CN202132458U - Double-nut threaded pre-tightening ball screw assembly - Google Patents
Double-nut threaded pre-tightening ball screw assembly Download PDFInfo
- Publication number
- CN202132458U CN202132458U CN201120219540U CN201120219540U CN202132458U CN 202132458 U CN202132458 U CN 202132458U CN 201120219540 U CN201120219540 U CN 201120219540U CN 201120219540 U CN201120219540 U CN 201120219540U CN 202132458 U CN202132458 U CN 202132458U
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- ball screw
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Abstract
The utility model relates to a double-nut threaded pre-tightening ball screw assembly, which is provided with a threaded lead screw, the lead screw is sleeved with a first nut and a second nut, the first nut and the second nut are connected through a flat key, a gasket is sleeved at the outer side end of the second nut, and a round nut used for regulating the space between the first nut and the second nut is mounted on the outer side of the gasket. The distance between the first nut and the second nut can be smaller through regulating the round nut, so that the first nut, as well as the second nut, and the lead screw can still run stably relatively, and the service life of the ball screw assembly is prolonged.
Description
Technical field
The utility model relates to the ball screw pair technical field, especially relates to a kind of double nut screw thread pretension ball screw pair.
Background technique
Conventional double nut ball screw pair is after long-term the use, and ball is that steel ball is easy to wear, causes between nut and the nut, is connected between nut and the leading screw and the space occurs, the lead screw pair fluctuation of service.
The model utility content
The technical problem that the utility model will solve is: overcome the deficiency of existing technology, a kind of double nut screw thread pretension ball screw pair is provided, adopt the pretension means between nut and the nut, even worn steel ball also can stable for a long time use.
The utility model solves the technological scheme that its technical problem adopted: a kind of double nut screw thread pretension ball screw pair; Has threaded leading screw; Described leading screw is with first nut, second nut; Be connected through flat key between first nut and second nut, the described second nut outboard end is with pad, and the pad outside is equipped with the round nut that is used to regulate spacing between first nut and second nut.
The beneficial effect of the utility model is: the utility model is equipped with round nut; In long-term using process, even the steel ball between first nut or second nut and the leading screw has a little wearing and tearing, between first nut and second nut space appears; Can adjust round nut; The further distance of first nut and second nut, making still can be stable between the nut of winning, second nut and the leading screw, prolongs the working life of ball screw pair.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Wherein: 1. leading screw, 2. first nut, 3. second nut, 4. flat key, 5. pad, 6. round nut.
Embodiment
Combine accompanying drawing that the utility model is further described now.The schematic representation that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1; A kind of double nut screw thread pretension ball screw pair; Have threaded leading screw 1, leading screw 1 is with between first nut 2, second nut, 3, the first nuts 2 and second nut 3 and is connected through flat key 4; Second nut, 3 outboard ends are with pad 5, and pad 5 outsides are equipped with the round nut 6 that is used to regulate spacing between first nut 2 and second nut 3.
The utility model is equipped with round nut 6; In long-term using process, even the steel ball between first nut 2 or second nut 3 and the leading screw 1 has a little wearing and tearing, between first nut 2 and second nut 3 space appears; Can adjust round nut 6; The further distance of first nut 2 and second nut 3 makes that win still can be stable between nut 2, second nut 3 and the leading screw 1, prolongs the working life of ball screw pair.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (1)
1. double nut screw thread pretension ball screw pair; It is characterized in that: have threaded leading screw; Described leading screw is with first nut, second nut; Be connected through flat key between first nut and second nut, the described second nut outboard end is with pad, and the pad outside is equipped with the round nut that is used to regulate spacing between first nut and second nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219540U CN202132458U (en) | 2011-06-24 | 2011-06-24 | Double-nut threaded pre-tightening ball screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219540U CN202132458U (en) | 2011-06-24 | 2011-06-24 | Double-nut threaded pre-tightening ball screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132458U true CN202132458U (en) | 2012-02-01 |
Family
ID=45521225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120219540U Expired - Fee Related CN202132458U (en) | 2011-06-24 | 2011-06-24 | Double-nut threaded pre-tightening ball screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615545A (en) * | 2012-03-23 | 2012-08-01 | 天水星火机床有限责任公司 | Feed device for vertical machine tool |
| CN106286741A (en) * | 2016-10-12 | 2017-01-04 | 南京理工大学 | Double-screw nut ball leading screw secondary pretightening force measuring adjusting means and method |
-
2011
- 2011-06-24 CN CN201120219540U patent/CN202132458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615545A (en) * | 2012-03-23 | 2012-08-01 | 天水星火机床有限责任公司 | Feed device for vertical machine tool |
| CN106286741A (en) * | 2016-10-12 | 2017-01-04 | 南京理工大学 | Double-screw nut ball leading screw secondary pretightening force measuring adjusting means and method |
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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: 20120201 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |