CN100572246C - The emergency braking apparatus of elevator - Google Patents
The emergency braking apparatus of elevator Download PDFInfo
- Publication number
- CN100572246C CN100572246C CNB2006100912296A CN200610091229A CN100572246C CN 100572246 C CN100572246 C CN 100572246C CN B2006100912296 A CNB2006100912296 A CN B2006100912296A CN 200610091229 A CN200610091229 A CN 200610091229A CN 100572246 C CN100572246 C CN 100572246C
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- China
- Prior art keywords
- brake component
- guide rail
- guiding device
- actuator
- spring
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Abstract
A kind of emergency braking apparatus of elevator, possess: the actuator (electromagnet 11) that when the ascending velocity of lift car (3) surpasses specified value, moves, according to the action of this actuator (11) and with guide rail (2) moving contact, the brake component (12) that makes lift car slow down and stop, engage with described actuator, and brake component is remained on holding device (13) on the position of readiness, being provided with in mode with the direction superior displacement of guide rail quadrature, have brake component that the deadweight of will relying on along with the release of holding device falls towards with the guiding device (14) of the dip plane of the Direction guide of guide rail moving contact, and can be with the spring (15) of guiding device towards the pushing of guide rail direction, rely on spring by the brake component that will rely on deadweight to fall in the gap between guide rail and the guiding device, the pushing by guiding device towards guide rail and obtain braking force along with the release of holding device.Thereby this brake equipment can adopt the actuator of low capacity.
Description
Technical field
The present invention relates to a kind of emergency braking apparatus of elevator, especially relate to a kind of brake shoe for elevator emergency stop, this emergency braking apparatus uses actuator, when the speed of described lift car surpasses specified value or described lift car with state of a control not when ascent direction travels, lift car is braked.
Background technology
As conventional art, for example have patent documentation 1 spy of Japan and open the brake device for elevator described in the flat 10-218524 communique, this brake device for elevator uses actuator that lift car is braked, this brake device for elevator has actuator and brake component, this actuator has the actuation force that overcomes spring force, its power supply is cut off under defined terms, this brake component is after the power supply of this actuator is cut off, rely on described spring force and guide rail moving contact, so that described lift car is slowed down and stop.And, when the brake equipment that has used the actuator with said structure uses as the elevator emergency brake device of when elevator car speed surpasses specified value lift car being braked, also as according to the EN81 specification and the overspeed preventing device of the lift car ascent direction of obligated installation uses.
Patent documentation 1: the spy opens flat 10-218524 communique (paragraph numbering 0008～0023, Fig. 2)
; in above-mentioned traditional braking device; in order to make brake component and guide rail moving contact that lift car is stopped by spring force, need to set the above spring force of certain value, and; when the lift car cruising; because the brake component that spring force is acted on thereon remains on release position always, actuator needs to overcome the actuation force of spring force, therefore; need high-capacity actuator, thereby the problem that device maximizes and cost of equipment increases can occur.In addition, even have in use under the situation of actuator of the attractive force that overcomes spring force,, then can cause the capacity of actuator further to increase if also need fully to guarantee gap between brake component and the guide rail.
Summary of the invention
In order to solve existing the problems referred to above in the conventional art, the object of the present invention is to provide a kind of emergency braking apparatus of elevator, this emergency braking apparatus can adopt the actuator of low capacity.
To achieve these goals, the emergency braking apparatus of elevator of the present invention, the framework that is installed on elevator car upper possesses: actuator, when its ascending velocity at described lift car surpasses specified value, perhaps described lift car with state of a control not when ascent direction travels, power supply is cut off; Brake component, along with the power supply of this actuator be cut off and with the guide rail moving contact, described lift car slowed down and stop; Spring, described brake component can be pushed towards described guide rail direction, the emergency braking apparatus of this elevator is characterised in that, be provided with described actuator in described framework and engage, and described brake component is remained on the holding device of position of readiness, can be shifted towards described rail-sides with being configured to, have described brake component that the deadweight of will relying on along with the release of described holding device falls towards with the guiding device of the dip plane of the Direction guide of described guide rail moving contact, and, described spring is configured to described guiding device is pushed towards described guide rail direction, rely on described spring by the described brake component that will rely on deadweight to fall in the gap between described guide rail and the described guiding device, by described guiding device towards described guide rail pushing and the acquisition braking force along with the release of described holding device.
In the present invention with said structure, when the speed of described lift car former thereby when surpassing specified value because of certain, perhaps described lift car with state of a control not when ascent direction travels, the power supply of described actuator is cut off, and after power supply was cut off, the described brake component that described holding device will be maintained at position of readiness usually discharged.After the release, described brake component relies on deadweight and falls in the gap between described guide rail and the described guiding device under the guiding of the described dip plane of described guiding device, simultaneously, along with described lift car further rises, described brake component compresses described spring by described guiding device.Along with to described compression of spring, described spring relies on its bounce, by described guiding device described brake component is pressed against on the described guide rail and produces braking force, thereby described lift car is slowed down and stop.Thus, owing to do not act on the described brake component at the spring force of described spring at ordinary times, so only need having at described holding fix, described actuator keep the actuation force of described brake component deadweight just can, therefore, the actuator that has the actuation force that overcomes spring force with in the past needs is compared, and can reduce the capacity of actuator.
The actuation force that actuator of the present invention only need have a degree that keeps described brake component deadweight just can, therefore can adopt the little actuator of capacity, and then miniaturization that can implement device, reduce cost of equipment.And, because the actuator deadweight that only is used to keep brake component, so can fully guarantee gap between brake component and the guide rail.
Description of drawings
Fig. 1 wants portion's birds-eye view for an embodiment of expression elevator emergency brake device of the present invention.
Fig. 2 wants portion's front elevation for an embodiment of expression emergency braking apparatus.
Fig. 3 is the enlarged drawing of brake component shown in the A part of Fig. 2.
Fig. 4 wants portion's lateral plan for an embodiment of expression emergency braking apparatus.
Fig. 5 is the integrally-built structural representation of expression emergency braking apparatus.
Fig. 6 is the enlarged drawing of velocity limiter shown in the B part of Fig. 5.
Among the figure, 1-hoist trunk, 2-guide rail, 3-lift car, 4-velocity limiter, 4a-velocity limiter switch for over speed detection, 5-governor sheave, 6-counterweight block, 7-overspeed governor, 8-velocity limiter signal wire (SW), 9-control part, 10-framework, 11-electromagnet, 12-brake component, 13-holding device, 13a-arm, 13b-plate, 13c-guiding bolt, 14-guiding device, 14a, 14b-guide plate member, 15-spring, 16-tail cable, 18a, 18b-pad, 19a, 19b-block nut, 20-axis body, 21-roller, 22-stop pin.
The specific embodiment
Followingly describe with reference to the embodiment of accompanying drawing to elevator emergency brake device of the present invention.
Fig. 1 wants portion's birds-eye view for an embodiment of expression elevator emergency brake device of the present invention, Fig. 2 wants portion's front elevation for an embodiment of expression emergency braking apparatus, Fig. 3 is the enlarged drawing of brake component shown in the A part of Fig. 2, Fig. 4 wants portion's lateral plan for an embodiment of expression emergency braking apparatus, Fig. 5 is expression emergency braking apparatus integrally-built structural representation, Fig. 6 be Fig. 5 B partly shown in the enlarged drawing of velocity limiter (governor).
As shown in Figure 5, the elevator emergency brake device of present embodiment has velocity limiter 4, be arranged on the governor sheave 5 on the velocity limiter 4, be arranged on the counterweight block 6 of hoist trunk 1 bottom and be wound on governor sheave 5 and counterweight block 6 on, be connected with lift car 3, and the overspeed governor 7 synchronously mobile with the lifting of lift car 3, wherein, velocity limiter 4 is arranged on the top of hoist trunk 1, detection is by guide rail 2 guiding, and whether the decline of the lift car 3 of lifting in hoist trunk 1 and ascending velocity exceed the speed limit, and when detecting hypervelocity lift car 3 is promptly stopped.
In addition, as shown in Figure 6, velocity limiter 4 has switch for over speed detection 4a, whether its ascending velocity that detects lift car 3 has reached 1.3 times of specified value for example, simultaneously, as shown in Figure 5, the actuating signal of switch for over speed detection 4a is sent to control part 9 by velocity limiter signal wire (SW) 8.
As depicted in figs. 1 and 2, the top of lift car 3 is provided with the framework 10 on the crossbeam (crosshead) that is installed in lift car 3, its power supply is cut off and the actuator of demagnetization when the ascending velocity of lift car 3 surpasses specified value, in demagnetization and guide rail 2 moving contacts according to this electromagnet 11, so that the brake component 12 that makes lift car 3 slow down and stop, engage with electromagnet 11, and brake component 12 is remained on holding device 13 on the position of readiness, be arranged to and be shifted towards guide rail 2 sides, have brake component 12 that the deadweight of will relying on along with the release of holding device 13 falls towards with the guiding device 14 of the dip plane of the Direction guide of guide rail 2 moving contacts, be configured to guiding device 14 is pushed towards guide rail 2 directions, thereby can be with the spring 15 of brake component 12 towards the pushing of guide rail 2 directions, and the below that is arranged on guiding device 14, and be installed on the framework 10, the brake component 12a that falls along with the release of holding device 13, the lower end of 12b is in contact with it, and can regulate the pad 18a of its height and position, 18b, wherein actuator for example is an electromagnet 11.In addition, when electromagnet 11 detects hypervelocity at switch for over speed detection 4a, the demagnetization by tail cable shown in Figure 5 16.
Described brake component 12 is made of the 1st brake component 12a and the 2nd brake component 12b, the 1st brake component 12a and the 2nd brake component 12b are configured to clamp guide rail 2 from both direction, brake component 12 is formed the chock shape, this chock shape have can with the vertical surface of guide rail 2 moving contacts and the dip plane that parallels with the dip plane of guiding device 14.
Described holding device 13 has an arm 13a, be installed in the plate 13b on the described other end of arm 13a and be installed on the plate 13b, brake component 12 is carried out the guiding bolt 13c of stop with its top, wherein the pars intermedia of this arm 13a is bearing on the framework 10 by axle, simultaneously, the one end engages with electromagnet 11, and its other end remains on position of readiness with brake component 12.
Described guiding device 14 has guide plate member 14a, 14b as shown in Figure 4, this guide plate member 14a, 14b have the brake component 12 that will fall along with the release of holding device 13 towards with the dip plane of the Direction guide of guide rail 2 moving contacts.Simultaneously, guide plate member 14a, 14b are fixed on the axis body 20, and the two ends of this axis body 20 by block nut 19a, 19b with can be supported, when brake component 12 falls towards the mode of framework 10 displacement, guide plate member 14a, 14b link respectively, thus about bear spring force equably.
Described spring 15 is made of disc spring, and this disc spring is arranged between framework 10 and the guiding device 14a, and axis body 20 inserts in these disc springs, and its internal diameter is directed.
In addition, as shown in Figure 3, be provided with roller 21 between brake component 12a and the guide plate member 14a, rely on deadweight to fall smoothly, be provided with the stop pin 22 that prevents that roller 21 from falling simultaneously in the lower end of brake component 12a to make things convenient for brake component 12a.And, be that example is described at this with brake component 12a, but brake component 12b also have identical structure.
In the emergency braking apparatus of present embodiment, the ascending velocity that detects lift car 3 as switch for over speed detection 4a is former thereby when surpassing specified value because of certain, the actuating signal of this switch for over speed detection 4a is sent to control part 9 by velocity limiter signal wire (SW) 8, and control part 9 makes electromagnet 11 demagnetizations by tail cable 16.After the demagnetization, the brake component 12 that holding device 13 will be maintained at position of readiness usually discharges.Promptly shown in the arrow C of Fig. 4, after electromagnet 11 demagnetizations, the excitation of the electromagnet 11 of the end of arm 13a is disengaged, and the other end of arm 13a descends under the effect of the weight of brake component 12, plate 13b and guiding bolt 13c.Brake component 12 is under the guiding of the dip plane of guide plate member 14a, 14b, rely on deadweight and fall in the gap between guide rail 2 and guiding device 14a, the 14b, simultaneously, along with lift car 3 further rises, brake component 12 is by guide plate member 14a, 14b compression spring 15.Along with the compression to spring 15, spring 15 relies on its bounces, by guide plate member 14a, 14b brake component 12 is pressed against on the guide rail 2 and produces braking force, thereby make lift car 3 decelerations and stop.And brake component 12 is when relying on deadweight to fall, and by contacting with pad 18a, 18b, its position, whereabouts is restricted.
Emergency braking apparatus according to present embodiment with said structure, owing to do not act on the brake component 12 at the spring force of spring 15 at ordinary times, so 11 need of electromagnet have keep brake component 12 deadweights at holding fix attractive force just can, therefore, can use the little actuator of capacity.In addition, because 11 deadweights that are used to keep brake component 12 of electromagnet, so can fully guarantee gap between brake component 12 and the guide rail 2.And, by the height of pad 18a, 18b is arranged to and can be regulated, thus can limit the position, whereabouts of the brake component 12 of chock shape, thus the compressive force of spring 15 is controlled, thus, can regulate the braking force of emergency braking apparatus.
And, in the present embodiment, be that example is described so that electromagnet 11 to be set as actuator, but also can use electrical motor and linear motor etc. as actuator.
In addition, in the present embodiment, brake component 12 is made of the 1st brake component 12a and the 2nd brake component 12b, the 1st brake component 12a and the 2nd brake component 12b are configured to clamp guide rail 2 from both direction, but the present invention is not limited to aforesaid way, brake component 12 also can by be arranged on relative with guide rail 2 to a side, rely on the movable brake component that deadweight falls along with the release of holding device 13 and be arranged on relative with guide rail 2 to a side, adopted the fixedly brake component formation of fixed form.In addition, in the present embodiment, holding device 13 is made of arm 13a, plate 13b and guiding bolt 13c, but the present invention is not limited to aforesaid way, if have the space is set fully, also arm be can not pass through, and the maintenance and the release of brake component carried out by electromagnet 11 13b such as plate such as direct control such as actuator such as grade.And, in the present embodiment, the 1st brake component 12a and the 2nd brake component 12b be formed respectively have can with the chock shape of the vertical surface of guide rail 2 moving contacts and the dip plane that parallels with the dip plane of guiding device 14, but the present invention is not limited to aforesaid way, brake component for example also can form other shapes such as oblong, perhaps only one of them brake component is formed the chock shape.And, also can form two contacts by switch for over speed detection with elevator governor, perhaps amplify by the actuating signal of the switch that will be provided with, whether the ascending velocity that detects lift car 3 has surpassed specified value, and perhaps whether lift car 3 travels at state of a control lower edge ascent direction not.
Claims (4)
1. the emergency braking apparatus of an elevator, the framework that is installed on elevator car upper possesses: actuator, when it surpasses specified value in ascending velocity of described lift car, perhaps described lift car with state of a control not when ascent direction travels, power supply is cut off; Brake component, its power supply along with this actuator be cut off and with the guide rail moving contact, described lift car slowed down and stop; Spring, it can push described brake component towards described guide rail direction, and the emergency braking apparatus of this elevator is characterised in that,
Be provided with described actuator in described framework and engage, and described brake component is remained on the holding device of position of readiness, can be shifted towards described rail-sides with being configured to, have described brake component that the deadweight of will relying on along with the release of described holding device falls towards with the guiding device of the dip plane of the Direction guide of described guide rail moving contact, and, described spring is configured to described guiding device is pushed towards described guide rail direction, rely on described spring by the described brake component that will rely on deadweight to fall in the gap between described guide rail and the described guiding device, by described guiding device towards described guide rail pushing and the acquisition braking force along with the release of described holding device.
Described holding device, pars intermedia is bearing on the described framework by axle, and, have arm, the one end engages with electromagnet, and its other end remains on described brake component on the position of readiness, after described electromagnet is by demagnetization, be disengaged and another distolateral decline with engaging between the described electromagnet, this electromagnet uses as described actuator
Described guiding device is fixed on the axis body, and this axis body is can being supported to the mode of described framework displacement, and described spring is arranged between described framework and the described guiding device, and described axis body inserts in the described spring, and the internal diameter of described spring is directed.
2. the emergency braking apparatus of elevator according to claim 1, it is characterized in that, pad is set below described guiding device, following end in contact with the described brake component that falls along with the release of described holding device, by regulating the height of this pad, can change the thrust pressure of described spring.
3. the emergency braking apparatus of elevator according to claim 1, it is characterized in that, described brake component is provided with two, to clamp described guide rail from both direction, described guiding device have relatively to two dip plane, two described brake components that these two dip plane will fall along with the release of described holding device respectively towards with the Direction guide of described guide rail moving contact.
4. the emergency braking apparatus of elevator according to claim 1, it is characterized in that, described brake component is formed the chock shape, this chock shape have can with the vertical surface of described guide rail moving contact and the dip plane that parallels with the described dip plane of described guiding device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005168371 | 2005-06-08 | ||
| JP2005168371A JP4594803B2 (en) | 2005-06-08 | 2005-06-08 | Elevator emergency stop device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1876546A CN1876546A (en) | 2006-12-13 |
| CN100572246C true CN100572246C (en) | 2009-12-23 |
Family
ID=37509144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100912296A Expired - Fee Related CN100572246C (en) | 2005-06-08 | 2006-06-07 | The emergency braking apparatus of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4594803B2 (en) |
| CN (1) | CN100572246C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4966740B2 (en) * | 2007-05-23 | 2012-07-04 | 株式会社日立製作所 | Elevator emergency stop device |
| ES2547483T3 (en) * | 2007-12-10 | 2015-10-06 | Otis Elevator Company | Lift brake device that includes permanent magnet polarization to apply a braking force |
| CN102730512A (en) * | 2012-06-20 | 2012-10-17 | 卡姆丹克太阳能（江苏）有限公司 | Gradual elevator safety tong |
| CN103552271B (en) * | 2013-11-08 | 2016-07-06 | 湘潭大学 | A kind of trash compactor dividing plate automatic block-resistant plug device |
| DE202017103555U1 (en) * | 2017-06-14 | 2017-07-20 | Wittur Holding Gmbh | Auxiliary drive for a safety brake device |
| EP3527524B1 (en) * | 2018-02-15 | 2021-01-20 | Otis Elevator Company | Elevator safety actuator |
| DE202019103423U1 (en) * | 2019-06-18 | 2019-06-28 | Wittur Holding Gmbh | Brake device with automatic release in all operating conditions |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI85129C (en) * | 1989-12-14 | 1992-03-10 | Kone Oy | catching device |
| JP2512341B2 (en) * | 1990-08-03 | 1996-07-03 | 三菱電機株式会社 | Hydraulic elevator test equipment |
| JPH09286581A (en) * | 1996-04-25 | 1997-11-04 | Hitachi Ltd | Brake device for passenger conveyor |
| CN1267332C (en) * | 2000-06-22 | 2006-08-02 | 因温特奥股份公司 | Brake arresting device with adaptable brake force for lift |
| JP4802373B2 (en) * | 2001-02-15 | 2011-10-26 | フジテック株式会社 | Elevator safety device |
| JP4245392B2 (en) * | 2003-03-27 | 2009-03-25 | 東芝エレベータ株式会社 | Elevator car door device |
| JPWO2005115905A1 (en) * | 2004-05-27 | 2008-03-27 | 三菱電機株式会社 | Elevator equipment |
-
2005
- 2005-06-08 JP JP2005168371A patent/JP4594803B2/en not_active Expired - Fee Related
-
2006
- 2006-06-07 CN CNB2006100912296A patent/CN100572246C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006341953A (en) | 2006-12-21 |
| JP4594803B2 (en) | 2010-12-08 |
| CN1876546A (en) | 2006-12-13 |
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| 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 | ||
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Granted publication date: 20091223 Termination date: 20210607 |