CN100582527C - Ball screw anti-dust device - Google Patents
Ball screw anti-dust device Download PDFInfo
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- CN100582527C CN100582527C CN200710007348A CN200710007348A CN100582527C CN 100582527 C CN100582527 C CN 100582527C CN 200710007348 A CN200710007348 A CN 200710007348A CN 200710007348 A CN200710007348 A CN 200710007348A CN 100582527 C CN100582527 C CN 100582527C
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- oil
- scraping
- scrapping sheet
- brushing device
- screw
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Abstract
The invention discloses a ball screw dustproof device which is assembled on the end face of a screw cap, and the invention orderly comprises an absorbing part, an oil scraper slice and a wiping device. The absorbing part relates to materials which can absorb liquid, and the oil scraper slice uses an oil scraper part to contact with the surface of the screw. The wiping device is provided with a tooth wiping part which is correspondingly meshed with the surface of the screw, and in addition, protuberaces are arranged between the wiping device and the oil scraper slice to cause a radial through hole to be formed by the segmentation between the wiping device and the oil scraper slice. The invention has good resistance and exclusion effects for powdered scraps and liquid, prevents the lubricating liquid from running off from the screw cap, keeps the lubricating liquid and absorbs micro cutting liquid which passes through the oil scraper slice.
Description
Technical field
The present invention relates to a kind of ball screw related accessory, be meant a kind of ball screw anti-dust device especially.
Background technique
Ball screw now is more and more in the application of industrial aspect, except high precision effect as the linear feeding transmission, have also that the frictional wear rate is little, energy conversion rate is high, noise is little and advantage such as high rigidity is not fragile, therefore, ball screw is for significance such as various commercial Application facility is also ineffable now.
Present ball screw design is for the ball between screw rod and the nut can constantly be circulated, eliminate stress, at nut two ends dust guard miscellaneous; And different designs all has its defective to exist, so how research and development improve out the emphasis that more competitive product becomes present industry naturally at dust guard.
Be generally everybody's use and the cognitive various common structure of dust guard shown in the 1st, 2,3 and 4 figure in the past, saw also following explanation:
Fig. 1 is a U.S. Pat 6,578, and No. 852, this is commonly used for a slice is installed in sheet type scraping brushing device 10 in the nut, is provided with the soft protuberance 11 of the screw thread that reclines at scraping brushing device 10 inner edges, to reach the effect of scraping the removal of impurities bits; It is poor that but this problem commonly used appears at for the barriering effect of iron filings, and soft protuberance 11 is easy to be caused sheet type scraping brushing device 10 commonly used to be easy to lose dustproof effect by the high iron filings destruction damage of hardness.
Fig. 2 is a U.S. Pat 2,793, No. 538, be a kind of cartridge type scraping brushing device 12 with grooving 121, and its spiral shell can utilize grooving 121 to release assorted bits when being contained on the screw rod 13; The problem that this kind is commonly used is that it is fit to get rid of more, bigger assorted bits, but relatively poor for the barriering effect of less assorted bits or liquid.
Shown in Fig. 3,4 is U.S. Pat 6,732, No. 599, it is a kind of scraping brushing device of multidisc, it includes scraping blade 15, a band 16 of scraping brush holder 14, several annular pivots dresses, several scraping blades 15 that utilize band 16 will scrape on the brush holder 14 are tightened screw rod, and strike off the work of less assorted bits earlier, and significantly problem is the phenomenon that prevents that not liquid from entering.
More than three kinds of common technologies not only have the problem of itself, and all can produce as following common problem:
Scraping brushing device is in order to prevent foreign body intrusion, but in order to compensate machining error and to avoid scraping brushing device and the problem of screw rod excessive interference, all can there be a certain size gap in scraping brushing device that manufacturing is finished and screw rod, so, various scraping brushing devices never find the way of elimination on the market for less dust or liquid, so when ball screw is applied to the accurate man-hour that adds, not only can't stop little iron filings to enter in the nut, cutting fluid also can constantly be invaded in the nut gradually, influences the working life of ball screw; Though aforementioned several are scraping brushing devices of improveing,, strengthen the chip removal effect though can carry out the gap adjustment, for preventing that cutting fluid from entering in the nut still to no effect for iron filings.
In order effectively to solve aforementioned relevant issues, research and development technology and experience that the present inventor was accumulated in the ball screw field based on the past, from preventing that liquid from invading, the angle of chip removal is easily studied, develop finally a kind of brand-new ball screw anti-dust device.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of ball screw anti-dust device, it can all have the good effect that stops and get rid of to break flour, liquid, and can prevent that Lubricants from absorbing the cutting fluid of trace by oil-scrapping sheet from nut internal drain, maintenance Lubricants.
For solving the problems of the technologies described above, ball screw anti-dust device of the present invention comprises successively: an oil-scrapping sheet, its first end face fits on the described nut end face, and to should screw surface being provided with frizing portion, this frizing portion contacts with screw surface, and oil-scrapping sheet is provided with at least one projection on second end face; And a scraping brushing device, being combined on second end face of this oil-scrapping sheet, this scraping brushing device system is provided with the corresponding portion of brushing teeth of scraping that is engaged in this screw surface, and scraping brushing device replaces by the projection of this oil-scrapping sheet, forms at least one radial direction through hole and allow separate between scraping brushing device and oil-scrapping sheet.
Adopt said structure, ball screw anti-dust device all has the good effect that stops and get rid of to break flour, liquid, and can prevent that Lubricants is from nut internal drain, maintenance Lubricants and the absorption trace ball screw anti-dust device by oil-scrapping sheet.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:
Fig. 1 uses US6 always, 578,852 case assembly sectional views;
Fig. 2 is US2 commonly used, 793,538 case assembly schematic representation;
Fig. 3 is US6 commonly used, 732,599 case assembly plane exploded views;
Fig. 4 is US6 commonly used, and 732,599 case components side are to exploded view;
Fig. 5 is the three-dimensional exploded view of first embodiment of the invention;
Fig. 6 is the assembled sectional view of first embodiment of the invention;
Fig. 7 is the oil-scrapping sheet stereogram of first embodiment of the invention;
Fig. 8 is the three-dimensional exploded view of second embodiment of the invention;
Fig. 9 is the assembled sectional view of second embodiment of the invention;
Figure 10 is another embodiment's schematic perspective views of wiper product of the present invention.
Embodiment
First embodiment of the invention please refer to Fig. 5 to Fig. 7, and ball screw anti-dust device of the present invention is assembled on the containing groove 21 of nut 20 end faces, once comprises an absorbing component 30, an oil-scrapping sheet 40, a scraping brushing device 50 and a cover plate 60 from inside to outside; Its structure characteristic is:
This absorbing component 30, material with fluid-absorbing forms, for example: the plastics of nonwoven fabric, sponge, felt or porous, the centre of absorbing component 30 offers the suction accepting hole 301 that passes through for screw rod, and absorbing component 30 contacts with screw surface with a protuberance 31, and identical maybe this suction accepting hole 301 with the screw rod cross section of this suction accepting hole 301 is slightly less than the screw rod cross section;
This oil-scrapping sheet 40, be the rubber material and the outside that is assemblied in this absorbing component 30, offer the frizing that passes through for screw rod in the middle of this oil-scrapping sheet 40 and hold hole 401, its mutually should screw surface first end face be provided with the frizing portion 41 of soft protrusion, this frizing portion 41 contacts with screw surface, and oil-scrapping sheet 40 is three projections 42 of second end face making in the outside, and several projections 42 on these oil-scrapping sheet 40 surfaces are configured to equidistantly center on this screw rod axle center, and the thickness of oil-scrapping sheet 40 is less than the thickness of this absorbing component 30 in addition;
This scraping brushing device 50, be assemblied in the outside of this oil-scrapping sheet 40, offer the wiper that passes through for screw rod in the middle of this scraping brushing device 50 and hold hole 501, and scraping brushing device 50 systems are provided with the corresponding portion of brushing teeth 51 of scraping that is engaged in this screw surface, and the inner side surface of scraping brushing device 50 is evenly replaced by the projection 42 of this oil-scrapping sheet 40, form three radial direction through hole 52 and allow scraping brushing device 50 and 40 of oil-scrapping sheets separate, in addition offer several groovings 53 towards the outside for chip removal scraping the portion of brushing teeth 51 places, this scraping brushing device 50 offers a ring-like grooving 54 in corresponding each grooving 53 outer rim place, ring-like grooving 54 is nested with a spring part 55, and this spring part 55 forces the portion of brushing teeth 51 of scraping of scraping brushing device 50 to be close to screw surface more;
This cover plate 60, for metal material and be set in outside aforementioned absorbing component 30, oil-scrapping sheet 40 and the scraping brushing device 50, and cover plate 60 cooperates nut 20 that the three is fixed, on this cover plate 60, offer radially slotted eye 61 in addition, radially slotted eye 61 mutually should scraping brushing device 50 and the radial direction through hole 52 of 40 of oil-scrapping sheets for this, flows out for liquid; The above is the correlation position and the general introduction thereof of each associated component of the present invention.
