CN208037768U - A kind of two-shipper towed elevator based on safety return circuit detection - Google Patents
A kind of two-shipper towed elevator based on safety return circuit detection Download PDFInfo
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- CN208037768U CN208037768U CN201721837182.3U CN201721837182U CN208037768U CN 208037768 U CN208037768 U CN 208037768U CN 201721837182 U CN201721837182 U CN 201721837182U CN 208037768 U CN208037768 U CN 208037768U
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- safety
- switch
- return circuit
- connect
- shipper
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—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
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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
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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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
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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
- B66B11/04—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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
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- 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
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- 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
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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
- B66B11/0035—Arrangement of driving gear, e.g. location or support
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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
- B66B11/026—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
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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
- B66B11/04—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
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B66B5/0037—Performance analysers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—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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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
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- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
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- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
Abstract
The utility model discloses a kind of two-shipper towed elevators based on safety return circuit detection, including two-shipper drag device and safety return circuit detecting system, safety return circuit, including master switch, several limit switches and safety switch, power supply are connect by safety return circuit with main safety contactor coil；Several control modules, each control module are communicated to connect respectively with respectively matched switch detection module by safety bus, are communicated to connect by safety bus between all control modules.The utility model can realize the reliable braking of traction sheave when elevator device has a power failure or breaks down, and be effectively prevented from car and rush to summit or the safety accident at crouching bottom；Failed element can quickly be positioned by being also maintenance staff, replaced quasi- failed element in time and provided basis for estimation.
Description
Technical field
The utility model is related to a kind of emergency staircases, refer in particular to a kind of two-shipper with main traction motor and rescue motor
Drag device and the two-shipper towed elevator detected based on safety return circuit.
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.
Utility model 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 purpose of this utility model is achieved by following technical proposals：
A kind of two-shipper towed elevator based on safety return circuit detection, which is characterized in that including two-shipper drag device and safety
Circuit detecting system,
Two-shipper drag device includes：
Traction machine, as the power source of car lifting, the traction machine is connect by main safety contactor contact with power supply；
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；
Safety return circuit detecting system includes：
Safety return circuit, including master switch, several limit switches and safety switch, power supply pass through safety return circuit and main safety
Contactor coil connects；
Several switch detection modules, each switch detection module is corresponding, and there are one master switch, limit switch or safety
Switch, the output end for switching detection module are communicated to connect by safety bus and matched control module, switch detection module
First test side is connect with the movable contact of master switch, limit switch or safety switch, switch the second test side of detection module with
The stationary contact of master switch, limit switch or safety switch connects；Several go back between switch detection module with safety switch
It is communicated to connect by safety bus；
Safety bus connects all switch detection modules and control module；
Several control modules, each control module are logical with respective matched switch detection module respectively by safety bus
Letter connection, each control module are connected by safety bus and safety switch communication connection.
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.
In the utility model, safety return circuit is similar with the safety return circuit of conventional elevator, is all to have several safety devices, limit
The contacts of contactor of position device switchs and is that the master switch of button switch or other limit switches are constituted, root in the utility model
Be referred to as master switch, several limit switches and safety switch according to the difference of function, this equipment in elevator device compared with
It is common, for example, the upper limit position switch of elevator, lower position switch are known as limit switch in the present invention, in door machine
Limiting device have motor driving, in the limit switch the utility model configured in transmission process be also referred to as limit switch, peace
Full switch then represents contactless contactor of safety device in the utility model, such as traction motor detection switch etc., this practicality is new
It is not limited in type, all limit switches and safety switch are separately mounted to be configured with the Ministry of State Security of the elevator of two-shipper drag device
On part, it should be understood that all limit switch and safety switch, master switch are the prior art；Switch detection mould
Block itself is due to included controller, so having address when being connect with safety bus, the utility model is opened
It is more to close the element that detection module can be selected, does not limit specific element in the utility model, it is only necessary to which it is capable of providing inspection
Survey and address function, any intelligent chip may be used in those skilled in the art, detection chip reaches corresponding function i.e.
The purpose of this utility model can be achieved, conventional elevator system establishing criteria is equipped with safety return circuit, i.e., normally closed is opened by several
Close series connection, the power supply of control system active force element.When touching dangerous action triggers, corresponding switch is just cut by closed state
Off state is shifted to, safety return circuit disconnects, and contactor unclamps in circuit, and system active force element loses power supply, and system is stopped
Only.Ensure personnel safety.But in actual use, over time, each switch touches during long-term through-flow
Point resistance gradually increases, and safety return circuit, which respectively switchs partial pressure, gradually to be increased, and the voltage on the contactor of control dynamical element is acted on
It is gradually reduced.When pressure drop reaches certain value, contactor will unclamp, and elevator mistakenly stop is caused to stop, and cause failure.Maintenance staff arrive
It is larger to need to find out failed element difficulty after up to scene in numerous switches, using switch detection module in the utility model,
Its own address signal is mainly utilized, is directly opened according to the corresponding limit of address signal detection when open circuit occurs in safety return circuit
Pass and safety switch, master switch can quickly position failed element for maintenance staff, replace quasi- failed element in time and provide and sentence
Disconnected foundation.Control module itself can provide the data such as the position of failed element, can also remember the component being easily damaged
Record is used for the maintenance in later stage, even anticipation, early warning, can be completed by control module.Meanwhile all control modules are equal
The control signal to safety switch can be received, since control signal includes the control information switched to some particular safety, if
It is not the control information for matching inherently safe switch that a certain control module, which receives this control information, then this control module is to right
The control module of this control information is answered to send out communication request, if the control module of this corresponding control information has received control information
And execute the corresponding operation of completion, then the communication information that corresponding safety switch operation is completed in other control modules is fed back, if
Control information is not received, then after the communication request for receiving other control modules, executes to complete to operate accordingly and feed back other again
The communication information of corresponding safety switch operation is completed in control module.This design ensures that some control module sends communication
Failure cannot complete corresponding operating in time, other control modules may insure will to control information be sent to have occurred and that communication therefore
The control module of barrier, the working condition that each control module can detect other control modules again can be by other control moulds
Block is detected, and security performance greatly promotes.
As a preferred embodiment, lazy-tongs connection traction machine and worm screw, input source of the traction machine as lazy-tongs,
Worm screw is the output tail of lazy-tongs.Input source of the traction machine as lazy-tongs, worm gear are to rely on traction machine again herein
Driving, traction machine drive traction sheave that can pass through primary deceleration, and worm gear has the transmission ratio of setting with worm screw again, therefore lazy-tongs are just
It needs according to traction machine and the transmission ratio of worm screw come the transmission ratio of final design lazy-tongs.
As a preferred embodiment, lazy-tongs connection traction sheave and worm screw, input source of the traction sheave as lazy-tongs,
Worm screw is the output tail of lazy-tongs.Traction sheave herein is as input source, that is to say, that is arranged in the rotation axis of traction sheave
The output mechanisms such as gear or synchronous belt, the transmission ratio of lazy-tongs is next according to the transmission ratio between traction sheave and worm screw at this time
Design.
As a preferred embodiment, lazy-tongs include clutch, and when being powered, clutch keeps transmission, in nothing
When electric, clutch disconnects transmission.Lazy-tongs include clutch, and the inertia rotation generated after traction machine braking in this way is not
Worm screw can be passed to, to avoid worm screw from being rotated further driving turbine rotation, influences final braking.Clutch is increased, from
Clutch can directly disconnect lazy-tongs so that worm screw plays the role of self-locking to worm gear when traction sheave is braked, it is contemplated that
The operating condition of elevator, when elevator is faulty, by elevator with being electrically cut off, therefore clutch is considered as electromagnetic clutch
Device, when elevator has electric normal operation, electromagnetic clutch works normally, and lazy-tongs work normally at this time, when elevator occurs
Failure cuts off elevator supply at this time for security consideration, and electromagnetic clutch disconnects lazy-tongs at this time, and worm screw is without external dynamic
Power input realizes self-locking to worm gear.
As a preferred embodiment, lazy-tongs include a drive link, and drive link is parallel with the pivot center of traction sheave, are passed
Between lever and worm screw by can 90 ° change transmission directions transmission mechanisms connect.The pivot center of worm screw and turning for traction sheave
Shaft line is perpendicular, thus lazy-tongs include a drive link and one can 90 ° of steerings transmission mechanisms, by 90 ° of transmission mechanism
After steering, drive link rotation direction identical with traction sheave passes to worm screw.
As a preferred embodiment, transmission mechanism uses bevel gear pair or worm and gear.
As a preferred embodiment, traction machine uses transmitted in both directions structure, one end output to be connect with traction sheave, and the other end is defeated
Go out and is connect with drive link by gear pair.
As a preferred embodiment, traction machine uses transmitted in both directions structure, one end output to be connect with traction sheave, and the other end is defeated
Go out and is connect with drive link by synchronous belt.
As a preferred embodiment, switch detection module includes checking judgment module, timesharing cycle energization module and control
Device, the output end for checking judgment module are communicated to connect by safety bus and control module, the inspection judgment module the
One test side is the high frequency output end being connect with the movable contact of master switch, limit switch or safety switch, checks judgment module
Second test side is the pile-up pulse test side being connect with the stationary contact of master switch, limit switch or safety switch, checks and judges
The high-frequency signal input terminal of module is electrically connected with timesharing cycle energization module, and timesharing recycles the control terminal and controller of energization module
Electrical connection.
Each switch detection module information in bus is gradually asked in the utility model in a cycle.Each switch detection
Switching information in collected respectively corresponding safety return circuit is sent to upper-level control system by module.At interval of for a period of time just
Operation is primary.During system power transmission, circular flow detects program.When detection program is not limited to elevator operation, elevator device waits for
It also needs to run when machine.
Each switch detection module is independently-powered, has the function of bus in own coding.The switch that will can respectively measure
Closed state and the analog signals of reflection contact resistance pass through bus feedback to host computer.Externally there is input terminal in module test side
Mouth and output port.High-frequency impulse can occur for output port, and the pulse signal sent out is filled by individual safety chain switches
Feed back inbound port.Input port has the function of step-by-step counting and analog measurement.Therefore, it in the utility model, is examined to first
It surveys end and is named as high frequency output end, the second test side is named as pile-up pulse test side, as long as in fact, random devices can reach
To one end high frequency output, second end pile-up pulse detection, you can realize the technical solution of the application, therefore, the utility model pair
Element model itself does not limit.
There are two types of the working conditions of the utility model,
Switch disconnects：Because pulse test circuit can not constitute circuit, the high-frequency impulse that signal detection end output port is sent out
Input port can not detect, judge that on off state disconnects.Without accumulation, it is 0 to measure analog quantity for pulse.Pass through signal transmission passage
It is disconnected to host computer feedback switch signal, the analog quantity of accumulation is 0.
Switch is closed：The high-frequency impulse that signal detection end output port is sent out detects the pulse of same frequency in input port
Signal judges that on off state is closed.The analog quantity of pulse accumulation can reflect switch contact resistance sizes.It is steady in supply voltage
Fixed, in the case of same detection cycle, the analog quantity is smaller, illustrates that switch contact resistance is bigger, and pulse energy loss is more.It should
Analog quantity is bigger, illustrates that contact resistance is smaller, and pulse energy is lost smaller.
As a preferred embodiment, power supply is connected by the input terminal of low-pass filter and safety return circuit, safety return circuit
Output end is connect by a low-pass filter with main safety contactor coil, each pile-up pulse detection for checking judgment module
End is connected by a high-pass filter with the stationary contact of corresponding master switch, limit switch or safety switch.This practicality is new
In type, in actual use, over time, each switch leads to for a long time for master switch, limit switch or safety switch
During stream, contact resistance gradually increases, therefore cannot be equal to ideal circuit, checks that the pulse of judgment module output end exists
Short-circuit direction, i.e. pile-up pulse test side are selected after reaching stationary contact, pile-up pulse quantity is calculated by pile-up pulse test side,
Achieve the effect that calculate current resistance.
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；Failed element can quickly be positioned by being also maintenance staff, in time more
It changes quasi- failed element and provides basis for estimation.Each control module of the utility model can detect the work of other control modules
Making situation can be detected again by other control modules, and security performance greatly promotes.
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；
Fig. 4 is the circuit diagram of the utility model safety return circuit system.
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
The utility model is further described with reference to the accompanying drawings and examples.
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.
Traction machine described in all embodiments described above is connect by main safety contactor contact with power supply；Safety return circuit is examined
Examining system includes：Safety return circuit, including master switch, several limit switches and safety switch, power supply pass through safety return circuit and master
Safety contactor coil connects；
Several switch detection modules, each switch detection module is corresponding, and there are one master switch, limit switch or safety
Switch, the output end for switching detection module are communicated to connect by safety bus and matched control module, switch detection module
First test side is connect with the movable contact of master switch, limit switch or safety switch, switch the second test side of detection module with
The stationary contact of master switch, limit switch or safety switch connects；Several go back between switch detection module with safety switch
It is communicated to connect by safety bus；Safety bus connects all switch detection modules and control module；Several control modules,
Each control module is communicated to connect with respectively matched switch detection module respectively by safety bus, between all control modules
It is communicated to connect by safety bus.It includes checking judgment module, timesharing cycle energization module and controller, institute to switch detection module
It states and checks that the output end of judgment module is communicated to connect by safety bus and control module, the inspection judgment module first detects
End is the high frequency output end being connect with the movable contact of master switch, limit switch or safety switch, checks the second inspection of judgment module
It is the pile-up pulse test side being connect with the stationary contact of master switch, limit switch or safety switch to survey end, checks judgment module
High-frequency signal input terminal is electrically connected with timesharing cycle energization module, and the control terminal of timesharing cycle energization module is electrically connected with controller
It connects.The power supply is connected by the input terminal of low-pass filter and safety return circuit, and the output end of safety return circuit passes through a low pass
Filter is connect with main safety contactor coil, and each pile-up pulse test side for checking judgment module is filtered by a high pass
Wave device is connected with the stationary contact of corresponding master switch, limit switch or safety switch.
In the utility model, safety return circuit is similar with the safety return circuit of conventional elevator, is all to have several safety devices, limit
The contacts of contactor of position device switchs and is that the master switch of button switch or other limit switches are constituted, root in the utility model
Be referred to as master switch, several limit switches and safety switch according to the difference of function, this equipment in elevator device compared with
It is common, for example, the upper limit position switch of elevator, lower position switch are known as limit switch in the present invention, in door machine
Limiting device have motor driving, in the limit switch the utility model configured in transmission process be also referred to as limit switch, peace
Full switch then represents contactless contactor of safety device in the utility model, such as traction motor detection switch etc., this practicality is new
It is not limited in type, all limit switches and safety switch are separately mounted to be configured with the Ministry of State Security of the elevator of two-shipper drag device
On part, it should be understood that all limit switch and safety switch, master switch are the prior art；Switch detection mould
Block itself is due to included controller, so having address when being connect with safety bus, the utility model is opened
It is more to close the element that detection module can be selected, does not limit specific element in the utility model, it is only necessary to which it is capable of providing inspection
Survey and address function, any intelligent chip may be used in those skilled in the art, detection chip reaches corresponding function i.e.
The purpose of this utility model can be achieved, conventional elevator system establishing criteria is equipped with safety return circuit, i.e., normally closed is opened by several
Close series connection, the power supply of control system active force element.When touching dangerous action triggers, corresponding switch is just cut by closed state
Off state is shifted to, safety return circuit disconnects, and contactor unclamps in circuit, and system active force element loses power supply, and system is stopped
Only.Ensure personnel safety.But in actual use, over time, each switch touches during long-term through-flow
Point resistance gradually increases, and safety return circuit, which respectively switchs partial pressure, gradually to be increased, and the voltage on the contactor of control dynamical element is acted on
It is gradually reduced.When pressure drop reaches certain value, contactor will unclamp, and elevator mistakenly stop is caused to stop, and cause failure.Maintenance staff arrive
It is larger to need to find out failed element difficulty after up to scene in numerous switches, using switch detection module in the utility model,
Its own address signal is mainly utilized, is directly opened according to the corresponding limit of address signal detection when open circuit occurs in safety return circuit
Pass and safety switch, master switch can quickly position failed element for maintenance staff, replace quasi- failed element in time and provide and sentence
Disconnected foundation.Control module itself can provide the data such as the position of failed element, can also remember the component being easily damaged
Record is used for the maintenance in later stage, even anticipation, early warning, can be completed by control module.Meanwhile all control modules are equal
The control signal to safety switch can be received, since control signal includes the control information switched to some particular safety, if
It is not the control information for matching inherently safe switch that a certain control module, which receives this control information, then this control module is to right
The control module of this control information is answered to send out communication request, if the control module of this corresponding control information has received control information
And execute the corresponding operation of completion, then the communication information that corresponding safety switch operation is completed in other control modules is fed back, if
Control information is not received, then after the communication request for receiving other control modules, executes to complete to operate accordingly and feed back other again
The communication information of corresponding safety switch operation is completed in control module.This design ensures that some control module sends communication
Failure cannot complete corresponding operating in time, other control modules may insure will to control information be sent to have occurred and that communication therefore
The control module of barrier, the working condition that each control module can detect other control modules again can be by other control moulds
Block is detected, and security performance greatly promotes.
Each switch detection module information on safety bus is gradually asked in safety circuit detecting system a cycle.
Switching information in collected respectively corresponding safety return circuit is sent to control module by each switch detection module.At interval of one section
Time just runs once.During system power transmission, circular flow detects program.When detection program is not limited to elevator operation, elevator
It also needs to run when system standby.
Each switch detection module is independently-powered, has the function of bus in own coding.The switch that will can respectively measure
Closed state and the analog signals of reflection contact resistance pass through bus feedback to host computer.Externally there is input terminal in module test side
Mouth and output port.High-frequency impulse can occur for output port, and the pulse signal sent out is filled by individual safety chain switches
Feed back inbound port.Input port has the function of step-by-step counting and analog measurement.Therefore, it in the utility model, is examined to first
It surveys end and is named as high frequency output end, the second test side is named as pile-up pulse test side, as long as in fact, random devices can reach
To one end high frequency output, second end pile-up pulse detection, you can realize the technical solution of the application, therefore, the utility model pair
Element model itself does not limit.
There are two types of the working conditions of the present embodiment,
Switch disconnects：Because pulse test circuit can not constitute circuit, the high-frequency impulse that signal detection end output port is sent out
Input port can not detect, judge that on off state disconnects.Without accumulation, it is 0 to measure analog quantity for pulse.Pass through signal transmission passage
It is disconnected to host computer feedback switch signal, the analog quantity of accumulation is 0.
Switch is closed：The high-frequency impulse that signal detection end output port is sent out detects the pulse of same frequency in input port
Signal judges that on off state is closed.The analog quantity of pulse accumulation can reflect switch contact resistance sizes.It is steady in supply voltage
Fixed, in the case of same detection cycle, the analog quantity is smaller, illustrates that switch contact resistance is bigger, and pulse energy loss is more.It should
Analog quantity is bigger, illustrates that contact resistance is smaller, and pulse energy is lost smaller.
