CN100420863C - Dog fixed scraper - Google Patents
Dog fixed scraper Download PDFInfo
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- CN100420863C CN100420863C CNB2004100499872A CN200410049987A CN100420863C CN 100420863 C CN100420863 C CN 100420863C CN B2004100499872 A CNB2004100499872 A CN B2004100499872A CN 200410049987 A CN200410049987 A CN 200410049987A CN 100420863 C CN100420863 C CN 100420863C
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- brushing device
- scraping brushing
- trip
- nut
- screw
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Abstract
The present invention relates to a scraping and brushing device with a clamping hook in a fixed type, which is used for the combination of a screw rod and a screw nut. The scraping and brushing device mainly comprises a screw thread part and a clamping part, and is mainly characterized in that the scraping and brushing device does not need a screw for lock fixation. The scraping and brushing device is clamped on the screw nut by the designed clamping hook by the structure in a clamping slot type, and can obtain the advantages of simple and convenient disassembly and assembly, processing cost and assembling time saving, etc.
Description
Technical field
The invention relates to the scraping brushing device structure improvement of screw rod nut combination, its scraping brushing device can effectively intercept chip or impurity enters in the ball path of ball screw, makes up unlikely impaired with protection screw rod nut.
Background technique
The combination of screw rod nut is a kind of work package that is widely used in mechanical engineering field, and major applications is the straight line motion that rotatablely moving of screw rod is converted to nut, and the mat nut moves the workpiece of gearing on screw rod.Wherein ball screw is the higher workpiece of working efficiency in the screw rod nut combination, because of nut is that ball between both spiral chutes of mat rolls to move moving on the screw rod.
But if having chip or impurity to be attached on the screw rod, nut enters in the rolling path of ball through then causing chip or impurity, the start of ball screw is had some setbacks, even severe patient may make the spiral chute between ball or screw rod and nut impaired, makes whole group ball screw can't continue to use and scrap; So, ball screw scrape bits extremely important.
Mainly scraping in the bits mode of ball screw known today, one of them is to adopt the scraping brushing device mode, as shown in figure 10, wherein comprises screw rod 10, is linked in nut 23, scraping brushing device 60 and retaining screw 70 etc. on the screw rod 10; In this structure, scraping brushing device 60 is arranged at nut 23 two ends of the surface of contact of screw rod 10 and nut 23, offers several fixed holes 231 on its nut 23, has retaining screw 70 that scraping brushing device 60 is locked on the nut 23 in the fixed hole 231.Because the means of fixation of its scraping brushing device 60 is with retaining screw 70 lockings, so must on nut 23, be drilled with earlier fixed hole 231 on the manufacturing process, then in the nut 23 that scraping brushing device 60 is screwed on the screw rod 10, then the fixed hole 231 on the mat nut 23 is holed on scraping brushing device 60, pins scraping brushing device 60 with retaining screw 70 again.
Too loaded down with trivial details and time of increase making of the mode work flow of the known fixedly scraping brushing device of this kind, moreover, so Duo work flow also makes the probability that produces flaw become big, gets into screw rod and the too thin locking of scraping brushing device thickness when locking screw, tapping as leakage and is difficult for or the like.Therefore known techniques is real remains further to be improved.
Summary of the invention
The object of the present invention is to provide the fixed scraping brushing device of a kind of trip, can not need use fixedly scraping brushing device of screw, convenient to reduce work flow and assembling is cooperated, and reduce manufacture cost.
For this reason, the technological scheme of the present invention's proposition is:
The invention relates to a kind of fixing fixed scraping brushing device of trip of screw that do not have, it is used in the combination of screw rod nut, especially on the ball screw; Because of ball screw is to be rolling medium between screw rod and nut with the ball, so can reduce frictional force to increase efficient; But the dust of ball screw outside, smear metal and foreign matter then can influence ball and roll and lower efficiency if enter ball screw inside, even may damage ball screw.So the outlet end that cooperates with screw rod in nut is provided with scraping brushing device and invades with isolated foreign matter, make the smooth-going rolling of ball and reach high efficiency, the considerable design of genus ball screw in fact.
The structure of the fixed scraping brushing device of trip of the present invention mainly has spiro tooth part and engagement portion two-part, and its spiro tooth part is arranged at the scraping brushing device inboard, and the engagement portion is arranged at the scraping brushing device outside; The trip of engagement portion, the outside protrudes from the scraping brushing device outer rim, and be arranged in outer rim apart from (pitch) according to particular sections, when making in the nut on the scraping brushing device screw-in screw rod, utilize trip to be fastened on unlikely generation relative movement on the nut and along with nut motion, moreover all the other trips that do not engage keep compressed state, can increase the degree of fitting tightly of scraping brushing device and screw rod.
Yet, because the size of scraping brushing device trip pitch determines the angle between the adjacent trip, and because of the spiro tooth part of scraping brushing device matches with screw flight, so the angle of swing of scraping brushing device and the scraping brushing device axial displacement on screw rod is proportional; Therefore the present invention reserves a spacing between scraping brushing device thread and screw flight, pitch and spacing design is proper, when the scraping brushing device trip was combined with the fixed by nut hole, the axial displacement of scraping brushing device was interfered to prevent that scraping brushing device and screw rod from producing less than the spacing of being reserved.
Moreover the present invention studies original integrally formed structure, changes the mode that is designed to separate combination spiro tooth part structure and engagement portion structure are combined into complete scraping brushing device structure; This fabricated structure can make sharing improve and reduce manufacture cost, that is when the diameter of the helical pitch of screw thread or ball is inequality, only need changes suitable spiro tooth part and can be shared in different lead or the pearl nut directly.
In addition, teething is arranged and do not have two kinds of designs of teething because the screw flight of ball screw roughly is divided into, and the spiro tooth part of scraping brushing device is because of matching with screw flight, so the design of two kinds of cooperations also need be arranged.Scraping brushing device of the present invention originally was only applicable to the screw rod of " teething is arranged ", but for making scraping brushing device of the present invention can be applicable to the screw rod of teething and not having teething simultaneously, so design one slit on scraping brushing device circumference of the present invention, be the scraping brushing device circumference is cut a bit of distance, make scraping brushing device can pull open a little distance, directly place then to screw in nut on the suitable screw flight, this design has promoted the applicability of scraping brushing device.And when scraping brushing device screwed in nut, scraping brushing device is interior because of the trip on the outer rim is pressed towards can be subjected to pressure a little, and the scraping brushing device internal diameter is dwindled and the tightr screw rod that is affixed on, and can reach better dustproof effect.
In addition, the spiro tooth part of scraping brushing device of the present invention can be made by the rubber of oil-containing, when itself and screw rod are closely cooperated, has the lubricated of appropriateness.
Relevant the present invention is for reaching above-mentioned purpose, the technology that is adopted, means and other effect, now lift a preferable possible embodiments and cooperate graphic detailed description as after, believe the above-mentioned purpose of the present invention, feature and other advantage, when can by one deeply and concrete understanding.
Description of drawings
Fig. 1 is matched with the generalized section of nut for the fixed scraping brushing device of trip of the present invention;
Fig. 2 is the schematic perspective view of the fixed scraping brushing device of Fig. 1 trip;
Fig. 3 is the generalized section of the fixed scraping brushing device of Fig. 2 trip;
The part schematic representation that Fig. 4 cooperates with nut for the fixed scraping brushing device of trip of the present invention;
The front portion schematic representation that Fig. 5 cooperates with nut for the fixed scraping brushing device of trip of the present invention;
Fig. 6 is another mode of execution schematic representation of the fixed scraping brushing device of trip of the present invention;
Fig. 7 is the 3rd a mode of execution schematic representation of the fixed scraping brushing device of trip of the present invention;
Fig. 8 A, B, C are the different seam shape schematic representation of the fixed scraping brushing device of trip of the present invention;
Fig. 9 A, B, C are the hook-shaped shape schematic representation of different cards of the fixed scraping brushing device of trip of the present invention; And
Figure 10 is matched with the generalized section of nut for traditional scraping brushing device.
[figure number explanation]
10 screw rods, 11 worm tooths
20 nuts, 21 engagement grooves
23 nuts, 231 fixed holes
30 scraping brushing devices, 31 spiro tooth parts
32 engagement portions, 321 trips
33 gaps, 40 scraping brushing devices
41 spiro tooth parts, 411 threads
412 engagement grooves, 42 hook parts
421 trips, 422 bonds
50 scraping brushing devices, 51 spiro tooth parts
52 hook parts, 53 slits
60 scraping brushing devices, 70 retaining screws
P pitch δ spacing
The L lead of screw thread
Embodiment
The invention provides a kind of fixing scraping brushing device of screw that do not have, as shown in Figure 1, Fig. 1 is matched with the generalized section of nut for the fixed scraping brushing device of trip of the present invention, wherein nut 20 moves on screw rod 10 by ball, 30 of scraping brushing devices are arranged at nut 20 and the surface of contact two ends with screw rod 10 of lead of screw thread L, and on nut 20 internal diameters at surface of contact two ends, be milled with several engagement grooves 21, with fixing scraping brushing device 30.
