CN2286741Y - Frequency-chanageable voltage-variable ac. speed-adjusting dual-purpose elevator both for passenger and goods - Google Patents
Frequency-chanageable voltage-variable ac. speed-adjusting dual-purpose elevator both for passenger and goods Download PDFInfo
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- CN2286741Y CN2286741Y CN 97206591 CN97206591U CN2286741Y CN 2286741 Y CN2286741 Y CN 2286741Y CN 97206591 CN97206591 CN 97206591 CN 97206591 U CN97206591 U CN 97206591U CN 2286741 Y CN2286741 Y CN 2286741Y
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Abstract
The utility model discloses a frequency-changeable voltage-variable alternating current speed-adjusting dual-purpose elevator for passengers and goods. A programmable controller (PC) and a frequency-changeable voltage-variable alternating current speed adjustor is additionally arranged in an electric control cabinet of the utility model. Through the control of lift well and floor signals, speed signals and calling signals by the programmable controller and the control of the frequency-changeable voltage-variable alternating current speed adjustor in a dragging method by instructions in bridges, the utility model can realize the automatic control of frequency conversion, variable voltage and alternating current speed adjustment for passengers and goods.
Description
The utility model relates to a kind of vertical transportation machinery.
At present, widely used goods passwnger lift generally is the AC two speed passenger-goods lift of signal control.The starting of this AC two speed passenger-goods lift generally is by seal in the starting current that impedance reduces motor in the stator winding of motor.Simultaneously, by reducing to be connected on the impedance in the high speed winding, and this impedance of short circuit makes motor reach rated speed of rotation.Its brake snub then adopts pole-changing braking, the i.e. impedance of short circuit in the low speed winding step by step.Like this, the speed adjustable range of motor not only is very restricted, and because speed governing causes the speed governing transition unsmooth step by step, the easypro property of taking is subjected to very big influence.In addition, owing to seal in a lot of impedances in the winding of motor, a part of power consumption is in impedance, so energy consumption is higher.And the long operation of elevator can cause again that the motor feels hot, so its safe reliability is relatively poor.
In view of the above problems, the purpose of this utility model provide that a kind of speed adjustable range is wide, ride comfort, energy consumption is low and safe reliability is good frequency-conversion voltage-varying speed goods passwnger lift.
The purpose of this utility model is based on existing goods passwnger lift, changes that its driving style and mode realize, has promptly added programmable controller and variable-frequency variable-voltage ac speed regulator in its electrical control cabinet.Like this, by programmable controller to the instruction in signal, speed signal, calling signal and the sedan-chair of hoistway floor to driving style---variable-frequency variable-voltage ac speed regulator is controlled, and can realize the automatic guidance of the frequency-conversion voltage-varying speed of goods passwnger lift.
Through the utility model compact conformation after the above-mentioned design, handsome in appearance, it has not only reduced electric elements widely, has reduced energy consumption, and has improved the speed adjustable range and the travelling comfort of elevator.
Specific embodiments of the present utility model is as shown in drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structured flowchart of electrical control cabinet of the present utility model
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
Variable-frequency variable-voltage AC speed regulating goods passwnger lift includes parts such as machine room 1, towing machine 2, velocity limiter 8, electrical control cabinet 9, car 10, car guide rail 13, counterweight guide rail 14, counterweight 15, energy disperser 17, safety tongs, and machine room 1 is arranged at the top of hoistway 11.Towing machine 2, velocity limiter 8 and electrical control cabinet 9 are arranged in the machine room.Towing machine 2 is installed on the pedestal 7, is made up of drive motor 3, drop-gear box 4, magnet stopper 5 and traction sheave 6.Car 10 is positioned at hoistway 11, one end of the hoist ropes 12 on the traction sheave 6 and car 10 top direct connections or the rope sheave by car top are connected with the bearing beam of machine room, and the other end is connected with the bearing beam of machine room with counterweight 15 direct connections or by the rope sheave on the counterweight frame.Car guide rail 13 and counterweight guide rail 14 are arranged on the borehole wall of hoistway 11, and car 10 and counterweight 15 slide on car guide rail 13 and counterweight guide rail 14 respectively by guide rail separately.Energy disperser 17 and safety tongs are installed in respectively on the bottom girder of pit 16 and car frame.In the top of hoistway 11 and pit 16, be provided with three grades of travel switches 18, offside to prevent elevator.
Electrical control cabinet 9 is control centers of goods passwnger lift.In electrical control cabinet, being provided with programmable controller--PC and variable-frequency variable-voltage ac speed regulator, bad break be protector, limit switch and safety return circuit, door machine loop, brake loop etc. mutually.An interface of variable-frequency variable-voltage ac speed regulator is connected with power supply by limit switch, bad break phase protector.In addition two interfaces are connected to form a loop with PC, and its one side is sent the signal of " 0 " speed, fault, operation to PC; On the other hand, accept the speed command of PC, drive motor makes the driving style operation of goods passwnger lift according to frequency control.In order to simplify the structure of electrical control cabinet, reduce manufacturing cost, programmable controller--PC can adopt the commercially available prod, and its model is C60P or NB2 of Fuji or the FX2 of Mitsubishi etc.The variable-frequency variable-voltage ac speed regulator can adopt the commercially available voltage-source type or the variable-frequency governor of current source type, and its model is 616G3 type or 616G5 type or 676VGL, 676VGL3, FRENIC, 5000VG5S type etc.
Mode of operation of the present utility model is achieved like this:
When elevator is the inspection travel state, PC is accepted up (descending) instruction, through PC control output, is input to variable-frequency governor up (descending), repair rate input end, after frequency control, export run signal, thereby the control elevator is with repair rate up (descending).When the variable-frequency governor et out of order, the variable-frequency governor breakdown signal is input to PC, through PC control, stops the elevator operation.
When elevator is in normal working, after PC receives the interior command signal of hoistway floor signal, calling signal and sedan-chair, be input to the input end of variable-frequency governor through PC, PC receives the run signal of variable-frequency governor simultaneously, closes the door in PC control gate machine loop.After door is closed, give PC with signal feedback, PC control brake loop, elevator quickens to move to the fast frequency operation that variable-frequency governor presets from " 0 " speed.When elevator reached the floor of exhaling ladder or instruction, deceleration of elevator was to the frequency of creeping that presets.After elevator arrived at a station, variable-frequency governor output " 0 " fast signal was given PC, and PC output control band-type brake signal stops elevator " 0 " speed.Then, PC opens the door in control gate machine loop again.
When a certain safety facilities of safety return circuit break down, the PC outage, elevator is out of service.The elevator run curve is realized velocity feedback by the ideal curve operation that variable-frequency governor pre-sets with PG, realizes the normal operation of elevator with speed closed loop control.
Claims (3)
1. variable-frequency variable-voltage AC speed regulating goods passwnger lift; include parts such as machine room (1), towing machine (2), velocity limiter (8), electrical control cabinet (9) car (10), car guide rail (13), counterweight (15), energy disperser (17), safety tongs; it is characterized in that in the electrical control cabinet of this goods passwnger lift; be provided with programmable controller--PC and variable-frequency variable-voltage ac speed regulator; an interface of variable-frequency variable-voltage ac speed regulator is connected with power supply by limit switch, bad break phase protector; two interfaces are connected with PC in addition, constitute a control loop
2. variable-frequency variable-voltage AC speed regulating goods passwnger lift according to claim 1 is characterized in that described variable-frequency variable-voltage ac speed regulator is the variable-frequency governor of voltage-source type or current source type.
3. variable-frequency variable-voltage AC speed regulating goods passwnger lift according to claim 1 and 2 is characterized in that described variable-frequency governor is 616G type or 616G5 type or 676VGL type or 676VGL3 type or FRENIC type or 5000VG5S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97206591 CN2286741Y (en) | 1997-02-24 | 1997-02-24 | Frequency-chanageable voltage-variable ac. speed-adjusting dual-purpose elevator both for passenger and goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97206591 CN2286741Y (en) | 1997-02-24 | 1997-02-24 | Frequency-chanageable voltage-variable ac. speed-adjusting dual-purpose elevator both for passenger and goods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2286741Y true CN2286741Y (en) | 1998-07-29 |
Family
ID=33926552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97206591 Expired - Fee Related CN2286741Y (en) | 1997-02-24 | 1997-02-24 | Frequency-chanageable voltage-variable ac. speed-adjusting dual-purpose elevator both for passenger and goods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2286741Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103189295A (en) * | 2010-11-05 | 2013-07-03 | 三菱电机株式会社 | Elevator |
| CN105110130A (en) * | 2015-09-15 | 2015-12-02 | 广东新力欧菲尔电梯有限公司 | AC (Alternating Current) variable frequency speed regulating loading lift assembly |
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
-
1997
- 1997-02-24 CN CN 97206591 patent/CN2286741Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103189295A (en) * | 2010-11-05 | 2013-07-03 | 三菱电机株式会社 | Elevator |
| CN103189295B (en) * | 2010-11-05 | 2015-07-08 | 三菱电机株式会社 | Elevator |
| CN105110130A (en) * | 2015-09-15 | 2015-12-02 | 广东新力欧菲尔电梯有限公司 | AC (Alternating Current) variable frequency speed regulating loading lift assembly |
| CN109132776A (en) * | 2018-11-12 | 2019-01-04 | 江苏伯爵电梯股份有限公司 | It is a kind of low cost have computer room cargo lift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |