CN202048153U - Planet type roller leading screw - Google Patents
Planet type roller leading screw Download PDFInfo
- Publication number
- CN202048153U CN202048153U CN2011201327440U CN201120132744U CN202048153U CN 202048153 U CN202048153 U CN 202048153U CN 2011201327440 U CN2011201327440 U CN 2011201327440U CN 201120132744 U CN201120132744 U CN 201120132744U CN 202048153 U CN202048153 U CN 202048153U
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- CN
- China
- Prior art keywords
- leading screw
- roller
- nut
- screw
- planet
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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.)
- Expired - Fee Related
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- 125000006850 spacer group Chemical group 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 32
- 238000005096 rolling process Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
The utility model provides a planet type roller leading screw which is of a simple and compact structure, high in bearing capability, not liable to wear, wide in pitch scope, highly reliable, and enables the high speed running to be realized. The planet type roller leading screw comprises a leading screw, one or more rollers, two roller planet cages, a nut and two spacing rings. The planet type roller leading screw is small in axial direction gap, high in transmission efficiency, and enables the high speed transmission to be realized from the minimal pitch to super-long lead. According to the utility model, the conversion from the rotary movement to the rectilinear movement is realized, and the high speed rotation of the leading screw is realized while the nut rotates at the corresponding speed ratio. In addition, the tooth form of the nut is of a circular ring shape for convenient machining.
Description
Technical field:
The utility model relates to a kind of a kind of novel planetary ball screw that is widely used in numerical control machine tool, control executive system, navigation system, plastics machinery, military project, high-mechanic linear motion system, measuring equipment, high speed rotary motion etc.
Background technique:
At present, common lead screw pair mainly contains two classes: a class is friction pair leading screws such as trapezoidal threaded lead screw, square threaded form leading screw, and another kind of is ball screw rolling pair leading screw.The planetary roller leading screw is a kind of novel rolling pair leading screw.Friction pair leading screw carrying is big, but efficient is very low, and low-response can not be used for highi degree of accuracy, high-speed occasion.Ball screw precision height, the efficient height, response is fast, be widely used in all kinds of numerical control machine tools, but the ball screw bearing capacity is little poor rigidity.The relative ball screw of planetary roller leading screw, bearing capacity improves greatly, efficient height (about 90%), precision is close, and the life-span is 5 to 10 times of ball screw, the occasion important in key is applied.
The patent about the planetary roller leading screw of having declared in China has two, is respectively:
200310106438.X number patent application discloses a kind of planetary V thread screw roller screw pair, this planetary V thread screw roller screw pair is directly will rotatablely move to be converted into straight line motion, in being applicable to, the occasion of big helical pitch, can the above high speed operation of 5000r/min.
200720034209.5 a kind of circulation planetary roller of number patent disclosure leading screw, this circulation planetary roller leading screw also are directly will rotatablely move to be converted into straight line motion, are applicable to the occasion of little helical pitch, are not suitable for high speed operation.
Summary of the invention:
The utility model proposes a kind of novel planetary roller screw structure on the basis of the shortcoming that overcomes above two kinds of planetary roller leading screws, this novel ball screw can be realized the application of small helical pitch to the super large helical pitch; Can realize high speed operation; And the tooth form of nut adopts circle structure, so that processing.
The purpose of this utility model is achieved in that
The utility model comprises: leading screw, one or more roller, two planet retainers, nut and two spacing spacer rings.
The screw thread of leading screw is a single line or multi-thread; The helical pitch of leading screw and nut is identical or different; The screw thread of roller is single helical pitch or two kinds of helical pitches; The tooth form of described nut adopts annulus.When roller was single helical pitch, roller, leading screw, nut three's tooth profile parameter was identical.When roller was two kinds of helical pitches, a kind of thread form parameter of roller was identical with leading screw, and the another kind of thread form parameter of roller is identical with nut.Roller is positioned in the middle of leading screw and the nut, does the rolling screw motion with leading screw and nut respectively.Roller is distributed in along the leading screw direction of axis line around the leading screw, and two ends place respectively in the roller planet retainer.Planet carrier is made two roller planet retainers respectively with spacing spacer ring location.
When leading screw rotated, roller was done planetary motion round leading screw according to the planetary motion rule, also did corresponding spiral motion according to the spiral motion rule; Simultaneously, roller is meshed with the helix of nut, so the characteristics of motion between roller and the nut also must meet planetary motion rule and spiral motion rule.Therefore, the motion of roller has driven nut and has done corresponding motion, that is: when nut not being done restriction, existing the rotatablely moving of nut also has straight line motion; If rotatablely moving of restriction nut, then the nut moving linearly has been realized the motion that nut is set with respect to the leading screw work thus.
The utility model has following advantage compared to existing technology:
1, at first, the utility model planetary roller leading screw and existing planetary roller leading screw structure compared are simpler, component still less, machining control is easier, and the tooth form of nut adopts circle structure, so that processing.
2, secondly, the utility model has been realized two kinds of motion output forms of nut, and when leading screw rotated, nut can be exported the output that also can rotatablely move by straight line motion.And the planetary roller leading screw of these two kinds of structures of circulation planetary roller leading screw of the planetary V thread screw roller screw pair of 200310106438.X patent application and No. 200720034209.5 patents has only and is converted into straight-line a kind of way of output with rotatablely moving.
3, the 3rd, 200310106438.X the planetary roller leading screw helical pitch scope of planetary V thread screw roller screw pair structure be in, big helical pitch, 200720034209.5 the helical pitch scope of the circulation planetary roller leading screw of number patent is little helical pitch, the utility model has covered both helical pitch scopes with regard to letter with a kind of helical pitch scope of structure.
4, the 4th, the utility model can be realized the transmission of small helical pitch (pitch) high speed, can reach the above high speed operation of 5000r/min.And the planetary roller leading screw of the planetary V thread screw roller screw pair structure of 200310106438.X patent application does not have little helical pitch, 200720034209.5 though the circulation planetary roller leading screw of number patent has little helical pitch, but can not run up, can not realize small helical pitch.
5, the 5th, the utility model can be realized the transmission of super large helical pitch high speed, can reach the above high speed operation of 5000r/min.And the planetary roller leading screw of the planetary V thread screw roller screw pair structure of 200310106438.X patent application can be realized the transmission of big helical pitch high speed, but can not realize the transmission of super large helical pitch high speed, the circulation planetary roller leading screw of No. 200720034209.5 patents can only be realized low speed transmission in the little helical pitch.
The utility model structure compared to existing technology has following difference:
1, compare with the planetary V thread screw roller screw pair of 200310106438.X patent application, the utility model nut does not have internal tooth, and roller does not have external tooth, and roller has single helical pitch or two kinds of helical pitches, and the helical pitch of leading screw and nut can be different; 200310106438.X the nut of the planetary V thread screw roller screw pair of number patent application has internal tooth, roller has external tooth, and roller has only a kind of single helical pitch, and leading screw is necessary identical with the helical pitch of nut.
2, compare with the circulation planetary roller leading screw of No. 200720034209.5 patents, two roller planet retainers are inserted at the utility model roller two ends, and roller has two kinds of helical pitches, does not have the cage cover, do not have the cam gland, and roller does not move axially; 200720034209.5 the circulation planetary roller leading screw of number patent does not have roller planet retainer, and the cage cover is arranged, and the cam gland is arranged, roller has a kind of helical pitch, and roller moves axially, and relies on cam gland cycle reset campaign.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cross section signal of Fig. 1.
Among Fig. 1: the 1-leading screw; The one or more rollers of 2-; The 3A-first roller planet retainer; The 3B-second roller planet retainer; The 4-nut; The 5A-first spacing spacer ring; The 5B-second spacing spacer ring
Embodiment:
Be further described of the present utility model below in conjunction with accompanying drawing.
As shown in the figure, this novel planetary ball screw is made up of leading screw 1, one or more roller 2, the first roller planet retainer 3A, the second roller planet retainer 3B, nut 4, the first spacing spacer ring 5A, the second spacing spacer ring 5B, and first, second roller planet retainer and nut 4, leading screw 1, first, second spacing spacer ring are equipped with the gap.Wherein roller planet retainer is sleeved between leading screw 1 and the nut 4; The end movable set of each roller is in the mounting hole of roller planet retainer; Spacing spacer ring can be fixedly connected on the nut 4.The screw thread of leading screw 1 is single line or multi-thread (three-way to eight lines), one or more roller 2(are unusual at 6-12 by specification) screw thread be one or both helical pitches, the tooth form of nut 4 adopts annulus, the worm tooth of leading screw 1 and roller 2 mates mutually, do the rolling screw motion, roller 2 is distributed in around the leading screw 1 along leading screw 1 direction of axis line, two ends place respectively in roller planet retainer 3A, the roller planet retainer 3B, one or more rollers 2 are built in the nut 4, the worm tooth of roller 2 and nut 4 mates mutually, does the rolling screw motion.The first spacing spacer ring 5A is the spacing first roller planet retainer 3A in nut 4, and the second spacing spacer ring 5B is the spacing second roller planet retainer 3B in nut 4.
Leading screw 1 rotation, leading screw 1 utilizes friction torque to drive one or more rollers 2 and rotates, one or more rollers 2 are in spinning motion, one or more rollers 2 are made revolution motion with roller planet retainer 3A, roller planet retainer 3B, and one or more rollers 2 utilize friction torque drive nut 4 to do rotation in the same way.When rotatablely moving of nut 4 is restricted, nut 4 moving linearlies.
Claims (5)
1. planetary roller leading screw, it comprises: leading screw, nut, and be arranged at one or more rollers between leading screw and the nut, it is characterized in that: further comprising two planet retainers and two spacing spacer rings, a described roller or a plurality of rollers two ends are arranged at respectively in the retainer of both sides, and the spacing spacer ring that passes through both sides is located the tooth form employing annulus of described nut.
2. planetary roller leading screw according to claim 1 is characterized in that: the screw thread of described leading screw is a single line or multi-thread.
3. planetary roller leading screw according to claim 1 is characterized in that: the helical pitch of described leading screw and nut is identical or different.
4. planetary roller leading screw according to claim 1 is characterized in that: the screw thread of described roller is single helical pitch or two helical pitch.
5. planetary roller leading screw according to claim 1 is characterized in that: roller planet retainer and nut, leading screw, spacing spacer ring are equipped with the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201327440U CN202048153U (en) | 2011-04-29 | 2011-04-29 | Planet type roller leading screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201327440U CN202048153U (en) | 2011-04-29 | 2011-04-29 | Planet type roller leading screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048153U true CN202048153U (en) | 2011-11-23 |
Family
ID=44988462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201327440U Expired - Fee Related CN202048153U (en) | 2011-04-29 | 2011-04-29 | Planet type roller leading screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641149A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Differential type planetary roller screw |
| CN110056603A (en) * | 2018-12-24 | 2019-07-26 | 江苏铁科新材料股份有限公司 | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device |
-
2011
- 2011-04-29 CN CN2011201327440U patent/CN202048153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641149A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Differential type planetary roller screw |
| CN110056603A (en) * | 2018-12-24 | 2019-07-26 | 江苏铁科新材料股份有限公司 | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANGZHOU COVER TRANSMISSION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUANG LIZHEN Effective date: 20130418 Free format text: FORMER OWNER: WANG JIANBO JU XIAORONG Effective date: 20130418 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ye Peiqing Inventor after: Huang Lizhen Inventor after: Wang Jianbo Inventor after: Ju Xiaorong Inventor before: Huang Lizhen Inventor before: Wang Jianbo Inventor before: Ju Xiaorong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG LIZHEN WANG JIANBO JU XIAORONG TO: YE PEIQING HUANG LIZHEN WANG JIANBO JU XIAORONG Free format text: CORRECT: ADDRESS; FROM: 213000 CHANGZHOU, JIANGSU PROVINCE TO: 225000 YANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130418 Address after: 225000 No. 217 West Development Road, Yangzhou, Jiangsu, Yangzhou Patentee after: Yangzhou fortune Drive Technology Co., Ltd. Address before: Jiangsu province Changzhou City Tianning District 213000 Dasan Street No. 111 Fu village before Qunli Village Patentee before: Huang Lizhen Patentee before: Wang Jianbo Patentee before: Ju Xiaorong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140429 |