CN101943253A - End plug type ball reverser - Google Patents
End plug type ball reverser Download PDFInfo
- Publication number
- CN101943253A CN101943253A CN 201010270242 CN201010270242A CN101943253A CN 101943253 A CN101943253 A CN 101943253A CN 201010270242 CN201010270242 CN 201010270242 CN 201010270242 A CN201010270242 A CN 201010270242A CN 101943253 A CN101943253 A CN 101943253A
- Authority
- CN
- China
- Prior art keywords
- ball
- reverser
- circular arc
- end plug
- raceway
- 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
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Abstract
The invention relates to an end plug type ball reverser, in particular to a device for circulating a ball chain in a bent raceway in a screw and nut mechanism and solving the problems of friction and collision among balls and motion coherence. The end plug type ball reverser comprises a matrix and a ball raceway and is characterized in that a profile in the ball raceway comprises two tangential arcs which comprise a first arc and a second arc, wherein the first arc is tangential with a central straight line at the entry of the ball raceway, the second arc is tangential with an inclined line at the exit of the ball raceway, and an included angle between the inclined line and a horizontal line at the exit of the ball raceway is a helix angle. The invention reduces a collision angle between each ball and the reverser, lessens the friction and the collision among the balls and can ensure that the ball chain more smoothly circulates in the bent raceway.
Description
Technical field
The present invention relates to a kind ofly be used for screw rod and nut body makes ball chain circuit device in the bending raceway, specifically a kind of end plug type ball reverser.
Background technique
Ball screw pair is the key feature that lathe and other machines are realized precision mechanical transmission, and the Performance And Reliability of ball screw pair is directly determining the lathe overall performance.Traditional ball screw pair structure composition mainly contains: lead screw shaft, nut, ball and ball reversing device.The fluidity of motion of ball chain has directly determined the ball screw adjutant to rotatablely move to be converted to straight line motion or straight line motion has been converted to the quality that rotatablely moves.The error of leading screw and nut rolling way makes ball that mutual friction mutually and collision easily take place at the volley in actual production, makes the friction torque of ball screw pair not steady; Simultaneously, the collision between ball also makes ball screw pair produce noise, and transmission efficiency reduces, the working life of having reduced ball screw pair.And when using present existing ball isolator, when ball ran to bend, ball and isolator produced bigger friction, had slackened the effect of ball isolator.
Summary of the invention
The object of the present invention is to provide a kind of end plug type ball reverser, by the friction between the change reverser track radian solution ball and the problem of collision.
The present invention solves the technological scheme that its technical problem takes: end plug type ball reverser, comprise matrix and ball road, and it is characterized in that the molded lines in the described ball road is made of two tangent circular arcs; Described circular arc is divided into first circular arc and second circular arc, and the central line of first circular arc and ball road ingress is tangent, and the oblique line in second circular arc and ball road outlet port is tangent; The horizontal angle in described oblique line and ball road outlet port is a lead angle.
The invention has the beneficial effects as follows: reduced angle of impact between ball and the reverser, reduced friction and collision between the ball, and can make ball chain circulation more glibly in the bending raceway.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1 matrix, 2 ball road, 3 first circular arcs, 4 second circular arcs, 5 first point of contacts, 6 oblique lines, 7 second point of contacts.
Embodiment
As shown in Figure 1.End plug type ball reverser comprises matrix 1 and ball road 2, and the molded lines in the described ball road 2 is made of two tangent circular arcs; Described circular arc is divided into first circular arc 3 and second circular arc 4, first circular arc 3 is tangent with the central line of ball road 2 ingress, the oblique line 6 that while first circular arc 3 and second circular arc 4 are tangential on first point of contact, 5, the second circular arcs 4 and ball road 2 outlet ports is tangential on second point of contact 7; Described oblique line 6 is a lead angle with the horizontal angle in ball road 2 outlet ports.
Design principle: first circular arc 3 is tangent with the central line at place, entrance, can guarantee the continuity of ball motion when ball enters reverser; First circular arc 3 and second circular arc 4 are tangent, can guarantee the continuity of ball motion when ball enters reverser; Outlet oblique line 6 is a lead angle with the horizontal line angle, can guarantee the continuity of ball motion when ball leaves reverser; Use first circular arc 3 and second circular arc 4 to replace traditional single circular arc can reduce the rolling process of ball in reverser, reduced the size of the striking force between ball and the reverser simultaneously.
Claims (3)
1. end plug type ball reverser comprises matrix and ball road, it is characterized in that, the molded lines in the described ball road is made of two tangent circular arcs.
2. end plug type ball reverser according to claim 1 is characterized in that described circular arc is divided into first circular arc and second circular arc, and the central line of first circular arc and ball road ingress is tangent, and the oblique line in second circular arc and ball road outlet port is tangent.
3. end plug type ball reverser according to claim 2 is characterized in that the horizontal angle in described oblique line and ball road outlet port is a lead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270242 CN101943253A (en) | 2010-09-02 | 2010-09-02 | End plug type ball reverser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270242 CN101943253A (en) | 2010-09-02 | 2010-09-02 | End plug type ball reverser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101943253A true CN101943253A (en) | 2011-01-12 |
Family
ID=43435396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010270242 Pending CN101943253A (en) | 2010-09-02 | 2010-09-02 | End plug type ball reverser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101943253A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735762A (en) * | 2003-03-12 | 2006-02-15 | 日本精工株式会社 | Rolling screw device |
| CN1756916A (en) * | 2003-03-07 | 2006-04-05 | 日本精工株式会社 | Ball screw device |
| CN2777285Y (en) * | 2005-01-10 | 2006-05-03 | 李茂碷 | Improved ball screw stem circulation device structure |
| CN201129422Y (en) * | 2007-11-14 | 2008-10-08 | 李重庆 | Improved screw cap of ball leading screw |
-
2010
- 2010-09-02 CN CN 201010270242 patent/CN101943253A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756916A (en) * | 2003-03-07 | 2006-04-05 | 日本精工株式会社 | Ball screw device |
| CN1735762A (en) * | 2003-03-12 | 2006-02-15 | 日本精工株式会社 | Rolling screw device |
| CN2777285Y (en) * | 2005-01-10 | 2006-05-03 | 李茂碷 | Improved ball screw stem circulation device structure |
| CN201129422Y (en) * | 2007-11-14 | 2008-10-08 | 李重庆 | Improved screw cap of ball leading screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110112 |