CN201125995Y - Ball guide-screw pair dustproof sealed ring - Google Patents
Ball guide-screw pair dustproof sealed ring Download PDFInfo
- Publication number
- CN201125995Y CN201125995Y CNU2007200351319U CN200720035131U CN201125995Y CN 201125995 Y CN201125995 Y CN 201125995Y CN U2007200351319 U CNU2007200351319 U CN U2007200351319U CN 200720035131 U CN200720035131 U CN 200720035131U CN 201125995 Y CN201125995 Y CN 201125995Y
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- China
- Prior art keywords
- annular body
- groove
- ring
- screw pair
- ring bodies
- 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
A ball lead screw pair dustproof sealing ring is composed of an annular body and a spiral spring, wherein the annular body is single-time pressed and molded by wearable resin-like material, and the spiral spring is prepared into annulus. A groove is disposed on circumferential surface of the annular body, and the spiral spring is hoped in the groove. Inner chamber surface of the annular body is prepared into a hemispherical race which shape is same to that of a ball lead screw race, and eight uniform dirt-removing grooves are pressed on the inner chamber surface of the annular body. The spiral spring on the annular body makes the annular body generate tiny elastic deformation, so that the inner chamber of the annular body integrally wraps the ball leas screw without gap. The ball lead screw pair dustproof sealing ring can prevent foreign body and dust entering the race, remove impurity, clean the lead screw, ensure good seal effectively for a long time, prolong useful life of products and shorten interval of maintenance.
Description
Affiliated technical field
The utility model relates to a kind of dust-proof seal ring of ball screw pair, especially requires to have the high precision ball lead screw pair of dustproof effect.
Background technique
At present, employed dust-proof seal ring on the known ball screw pair is a kind of seal ring made from the nylon material of machining or compression moulding, and the dustproof face of sealing circle is and the identical ring bodies of ball screw screw thread raceway.For guaranteeing the ball screw pair precision, prevent from the error that is produced to be installed because of dust-proof seal ring, when dust-proof seal ring designs, leave the gap between its inner cavity surface and the ball screw, the size in gap is with the ball screw dimensional changes, and the more little gap of size is big more.Therefore, can only prevent that when ball screw pair turns round bigger foreign material from entering raceway, some dusts and tiny foreign material still enter raceway along with the running of ball screw pair, cause the ball screw pair wearing and tearing to be accelerated, shorten the working life of product, increased the maintenance time.
Summary of the invention
The deficiency that makes some dusts and tiny foreign material enter raceway because of the seal ring problem when turning round in order to overcome existing ball screw pair, the utility model provides a kind of ball screw pair dust-proof seal ring, can prevent preferably that foreign matter and dust from entering raceway, and get rid of foreign material effectively, the cleaning leading screw.
The technological scheme that its technical problem that solves the utility model adopts is: the ball screw pair dust-proof seal ring of being made up of ring bodies and helical spring, ring bodies is with wear resistant resin class material disposal pressed moulding, helical spring is made ring, on the ring bodies periphery, 1.25 millimeters of compacting radiuses, dark 2 millimeters annular groove, distance is 5 millimeters between the groove, the ring bodies inner cavity surface is made and the identical hemisphere raceway of ball screw screw thread raceway shape, and be suppressed with vertical with hemisphere raceway symmetry plane, the section center line becomes 30 8 of spending wide 1.5 millimeters, dark 5 millimeters five equilibrium scrubbing groove, groove one end passes to the dust-proof seal ring end face, and the other end passes to ring bodies roller surface center line.The ring helical spring of two groups of diameters 2.5 of cuff in the groove of ring bodies periphery, helical spring fastening force foot is in making ring bodies produce the resiliently deformable of trace, to guarantee that seal ring ring bodies inner chamber does not have the whole ball screw screw thread that contains in gap, the ring bodies external diameter is got certain magnitude of interference, be pressed into an end of feed screw nut device dust ring, and fix with set screw.
The beneficial effects of the utility model are, can realize not having the gap between dust-proof seal ring and ball screw, the ball nut, can prevent preferably that foreign matter and dust from entering raceway.Article 8, the scrubbing groove can be got rid of foreign material effectively, the cleaning leading screw.Two groups of annular spring cuffs make the ring bodies inner chamber to the leading screw profile pressure stable be arranged on ring bodies, can compensate effectively because of the caused wearing and tearing of leading screw long-term work, guarantee better seal.Prolong the working life of ball screw pair, shortened the blanking time of maintenance.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
This figure is a structural drawing of the present utility model
Among the figure, 1. helical spring, 2. ring bodies
Embodiment
In the drawings, external diameter, annular groove on the ring bodies (2), inner chamber body face and scrubbing groove are the physical dimensions by ball nut and ball screw, the specialized mould disposal pressed moulding.Helical spring (1) encapsulation is in the annular groove of ring bodies (2), and the ball screw pair dust-proof seal ring is that integral body is fitted in the seal ring chamber of feed screw nut, tightens the Cock screw on the feed screw nut, screws in ball screw, forms a cover ball screw pair.
Claims (3)
1. a ball screw pair dust-proof seal ring is made up of ring bodies and helical spring, it is characterized in that ring bodies wear resistant resin class material disposal pressed moulding, and helical spring is made ring, and cuff is in the groove of ring bodies periphery.
2. ball screw pair dust-proof seal ring according to claim 1 is characterized in that at ring bodies, on the ring bodies periphery, and 1.25 millimeters of compacting radiuses, dark 2 millimeters annular groove, distance is 5 millimeters between the groove.
3. ball screw pair dust-proof seal ring according to claim 2, it is characterized in that the ring bodies inner cavity surface makes and the identical hemisphere raceway of ball screw screw thread raceway shape, and be suppressed with, section center line vertical with hemisphere screw thread raceway symmetry plane become 8 of 30 degree wide 1.5 millimeters, dark 5 millimeters five equilibrium scrubbing groove, groove one end passes to the dust-proof seal ring end face, and the other end passes to ring bodies roller surface center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200351319U CN201125995Y (en) | 2007-03-15 | 2007-03-15 | Ball guide-screw pair dustproof sealed ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200351319U CN201125995Y (en) | 2007-03-15 | 2007-03-15 | Ball guide-screw pair dustproof sealed ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125995Y true CN201125995Y (en) | 2008-10-01 |
Family
ID=39999464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200351319U Expired - Fee Related CN201125995Y (en) | 2007-03-15 | 2007-03-15 | Ball guide-screw pair dustproof sealed ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125995Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984272A (en) * | 2010-10-26 | 2011-03-09 | 浙江大学 | Heavy-duty ball screw assembly of continuous lubrication |
| CN103608608A (en) * | 2012-05-10 | 2014-02-26 | 日本精工株式会社 | Ball screw device |
-
2007
- 2007-03-15 CN CNU2007200351319U patent/CN201125995Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984272A (en) * | 2010-10-26 | 2011-03-09 | 浙江大学 | Heavy-duty ball screw assembly of continuous lubrication |
| CN103608608A (en) * | 2012-05-10 | 2014-02-26 | 日本精工株式会社 | Ball screw device |
| CN103608608B (en) * | 2012-05-10 | 2016-08-17 | 日本精工株式会社 | Ball-screw apparatus |
| US9927010B2 (en) | 2012-05-10 | 2018-03-27 | Nsk Ltd. | Ball screw device |
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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: 20081001 Termination date: 20160315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |