CN103726736A - 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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- CN103726736A CN103726736A CN201310708469.6A CN201310708469A CN103726736A CN 103726736 A CN103726736 A CN 103726736A CN 201310708469 A CN201310708469 A CN 201310708469A CN 103726736 A CN103726736 A CN 103726736A
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- rolling pin
- auxiliary
- roller bolt
- nut
- auxiliary roller
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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
What the present invention relates to is a kind of locking device, in particular a kind of auxiliary nut that is applicable to the locking device of passive spiral door machine.
Background technology
At present, on rail vehicle many worm drive door machine application very extensive, as various vehicle doorns, shield door, civil door etc.All there is locking and the release problem of door in the door machine of all worm drive, be that worm drive door machine adopts leading screw and nut mechanism to carry out transmission to car door, and car door is after closing, screw mandrel still can be rotated, therefore only need apply external force and just door can be opened, exist certain potential safety hazard.Locking mechanism of passive spiral door machine relies on lead angle to be less than the principle of angle of friction self-locking at present, by becoming lift angle screw rod, pin self adaptation nut, simultaneously in order to realize manually close the door locking and triggering, be locked into the functions such as bit switch, need to after self adaptation nut, set up an auxiliary nut, but the friction factor of general high-abrasive material is larger, causes switch gate resistance very large.And the less material wear ability of friction factor is also less, during serious wear, can cause being locked into bit switch cannot trigger.Therefore adopt the auxiliary nut of sliding friction cannot meet the requirements such as wear-resisting and low-friction coefficient simultaneously.
Summary of the invention
Goal of the invention: the object of the invention is to overcome the deficiencies in the prior art, a kind of roller bolt formula auxiliary nut device that is applicable to passive spiral locking mechanism is provided, by the rolling friction between auxiliary roller bolt and screw mandrel, has realized simultaneously and reduce wearing and tearing and reduce the requirements such as friction factor.
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 on screw mandrel, auxiliary roller bolt frame is connected with self adaptation nut, described auxiliary roller bolt is arranged in auxiliary roller bolt frame, and auxiliary roller bolt can rotate freely in auxiliary roller bolt frame.
Operating principle of the present invention is: the auxiliary roller bolt in auxiliary roller bolt frame is inserted in the groove of screw mandrel, when the self adaptation nut of locking mechanism of passive spiral door machine moves, the axially-movable together of band dynamic auxiliary roller bolt frame, now forms rolling friction between the auxiliary roller bolt in auxiliary roller bolt frame and the sidewall of screw mandrel groove.
Beneficial effect: the present invention has the following advantages compared to existing technology, the present invention, owing to using rolling friction, is worn and torn little, and friction factor is little, simple in structure, mechanism element is few, requirement on machining accuracy is not high, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Wherein 1-self adaptation nut, 2-screw mandrel, the auxiliary roller bolt frame of 3-, 4-assist roller bolt.
The specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is implemented take technical solution of the present invention under prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprise, self adaptation nut 1, screw mandrel 2, auxiliary roller bolt frame 3, auxiliary roller bolt 4.Described self adaptation nut 1 and auxiliary roller bolt frame 3 are enclosed within on screw mandrel 2, and auxiliary roller bolt frame 3 is connected with self adaptation nut 1, and described auxiliary roller bolt 4 is arranged in auxiliary roller bolt frame 3, and auxiliary 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, when the self adaptation nut 1 of locking mechanism of passive spiral door machine moves, 3 axially-movables together of band dynamic auxiliary roller bolt frame, now form friction rolling between the auxiliary roller bolt 4 in auxiliary roller bolt frame 3 and the sidewall of screw mandrel 2 grooves.
Claims (2)
1. be applicable to the roller bolt formula auxiliary nut device of passive spiral locking mechanism, it is characterized in that: comprise 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), described auxiliary roller bolt (4) is arranged in auxiliary roller bolt frame (3), and auxiliary roller bolt (4) can rotate freely in auxiliary roller bolt frame (3).
2. the roller bolt formula auxiliary nut device that is applicable to passive spiral locking mechanism according to claim 1, is characterized in that: 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 true CN103726736A (en) | 2014-04-16 |
| CN103726736B CN103726736B (en) | 2017-01-18 |
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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 |
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| CN (1) | CN103726736B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154371A (en) * | 2016-06-06 | 2019-01-04 | 索尤若驱动有限及两合公司 | Linear actuator with the nut and screw rod that are rotatably supported in support cap |
| CN109696261A (en) * | 2018-12-28 | 2019-04-30 | 南京康尼机电股份有限公司 | A kind of rectangularity measures the device of roller bolt stress in feed screw nut |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154371A (en) * | 2016-06-06 | 2019-01-04 | 索尤若驱动有限及两合公司 | Linear actuator with the nut and screw rod that are rotatably supported in support cap |
| CN109154371B (en) * | 2016-06-06 | 2022-03-04 | 索尤若驱动有限及两合公司 | Linear drive with a nut and a spindle rotatably mounted in a bearing cover |
| CN109696261A (en) * | 2018-12-28 | 2019-04-30 | 南京康尼机电股份有限公司 | A kind of rectangularity measures the device of roller bolt stress in feed screw nut |
| 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 |
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|---|---|
| CN103726736B (en) | 2017-01-18 |
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