CN109665395A - Two-shipper towed elevator configured with safety return circuit detection system - Google Patents

Two-shipper towed elevator configured with safety return circuit detection system Download PDF

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Publication number
CN109665395A
CN109665395A CN201711424492.7A CN201711424492A CN109665395A CN 109665395 A CN109665395 A CN 109665395A CN 201711424492 A CN201711424492 A CN 201711424492A CN 109665395 A CN109665395 A CN 109665395A
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CN
China
Prior art keywords
switch
safety
return circuit
worm
shipper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711424492.7A
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Chinese (zh)
Inventor
陈庆
邓健
李军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Xiaoxi Electromechanical Technology Co Ltd
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Shaanxi Xiaoxi Electromechanical Technology Co Ltd
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Application filed by Shaanxi Xiaoxi Electromechanical Technology Co Ltd filed Critical Shaanxi Xiaoxi Electromechanical Technology Co Ltd
Publication of CN109665395A publication Critical patent/CN109665395A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • 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
    • 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
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0005—Constructional features of hoistways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093—Testing of safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

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

Abstract

The present invention relates to a kind of two-shipper towed elevators configured with safety return circuit detection system, solve the deficiencies in the prior art, technical essential includes two-shipper drag device and safety return circuit detection system, safety return circuit detection system includes: safety return circuit, including master switch, several limit switches and safety switch, power supply is connect by safety return circuit with main safety contactor；Several switch detection modules, each switch detection module is corresponding with a master switch, limit switch or safety switch, the output end for switching detection module is communicated to connect by safety bus and upper-level control system, first test side of switch detection module is connect with the movable contact of master switch, limit switch or safety switch, and the second test side for switching detection module is connect with the stationary contact of master switch, limit switch or safety switch；Safety bus connects all switch detection modules and upper-level control system；Upper-level control system receives the output signal of all switch detection modules by safety bus.

Description

Two-shipper towed elevator configured with safety return circuit detection system
Technical field
The present invention relates to a kind of emergency staircase, especially a kind of two-shipper traction dress with main traction motor and rescue motor Set and be configured with the two-shipper towed elevator of safety return circuit detection system.
Background technique
In skyscraper, in order to adapt to the demand of height change, lifting device is a kind of corollary equipment of indispensability, such as electricity Ladder can bring great convenience to user.
Elevator is a kind of using motor as the vertical conveyor of power, also known as vertical lift.Vertical lift is hung equipped with box-like Cabin multiplies people or carrying cargo for tier building.It is automatically controlled from the modernization of earliest first step safety escalator till now Elevator, although the driving of elevator is most or uses traction-type driving mechanism, including one sets by the development of centuries The traction machine in well headroom is set, traction machine connects traction sheave, and hoist ropes is full of on traction sheave, and one end of hoist ropes connects sedan-chair Compartment, the other end of hoist ropes connect the counterweight for balancing car weight.When traction machine driving traction sheave rotation, it is wound around and drags Rub the tractive force of generation between hoist ropes and traction sheave on running wheel, realizes the elevating movement of carriage and counterweight.
In use, the accident of most serious is exactly rapid aerating-holding or the crouching bottom of carriage to elevator, and less serious case leads to passenger's body Body and elevator it is impaired, it is serious to result even in passenger's death.For this purpose, people devise and various lift running safety can be improved Property device and method, wherein most important mode be exactly on traction machine be arranged an Electromagnetic Control arrestment mechanism.Work as electricity Ladder have a power failure or because elevator failure cause control system can not to elevator supply, electromagnet power loss in arrestment mechanism and lose Magnetic power is removed, arrestment mechanism continues to act by the active force of tripping spring at this time, and locking braking can be realized to traction machine； When elevator has electricity, the electromagnet in arrestment mechanism obtain it is electric, to be arrestment mechanism contact to the locking of traction machine, elevator can be normal Operation.
For example, disclosed one kind " elevator traction machine " in Chinese patent literature, notification number CN2401528Y, including Pedestal, motor, worm gear case, worm screw, worm gear shaft, hanging feet, worm gear, traction sheave, arrestment mechanism, one end of the worm gear shaft are equipped with inclined Heart set is equipped with tie-plate in the middle part of worm gear shaft, and tie-plate one end and worm gear are mutually solid, the other end and traction sheave mutually admittedly, in tie-plate and Bearing is respectively set between worm gear and between tie-plate and traction sheave, is equipped with adjustment in a pair of of hanging feet bottom of setting worm gear shaft Gasket.When work, first power on, so that arrestment mechanism is in energized state by control switch, while motor passes through worm screw band Dynamic worm gear operating, and then traction sheave rotation is driven by tie-plate, the rope of winding on the traction sheave can drive lift car Lifting.When carriage runs to scheduled a certain destination, stall motor by actuating control switch, while by brake Structure is dynamic.Braking principle is as follows: when motor power-off, the solenoid valve power loss of arrestment mechanism, the work that a pair of of band-type brake passes through spring force With locking braked wheel, stall motor shaft rapidly by embracing the frictional force between the cap watt and braked wheel explained, to make elevator car Compartment is stabilized ground stop layers.
But the arrestment mechanism of this structure, band-type brake is needed to apply enclasping force, if the enclasping force of band-type brake is insufficient, sedan-chair Compartment can not fast braking be easy to cause in carriage passenger panic there is also lifting moving.And after band-type brake holds braking tightly, scene It cannot achieve and save oneself, need to be carried out external rescue by special rescue personnel by the mechanism of a series of complex, rescue waits Time it is long, than relatively hazardous, the passenger in carriage cannot be rescued the process of rescue at the first time, may be delayed and be rescued The opportunity helped.
Summary of the invention
The present invention solves existing elevator and carries out emergency braking by band-type brake, is easy to make because the enclasping force of band-type brake is insufficient At carriage can not fast braking, the defect that braking reliability is low, elevator safety is not high provides a kind of two-shipper drag device, Energy fast braking when elevator device breaks down, and locking braking directly is carried out by way of a kind of traction sheave locking, it brakes High reliablity can effectively avoid carriage from rushing to summit or the safety accident at crouching bottom.
This invention also solves existing elevators to save oneself, and needs external professional rescue team to be rescued, carriage It is interior waiting for a long time, it is also easy to lose the defect of the first rescue time, a kind of two-shipper drag device is provided, rescue motor is had, It can be saved oneself in carriage by passenger, win for the first rescue time, improve elevator safety.
The specific technical proposal of the invention is: a kind of two-shipper towed elevator configured with safety return circuit detection system, including Two-shipper drag device and safety return circuit detection system,
Two-shipper drag device includes:
Traction machine, as the power source of carriage lifting, the traction machine is connected to power supply by main safety contactor contact；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes is arranged on traction sheave, and hoist ropes connection carriage is simultaneously led Draw carriage lifting；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and rotates synchronously in company with traction sheave, and worm and wheel engagement is constituted The lockable mechanism of traction sheave；
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 It is mobile that running wheel rotation carries out car deliverance；
Synchronization mechanism, using mechanically operated mode, synchronization mechanism, which connects 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 mutually separates always；
Safety return circuit detection 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 The connection of device coil；
Several switch detection modules, each switch detection module are corresponding with a master switch, limit switch or safety switch, The output end for switching detection module is communicated to connect by safety bus and upper-level control system, switchs the first detection of detection module End is connect with the movable contact of master switch, limit switch or safety switch, switchs the second test side and the master switch, limit of detection module The connection of the stationary contact of bit switch or safety switch；
Safety bus connects all switch detection modules and upper-level control system；
Upper-level control system receives the output signal of all switch detection modules by safety bus.
A worm gear mechanism is arranged in the present invention, and worm gear and traction sheave are coaxially connected.It is known that worm and gear With self-locking, that is to say, that worm gear is unable to drive worm screw rotation, and worm gear rotation can only be driven by worm screw.For this purpose, of the invention One purely mechanic synchronization mechanism is set to realize that worm and wheel is synchronous, worm and wheel keeps synchronizing, and worm screw would not be right Worm gear causes self-locking, that is to say, that worm gear at this time is to drive by traction machine, and worm screw is then to rely on as traction sheave Synchronous machine drives, worm gear and worm screw are in mutually independent state, hinder so that worm screw be made not formed to the rotation of worm gear Hinder.The power source of synchronization mechanism can come from traction machine, is also possible to can also be from traction sheave from worm gear, certainly, come Worm screw is transferred to from the power source of worm gear and needs to be arranged a clutch, which can break when needing worm screw self-locking Transmission is opened, the difference of power source just needs to design the appropriate transmission ratio of synchronization mechanism, thus to guarantee that worm and gear is synchronous.When being When system has a power failure, worm screw stops operating, and reliable mechanical self-latching can be formed to worm gear, to form reliable system to traction sheave It is dynamic；When traction machine is out of control leads to velocity anomaly, worm gear can not form synchronous with worm screw, and worm screw can hinder worm gear automatically at this time Rotation, to can avoid carriage rapid aerating-holding or crouching bottom.It is known that in the prior art, worm and gear is a kind of with certainly The transmission mechanism of effect is locked, in order to improve safety, the biography of some detectable carriage lifting speeds can be arranged in people on elevator Sensor, to cut off the power when fast lifting occurs in carriage and to brake traction machine.And on the one hand worm and gear of the invention has There is self-locking, while may make up a reliable mechanical sensing device, on the one hand ensures to occur in power failure or traction machine different Traction sheave is reliably braked when reason condition, on the other hand can timely perceive the improper operating of traction machine, and then can be significant Safety when ground hoisting elevator is run.Worm gear of the invention is rotated synchronously in company with traction sheave, and worm screw connection rescue motor, this Locate 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 drive rescue motor electricity Arbor rotation, therefore the safety of synchronization mechanism can be reliable, the carrying means safety formed compared to traction machine and traction sheave Coefficient is higher, therefore synchronization mechanism will not cause reaction to carrying means substantially.Worm and gear of the invention is normal in elevator Not the mechanism of a transmission power when operation, and the facewidth of worm screw can be smaller than the space width of worm gear, therefore worm tooth with There can be a gap between the tooth socket of worm gear, to make to keep discrete state between worm tooth and worm-gear toothing, can avoid worm screw It is generated between worm gear and contacts friction, while reducing isochronous controller to the control accuracy requirement of traction machine, synchronous motor revolving speed, The frequent shutdown of elevator caused by avoiding because of the slight deviations of revolving speed between traction machine, synchronous motor.Certainly this is a kind of optimal Working condition, worm and wheel are not in contact, and would not also generate abrasion and noise etc., and this gap is also beneficial to improve The fault-tolerant ability of elevator, as long as keeping worm and wheel synchronous in fact.The present invention includes a rescue motor, rescues motor It is connected with worm screw, when needing to rescue, starting rescue motor at this time can be by rescuing motor driven worm screw, then by snail Bar drives traction sheave rotation by worm gear to drive worm gear to rotate, and realizes carriage lifting, these can be with first by setting Time is realized, can be Background control, is also possible to control in carriage, to obtain for the first rescue time.Synchronization mechanism uses Mechanically operated mode, high reliablity, failure rate is lower, eliminates automatically controlled, reduces costs, also avoids automatically controlled bring not Ballast.The two-shipper of the application just refers to traction machine and rescue motor.
In the present invention, safety return circuit is similar with the safety return circuit of conventional elevator, is all to have several safety devices, limit dress The contacts of contactor set is switched and is constituted for the master switch of button switch or other limit switches, according to function in the present invention Difference is referred to as master switch, several limit switches and safety switch, and this equipment is relatively conventional in elevator device, lifts For example, the upper limit switch of elevator, lower position switch are known as limit switch in the present invention, and the limiting device in door machine has electricity Machine drives, and also referred to as limit switch, safety switch then represents the present invention in the limit switch present invention configured in transmission process Contactless contactor of middle safety device, such as traction motor detection switch etc., the present invention in do not limit, all limit switches and Safety switch is separately mounted on the safety component of the elevator configured with two-shipper drag device, it should be understood that all Limit switch and safety switch, master switch be the prior art；Detection module itself is switched due to included controller, with Safety bus has address when connection, and the mode for making switch detection module have address includes but are not limited to pass through Distributed I/O is connect with upper-level control system, and the element that switch detection module of the invention can be selected is more, in the present invention not Limit specific element, it is only necessary to which it is capable of providing detection and address function, and those skilled in the art can use any Intelligent chip, detection chip, which reach corresponding function, can be realized the purpose of the present invention, and conventional elevator system establishing criteria is all matched Safety return circuit is had, i.e., is connected by several normally closed switch, the power supply of control system active force element.When the movement for touching danger Triggering, corresponding switch just switch to off state by closed state, and safety return circuit disconnects, and contactor unclamps in circuit, system Active force element loses power supply, and system stops.Ensure personnel safety.But in actual use, pushing away with the time It moves, during long-term through-flow, contact resistance is gradually increased each switch, and safety return circuit, which respectively switchs partial pressure, gradually to be increased, and is acted on Voltage on the contactor of control dynamical element is gradually reduced.When pressure drop reaches certain value, contactor will unclamp, and cause Elevator mistakenly stop stops, and causes failure.It is larger to need to find out failed element difficulty behind maintenance staff's arrival scene in numerous switches, Using switch detection module in the present invention, its own address signal is mainly utilized, the direct root when open circuit occurs in safety return circuit Corresponding limit switch and safety switch, master switch are detected according to address signal, can quickly position failed element for maintenance staff, Quasi- failed element is replaced in time provides judgment basis.Upper-level control system itself can provide the number such as position of failed element According to, the component being easily damaged can also be recorded, it, can be by upper for the maintenance in later period, even anticipation, early warning Control system is completed.Upper-level control system controls the power resources including traction machine, this control mode is conventional control Mode processed.
Preferably, synchronization mechanism connection traction machine and worm screw, input source of the traction machine as synchronization mechanism, worm screw is same Walk the output tail of mechanism.Input source of the traction machine as synchronization mechanism herein, worm gear are to rely on traction machine again to drive, traction Machine drives traction sheave that can slow down by primary, and worm gear has the transmission ratio of setting with worm screw again, therefore synchronization mechanism just needs basis Traction machine and the transmission ratio of worm screw carry out the transmission ratio of final design synchronization mechanism.
Preferably, synchronization mechanism connection traction sheave and worm screw, input source of the traction sheave as synchronization mechanism, 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, the transmission ratio of synchronization mechanism will be designed according to the transmission ratio between traction sheave and worm screw at this time.
Preferably, synchronization mechanism includes clutch, when being powered, clutch keeps transmission, when no electricity, Clutch disconnects transmission.Synchronization mechanism includes clutch, and the inertia rotation generated after traction machine braking in this way is not transferred to Worm screw influences final braking so that worm screw be avoided to continue to rotate driving turbine rotation.Increase clutch, clutch can be When traction sheave is braked, synchronization mechanism is directly disconnected, so that worm screw plays self-locking effect 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 electricity to operate normally, electromagnetic clutch is worked normally, and synchronization mechanism works normally at this time, works as Lift out of order, this When for security consideration, cut off elevator supply, electromagnetic clutch disconnects synchronization mechanism at this time, and worm screw does not have external impetus input pair Worm gear is realized self-locking.
Preferably, synchronization mechanism includes a drive rod, drive rod is parallel with the pivot center of traction sheave, drive rod and snail Between bar by can 90 ° change transmission directions transmission mechanisms connection.The pivot center phase of the pivot center of worm screw and traction sheave Vertically, thus synchronization mechanism include a drive rod and one can 90 ° steering transmission mechanisms, by 90 ° of transmission mechanism turn to after, 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 rod 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 rod.Or other end output passes through synchronous belt and transmission Bar connection.
Preferably, rescue motor is connected with backup power source, the backup power source uses battery or generating electricity from manpower Machine.When elevator operates normally, rescue motor is in no-load condition, that is to say, that rescue motor at this time is not powered, and is rescued Helping motor is free state, and worm screw rotates synchronously under the driving of synchronization mechanism with worm gear, at this point, rescue motor drives in worm screw Under make and follow movement, 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 is exactly simply elevator power failure, just needs to carry out rescue motor by backup power source at this time short Power supply in time can drive worm screw to rotate to make to rescue motor, and worm screw drives worm gear rotation, and worm gear drives traction sheave rotation, Rescue is realized to carry out leveling by the lifting of traction wire saws carriage, and backup power source can use battery, and battery compares It is convenient, it is also beneficial to simplify structure or backup power source using man-power generator, power generation is carried out by manpower and is supplied to rescue motor Electricity.
Preferably, the generating electricity from manpower mechanism of man-power generator is set to the hiding position in carriage.Man-power generator Position is in the hiding position of carriage, does not influence cab interior space, passenger will not be interfered to stand, and man-power generator is hidden Afterwards, passenger's maloperation in carriage 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.
Preferably, switch detection module includes checking judgment module, timesharing circulation energization module and controller, the inspection The output end for looking into judgment module is communicated to connect by safety bus and upper-level control system, and the inspection judgment module first detects End is the high frequency output end connecting with the movable contact of master switch, limit switch or safety switch, checks the second inspection of judgment module Surveying end is the pile-up pulse test side connecting with the stationary contact of master switch, limit switch or safety switch, checks judgment module High-frequency signal input terminal is electrically connected with timesharing circulation energization module, and the control terminal of timesharing circulation energization module is electrically connected with controller It connects.
Each switch detection module information in bus is gradually requested in the present invention in a cycle.Each switch detection module Switching information in collected respectively corresponding safety return circuit is sent to upper-level control system.At interval of just running for a period of time Once.During system power transmission, circular flow detects program.When detection program is not limited to elevator operation, when elevator device is standby Also it needs to run.
Each switch detection module is independently-powered, has from the function of encoding upper bus.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 of sending 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, in the present invention, to the first test side It 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 one High frequency output is held, the technical solution of the application can be realized, and therefore, the present invention is to element model in second end pile-up pulse detection Itself is without limitation.
There are two types of working conditions of the invention,
Switch disconnects: because pulse test circuit can not constitute circuit, the high-frequency impulse that signal detection end output port issues is inputted Port can not detect, judge that switch state disconnects.Without accumulation, measuring analog quantity is 0 for pulse.It is upward by signal transmission passage Position machine feedback switch signal disconnects, and the analog quantity of accumulation is 0.
Close the switch: the high-frequency impulse that signal detection end output port issues detects the pulse letter of same frequency in input port Number, judge that switch state is closed.The analog quantity of pulse accumulation can reflect switch contact resistance sizes.Stablize in supply voltage, 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.The mould Analog quantity is bigger, illustrates that contact resistance is smaller, and pulse energy is lost smaller.
Preferably, the power supply is connected by the input terminal of low-pass filter and safety return circuit, the output of safety return circuit End is connect by a low-pass filter with main safety contactor coil, and each pile-up pulse test side for checking judgment module is equal It is connected by a high-pass filter with the stationary contact of corresponding master switch, limit switch or safety switch.In the present invention, always open In actual use, over time, each switch is in long-term through-flow process for pass, limit switch or safety switch In, contact resistance is gradually increased, therefore cannot be equal to ideal circuit, checks that the pulse of judgment module output end is reaching stationary contact The direction of short circuit, i.e. pile-up pulse test side are selected after point, and pile-up pulse quantity is calculated by pile-up pulse test side, reaches calculating The effect of current resistance.
The beneficial effects of the present invention are: the reliable braking of traction sheave can be realized when elevator device has a power failure or breaks down, Carriage is effectively prevented to rush to summit or the safety accident at crouching bottom；Failed element can be quickly also positioned for maintenance staff, is replaced in time Quasi- failed element provides judgment basis.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the invention；
Fig. 2 is the structural schematic diagram of second of embodiment of the invention；
Fig. 3 is the structural schematic diagram of the third embodiment of the invention；
Fig. 4 is the circuit diagram of safety return circuit system of the present invention.
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 rod, 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 embodiment
Below by specific embodiment, and in conjunction with attached drawing, the invention 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 synchronization mechanism.
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 gone up and down with precision control revolving speed, traction machine as carriage.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 synchronization mechanism.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 after angle pulley with counterweight, traction sheave and hoist ropes collectively form traction The action actuating mechanism of carriage lifting.When traction machine output torque is to drive traction sheave to rotate, winding draging on the traction sheave The decline of messenger one end, the other end rises, to draw the lifting of carriage.When the carriage connecting with hoist ropes one end rises, with The hoist ropes other end connection to re-synchronize decline；Conversely, when the cage descending being connect with hoist ropes one end, it is another with hoist ropes One end connection to re-synchronize rise.
Worm gear mechanism includes intermeshing worm gear and worm screw, and worm gear is coaxially connected with traction sheave and in company with traction sheave It rotates synchronously, worm and wheel engagement constitutes the lockable mechanism of traction sheave.When elevator works normally, worm tooth and worm-gear toothing phase point From there are symmetrical gap between worm tooth and worm-gear toothing, the gap is designed as 2mm in the present embodiment, and the gap of 2mm makes snail Bar can have a discontiguous rotational angle with respect to worm gear, so that there is enough fault-tolerant surpluses between worm and wheel, in order to Guarantee that worm screw will not form locking to worm gear, just need to drive worm screw at this time, so that turn of the revolving speed of worm screw and worm gear Speed matches, and worm gear is rotated synchronously in company with traction sheave at this time, and worm screw rotates synchronously, and worm tooth remains and worm-gear toothing phase point From.Worm gear mechanism is connected with encoder 6, and encoder is mainly the rotation for monitoring worm gear, also carries out to the rotation of worm gear anti- Feedback, that is, the working order of traction sheave can be monitored by encoder.
To realize that worm screw is synchronous, the present invention uses mechanically operated synchronization mechanism, in the present embodiment, the power of synchronization mechanism From traction machine.Synchronization mechanism includes a drive rod 9, and drive rod is parallel with the pivot center of traction sheave, drive rod and worm screw Between by can 90 ° change transmission directions transmission mechanisms connection.In the present embodiment can 90 ° change transmission direction transmission mechanism Using bevel gear pair, including intermeshing drive bevel gear 8 and driven wheel of differential 7, drive bevel gear is connected with drive rod, Driven wheel of differential is connected with worm screw.The other end of traction sheave, which is exported, to be connected between end corresponding with drive rod by gear pair It connects, gear pair includes driving gear 11 and driven gear 10, the output axis connection of driving gear and traction sheave, driven gear and is passed End part of movable rod connection, driving gear is parallel with driven gear axis to be engaged.The transmission arm of gear pair and bevel gear pair will be according to draging Rotating ratio between running wheel and worm screw designs, and traction machine drives traction sheave rotation, the rotation of traction sheave synchronous drive worm gear, worm gear There is fixed rotating ratio with worm screw, this is, carries out transmission by synchronization mechanism and needs identical rotating ratio.When event occurs in elevator Hindering, elevator stops power supply at this time, and synchronization mechanism stops transmission, and worm screw is self-locking to worm gear progress, and traction sheave is locked up simultaneously, thus Guarantee that carriage stops.
