CN205978320U - Dislocation ball nut ball screw - Google Patents
Dislocation ball nut ball screw Download PDFInfo
- Publication number
- CN205978320U CN205978320U CN201621024123.XU CN201621024123U CN205978320U CN 205978320 U CN205978320 U CN 205978320U CN 201621024123 U CN201621024123 U CN 201621024123U CN 205978320 U CN205978320 U CN 205978320U
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- Prior art keywords
- nut
- dislocation
- ball
- precompressed
- ball screw
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Abstract
The utility model discloses a dislocation ball nut ball screw, including dislocation nut, reverse ware, lead screw, ball, the dislocation nut is fixed on the lead screw, is provided with the helicla flute on the circumference in the dislocation nut, forms the spiral track, is provided with inverted groove on the dislocation nut, and reverse ware is installed in dislocation nut inverted groove and in the middle of being located two teeth on the spiral track, the spiral track of switch -on dislocation nut, and the circulation of rolling is realized through reverse ware to the ball. The utility model relates to a dislocation ball nut ball screw's dislocation nut is compared with the two nuts of tradition, has changed traditional pair of nut and has used the trimmer to apply the mode of pre -compaction, but applyed the pre -compaction through the pitch that changes the middle thread groove of nut to has simplified dislocation nut structure, need not adjusting shim and key isotructure, by one the dislocation nut directly constitute, saved the space, reduced process time and processing cost.
Description
Technical field
This utility model is related to a kind of ball screw technical field, particularly to a kind of dislocation ball nut ball screw.
Background technology
At present, ball-screw is widely used in various industrial equipments and precision instrument.Between the axial direction of ball screw framework
Gap, generally refers to leading screw and maintains static, and under limiting nut turn state, when nut is subject to axial force, nut is relative to screw rod
Axial displacement.Eliminate the gap of ball-screw nut and pretightning force is applied to it, very necessary for realizing precision drive.For
This has pad adjusting method frequently with double nuts structure, conventional clearance adjustment method.Pad adjusting method typically uses screw two
Flanged nut is fixed on the both sides of housing, and shimming in the middle of the flange of a nut wherein, the thickness of adjust pad
Nut is made to produce axial displacement, to eliminate gap and to produce pretightning force.This double nuts structure, needs nut wherein
Shimming in the middle of flange, complex structure, increased process time and cost, and the two of double nut nuts occupy whole spiral shell
Female very big space.
Utility model content
In order to overcome the shortcomings of existing research, this utility model patent provides a kind of dislocation ball nut ball screw.
This dislocation nut applies precompressed by the pitch changing nut middle screw groove, thus simplifying the structure of dislocation nut,
Without structures such as adjust pad and keys, directly constituted by a dislocation nut, save space, reduce process time and one-tenth
This.For realizing above-mentioned functions, above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals：
The utility model discloses a kind of dislocation ball nut ball screw, including dislocation nut, reverser, screw mandrel, rolling
Pearl, dislocation nut is fixed on screw mandrel, and dislocation nut inner periphery is provided with helicla flute, forms helical orbit, on dislocation nut
It is provided with opposing slot, reverser is arranged in dislocation nut opposing slot and is located in the middle of two teeth of helical orbit, connects dislocation spiral shell
Female helical orbit, ball is realized rolling circulation by reverser.
Further, described dislocation nut is double nut, and double nut is nut A and nut B, and nut A is located at dislocation nut
Left part, nut B be located at dislocation nut right part.
Further, described screw mandrel at least one end is to lead to tooth completely.
Further, described dislocation nut is using dislocation precompressed mode, the spiral shell of the nut middle screw groove that misplaced by change
Away from applying the mode of precompressed.
When the precompressed weighing load Ppl about three times direction of principal axis weighing load P effect of the nut that misplaces, in order to eliminate nut B
Precompressed Ppl, within precompressed weighing load Ppl should be set in the 1/3 of maximum direction of principal axis weighing load.Addendum modification is in precompressed amount three
During times direction of principal axis weighing load, the nut B of dislocation nut is 1/2 addendum modification during single nut, the nut B rigidity of dislocation nut
For single nut 2 times.
The dislocation nut of dislocation nuts ball screw mandrel of the present utility model, compared with traditional double nut, changes traditional double spiral shell
Female mode applying precompressed using tab, but precompressed is applied by the pitch changing nut middle screw groove, thus simple
Change dislocation nut structure, without structures such as adjust pad and keys, directly constituted by a dislocation nut, save space, fall
Low process time and processing cost.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of dislocation ball nut ball screw structural representation described in the utility model.
Fig. 2 is a kind of dislocation ball nut ball screw precompressed load schematic diagram described in the utility model.
In in figure：1st, misplace nut；2nd, reverser；3rd, screw mandrel；4th, ball；5th, nut A；6th, nut B.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus make apparent clear and definite to protection domain of the present utility model
Define.
As shown in figure 1, the utility model discloses a kind of dislocation ball nut ball screw, include dislocation nut 1, reverse
Device 2, screw mandrel 3, ball 4, dislocation nut 1 is fixed on screw mandrel 3, dislocation nut 1 inner periphery is provided with helicla flute, forms spiral
Track, dislocation nut 1 is provided with opposing slot, and reverser 2 is arranged in dislocation nut 1 opposing slot and is located at helical orbit two
In the middle of tooth, connect the helical orbit of dislocation nut 1, ball 4 passes through reverser 2 and realizes rolling circulation.
Described dislocation nut 1 is double nut, and double nut is nut A5 and nut B6, and nut A5 is located at a left side for dislocation nut 1
Portion, nut B6 is located at the right part of dislocation nut 1.
Described screw mandrel 3 at least one end is to lead to tooth completely.
Described double nut nut 1, using dislocation precompressed mode, is applied by the pitch changing dislocation nut 1 middle screw groove
Plus the mode of precompressed.
As shown in Fig. 2 when the precompressed weighing load Ppl about three times direction of principal axis weighing load P effect of the nut 1 that misplaces, being
Eliminate the precompressed Ppl of nut B6, within precompressed weighing load Ppl should be set in the 1/3 of maximum direction of principal axis weighing load, this is
One of key point of precompressed.In precompressed amount three times direction of principal axis weighing load, the nut B6 of dislocation nut 1 is single spiral shell to addendum modification
1/2 addendum modification during cap, the nut B6 of dislocation nut 1 is rigidly 2 times of single nut, and this is the two of the key point of precompressed.Not yet
There are this two key points, the simply change of structure, pre-compressed effect will not be got well.
The dislocation nut of dislocation nuts ball screw mandrel of the present utility model, compared with traditional double nut, changes traditional double spiral shell
Female mode applying precompressed using tab, but precompressed is applied by the pitch changing nut middle screw groove, thus simple
Change dislocation nut structure, without structures such as adjust pad and keys, directly constituted by a dislocation nut, save space, fall
Low process time and processing cost.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any change or replacement expected without creative work, all should cover within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be defined by the protection domain that claims are limited.
Claims (6)
1. a kind of dislocation ball nut ball screw it is characterised in that include dislocation nut (1), reverser (2), screw mandrel (3),
Ball (4), dislocation nut (1) is fixed on screw mandrel (3), dislocation nut (1) inner periphery is provided with helicla flute, forms spiral track
Road, dislocation nut (1) is provided with opposing slot, and reverser (2) is arranged in dislocation nut (1) opposing slot and is located at helical orbit
In the middle of two teeth, connect the helical orbit of dislocation nut (1), ball (4) passes through reverser (2) and realizes rolling circulation.
2. a kind of dislocation ball nut ball screw according to claim 1 is it is characterised in that described dislocation nut (1)
For double nut, double nut is nut A (5) and nut B (6), and nut A (5) is located at the left part of dislocation nut (1), nut B (6) position
Right part in dislocation nut (1).
3. a kind of dislocation ball nut ball screw according to claim 1 it is characterised in that described screw mandrel (3) at least
One end is had to be to lead to tooth completely.
4. a kind of dislocation ball nut ball screw according to claim 1 is it is characterised in that described dislocation nut (1)
Using dislocation precompressed mode, by way of the pitch of change dislocation nut (1) middle screw groove is to apply precompressed.
5. a kind of dislocation ball nut ball screw according to claim 1 is it is characterised in that its addendum modification is in precompressed amount
During three times direction of principal axis weighing load, dislocation nut (1) nut A (5) or nut B (6) addendum modification be during single nut 1/2 change
Position amount, the nut A (5) or nut B (6) of dislocation nut (1) are rigidly 2 times of single nut.
6. a kind of dislocation ball nut ball screw according to claim 1 it is characterised in that dislocation nut (1) pre-
When pressing weighing load about three times direction of principal axis weighing load to act on, precompressed weighing load should be set in maximum direction of principal axis weighing load
Within 1/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621024123.XU CN205978320U (en) | 2016-08-31 | 2016-08-31 | Dislocation ball nut ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621024123.XU CN205978320U (en) | 2016-08-31 | 2016-08-31 | Dislocation ball nut ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978320U true CN205978320U (en) | 2017-02-22 |
Family
ID=58039468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621024123.XU Active CN205978320U (en) | 2016-08-31 | 2016-08-31 | Dislocation ball nut ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122410A (en) * | 2016-08-31 | 2016-11-16 | 浙江卓求传动科技有限公司 | A kind of dislocation ball nut ball screw |
-
2016
- 2016-08-31 CN CN201621024123.XU patent/CN205978320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122410A (en) * | 2016-08-31 | 2016-11-16 | 浙江卓求传动科技有限公司 | A kind of dislocation ball nut ball screw |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |