CN203836109U - Ball screw pair with gap compensation function - Google Patents
Ball screw pair with gap compensation function Download PDFInfo
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- CN203836109U CN203836109U CN201420229129.5U CN201420229129U CN203836109U CN 203836109 U CN203836109 U CN 203836109U CN 201420229129 U CN201420229129 U CN 201420229129U CN 203836109 U CN203836109 U CN 203836109U
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- ball
- nut
- screw pair
- screw
- ball screw
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Abstract
The utility model discloses a ball screw pair with a gap compensation function. The ball screw pair comprises a ball, a screw and a nut component. The nut component is arranged on the screw in a sleeved mode, a ball circulation rolling groove is formed between the screw and the nut component, and the ball is arranged in the ball circulation rolling groove. The nut component comprises a flange nut body, a cylindrical nut body and a pre-pressing gasket, the pre-pressing gasket is arranged between the flange nut body and the cylindrical nut body, and the pre-pressing gasket is a disc spring gasket. A gap generated due to abrasion between the ball, the screw and the nut after the screw is used for a certain time period can be eliminated, and the phenomenon that precision of the ball screw pair is affected is avoided.
Description
Technical field
The utility model relates to a kind of ball screw pair that can backlash compensation, belongs to ball screw pair technical field.
Background technique
At present, ball screw pair is that rotation motion is converted into straight line motion, or straight line motion is converted into a kind of drive mechanism of rotation motion, and typical ball screw pair is comprised of leading screw, nut and ball.
On common ball screw pair, be generally provided with precompressed mechanism, for the precompression between adjusting nut, ball and leading screw.For realizing precompressed, described nut is generally comprised of two nuts (as flange nut and cylinder nut).And at present, comparatively common precompressed mechanism generally by a pre-compressing tablet (this pre-compressing tablet in fact in the form of a ring, but row industry personnel is accustomed to being called precompressed
Sheet) form.This pre-compressing tablet is sleeved on leading screw and between two nuts, and be connected with two nuts at two ends by pin (or key), during assembling, pre-compressing tablet is sold the contiguity of (or key) adjusting and two end nuts, just can realize the adjusting of precompression between leading screw, nut, ball.
Although adopt conventional pads can realize the adjusting of precompression between leading screw, nut, ball as the precompressed mechanism of pre-compressing tablet, but when ball screw pair was used after 3～May, between ball and leading screw and nut, there are wearing and tearing, produce gap, conventional pads cannot compensate this gap, thereby affects the precision of ball screw pair.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, a kind of ball screw pair that can backlash compensation is provided, it can be eliminated leading screw and use the gap producing due to wearing and tearing between ball and leading screw and nut after a period of time, avoids it to affect the phenomenon of the precision of ball screw pair.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of ball screw pair that can backlash compensation, comprise ball, leading screw and nut assembly, nut assembly is sleeved on leading screw, between leading screw and nut assembly, be provided with ball-recirculation slot rolling, described ball is positioned at ball-recirculation slot rolling, described nut assembly comprises flange nut, cylindrical nut and precompressed pad, and precompressed pad is between flange nut and cylindrical nut, and described precompressed pad is disc-shaped spring gasket.
Adopted after technique scheme, due to precompressed pad employing of the present utility model is disc-shaped spring gasket, its can be at flange nut and cylindrical nut axially apply an equilibrant force, when ball screw pair was used after a period of time, between its ball and leading screw and nut assembly, produce wearing and tearing, make their axial generation gap, disc-shaped spring gasket utilizes its axial equilibrant force to eliminate this gap, make its close contact, thereby improved precision and the working life of ball screw pair.
Accompanying drawing explanation
Fig. 1 is the structural representation of ball screw pair that can backlash compensation of the present utility model.
Embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below,
As shown in Figure 1, a kind of ball screw pair that can backlash compensation, comprise ball, leading screw 1 and nut assembly, nut assembly is sleeved on leading screw 1, between leading screw 1 and nut assembly, be provided with ball-recirculation slot rolling, ball is positioned at ball-recirculation slot rolling, and nut assembly comprises flange nut 2, cylindrical nut 3 and precompressed pad 4, and precompressed pad 4 is between flange nut 2 and cylindrical nut 3, and precompressed pad 4 is disc-shaped spring gasket.
Working principle of the present utility model is as follows:
Due to precompressed pad 4 employings of the present utility model are disc-shaped spring gaskets, its can be at flange nut 2 and cylindrical nut 3 axially apply an equilibrant force, when ball screw pair was used after a period of time, between its ball and leading screw 1 and nut assembly, produce wearing and tearing, make their axial generation gap, disc-shaped spring gasket utilizes its axial equilibrant force to eliminate this gap, makes its close contact, thereby has improved precision and the working life of ball screw pair.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
- One kind can backlash compensation ball screw pair, comprise ball, leading screw (1) and nut assembly, nut assembly is sleeved on leading screw (1), between leading screw (1) and nut assembly, be provided with ball-recirculation slot rolling, described ball is positioned at ball-recirculation slot rolling, described nut assembly comprises flange nut (2), cylindrical nut (3) and precompressed pad (4), and precompressed pad (4) is positioned between flange nut (2) and cylindrical nut (3), it is characterized in that: described precompressed pad (4) is disc-shaped spring gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229129.5U CN203836109U (en) | 2014-05-06 | 2014-05-06 | Ball screw pair with gap compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229129.5U CN203836109U (en) | 2014-05-06 | 2014-05-06 | Ball screw pair with gap compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836109U true CN203836109U (en) | 2014-09-17 |
Family
ID=51513953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229129.5U Active CN203836109U (en) | 2014-05-06 | 2014-05-06 | Ball screw pair with gap compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276113A (en) * | 2015-11-07 | 2016-01-27 | 顾晓林 | High-precision clearance compensation thread pair device and compensation method thereof |
-
2014
- 2014-05-06 CN CN201420229129.5U patent/CN203836109U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276113A (en) * | 2015-11-07 | 2016-01-27 | 顾晓林 | High-precision clearance compensation thread pair device and compensation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Yaoguan town Qi line 213011 Wujin District Jiangsu city of Changzhou province 1 8 kilometers Patentee after: JIANGSU HONGDA NUMERICAL CONTROL SCIENCE & TECHNOLOGY CO., LTD. Address before: 213011, 1.8 kilometers, Qi Xiang highway, Changzhou, Jiangsu, Qishuyan Patentee before: Changzhou Hongda Machine Tool CNC Co., Ltd. |