CN104791445A - Ball screw with scraping and brushing devices - Google Patents
Ball screw with scraping and brushing devices Download PDFInfo
- Publication number
- CN104791445A CN104791445A CN201410021743.7A CN201410021743A CN104791445A CN 104791445 A CN104791445 A CN 104791445A CN 201410021743 A CN201410021743 A CN 201410021743A CN 104791445 A CN104791445 A CN 104791445A
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- CN
- China
- Prior art keywords
- screw
- brushing device
- scraping brushing
- scraping
- groove
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a ball screw with scraping and brushing devices. The ball screw comprises a screw body, a screw cap and the two scraping and brushing devices. Spiral rolling grooves are formed in the outer edge face of the screw body, and the screw cap is provided with a penetrating hole allowing the screw body to penetrate; the two end faces, in the axial direction, of the screw cap are each provided with an annular alignment groove, and the two ends, in the axial direction, of the penetrating hole are each provided with a mounting groove; one end face, in the axial direction, of each scraping and brushing device is provided with a groove in a concave manner, and the two sides of each groove are defined as a body portion and a locking portion respectively; the body portions are contained in the mounting grooves, and the locking portions are contained in the alignment grooves; the body portions are provided with through holes allowing the screw body to penetrate, and lip portions protruding and extending towards the rolling grooves are arranged on the inner edge faces of the through holes; and the screw cap is provided with a fixed part, and one end of the fixed part abuts against the locking portions. By means of the structure, the fixing mode, caused by pseudo pre-pressing, of the scraping and brushing devices can be prevented.
Description
Technical field
The present invention is relevant with the scraping brushing device of ball screw, refers in particular to a kind of scraping brushing device means of fixation that can prevent false precompressed from producing.
Background technique
Ball screw is the rolling utilizing ball, come drive screw and nut relative displacement, and there is low friction and high-accuracy advantage, if having any dust or break flour to enter, capital impacts the effect of ball screw and precision, and therefore dust prevention just becomes very important, for this reason, develop many technology dust-proof about ball screw on the market, wherein one as shown in Figure 1, one scraping brushing device B is in the form of a ring set in one end of a nut A, this nut A offers two relative screw A1 in radial direction, and lock with a screw A2 respectively and pass two this screw A1, two this screw A2 clamp this scraping brushing device B by both sides again, this scraping brushing device B is made to be fixed in this nut A, so the lip B1 of this scraping brushing device B just can be contained in the sliding channel C1 of the screw rod C of this ball screw, when this ball screw action, the lip B1 of this scraping brushing device B can produce along with the rotation of this screw rod C the function striking off foreign matter in this sliding channel C1, in addition, can prevent dust or break flour from entering this sliding channel C1, under allowing this ball screw remain on clean state, and can action accurately.
But after reality uses, find that this kind of scraping brushing device B still has following number of drawbacks: one, this scraping brushing device B is when installing, but should remain on extremely close to the position do not contacted with this screw rod C, be only optimal state, but sealed power and the degree of depth are quite difficult to be controlled, if the degree of depth that two this screw A2 lock this screw A1 is too dark, this scraping brushing device B can be oppressed by both sides, the lip B1 of this scraping brushing device B is made to oppress the sliding channel C1 of this screw rod C and produce false precompressed (note: false precompressed refers to not to the screw rod of ball screw, the adjustment of the intercropping precompression of nut and ball, but because this lip B1 oppresses the active force of this sliding channel C1, ball screw has precompression to allow user think by mistake, but this precompression is temporary, because this lip B1 is as after wearing away with sliding channel C1, this precompression will disappear and then draw the precision of ringing equipment operation), when this screw rod C rotates, this lip B1 just can not stop friction in this sliding channel C1, the material of this scraping brushing device B is the material that the hardness such as plastics are less than metal mostly, do not stopping under the state rubbed, this lip B1 just can produce thermal distortion by Yin Gaore, or be grated generation dust, cause the damage of this scraping brushing device B or dust affects the problems such as operation precision.
If two, to lock the degree of depth of this screw A1 too shallow for two this screw A2, this scraping brushing device B easily produces again the problem such as to drop that gets loose; Time three, owing to assembling this scraping brushing device B, first must calibrate this scraping brushing device B, in the sliding channel C1 making the lip B1 of this scraping brushing device B be contained in this screw rod C and between keep a gap, adjust the degree of depth that two this screw A2 lock afterwards again, contact to avoid producing between this lip B1 with this sliding channel C1, therefore when assembling, often necessary repeating test several times could be successful, relatively also elongated the time that this scraping brushing device of assembling B spends, and causes extra cost waste.Therefore this scraping brushing device B still also exists disappearance urgently to be resolved hurrily, and the present inventor is just improved for this.
Summary of the invention
The object of the present invention is to provide a kind of ball screw with scraping brushing device, lip and sliding channel contraposition can be kept a gap by this scraping brushing device easily, and screw can be avoided when locking scraping brushing device, produce false precompressed because locking power is too large.
In order to reach above-mentioned purpose, solution of the present invention is:
Have a ball screw for scraping brushing device, it comprises: a screw rod, and it extends to the structure of strip towards a direction, and defining this bearing of trend is axle direction, and the outer edge surface of this screw rod is provided with spiral helicine sliding channel; One nut, it has a perforation worn for this screw rod, the inner edge surface of this perforation is provided with the rolling groove of this sliding channel relatively, this sliding channel and rolling groove form a load path, the axial both ends of the surface of this nut are respectively equipped with a ring-type alignment grooves, and the axial two ends of this perforation are respectively equipped with a mounting groove; Multiple rolling element, it is located at this load path; Two scraping brushing devices, this scraping brushing device is arranged with a groove in axle direction one end face, the both sides of this groove are defined as main body portion and locking part respectively, this main body portion is located in this mounting groove, this locking part is located in this alignment grooves, this main body portion has a through hole worn for this screw rod, and the inner edge surface of this through hole is provided with the lip protruded out towards this sliding channel; Wherein, this nut is provided with a fixed block, and one end of this fixed block is to being located at this locking part.
Above-mentioned fixing piece is a screw, and the outer diameter face of this nut is provided with the screw hole be communicated with this alignment grooves, and this screw hole provides this screw spiral shell to establish wherein, and the front end of this screw is to being located at this locking part.
The bottom surface of above-mentioned groove is bearing on the end face of this nut.
The gap of above-mentioned lip and sliding channel keeps a gap to arrange, and this gap optimum value is 0.01 ~ 0.04mm.
After adopting said structure, the present invention has the structural design of ball screw by coordinating between scraping brushing device with nut of scraping brushing device, make this fixed block when fixing scraping brushing device, can not directly bring pressure to bear on this main body portion, but reach the effect of fixing this scraping brushing device to being located at this locking part; In addition, bottom surface by this groove is bearing on the end face of this nut, keep a gap to allow between this lip energy and this sliding channel, reach the effect of rapid-aligning, and avoid the Contact of this lip and sliding channel and improve resistance that ball screw runs and avoid allowing this lip produce wearing away.
Accompanying drawing explanation
Fig. 1 is the sectional view that prior art has the ball screw of scraping brushing device;
Fig. 2 is the system diagram that the present invention has the ball screw of scraping brushing device;
Fig. 3 is the constitutional diagram that the present invention has the ball screw of scraping brushing device;
Fig. 4 is the sectional view that the present invention has the ball screw of scraping brushing device;
Fig. 5 is the enlarged view at Z place in Fig. 4.
Symbol description
A nut A1 screw A2 screw B scraping brushing device
B1 lip C screw rod C1 sliding channel
1 screw rod 11 sliding channel 2 nut 21 is bored a hole
211 rolling groove 212 mounting groove 22 alignment grooves 23 screw holes
24 end face 90 load path 3 scraping brushing device 31 grooves
311 bottom surface 32 main body portion 321 through hole 322 lips
33 locking part 4 rolling element G screw X-axis directions
T gap.
Embodiment
In order to explain technological scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
Referring to shown in Fig. 2 to Fig. 5, is a preferred embodiment of the present invention, and the present invention is a kind of ball screw with scraping brushing device, comprise: a screw rod 1, it extends to the structure of strip towards a direction, and defining this bearing of trend is axle direction X, and the outer edge surface of this screw rod 1 is provided with spiral helicine sliding channel 11, one nut 2, it has a perforation 21 worn for this screw rod 1, the inner edge surface of this perforation 21 is provided with the rolling groove 211 of this sliding channel 11 relatively, this sliding channel 11 forms a load path 90 with rolling groove 211, the both ends of the surface 24 of the axle direction X of this nut 2 are respectively equipped with a ring-type alignment grooves 22, and the two ends of the axle direction X of this perforation 21 are respectively equipped with a mounting groove 212, multiple rolling element 4, it is located at this load path 90, two scraping brushing devices 3, this scraping brushing device 3 is arranged with a groove 31 in axle direction X mono-end face, the both sides of this groove 31 are defined as main body portion 32 and locking part 33 respectively, this main body portion 32 is located in this mounting groove 212, this locking part 33 is located in this alignment grooves 22, this main body portion 32 has a through hole 321 worn for this screw rod 1, and the inner edge surface of this through hole 321 is provided with the lip 322 protruded out towards this sliding channel 11, the mode of this scraping brushing device 3 is fixed in the present embodiment, in the screw hole 23 that the outer diameter face processing one of this nut 2 is communicated with this alignment grooves 22, this screw hole 23 provides a screw G spiral shell to establish wherein, the front end of this screw G is to being located at this locking part 33, as shown in Figure 4, so that this scraping brushing device 3 is fixed on this nut 2, and the bottom surface 311 of this groove 31 is bearing on the end face 24 of this nut 2 after this scraping brushing device 3 installation, the lip 322 of this scraping brushing device 3 is made to keep a gap T to arrange (referring to Fig. 5) with sliding channel 11, and the specification size of ball screw is looked in this gap, optimum value is 0.01 ~ 0.04mm, except the means of fixation that the screw hole provided except the present embodiment coordinates with screw, also can fix this scraping brushing device by snap-in structure mode.
