CN105465244A - Electromagnetic power-off brake allowing gap between friction surfaces to be adjusted at will - Google Patents
Electromagnetic power-off brake allowing gap between friction surfaces to be adjusted at will Download PDFInfo
- Publication number
- CN105465244A CN105465244A CN201610025264.1A CN201610025264A CN105465244A CN 105465244 A CN105465244 A CN 105465244A CN 201610025264 A CN201610025264 A CN 201610025264A CN 105465244 A CN105465244 A CN 105465244A
- Authority
- CN
- China
- Prior art keywords
- brake
- motor shaft
- yoke
- armature
- electromagnetic power
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/62—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0084—Assembly or disassembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an electromagnetic power-off brake allowing a gap between friction surfaces to be adjusted at will. The electromagnetic power-off brake comprises a motor shaft. A bull gear is arranged on the motor shaft and sleeved with a friction pair. A brake disc is arranged on the portion, below the friction pair, of the motor shaft. An armature is arranged on the portion, below the brake disc, of the motor shaft. A magnet yoke is arranged on the portion, below the armature, of the motor shaft. A coil is arranged in the magnet yoke. The magnet yoke and the friction pair are fixedly connected through an installing ring. Fastening bolts used for fixing the magnet yoke and the friction pair are installed in the installing ring. An air gap adjusting sleeve is arranged in the gap. A setting screw is arranged on the air gap adjusting sleeve. An end cover is arranged on the portion, below the air gap adjusting sleeve, of the motor shaft. The end cover is fixed to the magnet yoke through the fastening bolts. The power-off brake is convenient to operate; the situation that under the non-brake state, the brake disc rotates along with the motor shaft under the own gravity effect and rubs with the armature in a no-load mode is avoided, abrasion to a friction plate is avoided, the use effect of the brake is improved, and the service life of the brake is prolonged.
Description
Technical field
The invention belongs to electromagnetic power-off brake technical field, be specifically related to a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap.
Background technique
Electromagnetic power-off brake is a kind of electromagnetic brake of be energized separation, power-off brake, it is generally applied on common Y-series motor with in other transmission system, accurately can locate and the braking of anti-danger the object of rotation and movement, this product is widely used in the occasions such as oil, chemical industry, printing, packaging.Common electromagnetic power-off brake mainly comprises several parts such as yoke, coil, spring, armature, brake disc and geared sleeve, its working principle is when the logical upper DC excitation electric current of coil, magnetic yoke body produces the pressure adhesive armature that D.C. magnetic field overcomes spring, armature is moved to yoke direction, displacement distance is δ (being about 0.5 ~ 1mm) left and right, Friction Disk Surface now on brake disc and fastness also relieve pressure, geared sleeve moves, be in quick condition, the axle of motor is in rotation status; If give coil blackout, the magnetic field dissipate of coil, armature moves to the direction of brake disc under spring force, and the rubbing surface compressing brake disc surface produces friction torque, reaches the effect of the motor shaft that braking rotates.This electromagnetic power-off brake mounting type is the horizontal installation of requirement motor, namely requires that motor shaft follows ground parallel, because install for brake disc easily mobile on geared sleeve like this, electromagnetic brake is installed all by this way all the time.
But some occasion needs the vertical installation of motor, what arise at the historic moment is the electromagnetic power-off brake of vertical installation in prior art.But, the electromagnetic power-off brake of vertical installation in prior art, when electromagnetic brake is in non-brake, armature relieves brake disc pressure, brake disc is in floating state, and brake disc now moves toward armature direction under the effect of self gravitation.Under such state, brake disc can follow motor shaft to rotate together when break is not braked, and and armature produce non-load friction, and to generate heat due to friction work, so also can accelerate the wearing and tearing of friction plate, shorten the working life of break.In addition, the utilization ratio of electromagnetic power-off brake to the effect in coil generation magnetic field of vertical installation in prior art is also not high enough, lacks the preparation configuration of manual tune.Therefore, need to provide a kind of new technological scheme to solve.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap, this electromagnetic power-off brake structure is simple, easy to operate, avoid brake disc to rotate also with motor shaft and armature generation non-load friction due to self gravitation effect under non-brake state, avoid the wearing and tearing of friction plate, thus improve use effect of break and extend the working life of break.
For achieving the above object, the invention provides following technological scheme: a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap, comprise motor shaft, described motor shaft is installed on gearwheel, described gearwheel is set with friction pair, be positioned on the motor shaft below described friction pair and be also installed on brake disc, be positioned on the motor shaft below described brake disc and be installed on armature, be positioned on the motor shaft below described armature and be installed on yoke, coil is installed in described yoke, be fixedly connected with by installing ring between described yoke with described friction pair, and the clamping bolt be also installed in described installing ring for fixing yoke and friction pair, gap is had below described brake disc and between described motor shaft, air gap adjusting sleeve is installed in described gap, and described air gap adjusting sleeve is also installed on screw, be positioned on the motor shaft below described air gap adjusting sleeve and be also installed on end cap, described end cap is fixed by clamping bolt and described yoke.
As optimal technical scheme, be processed with circular groove in described yoke, described coil is installed in described circular groove, and described coil is redundancy coil.
As optimal technical scheme, in described coil, be also installed on magnetoconstriction bar, described magnetoconstriction bar one end is fixed in described coil, and the other end is flexibly connected with described armature.
As optimal technical scheme, also connecting sleeve is installed in described yoke, compression nut is provided with in described connecting sleeve, described compression nut is installed on running shaft, the described running shaft the other end extends to outside described yoke, and be positioned at described running shaft and described yoke joint is installed on rotary sleeve, described running shaft is also installed on handle.
As optimal technical scheme, the running shaft being positioned at described connecting sleeve is also installed on Compress Spring, and described Compress Spring is positioned at below described compression nut.
Compared with prior art, the invention has the beneficial effects as follows: the present invention adopts and installs an air gap adjusting sleeve and installing ring additional in the below of brake disc, determined the working gas gap size of break by the length of installing ring during assembling, the upper and lower of brake disc is adjusted up and down by air gap adjusting sleeve, (friction pair contact of getting along well above when dish to be braked does not rub up and down, armature of getting along well below contacts), screw in locking air gap adjusting sleeve, even if air gap has adjusted, and then load onto installing ring and yoke, namely whole installation has accused, during such brake, upwards brake disc is pushed down under the effect of armature spring, air gap adjusting sleeve does not contact with brake disc, move to the direction of yoke under the effect of armature in electromagnetic force when brake guaranties (state of not braking), brake disc is under gravity along the spline tooth slide downward of geared sleeve, being held by it after contacting with air gap adjusting sleeve does not allow it continue slide downward, reply in the air gap adjusted in advance, avoid the non-load friction of brake disc and armature, avoid the wearing and tearing of friction plate, thus improve use effect of break and extend the working life of break, circular groove is joined the utilization that electromagnetic power-off brake can be produced the effect in magnetic field with redundancy fitting coils magnetoconstriction bar to coil and is utilized fully, and braking in time, the compression nut arranged in connecting sleeve coordinates running shaft to play the effect of hand brake under Compress Spring effect, thus further increases the braking effect of electromagnetic power-off brake.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Be clearly and completely described the technological scheme in the present invention below in conjunction with specific embodiment, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1: a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap, comprise motor shaft 1, motor shaft is installed on gearwheel 2, gearwheel 2 is set with friction pair 3, be positioned on the motor shaft 1 below friction pair 3 and be also installed on brake disc 4, be positioned on the motor shaft 1 below brake disc 4 and be installed on armature 5, be positioned on the motor shaft 1 below armature 5 and be installed on yoke 6, coil 7 is installed in yoke 6, be fixedly connected with by installing ring 8 between yoke 6 with friction pair 3, and the clamping bolt 9 be also installed in installing ring 8 for fixing yoke 6 and friction pair 3, gap 10 is had below brake disc 4 and between motor shaft 1, air gap adjusting sleeve 11 is installed in gap 10, and air gap adjusting sleeve 11 is also installed on screw 12, motor shaft 1 below air gap adjusting sleeve 11 is also installed on end cap 13, end cap 13 is fixed by clamping bolt 9 and yoke 6.The present invention adopts and installs an air gap adjusting sleeve 11 and installing ring 8 additional in the below of brake disc 4, determined the working gas gap size of break by the length of installing ring 8 during assembling, the upper and lower of brake disc 4 is adjusted by air gap adjusting sleeve about 11, when dish about 4 to be braked does not rub, (friction pair 3 of getting along well above contacts, armature 5 of getting along well below contacts), screw 12 in locking air gap adjusting sleeve 11, even if air gap has adjusted, and then load onto installing ring 8 and yoke 6, namely whole installation has accused, during such brake, armature 5 upwards pushes down brake disc 4, air gap adjusting sleeve 11 does not contact with brake disc 4, move to the direction of yoke 6 under the effect of armature 5 in electromagnetic force when brake guaranties (state of not braking), brake disc 4 is under gravity along the spline tooth slide downward of geared sleeve, being held by it after contacting with air gap adjusting sleeve 11 does not allow it continue slide downward, reply in the air gap adjusted in advance.Avoid the non-load friction of brake disc 4 and armature 5, avoid the wearing and tearing of friction plate, thus improve use effect of break and extend the working life of break.
Be processed with circular groove 14 in yoke 6, coil 7 is installed in circular groove 14, and coil 7 is redundancy coil, in coil 7, be also installed on magnetoconstriction bar 15, and magnetoconstriction bar 15 one end is fixed in coil 7, and the other end is flexibly connected with armature 5.Electromagnetic power-off brake can be produced the effect in magnetic field by circular groove 14 and redundancy fitting coils magnetoconstriction bar 15 utilization to coil utilizes fully, and braking in time.
Connecting sleeve 16 is also installed in yoke 6, compression nut 17 is provided with in connecting sleeve 16, compression nut 17 is installed on running shaft 18, the running shaft 18 being positioned at connecting sleeve 16 is also installed on Compress Spring 20, running shaft 18 the other end extends to outside yoke 6, be positioned at running shaft 18 and be installed on rotary sleeve 19 with yoke 6 joint, running shaft 18 is also installed on handle 21.The compression nut 17 arranged in connecting sleeve 16 coordinates running shaft 18 to play the effect of hand brake under Compress Spring 20 acts on, thus further increases the braking effect of electromagnetic power-off brake.
Working principle of the present invention: the present invention adopts and installs an air gap adjusting sleeve 11 and installing ring 8 additional in the below of brake disc 4, determined the working gas gap size of break by the length of installing ring 8 during assembling, the upper and lower of brake disc 4 is adjusted by air gap adjusting sleeve about 11, when dish about 4 to be braked does not rub, (friction pair 3 of getting along well above contacts, armature 5 of getting along well below contacts), screw 12 in locking air gap adjusting sleeve 11, even if air gap has adjusted, and then load onto installing ring 8 and yoke 6, namely whole installation has accused, during such brake, armature 5 upwards pushes down brake disc 4, air gap adjusting sleeve 11 does not contact with brake disc 4, move to the direction of yoke 6 under the effect of armature 5 in electromagnetic force when brake guaranties (state of not braking), brake disc 4 is under gravity along the spline tooth slide downward of geared sleeve, being held by it after contacting with air gap adjusting sleeve 11 does not allow it continue slide downward, reply in the air gap adjusted in advance.Avoid the non-load friction of brake disc 4 and armature 5, avoid the wearing and tearing of friction plate, thus improve use effect of break and extend the working life of break.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (5)
1. one kind can adjust arbitrarily the electromagnetic power-off brake in rubbing surface gap, comprise motor shaft, described motor shaft is installed on gearwheel, it is characterized in that: described gearwheel is set with friction pair, be positioned on the motor shaft below described friction pair and be also installed on brake disc, be positioned on the motor shaft below described brake disc and be installed on armature, be positioned on the motor shaft below described armature and be installed on yoke, coil is installed in described yoke, be fixedly connected with by installing ring between described yoke with described friction pair, and the clamping bolt be also installed in described installing ring for fixing yoke and friction pair, gap is had below described brake disc and between described motor shaft, air gap adjusting sleeve is installed in described gap, and described air gap adjusting sleeve is also installed on screw, be positioned on the motor shaft below described air gap adjusting sleeve and be also installed on end cap, described end cap is fixed by clamping bolt and described yoke.
2. a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap according to claim 1, it is characterized in that: be processed with circular groove in described yoke, described coil is installed in described circular groove, and described coil is redundancy coil.
3. a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap according to claim 1, it is characterized in that: in described coil, be also installed on magnetoconstriction bar, described magnetoconstriction bar one end is fixed in described coil, and the other end is flexibly connected with described armature.
4. a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap according to claim 1, it is characterized in that: in described yoke, be also installed on connecting sleeve, compression nut is provided with in described connecting sleeve, described compression nut is installed on running shaft, the described running shaft the other end extends to outside described yoke, and be positioned at described running shaft and described yoke joint is installed on rotary sleeve, described running shaft is also installed on handle.
5. a kind of electromagnetic power-off brake that can adjust arbitrarily rubbing surface gap according to claim 4, is characterized in that: the running shaft being positioned at described connecting sleeve is also installed on Compress Spring, and described Compress Spring is positioned at below described compression nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025264.1A CN105465244B (en) | 2016-01-13 | 2016-01-13 | A kind of electromagnetic power-off brake that can arbitrarily adjust rubbing surface gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025264.1A CN105465244B (en) | 2016-01-13 | 2016-01-13 | A kind of electromagnetic power-off brake that can arbitrarily adjust rubbing surface gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465244A true CN105465244A (en) | 2016-04-06 |
| CN105465244B CN105465244B (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610025264.1A Active CN105465244B (en) | 2016-01-13 | 2016-01-13 | A kind of electromagnetic power-off brake that can arbitrarily adjust rubbing surface gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465244B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293945A (en) * | 2019-08-06 | 2019-10-01 | 厦门金龙联合汽车工业有限公司 | A kind of electromagnetic brake and Direct wheel drives system |
| US10975927B2 (en) | 2018-08-17 | 2021-04-13 | Otis Elevator Company | Brake device for elevator and an elevator system |
| CN114664597A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Motor power-off locking device of motor operating mechanism and circuit breaker |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2983339A (en) * | 1959-08-13 | 1961-05-09 | Ampex | Differential disc brake |
| DE10236860A1 (en) * | 2002-08-07 | 2004-02-19 | Demag Cranes & Components Gmbh | Motor brake for a rotary current motor with a shaft on rotary bearings has a brake disk linked to a motor shaft and friction/counter-friction surfaces to trigger braking |
| JP2004197911A (en) * | 2002-12-20 | 2004-07-15 | Fuji Hensokuki Co Ltd | Electromagnetic brake |
| JP2008039107A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Building Systems Co Ltd | Disk brake unit |
| CN203257943U (en) * | 2013-03-22 | 2013-10-30 | 广德县辉达电器有限公司 | Assembling structure of electromagnetic power-off brake for ship |
| CN204113976U (en) * | 2014-07-25 | 2015-01-21 | 安徽创新电磁离合器有限公司 | A kind of remote electric release electromagnetic power-off brake |
| CN204784313U (en) * | 2015-05-19 | 2015-11-18 | 江西华伍制动器股份有限公司 | Adjustable electromagnetism disc brake |
| CN205371397U (en) * | 2016-01-13 | 2016-07-06 | 安徽立信电磁离合器有限公司 | Electromagnetism that can adjust friction surface clearance wantonly loses electric brake |
-
2016
- 2016-01-13 CN CN201610025264.1A patent/CN105465244B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2983339A (en) * | 1959-08-13 | 1961-05-09 | Ampex | Differential disc brake |
| DE10236860A1 (en) * | 2002-08-07 | 2004-02-19 | Demag Cranes & Components Gmbh | Motor brake for a rotary current motor with a shaft on rotary bearings has a brake disk linked to a motor shaft and friction/counter-friction surfaces to trigger braking |
| JP2004197911A (en) * | 2002-12-20 | 2004-07-15 | Fuji Hensokuki Co Ltd | Electromagnetic brake |
| JP2008039107A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Building Systems Co Ltd | Disk brake unit |
| CN203257943U (en) * | 2013-03-22 | 2013-10-30 | 广德县辉达电器有限公司 | Assembling structure of electromagnetic power-off brake for ship |
| CN204113976U (en) * | 2014-07-25 | 2015-01-21 | 安徽创新电磁离合器有限公司 | A kind of remote electric release electromagnetic power-off brake |
| CN204784313U (en) * | 2015-05-19 | 2015-11-18 | 江西华伍制动器股份有限公司 | Adjustable electromagnetism disc brake |
| CN205371397U (en) * | 2016-01-13 | 2016-07-06 | 安徽立信电磁离合器有限公司 | Electromagnetism that can adjust friction surface clearance wantonly loses electric brake |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10975927B2 (en) | 2018-08-17 | 2021-04-13 | Otis Elevator Company | Brake device for elevator and an elevator system |
| CN110293945A (en) * | 2019-08-06 | 2019-10-01 | 厦门金龙联合汽车工业有限公司 | A kind of electromagnetic brake and Direct wheel drives system |
| CN110293945B (en) * | 2019-08-06 | 2024-04-12 | 厦门金龙联合汽车工业有限公司 | Electromagnetic brake and wheel driving system |
| CN114664597A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Motor power-off locking device of motor operating mechanism and circuit breaker |
| CN114664597B (en) * | 2021-12-24 | 2024-05-17 | 平高集团有限公司 | Motor power failure locking device of motor operating mechanism and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465244B (en) | 2018-08-10 |
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