CN204572984U - Ball screw - Google Patents
Ball screw Download PDFInfo
- Publication number
- CN204572984U CN204572984U CN201520161625.6U CN201520161625U CN204572984U CN 204572984 U CN204572984 U CN 204572984U CN 201520161625 U CN201520161625 U CN 201520161625U CN 204572984 U CN204572984 U CN 204572984U
- Authority
- CN
- China
- Prior art keywords
- ball
- nut
- ball screw
- rolling groove
- lead screw
- 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
Abstract
The utility model is to prevent the insufficient lubrication of ball screw and not occur for the purpose of stripping too early and provide a kind of ball screw.As the formation of this ball screw, be made up of the Sealing (7) of lead screw shaft (1), nut (3), ball (5) and ring-type.The cylindrical part of nut (3) is provided with oil supply hole (11), can to DFF Direct Fuel Feed near ball (5).
Description
Technical field
The utility model relates to the ball screw for lathe and injection moulding machine.
Background technique
As ball screw in the past, the lip part of nut is provided with oil supply hole.
For conventional art namely from the fuel feeding that the flange of nut carries out, and have and insufficient lubrication can occur according to the using method of ball screw and the problem of premature harm etc. occurs.
Model utility content
The purpose of this utility model is, prevent ball screw drive and to-and-fro motion time occur insufficient lubrication, then there is not premature harm.
The utility model in order to solve above-mentioned problem, and provides following ball screw
(1) ball screw, has: lead screw shaft, and it has spiral helicine ball rolling groove on outer circumferential face; Nut, it has spiral helicine ball rolling groove on inner peripheral surface; With multiple load ball, its ball rolling groove being configured at ball rolling groove and the described nut making described lead screw shaft is relatively and in the raceway formed, the feature of described ball screw is, the main part outer circumferential face of described nut is provided with oil supply hole, can to DFF Direct Fuel Feed in circulation loop.
According to the utility model, good lubricating status can be maintained.
Accompanying drawing explanation
Fig. 1 is the sectional view of the ball screw of mode of execution of the present utility model.
Description of reference numerals
1 lead screw shaft
3 nuts
5 balls
7 Sealings
11 oil supply holes
Embodiment
Ball screw is known to as rotary motion is transformed to the mechanism of straight line motion.Ball screw has: the lead screw shaft being formed with the straight line shape of spiral helicine ball rolling groove on outer circumferential face; With the nut being formed with the spiral helicine ball rolling groove relative with the ball rolling groove of lead screw shaft on inner peripheral surface, this nut screws togather with the outer circumferential side of lead screw shaft via the multiple ball be installed between two ball rolling grooves, can moving axially along lead screw shaft by making lead screw shaft rotate.
Ball screw by forming oil film by lubricant oil or lubricating grease between ball and rolled portion, and has the effect that premature harm does not occur.
The utility model is made, hereinafter, with reference to the accompanying drawings of mode of execution of the present utility model in view of this situation.
As shown in Figure 1, ball screw of the present utility model is made up of the Sealing 7 of lead screw shaft 1, nut 3, ball 5 and ring-type.The inner peripheral surface of nut 3 is formed with spiral chute, the outer circumferential face of lead screw shaft 1 is formed with spiral chute.Multiple ball 5 is configured with between the raceway formed by the spiral chute of nut 3 and the spiral chute of lead screw shaft 1.
On nut 3, be formed with the oil supply hole 11 extended from the spiral chute of main part periphery geared nut 3.The recess for installing Sealing 7 is formed at the axial two ends of nut 3.In the recess of nut 3, inside axially, configure Sealing 7, these parts are fixed on the end face of recess by not shown bolt.
According to ball screw of the present utility model, to DFF Direct Fuel Feed in circulation loop, then can maintain the good lubricating status of ball screw, and prevent too early stripping via oil supply hole 11.
Claims (1)
1. a ball screw, has:
Lead screw shaft, it has spiral helicine ball rolling groove on outer circumferential face;
Nut, it has spiral helicine ball rolling groove on inner peripheral surface; With
Multiple load ball, its ball rolling groove being configured at ball rolling groove and the described nut making described lead screw shaft relatively and in the raceway formed, the feature of described ball screw is,
The main part outer circumferential face of described nut is provided with oil supply hole, can to DFF Direct Fuel Feed in circulation loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161625.6U CN204572984U (en) | 2015-03-20 | 2015-03-20 | Ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161625.6U CN204572984U (en) | 2015-03-20 | 2015-03-20 | Ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572984U true CN204572984U (en) | 2015-08-19 |
Family
ID=53865625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520161625.6U Expired - Fee Related CN204572984U (en) | 2015-03-20 | 2015-03-20 | Ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869711A (en) * | 2018-06-29 | 2018-11-23 | 维沃移动通信有限公司 | A kind of transmission device and terminal device |
-
2015
- 2015-03-20 CN CN201520161625.6U patent/CN204572984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869711A (en) * | 2018-06-29 | 2018-11-23 | 维沃移动通信有限公司 | A kind of transmission device and terminal device |
| CN108869711B (en) * | 2018-06-29 | 2021-01-08 | 维沃移动通信有限公司 | Transmission device and terminal equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20210320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |