CN203669601U - Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism - Google Patents
Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism Download PDFInfo
- Publication number
- CN203669601U CN203669601U CN201320846088.XU CN201320846088U CN203669601U CN 203669601 U CN203669601 U CN 203669601U CN 201320846088 U CN201320846088 U CN 201320846088U CN 203669601 U CN203669601 U CN 203669601U
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- China
- Prior art keywords
- rolling pin
- auxiliary
- nut
- roller bolt
- locking mechanism
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- 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.)
- Expired - Lifetime
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- 238000005096 rolling process Methods 0.000 title abstract description 22
- 230000006978 adaptation Effects 0.000 claims description 12
- 238000003754 machining Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Abstract
The utility model discloses a rolling pin type auxiliary nut device applicable to a passive spiral locking mechanism. The rolling pin type auxiliary nut device comprises a self-adaptation nut, a lead screw, an auxiliary rolling pin frame and an auxiliary rolling pin. The lead screw is sleeved with the self-adaptation nut and the auxiliary rolling pin frame. The auxiliary rolling pin frame is connected with the self-adaptation nut. The auxiliary rolling pin is arranged inside the auxiliary rolling pin frame, and can freely rotate inside the auxiliary rolling pin frame. The auxiliary rolling pin in the auxiliary rolling pin frame is inserted into a groove of the lead screw. When the self-adaptation nut of the passive spiral locking mechanism moves, the auxiliary rolling pin frame is driven to axially move together with the auxiliary rolling pin frame, and at the moment, friction rolling is formed between the auxiliary rolling pin in the auxiliary rolling pin frame and the side wall of the groove of the lead screw. According to the rolling pin type auxiliary nut device applicable to the passive spiral locking mechanism, due to the fact that rolling friction is used, abrasion is small, the friction coefficient is small, the structure is simple, the number of structural parts is small, the requirement for machining precision is not high, and maintenance is convenient.
Description
Technical field
The utility model relates to a kind of locking device, in particular a kind of auxiliary nut of the locking device that is applicable to 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, pin self adaptation nut by becoming lift angle screw rod, simultaneously be locked into the functions such as bit switch in order to realize manually close the door locking and triggering, 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, when 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.
Utility model content
Utility model object: the purpose of this utility model 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, has realized simultaneously and reduce wearing and tearing and reduce the requirements such as friction factor by the rolling friction between auxiliary roller bolt and screw mandrel.
Technical scheme: the utility model comprises 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.
Beneficial effect: the utility model has the following advantages compared to existing technology, the utility model, owing to using rolling friction, weares and teares little, and friction factor is little, simple in structure, mechanism element is few, requirement on machining accuracy is not high, easy to maintenance.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under taking technical solutions of the utility model as prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model 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, in the time that 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 by 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), 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 |
|---|---|---|---|
| CN201320846088.XU CN203669601U (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846088.XU CN203669601U (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669601U true CN203669601U (en) | 2014-06-25 |
Family
ID=50965913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320846088.XU Expired - Lifetime CN203669601U (en) | 2013-12-20 | 2013-12-20 | Rolling pin type auxiliary nut device applicable to passive spiral locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203669601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726736A (en) * | 2013-12-20 | 2014-04-16 | 南京康尼机电股份有限公司 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
-
2013
- 2013-12-20 CN CN201320846088.XU patent/CN203669601U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726736A (en) * | 2013-12-20 | 2014-04-16 | 南京康尼机电股份有限公司 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
| CN103726736B (en) * | 2013-12-20 | 2017-01-18 | 南京康尼机电股份有限公司 | Rolling pin type auxiliary nut device adaptable to passive spiral locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |