CN101949436A - Ball screw with ball guiding isolator - Google Patents
Ball screw with ball guiding isolator Download PDFInfo
- Publication number
- CN101949436A CN101949436A CN2010105061713A CN201010506171A CN101949436A CN 101949436 A CN101949436 A CN 101949436A CN 2010105061713 A CN2010105061713 A CN 2010105061713A CN 201010506171 A CN201010506171 A CN 201010506171A CN 101949436 A CN101949436 A CN 101949436A
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- Prior art keywords
- ball
- guiding
- isolator
- raceway
- nut
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Abstract
The invention relates to a ball screw with a ball guiding isolator. The ball screw overcomes defects of easy collision and blockage of balls when the conventional ball screw moves. The ball screw mainly comprises a screw shaft, a front-end end plug reverser, a nut, a rear-end end plug reverser, balls and the ball guiding isolator, wherein the balls are arranged in a ball circulating raceway; the ball circulating raceway comprises a spiral raceway, a reverse raceway and a straight passage; the spiral raceway consists of the screw shaft with a guiding groove and the thread part of the nut; the reverse raceway consists of arc raceways in the end plug reverses with guiding grooves at two ends of the nut; and two sides of a through hole of the nut are provided with the straight passage of which the guiding grove is a circulating raceway.
Description
Technical field
The present invention relates to the precision mechanical transmission technology, be more particularly to that traditional relatively screw rod and nut body ball-recirculation raceway are smooth more, the lower ball screw pair of temperature rise in the using process with guiding ball isolator.
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 spiral raceway of lead screw shaft raceway and nut, ball reversing device and nut straight passage are formed closed circulation raceway jointly, thereby make ball can realize closed circulation.In actual production, there are problems such as relatively poor to neutrality, that surface roughness is lower in the processing of ball straight passage in the nut, thereby make the circulation raceway curvature of ball discontinuous, phase mutual friction and collision easily take place in the running, make the friction torque of ball screw pair not steady; Simultaneously, the collision between ball also makes ball screw pair produce noise, in the using process temperature rise bigger, the working life of having reduced ball screw pair.
Summary of the invention
Purpose of the present invention easily produces collision, choking phenomenon between the ball when overcoming existing ball screw secondary motion exactly, and a kind of ball screw pair with guiding ball isolator is provided.
The technological scheme that patent of the present invention solves its technical problem is:
A kind of ball screw pair with guiding ball isolator, it mainly is made up of lead screw shaft, front end end plug type reverser, nut, rear end end plug type reverser, ball and guiding ball isolator, described ball is arranged on the ball-recirculation raceway, and the ball-recirculation raceway comprises spiral rolling track, reverse raceway and straight passage three parts; Spiral rolling track is made up of the spiral part of lead screw shaft with guiding groove and nut; Oppositely raceway is made up of the circular arc raceway in the end plug type reverser with guiding groove at nut two ends; The both sides of the through hole of nut have the straight passage part that guiding groove is the circulation raceway.
Described guiding ball isolator is respectively by single arc end, two arc ends, and the guiding ball combines.
Single arc end of described guiding ball isolator and two arc end are all fluted.
Described guiding ball isolator is made by engineering plastics.
The present invention utilizes guiding ball isolator to change forms of motion between the ball, can effectively alleviate the collision between the ball like this, thereby reduce the noise of ball screw pair, the life-span of improving ball screw pair.
Beneficial effect of the present invention is: easily produce collision, choking phenomenon between the ball that occurs when overcoming existing ball screw secondary motion, a kind of noise that can lower ball screw pair is provided, and can make the smooth more ball wire bar pair of ball-recirculation.
Description of drawings:
Fig. 1 is a kind of structural representation with guiding ball isolator ball screw pair.
Fig. 2 is the structural representation of guiding ball isolator.
Fig. 3 is the side sectional view of guiding ball isolator.
Fig. 4 is a kind of front section view with guiding ball isolator.
Wherein, 1 lead screw shaft, 2 front end end plug type reversers, 3 nuts, 4 rear end end plug type reversers, 5 balls, 6 guiding ball isolators, 7 single arc ends, 8 pairs of arc ends, 9 guiding balls.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 have a guiding ball isolator ball screw pair, it is mainly by lead screw shaft 1, front end end plug type reverser 2, nut 3, rear end end plug type reverser 4, ball 5 and guiding ball isolator 6 are formed.The ball-recirculation raceway comprises spiral rolling track, oppositely raceway and straight passage three parts: spiral rolling track is made up of the spiral part of lead screw shaft 1 with guiding groove and nut 3; Oppositely raceway is made up of the circular arc raceway in the end plug type reverser with guiding groove 2 at nut 3 two ends; The both sides of nut 3 clear openings have the straight passage part that guiding groove is the circulation raceway.Lead ball isolator 6 respectively by single arc end 7, two arc ends 8, guiding ball 9 combines.
Guiding ball isolator 6 is made by engineering plastic materials, because the engineering plastic surface roughness is lower, Young's modulus is less relatively, therefore can cushion the striking force between the ball when ball screw pair moves; Single arc end 7 and two arc end 8 of guiding ball isolator 6 are all fluted, can store lubricant oil, form lubricant film easily thereby make between ball and the guiding ball isolator; The guiding groove that is installed in guiding ball 9 and circulation raceway on the guiding ball isolator cooperatively interacts, and can guarantee that the ball-recirculation chain prevents the deflection of ball isolator when the gap occurring, thereby guarantee the continuity of relative movement between ball and the isolator.
Claims (4)
1. ball screw pair with guiding ball isolator, it mainly is made up of lead screw shaft, front end end plug type reverser, nut, rear end end plug type reverser, ball and guiding ball isolator, it is characterized in that, described ball is arranged on the ball-recirculation raceway, and the ball-recirculation raceway comprises spiral rolling track, reverse raceway and straight passage three parts; Spiral rolling track is made up of the spiral part of lead screw shaft with guiding groove and nut; Oppositely raceway is made up of the circular arc raceway in the end plug type reverser with guiding groove at nut two ends; The both sides of the through hole of nut have the straight passage part that guiding groove is the circulation raceway.
2. the ball screw pair with guiding ball isolator as claimed in claim 1 is characterized in that, described guiding ball isolator is respectively by single arc end, two arc ends, and the guiding ball combines.
3. the ball screw pair with guiding ball isolator as claimed in claim 1 is characterized in that, single arc end of described guiding ball isolator and two arc end are all fluted.
4. the ball screw pair with guiding ball isolator as claimed in claim 1 is characterized in that described guiding ball isolator is made by engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105061713A CN101949436A (en) | 2010-10-14 | 2010-10-14 | Ball screw with ball guiding isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105061713A CN101949436A (en) | 2010-10-14 | 2010-10-14 | Ball screw with ball guiding isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101949436A true CN101949436A (en) | 2011-01-19 |
Family
ID=43453030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105061713A Pending CN101949436A (en) | 2010-10-14 | 2010-10-14 | Ball screw with ball guiding isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949436A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345218A (en) * | 2019-07-14 | 2019-10-18 | 上海保良精密传动设备有限公司 | A kind of end cap recycles two channel ball spline pairs and processing technology |
| CN114483902A (en) * | 2022-02-22 | 2022-05-13 | 西安华欧精密机械有限责任公司 | Ball screw pair with double-layer thread roller path |
-
2010
- 2010-10-14 CN CN2010105061713A patent/CN101949436A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345218A (en) * | 2019-07-14 | 2019-10-18 | 上海保良精密传动设备有限公司 | A kind of end cap recycles two channel ball spline pairs and processing technology |
| CN114483902A (en) * | 2022-02-22 | 2022-05-13 | 西安华欧精密机械有限责任公司 | Ball screw pair with double-layer thread roller path |
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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: 20110119 |