The second embodiment of the present invention, please refer to Fig. 8 and Fig. 9, second embodiment assembles an absorbing component 30, an oil-scrapping sheet 40, a scraping brushing device 50, a cover plate 60 and a spring part 55 successively on the containing groove 21 of nut 20 end faces, the inner side surface that first embodiment's projection 42 design transformations is fabricated into scraping brushing device 50 becomes projection 56, this design can be produced some radial direction through hole 52 at scraping brushing device 50 and 40 of oil-scrapping sheets equally, therefore, second embodiment has constructed feature, states clearly in the lump at this.
Other please refer to Figure 10, and scraping brushing device 50 of the present invention can be embodiment's a closed annular design as described above, also can be as shown in figure 10, and scraping brushing device 50 offers the C type open design of opening port 57, and this uses design and still belongs within the protection domain of the present invention.
In order to clearly demonstrate implementation feature of the present invention, more progressive part of the present invention and practical way commonly used are described below:
The present invention is after assembling an absorbing component 30, an oil-scrapping sheet 40, scraping brushing device 50, a cover plate 60 and a spring part 55 successively on the nut 20, because this scraping brushing device 50 is offered several groovings 53 for chip removal scraping the portion of brushing teeth 51 places towards the outside, and this spring part 55 forces the portion of brushing teeth 51 of scraping of scraping brushing device 50 to be close to screw surface more, so the present invention has the good effect that stops and get rid of to less, bigger iron filings.
The present invention has the soft protrusion frizing portion 41 of oil-scrapping sheet 40 again, inner edge protrudes the effectively turnover of liquid barrier of rubber material of frizing portion 41, not only can stop cutting fluid to enter in the nut, and can make cutting fluid flow out dust guard by the radial direction through hole 52 of 40 of this scraping brushing device 50 and oil-scrapping sheets, radially slotted eye 61 on the cover plate 60, can not be deposited in the inside; This oil-scrapping sheet 40 can prevent that Lubricants is from nut 20 internal drains in addition.
At last, the present invention has this absorbing component 30, utilizes the material of fluid-absorbing to form, and for example: the plastics of nonwoven fabric, sponge, felt or porous can keep Lubricants and absorb the cutting fluid of trace by oil-scrapping sheet.
What deserves to be mentioned is that because the groove on oil-scrapping sheet and the nut is generally loose fit, from then on flow in the slit for fear of liquid, the present invention can organize separately in the oil-scrapping sheet outer rim and adorn a plastic sheet, and is not shown in the figures, avoid liquid to flow in the oil-scrapping sheet.
In sum, the scraping brushing device purposes of first layer of the present invention mainly is to be to stop and get rid of the iron filings that produced when cutting that second layer oil-scrapping sheet then is to stop that cutting fluid enters nut, and the 3rd layer of absorbing component then is the cutting fluid that absorbs by the second layer; In first and second layer because the radial direction through hole that has projection to form, so both can not stick together fully, cooperate the radially slotted eye on the cover plate again, form one and effectively get rid of passage, not only cutting fluid can be discharged, avoid it to be deposited in the inside, and because oil-scrapping sheet is higher than the nut end face, take place from the situation that cooperates the radial direction through hole adverse current on the cover plate so also do not have cutting fluid, last other is fixed to the three on the nut with a metal cover board.
Claims (9)
1, a kind of ball screw anti-dust device is assembled in the nut end, it is characterized in that: comprise successively:
One oil-scrapping sheet, its first end face fits on the described nut end face, and to should screw surface being provided with frizing portion, this frizing portion contacts with screw surface, and oil-scrapping sheet is provided with at least one projection on second end face; And
One scraping brushing device is combined on second end face of this oil-scrapping sheet, and this scraping brushing device system is provided with the corresponding portion of brushing teeth of scraping that is engaged in this screw surface, and scraping brushing device replaces by the projection of this oil-scrapping sheet, forms at least one radial direction through hole and allow separate between scraping brushing device and oil-scrapping sheet.
2, ball screw anti-dust device as claimed in claim 1 is characterized in that: be provided with an absorbing component in addition between ball screw anti-dust device and nut, absorbing component is formed by the material that absorbs liquid, and absorbing component contacts with screw surface; Offer the suction accepting hole that passes through for screw rod in the middle of this absorbing component, identical maybe this suction accepting hole with the screw rod cross section of this suction accepting hole is slightly less than the screw rod cross section, and the thickness of absorbing component is greater than this oil-scrapping sheet.
3, ball screw anti-dust device as claimed in claim 1, it is characterized in that: offer wiper appearance hole in the middle of this scraping brushing device and pass through for screw rod, and scrape the portion of brushing teeth and offer several groovings towards the outside for chip removal, each grooving outer rim of this scraping brushing device offers ring-like grooving, and ring-like grooving is nested with a spring part that screw surface is close to by the portion of brushing teeth of scraping that forces scraping brushing device.
4, ball screw anti-dust device as claimed in claim 2 is characterized in that: be provided with one absorbing component, oil-scrapping sheet and scraping brushing device three be fixed to cover plate on the nut, and offer the radially slotted eye that flows out for liquid on this cover plate.
5, ball screw anti-dust device as claimed in claim 1 is characterized in that: a plurality of projections on this oil-scrapping sheet second end face are configured to equidistantly center on the axle center of this screw rod.
6, a kind of ball screw anti-dust device is assembled in the nut end, it is characterized in that: comprise successively:
One oil-scrapping sheet, it should screw surface be provided with frizing portion mutually, and this frizing portion contacts with screw surface;
One scraping brushing device, be assemblied in the opposite side of this oil-scrapping sheet, this scraping brushing device is provided with the corresponding portion of brushing teeth of scraping that is engaged in this screw surface, and the corresponding oil-scrapping sheet of scraping brushing device is provided with at least one projection in inner side surface, cause this oil-scrapping sheet to be subjected to projection and replace, form at least one radial direction through hole and allow separate between scraping brushing device and oil-scrapping sheet.
7, ball screw anti-dust device as claimed in claim 6 is characterized in that: be provided with an absorbing component in addition between ball screw anti-dust device and nut, absorbing component adopts the material that absorbs liquid to form, and absorbing component contacts with screw surface; Be provided with the suction accepting hole that passes through for screw rod in the middle of this absorbing component, identical maybe this suction accepting hole with the screw rod cross section of this suction accepting hole is slightly less than the screw rod cross section, and the thickness of absorbing component is greater than this oil-scrapping sheet.
8, ball screw anti-dust device as claimed in claim 6, it is characterized in that: be provided with the wiper that passes through for screw rod in the middle of this scraping brushing device and hold the hole, and scrape the portion of brushing teeth and offer several groovings towards the outside for chip removal, each grooving outer rim of this scraping brushing device offers ring-like grooving, and ring-like grooving is nested with the spring part that screw surface is close to by the portion of brushing teeth of scraping that forces scraping brushing device.
9, ball screw anti-dust device as claimed in claim 7 is characterized in that; Be provided with one absorbing component, oil-scrapping sheet and scraping brushing device three be fixed to cover plate on the nut, and offer the radially slotted eye that flows out for liquid on this cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710007348A CN100582527C (en) | 2007-01-23 | 2007-01-23 | Ball screw anti-dust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710007348A CN100582527C (en) | 2007-01-23 | 2007-01-23 | Ball screw anti-dust device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101230903A CN101230903A (en) | 2008-07-30 |
| CN100582527C true CN100582527C (en) | 2010-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710007348A Active CN100582527C (en) | 2007-01-23 | 2007-01-23 | Ball screw anti-dust device |
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| Country | Link |
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| CN (1) | CN100582527C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047384B (en) * | 2011-10-14 | 2015-07-15 | 上银科技股份有限公司 | Dustproof assembly of ball screw |
| CN105090408B (en) * | 2014-05-08 | 2017-11-07 | 宁夏巨能机器人系统有限公司 | A kind of mechanical arm lubricating arrangement |
| CN106151430A (en) * | 2015-03-31 | 2016-11-23 | 全球传动科技股份有限公司 | Ball screw device and bearing holder (housing, cover) assembly thereof |
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2007
- 2007-01-23 CN CN200710007348A patent/CN100582527C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101230903A (en) | 2008-07-30 |
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