CN109665419A - A kind of drag device with manual rescue device - Google Patents

A kind of drag device with manual rescue device Download PDF

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Publication number
CN109665419A
CN109665419A CN201711299460.9A CN201711299460A CN109665419A CN 109665419 A CN109665419 A CN 109665419A CN 201711299460 A CN201711299460 A CN 201711299460A CN 109665419 A CN109665419 A CN 109665419A
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CN
China
Prior art keywords
worm
carriage
traction sheave
driving
manual
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.)
Pending
Application number
CN201711299460.9A
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Chinese (zh)
Inventor
陈庆
邓健
李军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Xiaoxi Electromechanical Technology Co Ltd
Original Assignee
Shaanxi Xiaoxi Electromechanical Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Xiaoxi Electromechanical Technology Co Ltd filed Critical Shaanxi Xiaoxi Electromechanical Technology Co Ltd
Publication of CN109665419A publication Critical patent/CN109665419A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0005—Constructional features of hoistways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
    • B66B13/125—Arrangements for effecting simultaneous opening or closing of cage and landing doors electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • 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
    • B66B5/26—Positively-acting devices, e.g. latches, knives
    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises
    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers
    • 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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093—Testing of safety devices
    • 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
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • 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
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • 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
    • B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • 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
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The present invention relates to a kind of drag devices with manual rescue device, it solves existing elevator and emergency braking is carried out by band-type brake, it is easy because the enclasping force of band-type brake is insufficient, cause carriage can not fast braking, the defect that braking reliability is low, elevator safety is not high, it include: traction machine, traction sheave, worm gear mechanism, synchronization mechanism and manual rescue device.Synchronization mechanism connect with worm screw and worm screw is driven to keep with worm gear synchronous rotation elevator being operated normally, worm and wheel engagement constitutes the lockable mechanism of traction sheave, the reliable braking of traction sheave can be realized when elevator device has a power failure or breaks down, carriage is effectively prevented to rush to summit or the safety accident at crouching bottom, and passenger self-rescue in carriage is realized by manual rescue device, mitigate the fear of passenger, and is rescued at the first time.

Description

A kind of drag device with manual rescue device
Technical field
The present invention relates to a kind of drag device, especially a kind of drag device with manual rescue device.
Background technique
In skyscraper, in order to adapt to the demand of height change, lifting device is a kind of corollary equipment of indispensability, such as electricity Ladder can bring great convenience to user.
Elevator is a kind of using motor as the vertical conveyor of power, also known as vertical lift.Vertical lift is hung equipped with box-like Cabin multiplies people or carrying cargo for tier building.It is automatically controlled from the modernization of earliest first step safety escalator till now Elevator, although the driving of elevator is most or uses traction-type driving mechanism, including one sets by the development of centuries The traction machine in well headroom is set, traction machine connects traction sheave, and hoist ropes is full of on traction sheave, and one end of hoist ropes connects sedan-chair Compartment, the other end of hoist ropes connect the counterweight for balancing car weight.When traction machine driving traction sheave rotation, it is wound around and drags Rub the tractive force of generation between hoist ropes and traction sheave on running wheel, realizes the elevating movement of carriage and counterweight.
In use, the accident of most serious is exactly rapid aerating-holding or the crouching bottom of carriage to elevator, and less serious case leads to passenger's body Body and elevator it is impaired, it is serious to result even in passenger's death.For this purpose, people devise and various lift running safety can be improved Property device and method, wherein most important mode be exactly on traction machine be arranged an Electromagnetic Control arrestment mechanism.Work as electricity Ladder have a power failure or because elevator failure cause control system can not to elevator supply, electromagnet power loss in arrestment mechanism and lose Magnetic power is removed, arrestment mechanism continues to act by the active force of tripping spring at this time, and locking braking can be realized to traction machine； When elevator has electricity, the electromagnet in arrestment mechanism obtain it is electric, to be arrestment mechanism contact to the locking of traction machine, elevator can be normal Operation.
For example, disclosed one kind " elevator traction machine " in Chinese patent literature, notification number CN2401528Y, including Pedestal, motor, worm gear case, worm screw, worm gear shaft, hanging feet, worm gear, traction sheave, arrestment mechanism, one end of the worm gear shaft are equipped with inclined Heart set is equipped with tie-plate in the middle part of worm gear shaft, and tie-plate one end and worm gear are mutually solid, the other end and traction sheave mutually admittedly, in tie-plate and Bearing is respectively set between worm gear and between tie-plate and traction sheave, is equipped with adjustment in a pair of of hanging feet bottom of setting worm gear shaft Gasket.When work, first power on, so that arrestment mechanism is in energized state by control switch, while motor passes through worm screw band Dynamic worm gear operating, and then traction sheave rotation is driven by tie-plate, the rope of winding on the traction sheave can drive lift car Lifting.When carriage runs to scheduled a certain destination, stall motor by actuating control switch, while by brake Structure is dynamic.Braking principle is as follows: when motor power-off, the solenoid valve power loss of arrestment mechanism, the work that a pair of of band-type brake passes through spring force With locking braked wheel, stall motor shaft rapidly by embracing the frictional force between the cap watt and braked wheel explained, to make elevator car Compartment is stabilized ground stop layers.
But the arrestment mechanism of this structure, band-type brake is needed to apply enclasping force, if the enclasping force of band-type brake is insufficient, sedan-chair Compartment can not fast braking be easy to cause in carriage passenger panic there is also lifting moving.And after band-type brake holds braking tightly, scene It cannot achieve and save oneself, need to be carried out external rescue by special rescue personnel by the mechanism of a series of complex, rescue waits Time it is long, than relatively hazardous, the passenger in carriage cannot be rescued the process of rescue at the first time, may be delayed and be rescued The opportunity helped.
Summary of the invention
The present invention solves existing elevator and carries out emergency braking by band-type brake, is easy to make because the enclasping force of band-type brake is insufficient At carriage can not fast braking, the defect that braking reliability is low, elevator safety is not high, providing a kind of has manual rescue device Drag device, when elevator device breaks down can fast braking, and directly carried out by way of a kind of traction sheave locking Locking braking, braking reliability is high, and carriage can effectively be avoided to rush to summit or the safety accident at crouching bottom.
This invention also solves existing elevators to save oneself, and needs external professional rescue team to be rescued, carriage It is interior waiting for a long time, it is also easy to lose the defect of the first rescue time, a kind of drag device with manual rescue device is provided, It with manual rescue device, can be saved oneself in carriage by passenger, win for the first rescue time, improve elevator safety.
The specific technical proposal of the invention is: a kind of drag device with manual rescue device, comprising:
Traction machine, the power source as carriage lifting；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes, traction wire saws carriage liter are arranged on traction sheave Drop；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and rotates synchronously in company with traction sheave, and worm and wheel engagement is constituted The lockable mechanism of traction sheave；
Synchronization mechanism, be connected with worm screw for drive worm screw rotation keep it is synchronous with worm gear, elevator normal operation when, worm screw and Worm gear mutually separates always；
Manual rescue device, hoist ropes end is wound on it, and the hoist ropes releasably wound when needing to rescue makes carriage Leveling.
A worm gear mechanism is arranged in the present invention, and worm gear and traction sheave are coaxially connected.It is known that worm and gear With self-locking, that is to say, that worm gear is unable to drive worm screw rotation, and worm gear rotation can only be driven by worm screw.For this purpose, of the invention One purely mechanic synchronization mechanism is set to realize that worm and wheel is synchronous, worm and wheel keeps synchronizing, and worm screw would not be right Worm gear causes self-locking, that is to say, that worm gear at this time is to drive by traction machine, and worm screw is then to rely on as traction sheave Synchronization mechanism driving, worm gear and worm screw are in mutually independent state, hinder so that worm screw be made not formed to the rotation of worm gear Hinder.As long as synchronization mechanism is able to achieve worm and wheel synchronous rotation, therefore can be the structure of electric-mechanic control system, it is also possible to Purely mechanic structure.When system blackout, worm screw stops operating, and reliable mechanical self-latching can be formed to worm gear, thus to draging Running wheel forms reliable braking；When traction machine is out of control leads to velocity anomaly, worm gear can not form synchronous, worm screw at this time with worm screw The rotation of worm gear can be hindered automatically, to can avoid carriage rapid aerating-holding or crouching bottom.It is known that in the prior art, worm gear Worm screw is a kind of transmission mechanism with self-locking effect, and in order to improve safety, people can be arranged some detectable on elevator The sensor of carriage lifting speed, to cut off the power when fast lifting occurs in carriage and to brake traction machine.And it is of the invention On the one hand worm and gear has self-locking, while may make up a reliable mechanical sensing device, on the one hand ensures stopping Electricity or traction machine occur reliably braking traction sheave when abnormal conditions, on the other hand can timely perceive the improper of traction machine Operating, and then can dramatically safety when ground hoisting elevator operation.Worm and gear of the invention elevator operate normally when be not It is the mechanism of a transmission power, and the facewidth of worm screw can be smaller than the space width of worm gear, therefore the tooth socket of worm tooth and worm gear Between can have a gap, to make to keep discrete state between worm tooth and worm-gear toothing, can avoid between worm and wheel Contact friction is generated, while reducing isochronous controller to the control accuracy requirement of traction machine, synchronous motor revolving speed, is avoided because of traction The slight deviations of revolving speed cause the frequent shutdown of elevator between machine, synchronous motor.Certainly this is a kind of optimal working condition, snail Worm and wheel is not in contact, and would not also generate abrasion and noise etc., and this gap is also beneficial to improve the fault-tolerant of elevator Ability, as long as keeping worm and wheel synchronous in fact.The present invention includes a manual rescue device, and manual rescue device is pre- It is first wound with the hoist ropes of one end sufficient length, when elevator faults are operating abnormally, elevator cutting power supply, worm gear mechanism is certainly Lock, traction sheave stops operating, if there is passenger in carriage, needs to be rescued at the first time, avoids passenger in carriage panic, At this time can be by the hoist ropes of release winding, so that lift car leveling, this leveling can be also possible in carriage with cage descending It rises, is mainly determined according further to the relationship between carriage overall weight and balance counterweight weight.When elevator works normally It waits, manual rescue device will enwind hoist ropes, hoist ropes cannot be made to unclamp, and be also equivalent to hoist ropes at this time and carriage is solid Fixed.Manual rescue device can be operated in carriage by passenger, in this way, the passenger in carriage can carry out certainly at the first time It rescues.
Preferably, synchronization mechanism uses servo motor, or using the purely mechanic kind of drive by worm screw and traction machine or Person's traction sheave is connected.This is the type of two big synchronization mechanisms, and servo motor belongs to automatically controlled equipment, and current precision is relatively high, But belong to automatically controlled, need other devices of otherwise designed for matching the rotation of servo motor and the rotation of traction machine；It is purely mechanic Kind of drive structure is simple, and the requirement to precision is relatively high, but cost is relatively low, and relatively reliable.
Preferably, manual rescue device includes locking system and the drive of the roller and locking roller for winding hoist ropes The manual driving device of hoist ropes is loosened in dynamic roller rotation.Roller can rotate, and roller is for winding hoist ropes, in locking system Locking under, roller is fixed from rotation, and the distance between hoist ropes and carriage will not change at this time, traction sheave work when Carriage can be normally drawn by hoist ropes；When traction sheave locking needs to rescue, manual driving device drives roller rotation, rolling Cylinder discharges hoist ropes in rotation, so that the long hair of the hoist ropes between traction sheave and carriage changes, does not turn in traction sheave In the case where dynamic, carriage can go up and down realization leveling.
Preferably, locking system uses Worm and worm-wheel gearing, roller is connected with worm gear, and worm and wheel engages simultaneously The static formation locking of worm screw is kept, manual driving device driving worm screw rotation, which is realized, to be unlocked and roller is driven to rotate.Worm and gear Transmission mechanism has natural self-locking function, and worm gear is connected with roller, and in the case where worm screw stops, worm gear is locked up, simultaneously Roller is also locked up, and when manual driving device driving worm screw rotation, worm gear is just able to rotate and roller is driven to rotate at this time, Jin Ershi Now unlock and carriage lifting.
The project plan comparison of manual driving device is more, can be various structures, preferably, manual driving device includes driving Bar, the driving pulley being connected with drive rod, the synchronous belt of connecting worm and driving pulley, drive rod are extend into carriage.In sedan-chair Rotation of drive rod in compartment, the driving pulley on drive rod pass through synchronous belt and drive worm screw rotation, worm drive turbine rotation, worm gear Roller can be driven to rotate.
Preferably, manual driving device includes driving rope, the driving wheel being connected with worm screw, driving is restricted matches with driving wheel It closes, driving rope is extend into carriage.The drawing driving rope in carriage, driving rope band move driving wheel rotation, and driving wheel drives worm screw Rotation, worm drive turbine rotation, worm gear can drive roller to rotate.
Preferably, hoist ropes is two groups, roller is two and corresponds in hoist ropes that each roller is all connected with one A Worm and worm-wheel gearing is connected between the worm screw of two Worm and worm-wheel gearings by synchronous belt or passes through interlocking bar phase Even.Two groups of hoist ropes draw carriage jointly, so that the stress of carriage is more reasonable, when drawing carriage, carriage lifting is compared Steadily, two groups of hoist ropes match two rollers, and each roller is respectively connected with a Worm and worm-wheel gearing again, when rescue, for reality Existing carriage is steadily gone up and down, and the worm screw of best two groups of Worm and worm-wheel gearings can rotate synchronously, therefore by same between two worm screws Step band is connected, as long as driving synchronous belt rotation, can drive two worm screws to rotate simultaneously, or wherein a worm screw rotates for driving, leads to Crossing synchronous belt can drive another worm screw to rotate synchronously；Or be connected by interlocking bar, two worm screws synchronous rotation also may be implemented.
Preferably, traction machine, traction sheave, worm gear mechanism, synchronization mechanism are all set on mounting platform, rescue manually Shaking apparatus is set on fixed frame, and fixed frame is fixed on car roof.
Preferably, being provided with leveling limiting device in carriage.When rescue, carriage is typically all to decline, in order to determine sedan-chair The height of compartment decline, there are two types of mode, one is the length by the hoist ropes discharged to determine, but sedan-chair when due to elevator faults The position that compartment stops is different, therefore more difficult to control by the length passenger of hoist ropes, for transparent carriage, passes through The release length of hoist ropes determines that cage descending height is also feasible, is exactly for second by leveling limiting device, passenger After discharging hoist ropes, lift car leveling is limited by leveling limiting device, does not just have to passenger at this time and removes control hoist ropes Length is discharged, and leveling limiting device can be used as the protective device of car deliverance decline again.
The beneficial effects of the present invention are: the reliable braking of traction sheave can be realized when elevator device has a power failure or breaks down, It is effectively prevented from carriage to rush to summit or the safety accident at crouching bottom, then passenger self-rescue is realized by manual rescue device, mitigate passenger's Fear, and rescued at the first time.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the present invention；
Fig. 2 is a kind of two-shipper tracting structure schematic diagram of the present invention；
Fig. 3 is a kind of top view of manual rescue device of the present invention；
Fig. 4 is the axonometric drawing of structure shown in Fig. 3 of the present invention；
Fig. 5 is the top view of second of manual rescue device of the invention；
In figure: 1, left counterweight, 2, left hoist ropes, 3, mounting platform, 4, left steering pulley, 5, traction sheave, 6, right turn pulley, 7, Right hoist ropes, 8, right counterweight, 9, Worm and worm-wheel gearing, 10, right roller, 11, carriage, 12, leveling limiting device, 13, stand Platform, 14, roll left cylinder, 15, directive wheel, 16, synchronous belt, 17, traction machine, 18, shaft coupling, 19, servo motor, 20, worm and gear Mechanism, 21, encoder, 22, fixed frame, 23, Chang Liang, 24, short beam, 25, mounting rack, 26, driving pulley, 27, drive rod, 28, Driving wheel, 29, interlocking bar.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the invention will be further described.