Fig. 2 is the schematic perspective view of the fixed scraping brushing device of Fig. 1 trip, and Fig. 3 is the generalized section of the fixed scraping brushing device of Fig. 2 trip; Scraping brushing device 30 wherein includes 32 two major components of spiro tooth part 31 and engagement portion, its scraping brushing device 30 inboards then are engagement portion 32 for spiro tooth part 31 outsides, and the trip 321 of engagement portion, the outside 32 protrudes from scraping brushing device 30 outer rims, inboard spiro tooth part 31 then with the threads engaged of the screw rod 10 of Fig. 1; Between spiro tooth part 31 and engagement portion 32, be provided with a gap 33, make the trip 321 can be, and can screw in the nut inwardly by pressing; Trip 321 wherein is an inclined-plane (can comprise tapered plane and slant curved surface) with the surface of contact of nut (not drawing among the figure), and trip 321 can be screwed in the nut by pressing smoothly.
The lateral parts schematic representation that Fig. 4 cooperates with nut for the fixed scraping brushing device of trip of the present invention, the front portion schematic representation that Fig. 5 cooperates with nut for the fixed scraping brushing device of trip of the present invention; Wherein the trip 321 on the scraping brushing device 30 is arranged in outer rim according to pitch P, and in the time of in scraping brushing device 30 screws in nuts 20, trip 321 is pushed by nut 20 and to the condensation of the center of scraping brushing device 30.The present invention avoids scraping brushing device 30 to produce with the screw rod 10 with lead of screw thread L to interfere, and reserves a spacing δ between scraping brushing device 30 threads and screw rod 10 screw threads; In Fig. 4, as long as scraping brushing device 30 is rotated the P/2 angle forward or backward, extruded trip 321 can enter in the engagement groove 21 and be fastened on the nut 20, makes scraping brushing device 30 along with nut 20 motions.The present invention further derives the relation between pitch P and the spacing 6, and it is as follows to find out a relation:
When P≤720 °. (δ/L) is an optimal design.
Fig. 6 is another mode of execution schematic representation of the fixed scraping brushing device of trip of the present invention; Scraping brushing device 40 wherein is separated from one another with spiro tooth part 41 structures and engagement portion 42 structures, and then is combined into complete scraping brushing device 40 structures; Thread 411 with the threads engaged of screw rod (not drawing among the figure) is arranged in the spiro tooth part 41, and the outside has engagement groove 412 can supply to match with engagement portion 42, and engagement portion 42 outer periphery have trip 421 inner circumference edges to have bond 422 to match with the engagement groove 412 of spiro tooth part 41.Therefore when the diameter of the helical pitch of screw thread or ball is inequality, only need changes suitable spiro tooth part and can be shared in different lead or the pearl nut directly.
Fig. 7 is the 3rd a mode of execution schematic representation of the fixed scraping brushing device of trip of the present invention; Scraping brushing device 50 wherein has spiro tooth part 51 outsides that engagement portion 52 is then arranged equally in the inboard, and design one slit 53 on scraping brushing device 50 circumference, be scraping brushing device 50 circumference are cut a bit of distance, when scraping brushing device 50 screws in nut (not drawing among the figure), the trip that scraping brushing device 50 does not engage because of outer rim is pressed towards the interior pressure a little that is subjected to, scraping brushing device 50 internal diameters are dwindled and the tightr screw rod that is affixed on a little, can reach better dustproof effect.
Fig. 8 is the different seam shape schematic representation of the fixed scraping brushing device of trip of the present invention; Fig. 9 is the hook-shaped shape schematic representation of different cards of the fixed scraping brushing device of trip of the present invention; The slit 53 of Fig. 8 is located between the 52 liang of adjacent trips in engagement portion, and the slit 53 among Fig. 8 A, 8B, the 8C is respectively difform slit, the situation of the unlikely generation dislocation of the function that makes it have the location.The trip head shapes of engagement portion 32 upper clamping hooks 321 of Fig. 9 scraping brushing device can be round shape tapered plane and the arc slant curved surface of Fig. 9 B and the pyramidal tapered plane of Fig. 9 C of Fig. 9 A.
Above-listed detailed description is at the specifying of possible embodiments of the present invention, yet this embodiment is not in order to limiting claim of the present invention, all do not break away from skill spirit of the present invention institute for it equivalence implement or change, all should be contained in the claim of this case.
The present invention is a kind of breakthrough for industrial circle, is a kind of innovation, so the present invention has the utilizability on the industry, and should be unquestionable; In addition, the disclosed structure of this case inventive embodiments, be not seen in publication before the application, also not public use has the as above fact of effect enhancement again, therefore in addition, novelty of the present invention and progressive all meet again, so propose the application of patent of invention in accordance with the law, to request and give examination and grant quasi patent early, the true feeling moral is just.
Claims (6)
1. fixed scraping brushing device of trip, it is characterized in that: it is arranged at the two ends of the nut that matches with the screw rod with lead of screw thread L, and the two ends internal diameter that this nut and screw rod screw togather surface of contact is provided with engagement groove, wherein:
This scraping brushing device includes spiro tooth part and engagement portion, and spiro tooth part has the threads engaged of thread and above-mentioned screw rod in the inboard, its engagement portion has trip and protrudes from above-mentioned scraping brushing device outer rim in the outside, between spiro tooth part and engagement portion, be provided with a gap, trip can be inwardly screwed in by pressing in the nut and partly be sticked in the engagement groove; Above-mentioned trip is arranged in outer rim according to particular sections apart from P, and reserves a spacing δ between the thread of above-mentioned spiro tooth part and the above-mentioned screw flight, makes P≤720 ° * (δ/L).
2. the fixed scraping brushing device of trip as claimed in claim 1 is characterized in that: the trip that above-mentioned engagement portion part does not engage keeps compressed state, so that increase the degree of fitting tightly of scraping brushing device and screw rod.
3. the fixed scraping brushing device of trip as claimed in claim 1 is characterized in that: the surface of contact of trip and nut is an inclined-plane.
4. as claim 1, the fixed scraping brushing device of 2 or 3 described trips, it is characterized in that: design one slit on the circumference of this scraping brushing device.
5. as claim 1, the fixed scraping brushing device of 2 or 3 described trips, it is characterized in that: the spiro tooth part and the engagement portion of this scraping brushing device are separated from one another, and then are combined into complete scraping brushing device structure.
6. as claim 1, the fixed scraping brushing device of 2 or 3 described trips, it is characterized in that: this spiro tooth part is made by the rubber of oil-containing, makes it have the lubricated of appropriateness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100499872A CN100420863C (en) | 2004-06-24 | 2004-06-24 | Dog fixed scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100499872A CN100420863C (en) | 2004-06-24 | 2004-06-24 | Dog fixed scraper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712746A CN1712746A (en) | 2005-12-28 |
| CN100420863C true CN100420863C (en) | 2008-09-24 |
Family
ID=35718495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100499872A Active CN100420863C (en) | 2004-06-24 | 2004-06-24 | Dog fixed scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100420863C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104668B (en) * | 2011-11-14 | 2015-11-04 | 上银科技股份有限公司 | A kind of ball screw with position structure scraping brushing device |
| CN106113309A (en) * | 2016-08-18 | 2016-11-16 | 四川远星橡胶有限责任公司 | A kind of banbury with feeding device |
| TWI695160B (en) * | 2018-12-26 | 2020-06-01 | 周文三 | Pressure gauge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413081Y (en) * | 2000-01-11 | 2001-01-03 | 汪洋 | Guard nut |
| US6276225B1 (en) * | 1998-11-11 | 2001-08-21 | Thk Co., Ltd. | Ball screw assembly |
| CN2573781Y (en) * | 2002-09-25 | 2003-09-17 | 上银科技股份有限公司 | Ball screw with combined scraping and brushing device |
| CN2597761Y (en) * | 2002-12-27 | 2004-01-07 | 银泰科技股份有限公司 | Dust-proof lubricator for ball guiding screw |
| CN1465874A (en) * | 2002-06-19 | 2004-01-07 | 上银科技股份有限公司 | Air-blade type ball screw |
-
2004
- 2004-06-24 CN CNB2004100499872A patent/CN100420863C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276225B1 (en) * | 1998-11-11 | 2001-08-21 | Thk Co., Ltd. | Ball screw assembly |
| CN2413081Y (en) * | 2000-01-11 | 2001-01-03 | 汪洋 | Guard nut |
| CN1465874A (en) * | 2002-06-19 | 2004-01-07 | 上银科技股份有限公司 | Air-blade type ball screw |
| CN2573781Y (en) * | 2002-09-25 | 2003-09-17 | 上银科技股份有限公司 | Ball screw with combined scraping and brushing device |
| CN2597761Y (en) * | 2002-12-27 | 2004-01-07 | 银泰科技股份有限公司 | Dust-proof lubricator for ball guiding screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1712746A (en) | 2005-12-28 |
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