CN103047384A - Dustproof assembly of ball screw - Google Patents
Dustproof assembly of ball screw Download PDFInfo
- Publication number
- CN103047384A CN103047384A CN2011103102766A CN201110310276A CN103047384A CN 103047384 A CN103047384 A CN 103047384A CN 2011103102766 A CN2011103102766 A CN 2011103102766A CN 201110310276 A CN201110310276 A CN 201110310276A CN 103047384 A CN103047384 A CN 103047384A
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- CN
- China
- Prior art keywords
- preventing component
- dust preventing
- screw thread
- ball screw
- dustproof
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- 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.)
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Abstract
A dustproof assembly of a ball screw is arranged on the ball screw and is provided with a through hole. A dustproof lip portion matched with a first threaded groove protrudes at the inner edge of the through hole. The dustproof lip portion is provided with an axial first end and an axial second end which respectively form a first dustproof surface and a second dustproof surface, the first dustproof surface and a second dustproof surface are reversely arranged, and a first gap is arranged between the first dustproof surface and the first threaded groove and is in gradual shrinking distribution from the first end to the second end. A second gap is arranged between the second dustproof surface and the first threaded groove and is in gradual expanding distribution from the first end to the second end. Therefore, the dustproof assembly of the ball screw is simple in structure and easy to manufacture, and can improve the assembling efficiency of screws and nuts.
Description
Technical field
The present invention is relevant with dust preventing component, refers to especially a kind of dust preventing component of ball screw.
Background technique
Press, traditional ball screw has a screw rod and a nut.This screw rod outer surface has one first screw thread ditch.This nut internal surface then has the one second screw thread ditch corresponding with this first screw thread ditch, and this second screw thread ditch and the common thread path that forms of this first screw thread ditch.The plural number rolling element is restricted in this thread path and rolls.By between those rolling elements and this screw rod and this nut in a mode that contacts, reduce the frictional force between this screw rod and this nut, move on this screw rod in order to this nut.
Because ball screw is in various machine during driver part, often run into and stick together the situations such as foreign matter or dust on this screw rod, if do not removed, but allow this nut and those rolling elements directly together with foreign matter or relatively this motion of dust, shortened the working life of this screw rod, this nut and those rolling elements, and also very not smooth and easy in running.To this, can in time be used for getting rid of foreign matter and the dust of position on screw rod just like U.S. US5722294 number and US6931955 patent, keep the start of ball screw smooth and easy and working life.
Only, above-mentioned U.S. US5722294 patent is that scraping brushing device is divided into two sections, and in advance moulding is in conjunction with keyway and the key section of usefulness, and this kind scraping brushing device complex process and assembling convenience and validity enjoy test.Moreover be U.S. US6931955 patent, it uses the scraping brushing device of multistage and different scraping brushing devices to adopt each other different materials to make, and this also produces suitable difficulty on making and assembling.
Summary of the invention
Main purpose of the present invention is to provide a kind of dust preventing component of ball screw, and it is making simple and the assembling facility, therefore can increase the packaging efficiency of threaded spindle cap nut.
For achieving the above object, the dust preventing component of ball screw provided by the invention, be used for a ball screw, this ball screw has a screw rod and a nut, this screw rod outer surface has one first screw thread ditch, and this nut internal surface has the one second screw thread ditch corresponding with this first screw thread ditch, and this second screw thread ditch and the common thread path that forms of this first screw thread ditch, the plural number rolling element is restricted in this thread path and rolls; This dust preventing component is located on this nut, it is characterized in that:
This dust preventing component has a through hole that wears for this screw rod, and cooperate this first screw thread ditch to give prominence to a dirt lip in this through hole inner edge, this dirt lip has in an axial first end and one second end, this first end and this second end form one first dustproof face and the one second dustproof face of opposing setting separately from each other, have one first gap between this first dustproof face and this first screw thread ditch, and this first gap is tapered profile by this first end to the second end; Have one second gap between this second dustproof face and this first screw thread ditch, and this second gap is the flaring distribution by this first end to the second end.
The dust preventing component of described ball screw, wherein: this nut forms location recess and an a pair of tooth recess at end face; This dust preventing component then cooperates respectively this location indentations and this that tooth recess is formed location protuberance and an a pair of tooth protuberance in its outer rim, by the combination of this positioning convex portion and this location indentations and this tooth protuberance and this are made up the tooth recess, limit the relative position of this dust preventing component and this nut.
The dust preventing component of described ball screw, wherein: this dust preventing component is to make with ejection formation.
The dust preventing component of described ball screw, wherein: this dust preventing component is to turn to penetrate the moulding making.
The dust preventing component of described ball screw, wherein: be provided with a packing ring between this dust preventing component and this nut.
The dust preventing component of described ball screw, wherein: the end face of this dustproof accessory has a teething point, in order to contrast the first screw thread ditch of this screw rod.
Dust preventing component structure of the present invention is simple makes simply, and because this first gap system between this first dustproof face and this first screw thread ditch is tapered profile, therefore have higher assembling nargin in assembling, thus, dust preventing component provided by the present invention is made simple and the assembling facility, can increase the packaging efficiency of threaded spindle cap nut.
Description of drawings
Fig. 1 is the exploded view of preferred embodiment of the present invention;
Fig. 2 is the sectional view of preferred embodiment of the present invention;
Fig. 3 is the dust preventing component plan view of preferred embodiment of the present invention;
Fig. 4 is the dust preventing component stereogram of preferred embodiment of the present invention;
Fig. 5 is the dust preventing component sectional view of preferred embodiment of the present invention;
Fig. 6 is the phantom of preferred embodiment of the present invention, shows screw rod and dust preventing component;
Fig. 7 is the partial enlarged drawing among Fig. 6, shows screw rod and dust preventing component
Fig. 8 is the phantom of preferred embodiment of the present invention, shows screw rod and dust preventing component; And
Fig. 9 is the partial enlarged drawing among Fig. 8, shows screw rod and dust preventing component.
Primary clustering symbol description in the accompanying drawing:
10 dust preventing component;
11 through holes;
12 dirt lip; 121 first ends; 122 second ends; 123 first dustproof faces; 124 second dustproof faces;
13 positioning convex portion;
14 pairs of tooth protuberances;
15 packing rings;
16 teething points;
80 ball screws; 81 screw rods; 811 first screw thread ditches;
82 nuts; 821 second screw thread ditches;
83 thread path;
84 rolling elements;
852 location indentations; 853 pairs of tooth recesses;
D1 the first gap; D2 the second gap.
Embodiment
The dust preventing component of a kind of ball screw provided by the present invention, for a ball screw, this ball screw has a screw rod and a nut, this screw rod, outer surface have one first screw thread ditch, this nut, internal surface has the one second screw thread ditch corresponding with this first screw thread ditch, and the common thread path that forms of this second screw thread ditch and this first screw thread ditch, plural rolling element is restricted in this thread path and rolls; This dust preventing component, to be located on this nut, it is characterized in that: this dust preventing component has a through hole that wears for this screw rod, and cooperate this first screw thread ditch to give prominence to a dirt lip in this through hole inner edge, this dirt lip has in an axial first end and one second end, this first end and this second end form one first dustproof face and the one second dustproof face of opposing setting separately from each other, have one first gap between this first dustproof face and this first screw thread ditch, and this first gap is tapered profile by this first end to the second end system; Have one second gap between this second dustproof face and this first screw thread ditch, and this second gap is the flaring distribution by this first end to the second end system.
In order to describe technical characterstic of the present invention place in detail, hereby lift a following preferred embodiment and cooperate description of drawings such as rear, wherein:
Such as Fig. 1-shown in Figure 7, the dust preventing component 10 of a kind of ball screw that preferred embodiment of the present invention provides, for a ball screw 80, this ball screw 80 has a screw rod 81 and a nut 82, these screw rod 81 outer surfaces have one first screw thread ditch 811, these nut 82 internal surfaces have the one second screw thread ditch 821 corresponding with this first screw thread ditch 811, and this second screw thread ditch 821 and these the first screw thread ditch 811 common thread path 83 that form, plural rolling element 84 is restricted in this thread path 83 and rolls.
This dust preventing component 10, to be located on this nut 82, it is characterized in that: this dust preventing component 10 has a through hole 11 that wears for this screw rod 81, and cooperate this first screw thread ditch 811 outstanding dirt lip 12 in these through hole 11 inner edges, this dirt lip 12 has in an axial first end 121 and one second end 122, this first end 121 and this second end 122 form one first dustproof face 123 and the one second dustproof face 124 of opposing setting separately from each other, have one first clearance D 1 between this first dustproof face 123 and this first screw thread ditch 811, and this first clearance D 1 is tapered profile by these first end 121 to second ends 122; Have one second clearance D 2 between this second dustproof face 124 and this first screw thread ditch 811, and this second clearance D 2 is the flaring distribution by these first end 121 to second ends 122.
It is worth mentioning that, in this preferred embodiment, this nut 82 forms location recess 852 and an a pair of tooth recess 853 at end face.10 of this dust preventing component cooperate respectively this location indentations 852 and this that tooth recess 853 is formed location protuberance 13 and an a pair of tooth protuberance 14 in its outer rim, by this positioning convex portion 13 and these location indentations 852 combinations and this tooth protuberance 14 and this are made up tooth recess 853, limit the relative position of this dust preventing component 10 and this nut 82, on this dust preventing component 10 of assembling, only need 13 ones of this convexes and tooth protuberance 14 is located at respectively this location indentations 852 for this and this is in the tooth recess 853, these dust preventing component 10 devices can be finished, need not aim at separately and correct.
About the production method of this dust preventing component 10, then can this dust preventing component 10 be penetrated the moulding making with ejection formation making or this dust preventing component to turn according to user's selection.
For adjusting the position between this dust preventing component 10 and the nut 85, be provided with a packing ring 15 between this dust preventing component 10 and this nut 85, adjust position between this dust preventing component 10 and the nut 85 by the thickness that changes this packing ring 15.
What also should be specified is, in this preferred embodiment, if predict the teething position of the first screw thread ditch 811 in this through hole 11 of this screw rod 81, on this this dust preventing component 10, also can allow the end face of this dustproof accessory 10 have teething point 16, in order to contrast the first screw thread ditch 811 of this screw rod 81.
Thus, these dust preventing component 10 structures are simple makes simply, and because this first clearance D 1 between this first dustproof face 123 and this first screw thread ditch 811 is tapered profile, therefore have higher assembling nargin and ease of assembly in assembling, thus, dust preventing component 10 provided by the present invention is made simple and the assembling facility, can increase the packaging efficiency of threaded spindle cap nut.
Claims (6)
1. the dust preventing component of a ball screw, be used for a ball screw, this ball screw has a screw rod and a nut, this screw rod outer surface has one first screw thread ditch, this nut internal surface has the one second screw thread ditch corresponding with this first screw thread ditch, and the common thread path that forms of this second screw thread ditch and this first screw thread ditch, plural rolling element is restricted in this thread path and rolls; This dust preventing component is located on this nut, it is characterized in that:
This dust preventing component has a through hole that wears for this screw rod, and cooperate this first screw thread ditch to give prominence to a dirt lip in this through hole inner edge, this dirt lip has in an axial first end and one second end, this first end and this second end form one first dustproof face and the one second dustproof face of opposing setting separately from each other, have one first gap between this first dustproof face and this first screw thread ditch, and this first gap is tapered profile by this first end to the second end; Have one second gap between this second dustproof face and this first screw thread ditch, and this second gap is the flaring distribution by this first end to the second end.
2. the dust preventing component of ball screw according to claim 1, wherein: this nut forms location recess and an a pair of tooth recess at end face; This dust preventing component then cooperates respectively this location indentations and this that tooth recess is formed location protuberance and an a pair of tooth protuberance in its outer rim, by the combination of this positioning convex portion and this location indentations and this tooth protuberance and this are made up the tooth recess, limit the relative position of this dust preventing component and this nut.
3. the dust preventing component of ball screw according to claim 1, wherein: this dust preventing component is to make with ejection formation.
4. the dust preventing component of ball screw according to claim 1, wherein: this dust preventing component is to turn to penetrate moulding and make.
5. the dust preventing component of ball screw according to claim 1, wherein: be provided with a packing ring between this dust preventing component and this nut.
6. the dust preventing component of ball screw according to claim 1, wherein: the end face of this dustproof accessory has a teething point, in order to contrast the first screw thread ditch of this screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110310276.6A CN103047384B (en) | 2011-10-14 | 2011-10-14 | Dustproof assembly of ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110310276.6A CN103047384B (en) | 2011-10-14 | 2011-10-14 | Dustproof assembly of ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103047384A true CN103047384A (en) | 2013-04-17 |
| CN103047384B CN103047384B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110310276.6A Active CN103047384B (en) | 2011-10-14 | 2011-10-14 | Dustproof assembly of ball screw |
Country Status (1)
| Country | Link |
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| CN (1) | CN103047384B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268463A (en) * | 2017-07-18 | 2019-01-25 | 上银科技股份有限公司 | Has the ball screw of dustproof element |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025223A (en) * | 2006-02-24 | 2007-08-29 | 上银科技股份有限公司 | Positioning dust-proof mechanism of ball screw-bar return-flow assembly |
| CN101230903A (en) * | 2007-01-23 | 2008-07-30 | 上银科技股份有限公司 | Ball screw anti-dust device |
| US20080196523A1 (en) * | 2007-02-16 | 2008-08-21 | Chia-Min Liu | Dustproof Device for a Ball Screw |
| JP2010156390A (en) * | 2008-12-26 | 2010-07-15 | Shangyin Sci & Technol Co Ltd | Ball screw |
| US20100288063A1 (en) * | 2009-05-14 | 2010-11-18 | Hiwin Technologies Corp. | Dustproof device for ball screw apparatus |
-
2011
- 2011-10-14 CN CN201110310276.6A patent/CN103047384B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025223A (en) * | 2006-02-24 | 2007-08-29 | 上银科技股份有限公司 | Positioning dust-proof mechanism of ball screw-bar return-flow assembly |
| CN101230903A (en) * | 2007-01-23 | 2008-07-30 | 上银科技股份有限公司 | Ball screw anti-dust device |
| US20080196523A1 (en) * | 2007-02-16 | 2008-08-21 | Chia-Min Liu | Dustproof Device for a Ball Screw |
| JP2010156390A (en) * | 2008-12-26 | 2010-07-15 | Shangyin Sci & Technol Co Ltd | Ball screw |
| US20100288063A1 (en) * | 2009-05-14 | 2010-11-18 | Hiwin Technologies Corp. | Dustproof device for ball screw apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268463A (en) * | 2017-07-18 | 2019-01-25 | 上银科技股份有限公司 | Has the ball screw of dustproof element |
| CN109268463B (en) * | 2017-07-18 | 2020-07-17 | 上银科技股份有限公司 | Ball screw with dustproof element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103047384B (en) | 2015-07-15 |
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