CN113071970B - Electric control type safety gear trigger device - Google Patents
Electric control type safety gear trigger device Download PDFInfo
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- CN113071970B CN113071970B CN202110340799.9A CN202110340799A CN113071970B CN 113071970 B CN113071970 B CN 113071970B CN 202110340799 A CN202110340799 A CN 202110340799A CN 113071970 B CN113071970 B CN 113071970B
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- main shaft
- electromagnetic
- torsion spring
- piece
- gear
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- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of elevator speed limiting equipment, and provides an electric control type safety gear triggering device which comprises a main shaft, a triggering component and an action component, wherein the main shaft is rotatably arranged on a car frame; the main shaft is provided with a lifting rod, and the tail end of the lifting rod is connected with a safety tongs wedge block; the trigger assembly comprises a magnetic part and an electromagnetic part, the magnetic part is arranged on the main shaft and rotates synchronously with the main shaft, and the electromagnetic part is correspondingly arranged on a rotating track of the magnetic part; the action assembly comprises a torsion spring which is serially arranged on the periphery of the main shaft, one end of the torsion spring is fixedly arranged outside, and the other end of the torsion spring is fixedly connected with the main shaft; and when the magnetic part moves towards the electromagnetic part, the main shaft stretches or compresses the torsion spring. The invention can effectively reduce the occupation of the safety gear device on the well space, reduce the investment cost and is more convenient to debug and maintain.
Description
Technical Field
The invention belongs to the technical field of elevator speed limiting equipment, and particularly relates to an electric control type safety gear triggering device.
Background
At present, a mechanical speed limiter-safety gear system is widely applied to various types of elevators as one of conventional safety devices of the elevators. When the elevator is overspeed, runs out of control or the suspension device is broken, the speed limiter acts rapidly to trigger the safety tongs to generate linkage, so that the elevator car is stopped on the guide rail and kept in a static state, and casualties and equipment damage accidents are avoided.
However, the conventional mechanical speed limiter system is complex in composition, needs to occupy a large hoistway space, is troublesome in debugging and maintenance and has high investment cost.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, an object of the present invention is to provide an electrically controlled safety gear triggering device, so as to effectively reduce the occupation of the safety gear device on the hoistway space, reduce the investment cost, and make the debugging and maintenance more convenient.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an electric control type safety gear triggering device comprises a main shaft, a triggering assembly and an action assembly, wherein the main shaft is rotatably arranged on a car frame;
a lifting rod is arranged on the main shaft, and the tail end of the lifting rod is connected with a safety tong wedge block;
the trigger assembly comprises a magnetic part and an electromagnetic part, the magnetic part is arranged on the main shaft and rotates synchronously with the main shaft, and the electromagnetic part is correspondingly arranged on a rotating track of the magnetic part;
the action assembly comprises a torsion spring which is serially arranged on the periphery of the main shaft, one end of the torsion spring is fixedly arranged outside, and the other end of the torsion spring is fixedly connected with the main shaft; and when the magnetic attraction piece moves towards the electromagnetic piece, the main shaft stretches or compresses the torsion spring.
Preferably, when the magnetic attraction piece moves towards the electromagnetic piece, the main shaft compresses the torsion spring.
Preferably, a fixed seat is arranged at one end fixedly arranged outside the torsion spring, and the fixed seat is arranged on the car frame.
Preferably, the electromagnetic member is electrically connected with an electric control system of the elevator.
Preferably, the spindle is provided with a plurality of swing rods, and the starting end of the lifting rod is arranged on the swing rods.
Preferably, the swing rods are arranged at two ends of the main shaft and hinged with the lifting rod to be in transmission connection with the safety gear wedge block.
Preferably, the magnetic attraction device further comprises a reset assembly, wherein the reset assembly comprises a power source, and the power source is in transmission connection with the main shaft and can enable the magnetic attraction piece to move to abut against and contact with the electromagnetic piece.
Preferably, the power source is a driving motor, a driving gear is arranged on a rotating shaft of the driving motor, a driven gear is arranged on the main shaft, and the driving gear is meshed with the driven gear.
Preferably, the driven gear comprises an outer toothed ring, and a ratchet and pawl mechanism is arranged between the outer toothed ring and the main shaft.
Preferably, a mounting seat is arranged corresponding to the driving motor, and the mounting seat is arranged on the car frame.
