CN103935928A - Electromagnetic brake with air pressure damping structure - Google Patents
Electromagnetic brake with air pressure damping structure Download PDFInfo
- Publication number
- CN103935928A CN103935928A CN201410176833.3A CN201410176833A CN103935928A CN 103935928 A CN103935928 A CN 103935928A CN 201410176833 A CN201410176833 A CN 201410176833A CN 103935928 A CN103935928 A CN 103935928A
- Authority
- CN
- China
- Prior art keywords
- armature
- iron core
- damping structure
- air
- pressure damping
- 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.)
- Granted
Links
Landscapes
- Braking Arrangements (AREA)
- Electromagnets (AREA)
Abstract
An electromagnetic brake with an air pressure damping structure comprises an iron core and an armature, and further comprises a friction plate which is in friction fit with the armature. A spring which ejects up the armature and a coil which enables the armature to be attracted to the iron core are arranged in the iron core. A plurality of plug cores are arranged on the armature. A rubber plug is wrapped on the end of each plug core. A plurality of blind holes matched with the plug cores are formed in the iron core. When the coil is not powered on, the spring tightly presses the armature and the friction plate together, a motor can not rotate, and a gap 0.45 mm wide exists between the armature and the iron core. When the coil is powered on, the armature is folded together with the iron core and gets away from the friction plate, and the motor can rotate. The electromagnetic brake has the advantages of being simple in structure, low in failure rate, low in noise attack, long in service life, high in response speed, good in brake safety performance and the like.
Description
Technical field
The present invention relates to drg field, especially one is applicable to elevator industry, with the magnet stopper of air-pressure damping structure.
Background technology
At present, magnet stopper is widely used in elevator industry, but existing magnet stopper more or less can exist the problems such as complex structure, fault rate is high, noise impacts greatly, the life-span is short, speed of response is slow, brake safe performance is poor.For example Chinese patent CN103058091A discloses a kind of magnet stopper, the invention discloses magnet stopper, comprise electromagnet 1, armature 8, slipper 10, brake facing 11, slipper 10 is fixedly connected with brake facing 11, and the lateral surface of brake facing 11 is the arc shape of indent; Electromagnet 1 is connected by center bolt 7 with armature 8, and electromagnet 1 is affixed with the first side of armature 8; Armature arranges elastic recovery mechanism, and elastic recovery mechanism presses to slipper 10 the second side of armature 8; Armature 8 is fastenedly connected an axis of guide 13; Slipper 10 parts are placed on outside the axis of guide 13; Armature 8 is threaded connection adjustable bolt 5, and the end cap portion of adjustable bolt 5 stretches into adjustment hole the free-running fit of slipper 10, and the through hole of electromagnet 1 is rectified to and can be stretched into another of adjustable bolt 5; The in-built elastic element 4 of through hole of electromagnet 1, elastic element 4 produces outside application force to armature 8.The present invention is brake facing assembly and armature separate design rotatable certain angle, for contacting between self-regulation and brake wheel.Its structure is comparatively complicated, and unresolved noise impacts large defect.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of magnet stopper with air-pressure damping structure, can reduce the impact between armature and iron core, thereby reduces noise, increases the service life.Further, can improve the reliability of single unit system.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of magnet stopper with air-pressure damping structure, comprise iron core and armature, also be provided with the friction lining that forms frictional fit with armature, in iron core, be provided with the spring that armature is upspring, be also provided with the coil that makes armature be adsorbed onto iron core, on armature, be provided with multiple plug cores, the termination of plug core is coated with rubber plug, is provided with multiple blind holes that match with plug core on iron core.
Described blind hole roughness is Ra15 ~ Ra100 μ m.
Described blind hole is boring.
There is multi-ring annular projection on described rubber plug surface.
Also be provided with spacing cover, spacing cover is fixedly connected with iron core through armature, described spacing cover and armature bearing fit.
Spacing cover outer wall is provided with multiple rubber rings.
Described plug core is connected with armature by screw thread, and plug core middle part is provided with the nuts structure of being convenient to pull.
Preferably, the spacing between armature and iron core is 0.4 ~ 0.8mm.
Described iron core and armature are two groups, and friction lining with matching is one group.
Described coil is oval.
A kind of magnet stopper with air-pressure damping structure provided by the invention, by the cooperation between the plug core and the blind hole that arrange, thereby plays the effect of buffering, is beneficial to reduce noise.Because the viscosity of air is much lower compared with fluid, therefore the also scheme of creationary employing boring making blind hole of the present invention, utilize roughness of surface that Drilling operation increases as flame diversion trough, thereby without additional processing flame diversion trough, and the structure of the rubber plug adopting, the requirement of wanting for precision also reduces.
And drg in the gap of when work and armature generally between 0-0.5mm, when for the first time armature together with iron core assembly time, rubber plug can shorten very thin one deck into the air pressure in whole blind hole, and the air pressure in this time is very large, may also can affect the electromagnetic force of electromagnet.But because the present invention is not strict with the roughness of surface of cylindrical hole, its sealing property can be not ideal yet, and generally in dozens of minutes or after several hours, the air in air layer can spill lentamente, until inside and outside differential pressure is not very large.When the closure of switching on afterwards, the air in air layer further can be compressed, because this space can not be by moment boil down to zero, thus do not worry armature can and iron core collide and make a noise, after tested, its noise reduction reaches needs of expected design.
In preferred structure, on magnet stopper, there are two groups of iron cores and armature structure, prevent wherein one group of group iron core and armature et out of order and safety misadventure occurs, improved safety performance.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is overall perspective view of the present invention.
Fig. 2 is the perspective view of armature in the present invention.
Fig. 3 is the perspective view of iron core in the present invention.
Fig. 4 is the cross-sectional schematic of iron core and armature structure in the present invention.
Fig. 5 is the perspective view of spacing cover in the present invention.
Fig. 6 is the perspective view of filling in core in the present invention.
In figure: spacing cover 1, friction lining 2, armature 3, iron core 4, spring 5, rubber plug 6, coil 7, plug core 8, rubber ring 9, blind hole 10.
Detailed description of the invention
In Fig. 1 ~ 6, a kind of magnet stopper with air-pressure damping structure, comprise iron core 4 and armature 3, also be provided with the friction lining 2 that forms frictional fit with armature 3, in iron core 4, be provided with the spring 5 that armature 3 is upspring, be also provided with the coil 7 that makes armature 3 be adsorbed onto iron core 4, on armature 3, be provided with multiple plug cores 8, the termination of plug core 8 is coated with rubber plug 6, is provided with multiple blind holes 10 that match with plug core 8 on iron core 4.
In Fig. 1, the drg in this example is closed type drg, and friction lining 2 is fixedly connected with motor shaft, and in the time of coil 7 no power, spring 5 compresses armature 3 and friction lining 2, and motor cannot rotate.Between described armature 3 and iron core 4, there is the gap of 0.4 ~ 0.8mm, preferably the gap of 0.45mm.
In the time that coil 7 is switched on, armature 3 and iron core 4 closures, unclamp with friction lining 2, and motor is rotatable.The plug core 8 arranging and the combination of blind hole 10, at the interior formation confined space of blind hole 10, in the time of arrester close, the air pressure in confined space plays buffer action, reduces noise.
Preferably, described blind hole 10 roughnesss are Ra15 ~ Ra100 μ m.Further preferred, described blind hole 10 is boring.The present invention adopts higher roughness, in reducing difficulty of processing, also can be extra flame diversion trough is set.
Preferably, rubber plug 6 sintering are in the termination of plug core 8, and there is multi-ring annular projection on described rubber plug 6 surfaces.Structure thus, plays the effect of sealing, and annular protrusion can realize self compensation, not high for the accuracy requirement of plug core 8, is convenient to processing and assembling.
Preferred as in Fig. 1 ~ 5, be also provided with spacing cover 1, spacing cover 1 is fixedly connected with iron core 4 through armature 3, described spacing cover 1 and armature 3 bearing fits.The spacing cover 1 arranging can play the effect of guiding.Further preferred as in Fig. 5, spacing is overlapped 1 outer wall and is provided with multiple rubber rings 9.The rubber ring 9 arranging plays increase friction force, reduces the effect of impact.
Preferred as in Fig. 2,4,6, described plug core 8 is connected with armature 3 by screw thread, and plug core 8 middle parts are provided with the nuts structure of being convenient to pull.Structure thus, is convenient to install.
Further preferred as in Fig. 1, described iron core 4 and armature 3 are two groups, and friction lining 2 with matching is one group.Structure thus, has improved safety with Redundancy Design, prevents one of them electromagnet et out of order and safety misadventure occurs, and described coil 7 is oval, so that be contained in the rectangular iron core 4 of two compositions.
Claims (10)
1. the magnet stopper with air-pressure damping structure, comprise iron core (4) and armature (3), also be provided with the friction lining (2) that forms frictional fit with armature (3), in iron core (4), be provided with the spring (5) that armature (3) is upspring, also be provided with the coil (7) that makes armature (3) be adsorbed onto iron core (4), it is characterized in that: on armature (3), be provided with multiple plug cores (8), the termination of plug core (8) is coated with rubber plug (6), is provided with multiple blind holes (10) that match with plug core (8) on iron core (4).
2. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: described blind hole (10) roughness is Ra15 ~ Ra100 μ m.
3. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: described blind hole (10) is boring.
4. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: there is multi-ring annular projection on described rubber plug (6) surface.
5. a kind of magnet stopper with air-pressure damping structure according to claim 1, it is characterized in that: be also provided with spacing cover (1), spacing cover (1) is fixedly connected with iron core (4) through armature (3), described spacing cover (1) and armature (3) bearing fit.
6. a kind of magnet stopper with air-pressure damping structure according to claim 5, is characterized in that: spacing cover (1) outer wall is provided with multiple rubber rings (9).
7. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: described plug core (8) is connected with armature (3) by screw thread, and plug core (8) middle part is provided with the nuts structure of being convenient to pull.
8. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: the spacing between armature (3) and iron core (4) is 0.4 ~ 0.8mm.
9. a kind of magnet stopper with air-pressure damping structure according to claim 1, is characterized in that: described iron core (4) and armature (3) are two groups, and friction lining with matching (2) is one group.
10. a kind of magnet stopper with air-pressure damping structure according to claim 9, is characterized in that: described coil (7) is for oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176833.3A CN103935928B (en) | 2014-04-29 | 2014-04-29 | With the magnet stopper of air-pressure damping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176833.3A CN103935928B (en) | 2014-04-29 | 2014-04-29 | With the magnet stopper of air-pressure damping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103935928A true CN103935928A (en) | 2014-07-23 |
| CN103935928B CN103935928B (en) | 2016-03-16 |
Family
ID=51183858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410176833.3A Expired - Fee Related CN103935928B (en) | 2014-04-29 | 2014-04-29 | With the magnet stopper of air-pressure damping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103935928B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052584A (en) * | 2004-11-01 | 2007-10-10 | 奥蒂斯电梯公司 | Disk brake of elevator having damping |
| CN201525729U (en) * | 2009-06-29 | 2010-07-14 | 浙江西子富沃德电机有限公司 | Electromagnetic stacking type brake |
| CN201647911U (en) * | 2010-05-06 | 2010-11-24 | 苏州通润驱动设备股份有限公司 | Anti-friction noise reduction structure of disc brake |
| CN201990426U (en) * | 2010-03-23 | 2011-09-28 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| WO2013186867A1 (en) * | 2012-06-13 | 2013-12-19 | 株式会社日立製作所 | Electromagnetic brake release device for elevators |
| CN203794537U (en) * | 2014-04-29 | 2014-08-27 | 三峡大学 | Electromagnetic brake with air pressure damping structure |
-
2014
- 2014-04-29 CN CN201410176833.3A patent/CN103935928B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052584A (en) * | 2004-11-01 | 2007-10-10 | 奥蒂斯电梯公司 | Disk brake of elevator having damping |
| CN201525729U (en) * | 2009-06-29 | 2010-07-14 | 浙江西子富沃德电机有限公司 | Electromagnetic stacking type brake |
| CN201990426U (en) * | 2010-03-23 | 2011-09-28 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| CN201647911U (en) * | 2010-05-06 | 2010-11-24 | 苏州通润驱动设备股份有限公司 | Anti-friction noise reduction structure of disc brake |
| WO2013186867A1 (en) * | 2012-06-13 | 2013-12-19 | 株式会社日立製作所 | Electromagnetic brake release device for elevators |
| CN203794537U (en) * | 2014-04-29 | 2014-08-27 | 三峡大学 | Electromagnetic brake with air pressure damping structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103935928B (en) | 2016-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203670781U (en) | Crystallization-prevention double-end-face sealing structure | |
| US20170098990A1 (en) | Self-alignment Protection Device for Permanent-magnet Coupling | |
| CN203794537U (en) | Electromagnetic brake with air pressure damping structure | |
| CN103994890A (en) | Swing wear life test clamp of joint bearing | |
| CN102979784B (en) | A kind of hydraulic locking mechanism | |
| CN106763306A (en) | A kind of electromagnetic brake with buffer structure | |
| CN201932870U (en) | Block type brake of elevator | |
| CN202659775U (en) | Pneumatic caliper disk brake | |
| CN103935928A (en) | Electromagnetic brake with air pressure damping structure | |
| CN102319861B (en) | Electromagnetic riveter driving head | |
| CN102966684A (en) | Rotation braking device of tower crane | |
| CN103123884A (en) | Contact spring device | |
| CN110601501B (en) | Torque-limiting permanent magnet coupling | |
| CN105318019A (en) | Dual-broken-shaft type high-performance butterfly valve | |
| CN103912609B (en) | A kind of snap-in electromagnetic brake | |
| CN201568480U (en) | Silent type dead electromagnet brake | |
| CN202996623U (en) | Swing-type oil buffer for breaker | |
| CN202529686U (en) | Double-pushing electromagnet for elevator traction machine | |
| CN103104741B (en) | Pneumatic thin film performing mechanism with built-in type anti-rotating device | |
| CN104358813B (en) | A kind of pressure mounting of the spring component and the spring assembly using the press-loading apparatus | |
| CN201437830U (en) | Automatic spacing tracking electromagnetic brake | |
| CN110388391B (en) | Roller type overrunning clutch | |
| CN203682810U (en) | Disk brake for lift traction machine | |
| CN205773042U (en) | Electromagnetic brake | |
| CN201047257Y (en) | Anti-drop device for screw pump sucker rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |