CN1636858A - Electromagnetic braking device - Google Patents
Electromagnetic braking device Download PDFInfo
- Publication number
- CN1636858A CN1636858A CN 200410068719 CN200410068719A CN1636858A CN 1636858 A CN1636858 A CN 1636858A CN 200410068719 CN200410068719 CN 200410068719 CN 200410068719 A CN200410068719 A CN 200410068719A CN 1636858 A CN1636858 A CN 1636858A
- Authority
- CN
- China
- Prior art keywords
- armature
- iron core
- braking device
- disk component
- electro
- 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
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
An electromagnetic braking device is disclosed. A brake pad 7b is connected with an armature 3 mounted between an iron core 1 incorporating an electromagnetic coil 2, and a disc 8 through a rod 5, a brake spring 11 is mounted between the armature 3 and the iron core 1, a cushioning material 10 composed of rubber is mounted in a state of being compressed at all times, the armature 3 is moved to a disc 8 side by spring force of the brake spring 11, the vibration of the armature 3 is inhibited by the cushioning material 10 when the brake pad 7b collides with the disc 8 to reduce the collision noise in releasing, further when the armature 3 is moved to an iron core 1 side by electromagnetic force generated from the electromagnetic coil 2 in opening, a moving speed of the armature 3 is reduced by the cushioning material 10, and the energy in collision of the armature 3 with the iron core 1 is absorbed by the cushioning material 10 to reduce the collision noise in opening.
Description
Technical field
The present invention relates to electro-magnetic braking device, relating in particular to a kind of being suitable for will be applied to by the formed braking force of spring force on the braking object, and removes the electro-magnetic braking device that is applied to the braking force on the braking object by electromagnetic force.
Background technology
As drgs such as elevator hoists, known have a disc type electro-magnetic braking device.The following structure of the general employing of this disc type electro-magnetic braking device, promptly, when discharging (glancing impact), the spring force that retarding spring is produced puts on the armature as braking force, by pushing so that disk component stops the rotation, on the other hand towards disk component with armature bonded assembly brake pad, when open (during starting), make the magnet coil energising and produce electromagnetic force, and armature is attracted to core side, thereby brake pad is separated with disk component by this electromagnetic force by magnet coil.
, in this disc type electro-magnetic braking device, can produce strike note during by electromagnetic attracting force open, and disappear at electromagnetic force, when the release of disk component side shifting, also can produce strike note under the effect of armature at spring force at armature.
In order to relax the strike note that glancing impact produces, proposed between armature and brake pad, to insert elastomeric scheme (with reference to patent documentation 1).
In addition, the strike note that is produced when open in order to relax has proposed between armature and iron core buffer unit to be set, and makes the collision of armature and buffer unit to slow down, thereafter, and the scheme (with reference to patent documentation 2) that armature and iron core are collided.
[patent documentation 1] open patent 2003-184919 of Japan communique (the 2nd page to the 3rd page, Fig. 1)
The flat 8-73143 communique of [patent documentation 2] Japan's open patent (the 2nd page to the 3rd page, Fig. 1 to Fig. 3)
In the former method of above-mentioned background technology, in order when open, between brake pad and disk component, to guarantee to make expectation to elastomeric distortion in advance in suitable space, and set bigger armature stroke.For this reason, be difficult to relax the strike note that is produced when open, and also be difficult to whole drg is carried out miniaturization.
And in the latter's method, though the strike note that is produced can suppress open the time, the strike note that is produced in the time of can not reducing release.
That is the above-mentioned conventional art strike note that all can not reduce when open simultaneously and be taken place when discharging.
Summary of the invention
The objective of the invention is to reduce simultaneously when open and strike note that when release is taken place.
In order to address the above problem, in electro-magnetic braking device of the present invention, the iron core that is built-in with magnet coil and and the armature that disposes in opposite directions of iron core between insert retarding spring, and insert the buffer unit that is in compressive state, will be when described magnet coil be in the release of non-excited state (no power state) (glancing impact) spring force of producing by described retarding spring, be applied on the armature as braking force, push brake pad to disk component, the vibration of the caused armature of bump when contacting with disk component by buffer unit inhibition brake pad, and absorb the strike note that produces when discharging by buffer unit, in addition, when magnet coil is in excited state ("on" position), rely on electromagnetic force make armature overcome retarding spring spring force and in the process that core side moves, rely on the elastic force of buffer unit that armature is slowed down, reduce the strike note that is produced when armature is attracted by iron core by buffer unit.
(invention effect)
According to the present invention, the strike note that can reduce when open and be taken place when discharging.
Description of drawings
Fig. 1 is the cutaway view of the electro-magnetic braking device main portion in one embodiment of the invention.
Fig. 2 is the birds-eye view of iron core.
Fig. 3 is the birds-eye view of other embodiment of expression iron core.
The specific embodiment
Below, with reference to the accompanying drawings one embodiment of the invention are described.Fig. 1 is the longitudinal sectional view of the electro-magnetic braking device main portion in one embodiment of the invention.In Fig. 1, electro-magnetic braking device, the brake equipment that for example can be used as elevator hoist uses, and has the iron core 1 and the armature 3 of built-in electromagnetic coil 2, and armature 3 is set between the disk component 8 and iron core 1 that is connected on the winch pulley (not shown).
As shown in Figure 2, iron core 1 is formed discoid, its central part is formed with through hole 1a, be formed with hole (groove) 1b that is used to hold magnet coil 2 in the outside of through hole 1a, a plurality ofly hole (groove) 1c that buffer unit uses be set and a plurality of the outside that hole (groove) 1d that retarding spring uses along the circumferential direction disperses to be formed on hole 1b respectively be set.In being formed circular hole 1b, accommodate magnet coil 2, in each hole 1c, be provided with the distolateral of buffer unit 10, in each hole 1d, be provided with the distolateral of retarding spring 11.In addition, on iron core 1 and relative face armature 3, dispose and be formed circular copper dividing plate 9, simultaneously, be fixed with the bolt 4 that moves in order to guiding armature 3 in the outside of dividing plate 9.
Each buffer unit 10 as elastic body, for example forms cylindrical shape by rubber, and is arranged between armature 3 and the iron core 1 with the state that always is in by compression.
Each retarding spring 11 when magnet coil 2 is in the release of non-excited state (no power state) (glancing impact), is applied to spring force on the armature 3 as braking force, makes armature 3 towards disk component 8 side shiftings; And when magnet coil 2 is in excited state ("on" position) open (during starting), when the electromagnetic force that is produced because of magnet coil 2 at armature 3 is held by iron core 1, be compressed along with moving of armature 3.At this moment, the axial spring power of retarding spring 11 is set greater than the axial elasticity power of buffer unit 10.
In addition, on the face relative that is formed discoid armature 3, be connected with a pair of bar 5 (there is shown one of them bar), be connected with brake pad 7b at the front end of this bar 5 with disk component 8.Brake pad 7b is relative to brake pad 7a setting, is provided with disk component 8 therebetween, and brake pad 7a is fixed on the main body 6.Main body 6 is set in freely the mode of can slightly shaking on the pedestal of motor of being fixed for driving winch etc.Armature 3 is along the axial setting of bar 5, can freely come and go to move, and rely on electromagnetic force that magnet coil 2 produced towards iron core 1 side shifting, when removing electromagnetic force, relies on spring force that retarding spring 11 produced towards disk component 8 side shiftings.At this moment, armature 3 moves by bolt 4 guiding of inserting in the through hole 3a.
Below, the action of (during starting) describes when opening with regard to electro-magnetic braking device.Make magnet coil 2 energising, when magnet coil 2 became excited state ("on" position), magnet coil 2 produced electromagnetic forcees, and armature 3 overcomes spring force that retarding spring 11 produces and to iron core 1 side shifting, and was held by iron core 1.At this moment, because of brake pad 7b separates with disk component 8,, brake disarm state thereby form so disk component 8 frees from seizing on both sides by the arms under the pressure of brake pad 7a and brake pad 7b.At armature 3 in the process of iron core 1 side shifting, buffer unit 10 is further compressed, so the moving velocity of armature 3 obtains slowing down because of buffer unit 10, the vibrational energy of the armature 3 that produces when colliding between armature 3 and the iron core 1 is cushioned parts 10 and absorbs, thereby can reduce the strike note that is produced when armature 3 is held by iron core 1.
In the present embodiment, when armature 3 is held by iron core 1, because armature 3 is that sandwich dividing plate 9 is held by iron core 1, so with the centre dividing plate 9 is not set, armature 3 is directly compared by the situation that iron core 1 holds, and can reduce strike note.That is, the energy that is produced when alleviating bump by buffer unit 10 and dividing plate 9, thus can further reduce strike note.At this moment, dividing plate 9 has played protruding effect, when it is held by iron core 1 at armature 3, can stop armature 3 and iron core 1 to be close together, and forms at interval between armature 3 and iron core 1.
Below, the action when discharging with regard to electro-magnetic braking device describes.When the power supply that cuts off magnet coil 2, when making magnet coil 2 form non-excited state (non-power status), the electromagnetic force that magnet coil 2 is produced disappears, and the spring force that has only retarding spring 11 to be produced is applied on the armature 3.Thus, armature 3 is to disk component 8 side shiftings, and the spring force that retarding spring 11 is produced promotes brake pad 7b as braking force towards disk component 8, and disk component 8 is braked pad 7a and brake pad 7b seizes on both sides by the arms with pressure, and forms braking mode.Along with brake pad 7b contacts (bump) with disk component 8, when armature 3 produced vibration, the vibrational energy of armature 3 was cushioned parts 10 and absorbs, the strike note in the time of therefore can reducing armature 3 as the release of source of sound.
According to present embodiment, can when guaranteeing miniaturization, reduce opening snap and unlocking noise respectively.
In the present embodiment, the example of a plurality of buffer units 10 along the circumferencial direction dispersion setting of iron core 1 is described, in addition, as shown in Figure 3, also can adopt following structure, that is, on iron core 1 and relative face armature 3, form circular hole (groove), will form circular buffer unit 10a with the state that always is in compression and be arranged in this hole.At this moment, can obtain effect same as the previously described embodiments.
In the above-described embodiments, to being provided with hole 1c at iron core 1, the one distolateral example that is contained in the 1c of hole of buffer unit 10 is described, but also can adopt following structure, promptly, on iron core 1, the hole is not set, but on the relative face of armature 3 and iron core 1, forms hole (groove), and with distolateral being contained in this hole of buffer unit 10.
In addition,, other parts such as dividing plate are set, can prevent the wearing and tearing of the axial end of buffer unit 10 between buffer unit 10 and the iron core 1 or between buffer unit 10 and armature 3.
In the above-described embodiments, the example that iron core 1 and armature 3 are attracted each other is illustrated, but under iron core 1 is fixed on situation on the motor etc., also can use the present invention.
Claims (5)
1. electro-magnetic braking device is characterized in that:
Have: be built-in with magnet coil iron core, be arranged to can come and go between disk component and the described iron core of braking object move and by electromagnetic attracting force that described magnet coil produced the armature of described core side, and described disk component be oppositely arranged and be connected the brake pad on the described armature and be installed in described armature and described iron core between and with the retarding spring of described armature towards described disk component thruster pressure;
When described magnet coil is in non-excited state, rely on the spring force of described retarding spring to push described brake pad to described disk component, when described magnet coil is in excited state, rely on described electromagnetic force that described brake pad and described disk component are separated;
Between described armature and described iron core, the buffer unit that is in compressed state is installed.
2. electro-magnetic braking device according to claim 1, it is characterized in that, described buffer unit, the vibrational energy of the described armature that absorption was produced by when collision between described brake pad and the described disk component, and absorb by the vibrational energy of the described armature of generation during collision between described armature and the described iron core.