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 towed elevator based on safety return circuit detection, which is characterized in that include pair detected based on safety return circuit
Machine towed elevator and safety return circuit detecting system,
Based on safety return circuit detection two-shipper towed elevator include：
Traction machine, as the power source of car lifting, the traction machine is connect by main safety contactor contact with power supply；
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；
Safety return circuit detecting system includes：
Safety return circuit, including master switch, several limit switches and safety switch, power supply pass through safety return circuit and main safe contact
Device coil connects；
Several switch detection modules, each detection module that switchs are corresponded to there are one master switch, limit switch or safety switch,
The output end for switching detection module is communicated to connect by safety bus and matched control module, switchs the first inspection of detection module
Survey end connect with the movable contact of master switch, limit switch or safety switch, switch detection module the second test side and master switch,
The stationary contact of limit switch or safety switch connects；Several also pass through safety between switch detection module with safety switch
Bus communication connects；
Safety bus connects all switch detection modules and control module；
Several control modules, each control module by safety bus respectively with respective matched switch detection module communication link
It connects, is communicated to connect by safety bus between all control modules.
2. the two-shipper towed elevator according to claim 1 based on safety return circuit detection, which is characterized in that lazy-tongs connect
Traction machine and worm screw, input source of the traction machine as lazy-tongs are connect, worm screw is the output tail of lazy-tongs.
3. the two-shipper towed elevator according to claim 1 based on safety return circuit detection, which is characterized in that lazy-tongs connect
Traction sheave and worm screw, input source of the traction sheave as lazy-tongs are connect, worm screw is the output tail of lazy-tongs.
4. the two-shipper towed elevator according to claim 1 or 2 or 3 based on safety return circuit detection, which is characterized in that synchronous
Mechanism includes clutch, and when being powered, clutch keeps transmission, and when no electricity, clutch disconnects transmission.
5. the two-shipper towed elevator according to claim 1 or 2 or 3 based on safety return circuit detection, which is characterized in that synchronous
Mechanism include a drive link, drive link is parallel with the pivot center of traction sheave, between drive link and worm screw by can 90 ° change pass
The transmission mechanism connection in dynamic direction.
6. the two-shipper towed elevator according to claim 5 based on safety return circuit detection, which is characterized in that transmission mechanism is adopted
With bevel gear pair or worm and gear.
7. the two-shipper towed elevator according to claim 5 based on safety return circuit detection, which is characterized in that traction machine uses
Transmitted in both directions structure, one end output are connect with traction sheave, and other end output is connect by gear pair with drive link.
8. the two-shipper towed elevator according to claim 5 based on safety return circuit detection, which is characterized in that traction machine uses
Transmitted in both directions structure, one end output are connect with traction sheave, and other end output is connect by synchronous belt with drive link.
9. a kind of two-shipper towed elevator based on safety return circuit detection according to claim 1 or 2 or 3, which is characterized in that
It includes checking judgment module, timesharing cycle energization module and controller, the output for checking judgment module to switch detection module
End is communicated to connect by safety bus and control module, and the first test side of the inspection judgment module is to be opened with master switch, limit
Close or safety switch movable contact connection high frequency output end, check judgment module the second test side be and master switch, limit
The pile-up pulse test side of the stationary contact of switch or safety switch connection, checks high-frequency signal input terminal and the timesharing of judgment module
The electrical connection of energization module is recycled, the control terminal of timesharing cycle energization module is electrically connected with the controller.
10. a kind of two-shipper towed elevator based on safety return circuit detection according to claim 1 or 2 or 3, feature exist
In the power supply is connected by the input terminal of low-pass filter and safety return circuit, and the output end of safety return circuit passes through a low pass
Filter is connect with main safety contactor coil, and each pile-up pulse test side for checking judgment module is filtered by a high pass
Wave device is connected with the stationary contact of corresponding master switch, limit switch or safety switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965137 | 2017-10-17 | ||
| CN2017109651374 | 2017-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208037768U true CN208037768U (en) | 2018-11-02 |
Family
ID=63283437
Family Applications (39)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711298667.4A Pending CN109665418A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator traction mechanism |
| 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 |
| CN201721701151.5U Expired - Fee Related CN207792432U (en) | 2017-10-17 | 2017-12-08 | A kind of drag device with manual rescue device |
| 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 |
| 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 |
| CN201721839185.0U Expired - Fee Related CN207827649U (en) | 2017-10-17 | 2017-12-25 | The opposed carrying means of elevator counterweight |
| CN201711424492.7A Pending CN109665395A (en) | 2017-10-17 | 2017-12-25 | Two-shipper towed elevator configured with safety return circuit detection system |
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| CN201721838714.5U Expired - Fee Related CN208037802U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with safety tongs |
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| 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 |
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| CN201721834750.4U Expired - Fee Related CN208544972U (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection system |
| CN201711425712.8A Pending CN109665426A (en) | 2017-10-17 | 2017-12-25 | The opposed carrying means of elevator counterweight |
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| CN201711298667.4A Pending CN109665418A (en) | 2017-10-17 | 2017-12-08 | A kind of elevator traction mechanism |
| 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 |
| CN201721701151.5U Expired - Fee Related CN207792432U (en) | 2017-10-17 | 2017-12-08 | A kind of drag device with manual rescue device |
| 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 |
| CN201721834840.3U Expired - Fee Related CN208103630U (en) | 2017-10-17 | 2017-12-25 | A kind of concealed two-shipper drag device of counterweight |
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| CN201721838714.5U Expired - Fee Related CN208037802U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with safety tongs |
| CN201721838853.8U Expired - Fee Related CN207827644U (en) | 2017-10-17 | 2017-12-25 | A kind of opposed tracting structure of elevator |
| CN201721845421.XU Expired - Fee Related CN208037781U (en) | 2017-10-17 | 2017-12-25 | The opposed drag device of elevator |
| CN201721839486.3U Expired - Fee Related CN208037765U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with manual rescue mechanism |
| CN201721839184.6U Expired - Fee Related CN208037803U (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with rescue door machine |
| CN201721838851.9U Expired - Fee Related CN207827610U (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 |
| CN201721834896.9U Expired - Fee Related CN208103657U (en) | 2017-10-17 | 2017-12-25 | A kind of four door lift car |
| CN201721839786.1U Expired - Fee Related CN207827627U (en) | 2017-10-17 | 2017-12-25 | A kind of counterweight arrangement in elevator traction system |
| CN201711424491.2A Pending CN109665421A (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711424490.8A Pending CN109665394A (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection |
| CN201711425731.0A Pending CN109665416A (en) | 2017-10-17 | 2017-12-25 | A kind of counterweight arragement construction in elevator traction system |
| CN201721834750.4U Expired - Fee Related CN208544972U (en) | 2017-10-17 | 2017-12-25 | Elevator traction mechanism with safety return circuit detection system |
| CN201711425712.8A Pending CN109665426A (en) | 2017-10-17 | 2017-12-25 | The opposed carrying means of elevator counterweight |
| CN201711425729.3A Pending CN109665396A (en) | 2017-10-17 | 2017-12-25 | The anti-error telephone-moving structure of elevator lifting |
| CN201711424564.8A Pending CN109665402A (en) | 2017-10-17 | 2017-12-25 | A kind of drag device with manual rescue mechanism |
| CN201820989189.5U Expired - Fee Related CN208544986U (en) | 2017-10-17 | 2018-06-26 | A kind of anti-error shifting self locking elevator of leveling |
| CN201810668905.4A Pending CN109665424A (en) | 2017-10-17 | 2018-06-26 | A kind of anti-error shifting self locking elevator of leveling |
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| CN (39) | CN109665418A (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665407A (en) * | 2017-10-17 | 2019-04-23 | 陕西小溪机电科技有限公司 | A kind of two-shipper towed elevator based on safety return circuit detection |
| CN111324101A (en) * | 2018-12-13 | 2020-06-23 | 比亚迪股份有限公司 | Contactor control method and device, traction control system and train |
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