CN102774771B - Electromagnetic control traction sheave brake - Google Patents
Electromagnetic control traction sheave brake Download PDFInfo
- Publication number
- CN102774771B CN102774771B CN201210276588.4A CN201210276588A CN102774771B CN 102774771 B CN102774771 B CN 102774771B CN 201210276588 A CN201210276588 A CN 201210276588A CN 102774771 B CN102774771 B CN 102774771B
- Authority
- CN
- China
- Prior art keywords
- hollow sleeve
- brake rod
- traction sheave
- brake
- jacking block
- 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.)
- Expired - Fee Related
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- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention relates to an electromagnetic control traction sheave brake. A traction sheave comprises a cylindrical sheave body and a hollow shaft sleeve which is coaxial with the sheave body, and the sheave body and the shaft sleeve are connected through a plurality of spokes that are vertical to the sheave body and are distributed circumferentially. The electromagnetic control traction sheave brake is characterized by comprising an inverted-cone-shaped hollow sleeve, and an inverted-cone-shaped magnetic top block with the shape matched with the appearance and the internal shape of the hollow sleeve, the hollow sleeve is coaxially arranged at one side of the top block, the other side of the top block is provided with an electromagnet in attraction with the top block, and a brake rod capable of only moving in radial direction is inserted in the side wall of the hollow sleeve. According to the electromagnetic control traction sheave brake, the traction sheave brakes by virtue of electromagnetism attraction, and the restoring force of a spring offsets the brake force; the electromagnetic control traction sheave brake has a simple structure, is convenient in operation, is accurate in brake location, and has good brake effect; the top block and the brake rod stretch into the hollow sleeve by a reasonable length, so that the top block and the brake rod can well control self movement direction, and the stability of the brake is improved.
Description
Technical field
The present invention relates to a kind of brake device for elevator, relate in particular to a kind of drg that directly acts on elevator traction sheave.
Background technology
The power plant of elevator is mainly towing machine, specifically comprises electrical motor, coupler, drop-gear box, traction sheave and frame.Wherein, traction sheave also claims traction rope sheave or drives rope sheave, is the device that elevator transmits traction power, utilizes the friction force transferring power of grooving on traction steel-cable and traction wheel rim, is contained on the worm-wheel shaft in retarder.The brake equipment of elevator, is arranged on cage guide or on hoist ropes conventionally at present, and braking effect is not as directly braking traction sheave.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, provides a kind of simple in structure, snap catch, and can cancel fast braking force, braking position accurate and, effective electromagnetic control traction sheave drg.
For achieving the above object, the technical solution used in the present invention is: a kind of traction sheave drg of electromagnetic control, described traction sheave comprise tubular wheel body and with the hollow tube-shape axle sleeve of the coaxial setting of described wheel body, between described wheel body and axle sleeve, by the some spokes that circumferentially distribute perpendicular to described wheel body, be connected, it is characterized in that: comprise back taper hollow sleeve, the back taper magnetic jacking block matching with hollow sleeve interior shape with profile, described hollow sleeve is with being located in jacking block one side, the opposite side of jacking block is provided with the electromagnet attracting each other with jacking block, on hollow sleeve sidewall, be inserted with the brake rod that can and can only move radially.
In a preferred embodiment of the present invention, further comprise that described brake rod is hollow structure, the one end of stretching out hollow sleeve is closed, is provided with the spring parallel with brake rod in the hollow cavity of brake rod, described spring one end is connected with described brake rod closing end, and the other end is fixed on hollow sleeve sidewall.
In a preferred embodiment of the present invention, further comprise that the minor increment of described electromagnet towards the wall of jacking block one side along hollow sleeve axis direction to hollow sleeve open end end face is less than jacking block along the length of self axis direction.
In a preferred embodiment of the present invention, further comprise along hollow sleeve axis direction, described brake rod is less than jacking block cone tip part to the distance of described open end end face to the distance of hollow sleeve open end end face.
In a preferred embodiment of the present invention, further comprise that described brake rod stretches into an end section of hollow sleeve identical along the degree of dip at axis direction same position place with hollow sleeve sidewall.
In a preferred embodiment of the present invention, further comprise that the natural length of described spring equals the distance of brake rod closing end along brake rod axis to hollow sleeve sidewall.
In a preferred embodiment of the present invention, while further comprising that described spring in the raw, the length of brake rod in hollow sleeve equals, and the residing hollow sleeve sidewall locations of brake rod axially arrives the distance of jacking block outside wall surface along brake rod.
The invention solves the defect existing in background technology, the traction sheave drg of a kind of electromagnetic control of the present invention, relies on electromagnetic attaction braking traction sheave, rely on the restoring force of spring to cancel braking force, simple in structure, easy to operate, brake accurate positioning, good braking effect simultaneously.Jacking block is rationally set and stretches into the length of hollow sleeve and the length that brake rod stretches into hollow sleeve, be conducive to better control tracks direction separately, strengthen drg stability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the schematic cross-section that in the preferred embodiments of the present invention, brake rod is plugged in hollow sleeve position;
In figure: 1, wheel body, 2, hollow sleeve, 3, axle sleeve, 4, jacking block, 5, spoke, 6, electromagnet, 8, brake rod, 81, breach, 12, spring.
The specific embodiment
The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only shows the formation relevant with the present invention.
As shown in Figure 1, the traction sheave drg of a kind of electromagnetic control of the present invention, described traction sheave comprise tubular wheel body 1 and with the hollow tube-shape axle sleeve 3 of the coaxial setting of described wheel body 1, between described wheel body 1 and axle sleeve 3, by the some spokes 5 that circumferentially distribute perpendicular to described wheel body 1, be connected.Described drg comprises the back taper magnetic jacking block 4 that back taper hollow sleeve 2 and profile match with hollow sleeve 2 interior shapes, described hollow sleeve 2 is with being located in jacking block 4 one sides, the opposite side of jacking block 4 is provided with the electromagnet 6 attracting each other with jacking block 4, is inserted with the brake rod 8 that can and can only move radially on hollow sleeve 2 sidewalls.The minor increment of described electromagnet 6 towards the wall of jacking block 4 one sides along hollow sleeve 2 axis directions to hollow sleeve 2 open end end faces is less than jacking block 4 along the length of self axis direction, jacking block 4 is arranged on along on the sliding rail of hollow sleeve 2 axis directions, limits it and moves in the direction.Described brake rod 8 is the cylindric hollow structure of lengthwise, on sidewall, have the long and narrow breach 81 along axis direction, brake rod 8 stretches out one end closure of hollow sleeve 2, and hollow sleeve 2 sidewalls have the C type through hole that coordinates brake rod 8 cross sectional shapes and described breach 81, as shown in Figure 2; Brake rod 8 other ends stretch into hollow sleeve 2 inside through described through hole.Brake rod 8 length are 1.5-2 times that traction sheave spoke 5 arrives wheel body 1 one end end face distance vertically.In the hollow cavity of brake rod 8, be provided with the spring parallel with brake rod 8 12, spring 12 not only plays the reset response to brake rod 8, can limit the sense of motion of brake rod 8 simultaneously.Described spring 12 one end are connected with described brake rod 8 closing ends, and the other end is fixed on the wall at hollow sleeve 2 sidewall C type through hole middle parts.The natural length of described spring 12 equals the distance of brake rod 8 closing ends along brake rod 8 axis to hollow sleeve 2 sidewalls, spring 12 is in the raw time, the length of brake rod 8 in hollow sleeve 2, equals residing hollow sleeve 2 sidewall locations of brake rod 8 and axially arrives the distance of jacking block 4 outside wall surface along brake rod 8.Along hollow sleeve 2 axis directions, described brake rod 8 is less than jacking block 4 cone tip parts to the distance of described open end end face to the distance of hollow sleeve 2 open end end faces.The end section that described brake rod 8 stretches into hollow sleeve 2 is identical along the degree of dip at axis direction same position place with hollow sleeve 2 sidewalls, and the contact surface of 4 of brake rod 8 and jacking blocks is more fitted, and coordinates more stable.
During installation, traction sheave plane is vertical, and drg of the present invention is located near traction sheave, and wherein, brake rod 8, perpendicular to traction sheave plane, is aimed at the neutral gear region that adjacent two spokes 5 and wheel body 1 wall enclose, and does not contact wheel body 1 near wheel body 1 as far as possible; Spring 12 is in naturally former length, the distance of the C type through hole that the length that brake rod 8 stretches out hollow sleeve 2 is less than or equal to hollow sleeve 2 along hollow sleeve 2 axis directions to the nearlyer one end of wheel body 1 end face.Elevator normally moves, and during traction sheave normal rotation, to electromagnet 6 supply regular powers, jacking block 4 is attracted to be positioned at its lower end by electromagnet 6, and jacking block 4 lower ends are stretched in hollow sleeve 2, and brake rod 8 is not had to horizontal thrust, and brake rod 8 does not enter described neutral gear region; In the time of need to braking, power-off protection, jacking block 4 loses the attractive force of electromagnet 6, under Action of Gravity Field, along described guide rail, enter to hollow sleeve 2 cone tip parts and move, brake rod 8 stretches into one end horizontal direction of hollow sleeve 2 and the distance of jacking block 4 is more and more less, until contact jacking block 4 outside wall surface, jacking block 4 continues to decline, and promotes brake rod 8 and stretches into described neutral gear region, brakes; Meanwhile, spring 12 is stretched, and in the time of need to again resuming operation, energising electromagnet 6 attracts jacking block 4 upward movements again, and brake rod 8, under the restoring force effect of spring 12, exits neutral gear region gradually, removes the braking of traction sheave spacing.
Above foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification sheets, must determine technical scope according to claim scope.
Claims (6)
1. the traction sheave drg of an electromagnetic control, described traction sheave comprise tubular wheel body and with the hollow tube-shape axle sleeve of the coaxial setting of described wheel body, between described wheel body and axle sleeve, by the some spokes that circumferentially distribute perpendicular to described wheel body, be connected, it is characterized in that: comprise the back taper magnetic jacking block that back taper hollow sleeve and profile match with hollow sleeve interior shape, described hollow sleeve is with being located in jacking block one side, the opposite side of jacking block is provided with the electromagnet attracting each other with jacking block, is inserted with the brake rod that can and can only move radially on hollow sleeve sidewall; Described brake rod is hollow structure, on sidewall, have the long and narrow breach along axis direction, brake rod stretches out one end closure of hollow sleeve, hollow sleeve sidewall has the C type through hole that coordinates brake rod cross sectional shape and described breach, the brake rod other end stretches into hollow sleeve inside through described through hole, in the hollow cavity of brake rod, be provided with the spring parallel with brake rod, described spring one end is connected with described brake rod closing end, and the other end is fixed on hollow sleeve sidewall.
2. according to the traction sheave drg of a kind of electromagnetic control described in claim 1, it is characterized in that: the minor increment of described electromagnet towards the wall of jacking block one side along hollow sleeve axis direction to hollow sleeve open end end face is less than jacking block along the length of self axis direction.
3. according to the traction sheave drg of a kind of electromagnetic control described in claim 2, it is characterized in that: along hollow sleeve axis direction, described brake rod is less than jacking block cone tip part to the distance of described open end end face to the distance of hollow sleeve open end end face.
4. according to the traction sheave drg of a kind of electromagnetic control described in claim 3, it is characterized in that: the end section that described brake rod stretches into hollow sleeve is identical along the degree of dip at axis direction same position place with hollow sleeve sidewall.
5. according to the traction sheave drg of a kind of electromagnetic control described in claim 4, it is characterized in that: the natural length of described spring equals the distance of brake rod closing end along brake rod axis to hollow sleeve sidewall.
6. according to the traction sheave drg of a kind of electromagnetic control described in claim 5, it is characterized in that: described spring is in the raw time, the length of brake rod in hollow sleeve equals, and the residing hollow sleeve sidewall locations of brake rod axially arrives the distance of jacking block outside wall surface along brake rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276588.4A CN102774771B (en) | 2012-08-06 | 2012-08-06 | Electromagnetic control traction sheave brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276588.4A CN102774771B (en) | 2012-08-06 | 2012-08-06 | Electromagnetic control traction sheave brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102774771A CN102774771A (en) | 2012-11-14 |
| CN102774771B true CN102774771B (en) | 2014-10-29 |
Family
ID=47119915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210276588.4A Expired - Fee Related CN102774771B (en) | 2012-08-06 | 2012-08-06 | Electromagnetic control traction sheave brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102774771B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170190B (en) * | 2020-04-11 | 2020-09-01 | 山东科瑞机械制造有限公司 | Drilling rig winch disc brake integrated control method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202539A (en) * | 1991-08-28 | 1993-04-13 | Inventio Ag | Emergency brake apparatus for an elevator |
| JP2000191250A (en) * | 1998-12-25 | 2000-07-11 | Mitsubishi Electric Corp | Hoisting device for elevator |
| CN1902122A (en) * | 2004-08-19 | 2007-01-24 | 三菱电机株式会社 | Brake device for elevator |
| CN201545570U (en) * | 2009-11-21 | 2010-08-11 | 韶关市曲江区明和设备修造有限公司 | Elevator speed limiting device |
| JP2010189088A (en) * | 2009-02-16 | 2010-09-02 | Mitsubishi Electric Corp | Elevator emergency brake device |
| CN102101619A (en) * | 2009-12-18 | 2011-06-22 | 株式会社日立制作所 | Brake device of elevator |
| CN102272030A (en) * | 2009-01-12 | 2011-12-07 | 通力股份公司 | Elevator provided with locking device preventing movement of elevator car and locking device preventing movement of elevator car |
| CN202766190U (en) * | 2012-08-06 | 2013-03-06 | 吴江信谊精密五金有限公司 | Electromagnetic control traction sheave brake |
-
2012
- 2012-08-06 CN CN201210276588.4A patent/CN102774771B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202539A (en) * | 1991-08-28 | 1993-04-13 | Inventio Ag | Emergency brake apparatus for an elevator |
| JP2000191250A (en) * | 1998-12-25 | 2000-07-11 | Mitsubishi Electric Corp | Hoisting device for elevator |
| CN1902122A (en) * | 2004-08-19 | 2007-01-24 | 三菱电机株式会社 | Brake device for elevator |
| CN102272030A (en) * | 2009-01-12 | 2011-12-07 | 通力股份公司 | Elevator provided with locking device preventing movement of elevator car and locking device preventing movement of elevator car |
| JP2010189088A (en) * | 2009-02-16 | 2010-09-02 | Mitsubishi Electric Corp | Elevator emergency brake device |
| CN201545570U (en) * | 2009-11-21 | 2010-08-11 | 韶关市曲江区明和设备修造有限公司 | Elevator speed limiting device |
| CN102101619A (en) * | 2009-12-18 | 2011-06-22 | 株式会社日立制作所 | Brake device of elevator |
| CN202766190U (en) * | 2012-08-06 | 2013-03-06 | 吴江信谊精密五金有限公司 | Electromagnetic control traction sheave brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102774771A (en) | 2012-11-14 |
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Granted publication date: 20141029 Termination date: 20170806 |