A kind of embodiment 1: drag device with manual rescue device (referring to Fig. 1 Fig. 2 Fig. 3 Fig. 4), comprising: including draging Draw machine 17, traction sheave 5, worm gear mechanism 20, synchronization mechanism and manual rescue device.
Traction machine is arranged on the mounting platform 3 at the top of elevator shaft, and the traction machine in the present embodiment uses servo motor, The power resources that servo motor can be gone up and down with precision control revolving speed, traction machine as carriage.One end output of traction machine passes through Shaft coupling 18 and traction sheave are coaxially connected.The other side of traction sheave is connect by shaft coupling with worm gear mechanism.On traction sheave It is arranged with hoist ropes, around being connected after angle pulley with carriage, the other end of hoist ropes is slided around steering for one end of hoist ropes It is connected after wheel with counterweight, traction sheave and hoist ropes collectively form the action actuating mechanism that traction carriage is gone up and down.When traction machine is defeated When torque is out to drive traction sheave to rotate, the hoist ropes one end decline of winding on the traction sheave, the other end rises, to draw sedan-chair The lifting in compartment.When the carriage that connect with hoist ropes one end rises, what is connect with the hoist ropes other end declines to re-synchronizing；Instead It, when the cage descending being connect with hoist ropes one end, connect with the hoist ropes other end to re-synchronize rise.The present embodiment In, hoist ropes is two groups, and respectively left hoist ropes 2 and right hoist ropes 7, left hoist ropes are furnished with two left steering pulleys 4, right hoist ropes Equipped with two right turn pulleys 6, left hoist ropes connects left counterweight 1, and right hoist ropes connects right counterweight 8.
Worm gear mechanism includes intermeshing worm gear and worm screw, and worm gear is coaxially connected with traction sheave and in company with traction sheave It rotates synchronously, worm and wheel engagement constitutes the lockable mechanism of traction sheave.When elevator works normally, worm tooth and worm-gear toothing phase point From there are symmetrical gap between worm tooth and worm-gear toothing, the gap is designed as 2mm in the present embodiment, and the gap of 2mm makes snail Bar can have a discontiguous rotational angle with respect to worm gear, so that there is enough fault-tolerant surpluses between worm and wheel, in order to Guarantee that worm screw will not form locking to worm gear, just need to drive worm screw at this time, so that turn of the revolving speed of worm screw and worm gear Speed matches, and worm gear is rotated synchronously in company with traction sheave at this time, and worm screw rotates synchronously, and worm tooth remains and worm-gear toothing phase point From.Worm gear mechanism is connected with encoder 21, and encoder is mainly the rotation for monitoring worm gear, also carries out to the rotation of worm gear anti- Feedback, that is, the working order of traction sheave can be monitored by encoder.
Synchronization mechanism is to make worm and wheel keep rotating synchronously.That is, when traction sheave and worm gear stop turning When dynamic, worm screw is remain stationary, and worm screw at this time can form worm gear reliably self-locking；When traction machine driving traction sheave rotation, with When just going up and down carriage, worm gear follows traction sheave to rotate, and synchronization mechanism rotates worm screw at this time, and keeps worm and wheel It is synchronous.In this way, worm screw worm gear will not be formed it is self-locking, traction sheave can normal rotation, and worm gear and worm screw are respectively by traction sheave It is driven with synchronization mechanism, there is no the transmission of torque between worm gear and worm screw, synchronization mechanism at this time is substantially at light condition. When elevator power failure or system occur abnormal, synchronization mechanism and traction sheave are cut off the power simultaneously, and worm screw at this time can be to snail Wheel forms reliable self-locking.Synchronization mechanism can use servo motor, or use the purely mechanic kind of drive by worm screw and traction Machine or traction sheave are connected.Servo motor 19 is used in the present embodiment, servo motor accurately controls the revolving speed of worm screw.Root first According to the revolving speed of the operating condition control traction machine of lift car, then according to the gearratio control servo motor of worm and wheel Revolving speed, so that it is guaranteed that worm and wheel is synchronous and worm and worm wheel is made to keep independent rotation, servo motor at this time is only driven Worm screw rotation, is equivalent to light condition.If there is exception in the revolving speed control of the traction machine of elevator, so as to cause carriage lifting speed Degree generates exception or the revolving speed control appearance of servo motor is abnormal, and worm gear and the revolving speed of worm screw can not match at this time, thus It is formed and is interfered with each other between worm and gear, elevator control system is switched off the power supply of entire elevator at this time, and worm screw at this time stops Rotation may make up to the reliable self-locking of worm gear, to realize the reliable braking of traction sheave, avoids occurring carriage and rushes to summit or crouching bottom Safety accident.
In order to which when elevator breaks down, the timely of passenger is saved oneself, we are provided with corresponding manual rescue device, are draging When drawing mechanism generation locking, carriage is drawn using hoist ropes by manual rescue device and realizes the quick leveling of carriage.Hand Dynamic deliverance apparatus includes that traction is loosened in the locking system of the roller and locking roller for winding hoist ropes and driving roller rotation The manual driving device of rope.In the present embodiment, hoist ropes is two groups, therefore roller is also two groups, is roll left cylinder 14 and the right side respectively Roller 10, each roller are respectively connected with a Worm and worm-wheel gearing 9.The worm gear of Worm and worm-wheel gearing and corresponding roller Coaxial fixed, worm screw is vertically arranged to be engaged with worm gear.Manual driving device driving worm screw rotation, which is realized, to be unlocked and roller is driven to turn Dynamic, cage descending is steady in order to control, and two rollers need to rotate synchronously while discharge isometric hoist ropes, it is therefore desirable to while two snails Bar rotates synchronously, it is necessary to which two worm screws are linked.In the present embodiment, linkage is formed by synchronous belt 16 between two worm screws, it is synchronous Band cooperates with directive wheel 15, changes the trend of synchronous belt, so that having more Contact Tooth between synchronous belt and worm screw.This implementation Manual driving device in example includes drive rod 27, the driving pulley 26 being connected with drive rod, driving pulley and 16 phase of synchronous belt Cooperation, drive rod is extend into carriage can be by the passenger operation in carriage, rotation of drive rod, drive rod drive main belt rotation Dynamic, driving pulley drives synchronous belt rotation, and synchronous belt drives two worm screws to rotate simultaneously, final that two rollers is driven to rotate synchronously and release Put hoist ropes.Coiling length of the hoist ropes on roller is determined according to distance needed for carriage layer drop, in order to the greatest extent when rescue It is shifted fastly from carriage, as soon as therefore cage descending when is all the maximum release length to nearest layer, that is, hoist ropes It is one layer of height.
In order to guarantee that lift car leveling is smooth, the present embodiment is provided with leveling limiting device 12, leveling limit in cage bottom Device is Telescopic rod structure, and when needing to rescue, leveling limiting device just stretches out, when cage descending, stretching it is flat Layer limiting device is in contact with the limited block of 13 side of platform, and carriage stopping will not decline after contact, also illustrates that lift car leveling In place.
Manual rescue device is set on fixed frame 22, and fixed frame is fixed on the top of sedan-chair 11.Fixed frame is in frame-shaped construction, frame shape The position at angle be fixed with parallel long beam 23 and short beam 24, be fixed with mounting rack 25, roller, worm and gear on long beam and short beam Transmission mechanism is both secured on mounting rack.
Embodiment 2: a kind of drag device with manual rescue device, difference from example 1 is that: two worm screws Between linkage (referring to Fig. 5) realized using interlocking bar 29, the worm gear of two Worm and worm-wheel gearings is in same plane, two worm screws It is coaxially arranged, it is connected between two worm screws by interlocking bar.Manual driving device includes the driving wheel that driving restricts and is connected with worm screw 28, driving rope cooperates with driving wheel, and driving rope is extend into carriage.When needing to rescue, by the passenger operation in carriage, Drawing driving rope, driving rope band move driving wheel rotation, and driving wheel drives two worm screws to rotate synchronously, final to drive two rollers are synchronous to turn It moves and discharges hoist ropes.Remaining structure is referring to embodiment 1.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within the technology of the present invention side The protection scope of case.

Claims (9)

1. a kind of drag device with manual rescue device, characterized by comprising:
Traction machine, the power source as carriage lifting；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes, traction wire saws carriage liter are arranged on traction sheave Drop；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and rotates synchronously in company with traction sheave, and worm and wheel engagement is constituted The lockable mechanism of traction sheave；
Synchronization mechanism, be connected with worm screw for drive worm screw rotation keep it is synchronous with worm gear, elevator normal operation when, worm screw and Worm gear mutually separates always；
Manual rescue device, hoist ropes end is wound on it, and the hoist ropes releasably wound when needing to rescue makes carriage Leveling.
2. a kind of drag device with manual rescue device according to claim 1, it is characterised in that synchronization mechanism is adopted With servo motor, either worm screw is connected with traction machine or traction sheave using the purely mechanic kind of drive.
3. a kind of drag device with manual rescue device according to claim 1 or 2, it is characterised in that manual rescue Device includes that the locking system of the roller and locking roller for winding hoist ropes and driving roller rotate the hand for loosening hoist ropes Dynamic driving device.
4. a kind of drag device with manual rescue device according to claim 3, it is characterised in that locking system is adopted With Worm and worm-wheel gearing, roller is connected with worm gear, and worm and wheel engages and keep the static formation locking of worm screw, drives manually Dynamic device driving worm screw rotation, which is realized, to be unlocked and roller is driven to rotate.
5. a kind of drag device with manual rescue device according to claim 4, it is characterised in that manual actuation dress It sets including drive rod, the driving pulley being connected with drive rod, the synchronous belt of connecting worm and driving pulley, drive rod extend into sedan-chair In compartment.
6. a kind of drag device with manual rescue device according to claim 4, it is characterised in that manual actuation dress It sets and restricts including driving, the driving wheel being connected with worm screw, driving rope cooperates with driving wheel, and driving rope is extend into carriage.
7. a kind of drag device with manual rescue device according to claim 1 or 2, it is characterised in that hoist ropes is Two groups, roller is two and corresponds in hoist ropes that each roller is all connected with a Worm and worm-wheel gearing, two worm gears It is connected between the worm screw of worm gearing by synchronous belt or is connected by interlocking bar.
8. a kind of drag device with manual rescue device according to claim 1 or 2, it is characterised in that traction machine, Traction sheave, worm gear mechanism, synchronization mechanism are all set on mounting platform, and manual rescue device is set on fixed frame, Gu Determine frame and is fixed on car roof.
9. a kind of drag device with manual rescue device according to claim 1 or 2, it is characterised in that set in carriage It is equipped with leveling limiting device.
CN201711299460.9A 2017-10-17 2017-12-08 A kind of drag device with manual rescue device Pending CN109665419A (en)

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CN2017109651374 2017-10-17
CN201710965137 2017-10-17

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CN201711298667.4A Pending CN109665418A (en) 2017-10-17 2017-12-08 A kind of elevator traction mechanism
CN201711299460.9A Pending CN109665419A (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
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CN201711297826.9A Active CN109665406B (en) 2017-10-17 2017-12-08 Double-machine traction device
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CN201711424564.8A Pending CN109665402A (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
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Application Number Title Priority Date Filing Date
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
CN201711298668.9A Pending CN109665401A (en) 2017-10-17 2017-12-08 A kind of elevator emergent rescue mechanism
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