CN207792401U - A kind of two-shipper drag device - Google Patents

A kind of two-shipper drag device Download PDF

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Publication number
CN207792401U
CN207792401U CN201721701152.XU CN201721701152U CN207792401U CN 207792401 U CN207792401 U CN 207792401U CN 201721701152 U CN201721701152 U CN 201721701152U CN 207792401 U CN207792401 U CN 207792401U
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CN
China
Prior art keywords
worm
traction sheave
worm screw
lazy
tongs
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Expired - Fee Related
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CN201721701152.XU
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Chinese (zh)
Inventor
陈庆
邓健
李军
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Shaanxi Xiaoxi Electromechanical Technology Co Ltd
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Shaanxi Xiaoxi Electromechanical Technology Co Ltd
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    • 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
    • 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
    • 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
    • B66B5/0006—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
    • 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
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
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    • B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
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    • B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
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    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
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    • 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
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    • 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
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    • 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
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    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
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    • 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
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    • 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
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    • 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
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    • 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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    • B66—HOISTING; LIFTING; HAULING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B66B7/06—Arrangements of ropes or cables
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Abstract

The utility model is related to a kind of two-shipper drag device, solve existing elevator and emergency braking carried out by band-type brake, be easy because the enclasping force of band-type brake is insufficient, cause car can not fast braking, the defect that braking reliability is low, elevator safety is not high, including：Traction machine, traction sheave, worm gear mechanism, rescue motor and lazy-tongs.Worm gear is coaxially connected with traction sheave and is rotated synchronously in company with traction sheave, and using mechanically operated mode, lazy-tongs connect with worm screw and worm screw is driven to keep rotating synchronously with worm gear, are connect with worm screw, and worm screw rotation is only driven when need to rescue.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, it is effectively prevented from car to rush to summit or the safety accident at crouching bottom, and drives worm screw and then traction sheave rotation is driven to realize in time by rescuing motor and rescue.

Description

A kind of two-shipper drag device
Technical field
The utility model is related to a kind of drag device, especially a kind of two-shipper with main traction motor and rescue motor drags Leading-in device.
Background technology
In skyscraper, in order to adapt to the demand of height change, lifting gear 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 by the development of centuries, the driving of elevator is most or uses traction-type driving mechanism, including one sets 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, draged around being located at Rub the tractive force of generation between hoist ropes and traction sheave on running wheel, realizes the elevating movement of car and counterweight.
In use, the accident of most serious is exactly rapid aerating-holding or the crouching bottom of car 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 dead electricity in arrestment mechanism and lose Magnetic power is removed, arrestment mechanism continues to act by the active force of tripping spring at this time, you can locking braking is realized to traction machine； When elevator has electricity, the electromagnet in arrestment mechanism obtains electric, and 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 One end of pedestal, motor, worm gear case, worm screw, worm gear shaft, hanging feet, worm gear, traction sheave, arrestment mechanism, the worm gear shaft is equipped with partially Heart set is equipped with tie-plate in the middle part of worm gear shaft, and tie-plate one end is mutually solid with worm gear, 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, adjustment is equipped 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 controlling switch, while motor passes through worm screw band Dynamic worm gear operating, and then drive traction sheave rotation, the rope of winding on the traction sheave that can drive lift car by tie-plate Lifting.When car runs to scheduled a certain destination, motor is set to stall by actuating control switch, while by brake Structure is dynamic.Braking principle is as follows：When motor power-off, the solenoid valve dead electricity of arrestment mechanism, the work that a pair of of band-type brake passes through spring force With locking braked wheel, motor shaft is set to stall 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 it is panic to be easy to cause in car passenger there is also lifting moving.And after band-type brake holds braking tightly, scene It cannot achieve and save oneself, need to carry out external rescue by special rescue personnel by the mechanism of a series of complex, rescue waits for Time it is long, than relatively hazardous, the passenger in car cannot be rescued the process of rescue at the first time, may be delayed and be rescued The opportunity helped.
Invention content
The utility model solve existing elevator by band-type brake carry out emergency braking, be easy because band-type brake enclasping force not Foot, cause car can not fast braking, the defect that braking reliability is low, elevator safety is not high provides a kind of two-shipper traction dress It sets, the energy fast braking when elevator device breaks down, and directly carries out locking braking by way of a kind of traction sheave locking, Braking reliability is high, and car can effectively be avoided to rush to summit or the safety accident at crouching bottom.
The utility model also solves existing elevator and can not save oneself, and external professional rescue team is needed to be rescued, It is waiting for a long time in car, it is also easy to lose the defect of the first rescue time, a kind of two-shipper drag device is provided, with rescue electricity Machine can be saved oneself in car by passenger, win for the first rescue time, improve elevator safety.
The specific technical solution of the utility model is：A kind of two-shipper drag device, including：
Traction machine, the power source as car lifting；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes is arranged on traction sheave, and hoist ropes connects car And draw car lifting；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and is rotated synchronously in company with traction sheave, worm and wheel engagement Constitute the lockable mechanism of traction sheave；
Motor is rescued, is connect with worm screw, worm screw rotation is only driven when need to rescue, and then drives worm gear rotation and band Dynamic traction sheave rotation carries out car deliverance movement；
Lazy-tongs, using mechanically operated mode, lazy-tongs connect with worm screw and worm screw are driven to keep same with worm gear Step rotation, when elevator runs well, worm and wheel is separated always.
A worm gear mechanism is arranged in the utility model, and worm gear and traction sheave are coaxially connected.It is known that worm gear Worm screw has self-locking, that is to say, that worm gear can not drive worm screw to rotate, and worm gear rotation can only be driven by worm screw.For this purpose, this A purely mechanic lazy-tongs are arranged to realize that worm and wheel synchronizes in utility model, and worm and wheel keeps synchronizing, worm screw Self-locking would not be caused to worm gear, that is to say, that worm gear at this time is driven by traction machine as traction sheave, and worm screw It is then to rely on synchronous machine drives, worm gear and worm screw are in mutually independent state, to make worm screw not turn to worm gear Dynamic formed hinders.The power source of lazy-tongs can come from traction machine, can also be that can also be from snail from traction sheave Wheel, certainly, the power source from worm gear are transferred to worm screw and need that a clutch is arranged, which is needing worm screw self-locking When can disconnect transmission, the difference of power source just needs to design the appropriate transmission ratios of lazy-tongs, to ensure worm gear snail Bar synchronizes.When system blackout, worm screw stops operating, you can reliable mechanical self-latching is formed to worm gear, to traction wheel shape At reliable braking；When traction machine is out of control leads to velocity anomaly, worm gear can not form synchronous with worm screw, and worm screw can be automatic at this time The rotation for hindering worm gear, to can avoid car rapid aerating-holding or crouching bottom.It is known that in the prior art, worm and gear is A kind of transmission mechanism with self-locking effect, in order to improve safety, some detectable car liters can be arranged in people on elevator The sensor of reduction of speed degree, to cut off the power when fast lifting occurs in car and to brake traction machine.And the snail of the utility model On the one hand worm and gear has self-locking, while may make up a reliable mechanical sensing device, on the one hand ensures having a power failure Or traction machine occurs reliably braking traction sheave when abnormal conditions, on the other hand can timely perceive the improper fortune of traction machine Turn, so can significantly hoisting elevator run when safety.The worm gear of the utility model is rotated synchronously in company with traction sheave, and snail Bar connection rescue motor, herein worm screw load be far smaller than traction sheave load, it may be said that worm screw be equivalent to it is non-loaded, only The motor shaft rotation of rescue motor is driven, therefore the safety of lazy-tongs can be reliable, compares traction machine and traction sheave group At carrying means safety coefficient higher, therefore lazy-tongs will not cause reaction to carrying means substantially.The utility model Worm and gear be not in elevator normal operation a transmission power mechanism, and the facewidth of worm screw can be than the tooth of worm gear Groove width is small, therefore can have between worm tooth and the tooth socket of worm gear there are one gap, to make to be kept between worm tooth and worm-gear toothing Discrete state can avoid generating contact friction between worm and wheel, while reduce isochronous controller to traction machine, synchronous motor The control accuracy requirement of rotating speed avoids the frequent shutdown of the elevator caused by the slight deviations of rotating speed between traction machine, synchronous motor. Certainly this is a kind of best working condition, and worm and wheel is not in contact, and would not also generate abrasion and noise etc., and this Kind gap is also beneficial to improve the fault-tolerant ability of elevator, as long as keeping worm and wheel to synchronize in fact.The utility model packet A rescue motor is included, rescue motor is connected with worm screw, when needing rescue, starts rescue motor, can pass through at this time It rescues motor and drives worm screw, then drive worm gear to rotate by worm screw, and then traction sheave rotation is driven by worm gear, realize car liter Drop, these can be realized at the first time by setting, can be Background control, can also be control in car, to obtain the One rescue time.Lazy-tongs use mechanically operated mode, reliability high, and failure rate is relatively low, eliminate automatically controlled, reduce into This, also avoids the destabilizing factor of electric control belt.The two-shipper of the application refers to just traction machine and rescue motor.
Preferably, lazy-tongs connection traction machine and worm screw, input source of the traction machine as lazy-tongs, worm screw is same Walk the output tail of mechanism.Input source of the traction machine as lazy-tongs herein, worm gear are to rely on traction machine to drive again, traction Machine drives traction sheave that can pass through primary deceleration, and worm gear has the transmission ratio of setting with worm screw again, therefore lazy-tongs just need basis Traction machine and the transmission ratio of worm screw carry out the transmission ratio of final design lazy-tongs.
Preferably, lazy-tongs connection traction sheave and worm screw, input source of the traction sheave as lazy-tongs, worm screw is same Walk the output tail of mechanism.Traction sheave herein is as input source, that is to say, that in the rotation axis of traction sheave be arranged gear or The output mechanisms such as synchronous belt, at this time the transmission ratio of lazy-tongs to be designed according to the transmission ratio between traction sheave and worm screw.
Preferably, lazy-tongs include clutch, when being powered, clutch keeps transmission, when no electricity, Clutch disconnects transmission.Lazy-tongs include clutch, and the inertia rotation generated after traction machine braking in this way is not transferred to Worm screw influences final braking to avoid worm screw from being rotated further driving worm gear rotation.Increase clutch, clutch can be When traction sheave is braked, lazy-tongs are directly disconnected so that worm screw plays the role of self-locking to worm gear, it is contemplated that the fortune of elevator Market condition, when elevator is faulty, by elevator with being electrically cut off, therefore clutch is considered as electromagnetic clutch, elevator When having electric normal operation, electromagnetic clutch normal work, lazy-tongs normal work, works as Lift out of order at this time, this When for security consideration, cut off elevator supply, electromagnetic clutch disconnects lazy-tongs at this time, and worm screw does not have external impetus input pair Worm gear realizes self-locking.
Preferably, lazy-tongs include a drive link, drive link is parallel with the pivot center of traction sheave, drive link and snail Between bar by can 90 ° change transmission directions transmission mechanisms connect.The pivot center phase of the pivot center of worm screw and traction sheave Vertically, thus lazy-tongs include a drive link and one can 90 ° of steerings transmission mechanisms, after being turned to by 90 ° of transmission mechanism, pass Lever rotation direction identical with traction sheave passes to worm screw.
Preferably, transmission mechanism uses bevel gear pair or worm and gear.
Preferably, the power input of drive link derives from traction machine, traction machine uses transmitted in both directions structure, one end output It is connect with traction sheave, other end output is connect by gear pair with drive link.Or other end output passes through synchronous belt and transmission Bar connects.
Preferably, rescue motor is connected with stand-by power supply, the stand-by power supply uses accumulator or generating electricity from manpower Machine.In elevator normal operation, rescue motor is in no-load condition, that is to say, that rescue motor at this time is not powered, and is rescued It is free state to help motor, and worm screw rotates synchronously under the driving of lazy-tongs with worm gear, at this point, rescue motor drives in worm screw Under make and follow action, worm screw will not be operated and be impacted.When elevator failure, such as traction machine operation exception, at this time Elevator supply can be cut off, or clear-cut is exactly elevator power failure, just need to carry out rescue motor by stand-by power supply at this time short Power supply in time, to make rescue motor worm screw can be driven to rotate, worm screw drives worm gear rotation, worm gear to drive traction sheave rotation, Flat bed realization rescue is carried out to be lifted by traction wire saws car, accumulator may be used in stand-by power supply, and accumulator compares It is convenient, it is also beneficial to simplify structure or stand-by power supply uses man-power generator, carry out power generation by manpower supplies to rescue motor Electricity.
