CN1747886A - Emergency brake device of elevator - Google Patents
Emergency brake device of elevator Download PDFInfo
- Publication number
- CN1747886A CN1747886A CN200480003997.0A CN200480003997A CN1747886A CN 1747886 A CN1747886 A CN 1747886A CN 200480003997 A CN200480003997 A CN 200480003997A CN 1747886 A CN1747886 A CN 1747886A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- braking
- brake
- rubber block
- rope sheave
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
An emergency brake device of an elevator, comprising a braking body and a braking/releasing means connected to the braking body. The braking body further comprises a mounting member swingable about the rotating axis of a deflector sheave and a brake shoe fitted to the mounting member and brought into contact with and separated from the deflector sheave side outer peripheral surface of a drive sheave by the swing of the mounting member. The braking/releasing means holds, in a separated state, the brake shoe at a separated position separated from the drive sheave, and in braking, swings the braking body until the brake shoe comes into contact with the drive sheave.
Description
Technical field
The present invention relates to a kind of emergency braking apparatus of elevator, it is braked the rotation that drives rope sheave, makes car stop to travel upward.
Background technology
For example, open in the emergency braking apparatus of disclosed existing lift appliance in flat 5-193860 number the Japanese patent gazette spy, with the brake wheel of the axial end portion adjacency that drives rope sheave with drive rope sheave and rotate integratedly.Brake wheel is provided with the brake surface that engages with the axial end portion that drives rope sheave.In addition, brake wheel is braked spring and pushes to driving rope sheave.
When the ascending velocity of car surpassed predefined speed, braking bolt engaged with brake wheel, thereby brake wheel is stopped the rotation.When brake wheel stops, driving rope sheave by and brake surface between friction force be braked.
But, in above-mentioned existing emergency braking apparatus,, braking bolt stops from being moved up to driving rope sheave, and this wants spended time, therefore causes the corresponding increase of speed of car.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is to provide a kind of emergency braking apparatus that can make the elevator that car stops to travel quickly.
The emergency braking apparatus of elevator of the present invention, it is by braking the rotation that drives rope sheave, make car stop to travel upward, wherein drive the main rope that is wound with suspension craning cab and counterweight on the rope sheave, the brake equipment of this elevator has: brake component, it has installing component and braking brake rubber block, this installing component can be the center swing with the S. A. of the deflector sheave that is wound with main rope, this deflector sheave drives rope sheave relatively and is wound with above-mentioned main rope in the side near above-mentioned counterweight, this braking brake rubber block is located on the installing component, and contacts with the outer peripheral face of close above-mentioned deflector sheave one side of above-mentioned driving rope sheave by the swing of above-mentioned installing component, leave; Braking/releasing unit, it is connected with above-mentioned brake component, when removing, this braking/releasing unit will be braked brake rubber block and remain on to leave and drive the leaving on the position of rope sheave, and at glancing impact, this braking/releasing unit makes above-mentioned brake component swing, drives on the rope sheave so that above-mentioned braking brake rubber block abuts against.
Description of drawings
Fig. 1 is the summary construction diagram of lift appliance of an example of expression embodiment of the present invention;
Fig. 2 is the lateral plan that comes the structure of the emergency braking apparatus in the presentation graphs 1 with part sectional view;
Fig. 3 is the lateral plan of the state of the emergency braking apparatus glancing impact in the presentation graphs 2;
Fig. 4 is the section-drawing of expression along the IV-IV line among Fig. 2;
Fig. 5 is the section-drawing of expression along the V-V line among Fig. 3.
The specific embodiment
Below, with reference to accompanying drawing preferred implementation of the present invention is described.
Fig. 1 is the summary construction diagram of lift appliance of an example of expression embodiments of the present invention.In the drawings, in hoistway 1, be provided with a pair of car guide rail 2 and a pair of counterweight guide rail 3.Car 4 is by car guide rail 2 guiding and liftings in hoistway 1.Counterweight 5 is by 3 guiding and the liftings in hoistway 1 of counterweight guide rail.
Be provided with machine room 6 on the top of hoistway 1.Be provided with mechanical pedestal 7 in the machine room 6.Mechanical pedestal 7 upper supports have actuating device (towing machine) 8 and deflector sheave 9.This actuating device 8 has: the actuating device main body 8a that comprises electrical motor and drg; Driving rope sheave (traction sheave) 8b with the electrical motor rotation of passing through actuating device main body 8a.
On driving rope sheave 8b and deflector sheave 9, be wound with many (only illustrating 1 in the drawings) main ropes 10.Main rope 10 has: with car 4 bonded assemblys the 1st end 10a; With with counterweight 5 bonded assemblys the 2nd end 10b.That is, car 4 and counterweight 5 are suspended in the hoistway 1 with 1: 1 baudrier, and pass through the propulsive effort lifting of actuating device 8.
The S. A. 9a of deflector sheave 9 is parallel with the S. A. 8c that drives rope sheave 8b, and is level.S. A. 8c, 9a are anchor shaft, and driving rope sheave 8b and deflector sheave 9 can relative rotation axi 8c, 9a rotation.In addition, be wound with main rope 10 at actuating device 8 deflector sheave 9, relative near on the sides of counterweight 5.And deflector sheave 9 will be from driving the main rope 10 guiding deflector sheaves 9 that rope sheave 8b draws.
Be provided with emergency braking apparatus 11 between deflector sheave 9 and driving rope sheave 8b, during emergency situation, 11 pairs of rotations that drive rope sheave 8b of this emergency braking apparatus are braked so that car 4 stops.Emergency braking apparatus 11 is independent of the drg in the actuating device main body 8a and is arranged on the outside of actuating device 8.In addition, emergency braking apparatus 11 is electrically connected with the control setup that is used for accessory drive 8 (control panel) 12.Signal from speed detector 13 is imported in the control setup 12, and speed detector 13 is used to detect the speed of car 4.
When the ascending velocity of car 4 surpasses predefined speed, make emergency braking device 11 actions by control setup 12, thereby the rotation that drives rope sheave 8b is braked, so that car 4 stops.In addition, when the descending speed of car 4 surpasses predefined speed, brake command signal is sent to the emergency braking device (not shown) that is contained on the car 4, makes emergency braking device work so that car 4 stops from control setup 12.
Fig. 2 is the lateral plan of structure that comes the emergency braking apparatus 11 of presentation graphs 1 with part sectional view, Fig. 3 is the lateral plan of the state of emergency braking apparatus 11 glancing impacts in the presentation graphs 2, Fig. 4 is the section-drawing of expression along the IV-IV line among Fig. 2, and Fig. 5 is the section-drawing of expression along the V-V line among Fig. 3.
In the drawings, on the S. A. 9a of deflector sheave 9, installing component (hold-down arm) 15 is installed.Installing component 15 can be 9 swings of center relative rotation axi with S. A. 9a.Terminal part at installing component 15 is equipped with braking brake rubber block 17 by a plurality of retarding springs 16.
Braking brake rubber block 17 is by the swing of installing component 15, contacts, leaves with the outer peripheral face of the side (side of counterweight 5) of the close deflector sheave 9 that drives rope sheave 8b.That is, braking brake rubber block 17 can leave drive rope sheave 8b leave position (Fig. 2) and with braking position (Fig. 3) that the outer peripheral face that drives rope sheave 8b contact between mobile.Surface at braking brake rubber block 17 is formed with recess, this recess with the identical curvature bending of outer peripheral face that drives rope sheave 8b.
In addition, at glancing impact, be in non-excited state by making solenoid coil 22, brake component 18 is braked brake rubber block 17 thus and is abutted against on the driving rope sheave 8b owing to its deadweight is swung.In magnet stopper 20, be built-in with bullet downwards and push and plug the assist spring 25 of bar type iron core 21, so that glancing impact plunger 21 is moved downwards more reliably.
On braking brake rubber block 17, be fixed with engagement piece 24, on engagement piece 24, be provided with slotted hole 24a.In plunger 21, be provided with the engaging protrusion that is inserted among the slotted hole 24a.Plunger 21 is connected with braking brake rubber block 17 by engagement piece 24.
Be respectively equipped with a plurality of rope groove 8d, the 9b (Fig. 4 and Fig. 5) that is used to insert main rope 10 at the outer peripheral face that drives rope sheave 8b and the outer peripheral face of deflector sheave 9.
Next, operation is described.When common, solenoid coil 22 is by excitation, promotes plunger 21 upward by the electromagnetic force of this solenoid coil 22, brakes brake rubber block 17 thus and leaves the outer peripheral face that drives rope sheave 8b.In addition, detect the moving velocity of cars 4, and monitor always by control setup 21 by speed detector 13.
When the ascending velocity of car 4 arrives predefined speed above command speed, by the energising of control setup 12 cut-outs to solenoid coil 22.When solenoid coil 22 was in non-excited state, brake component 18 abutted against on the outer peripheral face that drives rope sheave 8b braking brake rubber block 17 owing to the elastic force of its deadweight and assist spring 25 is swung.
When car 4 risings,, therefore brake brake rubber block 17 and after the outer peripheral face with driving rope sheave 8b contacts, continue to move to the hand of rotation that drives rope sheave 8b owing to drive the right-hand revolution of rope sheave 8b to Fig. 2 and Fig. 3.That is, brake component 18 plays the effect of wedge, forms the structure that is wedged between S. A. 9a and the driving rope sheave 8b.At this moment, retarding spring 16 is compressed between installing component 15 and braking brake rubber block 17.
Braking brake rubber block 17 moves to such position, that is, and and the position of the mutual balance of friction brake force that the elastic force of retarding spring 16 and braking brake rubber block 17 are produced.That is,, therefore produce and brake brake rubber block 17, between braking brake rubber block 17 and driving rope sheave 8b, produce friction brake force by to the power that drives rope sheave 8b because retarding spring 16 is compressed.
Thus, the car 4 of rising is slowed down, thereby can stop the car 4 to rise more apace, and irrelevant with the speed of car 4.
In addition, because installing component 15 can be the center swing with S. A. 9a, therefore can effectively utilize the space that drives between rope sheave 8b and the deflector sheave 9 and dispose emergency braking apparatus 11.In addition,, therefore do not need to be provided with in addition the housing of emergency braking apparatus 11 special uses because the housing of deflector sheave 9 is also used as the housing of emergency braking apparatus 11, thus can cost-cutting.
And, braking brake rubber block 17 is remained on leave the position by solenoid coil 22 being carried out excitation, by making solenoid coil 22 be in non-excited state braking brake rubber block 17 is abutted against on the driving rope sheave 8b, therefore can promptly make brake component 18 swings according to instruction from control setup 12.
In addition, by making solenoid coil 22 be in non-excited state, brake component 18 drives on the rope sheave 8b so that braking brake rubber block 17 abuts against owing to its deadweight is swung, and therefore can braking brake rubber block 17 be abutted against more reliably at glancing impact with simple structure and drive on the rope sheave 8b.
In addition, in above-mentioned example, when the ascending velocity of car 4 reaches abnormal speed, make emergency braking apparatus 11 actions, but also can when the stop floor stops, making the emergency braking apparatus action, can stop the abnormal ascending of car 4 when the passenger passes in and out elevator at the car 4 of normal operation.
In addition, in above-mentioned example, show magnet stopper 20, but braking/releasing unit is not limited to this, for example can uses and to brake brake rubber block by air pressure and remain on the power-absorption fan that leaves the position etc. as braking/releasing unit.
Claims (4)
1. the emergency braking apparatus of an elevator, it makes car stop to travel upward by the rotation that drives rope sheave is braked, and is wound with the main rope of above-mentioned car of suspention and counterweight on the wherein above-mentioned driving rope sheave,
The brake equipment of this elevator comprises:
Brake component, it has installing component and braking brake rubber block, this installing component can be the center swing with the S. A. of deflector sheave, this deflector sheave drives rope sheave relatively and is wound with above-mentioned main rope in the side near above-mentioned counterweight, this braking brake rubber block is located on the above-mentioned installing component, and contacts, leaves with the outer peripheral face of close above-mentioned deflector sheave one side of above-mentioned driving rope sheave by the swing of above-mentioned installing component;
Braking/releasing unit, it is connected with above-mentioned brake component, when removing, this braking/releasing unit remains on above-mentioned braking brake rubber block and leaves the leaving on the position of above-mentioned driving rope sheave, and at glancing impact, this braking/releasing unit makes above-mentioned brake component swing, so that above-mentioned braking brake rubber block abuts against on the above-mentioned driving rope sheave.
2. the emergency braking device of elevator according to claim 1 is characterized in that, above-mentioned brake component also has the retarding spring that is located between above-mentioned installing component and the above-mentioned braking brake rubber block.
3. the emergency braking apparatus of elevator according to claim 1 is characterized in that, above-mentioned braking/releasing unit has: with the plunger of above-mentioned brake component bonded assembly; And solenoid coil, when by excitation, this solenoid coil remains on above-mentioned leaving on the position by above-mentioned plunger with above-mentioned braking brake rubber block.
4. the emergency braking apparatus of elevator according to claim 3 is characterized in that, is in non-excited state by making above-mentioned solenoid coil, and above-mentioned brake component is by its deadweight swing, so that above-mentioned braking brake rubber block abuts against on the above-mentioned driving rope sheave.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/002056 WO2005080248A1 (en) | 2004-02-23 | 2004-02-23 | Emergency brake device of elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1747886A true CN1747886A (en) | 2006-03-15 |
| CN100447068C CN100447068C (en) | 2008-12-31 |
Family
ID=34878955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800039970A Expired - Fee Related CN100447068C (en) | 2004-02-23 | 2004-02-23 | Emergency brake device of elevator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1724225B1 (en) |
| JP (1) | JP4292201B2 (en) |
| CN (1) | CN100447068C (en) |
| WO (1) | WO2005080248A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112795A (en) * | 2013-02-02 | 2013-05-22 | 江苏武东机械有限公司 | Self-locking outer edge brake |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7656641B2 (en) * | 2006-12-21 | 2010-02-02 | General Electric Company | Apparatus and method for controlling a solenoid |
| ATE540888T1 (en) * | 2008-06-19 | 2012-01-15 | Inventio Ag | ELEVATOR BRAKE AND AN ELEVATOR SYSTEM WITH AN ELEVATOR BRAKE |
| EP2452910B1 (en) * | 2009-07-08 | 2016-01-06 | Mitsubishi Electric Corporation | Direct-acting drum brake device for elevator |
| CN103062256B (en) * | 2013-02-02 | 2015-11-18 | 江苏武东机械有限公司 | Taper disk type braker |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190917998A (en) * | 1909-08-04 | 1910-08-04 | Paul Taylor Kenny | Safety Indicator and Control for Electric Lifts. |
| US3795290A (en) * | 1970-12-09 | 1974-03-05 | Hitachi Ltd | Drum, rim grip braking device |
| JP2763244B2 (en) * | 1993-01-07 | 1998-06-11 | 三菱電機株式会社 | Elevator braking system |
| JPWO2002053485A1 (en) * | 2000-12-28 | 2004-04-30 | 三菱電機株式会社 | Elevator emergency braking system |
| EP1498380A4 (en) * | 2002-04-19 | 2011-01-05 | Mitsubishi Electric Corp | Emergency brake device for elevator |
-
2004
- 2004-02-23 WO PCT/JP2004/002056 patent/WO2005080248A1/en active Application Filing
- 2004-02-23 EP EP04713643A patent/EP1724225B1/en not_active Expired - Fee Related
- 2004-02-23 CN CNB2004800039970A patent/CN100447068C/en not_active Expired - Fee Related
- 2004-02-23 JP JP2006519061A patent/JP4292201B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112795A (en) * | 2013-02-02 | 2013-05-22 | 江苏武东机械有限公司 | Self-locking outer edge brake |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1724225B1 (en) | 2013-01-09 |
| WO2005080248A1 (en) | 2005-09-01 |
| JPWO2005080248A1 (en) | 2007-08-30 |
| EP1724225A4 (en) | 2012-02-22 |
| JP4292201B2 (en) | 2009-07-08 |
| EP1724225A1 (en) | 2006-11-22 |
| CN100447068C (en) | 2008-12-31 |
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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: 20081231 Termination date: 20190223 |