CN107575546A - It is a kind of can automatic spacing protection screw pair - Google Patents
It is a kind of can automatic spacing protection screw pair Download PDFInfo
- Publication number
- CN107575546A CN107575546A CN201710896693.0A CN201710896693A CN107575546A CN 107575546 A CN107575546 A CN 107575546A CN 201710896693 A CN201710896693 A CN 201710896693A CN 107575546 A CN107575546 A CN 107575546A
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- CN
- China
- Prior art keywords
- nut
- automatic spacing
- screw pair
- screw mandrel
- spacing protection
- 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.)
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Abstract
The invention discloses it is a kind of can automatic spacing protection screw pair, including nut and screw mandrel, the nut is divided into outer nut and inner nut, the outer nut is set on inner nut, the inner nut is set in outside screw mandrel and can moved on screw mandrel, and it is provided with helicla flute in the inner nut, inclined cutting portion is provided with the end of the side of screw mandrel, the flexible positioning piece in cutting portion is provided with cutting portion, the arc groove that route guidance is carried out to flexible positioning piece is provided with outer nut, the locating slot that depth ratio arc groove is stretched is provided with arc groove one end, positioning bearing is provided with inner nut and outer nut contact surface.It is provided by the invention it is a kind of can automatic spacing protection screw pair, its simple in construction, easy to operate, cheap, dependable performance and automatic spacing protective effect can be realized.
Description
Technical field
The present invention relates to a kind of screw pair, particularly it is a kind of can automatic spacing protection screw pair.
Background technology
Screw pair is that rotary motion can be changed into moving along a straight line by one kind, the worm drive portion being combined into by leading screw and nut
Part.On work-yard, people typically lift all kinds of noons using electronic T-shaped screw pair, and electronic T-shaped screw pair moves to
, it is necessary to which limit switch or automatic limit device could be spacing No. eight after extreme position, in order to improve the spacing reliability of screw pair,
Current screw pair develops into rectangle screw pair, trapezoidal screw pair and automatic spacing ball screw etc. by limit switch, but
Above-mentioned screw pair not yet reaches automatic spacing defencive function so far, and existing automatic spacing ball screw auxiliary structure exists in itself
Certain defect, easily deformable if the wall of ball protective case is thin, the through hole of ball protective case must be with the circular trough of nut in addition
And the helicla flute of screw mandrel precisely corresponds to, it can just go slick, this adds increased the difficulty of manufacturing technology and production cost.
The content of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art and provide it is a kind of can automatic spacing protection silk
Bar pair, its simple in construction, easy to operate, cheap, dependable performance and can realize automatic spacing protective effect.
To achieve these goals, it is of the present invention it is a kind of can automatic spacing protection screw pair, including nut and silk
Bar, the nut are divided into outer nut and inner nut, and the outer nut is set on inner nut, and the inner nut is set in outside screw mandrel
And can be moved on screw mandrel, and helicla flute is provided with the inner nut, it is provided with the end of the side of screw mandrel inclined
Cutting portion, is provided with the flexible positioning piece in cutting portion on cutting portion, is provided with outer nut and is carried out to flexible positioning piece
The arc groove of route guidance, the locating slot that depth ratio arc groove is stretched is provided with arc groove one end, in inner nut and outer spiral shell
Female contact surface is provided with positioning bearing.
In said structure, when helicla flute rotary motion of the screw mandrel along inner nut, inner nut moves up or down
And outer nut can be driven to carry out straight-line displacement, when inner nut is when being moved to extreme position, now the elasticity in cutting portion is determined
Position part can be reached in arc groove, now in rotation inner nut, outer nut can be made also to rotate accordingly so that flexible positioning piece meeting
Rotated in arc groove, once rotating to the position of locating slot, now flexible positioning piece enters in locating slot, so as to rise
To the effect of automatic spacing protection.
Further, position for convenience, the flexible positioning piece includes locating piece and one end in locating piece, another
Spring of the end provided with ball, and is surrounded by pulley below locating piece, being provided with cutting portion makes locating piece be embedded in and can
The chute for making pulley be slided along track.
Further, the thread on the screw mandrel is rectangle or trapezoidal or zigzag or arc or single head shape.
Further, the positioning bearing is rolling bearing or sliding bearing.
