CN204921887U - Ball screw shaft - Google Patents
Ball screw shaft Download PDFInfo
- Publication number
- CN204921887U CN204921887U CN201520161599.7U CN201520161599U CN204921887U CN 204921887 U CN204921887 U CN 204921887U CN 201520161599 U CN201520161599 U CN 201520161599U CN 204921887 U CN204921887 U CN 204921887U
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- CN
- China
- Prior art keywords
- ball
- nut
- screw shaft
- lead screw
- fuel feeding
- 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.)
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Abstract
The utility model provides a ball screw shaft is equipped with in the lead screw axle along axially extended fuel feeding hole, because of be equipped with the fuel feeding hole that makes this hole and ball raceway intercommunication on the circumferencial direction, so even in the mechanism with the nut rotation, also can reach it need not shut down, and carry out the reliable effect of fuel feeding on the spot to the ball in the nut. As ball screw shaft's structure, be through lead screw axle (3) by be equipped with the heliciform thread groove on the outer peripheral face ball raceway (5), and be equipped with on the inner peripheral surface form between ball raceway (5) of nut (1) of heliciform thread groove, the equipment has a plurality of balls (7) in the spiral helicine cavity to through constituting for fuel feeding hole (7) in accessing to the nut rather than the intercommunication and from the circumferencial direction along axially extended fuel feeding hole (9) and formation in lead screw axle (3).
Description
Technical field
The utility model relates to the ball screw in a kind of industrial machinery for comprising machine tool and injection molding machine, semiconductor manufacturing facility etc.
Background technique
In ball screw in the past, usually on the peripheral part of nut flange, be provided with oil-feed port.
The fuel supply method of usual ball screw; by the oil-feed port set by the peripheral part of nut flange; fuel feeding is carried out in nut; but; when when using the mechanism using nut as solid of rotation; when carrying out interpolation oiling, then fuel feeding can be carried out after all needing machinery to shut down at every turn.
Model utility content
In order to solve described problem, the utility model provides a kind of ball screw, has: lead screw shaft, and it is provided with spiral helicine ball road on outer circumferential face; Nut, it has spiral helicine ball road on inner peripheral surface; With multiple loaded ball, it is configured at the ball road relatively and in the raceway formed making the ball road of described lead screw shaft and described nut, the feature of described ball screw is, be provided with the oil supply hole extended vertically in the inside of described lead screw shaft, and multiple oil supply holes that itself and the circumferencial direction from lead screw shaft are done to extend are connected.
According to described structure; lead screw shaft is provided with the oil supply hole extended vertically; and be provided with the oil supply hole that this hole is connected with ball road further in a circumferential direction; like this; even if using in the mechanism using nut as solid of rotation; and shutdown process need not be carried out to machinery, just can reliably to the ball fuel feeding in nut.
Accompanying drawing explanation
Fig. 1 is the side view of the ball-screw apparatus of present embodiment.
Description of reference numerals
1 nut
3 lead screw shaft
5 ball road
7 circumferencial direction oil supply holes
9 axial oil supply holes
Embodiment
As shown in Figure 1, according to the utility model, ball-screw apparatus be by by be provided with on outer circumferential face spiral thread groove lead screw shaft 3 ball road 5, formed with the ball road 5 of nut 1 being provided with spiral thread groove on inner peripheral surface, be assembled with multiple ball 7 in helical cavity raceway, and by being provided with the oil supply hole 9 that extends vertically and being formed as coupled logical and form from the oil supply hole 7 that circumferencial direction leads in nut in lead screw shaft 3.
According to present embodiment; lead screw shaft is provided with the oil supply hole 9 extended vertically; and be provided with the oil supply hole 7 that this hole is connected with ball road 5 further in a circumferential direction; like this; even if using in the mechanism using nut as solid of rotation; also shutdown process need not be carried out to machinery, just can reliably to the ball fuel feeding in nut.
Claims (1)
1. a ball screw, has:
Lead screw shaft, it is provided with spiral helicine ball road on outer circumferential face;
Nut, it is provided with spiral helicine ball road on inner peripheral surface; With
Multiple loaded ball, it is configured at the ball road making the ball road of described lead screw shaft and described nut and relatively, in the raceway formed, it is characterized in that,
Be provided with the oil supply hole extended vertically in the inside of described lead screw shaft, and multiple oil supply holes that itself and the circumferencial direction from lead screw shaft are done to extend are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161599.7U CN204921887U (en) | 2015-03-20 | 2015-03-20 | Ball screw shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161599.7U CN204921887U (en) | 2015-03-20 | 2015-03-20 | Ball screw shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921887U true CN204921887U (en) | 2015-12-30 |
Family
ID=54971016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520161599.7U Active CN204921887U (en) | 2015-03-20 | 2015-03-20 | Ball screw shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170877A (en) * | 2019-05-24 | 2019-08-27 | 黄石百斯特智能科技股份有限公司 | A kind of hollow ball screw with high intensity |
-
2015
- 2015-03-20 CN CN201520161599.7U patent/CN204921887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170877A (en) * | 2019-05-24 | 2019-08-27 | 黄石百斯特智能科技股份有限公司 | A kind of hollow ball screw with high intensity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |