CN103661971A - Power failure self-locking device locking automatically in any position - Google Patents
Power failure self-locking device locking automatically in any position Download PDFInfo
- Publication number
- CN103661971A CN103661971A CN201310711894.0A CN201310711894A CN103661971A CN 103661971 A CN103661971 A CN 103661971A CN 201310711894 A CN201310711894 A CN 201310711894A CN 103661971 A CN103661971 A CN 103661971A
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- friction disc
- self
- rotating shaft
- friction disk
- locking
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Abstract
The invention relates to a power failure self-locking device locking automatically in any position. An outer frame is fixed to a frame, an electromagnetic coil is fixed to the outer frame, the outer frame is connected with a rotary shaft through a bearing, a shaft cap is fixedly connected with the rotary shaft through a pin, the rotary shaft is sleeved with a friction disk in an idle mode, the friction disk is matched with the shaft cap, the lower end of a guide pin is fixed to the outer frame, the upper end of the guide pin is assembled in a guide hole of the friction disk in a spaced mode, and thus the friction disk can only horizontally move along the guide pin but cannot rotate. The rotary shaft is sleeved with a reset spring, the lower end of the reset spring is positioned through a ledge of the rotary shaft, and the upper end of the reset spring abuts against the lower end of the friction disk. When external force does not exist, the friction disk makes contact with the shaft cap so that the shaft cap cannot rotate. The power failure self-locking device can lock in any position in power failure, the frame can be prevented from colliding to the limit so as to be limited, and therefore measurement accuracy of devices cannot be affected, and the devices cannot be damaged either.
Description
Technical field
The present invention relates to a kind of device that cuts off self-lock, particularly can be applied to the device that cuts off self-lock that aircraft pod etc. requires optional position self-locking.
Background technology
In order to realize the aircraft pod device that cuts off self-lock at an arbitrary position, need to use gear.Driving gear and axle system are connected, and driven gear is connected with the device that cuts off self-lock.Aircraft pod is especially when aircraft commutates, and due to inertia, gondola internal components still can continue to rotate along a certain axle, and particularly eccentric structure is rotated more obviously, and it is spacing that device can hit the limit with its framework that is connected.Often clash into and can reduce device service life, particularly high precision device, also can affect survey precision, even damage device, thereby affected the normal work of whole system.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of device that cuts off self-lock at an arbitrary position, it can be under powering-off state, and optional position locking prevents that framework from hitting the limit spacing, therefore can not affect device survey precision, also can not damage device.
The present invention solves the technical scheme that its technical matters takes: housing is fixed on framework, and housing is fixed on magnet coil on housing by bearing, and axle cap is connected by pin and rotating shaft, and the friction disc empty set coordinating with axle cap is in rotating shaft.In rotating shaft, cover has retracing spring, and the lower end of retracing spring is located by the shoulder of rotating shaft, and upper end withstands on the lower end of friction disc, and when without external force, friction disc contacts with axle cap, and axle cap can not be rotated
When switching on to magnet coil, housing produces magnetic-adsorption friction disc, makes friction disc depart from axle cap; After power-off, friction disc contacts with axle cap by spring force, and friction disc is all processed with identical groove with axle cap contact surface, after contact, by groove, is meshed and can be reached self-locking effect.
The present invention has following advantages: power-off at any time, self-locking at any time, can not affect device precision and service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is cutaway view of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes magnet coil 1, rotating shaft 2, axle cap 3, friction disc 4, housing 5, pilot hole 6, retracing spring 7, back-up ring 8, guide finger 10, back-up ring 11, pin 12, bearing 13.Housing 5 is fixed on framework 9, and housing 9 is fixed on magnet coil 1 on housing 5 by bearing 13, and axle cap 3 is connected by pin 12 and rotating shaft 2, and friction disc 4 empty sets that coordinate with axle cap 3 are in rotating shaft 2.In rotating shaft 2, cover has retracing spring 7, and the lower end of retracing spring 7 is located by the shoulder of rotating shaft 2, and upper end withstands on the lower end of friction disc 4, and when without external force, friction disc 4 contacts with axle cap 3, and axle cap 3 can not be rotated.
The lower end of the fixing guide finger 10 parallel with rotating shaft 2 on described housing 5, the upper gap ground of guide finger 10 inserts in the pilot hole 6 of friction disc 4, and friction disc 4 can only, along guide finger 10 translations, can not be rotated.
In described rotating shaft 2, have feather key (not shown in FIG.), friction disc 4 is enclosed within on the feather key of rotating shaft 2, and friction disc 4 can only, along guide finger 10 translations, can not be rotated.
When giving magnet coil 1 energising, the magnetic-adsorption friction disc 4 of generation, makes friction disc 4 depart from axle cap 3; After power-off, friction disc 4 contacts with axle cap 3 by retracing spring 7, and friction disc 4 is all processed with identical groove with axle cap 3 contact surfaces, after contact, by groove, is meshed and can be reached self-locking effect.
Claims (3)
1. the device that cuts off self-lock of an optional position self-locking, it is characterized in that: housing (5) is fixed on framework (9), housing (9) is fixed on magnet coil (1) on housing (5) by bearing (13), axle cap (3) is connected by pin (12) and rotating shaft (2), and friction disc (4) empty set coordinating with axle cap (3) is in rotating shaft (2).The upper cover of rotating shaft (2) has retracing spring (7), and the lower end of retracing spring (7) is by the shoulder location of rotating shaft (2), and upper end withstands on the lower end of friction disc (4), and when without external force, friction disc (4) contacts with axle cap (3), and axle cap (3) can not be rotated.
2. the device that cuts off self-lock of optional position according to claim 1 self-locking, it is characterized in that: the lower end of the upper fixing guide finger (10) parallel with rotating shaft (2) of described housing (5), the upper gap ground of guide finger (10) inserts in the pilot hole (6) of friction disc (4), friction disc (4) can only, along guide finger (10) translation, can not be rotated.
3. the device that cuts off self-lock of optional position according to claim 1 self-locking, it is characterized in that: described rotating shaft has feather key on (2), friction disc (4) is enclosed within on the feather key of rotating shaft (2), and friction disc (4) can only, along guide finger (10) translation, can not be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310711894.0A CN103661971A (en) | 2013-12-20 | 2013-12-20 | Power failure self-locking device locking automatically in any position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310711894.0A CN103661971A (en) | 2013-12-20 | 2013-12-20 | Power failure self-locking device locking automatically in any position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103661971A true CN103661971A (en) | 2014-03-26 |
Family
ID=50300970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310711894.0A Pending CN103661971A (en) | 2013-12-20 | 2013-12-20 | Power failure self-locking device locking automatically in any position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103661971A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173890A (en) * | 2015-07-31 | 2015-12-23 | 中国矿业大学 | Reel reversing self-locking device for reel type sprinkler |
| CN109351237A (en) * | 2018-11-13 | 2019-02-19 | 李宝超 | A kind of energy saving mixing plant for liquid blending |
| CN109674617A (en) * | 2019-01-29 | 2019-04-26 | 哈工大机器人（合肥）国际创新研究院 | A kind of compact main axle structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201049870Y (en) * | 2007-06-18 | 2008-04-23 | 毕鉴华 | Braking drum safety device |
| CN201284204Y (en) * | 2008-06-04 | 2009-08-05 | 翟贵才 | Transmission braking system of self locking electric hoisting machine |
| DE202013100948U1 (en) * | 2013-02-25 | 2013-04-09 | Xiu-Feng Chen | Improved winch brake construction |
| CN203146738U (en) * | 2013-03-15 | 2013-08-21 | 哈尔滨东安发动机（集团）有限公司 | Locking device of ball screw |
-
2013
- 2013-12-20 CN CN201310711894.0A patent/CN103661971A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201049870Y (en) * | 2007-06-18 | 2008-04-23 | 毕鉴华 | Braking drum safety device |
| CN201284204Y (en) * | 2008-06-04 | 2009-08-05 | 翟贵才 | Transmission braking system of self locking electric hoisting machine |
| DE202013100948U1 (en) * | 2013-02-25 | 2013-04-09 | Xiu-Feng Chen | Improved winch brake construction |
| CN203146738U (en) * | 2013-03-15 | 2013-08-21 | 哈尔滨东安发动机（集团）有限公司 | Locking device of ball screw |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173890A (en) * | 2015-07-31 | 2015-12-23 | 中国矿业大学 | Reel reversing self-locking device for reel type sprinkler |
| CN109351237A (en) * | 2018-11-13 | 2019-02-19 | 李宝超 | A kind of energy saving mixing plant for liquid blending |
| CN109351237B (en) * | 2018-11-13 | 2021-06-18 | 苏州申茂环保科技有限公司 | A energy-conserving agitated vessel for liquid mixing |
| CN109674617A (en) * | 2019-01-29 | 2019-04-26 | 哈工大机器人（合肥）国际创新研究院 | A kind of compact main axle structure |
| CN109674617B (en) * | 2019-01-29 | 2024-03-26 | 合肥哈工力训智能科技有限公司 | Compact main shaft structure |
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Application publication date: 20140326 |