3. electro-magnetic braking device according to claim 1, it is characterized in that, on described iron core, form projection, when this projection is attracted in described core side at described armature, stop described armature and described iron core to be close together, between described armature and described iron core, form at interval.
4. electro-magnetic braking device according to claim 1 is characterized in that, has a plurality of described buffer units, and the circumferencial direction of described each buffer unit along described iron core disperseed to be provided with.
5. electro-magnetic braking device according to claim 1 is characterized in that described buffer unit is formed circular, and along the circumferencial direction setting of described iron core.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003424360 | 2003-12-22 | ||
| JP2003424360A JP4448996B2 (en) | 2003-12-22 | 2003-12-22 | Electromagnetic brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1636858A true CN1636858A (en) | 2005-07-13 |
| CN100344894C CN100344894C (en) | 2007-10-24 |
Family
ID=34784579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100687195A Active CN100344894C (en) | 2003-12-22 | 2004-09-06 | Electromagnetic braking device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4448996B2 (en) |
| CN (1) | CN100344894C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554130C (en) * | 2008-04-16 | 2009-10-28 | 苏州通润驱动设备股份有限公司 | Plate disc brake |
| CN101334078B (en) * | 2007-06-26 | 2010-04-14 | 上海三菱电梯有限公司 | Drum type electromagnetic brake |
| CN102344098A (en) * | 2010-07-27 | 2012-02-08 | 东芝电梯株式会社 | Brake having noise elimination function |
| CN105121891A (en) * | 2013-04-24 | 2015-12-02 | 三菱电机株式会社 | Brake device, and elevator hoist using same |
| CN105800496A (en) * | 2015-01-15 | 2016-07-27 | 西门子公司 | Safety brake for a lifting device |
| CN109477531A (en) * | 2016-07-07 | 2019-03-15 | 株式会社日立制作所 | Electro-magnetic braking device |
| CN110822251A (en) * | 2019-11-20 | 2020-02-21 | 吉林建筑大学 | Angle adjusting device for remote sensing detector |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922238B (en) * | 2006-03-14 | 2018-10-12 | 三菱电机株式会社 | Electromagnetic brake control device |
| CN101850938A (en) * | 2010-02-10 | 2010-10-06 | 浙江玛拓驱动设备有限公司 | Braking method for tractor and device thereof |
| JP6162552B2 (en) * | 2013-09-10 | 2017-07-12 | 株式会社日立製作所 | Brake device and elevator device using the brake device |
| JP6151433B2 (en) * | 2014-03-07 | 2017-06-21 | 株式会社日立製作所 | Elevator |
| CN104140054B (en) * | 2014-07-04 | 2016-09-07 | 浙江西子富沃德电机有限公司 | A kind of electromagnetic disc type brake and the traction machine equipped with this electromagnetic disc type brake |
| KR102564284B1 (en) * | 2015-09-03 | 2023-08-11 | 워언 오토모티브 엘엘씨 | Electromagnetic coil system and methods |
| JP6797081B2 (en) * | 2017-06-15 | 2020-12-09 | 株式会社日立製作所 | Electromagnetic brake device, hoist and elevator |
| CN111994815B (en) * | 2020-08-26 | 2021-09-17 | 广东长海建设工程有限公司 | Safety building hoisting accessory |
| CN113735010B (en) * | 2021-09-14 | 2023-01-20 | 浙江玛拓驱动设备有限公司 | Multiloop electromagnetic brake |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735829B2 (en) * | 1989-08-18 | 1995-04-19 | 株式会社日立製作所 | elevator |
| JPH0873143A (en) * | 1994-09-06 | 1996-03-19 | Toshiba Corp | Disc shaped electromagnetic brake for elevator winding machine |
| JP2804749B2 (en) * | 1996-10-25 | 1998-09-30 | 三陽工業株式会社 | Brake for hoist |
| JPH1163049A (en) * | 1997-08-12 | 1999-03-05 | Shinko Electric Co Ltd | Permanent magnet type non-excitation operated electromagnetic brake |
| JP2001065606A (en) * | 1999-08-26 | 2001-03-16 | Ogura Clutch Co Ltd | Unexcitingly actuated brake |
| JP3852818B2 (en) * | 2000-08-28 | 2006-12-06 | 株式会社椿本チエイン | Silencer for non-excitation actuated electromagnetic brake |
| JP3973894B2 (en) * | 2001-12-19 | 2007-09-12 | 株式会社日立製作所 | Disc type electromagnetic brake device |
-
2003
- 2003-12-22 JP JP2003424360A patent/JP4448996B2/en not_active Expired - Fee Related
-
2004
- 2004-09-06 CN CNB2004100687195A patent/CN100344894C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334078B (en) * | 2007-06-26 | 2010-04-14 | 上海三菱电梯有限公司 | Drum type electromagnetic brake |
| CN100554130C (en) * | 2008-04-16 | 2009-10-28 | 苏州通润驱动设备股份有限公司 | Plate disc brake |
| CN102344098A (en) * | 2010-07-27 | 2012-02-08 | 东芝电梯株式会社 | Brake having noise elimination function |
| CN102344098B (en) * | 2010-07-27 | 2014-11-26 | 东芝电梯株式会社 | Brake having noise elimination function |
| CN105121891A (en) * | 2013-04-24 | 2015-12-02 | 三菱电机株式会社 | Brake device, and elevator hoist using same |
| CN105121891B (en) * | 2013-04-24 | 2017-07-28 | 三菱电机株式会社 | Brake apparatus and the elevator hoist using the brake apparatus |
| CN105800496A (en) * | 2015-01-15 | 2016-07-27 | 西门子公司 | Safety brake for a lifting device |
| CN109477531A (en) * | 2016-07-07 | 2019-03-15 | 株式会社日立制作所 | Electro-magnetic braking device |
| CN109477531B (en) * | 2016-07-07 | 2020-03-03 | 株式会社日立制作所 | Electromagnetic brake device |
| CN110822251A (en) * | 2019-11-20 | 2020-02-21 | 吉林建筑大学 | Angle adjusting device for remote sensing detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100344894C (en) | 2007-10-24 |
| JP4448996B2 (en) | 2010-04-14 |
| JP2005180626A (en) | 2005-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100344894C (en) | Electromagnetic braking device | |
| JP5488238B2 (en) | Electromagnetic relay | |
| US7699145B2 (en) | Elevator disk brake with damping | |
| JPH0379819A (en) | Electromagnetic disc brake for elevator hoist | |
| EP1524157A1 (en) | A vehicle bumper device | |
| WO1997038242A1 (en) | Magnetic spring having damping characteristics and vibration mechanism having same | |
| JP5985048B2 (en) | Brake device, elevator hoist using the same, and buffer reaction force adjusting method for brake device | |
| JP2001240338A (en) | Bumper for elevator | |
| CN103261079A (en) | Electromagnetic brake device for elevator | |
| JPS63130174A (en) | Actuator-unit | |
| EP3659960A1 (en) | Braking device, braking system for elevator, and elevator system | |
| WO2014185137A1 (en) | Brake device for hoisting machine | |
| JP2719999B2 (en) | Anti-vibration support device for compressor in refrigerator | |
| JP2013018646A (en) | Braking device for elevator hoisting machine | |
| CN201990426U (en) | Safety brake of elevator tractor | |
| JP2003184919A (en) | Disc type electromagnetic brake | |
| JP2011112099A (en) | Deenergized operating brake | |
| KR100335072B1 (en) | Restrained Stroke Active Tuned Mass Damper Device in Structures | |
| CN2059632U (en) | Shockproof buffer and automatic brake device for collision of motor vehicle | |
| JP2002081493A (en) | Vibration damping device | |
| JP2004076899A (en) | Brake gear of elevator hoist equipment | |
| JP2003252546A (en) | Shock absorber for elevator | |
| JPH0419024Y2 (en) | ||
| KR200156646Y1 (en) | An engine mount of an automobile | |
| JP2002168286A (en) | Shock buffering device |
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 |