CN206468764U - A kind of ball screw - Google Patents
A kind of ball screw Download PDFInfo
- Publication number
- CN206468764U CN206468764U CN201621445360.3U CN201621445360U CN206468764U CN 206468764 U CN206468764 U CN 206468764U CN 201621445360 U CN201621445360 U CN 201621445360U CN 206468764 U CN206468764 U CN 206468764U
- Authority
- CN
- China
- Prior art keywords
- ball
- ball nut
- spiral grooves
- screw rod
- nut
- 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
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Abstract
The utility model is related to a kind of ball screw, including：Screw rod and ball nut；The ball nut is the cavity body structure of two open ends, and the screw rod is fixed and crosses the cavity in ball nut；The inside cavities of ball nut set the spiral grooves consistent with the spiral grooves on screw rod, circulating ball is set in the spiral grooves of ball nut, inner side cavity is penetrated on the outside of ball nut lubricant injection unit is set, the upper end of the ball nut sets and sets multiple screwed holes on annular protrusion, the annular protrusion.The utility model makes ball screw disclosure satisfy that higher revolution efficiency by the spiral grooves of screw rod, the spiral grooves of ball nut and circulating ball, the beginning that the design of circulating ball makes each rotated trench enter ball nut just contacts circulating ball, lubricant injection unit passes through insertion inner side on the outside of ball nut, lubricant is set to be filled on the inside of ball nut, it is ensured that the sliding effect of screw rod, ball nut and circulating ball.
Description
Technical field
The utility model is related to screw technique field, more particularly to a kind of ball screw.
Background technology
In various linear transmission systems, usually through the cooperation of the screw rod and nut of ball screw device, changed rotating
For Linear transmission.In addition, being arranged in pairs or groups each other with screw rod by being recycled the ball and ball nut of start again, to reduce ball nut
And the frictional force between screw rod, linear transmission system is more smoothed out when operation.
However, in the conventional technology, because ball-recirculation rolls the ball loop passed through and is arranged on screw shaft through spiral shell
In the circumferential lateral surface in the hole that female component passes through, thus it is upward outward in footpath, and the diameter of nut member, which needs to expand, corresponds to rolling
The amount of pearl loop feature.As a result, nut member becomes large-sized.Moreover, in order to be able to return to rolling vertically relative to nut member
Pearl, forming the processing step in ball loop becomes trouble.In addition, because end component is configured to be installed into nut member
Inside two ends, therefore in nut member, the shape and end component of component is held to be located at the shape of the attachment area in nut member
Shape is complicated.As a result, the manufacture of nut member and assembling process are complicated, the productivity ratio reduction of ball screw mechanism.
Therefore, prior art needs to improve.
The content of the invention
The utility model discloses a kind of ball screw, to solve problems of the prior art.
A kind of ball screw, including：
Screw rod and ball nut；
The ball nut is the cavity body structure of two open ends, and the screw rod is fixed and crosses the cavity in ball nut；
Spiral grooves are set on the screw rod, and the inside cavities of ball nut set consistent with the spiral grooves on screw rod
Set in spiral grooves, the spiral grooves of ball nut in circulating ball, the outer wall of ball nut and ball channel is set, make screw rod
When being rotationally advancing, circulating ball loop cycle rolls forward, the upper end of ball nut sets lubricant injection unit, the profit
Lubrication prescription injection unit penetrates into inner side cavity on the outside of ball nut, and the upper end of the ball nut sets annular protrusion, made
Multiple screwed holes are set on the " T " shape structure in section of the ball nut, the annular protrusion, for ball nut to be fixed
In in plant equipment used.
In another embodiment based on above-mentioned ball screw, the spiral grooves set on the screw rod are up to 4,
Corresponding, the spiral grooves of the ball nut are up to 4, and corresponding circulating ball at most sets 4 groups, corresponding, ball
Passage is up to 4, and the spiral grooves of screw rod, the spiral grooves of ball nut, the quantity one of circulating ball and ball channel
Cause.
In another embodiment based on above-mentioned ball screw, the spiral grooves opening diameter of the ball nut is less than
The diameter of circulating ball, and diameter of the inside diameter more than circulating ball of spiral grooves, make circulating ball in ball nut
Freely roll and do not fall off in spiral grooves.
In another embodiment based on above-mentioned ball screw, the spiral grooves opening diameter of the screw rod is more than described
The diameter of the spiral grooves of ball nut, and diameter of the depth less than the spiral grooves of ball nut of the spiral grooves of screw rod.
In another embodiment based on above-mentioned ball screw, the quantity of the screwed hole is 4 or 6.
In another embodiment based on above-mentioned ball screw, the lubricant injection unit upper end is provided with seal cap,
After lubricant injection unit injects lubricant, seal cap blocks the lubricant main-inlet of lubricant injection unit, prevents lubrication
Agent is flowed out.
In another embodiment based on above-mentioned ball screw, the circulating ball includes outer circulation shape and interior circulation
Shape.
Compared with prior art, the utility model has advantages below：
The utility model enables ball screw by the spiral grooves of screw rod, the spiral grooves of ball nut and circulating ball
Enough to meet higher revolution efficiency, the beginning that the design of circulating ball makes each rotated trench enter ball nut is followed with regard to contact
Ring ball, lubricant injection unit enables lubricant to be filled on the inside of ball nut by insertion inner side on the outside of ball nut,
It ensure that the sliding effect of screw rod, ball nut and circulating ball.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used in description of the prior art does one and simply introduced.
Fig. 1 is a kind of structural representation of ball screw of the present utility model.
Fig. 2 is a kind of structural representation of the circulating ball of ball screw of the present utility model.
In figure：1 screw rod, 2 ball nuts, 3 ball channels, 4 circulating balls, 5 lubricant injection units, 6 screwed holes, 7 rings
Shape is raised.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is only a part of embodiment of the utility model, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1 is a kind of structural representation of ball screw of the present utility model, and such as Fig. 1, the ball screw includes：
Screw rod 1 and ball nut 2；
The ball nut 2 is the cavity body structure of two open ends, and the screw rod 1 is fixed and crossed in the chamber of ball nut 2
Body；
Spiral grooves are set on the screw rod 1, and the inside cavities of ball nut 2 are set and the spiral grooves one on screw rod 1
Set in the spiral grooves of cause, the spiral grooves of ball nut 2 in circulating ball 4, the outer wall of ball nut 2 and ball channel is set
3, make screw rod 1 when being rotationally advancing, the loop cycle rolls forward of circulating ball 4, the upper end of ball nut 2 sets lubricant to inject
Unit 5, the lubricant injection unit 5 penetrates into inner side cavity, the upper end of the ball nut 2 by the outside of ball nut 2
Annular protrusion 7 is set, makes to set multiple screwed holes on the " T " shape structure in section of the ball nut 2, the annular protrusion 7
6, for ball nut 2 to be fixed on to plant equipment used.
The spiral grooves set on the screw rod 1 are up to 4, and corresponding, the spiral grooves of the ball nut 2 are most
For 4, at most 4 groups of the setting of corresponding circulating ball 4, corresponding, ball channel 3 up to 4, and the spiral grooves of screw rod 1,
The spiral grooves of ball nut 2, circulating ball 4 are consistent with the quantity of ball channel 3.
The spiral grooves opening diameter of the ball nut 2 is less than the diameter of circulating ball 4, and the inside of spiral grooves is straight
Footpath is more than the diameter of circulating ball 4, circulating ball 4 is freely rolled and is not fallen off in the spiral grooves of ball nut 2.
The spiral grooves opening diameter of the screw rod 1 is more than the diameter of the spiral grooves of the ball nut 2, and screw rod 1
Spiral grooves depth be less than ball nut 2 spiral grooves diameter.
The quantity of the screwed hole 6 is 4 or 6.
The upper end of lubricant injection unit 5 is provided with seal cap, after lubricant injection unit injects lubricant, seal cap
The lubricant main-inlet of lubricant injection unit is blocked, prevents lubricant from flowing out.
The circulating ball 4 includes outer circulation shape and interior circulation shape.
Fig. 2 is a kind of structural representation of the circulating ball of ball screw of the present utility model, as shown in Fig. 2 a is to follow outside
The circulating ball of annular, b is the circulating ball of interior circulation shape.
A kind of ball screw provided by the utility model is described in detail above, it is used herein specifically individual
Example is set forth to principle of the present utility model and embodiment, and the explanation of above example is only intended to help and understands this reality
With new method and its core concept；Simultaneously for those of ordinary skill in the art, according to thought of the present utility model,
It will change in specific embodiments and applications, in summary, this specification content should not be construed as to this
The limitation of utility model.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc.,
It should be included within protection domain of the present utility model.
Claims (7)
1. a kind of ball screw, it is characterised in that including：
Screw rod and ball nut；
The ball nut is the cavity body structure of two open ends, and the screw rod is fixed and crosses the cavity in ball nut；
Spiral grooves are set on the screw rod, and the inside cavities of ball nut set the spiral consistent with the spiral grooves on screw rod
Set in groove, the spiral grooves of ball nut in circulating ball, the outer wall of ball nut and ball channel is set, make screw rod in rotation
When turning to advance, circulating ball loop cycle rolls forward, the upper end of ball nut sets lubricant injection unit, the lubricant
Injection unit penetrates into inner side cavity on the outside of ball nut, and the upper end of the ball nut sets annular protrusion, makes described
Multiple screwed holes are set on the " T " shape structure in section of ball nut, the annular protrusion, for ball nut to be fixed on into institute
In plant equipment.
2. ball screw according to claim 1, it is characterised in that the spiral grooves set on the screw rod are up to 4
Bar, corresponding, the spiral grooves of the ball nut are up to 4, and corresponding circulating ball at most sets 4 groups, corresponding, rolling
Pearl passage is up to 4, and the spiral grooves of screw rod, the spiral grooves of ball nut, the quantity of circulating ball and ball channel
Unanimously.
3. ball screw according to claim 1, it is characterised in that the spiral grooves opening diameter of the ball nut is small
It is more than the diameter of circulating ball in the inside diameter of the diameter of circulating ball, and spiral grooves, makes circulating ball in ball nut
Spiral grooves in freely roll and do not fall off.
4. ball screw according to claim 1, it is characterised in that the spiral grooves opening diameter of the screw rod is more than institute
The diameter of the spiral grooves of ball nut is stated, and the depth of the spiral grooves of screw rod is straight less than the spiral grooves of ball nut
Footpath.
5. ball screw according to claim 1, it is characterised in that the quantity of the screwed hole is 4 or 6.
6. ball screw according to claim 1, it is characterised in that the lubricant injection unit upper end is provided with sealing
Cap, after lubricant injection unit injects lubricant, seal cap blocks the lubricant main-inlet of lubricant injection unit, prevents profit
Lubrication prescription flows out.
7. ball screw according to claim 1, it is characterised in that the circulating ball includes outer circulation shape and interior circulation
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621445360.3U CN206468764U (en) | 2016-12-27 | 2016-12-27 | A kind of ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621445360.3U CN206468764U (en) | 2016-12-27 | 2016-12-27 | A kind of ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468764U true CN206468764U (en) | 2017-09-05 |
Family
ID=59711821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621445360.3U Expired - Fee Related CN206468764U (en) | 2016-12-27 | 2016-12-27 | A kind of ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468764U (en) |
-
2016
- 2016-12-27 CN CN201621445360.3U patent/CN206468764U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20171227 |