Compared with the prior art, the invention has the beneficial effects that:
the main shaft is directly connected with the safety gear wedge block through the lifting rod, so that the operation of the safety gear can be directly controlled by controlling the rotation of the main shaft, and a brand new structure form of the safety gear trigger device is provided; through setting up this scheme, can simplify safety tongs trigger device's part setting widely, compare in traditional technology, this scheme has cancelled overspeed governor, wire rope and overspeed device tensioner's setting, has reduced input cost and maintenance frequency widely, and the maintenance operation is simpler, concentrated.
Simultaneously, supporting being provided with in this scheme triggers the subassembly, the magnetic force in order to control the production through the on state of control electromagnetism piece to realize the actuation and the release of magnetism piece of inhaling, and when the outage of electromagnetism piece, magnetism is inhaled the piece and is lost magnetism and inhale the power and make the main shaft produce the rotation under the effect of torsional spring, thereby realizes carrying and drawing to the safety tongs voussoir, in order to trigger the safety tongs action. The electromagnetic part that sets up is connected with car operation control system electricity for the reaction that triggers the subassembly can be more accurate, can drive the rotation of main shaft moreover through the elastic action of torsional spring, and whole structural design is ingenious, and the operation and the debugging are more simple and convenient, has reduced the occupation of safety tongs device to the well space widely, and application scope is wide.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention from a view angle.
Fig. 2 is a schematic structural diagram of another view angle of the present invention.
Fig. 3 is a schematic view of the mounting structure of the present invention.
Fig. 4 is a schematic structural diagram of the driven gear of the invention.
Wherein:
1-a main shaft, 11-a swing rod, 12-a driven gear and 121-an external gear ring;
2-trigger component, 21-magnetic attraction component, 22-electromagnetic component;
3-action component, 31-torsion spring, 32-fixing seat;
4-a reset component, 41-a driving motor, 42-a driving gear and 43-a mounting seat;
5-lifting rod, 6-safety tongs wedge block.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be made with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1 to 4, the present embodiment provides an electric control type safety gear triggering device, which mainly includes a main shaft 1, a triggering component 2, an action component 3, and a resetting component 4.
Specifically, in this embodiment, the main shaft 1 is provided with a lifting rod 5, and the tail end of the lifting rod 5 is connected to a safety gear wedge 6, so that when the main shaft 1 rotates to drive the lifting rod 5 to move, the safety gear wedge 6 causes the safety gear to lock, so as to stop the car.
As a preferable scheme, a plurality of swing rods 11 are arranged on the main shaft 1, and the starting end of the lifting rod 5 is arranged on the swing rods 11. Because the connection point of the swing link 11 and the lifting rod 5 is far away from the axis of the main shaft 1, the arrangement of the swing link 11 can amplify the rotation effect of the main shaft 1, and in the practical application process, the swing link 11 can also be arranged in a wheel-shaped structure, and the starting end of the lifting rod 5 is arranged on the side surface or the wheel surface of the wheel-shaped structure, which can also play the same role as the scheme, and is not described herein again. Further, in this embodiment, the swing rods 11 are disposed at both ends of the main shaft 1, the swing rods 11 are hinged to the starting ends of the lifting rods 5, and the main shaft 1 is hinged to the lifting rods 5 through the swing rods 11 to be connected with the safety gear wedges 6 in a transmission manner.
The trigger component 2 includes a magnetic component 21 and an electromagnetic component 22, in this embodiment, the magnetic component 21 is set as an armature, and the electromagnetic component 22 is set as an electromagnet; the magnetic part 21 is arranged on the main shaft 1 and rotates synchronously with the main shaft 1, and the electromagnetic part 22 is correspondingly arranged on the rotation track of the magnetic part 21 so as to realize the relative limitation of the rotation range of the main shaft 1. In addition, the electromagnetic member 22 is electrically connected with an electric control system of the elevator to realize electric linkage control.
Further, the action assembly 3 comprises a torsion spring 31 which is serially arranged on the periphery of the main shaft 1, one end of the torsion spring 31 is fixedly arranged outside, and the other end of the torsion spring 31 is fixedly connected with the main shaft 1; when the magnetic attraction piece 21 moves towards the electromagnetic piece 22, the main shaft 1 stretches or compresses the torsion spring 31 to store energy in the torsion spring 31, and when the torsion spring 31 releases the stored energy, the main shaft 1 is driven to rotate.
