CN108843757A - A kind of rolling friction type lead screw - Google Patents
A kind of rolling friction type lead screw Download PDFInfo
- Publication number
- CN108843757A CN108843757A CN201811036836.1A CN201811036836A CN108843757A CN 108843757 A CN108843757 A CN 108843757A CN 201811036836 A CN201811036836 A CN 201811036836A CN 108843757 A CN108843757 A CN 108843757A
- Authority
- CN
- China
- Prior art keywords
- rolling
- screw thread
- lead screw
- column
- rolling column
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2261—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers arranged substantially perpendicular to the screw shaft axis
Abstract
The present invention provides a kind of rolling friction type lead screws, including lead screw main body, the screw thread being linked together with the lead screw main body, the rolling friction type lead screw further includes rolling column, the screw thread is equipped with notch, the rolling column is placed in the notch, the rolling column and the slit space cooperate, and the rolling column is flexibly connected with the screw thread, and the diameter dimension for rolling column is greater than the thickness of the screw thread.Beneficial effect：It is described that the screw thread pair of sliding friction is converted to rolling friction campaign, and make cleaning convenient since rolling column 3 is exposed to outside completely, structure is simple.
Description
Technical field
The present invention relates to mechanical device more particularly to a kind of rolling friction type lead screws.
Background technique
Screw and nut are attached by the way of directly screwing connection under normal conditions, mechanism energy in this way
It realizes the rotary motion that the rotary motion of thread spindle is converted to nut, can be oriented to for workbench using such characteristic
Movement.The fricting movement between above-mentioned screw thread pair is sliding friction under normal conditions.Now there is internal and external circulation type roller silk on the market
Above-mentioned sliding friction is converted to rolling friction by thick stick pair of nut, but structure is complicated for such ball guide screw nat, system
Trouble is made, commutator is in addition also used, commutator is easy to happen damage in the long-term use process, shortens ball-screw spiral shell
Female secondary service life.
Summary of the invention
The present invention overcomes the shortcomings of that background technique provides a kind of rolling friction type lead screw, designs and develops the mesh of the present apparatus
, the screw thread pair of sliding friction is converted to rolling friction campaign, and clear up conveniently, structure is simple.
The present invention provides following technical proposals：A kind of rolling friction type lead screw, including lead screw main body 1 and the lead screw
The screw thread 2 that main body 1 is linked together, the rolling friction type lead screw further include rolling column 3, and the screw thread 2 is equipped with notch 4, described
It rolls column 3 to be placed in the notch 4, the rolling column 3 and 4 clearance fit of notch, the rolling column 3 and the screw thread 2
It is flexibly connected, the diameter dimension for rolling column 3 is greater than the thickness of the screw thread 2.
Beneficial effects of the present invention：This lead screw main body 1 is connected to screw thread 2, rolls the common precession of column 3 with described be threadedly coupled
In nut, column 3 is rolled along the helicla flute of the inner wall of nut and does rolling movement.Since this rolling column 3 is exposed and outer wall, so that
Clear up it is more convenient, it is described roll column 3 diameter dimension be greater than its purpose of the thickness of the screw thread 2 also for convenient for formed rolling
It is dynamic, to form rolling friction, reduce frictionally damage.It is described that the screw thread pair of sliding friction is converted to rolling friction campaign, and
And making cleaning convenient since rolling column 3 is exposed to outside completely, structure is simple.
Detailed description of the invention
Fig. 1 is the schematic perspective view of rolling friction type lead screw of the present invention.
Fig. 2 is the planar structure schematic diagram of the rolling friction type lead screw.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described with specific embodiment.
Fig. 1, in 2：Lead screw main body 1, rolls column 3, notch 4 at screw thread 2.
A kind of rolling friction type lead screw, it is described including lead screw main body 1, the screw thread 2 being linked together with the lead screw main body 1
Rolling friction type lead screw further includes rolling column 3, and the screw thread 2 is equipped with notch 4, and the rolling column 3 is placed in the notch 4, institute
It states and rolls column 3 and 4 clearance fit of notch, the rolling column 3 is flexibly connected with the screw thread 2, the diameter for rolling column 3
Size is greater than the thickness of the screw thread 2.
Operation instruction：This lead screw main body 1 is connected to screw thread 2 in use, rolls column 3 jointly with described be threadedly coupled
In precession nut, column 3 is rolled along the helicla flute of the inner wall of nut and does rolling movement.Since this rolling column 3 is exposed and outer wall,
So that cleaning is more convenient, the diameter dimension for rolling column 3 is greater than its purpose of the thickness of the screw thread 2 also for convenient for shape
At rolling, to form rolling friction, frictionally damage is reduced.
Claims (1)
1. a kind of rolling friction type lead screw, including lead screw main body（1）And the lead screw main body（1）The screw thread being linked together（2）,
It is characterized in that, the rolling friction type lead screw further includes rolling column（3）, the screw thread（2）Equipped with notch（4）, the rolling
Column（3）It is placed in the notch（4）In, the rolling column（3）With the notch（4）Clearance fit, the rolling column（3）With it is described
Screw thread（2）It is flexibly connected, the rolling column（3）Diameter dimension be greater than the screw thread（2）Thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036836.1A CN108843757A (en) | 2018-09-06 | 2018-09-06 | A kind of rolling friction type lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036836.1A CN108843757A (en) | 2018-09-06 | 2018-09-06 | A kind of rolling friction type lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843757A true CN108843757A (en) | 2018-11-20 |
Family
ID=64189713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036836.1A Pending CN108843757A (en) | 2018-09-06 | 2018-09-06 | A kind of rolling friction type lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843757A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107463A (en) * | 2005-02-07 | 2008-01-16 | Thk株式会社 | Movement guiding device |
| CN201723672U (en) * | 2009-11-16 | 2011-01-26 | 江苏速升自动化装备系统工程有限公司 | Combined screw pair |
| CN103410940A (en) * | 2013-08-20 | 2013-11-27 | 山东威达重工股份有限公司 | Rolling and sliding composite lead screw pair |
| CN103629319A (en) * | 2013-12-11 | 2014-03-12 | 洪荣华 | Pin roller bearing nut and screw rod pair |
-
2018
- 2018-09-06 CN CN201811036836.1A patent/CN108843757A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107463A (en) * | 2005-02-07 | 2008-01-16 | Thk株式会社 | Movement guiding device |
| CN201723672U (en) * | 2009-11-16 | 2011-01-26 | 江苏速升自动化装备系统工程有限公司 | Combined screw pair |
| CN103410940A (en) * | 2013-08-20 | 2013-11-27 | 山东威达重工股份有限公司 | Rolling and sliding composite lead screw pair |
| CN103629319A (en) * | 2013-12-11 | 2014-03-12 | 洪荣华 | Pin roller bearing nut and screw rod pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181120 |