CN103726736B - Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism - Google Patents
Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism Download PDFInfo
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- CN103726736B CN103726736B CN201310708469.6A CN201310708469A CN103726736B CN 103726736 B CN103726736 B CN 103726736B CN 201310708469 A CN201310708469 A CN 201310708469A CN 103726736 B CN103726736 B CN 103726736B
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- auxiliary
- rolling pin
- roller bolt
- auxiliary roller
- nut
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Abstract
The invention discloses a rolling pin type auxiliary nut device adaptable to a passive spiral locking mechanism. The device comprises an adaptive nut, a screw, an auxiliary rolling pin rack and an auxiliary rolling pin. The adaptive nut and the auxiliary rolling pin rack sleeve the screw, the auxiliary rolling pin rack is connected with the adaptive nut, and the auxiliary rolling pin is arranged in the auxiliary rolling pin rack and can rotate freely. The auxiliary rolling pin in the auxiliary rolling pin rack is inserted into a groove of the screw; when the adaptive nut in the passive spiral locking mechanism moves, the auxiliary rolling pin is driven to move axially, and friction rolling is formed between the auxiliary rolling pin in the auxiliary rolling pin rack and the side wall of the groove of the screw. The rolling pin type auxiliary nut device has the advantages that rolling friction is adopted, wear is low, friction coefficient is small, structure is simple, mechanism parts are few, machining accuracy requirement is low, and maintenance is facilitated.
Description
Technical field
The present invention relates to a kind of locking device, more particularly, to a kind of locking dress being applied to passive spiral door machine
The auxiliary nut put.
Background technology
At present, on rail vehicle, many worm drive door machine is applied widely, such as various vehicle doorns, shield door, civil door
Deng.All there is locking and the unblock problem of door in the door machine of all worm drive, that is, worm drive door machine adopts leading screw and nut mechanism
Car door is driven, and car door is after closing, screw mandrel still can be rotated, and therefore only need to apply external force and just can beat door
Open, there is certain potential safety hazard.Locking mechanism of passive spiral door machine relies on lead angle to be less than angle of friction self-locking at present
Principle, pins self adaptation nut by becoming lift angle screw rod, simultaneously in order to enable to close the door manually locking and triggering is locked into bit switch
Etc. function, need to set up an auxiliary nut after self adaptation nut, but the coefficient of friction of general high-abrasive material is larger, leads
Cause switch gate resistance very big.And the less material wear ability of coefficient of friction is also less, can lead to during serious wear be locked into bit switch
Cannot trigger.Therefore wear-resisting and low-friction coefficient etc. cannot be met using the auxiliary nut of sliding friction to require simultaneously.
Content of the invention
Goal of the invention: it is an object of the invention to overcoming the deficiencies in the prior art, there is provided one kind is applied to passive spiral
The rolling pin auxiliary nut device of locking mechanism, realizes reducing by assisting the rolling friction between roller bolt and screw mandrel simultaneously
Abrasion and reduction coefficient of friction etc. require.
Technical scheme: the present invention includes self adaptation nut, screw mandrel, auxiliary roller bolt frame, auxiliary roller bolt, described self adaptation
Nut and auxiliary roller bolt frame are enclosed within screw mandrel, and auxiliary roller bolt frame is connected with self adaptation nut, described auxiliary roller bolt setting
In auxiliary roller bolt frame, auxiliary roller bolt can rotate freely in auxiliary roller bolt frame.
The operation principle of the present invention is: the auxiliary roller bolt in auxiliary roller bolt frame is inserted in the groove of screw mandrel, when passive
During the self adaptation nut motion of spiral door machine locking mechanism, band dynamic auxiliary roller bolt frame is moved axially together, and now auxiliary rolls
Form rolling friction between auxiliary roller bolt in pin frame and the side wall of screw mandrel groove.
Beneficial effect: the present invention has advantages below compared to existing technology, the present invention, due to using rolling friction, is worn and torn
Little, coefficient of friction is little, and structure is simple, mechanism element is few, requirement on machining accuracy is not high, easy to maintenance.
Brief description
Fig. 1 is the schematic diagram of the present invention.
Wherein 1- self adaptation nut, 2- screw mandrel, 3- auxiliary roller bolt frame, 4- auxiliary roller bolt.
Specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following enforcements
Example.
As shown in figure 1, the present embodiment include, self adaptation nut 1, screw mandrel 2, auxiliary roller bolt frame 3, auxiliary roller bolt 4.Institute
State self adaptation nut 1 and auxiliary roller bolt frame 3 is enclosed within screw mandrel 2, auxiliary roller bolt frame 3 is connected with self adaptation nut 1, described auxiliary
Help roller bolt 4 to be arranged in auxiliary roller bolt frame 3, and assist roller bolt 4 can rotate freely in auxiliary roller bolt frame 3.
A part for auxiliary roller bolt 4 in auxiliary roller bolt frame 3 is inserted in the groove of screw mandrel 2, works as passive spiral door machine
During self adaptation nut 1 motion of locking mechanism, band dynamic auxiliary roller bolt frame 3 is moved axially together, now in auxiliary roller bolt frame 3
Auxiliary roller bolt 4 and the side wall of screw mandrel 2 groove between formed friction rolling.
Claims (2)
1. be applied to the rolling pin auxiliary nut device of passive spiral locking mechanism it is characterised in that: include self adaptation nut
(1), screw mandrel (2), auxiliary roller bolt frame (3), auxiliary roller bolt (4), self adaptation nut (1) and auxiliary roller bolt frame (3) are enclosed within
On screw mandrel (2), auxiliary roller bolt frame (3) is connected with self adaptation nut (1), and described auxiliary roller bolt (4) is arranged on auxiliary and rolls
In pin frame (3), auxiliary roller bolt (4) can rotate freely in auxiliary roller bolt frame (3)；A part for auxiliary roller bolt (4)
It is inserted in the groove of screw mandrel (2), when self adaptation nut (1) moves, band dynamic auxiliary roller bolt frame (3) is moved axially together, auxiliary
Help formation friction rolling between roller bolt (4) and the side wall of screw mandrel (2) groove.
2. the rolling pin auxiliary nut device being applied to passive spiral locking mechanism according to claim 1, its feature
It is: auxiliary roller bolt (4) arranges at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708469.6A CN103726736B (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708469.6A CN103726736B (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103726736A CN103726736A (en) | 2014-04-16 |
| CN103726736B true CN103726736B (en) | 2017-01-18 |
Family
ID=50451006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310708469.6A Active CN103726736B (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103726736B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016006736B4 (en) * | 2016-06-06 | 2020-10-29 | Sew-Eurodrive Gmbh & Co Kg | Linear drive with a spindle nut and spindle rotatably mounted in a bearing plate |
| CN109696261B (en) * | 2018-12-28 | 2024-03-08 | 南京康尼机电股份有限公司 | Device for measuring stress of rolling pin in screw nut by right angle method |
| CN114512785A (en) * | 2022-02-22 | 2022-05-17 | 成都老鹰信息技术有限公司 | Unmanned aerial vehicle disturbs rifle antenna structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341598A (en) * | 1992-05-08 | 1994-08-30 | Mark Iv Transportation Products Corporation | Power door drive and door support having motor operated locks |
| JPH10121845A (en) * | 1996-10-16 | 1998-05-12 | Ikuo Sekiya | Movable body drive mechanism of ball clutch |
| CN2775399Y (en) * | 2005-01-21 | 2006-04-26 | 深圳智泰精密仪器有限公司 | Toothless screw friction driving mechanism |
| CN2813831Y (en) * | 2005-08-18 | 2006-09-06 | 南京康尼机电新技术有限公司 | Locking device for vehicle door system |
| CN1948686A (en) * | 2006-10-18 | 2007-04-18 | 南京康尼机电新技术有限公司 | Locking mechanism of passive spiral door machine |
| CN203669601U (en) * | 2013-12-20 | 2014-06-25 | 南京康尼机电股份有限公司 | Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism |
-
2013
- 2013-12-20 CN CN201310708469.6A patent/CN103726736B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341598A (en) * | 1992-05-08 | 1994-08-30 | Mark Iv Transportation Products Corporation | Power door drive and door support having motor operated locks |
| JPH10121845A (en) * | 1996-10-16 | 1998-05-12 | Ikuo Sekiya | Movable body drive mechanism of ball clutch |
| CN2775399Y (en) * | 2005-01-21 | 2006-04-26 | 深圳智泰精密仪器有限公司 | Toothless screw friction driving mechanism |
| CN2813831Y (en) * | 2005-08-18 | 2006-09-06 | 南京康尼机电新技术有限公司 | Locking device for vehicle door system |
| CN1948686A (en) * | 2006-10-18 | 2007-04-18 | 南京康尼机电新技术有限公司 | Locking mechanism of passive spiral door machine |
| CN203669601U (en) * | 2013-12-20 | 2014-06-25 | 南京康尼机电股份有限公司 | Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103726736A (en) | 2014-04-16 |
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