Preferably, when the magnetic attraction piece 21 moves towards the electromagnetic piece 22, the main shaft 1 compresses the torsion spring 31, so that the torsion spring 31 is restored by elasticity to drive the main shaft 1 to rotate. In the practical application process, when the magnetic member 21 moves toward the electromagnetic member 22, the main shaft 1 can be set to stretch the torsion spring 31, wherein the principle is the same; however, in the case of stretching the torsion spring 31, it is considered that the torsion spring 31 is more easily weakened or even failed due to long-term stretching, so that it is preferable to compress the torsion spring 31 in this embodiment to prolong the service life of the trigger device.
In this embodiment, a fixing seat 32 is disposed at one end of the torsion spring 31 fixed to the outside, and the spindle 1 is rotatably mounted on the car frame through the torsion spring 31 and the fixing seat 32.
The reset assembly 4 includes a power source, which in this embodiment is preferably configured as a drive motor 41; the power source is connected with the main shaft 1 in a transmission way and can enable the magnetic attraction piece 21 to move to abut against and contact the electromagnetic piece 22. The reset component 4 is arranged to assist the reset rotation of the main shaft 1, and provides a force for overcoming the elasticity of the torsion spring 31 when the main shaft 1 is reset, so that the magnetic attraction piece 21 can be in contact connection with the electromagnetic piece 22 more quickly and smoothly, and the trigger device is restored to a standby state.
As a preferable scheme, a driving gear 42 is disposed on a rotating shaft of the driving motor 41, and a driven gear 12 is disposed on the main shaft 1, and the driving gear 42 is engaged with the driven gear 12, so that the driving motor 41 is driven, and the main shaft 1 can be driven to rotate by the rotation of the driving motor 41. Further, the driven gear 12 includes an external gear ring 121, a ratchet and pawl mechanism is disposed between the external gear ring 121 and the main shaft 1, and the provided ratchet and pawl mechanism enables the main shaft 1 to rotate more smoothly under the elastic recovery action of the torsion spring 31, so as to avoid the increase of the rotational resistance of the main shaft 1 due to the meshing between the gears; when the main shaft 1 needs to be reset, the ratchet and pawl mechanism has a mutual abutting effect, so that the meshing transmission between the driving gear 42 and the driven gear 12 is realized.
In addition, a mounting seat 43 is also arranged corresponding to the driving motor 41, and the driving motor 41 is mounted on the car frame through the mounting seat 43, so that the mounting is simpler and more convenient.
When the elevator is in a normal operation state, the electromagnetic member 22 is in a power-on state, the magnetic member 21 is attracted to the electromagnetic member 22 due to the electromagnetic attraction, and meanwhile, the magnetic attraction generated by the electromagnetic member 22 resists the pre-torsion force of the torsion spring 31, so that the whole triggering device is kept in a balance state.
When the elevator is in an abnormal operation state, such as overspeed operation, at this time, the electric control system of the elevator controls the electromagnetic part 22 to be in a power-off state, so that the magnetic part 21 loses electromagnetic attraction, at this time, the torsion spring 31 recovers to a natural state due to pre-applied torsion and drives the main shaft 1 to rotate, and further drives the swing rod 11 on the main shaft 1 to swing, so as to drive the lifting rod 5 to pull up the safety gear wedge block 6, and the safety gear is locked to realize elevator braking.
When the elevator returns to the normal operation state, the triggering device is reset, at this time, the electric control system drives the driving motor 41 to rotate so as to drive the main shaft 1 to rotate and overcome the elastic force of the torsion spring 31 to apply the pre-torsion force again until the magnetic attraction piece 21 touches the electromagnetic piece 22, at this time, the electromagnetic piece 22 is electrified to adsorb the magnetic attraction piece 21 on the electromagnetic piece 22 again, and the whole triggering device returns to the standby state.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. An electric control type safety gear triggering device is characterized by comprising a main shaft, a triggering component and an action component, wherein the main shaft is rotatably arranged on a car frame;
the main shaft is provided with a lifting rod, the tail end of the lifting rod is connected with a safety tongs wedge block, the main shaft is provided with a plurality of swing rods, and the starting end of the lifting rod is arranged on the swing rods;
the trigger assembly comprises a magnetic part and an electromagnetic part, the magnetic part is arranged on the main shaft and rotates synchronously with the main shaft, and the electromagnetic part is correspondingly arranged on a rotating track of the magnetic part;
the action assembly comprises a torsion spring which is serially arranged on the periphery of the main shaft, one end of the torsion spring is fixedly arranged outside, and the other end of the torsion spring is fixedly connected with the main shaft; when the magnetic part moves towards the electromagnetic part, the main shaft stretches or compresses the torsion spring;
the magnetic attraction device is characterized by further comprising a reset assembly, wherein the reset assembly comprises a power source, the power source is installed on the car frame and is in transmission connection with the main shaft, the magnetic attraction piece can move to abut against and contact with the electromagnetic piece, the power source is a driving motor, a rotating shaft of the driving motor is provided with a driving gear, the main shaft is provided with a driven gear, the driving gear is in meshed connection with the driven gear, the driven gear comprises an outer toothed ring, and a ratchet and pawl mechanism is arranged between the outer toothed ring and the main shaft;
when the elevator normally operates, the electromagnetic piece is in a power-on state, the magnetic piece is in contact with the electromagnetic piece at the moment, and the magnetic attraction force between the electromagnetic piece and the magnetic piece is greater than the pre-torsion force of the torsion spring;
when the elevator runs abnormally, the electromagnetic part is in a power-off state, the magnetic part is separated from the electromagnetic part at the moment, the lifting rod pulls the safety wedge block to lock the safety tongs, the elevator stops when the safety tongs are locked, and the outer gear ring idles relative to the main shaft;
when the running state of the elevator is recovered to normal from abnormal conditions, the electric control system drives the power source to drive the main shaft to rotate until the magnetic attraction piece is in contact with the electromagnetic piece, at the moment, the electromagnetic piece is in a power-on state and is adsorbed on the electromagnetic piece again, the lifting rod is driven by the main shaft to rotate downwards, the safety wedge block descends, the safety tongs are released from a locking state, the driving motor is started, and the outer gear ring is in ratchet meshing transmission with the main shaft.
2. The electrically controlled safety gear trigger device according to claim 1, wherein the main shaft compresses the torsion spring when the magnetic member moves toward the electromagnetic member.
3. The electrically controlled safety gear triggering device according to claim 2, wherein a fixing seat is disposed at one end of the torsion spring, which is fixedly disposed outside the torsion spring, and the fixing seat is disposed on the car frame.
4. An electrically controlled safety gear triggering device according to claim 1, characterized in that the electromagnetic element is electrically connected to the elevator's electrical control system.
5. The electrically controlled safety gear triggering device according to claim 1, wherein the swing rods are disposed at both ends of the main shaft, and the swing rods are hinged to the lifting rod to be in transmission connection with the safety gear wedge blocks.
6. The electrically controlled safety gear triggering device as claimed in claim 1, wherein a mounting seat is provided corresponding to the driving motor, and the mounting seat is mounted on the car frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340799.9A CN113071970B (en) | 2021-03-30 | 2021-03-30 | Electric control type safety gear trigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340799.9A CN113071970B (en) | 2021-03-30 | 2021-03-30 | Electric control type safety gear trigger device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113071970A CN113071970A (en) | 2021-07-06 |
| CN113071970B true CN113071970B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110340799.9A Active CN113071970B (en) | 2021-03-30 | 2021-03-30 | Electric control type safety gear trigger device |
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| Country | Link |
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| CN (1) | CN113071970B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4209251B2 (en) * | 2003-05-16 | 2009-01-14 | 三菱電機株式会社 | Elevator emergency stop device |
| CN101428722B (en) * | 2004-04-20 | 2012-09-05 | 三菱电机株式会社 | Emergency stop system for elevator |
| CN203143865U (en) * | 2013-04-07 | 2013-08-21 | 上海微频莱机电科技有限公司 | Elevator safety gear triggered by electromagnetic force |
| CN106185524B (en) * | 2016-09-26 | 2018-08-24 | 常熟理工学院 | Elevator prevents car accidental movement and the safety guard of hypervelocity |
| CN108408530B (en) * | 2018-03-17 | 2019-12-06 | 河南理工大学 | Two-way overspeed protection device for linear motor direct-drive elevator |
| CN209081176U (en) * | 2018-11-26 | 2019-07-09 | 西继迅达（许昌）电梯有限公司 | A kind of machine room upper beam that linkage mechanism being electronically activated with safety tongs |
| EP3670414B1 (en) * | 2018-12-20 | 2023-06-14 | KONE Corporation | An elevator safety gear trigger and reset system |
| CN211594722U (en) * | 2019-12-19 | 2020-09-29 | 怡达快速电梯有限公司 | Counterweight safety protection device |
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2021
- 2021-03-30 CN CN202110340799.9A patent/CN113071970B/en active Active
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| CN113071970A (en) | 2021-07-06 |
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