Further, the spring is outgoing is provided with fixed seat, and the ball is in fixed seat, and fixed seat energy is stretched out in part
It is enough to be rotated in fixed seat.
It is provided by the invention it is a kind of can automatic spacing protection screw pair, its is simple in construction, easy to operate, cheap,
Dependable performance and automatic spacing protective effect can be realized.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 be in the present embodiment 1 it is a kind of can automatic spacing protection screw pair structure sectional view；
Fig. 2 be in the present embodiment 2 it is a kind of can automatic spacing protection screw pair structure sectional view；
Fig. 3 is a kind of structural representation of flexible positioning piece in the present embodiment 2.
In reference：Screw mandrel 1；Outer nut 2；Inner nut 3；Helicla flute 4；Cutting portion 5；Flexible positioning piece 6；Arc groove
7；Locating slot 8；Position bearing 9；Locating piece 10；Ball 11；Spring 12；Pulley 13；Chute 14；Thread 15；Fixed seat 16.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in figure 1, the present embodiment provide it is a kind of can automatic spacing protection screw pair, including nut and screw mandrel 1, institute
State nut and be divided into outer nut 2 and inner nut 3, the outer nut 2 is set on inner nut 3, and the inner nut 3 is set in screw mandrel 1
It can move outside and on screw mandrel 1, and helicla flute 4 is provided with the inner nut 3, be provided with the end of the side of screw mandrel 1
Inclined cutting portion 5, the flexible positioning piece 6 in cutting portion 5 is provided with cutting portion 5, is provided with outer nut 2 to elasticity
Keeper 6 carries out the arc groove 7 of route guidance, and the locating slot 8 that depth ratio arc groove 7 is stretched is provided with the one end of arc groove 7,
Positioning bearing 9 is provided with inner nut 3 and the contact surface of outer nut 2.
In said structure, when helicla flute 4 rotary motion of the screw mandrel 1 along inner nut 3, inner nut 3 is up or down
It is mobile simultaneously to drive outer nut 2 to carry out straight-line displacement, when inner nut 3 is when being moved to extreme position, now in cutting portion 5
Flexible positioning piece 6 can be reached in arc groove 7, now rotate inner nut 3 again, can make the also corresponding rotation of outer nut 2 so that bullet
Property keeper 6 can be rotated in arc groove 7, once rotating to the position of locating slot 8, now flexible positioning piece 6 enters
In locating slot 8, so as to play a part of automatic spacing protection.
Embodiment 2：
As shown in Figure 2 and Figure 3, the present embodiment provide it is a kind of can automatic spacing protection screw pair general configuration and reality
Applying the identical of example 1 is, positions for convenience, and the flexible positioning piece 6 includes locating piece 10 and one end in locating piece 10,
The other end is provided with the spring 12 of ball 11, and the lower section of locating piece 10 is surrounded by pulley 13, and being provided with cutting portion 5 makes positioning
The chute 14 that block 10 is embedded in and pulley 13 can be made to be slided along track.
In said structure, when helicla flute 4 rotary motion of the screw mandrel 1 along inner nut 3, inner nut 3 is up or down
It is mobile simultaneously to drive outer nut 2 to carry out straight-line displacement, when inner nut 3 is when being moved to extreme position, now on locating piece 10
Ball 11 can reach in arc groove 7, now rotate inner nut 3 again, the also corresponding rotation of outer nut 2 can be made so that ball
11 can be rotated in arc groove 7, once rotating to the position of locating slot 8, now ball 11 is in the presence of spring 12
In locating slot 8, so as to play a part of automatic spacing protection.
Further, the thread 15 on the screw mandrel 1 is rectangle or trapezoidal or zigzag or arc or single head shape.
Further, the positioning bearing 9 is rolling bearing or sliding bearing.
Further, the spring 12 is outgoing is provided with fixed seat 16, and the ball 11 is in fixed seat 16, and part is stretched out
Fixed seat 16 can rotate in fixed seat 16.
Claims (6)
1. it is a kind of can automatic spacing protection screw pair, it is characterised in that including nut and screw mandrel (1), the nut is divided into outer
Nut (2) and inner nut (3), the outer nut (2) are set on inner nut (3), and the inner nut (3) is set in screw mandrel (1)
It can move outside and on screw mandrel (1), and helicla flute (4) is provided with the inner nut (3), it is characterised in that in screw mandrel
(1) end of side is provided with inclined cutting portion (5), is provided with cutting portion (5) flexibly positioned in cutting portion (5)
Part (6), the arc groove (7) that route guidance is carried out to flexible positioning piece (6) is provided with outer nut (2), in arc groove (7)
One end is provided with the locating slot (8) that depth ratio arc groove (7) is stretched, and positioning is provided with inner nut (3) and outer nut (2) contact surface
Bearing (9).
2. it is according to claim 1 it is a kind of can automatic spacing protection screw pair, it is characterised in that the flexible positioning piece
(6) locating piece (10) and one end are included in locating piece (10), the other end is provided with the spring (12) of ball (11), and positions
Pulley (13) is surrounded by below block (10), being provided with cutting portion (5) makes locating piece (10) embedded and can make pulley
(13) chute (14) slided along track.
3. it is according to claim 1 or 2 it is a kind of can automatic spacing protection screw pair, it is characterised in that the screw mandrel (1)
On thread (15) be rectangle or trapezoidal or zigzag or arc or single head shape.
4. it is according to claim 1 or 2 it is a kind of can automatic spacing protection screw pair, it is characterised in that the locating shaft
It is rolling bearing or sliding bearing to hold (9).
5. it is according to claim 3 it is a kind of can automatic spacing protection screw pair, it is characterised in that the positioning bearing
(9) it is rolling bearing or sliding bearing.
6. it is according to claim 2 it is a kind of can automatic spacing protection screw pair, it is characterised in that the spring (12) is outside
Go out and be provided with fixed seat (16), the ball (11) is in fixed seat (16), and part stretching fixed seat (16) can be in fixation
Rotated in seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896693.0A CN107575546A (en) | 2017-09-28 | 2017-09-28 | It is a kind of can automatic spacing protection screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896693.0A CN107575546A (en) | 2017-09-28 | 2017-09-28 | It is a kind of can automatic spacing protection screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107575546A true CN107575546A (en) | 2018-01-12 |
Family
ID=61039599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710896693.0A Pending CN107575546A (en) | 2017-09-28 | 2017-09-28 | It is a kind of can automatic spacing protection screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355188A (en) * | 2020-10-09 | 2021-02-12 | 柯香丽 | Building reinforcing bar for building is from isometric cutting equipment that advances |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228646A1 (en) * | 1982-07-31 | 1984-02-09 | Peddinghaus, Rolf, Dipl.-Ing., 5828 Ennepetal | Parallel vice with device for idle displacement of the movable clamping jaw |
| US4905533A (en) * | 1988-12-27 | 1990-03-06 | Thomson Saginaw Ball Screw Company, Inc. | Seal and scraper assembly for ball bearing screws and the like |
| CN2628808Y (en) * | 2003-05-19 | 2004-07-28 | 王秋勇 | Screw auxiliaries capable of automatic spacing protection |
| EP2772667A1 (en) * | 2011-10-24 | 2014-09-03 | NSK Ltd. | Ball screw device and dust protection member extraction tool |
| CN104325034A (en) * | 2014-10-29 | 2015-02-04 | 重庆智锐德科技有限公司 | Material grabbing hook type feeding mechanism |
-
2017
- 2017-09-28 CN CN201710896693.0A patent/CN107575546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228646A1 (en) * | 1982-07-31 | 1984-02-09 | Peddinghaus, Rolf, Dipl.-Ing., 5828 Ennepetal | Parallel vice with device for idle displacement of the movable clamping jaw |
| US4905533A (en) * | 1988-12-27 | 1990-03-06 | Thomson Saginaw Ball Screw Company, Inc. | Seal and scraper assembly for ball bearing screws and the like |
| CN2628808Y (en) * | 2003-05-19 | 2004-07-28 | 王秋勇 | Screw auxiliaries capable of automatic spacing protection |
| EP2772667A1 (en) * | 2011-10-24 | 2014-09-03 | NSK Ltd. | Ball screw device and dust protection member extraction tool |
| CN104325034A (en) * | 2014-10-29 | 2015-02-04 | 重庆智锐德科技有限公司 | Material grabbing hook type feeding mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355188A (en) * | 2020-10-09 | 2021-02-12 | 柯香丽 | Building reinforcing bar for building is from isometric cutting equipment that advances |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
|
| RJ01 | Rejection of invention patent application after publication |