Preferably, the generating electricity from manpower mechanism of man-power generator is set to the hiding position in car.Man-power generator Position is in the hiding position of car, does not influence cab interior space, passenger will not be interfered to stand, and man-power generator is hidden Afterwards, passenger's maloperation in car will not occur, certainly, safety device can also be increased herein so that rescue motor only can be Start when rescue, elevator normal operation will not be influenced there is maloperation.
The utility model has the beneficial effects that：The reliable system of traction sheave can be realized when elevator device has a power failure or breaks down It is dynamic, it is effectively prevented from car and rushes to summit or the safety accident at crouching bottom.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first embodiment of the utility model；
Fig. 2 is the structural schematic diagram of second of embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the third embodiment of the utility model；
In figure：1, traction machine, 2, shaft coupling, 3, traction sheave, 4, rescue motor, 5, worm gear mechanism, 6, encoder, 7, Driven wheel of differential, 8, drive bevel gear, 9, drive link, 10, driven gear, 11, driving gear, 12, worm gear, 13, worm screw, 14, Driven pulley, 15, synchronous belt, 16, driving pulley, 17, electromagnetic clutch.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, the utility model will be further described.
Embodiment 1：A kind of elevator two-shipper drag device（Referring to Fig. 1）, including traction machine 1, traction sheave 3, worm and gear machine Structure 5, rescue motor 4 and lazy-tongs.
Traction machine is arranged on the mounting platform 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 lifted with precision control rotating speed, traction machine as car.Traction machine uses transmitted in both directions knot Structure, one end output is coaxially connected by shaft coupling 2 and traction sheave, and the other end connects lazy-tongs.The other side of traction sheave passes through Shaft coupling is connect with worm gear mechanism.Be arranged with hoist ropes on traction sheave, one end of hoist ropes around after angle pulley with sedan-chair Compartment is connected, and for the other end of hoist ropes around being connected with counterweight after angle pulley, traction sheave collectively forms traction with hoist ropes The action actuating mechanism of car lifting.When traction machine output torque is to drive traction sheave to rotate, winding draging on the traction sheave Messenger one end declines, and the other end rises, to draw the lifting of car.When the car being connect with hoist ropes one end rises, with The connection of the hoist ropes other end declines to re-synchronizing；Conversely, when the cage descending being connect with hoist ropes one end, it is another with hoist ropes One end connection rises to re-synchronizing.
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 there are one discontiguous rotational angles with respect to worm gear so that there is enough fault-tolerant surpluses between worm and wheel, in order to Ensure that worm screw will not form locking to worm gear, just need to drive worm screw at this time so that the rotating speed of worm screw and turning for 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 6, and encoder is mainly the rotation for monitoring worm gear, is also carried out to the rotation of worm gear anti- Feedback, that is, the working order of traction sheave can be monitored by encoder.
To realize that worm screw synchronizes, the utility model uses mechanically operated lazy-tongs, in the present embodiment, lazy-tongs Power resources are in traction machine.Lazy-tongs include a drive link 9, drive link is parallel with the pivot center of traction sheave, drive link with Between worm screw by can 90 ° change transmission directions transmission mechanisms connect.It can 90 ° of transmissions for changing transmission direction in the present embodiment Mechanism uses bevel gear pair, including intermeshing drive bevel gear 8 and driven wheel of differential 7, drive bevel gear and drive link phase Connection, driven wheel of differential are connected with worm screw.The other end of traction sheave passes through gear between exporting end corresponding with drive link Pair connection, gear pair includes driving gear 11 and driven gear 10, the output axis connection of driving gear and traction sheave, driven gear It is connect with transmission boom end, driving gear engagement parallel with driven gear axis.The transmission arm of gear pair and bevel gear pair wants root It being designed according to the rotating ratio between traction sheave and worm screw, traction machine drives traction sheave rotation, traction sheave synchronous drive worm gear to rotate, Worm gear has fixed rotating ratio with worm screw, this is, carrying out transmission by lazy-tongs needs identical rotating ratio.When elevator goes out Existing failure, the power supply of elevator stopping at this time, lazy-tongs stop transmission, and worm screw carries out self-locking to worm gear, and traction sheave is locked up simultaneously, To ensure that car stops.
In order to which when elevator breaks down, the timely of passenger is saved oneself, the utility model devises rescue motor 4, rescues motor It is connect with worm screw, rescue motor is connected with stand-by power supply.It rescues motor and only drives worm screw rotation when need to rescue, and then drive Dynamic worm gear rotates and traction sheave rotation is driven to carry out car deliverance movement.It rescues motor and worm screw is coaxially connected, the normal work of elevator When making, rescue motor is not powered, and rescuing motor at this time will not drive worm screw to rotate, and worm screw is rotated by lazy-tongs, Rescue motor follows worm screw to be freely rotated.Car stops in the case of worm and gear self-locking after elevator faults, when needing to rescue When, stand-by power supply gives rescue motor power supply, rescue motor driving worm screw rotation, worm screw that worm gear rotation, worm gear is driven to drive traction Wheel rotation, traction sheave lift flat bed nearby by traction wire saws car, achieve the purpose that rescue at the first time.This standby electricity Source can charge in elevator normal course of operation.
Embodiment 2：A kind of elevator two-shipper drag device（Referring to Fig. 2）, including traction machine 1, traction sheave 3, worm and gear machine Structure 5, rescue motor 4 and lazy-tongs.
Lazy-tongs include a drive link 9, and drive link is parallel with the pivot center of traction sheave, are led between drive link and worm screw Crossing can 90 ° of transmission mechanism connection for changing transmission directions.It, can 90 ° of transmission mechanisms uses for changing transmission directions in the present embodiment Worm and gear, worm gear 12 are connect with the worm screw in worm gear mechanism, worm screw 13 with transmission boom end be connected, drive link it is another One end is connected by synchronous belt 15 with traction machine output end.The end of drive link is fixed with driven pulley 14, traction machine output end It is fixed with driving pulley 16, synchronous belt 15 is connected between driving pulley and driven pulley.Traction machine output is transmitted by synchronous belt To drive link, drive link drives the worm screw of worm gear mechanism by worm and gear again and keeps the worm gear with worm gear mechanism It rotates synchronously.
Lazy-tongs, using mechanically operated mode, lazy-tongs connect with worm screw and worm screw are driven to keep same with worm gear Step rotation, when elevator runs well, worm and wheel is separated always.
Description of the other structures of the present embodiment with reference to embodiment 1.
Embodiment 3：A kind of elevator two-shipper drag device（Referring to Fig. 3）Difference from Example 1 is to set on drive link 9 It is equipped with clutch, the clutch in the present embodiment uses electromagnetic clutch 17, and when being powered, clutch keeps transmission, together It walks mechanism driving worm screw to rotate synchronously, locking will not be caused to worm gear；When no electricity, clutch disconnects transmission.It is same at this time Step mechanism there is no power input, worm screw will not be driven to rotate, worm screw will locking worm gear, finally to traction sheave carry out locking. Remaining structure is with reference to embodiment 1.
The above is only the preferred embodiment of the utility model, not imposed any restrictions to the utility model, every According to the utility model technical spirit to any simple modification, change and equivalent transformation made by above example, still fall within The protection domain of technical solutions of the utility model.

Claims (10)

1. a kind of two-shipper drag device, it is characterised in that including：
Traction machine, the power source as car lifting；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes is arranged on traction sheave, and hoist ropes connection car is simultaneously led Draw car lifting；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and is rotated synchronously in company with traction sheave, and worm and wheel engagement is constituted The lockable mechanism of traction sheave；
Motor is rescued, is connect with worm screw, worm screw rotation is only driven when need to rescue, and then drives worm gear to rotate and drive and drags Running wheel rotation carries out car deliverance movement；
Lazy-tongs, using mechanically operated mode, lazy-tongs, which connect with worm screw and worm screw is driven to keep synchronous with worm gear, to be turned Dynamic, when elevator runs well, worm and wheel is separated always.
2. a kind of two-shipper drag device according to claim 1, it is characterised in that lazy-tongs connect traction machine and worm screw, Input source of the traction machine as lazy-tongs, worm screw are the output tail of lazy-tongs.
3. a kind of two-shipper drag device according to claim 1, it is characterised in that lazy-tongs connect traction sheave and worm screw, Input source of the traction sheave as lazy-tongs, worm screw are the output tail of lazy-tongs.
4. a kind of two-shipper drag device according to claim 1 or 2 or 3, it is characterised in that lazy-tongs include clutch, When being powered, clutch keeps transmission, and when no electricity, clutch disconnects transmission.
5. a kind of two-shipper drag device according to claim 1 or 2 or 3, it is characterised in that lazy-tongs include a transmission Bar, drive link is parallel with the pivot center of traction sheave, between drive link and worm screw by can 90 ° change transmission direction drivers Structure connects.
6. a kind of two-shipper drag device according to claim 5, it is characterised in that transmission mechanism uses bevel gear pair, or Worm and gear.
7. a kind of two-shipper drag device according to claim 5, it is characterised in that traction machine use transmitted in both directions structure, one End output is connect with traction sheave, and other end output is connect by gear pair with drive link.
8. a kind of two-shipper drag device according to claim 5, it is characterised in that traction machine use transmitted in both directions structure, one End output is connect with traction sheave, and other end output is connect by synchronous belt with drive link.
9. a kind of two-shipper drag device according to claim 1 or 2 or 3, it is characterised in that rescue motor is connected with spare Power supply, the stand-by power supply use accumulator or man-power generator.
10. a kind of two-shipper drag device according to claim 9, it is characterised in that the generating electricity from manpower mechanism of man-power generator It is set to the hiding position in car.
CN201721701152.XU 2017-10-17 2017-12-08 A kind of two-shipper drag device Expired - Fee Related CN207792401U (en)

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Application Number Priority Date Filing Date Title
CN2017109651374 2017-10-17
CN201710965137 2017-10-17

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Family Applications (39)

Application Number Title Priority Date Filing Date
CN201721701152.XU Expired - Fee Related CN207792401U (en) 2017-10-17 2017-12-08 A kind of two-shipper drag device
CN201711299460.9A Pending CN109665419A (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
CN201711297826.9A Pending CN109665406A (en) 2017-10-17 2017-12-08 A kind of two-shipper drag device
CN201711298667.4A Pending CN109665418A (en) 2017-10-17 2017-12-08 A kind of elevator traction mechanism
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
CN201711423217.3A Pending CN109665420A (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721845421.XU Expired - Fee Related CN208037781U (en) 2017-10-17 2017-12-25 The opposed drag device of elevator
CN201711424492.7A Pending CN109665395A (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system
CN201721838851.9U Expired - Fee Related CN207827610U (en) 2017-10-17 2017-12-25 The anti-error telephone-moving structure of elevator lifting
CN201721838714.5U Expired - Fee Related CN208037802U (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721834750.4U Expired - Fee Related CN208544972U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection system
CN201711425674.6A Pending CN109665422A (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detection system and manual rescue device
CN201711425731.0A Pending CN109665416A (en) 2017-10-17 2017-12-25 A kind of counterweight arragement construction in elevator traction system
CN201711424491.2A Pending CN109665421A (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection system
CN201721834840.3U Expired - Fee Related CN208103630U (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711424501.2A Pending CN109665428A (en) 2017-10-17 2017-12-25 A kind of elevator door-motor system based on safety return circuit detection
CN201721838853.8U Expired - Fee Related CN207827644U (en) 2017-10-17 2017-12-25 A kind of opposed tracting structure of elevator
CN201711425729.3A Pending CN109665396A (en) 2017-10-17 2017-12-25 The anti-error telephone-moving structure of elevator lifting
CN201711425678.4A Pending CN109665403A (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711423198.4A Pending CN109665412A (en) 2017-10-17 2017-12-25 A kind of opposed drag device of elevator
CN201711425682.0A Pending CN109665429A (en) 2017-10-17 2017-12-25 A kind of gate layer door system based on safety return circuit detection
CN201721837178.7U Expired - Fee Related CN208054690U (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detecting system and manual rescue device
CN201711425687.3A Pending CN109665407A (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201721839786.1U Expired - Fee Related CN207827627U (en) 2017-10-17 2017-12-25 A kind of counterweight arrangement in elevator traction system
CN201721836246.8U Expired - Fee Related CN208249599U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection
CN201711425712.8A Pending CN109665426A (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201721839184.6U Expired - Fee Related CN208037803U (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201721839486.3U Expired - Fee Related CN208037765U (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201721834896.9U Expired - Fee Related CN208103657U (en) 2017-10-17 2017-12-25 A kind of four door lift car
CN201721839185.0U Expired - Fee Related CN207827649U (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201711424490.8A Pending CN109665394A (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection
CN201711425732.5A Pending CN109665423A (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201711424564.8A Pending CN109665402A (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201721837182.3U Expired - Fee Related CN208037768U (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201711425699.6A Pending CN109665417A (en) 2017-10-17 2017-12-25 A kind of four door lift car
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CN201810668905.4A Pending CN109665424A (en) 2017-10-17 2018-06-26 A kind of anti-error shifting self locking elevator of leveling

Family Applications After (38)

Application Number Title Priority Date Filing Date
CN201711299460.9A Pending CN109665419A (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
CN201711297826.9A Pending CN109665406A (en) 2017-10-17 2017-12-08 A kind of two-shipper drag device
CN201711298667.4A Pending CN109665418A (en) 2017-10-17 2017-12-08 A kind of elevator traction mechanism
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
CN201711423217.3A Pending CN109665420A (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721845421.XU Expired - Fee Related CN208037781U (en) 2017-10-17 2017-12-25 The opposed drag device of elevator
CN201711424492.7A Pending CN109665395A (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system
CN201721838851.9U Expired - Fee Related CN207827610U (en) 2017-10-17 2017-12-25 The anti-error telephone-moving structure of elevator lifting
CN201721838714.5U Expired - Fee Related CN208037802U (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721834750.4U Expired - Fee Related CN208544972U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection system
CN201711425674.6A Pending CN109665422A (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detection system and manual rescue device
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CN201711424501.2A Pending CN109665428A (en) 2017-10-17 2017-12-25 A kind of elevator door-motor system based on safety return circuit detection
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CN201711425678.4A Pending CN109665403A (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711423198.4A Pending CN109665412A (en) 2017-10-17 2017-12-25 A kind of opposed drag device of elevator
CN201711425682.0A Pending CN109665429A (en) 2017-10-17 2017-12-25 A kind of gate layer door system based on safety return circuit detection
CN201721837178.7U Expired - Fee Related CN208054690U (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detecting system and manual rescue device
CN201711425687.3A Pending CN109665407A (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201721839786.1U Expired - Fee Related CN207827627U (en) 2017-10-17 2017-12-25 A kind of counterweight arrangement in elevator traction system
CN201721836246.8U Expired - Fee Related CN208249599U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection
CN201711425712.8A Pending CN109665426A (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201721839184.6U Expired - Fee Related CN208037803U (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201721839486.3U Expired - Fee Related CN208037765U (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201721834896.9U Expired - Fee Related CN208103657U (en) 2017-10-17 2017-12-25 A kind of four door lift car
CN201721839185.0U Expired - Fee Related CN207827649U (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201711424490.8A Pending CN109665394A (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection
CN201711425732.5A Pending CN109665423A (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201711424564.8A Pending CN109665402A (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201721837182.3U Expired - Fee Related CN208037768U (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201711425699.6A Pending CN109665417A (en) 2017-10-17 2017-12-25 A kind of four door lift car
CN201721834837.1U Expired - Fee Related CN208631856U (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system
CN201820989189.5U Expired - Fee Related CN208544986U (en) 2017-10-17 2018-06-26 A kind of anti-error shifting self locking elevator of leveling
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