve are locked.
Above-mentioned elastic elliptic shape input interface end 5 all is equipped with oil storage chamber 9 with elastic elliptic shape output interface end 7 inboards, and above-mentioned oil storage chamber 9 can be stored lubricant oil.Above-mentioned two elastic elliptic interfaces are rubber material.Above-mentioned elastic elliptic shape input interface end 5 contacts with ball with elastic elliptic shape output interface end 7, when ball chain is passed through the bent tube section of reverser, the rotation that above-mentioned elastic elliptic shape input interface end 5 and elastic elliptic shape output interface end 7 can produce several angle, thereby alleviated the friction between ball and the ball isolator, made the more smooth and easy circulation of ball.
Claims (2)
1. new pattern rolling ball lead screw pair ball isolator, mainly comprise elastic elliptic shape input interface end, cross bearing pin, elastic elliptic shape output interface end and lock clasp axle sleeve, it is characterized in that: described elastic elliptic shape input interface end links to each other by middle cross bearing pin with elastic elliptic shape output interface end, and the lock clasp axle sleeve is locked to the cross bearing pin; Elastic elliptic shape input interface end and elastic elliptic shape output interface end and ball keep in touch; The ball isolator places between the ball successively, forms the resilient balls chain, and described elastic elliptic shape input interface end and elastic elliptic shape output interface end inboard all are equipped with oil storage chamber, described oil storage chamber stored lubricant oil.
2. according to claims 1 described new pattern rolling ball lead screw pair ball isolator, it is characterized in that: described elastic elliptic shape input interface end and elastic elliptic shape output interface end are the rubber interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102119033A CN102062187A (en) | 2009-11-17 | 2009-11-17 | Novel ball isolator of ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102119033A CN102062187A (en) | 2009-11-17 | 2009-11-17 | Novel ball isolator of ball screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102062187A true CN102062187A (en) | 2011-05-18 |
Family
ID=43997603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102119033A Pending CN102062187A (en) | 2009-11-17 | 2009-11-17 | Novel ball isolator of ball screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102062187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739083A (en) * | 2024-02-08 | 2024-03-22 | 深圳市百川滚珠丝杆有限公司 | Direct-drive type ball screw linear module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514169Y (en) * | 2001-10-16 | 2002-10-02 | 上银科技股份有限公司 | Ball spacer for linear gearing element |
| WO2004055415A1 (en) * | 2002-12-18 | 2004-07-01 | Ina-Schaeffler Kg | Ball screw |
| JP2006009836A (en) * | 2004-06-22 | 2006-01-12 | Nsk Ltd | Ball screw device |
| CN101275651A (en) * | 2007-03-26 | 2008-10-01 | 张国梁 | Low noise ball screw |
| CN201554833U (en) * | 2009-11-17 | 2010-08-18 | 姜洪奎 | Novel ball isolator for ball screw assembly |
-
2009
- 2009-11-17 CN CN2009102119033A patent/CN102062187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514169Y (en) * | 2001-10-16 | 2002-10-02 | 上银科技股份有限公司 | Ball spacer for linear gearing element |
| WO2004055415A1 (en) * | 2002-12-18 | 2004-07-01 | Ina-Schaeffler Kg | Ball screw |
| JP2006009836A (en) * | 2004-06-22 | 2006-01-12 | Nsk Ltd | Ball screw device |
| CN101275651A (en) * | 2007-03-26 | 2008-10-01 | 张国梁 | Low noise ball screw |
| CN201554833U (en) * | 2009-11-17 | 2010-08-18 | 姜洪奎 | Novel ball isolator for ball screw assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739083A (en) * | 2024-02-08 | 2024-03-22 | 深圳市百川滚珠丝杆有限公司 | Direct-drive type ball screw linear module |
| CN117739083B (en) * | 2024-02-08 | 2024-04-16 | 深圳市百川滚珠丝杆有限公司 | Direct-drive type ball screw linear module |
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| 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 |
Application publication date: 20110518 |