CN2167239Y - Circumference rolling type ball screw mechanism - Google Patents
Circumference rolling type ball screw mechanism Download PDFInfo
- Publication number
- CN2167239Y CN2167239Y CN 93230037 CN93230037U CN2167239Y CN 2167239 Y CN2167239 Y CN 2167239Y CN 93230037 CN93230037 CN 93230037 CN 93230037 U CN93230037 U CN 93230037U CN 2167239 Y CN2167239 Y CN 2167239Y
- Authority
- CN
- China
- Prior art keywords
- ball
- nut
- screw rod
- screw mechanism
- rolling type
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 7
- 238000003754 machining Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Transmission Devices (AREA)
Abstract
The utility model discloses a circumference roll formula ball screw mechanism, it has screw rod, nut and the ball of taking the ball raceway. The nut features that the ball rolling way on the nut is circular one, and the ball always makes circular motion in the rolling way without reverser or return channel.
Description
The utility model belongs to the screw mechanism technical field of being with ball, specifically a kind of ball screw mechanism.
Existing ball screw mechanism mainly contains three types, and promptly inner circulation type, outer circulation type and toughness steel band ball cover are circulating." Fundamentals of Machine Design " the 135th page that Higher Education Publishing House published in 1986 have been introduced preceding two kinds of structures, and they have the following disadvantages: the one, need be provided with reverser or return passage on the nut, and many with ball, complex structure; The 2nd, nut requirement on machining accuracy height, cost is expensive; The 3rd, no ball retainer, nut loading and unloading trouble.1987 the 6th phases of " world inventions " magazine the 19th page of structure of having described back a kind of form, though the type has reduced the requirement to the nut machining accuracy, but brought following shortcoming: ball must some expose in the nut outside together with the ball cover in the work, thereby structure is compact inadequately, using scope is restricted, and nut is difficult for sealing, and influence is dustproof and lubricated.
The purpose of this utility model provides a kind of simple and compact for structure, ball screw mechanism that cost is low, so that ball screw mechanism can be more widely used.
Technical solution of the present utility model is: it comprises screw rod, the nut of being with ball road and is contained in ball between screw rod, nut, it is characterized in that the ball road on the nut is a circumferential race.
The utility model can be equipped with ball retainer between screw rod, nut.The ball quantity that is contained on every circle circumferential race is identical with ball road number on the screw rod.
The utlity model has following advantage:
1, be circumferential race owing to nut is interior, thereby need not establish reversing device, nut can be done thinlyyer, and is not only few with material, and requirement on machining accuracy is low, thereby fabricating cost is low;
2, this mechanism does not have the peripheral hardware part, and nut again can be thinner, thereby compact structure, and volume is little, and is applied widely;
3, the nut two ends do not have ball and stretch out, and are convenient to sealing, strengthen dustproof, lubrication effect;
4, when having only a ball road on the nut, the ball road on the screw rod can adopt variable-pitch auger, thereby can be obtained different space rates by certain rotational speed.
Accompanying drawing is a structural representation of the present utility model.1 is screw rod among the figure, and 2 is nut, and 3 is ball retainer, and 4 is ball, and 5 is the ball road on the nut.
In the embodiment that accompanying drawing is born, screw rod 1 of the present utility model is identical with common ball screw, has spiral helicine ball road on it, and raceway is preferably the 3-6 bar.Be not the band spiral rolling track on the nut 2, its ball road is the circumference formula, circumferential plane and nut axis normal, and ball 4 is made circular movement in the raceway of certain on nut 5 all the time, thereby need not reverser or return passage.Ball retainer 3 is similar to retainer, still can keep ball 4 to stay on the circumferential race 5 on the nut after screw rod 1 leaves nut 2, thereby make nut 2 easy to loading and unloading.Ball quantity on the nut in every circle circumferential race 5 is identical with the ball road quantity on the screw rod, so that this mechanical operation is steady.
Claims (3)
1, a kind of circumference rolling type ball screw mechanism has screw rod (1), the nut (2) of band ball road and is contained in ball (4) between screw rod, nut, and it is characterized in that: the ball road (5) on the nut (2) is a circumferential race.
2, circumference rolling type ball screw according to claim 1 mechanism is characterized in that between screw rod (1) and nut (2) ball retainer (2) being housed also.
3, circumference rolling type ball screw according to claim 1 mechanism, the ball quantity that it is characterized in that being contained in every circle circumferential race is identical with ball road number on the screw rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230037 CN2167239Y (en) | 1993-01-08 | 1993-01-08 | Circumference rolling type ball screw mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230037 CN2167239Y (en) | 1993-01-08 | 1993-01-08 | Circumference rolling type ball screw mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2167239Y true CN2167239Y (en) | 1994-06-01 |
Family
ID=33806791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93230037 Expired - Fee Related CN2167239Y (en) | 1993-01-08 | 1993-01-08 | Circumference rolling type ball screw mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2167239Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059165B (en) * | 2006-12-19 | 2010-07-07 | 兰州理工大学 | Lead screw nut pair transmission control device |
-
1993
- 1993-01-08 CN CN 93230037 patent/CN2167239Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059165B (en) * | 2006-12-19 | 2010-07-07 | 兰州理工大学 | Lead screw nut pair transmission control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |