CN106224478A - Multistage leading screw is combined in new-type rolling friction - Google Patents
Multistage leading screw is combined in new-type rolling friction Download PDFInfo
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- CN106224478A CN106224478A CN201610728897.9A CN201610728897A CN106224478A CN 106224478 A CN106224478 A CN 106224478A CN 201610728897 A CN201610728897 A CN 201610728897A CN 106224478 A CN106224478 A CN 106224478A
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- leading screw
- polygon
- rolling friction
- screw
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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 present invention provides the friction of a kind of new-type rolling to combine multistage leading screw, it is simple and compact for structure, high reliability, high efficiency, the most easy to wear, can realize running up transmitting moment of torsion accurately.The friction of this new-type rolling is combined multistage leading screw and is included n level screw pair, couple at least through a polygon rolling friction pair between the leading screw of adjacent two-stage screw pair, polygon rolling friction pair is packed on prime leading screw, and be configured in the polygon endoporus of rear class leading screw, it is achieved multistage lead screw linkage.The compact conformation of the present invention, convenient and reliable assembly, reliably the moment of torsion of previous stage leading screw can be delivered on next stage leading screw accurately, reliably, make two-stage leading screw can make the motion of corresponding synchronous rotary, there is spin stabilization, reliable, high efficiency, it is quick on the draw, the feature such as fluent, the synchronous effect of good leading screw can be obtained.
Description
Technical field:
The present invention relates to a kind of new-type rolling friction and combine multistage leading screw, belong to technical field of mechanical transmission.Can be widely applied to electricity
Dynamic straight perpendicular device, electronic act are stretched, Digit Control Machine Tool, control execution system, alignment system, plastics machinery, military project, high-mechanic straight line fortune
Dynamic system, measure the aspect such as equipment, low-speed rotation, for by occasion that convert rotational motion is linear motion long-range.
Background technology:
At present, the version transmitting moment of torsion between common multistage lead screw pair is: use one between one-level leading screw and two grades of leading screws
Group opposite side double bond or two groups of opposite side double bonds transmit moments of torsion, and flat key makees sliding friction in keyway, and the mode of this kind of transmission moment of torsion exists
There will be flat key in actual application to lose efficacy, flat key blocks phenomenon of waiting indefinitely in sliding process, and transmission efficiency is low, and it is unreliable to transmit.By
In this type of multistage lead screw pair structure many should in perpendicular device, flat key slides in long keyway in lead screw hole, transmits moment of torsion process
Galloping, inefficacy, stuck phenomenon, not easy care occur, has been greatly reduced the efficiency of leading screw transmission moment of torsion, thus have must
Improve.
Summary of the invention:
Present invention improves over existing flat key in long keyway, transmit the multistage screw structure of moment of torsion, it is proposed that a kind of novel rolling
Multistage leading screw is combined in friction, and multistage leading screw is combined in this novel rolling friction can be efficiently applied to the moment of torsion between multistage leading screw
Transmission, and motion is reliable, steadily, high efficiency, be quick on the draw, fluent, sliding phenomenon.
The object of the present invention is achieved like this:
Multistage leading screw is combined in a kind of new-type rolling friction, takes 1 including n(n, and 2,3,4 .... positive integer) level screw pair is adjacent
Being coupled by least one polygon rolling friction pair between the leading screw of two-stage screw pair, polygon rolling friction pair is fixedly mounted with
On prime leading screw, and it is configured in the polygon endoporus of rear class leading screw, it is achieved multistage lead screw linkage.
The design further of the present invention is:
When multistage screw pair is two grades of screw pairs, structure includes: one-level leading screw and one-level nut, two grades of leading screws with
Two grades of nuts and at least one the polygon rolling friction pair being arranged on one-level leading screw and coordinating with two grades of leading screws, two grades
Thick stick is provided with the endoporus suitable with this polygon rolling friction pair, and one-level, two grades of leading screws are real by this polygon rolling friction pair
Now link.
When multistage screw pair is three-level lead screw pair of nut, wherein through at least between one-level leading screw and two grades of leading screws
One polygon rolling friction pair coordinates；Join through at least one second polygon rolling friction pair between leading screw and three-level lead screw for two grades
Close.
Polygon rolling friction pair uses polygon retainer and the roller being arranged on this polygon retainer or ball
Version, wherein the centrage of roller must be perpendicular to the centrage of leading screw at different levels and is arranged on retainer, and ball can be
In retainer, any direction rotates, and does not has the restriction of arranged direction.
Roller or ball can be arranged on each of polygon retainer；Or on septal surface, only arrange roller or rolling
Pearl.Retainer requires identical with bearing requirements with the material of roller (ball) and processing characteristics.
In polygon rolling friction pair between adjacent roller, or between ball, leave gap, in order to realize fluent rotation.
Leading screw uses trapezoidal screw, ball-screw or planetary roller screw.
One or more groups polygon rolling friction pair is packed in prime leading screw rear end；The mode of being fixedly mounted with uses inner & outer polygon to join
Close and coordinate, and axially positioned by locking nut；Or use the affixed mode of ringfeder；Or use close-fitting peace junction of the edges of two sheets of paper pin；Or matched in clearance
Peace junction of the edges of two sheets of paper pin；Or use interior external splines or the fixed form of flat key.
The present invention preferentially uses a polygon rolling friction pair to couple between the leading screw of adjacent two-stage screw pair.
Transmit rotary movement on two grades of leading screws reliably when one-level leading screw rotates, simultaneously at two grades of leading screws
Inside making axially-movable, during axially-movable, in polygon rolling friction pair, roller rotates formation rolling friction.
The present invention has the advantage that compared to existing technology
1, the polygon friction pair in the present invention had both transmitted moment of torsion, rolls again, efficiently solve original structure in polygon endoporus
Middle flat key slide in long keyway easily cause stuck, retardance, reliability phenomenon low, inefficient, greatly reduce the dimension of equipment
Nurse makees, and improves the secondary reliability of lead screw transmission and transmission efficiency.
2, during multistage leading screw is combined in rolling friction of the present invention, polygon rolling friction pair is a global facility, assembling letter
Single, convenient.
3, in the present invention, two grades of leading screw polygon endoporus can be easy to process by mould drawing molding.
4, rolling friction pair transmission moment of torsion, replaces sliding friction with rolling friction, and rolling frictional resistance only has sliding friction
1/40 to the 1/60 of resistance, improves transmission efficiency, reduces frictional resistance, highly sensitive, without trembleing when starting operating, transmits moment of torsion
Safe and reliable.
5, the compact conformation of the present invention, convenient and reliable assembly, can by the moment of torsion of previous stage leading screw accurately, reliably reliably
It is delivered on next stage leading screw so that two-stage leading screw can make the motion of corresponding synchronous rotary, spin stabilization, reliable, it is quick on the draw,
Fluent sliding phenomenon, can obtain the synchronous effect of good leading screw.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of two grades of leading screws of the embodiment of the present invention one；
In Fig. 1: 1-one-level leading screw；2-one-level nut；Bis-grades of leading screws of 3-；Bis-grades of nuts of 4-；5-polygon rolling friction pair；6-locks
Jack panel；
Fig. 2 A is polygon rolling friction pair structural representation；
In Fig. 2 A: 51-roller；52-polygon retainer；
Fig. 2 B is polygon ball friction pair structural representation;
In Fig. 2 B: retainer, 3-polygon retainer in 1-spin, 2-
Fig. 3 is the three-level lead screw structural representation of the embodiment of the present invention two；
In Fig. 3: 1-one-level leading screw；2-one-level nut；3-bis-leading screw；Bis-grades of nuts of 4-；5-three-level lead screw；Tri-grades of nuts of 6-；7-
First polygon rolling friction pair；8-the first locking nut；9-the second polygon rolling friction pair；10-the second locking nut.
Detailed description of the invention:
Below in conjunction with the accompanying drawings the present invention is further described.
Embodiment one:
As it is shown in figure 1, it is two grades of screw structures that multistage leading screw is combined in the friction of this new-type rolling, two grades of screw sets are contained in one-level leading screw
Outward, the version of stacking suit, the supporting nut of each leading screw are used.Including one-level leading screw (1), one-level nut (2), two
Level leading screw (3), two grades of nuts (4), polygon rolling friction pair (5), locking nuts (6).Polygon rolling friction pair (5) uses
Regular hexagon structure.But wherein one-level, the leading screw of two leading screw all size patterns, such as trapezoidal screw, ball-screw, planet rolling
Post leading screw etc..
Polygon rolling friction pair (5) is installed on one-level leading screw (1) rear end and by locking nut (6) axial restraint, one-level
Leading screw (1) rear end uses regular hexagon structure, and two grades of leading screw (3) endoporus are also regular hexagon, and polygon rolling friction pair (5) will
One-level leading screw and two grades of leading screws link up, it is achieved linkage.
As shown in the tomograph of the polygon rolling friction pair of Fig. 2 A, this polygon rolling friction pair is protected by polygon
The roller 51 holding frame 52 and be arranged on this polygon retainer forms, wherein the central axis of roller 51 in one-level, two
On the centrage of thick stick, being arranged in six planes of polygon retainer, each plane is provided with four ribs, and roller is arranged on two
Between rib, the prism in each plane is parallel to each other and is perpendicular to leading screw, and each plane can also arrange reinforcement.Each flat
Gap is left between adjacent roller, in order to realize fluent rotation on face.The inside and outside circle surface size of roller is above retainer
Size, to ensure that each bar rib does not contacts with leading screw endoporus, it is simple to roller forms rolling friction in rolling process.Polygon rolls
The quantity of the interior roller that dynamic friction is secondary, and the size of retainer can according to implement screw pair concrete dimensions, with
And moment of torsion and the push-pull effort born sets.
The work process of this example is as follows:
When one-level leading screw (1) rotates, polygon rolling friction pair (5) rotates, by polygon with one-level leading screw (1)
Friction pair (5) and the polygon inner hole of two grades of leading screws (3), drive two grades of leading screws (3) to rotate.Due in practical application
In two grades of leading screws (3) be axially located by connecting with one-level nut (2), when one-level leading screw (1) rotates, one-level nut
(2) can be linear motion by convert rotational motion, drive two grades of leading screws (3) to make corresponding straight line fortune also with one-level nut (2)
Dynamic, one-level nut (2) is only axially to position with two grades of leading screws (3), thus one-level nut does not rotates, and now, rolling polygonal rolls
Roller in dynamic friction pair can make rolling movement in one-level leading screw (1) with two grades of leading screw (3) endoporus.Thus polygon rolls and rubs
Wipe the secondary effect both having played transmission moment of torsion, in two leading screws (3) polygon endoporus, make rolling friction again.Two grades of leading screws (3) rotate
Time, the rotary motion of two grades of leading screws (3) is effectively converted into linear motion by two grades of nuts (4).
Embodiment two:
As shown in Figure 3, it is three-level lead screw structure that multistage leading screw is combined in the friction of this new-type rolling, and three-level lead screw stacking is set with, often
The supporting nut of individual leading screw, including one-level leading screw (1), one-level nut (2), two grades of leading screws (3), two grades of nuts (4), three grades of silks
Thick stick (5), three grades of nuts (6), the first polygon rolling friction pair (7), the first locking nut (8), second polygon rolling friction
Secondary (9), the second locking nut (10) form.Two polygon rolling friction pairs are packed in prime leading screw rear end, are fixedly mounted with mode
Use inner & outer polygon to coordinate, and axially positioned by locking nut.
One-level nut (2) is installed on one-level leading screw (1), and the first polygon rolling friction pair (7) inner ring is arranged on one-level
Leading screw (1) one end, makees axial restraint with the first locking nut (8), and outer ring is connected with two grades of leading screw (3) polygon endoporus.Two
Level leading screw (3) one end is close to one-level nut (2), and the other end installs the second polygon rolling friction pair (9), uses the second locking screw
Female (10) make axial restraint, and the second polygon rolling friction pair (9) outer ring is connected with three-level lead screw (5), two grades of nut (4) peaces
Being loaded on two grades of leading screws (3), three grades of nuts (6) are installed on three-level lead screw (5).
In this example, the structure of first, second polygon rolling friction pair is with embodiment one.
The work process of this example is as follows:
When one-level leading screw (1) rotates, transmit rotary movement to two grades of silks by the first polygon rolling friction pair (7)
On thick stick (3), when two grades of leading screws (3) synchronize to rotate, transmit rotary movement to three by polygon rolling friction pair (9)
In level leading screw (5), synchronous rotary made by three leading screws simultaneously.Because in practical application, two grades of leading screws (3) must be with one-level nut
(2) by one entirety of the axially coupled one-tenth of other adapter, three-level lead screw (5) must be axial by other adapter with two grades of nuts (4)
It is connected into an entirety.So while one-level leading screw (2), two grades of leading screws (3) rotate, also two grades of leading screws (3),
Moving axially in three-level lead screw (5), now first, second polygon rolling friction pair makees corresponding rolling friction.
Embodiment three:
On the basis of embodiment one, the roller construction in polygon rolling friction auxiliary structure is replaced with the structure shape of ball
Formula, and between one-level leading screw and two grades of leading screws, it is configured with two polygon rolling friction pairs.Two polygon rolling friction pairs
Be set on one-level leading screw and fix, two polygon rolling friction pairs simultaneously with the inner hole of two grades of leading screws.Polygon
Shape rolling friction pair and two grades of leading screw endoporus all use pentagonal configuration.Two polygon rolling friction pairs use interior external splines
Form is fixed on one-level leading screw.
In Fig. 2 B: polygon ball friction pair is made up of polygon fender bracket (3), interior retainer (2), ball (1).Rolling
Pearl (1) is spaced by interior retainer (2), is evenly arranged, and interior retainer (2) is arranged on polygon retainer (3), and polygon keeps
The inside and outside circle size of frame (3) and interior retainer (2) is below the size of ball inside and outside circle faying face, in order to avoid interfering ball (1)
Rolling.Because the restriction of any degree of freedom do not made in interior retainer (2) by ball (1), can rotate by any direction, so ball
(1) and the row, column of interior retainer (2) arrange can according to actual design, processing, easy to assembly manufacture.
Embodiment four:
In this example, new-type rolling friction is combined multistage leading screw and is designed as Pyatyi screw structure, by Pyatyi leading screw and Pyatyi nut,
And four polygon rolling friction pair compositions.By a polygon rolling friction pair or more than two between adjacent two-stage leading screw
Limit shape rolling friction pair or multiple polygon rolling friction pair couple.Polygon rolling friction pair is packed on prime leading screw, and
It is configured in polygon (such as triangle, tetragon, the pentagon etc.) endoporus of rear class leading screw, it is possible to achieve Pyatyi lead screw linkage.
Remaining structure is with embodiment one.
Thus it is extended to n level leading screw form, it is possible to achieve n level lead screw linkage.(n takes 1, and 2,3,4 .... positive integer).
Present configuration is simple, compact, easy for installation, stable movement, and it is straight for can be widely applied to convert rotational motion
The occasion of line motion long-range, transmission is accurately, reliable, efficiency is high.
Claims (9)
1. a multistage leading screw is combined in new-type rolling friction, including n level screw pair, it is characterized in that: adjacent two-stage leading screw spiral shell
Coupling at least through a polygon rolling friction pair between female secondary leading screw, polygon rolling friction pair is packed in prime leading screw
On, and be configured in the polygon endoporus of rear class leading screw, it is achieved multistage lead screw linkage.
Multistage leading screw is combined in rolling friction the most according to claim 1, it is characterized in that: be two grades of screw pairs, including
One-level leading screw and one-level nut, two grades of leading screws and two grades of nuts and be arranged on one-level leading screw and coordinate with two grades of leading screws
At least one polygon rolling friction pair, two grades of leading screws are provided with the endoporus suitable with this polygon rolling friction pair, one-level, two
Level leading screw is linked by polygon rolling friction pair.
Multistage leading screw is combined in rolling friction the most according to claim 1, it is characterized in that: for three-level lead screw pair of nut, wherein
At least coordinate via the first polygon rolling friction pair between one-level leading screw and two grades of leading screws；Two grades between leading screw and three-level lead screw
At least coordinate via the second polygon rolling friction pair, three-level lead screw linkage.
4. combine multistage leading screw according to the rolling friction described in claim 1,2 or 3, it is characterized in that: polygon rolling friction pair
Use polygon retainer and the roller being arranged on this polygon retainer or the version of ball；The wherein center of roller
Line is perpendicular to the centrage of leading screw at different levels and is arranged on polygon retainer.
Multistage leading screw is combined in rolling friction the most according to claim 4, it is characterized in that: on each of polygon retainer
All arrange roller or ball；Or roller or ball is only arranged in septal surface top.
Multistage leading screw is combined in rolling friction the most according to claim 5, it is characterized in that: adjacent in polygon rolling friction pair
Between roller, or between ball, leave gap.
Multistage leading screw is combined in rolling friction the most according to claim 6, it is characterized in that: leading screw uses trapezoidal screw, ball
Leading screw, planetary roller screw.
Multistage leading screw is combined in rolling friction the most according to claim 4, it is characterized in that: one or more groups polygon rolls and rubs
Wipe pair and be packed in prime leading screw rear end；The mode of being fixedly mounted with uses inner & outer polygon to coordinate, and is axially positioned by locking nut；Or
Use the affixed mode of ringfeder；Or use close-fitting peace junction of the edges of two sheets of paper pin；Or matched in clearance peace junction of the edges of two sheets of paper pin；Or external splines or flat key in using
Fixed form.
Multistage leading screw is combined in rolling friction the most according to claim 8, it is characterized in that: the silk of adjacent two-stage screw pair
Coupled by a polygon rolling friction pair between thick stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728897.9A CN106224478A (en) | 2016-08-26 | 2016-08-26 | Multistage leading screw is combined in new-type rolling friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728897.9A CN106224478A (en) | 2016-08-26 | 2016-08-26 | Multistage leading screw is combined in new-type rolling friction |
Publications (1)
| Publication Number | Publication Date |
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| CN106224478A true CN106224478A (en) | 2016-12-14 |
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|---|---|---|---|
| CN201610728897.9A Pending CN106224478A (en) | 2016-08-26 | 2016-08-26 | Multistage leading screw is combined in new-type rolling friction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641150A (en) * | 2017-02-25 | 2017-05-10 | 池州市弥优智能传动部件有限公司 | Series connection type micro ball joint |
| CN110054107A (en) * | 2019-03-22 | 2019-07-26 | 贵州力登科技发展有限公司 | A kind of medium-and-large-sized mechanical lift cylinder of Multi-stage transmission |
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| CN201450403U (en) * | 2009-07-31 | 2010-05-05 | 西安方元明科技发展有限公司 | Tower-shaped hollow lead screw multistage electric cylinder |
| CN202560728U (en) * | 2012-05-14 | 2012-11-28 | 云南三星机械设备制造股份有限公司 | Multi-section screw rod lifting arm |
| CN204061513U (en) * | 2014-08-29 | 2014-12-31 | 常州超宇机械制造有限公司 | The telescopic shaft of universal-joint |
| CN204514963U (en) * | 2015-01-26 | 2015-07-29 | 湖南航天环宇通信科技有限责任公司 | The nested supporting mechanism of multistage retractable rod |
| CN205978317U (en) * | 2016-08-26 | 2017-02-22 | 王建波 | Novel rolling friction makes up multistage lead screw |
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| DE3730393A1 (en) * | 1987-09-10 | 1989-03-23 | Lemfoerder Metallwaren Ag | Torque-transmitting connection for shaft components which can be pushed axially one into the other, in particular of the steering shaft of motor vehicles |
| DE10062680A1 (en) * | 2000-12-15 | 2002-06-20 | Ina Schaeffler Kg | Bearing which allows linear movement and torque transmission between two coaxial profiles, e.g. for vehicle steering column, comprises ball bearings mounted in sheet metal guide which presses them against inner profile |
| DE20212294U1 (en) * | 2002-06-18 | 2003-10-30 | Dura Automotive Systems Reiche | Telescopic safety steering column for road vehicle has outer tube with three flattened faces containing groups of three barrel-shaped rollers engaging three concave sides of inner tube |
| CN1946948A (en) * | 2004-09-16 | 2007-04-11 | 株式会社捷太格特 | Extendable shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641150A (en) * | 2017-02-25 | 2017-05-10 | 池州市弥优智能传动部件有限公司 | Series connection type micro ball joint |
| CN106641150B (en) * | 2017-02-25 | 2023-09-08 | 广州弥优机床有限公司 | Series miniature ball joint |
| CN110054107A (en) * | 2019-03-22 | 2019-07-26 | 贵州力登科技发展有限公司 | A kind of medium-and-large-sized mechanical lift cylinder of Multi-stage transmission |
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Application publication date: 20161214 |