CN101984272A - Heavy-duty ball screw assembly of continuous lubrication - Google Patents
Heavy-duty ball screw assembly of continuous lubrication Download PDFInfo
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- CN101984272A CN101984272A CN 201010520422 CN201010520422A CN101984272A CN 101984272 A CN101984272 A CN 101984272A CN 201010520422 CN201010520422 CN 201010520422 CN 201010520422 A CN201010520422 A CN 201010520422A CN 101984272 A CN101984272 A CN 101984272A
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Abstract
The invention discloses a heavy-duty ball screw assembly of continuous lubrication. A nut and a screw rotate oppositely through balls in a ball raceway; the length of the nut is 4 times greater than that of the screw; the diameter of each ball is 1/4 time of the diameter of the screw; three groups of ball guiding holes are arranged on the nut, are respectively positioned at two sides of the axial line of the nut with the radial difference of 180 degrees, and are sequentially arranged in a staggered mode along the axial direction; holes which are communicated with a ball raceway are respectively arranged at two ends of each group of ball guiding holes, and the two holes are connected through a ball guiding pipe outside the nut; lubricating oil filling holes are formed on the positions opposite to each group of ball guiding holes and are communicated with the ball raceway; and annular concave surfaces are respectively arranged at two ends of the nut, and a sealing ring is fixed in each annular concave surface. The heavy-duty ball screw assembly of continuous lubrication of the invention has simple structure, has uniform load change in the ball nut, can greatly improve the bearing load, can fill the lubricating oil in a working state, has good sealing effect, and provides the convenience for realizing continuous lubrication and equipment maintenance and repair.
Description
Technical field
The present invention relates to the helicoidal gear of screw rod and nut body, be specifically related to a kind of ball screw pair.
Background technique
Ball screw pair is extensive use of in a plurality of fields such as machinery, metallurgy, water power water conservancy, mining machinery, railway, building machinery, iron and steel, packing, petrochemical industry, instrument and apparatus, precision type instrument.The ball screw pair that uses comprises leading screw, nut, ball and leads the pearl pipe at present, the ball road that raceway groove on nut and the leading screw is combined to form, nut and leading screw relatively rotate by the ball in ball road, but exist and to realize the shortcoming of continuous lubrication, and it is relatively poor to bear the ability of heavy load.For the ball screw pair of installing, requirement on machining accuracy is very high, for realizing good lubricating, frequent dismounting lubricating system can cause installation, machining accuracy to descend undoubtedly like this.
Summary of the invention
Defective in view of existing ball screw pair exists the purpose of this invention is to provide a kind of heavily loaded ball screw pair that can realize continuous lubrication.
The heavily loaded ball screw pair of continuous lubrication of the present invention, comprise leading screw, nut, ball and lead pearl pipe, raceway groove on nut and the leading screw is combined to form ball road, nut and leading screw relatively rotate by the ball in ball road, the length of nut is greater than 4 times of the leading screw diameter, the diameter of ball is 1/4 times of leading screw diameter, on nut, be provided with three groups and lead the hole of bead, lead the hole of bead for three groups and lay respectively at the nut axis both sides that radially differ 180 °, and be staggered successively vertically, every group of two ends of leading the hole of bead have the hole that is connected with ball road respectively, these two holes link to each other by leading the pearl pipe in the nut outside, on every group of opposite of leading the hole of bead, offer the lubricant oil hand-hole, the lubricant oil hand-hole is communicated with ball road, two ends at nut are respectively equipped with loop concave, and first seal ring is arranged in one of them loop concave, fix by first injection head screw, second seal ring is arranged in another loop concave, fix by second injection head screw.
The heavily loaded ball screw pair of continuous lubrication of the present invention, simple in structure, during work, ball is at spiral rolling track and lead running continuously in the circulating path of forming in the hole of bead, because nut is grown (length is greater than 4 times of the leading screw diameter), ball is big (diameter of ball is 1/4 times of leading screw diameter), therefore, load variations in the ball nut is even, can increase substantially rated load and maximum permission dynamic load, lubricant oil enters ball road by the lubricant oil hand-hole, even also can be lubricated under the working state like this, simultaneously seal ring is set respectively, thereby has guaranteed that ball screw pair has good sealing condition at the two ends of nut.
The present invention is simple in structure, load variations in the ball nut is even, can increase substantially rated load and maximum permission dynamic load, the lubricant oil of also can annotating under the working state, and good sealing effect provides great convenience for realizing that continuous lubrication and corrective maintenance are safeguarded.
Description of drawings
Fig. 1 is the heavily loaded ball screw pair structural representation of continuous lubrication;
Fig. 2 is that the A-A of Fig. 1 is to view.
Among the figure: 1. leading screw, 2. nut, 3. first injection head screw, 4. first seal ring is 5. led the pearl pipe, 6. lubricant oil hand-hole, 7. pressing plate, 8. second seal ring, 9. second injection head screw, 10. ball, 11,12 are respectively every group of hole of leading two ends, the hole of bead.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
With reference to accompanying drawing, the heavily loaded ball screw pair of continuous lubrication comprises leading screw 1, nut 2, ball 10 and lead pearl pipe 5, raceway groove on nut 2 and the leading screw 1 is combined to form ball road, nut 2 and leading screw 1 relatively rotate by the ball in ball road 10, the length of nut 2 is greater than 4 times of leading screw 1 diameter, the diameter of ball 10 is 1/4 times of leading screw 1 diameter, on nut, be provided with three groups and lead the hole of bead, lead the hole of bead for three groups and lay respectively at the nut axis both sides that radially differ 180 °, and be staggered successively vertically, every group of two ends of leading the hole of bead have the hole 11 that is connected with ball road respectively, 12, these two holes link to each other by leading pearl pipe 5 in the nut outside, on every group of opposite of leading the hole of bead, offer lubricant oil hand-hole 6, lubricant oil hand-hole 6 is communicated with ball road, two ends at nut 2 are respectively equipped with loop concave, first seal ring 4 is arranged in one of them loop concave, fixing by first injection head screw 3 perpendicular to nut 2 axis, second seal ring 8 is arranged in another loop concave, fixing by second injection head screw 9 perpendicular to nut 2 axis.
Claims (1)
1. the heavily loaded ball screw pair of continuous lubrication, comprise leading screw (1), nut (2), ball (10) and lead pearl pipe (5), raceway groove on nut (2) and the leading screw (1) is combined to form ball road, nut (2) and leading screw (1) relatively rotate by the ball in ball road (10), it is characterized in that: the length of nut (2) is greater than 4 times of leading screw (1) diameter, the diameter of ball (10) is 1/4 times of leading screw (1) diameter, on nut, be provided with three groups and lead the hole of bead, lead the hole of bead for three groups and lay respectively at the nut axis both sides that radially differ 180 °, and be staggered successively vertically, every group of two ends of leading the hole of bead have the hole (11 that is connected with ball road respectively, 12), these two holes link to each other by leading pearl pipe (5) in the nut outside, on every group of opposite of leading the hole of bead, offer lubricant oil hand-hole (6), lubricant oil hand-hole (6) is communicated with ball road, two ends at nut (2) are respectively equipped with loop concave, first seal ring (4) is arranged in one of them loop concave, fixing by first injection head screw (3), second seal ring (8) is arranged in another loop concave, fixing by second injection head screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010520422 CN101984272A (en) | 2010-10-26 | 2010-10-26 | Heavy-duty ball screw assembly of continuous lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010520422 CN101984272A (en) | 2010-10-26 | 2010-10-26 | Heavy-duty ball screw assembly of continuous lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101984272A true CN101984272A (en) | 2011-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010520422 Pending CN101984272A (en) | 2010-10-26 | 2010-10-26 | Heavy-duty ball screw assembly of continuous lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101984272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056621A (en) * | 2019-04-08 | 2019-07-26 | 北京聚才德荣科技发展有限责任公司 | A kind of central air-conditioning installation furred ceiling lead screw |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082209A (en) * | 1996-09-30 | 2000-07-04 | Nsk Ltd. | Ball screw |
| JP2000320637A (en) * | 1999-05-10 | 2000-11-24 | Nsk Ltd | Ball screw |
| CN200993208Y (en) * | 2006-12-18 | 2007-12-19 | 陕西汉江机床有限公司 | Symmetrical ball screw paier |
| CN201125995Y (en) * | 2007-03-15 | 2008-10-01 | 启东润泽机床附件有限公司 | Ball guide-screw pair dustproof sealed ring |
| CN201190771Y (en) * | 2008-05-01 | 2009-02-04 | 山东博特精工股份有限公司 | High speed heavy-load ball screw |
| CN201827319U (en) * | 2010-10-26 | 2011-05-11 | 浙江大学 | Continuously lubricant heavy load ball screw assembly |
-
2010
- 2010-10-26 CN CN 201010520422 patent/CN101984272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082209A (en) * | 1996-09-30 | 2000-07-04 | Nsk Ltd. | Ball screw |
| JP2000320637A (en) * | 1999-05-10 | 2000-11-24 | Nsk Ltd | Ball screw |
| CN200993208Y (en) * | 2006-12-18 | 2007-12-19 | 陕西汉江机床有限公司 | Symmetrical ball screw paier |
| CN201125995Y (en) * | 2007-03-15 | 2008-10-01 | 启东润泽机床附件有限公司 | Ball guide-screw pair dustproof sealed ring |
| CN201190771Y (en) * | 2008-05-01 | 2009-02-04 | 山东博特精工股份有限公司 | High speed heavy-load ball screw |
| CN201827319U (en) * | 2010-10-26 | 2011-05-11 | 浙江大学 | Continuously lubricant heavy load ball screw assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056621A (en) * | 2019-04-08 | 2019-07-26 | 北京聚才德荣科技发展有限责任公司 | A kind of central air-conditioning installation furred ceiling lead screw |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110309 |