In order to which when elevator breaks down, the timely of passenger is saved oneself, the present invention devises rescue motor 4, rescues motor and snail Bar connection, rescue motor are connected with backup power source.It rescues motor and only drives worm screw rotation when need to rescue, and then drive snail Wheel rotates and traction sheave rotation is driven to carry out car deliverance movement.It rescues motor and worm screw is coaxially connected, when elevator works normally, Rescue motor is not powered, and rescuing motor at this time will not drive worm screw to rotate, and worm screw is rotated by synchronization mechanism, rescue electricity Machine follows worm screw to be freely rotated.Carriage stops in the case where worm and gear is self-locking after elevator faults, spare when needing to rescue Power supply gives rescue motor power supply, rescue motor driven worm screw rotation, and worm screw drives worm gear rotation, and worm gear drives traction sheave rotation, Traction sheave goes up and down nearest leveling by traction wire saws carriage, achievees the purpose that rescue at the first time.This backup power source can be with It charges 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 synchronization mechanism.
Synchronization mechanism includes a drive rod 9, and drive rod is parallel with the pivot center of traction sheave, is led between drive rod and worm screw Cross can 90 ° change transmission directions transmission mechanisms connection.In the present embodiment, can 90 ° change transmission directions transmission mechanisms use 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 rod it is another One end is connected by synchronous belt 15 with traction machine output end.The end of drive rod 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 rod, drive rod 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.
Synchronization mechanism, using mechanically operated mode, synchronization mechanism connect with worm screw and worm screw is driven to keep same with worm gear Step rotation, when elevator runs well, worm and wheel mutually separates always.
Description of the other structures of the present embodiment referring 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 rod 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 referring to embodiment 1.
Traction machine described in all embodiments described above is connected to power supply by main safety contactor contact；Safety return circuit inspection Examining system (referring to attached drawing 4) includes: safety return circuit, including master switch, several limit switches and safety switch, power supply pass through peace Full loop is connect with main safety contactor coil；Several switch detection modules, each switch detection module are corresponding with one Master switch, limit switch or safety switch, the output end for switching detection module are communicated by safety bus with upper-level control system Connection, the first test side for switching detection module are connect with the movable contact of master switch, limit switch or safety switch, switch detection Second test side of module is connect with the stationary contact of master switch, limit switch or safety switch；Safety bus connects all switches Detection module and upper-level control system；Upper-level control system is believed by the output that safety bus receives all switch detection modules Number.Switching detection module includes checking judgment module, timesharing circulation energization module and controller, described to check the defeated of judgment module Outlet is communicated to connect by safety bus and upper-level control system, the first test side of the inspections judgment module for master switch, The high frequency output end of the movable contact of limit switch or safety switch connection checks that the second test side of judgment module is and always opens It closes, the pile-up pulse test side of the stationary contact connection of limit switch or safety switch, checks the high-frequency signal input of judgment module End is electrically connected with timesharing circulation energization module, and the control terminal of timesharing circulation energization module is electrically connected with the controller.The power supply is logical The input terminal for crossing low-pass filter and safety return circuit connects, and the output end of safety return circuit passes through a low-pass filter and main safety Contactor coil connection, it is each check judgment module pile-up pulse test side pass through a high-pass filter with it is corresponding always The stationary contact connection of switch, limit switch or safety switch.
In all embodiments of the invention, safety return circuit is similar with the safety return circuit of conventional elevator, is all to have several safety Device, limiting device contacts of contactor switch and be that the master switch of button switch or other limit switches are constituted, the present invention The middle difference according to function is referred to as master switch, several limit switches and safety switch, and this equipment is in elevator device In it is relatively conventional, for switch detection module itself due to included controller, the controller in embodiment can be single-chip microcontroller, so Having address when connecting with safety bus, the element that switch detection module of the invention can be selected is more, this Specific element is not limited in invention, it is only necessary to which it is capable of providing detection and address function, and those skilled in the art can be with Reaching corresponding function using any intelligent chip, detection chip can be realized the purpose of the present invention, conventional elevator system foundation Standard is equipped with safety return circuit, i.e., is connected by several normally closed switch, the power supply of control system active force element.It endangers when touching The action triggers of danger, corresponding switch just switch to off state by closed state, and safety return circuit disconnects, contactor pine in circuit It opens, system active force element loses power supply, and system stops.Ensure personnel safety.But in actual use, with when Between passage, during long-term through-flow, contact resistance is gradually increased each switch, and safety return circuit, which respectively switch to divide, gradually to be increased More, the voltage acted on the contactor of control dynamical element is gradually reduced.When pressure drop reaches certain value, contactor will pine It opens, elevator mistakenly stop is caused to stop, cause failure.Maintenance staff need to find out failed element hardly possible in numerous switches after reaching scene Spend it is larger, the present invention in using switch detection module, mainly utilize its own address signal, safety return circuit occur open circuit when Directly according to the corresponding limit switch of address signal detection and safety switch, master switch, mistake can be quickly positioned for maintenance staff Element is imitated, quasi- failed element is replaced in time and provides judgment basis.Upper-level control system itself can provide the position of failed element It the data such as sets, the component being easily damaged can also be recorded, for the maintenance in later period, even anticipation, early warning, is ok It is completed by upper-level control system.
Each switch detection module information on safety bus is gradually requested in safety circuit detecting system a cycle. Switching information in collected respectively corresponding safety return circuit is sent to upper-level control system by each switch detection module.At interval of A period of time, just operation was primary.During system power transmission, circular flow detects program.When detection program is not limited to elevator operation, It also needs to run when elevator device is standby.
Each switch detection module is independently-powered, has from the function of encoding upper bus.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 of sending 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, in the present invention, to the first test side It 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 one High frequency output is held, the technical solution of the application can be realized, and therefore, the present invention is to element model in second end pile-up pulse detection Itself is without limitation.
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 issues is inputted Port can not detect, judge that switch state disconnects.Without accumulation, measuring analog quantity is 0 for pulse.It is upward by signal transmission passage Position machine feedback switch signal disconnects, and the analog quantity of accumulation is 0.
Close the switch: the high-frequency impulse that signal detection end output port issues detects the pulse letter of same frequency in input port Number, judge that switch state is closed.The analog quantity of pulse accumulation can reflect switch contact resistance sizes.Stablize in supply voltage, 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.The mould Analog quantity is bigger, illustrates that contact resistance is smaller, and pulse energy is lost smaller.
Embodiment 4:
In the present embodiment, it is also configured with several point of control system, each a point control system has been correspondingly connected with several switch inspections Module is surveyed, each divides the input terminal of control system and switch detection module direct-connected, divides the output end and upper control of control system System connection, rest part are same as the previously described embodiments.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within the technology of the present invention side The protection scope of case.

Claims (10)

1. a kind of two-shipper towed elevator configured with safety return circuit detection system, which is characterized in that including two-shipper drag device and Safety return circuit detection system,
Two-shipper drag device includes:
Traction machine, as the power source of carriage lifting, the traction machine is connected to power supply by main safety contactor contact；
Traction sheave connect with traction machine and is driven by traction machine, and hoist ropes is arranged on traction sheave, and hoist ropes connection carriage is simultaneously led Draw carriage lifting；
Worm gear mechanism, worm gear is coaxially connected with traction sheave and rotates synchronously in company with traction sheave, and worm and wheel engagement is constituted The lockable mechanism of traction sheave；
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 It is mobile that running wheel rotation carries out car deliverance；
Synchronization mechanism, using mechanically operated mode, synchronization mechanism, which connects 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 mutually separates always；
Safety return circuit detection 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 The connection of device coil；
Several switch detection modules, each switch detection module are corresponding with a master switch, limit switch or safety switch, The output end for switching detection module is communicated to connect by safety bus and upper-level control system, switchs the first detection of detection module End is connect with the movable contact of master switch, limit switch or safety switch, switchs the second test side and the master switch, limit of detection module The connection of the stationary contact of bit switch or safety switch；
Safety bus connects all switch detection modules and upper-level control system；
Upper-level control system receives the output signal of all switch detection modules by safety bus.
2. the two-shipper towed elevator according to claim 1 configured with safety return circuit detection system, which is characterized in that synchronous Mechanism connects traction machine and worm screw, input source of the traction machine as synchronization mechanism, and worm screw is the output tail of synchronization mechanism.
3. the two-shipper towed elevator according to claim 1 configured with safety return circuit detection system, which is characterized in that synchronous Mechanism connects traction sheave and worm screw, input source of the traction sheave as synchronization mechanism, and worm screw is the output tail of synchronization mechanism.
4. the two-shipper towed elevator according to claim 1 or 2 or 3 configured with safety return circuit detection system, feature exist In synchronization mechanism includes clutch, and when being powered, clutch keeps transmission, and when no electricity, clutch, which disconnects, to be passed It is dynamic.
5. the two-shipper towed elevator according to claim 1 or 2 or 3 configured with safety return circuit detection system, feature exist In synchronization mechanism includes a drive rod, and drive rod is parallel with the pivot center of traction sheave, and passing through between drive rod and worm screw can The transmission mechanism connection of 90 ° of change transmission directions.
6. the two-shipper towed elevator according to claim 5 configured with safety return circuit detection system, which is characterized in that transmission Mechanism uses bevel gear pair or worm and gear.
7. the two-shipper towed elevator according to claim 5 configured with safety return circuit detection system, which is characterized in that traction Machine uses transmitted in both directions structure, and one end output is connect with traction sheave, and other end output is connect by gear pair with drive rod.
8. the two-shipper towed elevator according to claim 5 configured with safety return circuit detection system, which is characterized in that traction Machine uses transmitted in both directions structure, and one end output is connect with traction sheave, and other end output is connect by synchronous belt with drive rod.
9. a kind of two-shipper drag device according to claim 1 or 2 or 3, which is characterized in that switch detection module includes inspection Look into judgment module, timesharing circulation energization module and controller, the output end for checking judgment module by safety bus with it is upper Level controlling system communication connection, inspection first test side of judgment module are and master switch, limit switch or safety switch The high frequency output end of movable contact connection checks that the second test side of judgment module is and master switch, limit switch or safety switch Stationary contact connection pile-up pulse test side, check judgment module high-frequency signal input terminal and timesharing circulation energization module electricity The control terminal of connection, timesharing circulation energization module is electrically connected with the controller.
10. a kind of two-shipper drag device according to claim 1 or 2 or 3, which is characterized in that the power supply passes through low pass The output end of the connection of the input terminal of filter and safety return circuit, safety return circuit passes through a low-pass filter and main safety contactor Coil connection, each pile-up pulse test side for checking judgment module pass through a high-pass filter and corresponding master switch, The connection of the stationary contact of limit switch or safety switch.
CN201711424492.7A 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system Pending CN109665395A (en)

Applications Claiming Priority (2)

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

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Publication Number Publication Date
CN109665395A true CN109665395A (en) 2019-04-23

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Family Applications (37)

Application Number Title Priority Date Filing Date
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
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
CN201711299460.9A Pending CN109665419A (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
CN201721839486.3U Expired - Fee Related CN208037765U (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201711423198.4A Pending CN109665412A (en) 2017-10-17 2017-12-25 A kind of opposed drag device of elevator
CN201711425732.5A Pending CN109665423A (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
CN201721839185.0U Expired - Fee Related CN207827649U (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201721834837.1U Expired - Fee Related CN208631856U (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system
CN201721838714.5U Expired - Fee Related CN208037802U (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
CN201711425682.0A Pending CN109665429A (en) 2017-10-17 2017-12-25 A kind of gate layer door system based on safety return circuit detection
CN201721834750.4U Expired - Fee Related CN208544972U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection system
CN201721836246.8U Expired - Fee Related CN208249599U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with 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
CN201721838853.8U Expired - Fee Related CN207827644U (en) 2017-10-17 2017-12-25 A kind of opposed tracting structure of elevator
CN201711425699.6A Active CN109665417B (en) 2017-10-17 2017-12-25 Four-door elevator car
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
CN201711424501.2A Pending CN109665428A (en) 2017-10-17 2017-12-25 A kind of elevator door-motor system based on safety return circuit detection
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
CN201721839184.6U Expired - Fee Related CN208037803U (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201721839786.1U Expired - Fee Related CN207827627U (en) 2017-10-17 2017-12-25 A kind of counterweight arrangement in elevator traction system
CN201711425687.3A Pending CN109665407A (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201711424491.2A Pending CN109665421A (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
CN201711423217.3A Pending CN109665420A (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721834896.9U Expired - Fee Related CN208103657U (en) 2017-10-17 2017-12-25 A kind of four door lift car
CN201711424564.8A Pending CN109665402A (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201711424492.7A Pending CN109665395A (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured 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
CN201711425678.4A Pending CN109665403A (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711425674.6A Pending CN109665422A (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detection system and manual rescue device
CN201810668905.4A Active CN109665424B (en) 2017-10-17 2018-06-26 Self-locking elevator for preventing mistaken movement of flat floor
CN201820989189.5U Expired - Fee Related CN208544986U (en) 2017-10-17 2018-06-26 A kind of anti-error shifting self locking elevator of leveling