By above-mentioned scraping brushing device and the structural design coordinated between nut, when this scraping brushing device is fixed in assembling, this screw is to the locking part being located at this scraping brushing device, and the lip of this scraping brushing device establishes reeded design by this scraping brushing device, and keep a gap with the sliding channel of screw rod, the Contact of this lip and sliding channel can be avoided and improve resistance that ball screw runs and avoid allowing this lip produce wearing away.
Above-described embodiment and accompanying drawing non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (4)
1. have a ball screw for scraping brushing device, it is characterized in that, comprise: a screw rod, it extends to the structure of strip towards a direction, and defining this bearing of trend is axle direction, and the outer edge surface of this screw rod is provided with spiral helicine sliding channel; One nut, it has a perforation worn for this screw rod, the inner edge surface of this perforation is provided with the rolling groove of this sliding channel relatively, this sliding channel and rolling groove form a load path, the axial both ends of the surface of this nut are respectively equipped with a ring-type alignment grooves, and the axial two ends of this perforation are respectively equipped with a mounting groove; Multiple rolling element, it is located at this load path; Two scraping brushing devices, this scraping brushing device is arranged with a groove in axle direction one end face, the both sides of this groove are defined as main body portion and locking part respectively, this main body portion is located in this mounting groove, this locking part is located in this alignment grooves, this main body portion has a through hole worn for this screw rod, and the inner edge surface of this through hole is provided with the lip protruded out towards this sliding channel; Wherein, this nut is provided with a fixed block, and one end of this fixed block is to being located at this locking part.
2. there is the ball screw of scraping brushing device as claimed in claim 1, it is characterized in that: this fixed block is a screw, the outer diameter face of this nut is provided with the screw hole be communicated with this alignment grooves, and this screw hole provides this screw spiral shell to establish wherein, and the front end of this screw is to being located at this locking part.
3. there is the ball screw of scraping brushing device as claimed in claim 1, it is characterized in that: the bottom surface of this groove is bearing on the end face of this nut.
4. there is the ball screw of scraping brushing device as claimed in claim 1, it is characterized in that: the gap of this lip and sliding channel keeps a gap to arrange, and this gap optimum value is 0.01 ~ 0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021743.7A CN104791445B (en) | 2014-01-17 | 2014-01-17 | Ball screw with scraping brushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021743.7A CN104791445B (en) | 2014-01-17 | 2014-01-17 | Ball screw with scraping brushing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791445A true CN104791445A (en) | 2015-07-22 |
| CN104791445B CN104791445B (en) | 2018-03-13 |
Family
ID=53556493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410021743.7A Active CN104791445B (en) | 2014-01-17 | 2014-01-17 | Ball screw with scraping brushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791445B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908008A (en) * | 2021-01-19 | 2021-06-04 | 陈寿康 | Good removal traffic signal lamp of stability |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267104A (en) * | 1997-03-27 | 1998-10-09 | Ntn Corp | Seal for ball screw |
| JPH11335657A (en) * | 1998-05-28 | 1999-12-07 | Ntn Corp | Oil-containing seal device for ball screw |
| US20040149059A1 (en) * | 1996-06-17 | 2004-08-05 | Nsk Ltd. | Feed screw device |
| US20060076214A1 (en) * | 2004-10-08 | 2006-04-13 | Chuang-Pao Yang | Hooked dust scraper for ball screw unit |
| JP2007205462A (en) * | 2006-02-01 | 2007-08-16 | Nsk Ltd | Ball screw device |
| WO2013061557A1 (en) * | 2011-10-24 | 2013-05-02 | 日本精工株式会社 | Ball screw device and dust protection member extraction tool |
| CN103104668A (en) * | 2011-11-14 | 2013-05-15 | 上银科技股份有限公司 | Ball screw of scraping-brushing machine with locating structure |
-
2014
- 2014-01-17 CN CN201410021743.7A patent/CN104791445B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040149059A1 (en) * | 1996-06-17 | 2004-08-05 | Nsk Ltd. | Feed screw device |
| JPH10267104A (en) * | 1997-03-27 | 1998-10-09 | Ntn Corp | Seal for ball screw |
| JPH11335657A (en) * | 1998-05-28 | 1999-12-07 | Ntn Corp | Oil-containing seal device for ball screw |
| US20060076214A1 (en) * | 2004-10-08 | 2006-04-13 | Chuang-Pao Yang | Hooked dust scraper for ball screw unit |
| JP2007205462A (en) * | 2006-02-01 | 2007-08-16 | Nsk Ltd | Ball screw device |
| WO2013061557A1 (en) * | 2011-10-24 | 2013-05-02 | 日本精工株式会社 | Ball screw device and dust protection member extraction tool |
| CN103104668A (en) * | 2011-11-14 | 2013-05-15 | 上银科技股份有限公司 | Ball screw of scraping-brushing machine with locating structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908008A (en) * | 2021-01-19 | 2021-06-04 | 陈寿康 | Good removal traffic signal lamp of stability |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791445B (en) | 2018-03-13 |
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