CN1718524A - Control method of automatic landing of dragging type construction lifter and measuring device used by said method - Google Patents
Control method of automatic landing of dragging type construction lifter and measuring device used by said method Download PDFInfo
- Publication number
- CN1718524A CN1718524A CN 200410045030 CN200410045030A CN1718524A CN 1718524 A CN1718524 A CN 1718524A CN 200410045030 CN200410045030 CN 200410045030 CN 200410045030 A CN200410045030 A CN 200410045030A CN 1718524 A CN1718524 A CN 1718524A
- Authority
- CN
- China
- Prior art keywords
- micro controller
- controller system
- type
- control method
- data value
- 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
Links
Images
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
A control method for automatic floor alignment of a pull-up lifter used for engineering construction includes such steps as inputting the lifting height to single-chip computer, converting it to object data, storing it, using position sensor to acquire the total circumference sum of a driven wheel rotating synchronously with steel cable, comparing it with said object data, sending a signal to motor and brake when the comparison result is equal to a predefined value near said object data, turning-off the motor while turning-on brake, and inertial movement until it is stopped at the object floor. Its measuring device is composed of a driven wheel and a position sensor.
Description
Technical field
The present invention relates to a kind of control method of building hoist automatic leveling and the measurement mechanism of steel rope running length, particularly a kind of control method of traction-type construction lifting machine automatic leveling and the employed measurement mechanism of this method.
Background technology
At present the traction-type construction lifting machine that uses of building ground is general adopts manually control, utilizes the disconnected of contactless switch and engages, controls stopping and turning round of motor, and controls the forward and reverse of motor by controlling knob.It is exactly that building hoist is being difficult to the location in the operation process up and down that such control method is brought a problem, needs to finish by range estimation.But, cause very big error easily because range estimation is inaccurate.Particularly during flat bed, often want repeatedly starting and stopping, just can be positioned at needed position, therefore be difficult to satisfy the construction needs.Building hoist uses many automatic floor approaching mechanisms can be divided into digital control type automatic leveling and electric-controlled type automatic floor approaching mechanism at present.The digital control type automatic floor approaching mechanism is disclosed Chinese patent of CN2584579Y " the microcomputerized control platform that the construction jacking equipment is used " and the disclosed Chinese patent of publication number CN2257282Y " building crane digital control implement " just like publication number, and this digital control implement is that the sensor of rotation optical encoder as the hanging basket position is housed in the rotating shaft of lifting drum.The principle of these two kinds of controllers is identical basically.Utilize micro controller system according to the working state signal from winch feedback, when cage will be near destination, micro controller system sent halt instruction, cuts off main motor and braking motor dead electricity by contactless switch, brakes main motor, makes the slow flat bed of cage.Though above-mentioned two kinds of layers control sets are more suitable on the winding type building hoist, are unpractical for traction-type construction lifting machine.This be because in the operating process of traction-type construction lifting machine usually because overload, steel rope is moistened by rain or air in dust concentration too high and steel rope occurs and skid or wriggle, the signal of coming from winch just can not truly reflect the length of steel rope walking like this, thereby can not comparatively accurately control the position that cage stops.Also have these two kinds of layers control sets also can cause repeat count, the accuracy that influence is measured because of the swing of steel rope.And the electric-controlled type automatic floor approaching mechanism is the leveling device that the disclosed Chinese patent of CN2210172Y " building hoist security monitor " is adopted as publication number, all be all to be equipped with at every layer to turn round sub-gang switch and travel switch, each layer turn round that sub-gang switch and travel switch interconnect with the relay of each layer and electric bell respectively.Elevator rises or when dropping to predetermined floor, hangs the blue travel switch that touches, and makes relay conducting and self-locking, and then motor is opened circuit and the band-type brake device is in " braking " state, and elevator is just out of service and stop on the predetermined floor like this.When elevator will continue to rise or descend, press the sub-gang switch of turning round of this layer, just can make the conducting of band-type brake device and be in " declutching " state.Motor conducting simultaneously is forward or reverse immediately.The shortcoming that this electric-controlled type automatic floor approaching mechanism exists is exactly that control line of each layer needs and concentration line are controlled, and the number of plies is many more, and control line is just many more, therefore often maintains difficulty owing to complex circuit causes in skyscraper.
Summary of the invention
One of purpose of the present invention provides a kind of comparatively accurately control method of the traction-type construction lifting machine automatic leveling of flat bed, to solve many weak points that existing flat bed control method is brought.
In order to realize the foregoing invention purpose, the technical solution adopted in the present invention is: a kind of control method of traction-type construction lifting machine automatic leveling, it is characterized in that the altitude information that earlier the elevator desire is risen or descends is input in the micro controller system, micro controller system becomes it into the target data values storage; Micro controller system collects the perimeter signal data value of the flower wheel rotation of rotating synchronously with steel rope by position-type sensor then, and perimeter signal data value and target data values compared, when the perimeter signal data value equals a reserved value that approaches target data values, micro controller system sends drive signal to motor and band brake apparatus driving circuit, make the motor outage and band brake apparatus is braked rapidly, elevator utilizes inertia to be parked in destination layer; At this moment position-type sensor collects the perimeter signal data value that the flower wheel that rotates synchronously with steel rope rotates and equals target data values.
Certainly said method can also be when the perimeter signal data value equals a reserved value that approaches target data values, micro controller system sends drive signal to motor-drive circuit, make the motor outage, elevator utilizes inertia to continue to rise, when micro controller system collects perimeter signal data value that the flower wheel that rotates synchronously with steel rope rotates when equaling target data values by position-type sensor, micro controller system sends a signal for the band-type brake driving circuit, drives the rapid braking of band brake apparatus and makes the elevator destination layer.
Two of purpose of the present invention provides a kind of comparatively accurately employed measurement mechanism of control method of the traction-type construction lifting machine automatic leveling of flat bed.
This measurement mechanism comprises that a flower wheel that rotates synchronously with steel rope and one are used to measure the position-type sensor of the perimeter signal data value that flower wheel rotates, and both are installed in.
Described flower wheel is a sensing gear.
Described position-type sensor is a kind of position-type sensor that can be used for measuring the number of teeth that the sensing gear rotates, and it can export the square-wave signal of two-way band phase difference.
The present invention compared with prior art has the control accuracy height, leveling accuracy, measurement mechanism advantage of simple structure.The present invention utilizes the automatic memory principle of micro controller system, and the driving surface of required flat bed is selected memory, and cage operates according to mode selected, accurately rests on the driving surface.Kick the beam or when overweight when cage loads, but during nonoverload, the micro controller system automatically regulating reaches control area.The present invention is simple to operate, reaches assigned work face as need, only needs by keyboard input corresponding digital key, and motor starts automatically, behind the driving surface of arrival appointment, and auto-stop.
Description of drawings
Fig. 1 is the structural representation of measurement mechanism of the present invention;
Fig. 2 is that the A of Fig. 1 is to view.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the measurement mechanism that uses in the present embodiment comprises the sensing gear 2 and the position-type sensor 3 that is used to measure the sensing gear 2 rotation numbers of teeth that rotate synchronously with steel rope 1, and both are installed on the support 4 of elevator.Position-type sensor 3 can adopt the two-way tachogenerator of selling on the market at present, and its operating voltage 12V, response frequency 0.3HZ-25KHZ, output signal are two-way square wave (high level; Approximate power line voltage, low level is less than 0.3V); 90 ° of phase differences.
Employed micro controller system is 8301 type micro controller systems in the present embodiment.
Method of operation in the present embodiment is earlier by keyboard depth of building or each layer height to be input to micro controller system as in the target data values and set, in the time of also can being elevated to a certain floor flat bed for the first time by cage, the transmission number of teeth that the sensing gear 2 that records rotates is that aforesaid target data values stores.Import destination layer numeral or adjustable height by keyboard during operation, CPU in the micro controller system will promote through computing and decline number of floor levels or lifting and falling head are converted into the sensing gear 2 cooresponding numbers of teeth, the perimeter signal data value of the flower wheel rotation that just foregoing and steel rope 1 rotate synchronously.Suppose that gear whenever turns around, cage can rise or decline 900mm, if cage is promoted 18m, then sensing gear 2 should change 18000 ÷ 900=2 circle, if the number of teeth of sensing gear is 180, then the number of teeth that turns over of sensing gear 2 should be 20 * 180=3600.That is to say that cage rises or decline 900mm, sensing gear 2 should turn over 3600 teeth.
If establish corresponding 100 numbers of teeth of the lead of reservation, then micro controller system memorizes 3500 teeth also as shutting down conventional number as a reserved value that approaches target data values.
During work; after motor rotates; drive sensing gear 2 rotation synchronously by steel rope 1; the square-wave signal that the number of teeth that position-type sensor 3 turns over the sensing gear 2 that records converts two-way band phase difference to is transported in the micro controller system; begin plus coujnt by the counting machine in the micro controller system; sensing gear 3 revolutions are crossed a number of teeth, and counting machine adds 1, number of every meter; the number that micro controller system just will add up promptly 3500 compares with the shutdown conventional number; when count value is 3499, change a tooth again, micro controller system just sends the shutdown drive signal to motor-drive circuit; make the motor outage; but cage still inertia rises, and steel rope 1 continues to move, and counting machine continues counting.When cage arrived at the destination, the number that counting machine adds up was converted into the sensing gear 2 cooresponding numbers of teeth when equating with promoting number of floor levels or hoisting depth, and micro controller system sends a signal for the band-type brake driving circuit, and the driving band brake apparatus is braked rapidly.
In the time of also can working as count value and be 3499, change a tooth again, micro controller system just sends the shutdown drive signal to motor and band-type brake driving circuit, makes the motor outage and drive band brake apparatus to brake rapidly.But cage still inertia rises, and steel rope 1 continues to move, and counting machine continues counting.When cage arrives at the destination, the number that counting machine adds up with promote number of floor levels or hoisting depth and be converted into the sensing gear 2 cooresponding numbers of teeth and equate and make zero.
When cage descended, the counting machine in the micro controller system carried out the subtraction counting, and cage lands, and counting machine should be 0.In order to eliminate cumulative errors, on the support 4 of elevator, install and can return zero switch, can return zero switch and be connected with the corresponding socket of micro controller system.When cage drops to nadir, the counting machine automatic clear.
Claims (6)
1, a kind of control method of traction-type construction lifting machine automatic leveling is characterized in that the altitude information that earlier the elevator desire is risen or descends is input in the micro controller system, and micro controller system becomes it into the target data values storage; Micro controller system collects the perimeter signal data value of the flower wheel rotation of rotating synchronously with steel rope by position-type sensor then, and perimeter signal data value and target data values compared, to equal a reserved value that approaches target data values anti-when the perimeter signal data value, micro controller system sends drive signal to motor and band brake apparatus driving circuit, make the motor outage and band brake apparatus is braked rapidly, elevator utilizes inertia to be parked in destination layer; At this moment position-type sensor collects the perimeter signal data value that the flower wheel that rotates synchronously with steel rope rotates and equals target data values.
2, control method according to the described a kind of traction-type construction lifting machine automatic leveling of claim 1, it is characterized in that when the perimeter signal data value equals a reserved value that approaches target data values, micro controller system sends drive signal to motor-drive circuit, make the motor outage, elevator utilizes inertia to continue to rise, when micro controller system collects perimeter signal data value that the flower wheel that rotates synchronously with steel rope rotates when equaling target data values by position-type sensor, micro controller system sends a signal for the band-type brake driving circuit, drives the rapid braking of band brake apparatus and makes the elevator destination layer.
3,, it is characterized in that described micro controller system adopts 8301 type micro controller systems according to the control method of claim 1 or 2 described a kind of traction-type construction lifting machine automatic levelings.
4, the employed measurement mechanism of a kind of control method of traction-type construction lifting machine automatic leveling as claimed in claim 1, its feature comprises the position-type sensor that a flower wheel that rotates synchronously with steel rope rotates and is used for the perimeter signal data value of flower wheel rotation, and both are installed on the support of elevator.
5, measurement mechanism according to claim 4 is characterized in that described flower wheel is a sensing gear.
6, according to claim 4 or 5 described measurement mechanisms, it is characterized in that described position-type sensor is a kind of position-type sensor that can be used for measuring the number of teeth that the sensing gear rotates, it can export the square-wave signal of two-way band phase difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045030 CN1718524A (en) | 2004-07-08 | 2004-07-08 | Control method of automatic landing of dragging type construction lifter and measuring device used by said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045030 CN1718524A (en) | 2004-07-08 | 2004-07-08 | Control method of automatic landing of dragging type construction lifter and measuring device used by said method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1718524A true CN1718524A (en) | 2006-01-11 |
Family
ID=35930491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410045030 Pending CN1718524A (en) | 2004-07-08 | 2004-07-08 | Control method of automatic landing of dragging type construction lifter and measuring device used by said method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1718524A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071662A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Remote self-diagnosis method of braking performance of elevator |
| CN105584922A (en) * | 2016-03-28 | 2016-05-18 | 齐思贤 | Box-type lift based on gear-rack transmission |
| CN105621202A (en) * | 2016-03-28 | 2016-06-01 | 齐思贤 | Thread rotation driving-based car-type elevator |
| CN105819308A (en) * | 2015-01-06 | 2016-08-03 | 义乌恒邦建筑智能科技有限公司 | Rack type vertical elevator operation checking-controlling and positioning system |
-
2004
- 2004-07-08 CN CN 200410045030 patent/CN1718524A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071662A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Remote self-diagnosis method of braking performance of elevator |
| CN105819308A (en) * | 2015-01-06 | 2016-08-03 | 义乌恒邦建筑智能科技有限公司 | Rack type vertical elevator operation checking-controlling and positioning system |
| CN105819308B (en) * | 2015-01-06 | 2018-04-13 | 义乌恒邦建筑智能科技有限公司 | A kind of rack type vertical-lifting machine operation prosecution and alignment system |
| CN105584922A (en) * | 2016-03-28 | 2016-05-18 | 齐思贤 | Box-type lift based on gear-rack transmission |
| CN105621202A (en) * | 2016-03-28 | 2016-06-01 | 齐思贤 | Thread rotation driving-based car-type elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1584597A1 (en) | Elevator control system | |
| JP2016537281A (en) | Energy saving traction type elevator and its energy saving method | |
| CN103449271B (en) | DSP (Digital Signal Processor)-based control device of variable-frequency construction lifting device and method for realizing automatic leveling of lifting device by adopting control device | |
| JP2009525239A (en) | Managing encoder malfunctions in elevator drive systems | |
| CN1718524A (en) | Control method of automatic landing of dragging type construction lifter and measuring device used by said method | |
| CN111757842A (en) | Brake performance evaluation device for elevator | |
| JP2010280481A (en) | Control device for elevator | |
| CN110723617A (en) | Elevator overspeed emergency braking protection system | |
| JP2003238051A (en) | Elevator for construction work | |
| CN105016161B (en) | Elevator braking force detection device and method | |
| CN1040327A (en) | Elevator stage and control system thereof | |
| CN215364640U (en) | Electronic anti-collision control system for traveling block of oil drilling machine | |
| CN203387460U (en) | Frequency converter control-based elevating device | |
| CN102459048A (en) | Control device for elevator | |
| CN210505303U (en) | Automatic system of commercial mixing station loading crane | |
| CN113428792A (en) | Electronic anti-collision control system for traveling block of oil drilling rig and control method thereof | |
| CN106672723B (en) | Elevator brake method for detecting operation state and system | |
| KR100365316B1 (en) | brake and traction force detector for elevator | |
| WO2003078291A1 (en) | A gravity elevator | |
| CN112408204A (en) | Intelligent hoisting device with self-locking function after stall | |
| CN110386531A (en) | A kind of anti-falling safety device pre-tightens automatically and resets system | |
| JPH04189281A (en) | Maintenance device for temporary elevator | |
| CN215208124U (en) | Crane braking distance measuring device | |
| JPS60204586A (en) | Lifting gear | |
| CN212621429U (en) | Staircase stopper performance detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |