CN102674108B - Electronic control brake device for elevator cage - Google Patents

Electronic control brake device for elevator cage Download PDF

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Publication number
CN102674108B
CN102674108B CN201210175291.9A CN201210175291A CN102674108B CN 102674108 B CN102674108 B CN 102674108B CN 201210175291 A CN201210175291 A CN 201210175291A CN 102674108 B CN102674108 B CN 102674108B
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China
Prior art keywords
fixture block
safety tongs
wire holder
rope
electromagnet
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CN201210175291.9A
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CN102674108A (en
Inventor
邓之江
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JIANGMEN MODROL ELECTRIC CO Ltd
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JIANGMEN MODROL ELECTRIC CO Ltd
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Abstract

The invention discloses an electronic control brake device for an elevator cage. The electronic control brake device comprises a limiter arranged above the elevator cage; a steel wire rope for drawing the elevator cage penetrates through the limiter; a guide rail on which the elevator cage moves is provided with safety tongs; the steel wire rope is provided with a connection rod which is connected with one end of a draw bar, and the other end of the draw bar is connected to the safety tongs and is used for triggering the safety tongs; a rope gripper for clamping the steel wire rope is arranged beneath the limiter; electromagnet which drives the rope gripper to act to clamp the steel wire rope is arranged in the rope gripper; and an electromagnet coil is arranged in the electromagnet. According to the design, the rope gripper which can trigger the safety tongs to act is arranged, so that the action of the safety tongs can be subjected to electronic control, and the electronic control brake device has the characteristics of low requirement on braking force, no limit to limiting velocity, capacity of triggering the safety tongs differently, and simplicity in triggering and is easy and convenient to install.

Description

A kind of automatically controlled elevator car braking apparatus
Technical field
The present invention relates to a kind of safety guard of towed elevator, belong to elevator safety resist technology field, be specifically related to a kind of automatically controlled elevator car braking apparatus.
Background technology
Elevator is a kind of for the vertical transportation transportation means in building, can make safely and reliably elevator out of service and make elevator keep halted state be very important, this is the necessary condition that elevator is allowed use.Most elevators are all the traction elevators by rope traction, and the common stopping device of towed elevator has following three kinds:
(1) band brake apparatus.Generally be arranged on elevator traction machine, act on the axle of traction sheave that drives traction steel-cable, by the friction force stop steel rope of traction sheave and traction steel-cable, make lift car out of service and remain on halted state.
Band brake apparatus belongs to the brake equipment of normal operation, when the normal flat bed of elevator, makes lift car keep halted state by band brake apparatus.Its shortcoming is: in the time that the braking force deficiency of band brake apparatus, steel rope or traction sheave wearing and tearing cause between friction force deficiency or band brake apparatus and traction sheave that mechanical connection lost efficacy, may cause lift car to move under door opening state, cause shearing accident, also may cause lift car rush to summit or squat the end.
(2) safety tongs.Generally be arranged on lift car or counterweight frame, it triggers voussoir and handled by velocity limiter by steel rope, in the time of elevator overspeed or disconnected rope, velocity limiter action, clamping steel wire rope, thus pull voussoir, trigger safety tongs action, be clamped and installed in the guide rail in hoistway, make lift car or counterweight frame out of service.
Safety tongs is the necessary safety device of elevator regulations of rules, even if can guarantee also can be by lift car safe stop in the situation that of traction steel-cable complete rupture for it.But safety tongs is in the situation that lift car exceeds the speed limit, to be triggered mechanically by steel cable by velocity limiter, can not, by automatically controlled triggering, can not the in the situation that of low speed, move, the brake equipment while belonging to abnormal running.
(3) wire holder.Generally be arranged on towing machine or towing machine side, traction steel-cable passes therethrough, and is generally triggered by velocity limiter electric control circuit, and in the time of elevator overspeed or disconnected rope, wire holder clamps traction steel-cable, thus stop elevator.
Wire holder is a kind of automatically controlled brake equipment, can detect when abnormal thereby its action is clamped steel rope by lift car stop at elevator control gear, but its action object is traction steel-cable, very high to the requirement of braking force, have that the life-span is short, cost is high, installation is difficult and the shortcoming of difficult recovery.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides and a kind ofly can, by the elevator car braking apparatus of automatically controlled triggering under any condition, ensure the reliability of elevator brake, the safety that improves elevator.
The technical solution adopted for the present invention to solve the technical problems is:
An automatically controlled elevator car braking apparatus, comprises the velocity limiter that is arranged on lift car top, for the steel wire penetrating velocity limiter of traction elevator car, on the guide rail for elevator cab movement, is provided with safety tongs; On steel rope, be provided with pipe link, pipe link is connected with one end of pull bar, the other end of pull bar connects safety tongs and for triggering safety tongs, the below of velocity limiter is also provided with the wire holder for clamping steel wire rope, in described wire holder, be provided with the electromagnet that drives its action clamping steel wire rope, in electromagnet, be provided with magnet coil.
As the further improvement of technique scheme, described wire holder comprises the moving fixture block and the quiet fixture block that are arranged on steel rope both sides, and described moving fixture block is movably arranged in wire holder by fork, and the moving fixture block of solenoid actuated rotates around fork.
As the further improvement of technique scheme, described quiet fixture block is connected in wire holder by spring and adjusting bolt, and spring and adjusting bolt are for regulating the position of quiet fixture block to change the gripping power of wire holder.
As the further improvement of technique scheme, on described moving fixture block, be provided with two forks, described two forks are parallel to each other.
The invention has the beneficial effects as follows: prior art is compared that the elevator car braking apparatus based on automatically controlled of the present invention, owing to having retained traditional " velocity limiter-safety tongs " safety guard, has braking failure-free advantage; Install by the automatically controlled wire holder of controller owing to only need add below velocity limiter, have low to required braking force, be not subject to terminal speed to limit, can trigger discriminatively safety tongs, simple installation, the simple feature of triggering.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of wire holder in the present invention.
Drawing reference numeral explanation: 1, rope sheave, 2, velocity limiter, 3, wire holder, 4, lift car, 5, steel rope, 6, tension wheel, 7, guide rail, 8, voussoir, 9, safety tongs, 10, pull bar, 11, pipe link, 12, magnet coil, 13, electromagnet, 14, fork, 15, fork, 16, moving fixture block, 17, quiet fixture block, 18, spring, 19, adjusting bolt.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.The present embodiment is implemented under taking technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the structural representation of a kind of automatically controlled elevator car braking apparatus provided by the invention, this brake equipment comprises velocity limiter 2, wire holder 3 and safety tongs 9.
Velocity limiter 2 is arranged on lift car 4 tops, velocity limiter 2 is preferably conventional centrifugal type or resonance type velocity limiter, comprise rope sheave 1, steel rope 5, tension wheel 6 and overspeed switch and action component etc., in the time that the running velocity of lift car 4 exceedes setting speed, velocity limiter 2 output actions clamp steel rope 5, pull the voussoir 8 of safety tongs 9 inside by being arranged on connecting rod 11 on steel rope 5 and pull bar 10, trigger safety tongs 9 and move, lift car 4 is braked on guide rail 7.
Wire holder 3 is arranged on the below of velocity limiter 2, and steel rope 5 passes after walking around velocity limiter 2 rope sheaves 1 from wire holder 3.As shown in Figure 2, wire holder 3 comprises magnet coil 12, electromagnet 13, two forks 14 parallel to each other, 15, moving fixture block 16, quiet fixture block 17, spring 18 and adjusting bolt 19, magnet coil 12 is around the home in electromagnet 13, moving fixture block 16 is by fork 14, 15 are connected with wire holder 3 inwalls, moving fixture block 16 rotates taking fork as axle, electromagnet 13 is arranged on moving fixture block 16 1 sides, quiet fixture block 17 and moving fixture block 16 are separately positioned on the both sides through the steel rope 5 of wire holder 3, spring 18 is arranged on quiet fixture block 17 afterwards and is connected quiet fixture block 17 and wire holder 3 with adjusting bolt 19.
The working process of wire holder 3 is: when wire holder 3 electric life controller output signal make magnet coil 12 when electric, electromagnet 13 moves, under electromagnetic force, drive moving fixture block 16 to rotate counterclockwise around the strong point of fork 14,15, clamping steel rope 5 with under the cooperation of quiet fixture block 17, then pull voussoir 8 by connecting rod 11 and pull bar 10, trigger safety tongs 9 and move, lift car 4 is braked on guide rail 7.This wire holder 3 is by automatically controlled trigger action, even magnet coil 12 dead electricity after action, steel rope 5 still remains in clamped condition, only has by M/C and could be reset to open configuration.
Further, the gripping power of this wire holder 3 can be adjusted by quiet fixture block 17 spring 18 and adjusting bolt 19 below.
Prior art is compared, and the elevator car braking apparatus based on automatically controlled of the present invention, owing to having retained traditional " velocity limiter-safety tongs " safety guard, has braking failure-free advantage; The design is the additional wire holder 3 of being controlled by controller of installing below velocity limiter 2 simultaneously, wire holder 3 can carry out automatically controlled easily, the rear drive safety tongs 9 of wire holder 3 clamping steel wire rope 5 moves, this improvement makes safety tongs 9 become electric control braking, can easily control, instead of can only under overspeed situation, carry out the braking of safety tongs 9.Brake equipment control of the present invention is convenient, is convenient to test and safeguards, have low to required braking force, be not subject to terminal speed restriction, can trigger discriminatively safety tongs 9, simple installation, the simple feature of triggering.
The foregoing is only preferential embodiment of the present invention, as long as within the technical scheme that realizes the object of the invention with basic identical means all belongs to protection scope of the present invention.

Claims (3)

1. an automatically controlled elevator car braking apparatus, comprise the velocity limiter (2) that is arranged on lift car (4) top, steel rope (5) for traction elevator car (4) passes velocity limiter (2), on the guide rail (7) for lift car (4) motion, is provided with safety tongs (9), on steel rope (5), be provided with pipe link (11), pipe link (11) is connected with one end of pull bar (10), the other end of pull bar (10) connects safety tongs (9) and for triggering safety tongs (9), it is characterized in that: the below of velocity limiter (2) is also provided with the wire holder (3) for clamping steel wire rope (5), in described wire holder (3), be provided with the electromagnet (13) that drives its action clamping steel wire rope (5), in electromagnet (13), be provided with magnet coil (12), described wire holder (3) comprises the moving fixture block (16) and the quiet fixture block (17) that are arranged on steel rope (5) both sides, described moving fixture block (16) is by fork (14, 15) be movably arranged in wire holder (3), electromagnet (13) drives moving fixture block (16) around fork (14, 15) rotate.
2. a kind of automatically controlled elevator car braking apparatus according to claim 1, it is characterized in that: described quiet fixture block (17) is connected in wire holder (3) by spring (18) and adjusting bolt (19), spring (18) and adjusting bolt (19) are for regulating the position of quiet fixture block (17) to change the gripping power of wire holder (3).
3. a kind of automatically controlled elevator car braking apparatus according to claim 1, is characterized in that: on described moving fixture block (16), be provided with two forks (14,15), described two forks (14,15) are parallel to each other.
CN201210175291.9A 2012-05-30 2012-05-30 Electronic control brake device for elevator cage Active CN102674108B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210175291.9A CN102674108B (en) 2012-05-30 2012-05-30 Electronic control brake device for elevator cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210175291.9A CN102674108B (en) 2012-05-30 2012-05-30 Electronic control brake device for elevator cage

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CN102674108A CN102674108A (en) 2012-09-19
CN102674108B true CN102674108B (en) 2014-12-17

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2012264897A1 (en) * 2011-05-30 2013-08-22 Inventio Ag Controllable elevator brake
CN103244581B (en) * 2013-05-07 2016-02-17 西北工业大学 Spatial tether system elastic clamp piece brake mechanism
CN105236235B (en) * 2015-10-16 2018-11-02 中联重科股份有限公司 The control method of accidental movement of elevator cage protective device, brake unit and brake unit
CN105438944B (en) * 2016-01-15 2017-08-25 河南省特种设备安全检测研究院商丘分院 The two-way anti-shear protective system of elevator
CN106081783B (en) * 2016-08-30 2018-10-02 常熟市佳能电梯配件有限公司 A kind of electromagnetic brake and braking method preventing accidental movement of elevator cage
CN108937487B (en) * 2018-06-28 2020-12-15 安徽高盛雨具有限公司 Large-capacity umbrella storage device
CN112932239A (en) * 2018-06-28 2021-06-11 六安微领时代工业智能科技有限公司 Tightening mechanism in umbrella storage device

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
CN2430417Y (en) * 2000-06-23 2001-05-16 杭州西子奥的斯电梯有限公司 Life speed limiter without machine room
TW513374B (en) * 2000-12-08 2002-12-11 Inventio Ag Safety brake with retardation-dependent braking force
CN101428722B (en) * 2004-04-20 2012-09-05 三菱电机株式会社 Emergency stop system for elevator
CN2741943Y (en) * 2004-10-04 2005-11-23 盖明利 Special device for mounting lift
CN2839230Y (en) * 2005-05-18 2006-11-22 罗海涛 The elevator wire holder
CN201190062Y (en) * 2008-03-07 2009-02-04 康力电梯股份有限公司 Safety tong linkage for elevator
CN201961919U (en) * 2011-01-31 2011-09-07 沈阳博林特电梯股份有限公司 Overspeed governor that has electromagnetic brake and photoelectric encoder
CN202643033U (en) * 2012-05-30 2013-01-02 江门市蒙德电气股份有限公司 Electronic control elevator car braking device

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