Family Applications Before (31)

Application Number Title Priority Date Filing Date
CN201721701151.5U Expired - Fee Related CN207792432U (en) 2017-10-17 2017-12-08 A kind of drag device with manual rescue device
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
CN201711299460.9A Pending CN109665419A (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
CN201721839486.3U Expired - Fee Related CN208037765U (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism
CN201711423198.4A Pending CN109665412A (en) 2017-10-17 2017-12-25 A kind of opposed drag device of elevator
CN201711425732.5A Pending CN109665423A (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
CN201721839185.0U Expired - Fee Related CN207827649U (en) 2017-10-17 2017-12-25 The opposed carrying means of elevator counterweight
CN201721834837.1U Expired - Fee Related CN208631856U (en) 2017-10-17 2017-12-25 Two-shipper towed elevator configured with safety return circuit detection system
CN201721838714.5U Expired - Fee Related CN208037802U (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
CN201711425682.0A Pending CN109665429A (en) 2017-10-17 2017-12-25 A kind of gate layer door system based on safety return circuit detection
CN201721834750.4U Expired - Fee Related CN208544972U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with safety return circuit detection system
CN201721836246.8U Expired - Fee Related CN208249599U (en) 2017-10-17 2017-12-25 Elevator traction mechanism with 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
CN201721838853.8U Expired - Fee Related CN207827644U (en) 2017-10-17 2017-12-25 A kind of opposed tracting structure of elevator
CN201711425699.6A Active CN109665417B (en) 2017-10-17 2017-12-25 Four-door elevator car
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
CN201711424501.2A Pending CN109665428A (en) 2017-10-17 2017-12-25 A kind of elevator door-motor system based on safety return circuit detection
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
CN201721839184.6U Expired - Fee Related CN208037803U (en) 2017-10-17 2017-12-25 A kind of drag device with rescue door machine
CN201721839786.1U Expired - Fee Related CN207827627U (en) 2017-10-17 2017-12-25 A kind of counterweight arrangement in elevator traction system
CN201711425687.3A Pending CN109665407A (en) 2017-10-17 2017-12-25 A kind of two-shipper towed elevator based on safety return circuit detection
CN201711424491.2A Pending CN109665421A (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
CN201711423217.3A Pending CN109665420A (en) 2017-10-17 2017-12-25 A kind of drag device with safety tongs
CN201721834896.9U Expired - Fee Related CN208103657U (en) 2017-10-17 2017-12-25 A kind of four door lift car
CN201711424564.8A Pending CN109665402A (en) 2017-10-17 2017-12-25 A kind of drag device with manual rescue mechanism

Family Applications After (5)

Application Number Title Priority Date Filing Date
CN201721834840.3U Expired - Fee Related CN208103630U (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711425678.4A Pending CN109665403A (en) 2017-10-17 2017-12-25 A kind of concealed two-shipper drag device of counterweight
CN201711425674.6A Pending CN109665422A (en) 2017-10-17 2017-12-25 Elevator configured with safety return circuit detection system and manual rescue device
CN201810668905.4A Active CN109665424B (en) 2017-10-17 2018-06-26 Self-locking elevator for preventing mistaken movement of flat floor
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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CN208037781U (en) 2018-11-02
CN109665402A (en) 2019-04-23
CN109665417A (en) 2019-04-23
CN207792401U (en) 2018-08-31
CN109665419A (en) 2019-04-23
CN208544986U (en) 2019-02-26
CN109665416A (en) 2019-04-23
CN109665423A (en) 2019-04-23
CN109665403A (en) 2019-04-23
CN109665396A (en) 2019-04-23
CN109665428A (en) 2019-04-23
CN208249599U (en) 2018-12-18
CN109665412A (en) 2019-04-23
CN208103657U (en) 2018-11-16
CN208103630U (en) 2018-11-16
CN208037768U (en) 2018-11-02
CN109665422A (en) 2019-04-23
CN208544972U (en) 2019-02-26
CN109665401A (en) 2019-04-23
CN109665420A (en) 2019-04-23
CN208037765U (en) 2018-11-02
CN207827644U (en) 2018-09-07
CN109665421A (en) 2019-04-23
CN109665424B (en) 2024-04-26
CN109665406A (en) 2019-04-23
CN207792432U (en) 2018-08-31
CN207827649U (en) 2018-09-07
CN109665426A (en) 2019-04-23
CN109665429A (en) 2019-04-23
CN109665394A (en) 2019-04-23
CN109665417B (en) 2024-06-04
CN207827627U (en) 2018-09-07
CN208037803U (en) 2018-11-02
CN109665424A (en) 2019-04-23
CN208054690U (en) 2018-11-06
CN109665407A (en) 2019-04-23

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