CN106321762A - High-speed roller screw pair - Google Patents
High-speed roller screw pair Download PDFInfo
- Publication number
- CN106321762A CN106321762A CN201610980739.2A CN201610980739A CN106321762A CN 106321762 A CN106321762 A CN 106321762A CN 201610980739 A CN201610980739 A CN 201610980739A CN 106321762 A CN106321762 A CN 106321762A
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- CN
- China
- Prior art keywords
- screw
- speed
- nut mechanism
- speed roller
- roller
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- Pending
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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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a high-speed roller screw pair and belongs to the technical field of mechanical drive structures. The high-speed roller screw pair comprises a main screw and a supporting nut mechanism, wherein the main screw is penetratingly arranged in the middle of the supporting nut mechanism axially. The high-speed roller screw pair is characterized in that a preset number of through holes with elliptical cross sections are arranged on the outer portion of the supporting nut mechanism evenly circumferentially and penetrate through the main screw and the outer surface of the supporting nut mechanism, high-speed rollers are arranged in the through holes, the outer end faces of the high-speed rollers are tangent to the supporting nut mechanism, the inner end faces of the high-speed rollers fit the threaded surface of the main screw, and roller connecting mechanisms are arranged between the main screw and the supporting nut mechanism. The high-speed roller screw pair has the advantages that the high-speed roller screw pair is capable of adjusting and pre-tightening the screw, improving screw running efficiency and running precision, avoiding screw movement slip, increasing screw running speed and prolonging the service life of the screw.
Description
Technical field
The present invention relates to mechanical transmission technical field, be that leading screw rotary motion is converted into spiral shell by one in particular
The high-speed roller lead screw pair of female linear movement.
Background technology
At present, lead screw pair many employings ball screw assembly, existing ball-screw auxiliary structure is that leading screw adds telescopic nut, patent
Number it is the super large lead ball lead screw pair announced of the utility model of ZL201320655097.0, nut, spiral shell are set outside screw mandrel
Female outside arranges sleeve, solves the technical problem that lead screw pair fault rate is high, rigidity is little, low precision, helical pitch are little；But leading screw is at height
During speed operating, there is noise fever phenomenon big, easy, the high speed rolling that the utility model of Patent No. ZL201220237510.7 is announced
Ballscrew is secondary, arranges reverser, ball can be avoided through the impact several times of reverser, solve lead screw pair noise on nut
Greatly, the technical problem such as heating, it is achieved the high-speed motion of ball screw assembly,.
Conventional ball lead screw pair wants to reach high accuracy transmission, and leading screw and nut surface need to carry out the cure process that quenches,
High expensive, to this end, the automatic gap-eliminating roller guide-screw that the utility model of Patent No. ZL00203525.1 is announced, can make for a long time
During with, the automatic gap that eliminates is to ensure high repeatable accuracy, and technique is simple, and cost is relatively low.
Existing lead screw pair structure there is problems in that a, the pretension of feed screw nut adjusts difficulty；B, inconvenience use bull spiral shell
Stricture of vagina improves bearing capacity；C, middle rolling element are limited to the impact of machining accuracy, easily produce slippage, thus affect the longevity between part
Life, affects precision, affects transmission efficiency；D, running speed are low, are not suitable with 120 meters of high-speed cruisings per minute of point-to-point speed
Condition.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of high-speed roller lead screw pair, leading screw can not only be regulated pretension,
Improve the operational efficiency of leading screw, improve running precision, it is to avoid motion slippage, reduce and run noise, improve service life, Er Qieneng
Bring up to the speed of service reach 120 meters per minute more than, especially show the most prominent in multiple thread line lead screw pair.
The present invention solves its technical problem the technical scheme is that high-speed roller lead screw pair, including main leading screw, prop up
Support nut body, described main leading screw is axially through the middle part being located at described holding nut mechanism, it is characterised in that described support
Nut body is circumferentially evenly arranged with the perforation of the cross section ovalize of predetermined number, and described perforation runs through holding nut machine
The outer surface of structure, is provided with high-speed roller in described perforation, the outer face of high-speed roller is tangent with described holding nut mechanism, interior
End face agrees with the flank of main leading screw, is provided with roller bindiny mechanism, institute between described main leading screw and holding nut mechanism
Stating roller bindiny mechanism and include that mandrel, axle sleeve and supporting mechanism, described mandrel are set to Step Shaft, the middle position of mandrel is offered
Having keyway, mandrel is bonded with high-speed roller, and described axle sleeve is arranged at the both sides of high-speed roller, and described supporting mechanism includes supporting
Parts I and support member II, described support member I and support member II are respectively provided at both sides the outside of axle sleeve, described support
Parts I are set to the bearing arrangement being connected with holding nut mechanism, and described support member II is configured to the bearing knot of regulation
Structure, including nut, silk braid, jackscrew and axle.
Described main leading screw is set to single thread or multi start thread.
Described mandrel is the most consistent with main leading screw.
The invention has the beneficial effects as follows: high-speed roller lead screw pair, will via high-speed roller with main leading screw as main drive gear
Rotary motion passes to holding nut mechanism to realize linear movement, lead screw pair flank by agreeing with high-speed roller face, silk
Thick stick deputy thread can be single line or multi start thread, and increase load-carrying properties are agreed with in many places, and high-speed roller can adjust pretension to leading screw, especially
It is capable of the high-speed linear motion requirement that cannot meet than existing screw pair；The supporting mechanism arranged in roller bindiny mechanism
Mechanism is connected with holding nut, and axle sleeve is clamped in roller both sides, and adjustable roller axially positions, and effectively prevents altering of high-speed roller
Dynamic, improve the operational efficiency of leading screw, improve running precision, it is to avoid motion slippage, improve service life, and operation speed can be improved
Degree reach 120 meters per minute more than, especially show the most prominent in multiple thread line lead screw pair.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: the most main leading screw, 2. holding nut mechanism, 3. high-speed roller, 4. roller bindiny mechanism.
Detailed description of the invention
In conjunction with Fig. 1 and embodiment, the present invention is described in further detail, in order to the public preferably grasps the enforcement of the present invention
Method, specific embodiment of the present invention is:
High-speed roller lead screw pair, including main leading screw 1, holding nut mechanism 2, described main leading screw 1 is axially through being located at described
The middle part of support nut body 2, it is characterised in that described holding nut mechanism 2 is circumferentially evenly arranged with the transversal of predetermined number
The perforation of face ovalize, described perforation runs through the outer surface of holding nut mechanism 2, is provided with high-speed roller 3 in described perforation,
Contrasting with ball of the prior art, the rotation of roller has directionality, is not likely to produce sliding and running, can avoid because ball rotates
Non-directiveness and ball between interaction and the transmission accuracy that causes is low and slippage；
The outer face of high-speed roller 3 is tangent with described holding nut mechanism 2, and inner face agrees with the flank of main leading screw 1, in institute
Stating and be provided with roller bindiny mechanism 4 between main leading screw 1 and holding nut mechanism 2, described roller bindiny mechanism 4 includes mandrel, axle
Set and supporting mechanism；
Mandrel of the present invention is set to Step Shaft, the most consistent with main leading screw, and the middle position of mandrel offers keyway, core
Axle is bonded with high-speed roller 3, and for the drive connection of roller, axle sleeve is arranged at the both sides of high-speed roller 3, for the axle of roller
To adjusting location, described supporting mechanism includes support member I and support member II, described support member I and support member II point
Not being arranged on the outside of both sides axle sleeve, described support member I is set to the bearing arrangement being connected with holding nut mechanism 2, described
Support member II is configured to the bearing arrangement of regulation, including nut, silk braid, jackscrew and axle, can regulate height by jackscrew
Speed roller 3 agrees with the flank of main leading screw 1；
Main leading screw 1 of the present invention is multi start thread.
The operation principle of the present invention is: main leading screw 1 is as main drive gear, owing to main leading screw 1 agrees with high-speed roller 3,
Main leading screw 1 rotarily drive high-speed roller 3 rotary motion, and high-speed roller 3 is bonded with the mandrel in roller bindiny mechanism 4,
And the supporting mechanism in roller bindiny mechanism 4 is connected with holding nut mechanism 2 again, therefore communicate rotational motion to holding nut
Mechanism 2, is i.e. converted into, by the high speed rotary motion of main leading screw 1, the linear movement exported by holding nut mechanism 2, thus realizes
The high-speed linear motion of plant equipment.
With existing ball-type lead screw pair as comparative example, respectively ball screw assembly, and roller guide-screw pair are carried out dynamic resonance examination
Testing, test result is shown in Table 1；
With existing ball-type lead screw pair as comparative example, ball screw assembly, and roller guide-screw pair to equal P4 positioning precision enter respectively
Noise testing under row rotating speed 1000rpm, test result is shown in Table 1.
The secondary test data with ball screw assembly, of table 1 roller guide-screw
| Project | Ball screw assembly, | Roller guide-screw is secondary |
| Limit DN value (test value) | 220000 | 1000000 |
| Limit DN value (use value) | 50000～120000 | 300000 |
| Noise (decibel) | 63-65 | 60 |
Data from above-mentioned table it can be seen that roller guide-screw of the present invention is secondary compared with the ball screw assembly, of prior art, rolling wire
Speed limit DN test value is 4.5 times of prior art, and use DN value is 2.5～6 times of prior art, equal P4 positioning precision
5 decibels are reduced with the noise under rotating speed.
From above-mentioned data, limit DN value and noise reduction are respectively provided with and significantly improve, and have significant creative feature.
The invention has the beneficial effects as follows: main leading screw 1 flank agrees with high-speed roller 3 face, owing to lead screw pair screw thread is many
Line screw thread, many places agree with the load-carrying properties adding lead screw pair, and high-speed roller 3 can adjust pretension to leading screw；Roller bindiny mechanism 4
The supporting mechanism of middle setting is connected with holding nut mechanism, and axle sleeve is clamped in roller both sides, and adjustable roller axially positions, effectively
Preventing the play of high-speed roller 3, adjustable bearing arrangement can regulate the screw thread of high-speed roller 3 and main leading screw 1 by jackscrew
Face is agreed with, and improves the operational efficiency of leading screw, improves running precision, it is to avoid motion slippage, improves service life, and can improve fortune
Line speed reach 120 meters per minute more than, especially show the most prominent in multiple thread line lead screw pair.
The foregoing is only the preferred possible embodiments of the present invention, all impartial changes done according to scope of the present invention patent
Change and modify, all should belong to the covering scope of the present invention.
Claims (3)
1. high-speed roller lead screw pair, including main leading screw (1), holding nut mechanism (2), described main leading screw (1) is axially through setting
Middle part in described holding nut mechanism (2), it is characterised in that described holding nut mechanism (2) is circumferentially evenly arranged with pre-
If the perforation of the cross section ovalize of quantity, described perforation runs through the outer surface of holding nut mechanism (2), sets in described perforation
Being equipped with high-speed roller (3), the outer face of high-speed roller (3) is tangent with described holding nut mechanism (2), inner face and main leading screw
(1) flank agrees with, and is provided with roller bindiny mechanism (4), institute between described main leading screw (1) and holding nut mechanism (2)
State roller bindiny mechanism (4) and include that mandrel, axle sleeve and supporting mechanism, described mandrel are set to Step Shaft, the middle position of mandrel
Offering keyway, mandrel is bonded with high-speed roller (3), and described axle sleeve is arranged at the both sides of high-speed roller (3), described support machine
Structure includes that support member I and support member II, described support member I and support member II are respectively provided at both sides outside axle sleeve
Side, described support member I is set to the bearing arrangement being connected with holding nut mechanism (2), and described support member II is arranged to
The bearing arrangement of enough regulations, including nut, silk braid, jackscrew and axle.
High-speed roller lead screw pair the most according to claim 1, it is characterised in that described main leading screw (1) is set to single line spiral shell
Stricture of vagina or multi start thread.
High-speed roller lead screw pair the most according to claim 1, it is characterised in that described mandrel and main leading screw (1) axial
Cause.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980739.2A CN106321762A (en) | 2016-11-08 | 2016-11-08 | High-speed roller screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980739.2A CN106321762A (en) | 2016-11-08 | 2016-11-08 | High-speed roller screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321762A true CN106321762A (en) | 2017-01-11 |
Family
ID=57816241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610980739.2A Pending CN106321762A (en) | 2016-11-08 | 2016-11-08 | High-speed roller screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321762A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930711A (en) * | 2018-09-19 | 2018-12-04 | 浙江雷尼摩申精密机械有限公司 | A kind of rolling bearing of high speed roller bearing screw pair |
| CN110259904A (en) * | 2019-06-20 | 2019-09-20 | 深圳市世椿智能装备股份有限公司 | A kind of internal spline lead screw |
| WO2021129099A1 (en) * | 2019-12-24 | 2021-07-01 | 颀中科技（苏州）有限公司 | Half-nut assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979965A (en) * | 1958-08-18 | 1961-04-18 | Anderson Co | Motion-transmitting device |
| GB1084628A (en) * | 1965-06-16 | 1967-09-27 | Contraves Ag | Improvements in and relating to screw and nut gearing |
| DE3345669A1 (en) * | 1983-12-15 | 1985-06-27 | Günter 4050 Mönchengladbach Goebel | Rotary feed arrangement |
| US5551314A (en) * | 1994-08-24 | 1996-09-03 | Andrzejewski, Jr.; Max C. | Lead screw and linear drive assemblies using such lead screw |
| CN102287503A (en) * | 2010-06-15 | 2011-12-21 | 株式会社日立制作所 | Rotational-to-linear conversion mechanism |
-
2016
- 2016-11-08 CN CN201610980739.2A patent/CN106321762A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979965A (en) * | 1958-08-18 | 1961-04-18 | Anderson Co | Motion-transmitting device |
| GB1084628A (en) * | 1965-06-16 | 1967-09-27 | Contraves Ag | Improvements in and relating to screw and nut gearing |
| DE3345669A1 (en) * | 1983-12-15 | 1985-06-27 | Günter 4050 Mönchengladbach Goebel | Rotary feed arrangement |
| US5551314A (en) * | 1994-08-24 | 1996-09-03 | Andrzejewski, Jr.; Max C. | Lead screw and linear drive assemblies using such lead screw |
| CN102287503A (en) * | 2010-06-15 | 2011-12-21 | 株式会社日立制作所 | Rotational-to-linear conversion mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930711A (en) * | 2018-09-19 | 2018-12-04 | 浙江雷尼摩申精密机械有限公司 | A kind of rolling bearing of high speed roller bearing screw pair |
| CN110259904A (en) * | 2019-06-20 | 2019-09-20 | 深圳市世椿智能装备股份有限公司 | A kind of internal spline lead screw |
| CN110259904B (en) * | 2019-06-20 | 2024-06-07 | 深圳市世椿智能装备股份有限公司 | Internal spline screw |
| WO2021129099A1 (en) * | 2019-12-24 | 2021-07-01 | 颀中科技（苏州）有限公司 | Half-nut assembly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |