CN107601244B - The control method of friction type winder variable deceleration point based on variable load - Google Patents
The control method of friction type winder variable deceleration point based on variable load Download PDFInfo
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Abstract
The invention discloses the control methods of the friction type winder variable deceleration point based on variable load, control device includes tension detecting apparatus, encoder, synchronous switch, double wire system programmable controller, by the tension detection data for acquiring two cages of friction type winder, according to the payload of each cage and the load difference of two cages, according to the friction type winder equivalent mass of double wire system programmable controller data cell assignment, COMPREHENSIVE CALCULATING goes out the free deceleration after friction type winder reduce-speed sign issues, under different operating conditions, export different deceleration point signals, realize that deceleration distance is variable with this.The present invention combines free deceleration to be not more than 0.75m/s with what lifts personnel required2Deceleration is not more than 1.2m/s with lifting material requirement2Deceleration standard exports reduce-speed sign and positive and negative braking moment modulated signal to hoist control system, realizes friction type winder the safe and economic operation.
Description
Technical field
The invention belongs to coal mine lifting technical field of electric control, are related to friction type winder in reciprocal operational process up and down
In, technical solution problem of the deceleration point apart from setting method, more particularly to the friction type winder based on variable load can be changed and subtract
The control method of speed point.
Background technique
Domestic and international large and medium-sized coal mine designs major-minor well lifting system, and main shaft hoisting system, which is used to winding shaft, to be produced to come next time
Coal beneficial to mineral products, auxiliary-well takeup be used to go up and down a variety of materials that underground coal mine uses, tool, equipment, spoil and
Operating personnel etc..Since friction type winder has too small friction roll, boom hoist cable diameter, compact complete equipment etc.
Advantage and be widely applied in mine hoisting, become the main lift machine of coal master's auxiliary-well takeup first choice, at present
The large and medium-sized coal master's auxiliary-well takeup majority in China selects friction type winder.
Friction type winder belongs to typical potential energy rotating machinery, and friction type winder is assembled on its friction roll and rubbed
Liner is wiped, is taken on friction lining and covers boom hoist cable, the both ends of boom hoist cable are separately connected hoisting container, frictional in main shaft
In elevator, hoisting container is also referred to as skip bucket, and in auxiliary shaft friction type winder, hoisting container is also referred to as cage.Friction roll
Rotation, transmits power by the frictional force between friction lining and boom hoist cable, drives two hoisting containers in the wellbore
Run repeatedly up and down, workflow be exactly accelerate, constant speed runs, slows down, creeps, stops in place, then above and below reciprocating
Operation.To guarantee certain operational efficiency and safety, friction type winder usually requires setting deceleration point, i.e. hoisting container is transported
After row to certain stroke, friction type winder issues reduce-speed sign, the friction type winder speed of service is controlled, using just
The mode of power, negative force or art skating, the final speed stablized in a 0.5m/s or so, Brake stop, completes one in place
Promote cyclic process.
Currently, friction type winder is in deceleration point distance setting, the principle being usually arranged according to fixed range is promoted
When container goes upward to parking terminal certain distance, friction type winder issues reduce-speed sign, then slows down, creeps to terminal and stop
Vehicle.Friction type winder deceleration point tradition setting distance is fixed and invariable, and is a fixed range, usually in pit shaft or depth
It spends and switch is set on indicator, acted by mechanical collision or electromagnetic induction and trigger reduce-speed sign, not because of the change of increasing productivity
Change and changes.The deceleration point signal of fixed range is set, and main cause is that China's elevator electric control is originally designed for TKD, JKMK
Two kinds of forms, both forms are early production, have contact analogue relay control system because of it, are realizing that deceleration point can
It is difficult in change.Although later period China's hoist control system uses contactless digital computer control system, its
Only early stage is replaced to have contact with computer program in logic control relation
Analogue relay electric-control system does not have any variation on control strategy.Main shaft friction type winder is mainly used to
Winding shaft produces the coal come beneficial to mineral products next time, and skip bucket uses definite weight mode, and friction roll two sides tension difference value is constant,
Increasing productivity single property is suitable for set a distance and designs in deceleration point setting.
Auxiliary shaft friction type winder is mainly used to be repeatedly lifted up and transfer a variety of materials, tool, equipment, cash that underground uses
Stone and operating personnel etc., cage cannot achieve definite weight, can only manually adjust cage load tension difference no more than fair
Perhaps tension difference value, increasing productivity change of properties are big.If friction type winder deceleration point, friction type winder is arranged in fixed range
It is promoted when overloaded, because deceleration is larger, it may occur that distance of creeping increases phenomenon, and friction type winder performance driving economy is poor, simultaneously
Also occur that abseiling phenomenon；Friction type winder is promoted at light load, because deceleration is smaller, it may occur that and distance of creeping reduces phenomenon,
Friction type winder safety in operation is poor.Therefore, be guarantee auxiliary shaft friction type winder operation safety and economic benefit, deceleration point away from
From in setting, it should be arranged according to friction type winder increasing productivity size, deceleration point distance signal has changeability.
Summary of the invention
The present invention is to solve deficiency existing for the deceleration point signal of above-described friction type winder setting fixed range,
Under the precondition for meeting the safe operation of auxiliary shaft friction type winder, variable subtract is set using following increasing productivity to change
Speed point distance technique scheme, further promotes the economy of auxiliary shaft friction type winder operation.
Purpose to illustrate the invention, the present invention define two concepts, and friction type winder promotes heavy duty: promoting heavy duty and refer to
After a promotion cyclic process, the load difference position of two cages can increase friction type winder；Under friction type winder
Put heavy duty: decentralization heavy duty refer to friction type winder after a promotion cyclic process, the load difference position energy of two cages
It reduces.
To achieve the above object the invention adopts the following technical scheme: the friction type winder based on variable load is variable subtracts
The control method of speed point, control device include tension detecting apparatus, encoder, synchronous switch, double wire system programmable controller, are led to
The tension detection data for crossing acquisition two cages of friction type winder, according to the payload of each cage and two cages
Load difference, according to the friction type winder equivalent mass of double wire system programmable controller data cell assignment, COMPREHENSIVE CALCULATING goes out
Free deceleration after friction type winder reduce-speed sign issues exports different deceleration point signals under different operating conditions,
Realize that deceleration distance is variable with this.
As a further solution of the present invention, when receiving lifts personnel's signal, when free deceleration is greater than 0.75m/s2
When, with 0.75m/s2Deceleration conversion deceleration point distance signal, double wire system programmable controller are exported to hoist control system
After deceleration point signal, modulation positive force torque signals are simultaneously emitted by, make friction type winder with 0.75m/s2Deceleration runs slowly；
When free deceleration is less than or equal to 0.75m/s2When, with free deceleration conversion deceleration point distance signal, double wire system programmable control
After device processed exports deceleration point signal to hoist control system, friction type winder is run slowly with free deceleration.
As a further solution of the present invention, when receiving lifting material signal, when free deceleration is greater than 1.2m/s2
When, with 1.2m/s2Deceleration conversion deceleration point distance signal, double wire system programmable controller subtract to hoist control system output
After speed point signal, modulation positive force torque signals are simultaneously emitted by, make friction type winder with 1.2m/s2Deceleration runs slowly；When
Free deceleration is less than or equal to 1.2m/s2When, with free deceleration conversion deceleration point distance signal, double wire system programmable controller
After exporting deceleration point signal to hoist control system, friction type winder is run slowly with free deceleration.
As a further solution of the present invention, when receiving lifts personnel's signal, with 0.75m/s2Deceleration conversion is slowed down
Point distance signal after double wire system programmable controller exports deceleration point signal to hoist control system, is simultaneously emitted by increase and adjusts
Negative force torque signals processed, make friction type winder with 0.75m/s2Deceleration runs slowly.
As a further solution of the present invention, when receiving lifting material signal, with 1.2m/s2Deceleration conversion deceleration point
Distance signal after double wire system programmable controller exports deceleration point signal to hoist control system, is simultaneously emitted by increase modulation
Negative force torque signals, make friction type winder with 1.2m/s2Deceleration runs slowly.
As a further solution of the present invention, double wire system programmable controller is initialized first after powering on, then into
Row data scan cycle operation, calculates the load data of two cages received, while calculating the negative of two cages
Lotus difference, once starting signal is received, load number of the double wire system programmable controller two cages received at this time
According to as final data.After double wire system programmable controller receives starting signal, carry out judging promotion signal classification first.Such as
Fruit is lifts personnel's signal, and double wire system programmable controller judges whether according to the load difference and direction of improvement of two cages
To promote heavy duty, if it is heavy duty is promoted, free deceleration is calculated, if free deceleration is greater than 0.75m/s2, double wire system
Programmable controller calculates deceleration distance according to speed, realizes that positive force is slowed down, if free deceleration is less than or equal to 0.75m/
s2, double wire system programmable controller calculates deceleration distance according to speed, realizes and freely slow down, if it is decentralization heavy duty, two-wire
Programmable controller processed calculates deceleration distance according to speed, and adjustment negative force braking moment presses 0.75m/s2Slow down；If not
Lifts personnel's signal, double wire system programmable controller judge whether it is and mention according to the load difference and direction of improvement of two cages
Heavy duty is risen, if it is heavy duty is promoted, calculates free deceleration, if free deceleration is greater than 1.2m/s2, double wire system is programmable
Controller calculates deceleration distance according to speed, realizes that positive force is slowed down, if free deceleration is less than or equal to 1.2m/s2, two-wire
Programmable controller processed calculates deceleration distance according to speed, and realization is freely slowed down, and if it is decentralization heavy duty, double wire system is programmable
Controller calculates deceleration distance according to speed, and adjustment negative force braking moment presses 1.2m/s2Slow down.
The beneficial effects of the present invention are: the present invention is special for coal mine auxiliary shaft friction type winder potential energy rotating machinery
Point calculates the payload and two of each cage by acquiring the tension detection data of two cages of friction type winder
The load difference of a cage devises the friction hoisting based on variable load according to friction type winder system equivalent mass
Machine variable deceleration point control program.COMPREHENSIVE CALCULATING goes out the free deceleration after friction type winder slows down, in conjunction with free deceleration
It is not more than 0.75m/s with what lifts personnel required2Deceleration is not more than 1.2m/s with lifting material requirement2Deceleration standard, with
Different deceleration point distances is set with the load size of the difference of two cages, to hoist control system output reduce-speed sign and just
Negative braking moment modulated signal realizes friction type winder the safe and economic operation.
Detailed description of the invention
Fig. 1 is friction type winder lifting system figure of the present invention；
Fig. 2 friction type winder promotes speed, time, trip map；
Fig. 3 friction type winder variable deceleration point functional block diagram；
Fig. 4 friction type winder variable deceleration point control flow chart；
In figure: 1, friction roll；2, brake disc；3, disc type brake；4, directive wheel；5, boom hoist cable；6 be balance steel
Cord；7, pit shaft；8, ground well head；9, underground well head；10, cage A:11, cage B；12, encoder A;13, encoder B；14
Tension detecting apparatus A；15, tension detecting apparatus B；16, synchronous switch A；17, synchronous switch B；18, promotion signal；19, it is promoted
Electrical Control system；20, double wire system programmable controller.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
In Fig. 1, friction roll 1 is linked together with friction type winder main shaft, synchronous rotary, and periphery fixation has
The friction lining of certain coefficient of friction is taken on friction lining and covers boom hoist cable 5,5 both ends of boom hoist cable connect cage A10,
Cage B11, friction roll 1 rotate, and drive by the frictional force between the friction lining on boom hoist cable 5 and friction roll 1
Cage A10, cage B11 are up and down reciprocatingly run；Brake disc 2 is a ring steel plate, is fixed on friction roll 1, by disc type brake
Lock 3 applies pressure, generates braking moment；Disc type brake 3 applies normal pressure to brake disc 2 by precompressed butterfly spring,
Frictional force is generated, braking moment is formed；Directive wheel 4 is generally used to adjustment boom hoist cable 5 and friction roll 1 encloses cornerite, together
When adjust spacing of the boom hoist cable 5 in pit shaft 7；Boom hoist cable 5 is the flexible cable body of frictional drive, dependence and friction roll
The frictional force between friction lining on 1 drives cage A10, cage B11 up and down reciprocatingly to run；Balance rope 6 is used to balance
Boom hoist cable 5 is in the weight difference of 1 two sides of friction roll, and guarantee elevator is in any raised position, 1 two sides of friction roll
Boom hoist cable and balance steel wire rope tension difference be substantially at steady state value；Pit shaft 7 is connect ground and underground coal mine logical
Road, the space up and down reciprocatingly run as cage A10, cage B11；Ground well head 8 is the space that ground contacts pit shaft 7, with
7 junction of pit shaft is equipped with the ancillary equipments facility such as track, car puller, is used to be packed into or release into cage A10, cage B11
Vehicle material etc.；Underground well head 9 is the space that underworkings contacts pit shaft 7, is equipped with track, car puller with 7 junction of pit shaft
Etc. ancillary equipments facility, be used to that vehicle material etc. is packed into or released into cage A10, cage B11；Cage A10, cage B11 are
Two hoisting containers of friction type winder, for going up and down the materials such as material, accessory used in coal production, equipment and people
Member.
In Fig. 1, friction type winder power resources are mainly motor, and motor and friction roll 1 are direct-connected or electronic
Machine utilizes the friction lining and boom hoist cable 5 on friction roll 1 by speed reducer output shaft and the connection rotation of friction roll 1
Between the frictional force that generates drive cage A10, cage B11 up and down reciprocatingly to run, cage A10, cage B11 be used as have it is certain empty
Between hoisting container, materials and the personnel such as material, accessory, equipment used in coal production are gone up and down, due to cage A10, cage
B11 load difference is inconsistent, therefore will appear promotion heavy duty and decentralization heavy duty two in auxiliary shaft friction type winder operational process
Kind operating condition.
In Fig. 2, coordinate curve show friction type winder six-stage operation speed, time, trip map, vertical coordinate
Line represents friction type winder speed, is indicated with English alphabet V, v；Horizontal coordinate line represents elevator runing time, stroke, uses
English alphabet T, t and H, h are indicated.Wherein, v0Representing friction type winder initial velocity is 0, v1Friction type winder is represented just to add
Speed after speed, v2Represent speed after friction hoisting owner accelerates, i.e., maximum rated speed, constant speed speed, v3Representative frictionally mentions
Speed, i.e. creep speed after the machine of liter slows down；t0Represent initial time before friction type winder is run, t1Represent friction type winder
Moment after just accelerating, i.e., main acceleration start time, t2Moment is represented after friction hoisting owner accelerates, i.e., when the constant speed stage starts
It carves, t3The moment after friction type winder constant speed is represented, that is, is reduced speed now the moment, t4Moment is represented after friction type winder slows down, i.e.,
Start creep speed moment, t5It represents friction type winder to creep finish time, that is, starts stopping brake moment, t6It is frictional
Moment after elevator stopping brake, friction type winder promote operation cycle time T=t0+t1+t2+t3+t4+t5+t6；h1To rub
The first accelerating travel of erasing elevator, h2For friction hoisting owner's accelerating travel, h3For friction type winder constant speed stroke, h4For
Friction type winder retarding travel, h5It creeps stroke for friction type winder, h6For friction type winder parking brake stroke, rub
Erasing elevator total kilometres (i.e. hoisting depth) H=h1+ h2+ h3+ h4+ h5+ h6。
In Fig. 2, friction type winder acceleration, deceleration, normal speed numerical value are bigger, and friction hoisting engine efficiency is got over
Height, economic performance are better, but acceleration, deceleration, normal speed numerical value are bigger, and friction type winder just will appear abseiling, system
Not equal enough the accident potential of kinetic moment.Therefore friction type winder acceleration-deceleration, maximum constant speed speed will design reasonable at one
In section." safety regulations in coal mine " is proposed and has to friction type winder acceleration, deceleration, maximum rated speed
It asks, the friction type winder acceleration of lifts personnel, deceleration≤0.75m/s2, maximum rated speed≤0.5(H is to mention
Rise), and it is no more than 12 m/s, go up and down maximum rated speed≤0.6 of friction type winder of material." coal mine ground is more
Rope friction type lifting system design specification " it requires to go up and down friction type winder elevator acceleration, the deceleration≤1.2m/ of material
s2.Therefore, for auxiliary shaft friction type winder, maximum rated speed can only be gone up and down according to the speed designs of lifts personnel
Personnel's brief acceleration, deceleration want≤0.75m/s2, lifting material brief acceleration, deceleration can be increased to 1.2m/s2.Friction
Formula elevator is creeped stroke h5For fixed journey system numerical value, principal security cage 10A, cage B11 pass through ground well head 8, underground well
Pass through at a slow speed when 9 location assistance facility of mouth, braking distance h6 is a substantially stationary numerical value, predominantly friction type winder parking row
Journey, generally in 100mm or so, deceleration point distance definition is S, then deceleration point distance S=h4+h5+h6。
In Fig. 3, encoder A12 is two-phase photoelectric encoder and friction roll 1 is coaxially connected, synchronous rotary, difference rotation
Turn the two-phase pulse digital signal that direction exports different phase sequences, according to the number of pulses received in the unit time, conversion is frictional
Elevator real time execution speed, while cumulative according to two-phase pulse direction and number of pulses, moreover it is possible to synchronize to converse and frictionally mention
Rise machine direction of improvement and stroke；Encoder B13 is two-phase photoelectric encoder and directive wheel 4 is coaxially connected, synchronous rotary, different
Direction of rotation exports the two-phase pulse digital signal of different phase sequences, according to the number of pulses received in the unit time, conversion friction
Formula elevator real time execution speed, at the same it is cumulative according to two-phase pulse direction and number of pulses, moreover it is possible to it synchronizes and converses frictionally
Elevator direction of improvement and stroke；Tension detecting apparatus A14 mainly has pressure sensor, variable connector, single-chip microcontroller, wireless transmission
The composition such as device, wireless receiver, data processor, pressure sensor are mounted between cage A10 and boom hoist cable 5, in real time
Acquire the rope end load of boom hoist cable 5；Tension detecting apparatus B15 mainly has pressure sensor, variable connector, single-chip microcontroller, nothing
The composition such as line transmitter, wireless receiver, data processor, pressure sensor be mounted on cage B11 and boom hoist cable 5 it
Between, the other end rope end load of boom hoist cable 5 is acquired in real time；Synchronous switch 16 is mounted in pit shaft 7, is protected with ground well head 8
Certain distance is held, the operation physical location of cage A10 is detected, for correcting friction type winder lift stroke, corrects encoder
The kinematic error of A12, encoder B13；Synchronous switch 17 is mounted in pit shaft 7, keeps certain distance, detection with ground well head 8
The operation physical location of cage B11, for correcting friction type winder lift stroke, amendment encoder A12, encoder B13
Kinematic error；The operating room at underground well head 9 and ground well head 8 issues promotion signal 18 respectively, for issuing lifts personnel
Or material signal classification, promotion signal points number represent different hoisting way；Hoist control system 19 is frictional
There are power of alterating and direct current, variable-frequency power sources, relay, contactor, sensing protection device etc. in the electric control and protection part of elevator
Electric component composition completes the electrical dragging and braking action of friction type winder；Double wire system programmable controller 20 mainly has
The S7-300 programmable controller composition of two mutual backup, mutual redundancy, data acquisition, free deceleration, deceleration point
The functions such as distance are calculating control core of the invention.
In Fig. 3, encoder A12, encoder B13 two-phase pulse signal exported respectively to double wire system programmable controller 20
Two programmable controllers, complete friction type winder lift stroke, direction, speed analytical calculation, accidental conditions
Under, friction roll 1 is consistent with the linear velocity of directive wheel 4, and 2 sets of promotion data that double wire system programmable controller 20 is formed are led in real time
News comparison, when two sets of data are completely the same, data are valid.Other data input to double wire system programmable controller 20 simultaneously
Two programmable controllers.Tension detecting apparatus A14, tension detecting apparatus B15 be respectively completed cage A10, cage B11 it is negative
Lotus detection, detection technique have national patent " detection device for steel wire rope tension of friction type hoister " (patent No.:
ZL201220665377.5) open.
In Fig. 3, double wire system programmable controller 20 is calculated separately out by the data of acquisition tension detecting apparatus 14,15
The load difference of cage 10A, cage B11 payload and cage 10A, cage B11, friction type winder equivalent mass (packet
Include cage 10A, cage B11 mass, do not include cage 10A, cage B11 load mass) be defined as M, for can not variable, when programming
To 20 data cell assignment of double wire system programmable controller, cage 10A, cage B11 load equivalent mass are respectively m1、m2, friction
After formula elevator issues promotion signal 18, double wire system programmable controller 20 calculates friction type winder by formula and freely slows down
Degree, free deceleration are defined as a, a=1.15*(m1-m2) * g/(M+m1+m2), wherein g is acceleration of gravity.It is calculated by formula
The free retarding travel of friction type winder, h4=(–) * (M+m1+m2)/2*1.15*(m1-m2) * g, then deceleration point distance S=
h4+h5+h6.It is not more than 0.75m/s according to lifts personnel's acceleration-deceleration that " safety regulations in coal mine " requires2" coal mine ground is restricted more
Friction hoisting systematic design discipline " require improving material acceleration-deceleration be not more than 1.2m/s2Standard, double wire system programmable control
Device 20 processed exports modulated signal to hoist control system 19, generates certain positive negative moment, realizes friction type winder safety
Economical operation.
In Fig. 3, double wire system programmable controller 20 promotes heavy duty to friction type winder, decentralization severe duty divides
Analysis, according to cage 10A, the payload of cage B11 and load difference, in conjunction with the points of promotion signal 18, judgement is frictionally mentioned
The machine of liter is in promotion heavy service mode and still transfers heavily loaded mode.Friction type winder is promoted when overloaded, and double wire system is programmable
Controller 20 calculates deceleration point distance S, when promoted heavy duty cage A10 or cage B11 with parking position distance be S when,
After issuing reduce-speed sign to hoist control system 19, friction type winder freely slows down or by variable-frequency power generation or dynamic braking
Mode realizes deceleration；Friction type winder is transferred when overloaded, and double wire system programmable controller 20 calculates deceleration point, heavy when being promoted
The cage A10 or cage B11 of load issue adjustment variable-frequency power generation when with a distance from parking position being S, to hoist control system 19
Or dynamic braking torque signal, realize that increasing braking moment slows down.
In Fig. 3, double wire system programmable controller 20 promotes heavy duty to friction type winder, decentralization severe duty divides
Analysis, according to cage 10A, the payload of cage B11 and load difference, in conjunction with the points of promotion signal 18, in different operation feelings
Under condition, different reduce-speed signs is exported.When receiving lifts personnel's signal, double wire system programmable controller 20 is to elevator electric control
System 19 exports reduce-speed sign, is simultaneously emitted by modulating brake torque signals, makes friction type winder with 0.75m/s2Deceleration subtracts
Speed；When receiving lifting material signal, double wire system programmable controller 20 exports reduce-speed sign to hoist control system 19, together
When issue modulating brake torque signals, make friction type winder with 1.2m/s2Deceleration is slowed down.
In Fig. 3, double wire system programmable controller 20 promotes heavy duty to friction type winder, decentralization severe duty divides
Analysis, according to cage 10A, the payload of cage B11 and load difference, when receiving lifting material signal, double wire system is programmable
Controller 20 is according to the given speed of decentralization heavy duty and with 1.2m/s2Deceleration, inverse go out deceleration point signal, once arrive deceleration
Position, double wire system programmable controller 20 export modulating brake torque signals to hoist control system 19, increase braking moment,
Make friction type winder with 1.2m/s2Deceleration is slowed down.
In Fig. 4, double wire system programmable controller 20 is initialized first after powering on, and then carries out data scanning circulation
Operation calculates the load data of the cage 10A, cage B11 that receive, at the same calculate cage 10A, cage B11 it is negative
Lotus difference, once starting signal is received, double wire system programmable controller 20 cage 10A, cage B11 received at this time
Load data as final data.After double wire system programmable controller 20 receives starting signal, judgement promotion is carried out first
Signal classification.If it is lifts personnel's signal, double wire system programmable controller 20 is according to the load difference of cage 10A, cage B11
And direction of improvement, judge whether it is promotion heavy duty, if it is heavy duty is promoted, free deceleration is calculated, if free deceleration
Greater than 0.75m/s2, double wire system programmable controller 20 calculates deceleration distance S according to speed, realizes that positive force is slowed down, if certainly
0.75m/s is less than or equal to by deceleration2, double wire system programmable controller 20 calculates deceleration distance S according to speed, realizes freely
Slow down, if it is decentralization heavy duty, double wire system programmable controller 20 calculates deceleration distance S, adjustment negative force braking according to speed
Torque presses 0.75m/s2Slow down；If not lifts personnel's signal, double wire system programmable controller 20 is according to cage 10A, cage
The load difference and direction of improvement of B11 judges whether it is promotion heavy duty, if it is heavy duty is promoted, calculates free deceleration, such as
The free deceleration of fruit is greater than 1.2m/s2, double wire system programmable controller 20 calculates deceleration distance S according to speed, realizes positive force
Slow down, if free deceleration is less than or equal to 1.2m/s2, double wire system programmable controller 20 calculates deceleration distance according to speed
S, realization are freely slowed down, and if it is decentralization heavy duty, double wire system programmable controller 20 calculates deceleration distance S according to speed, are adjusted
Whole negative force braking moment presses 1.2m/s2Slow down.
The above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention
Introduction, in the case where not departing from the principle of the present invention and spirit, changes, modifications, replacement and change that embodiment is carried out
Type is still fallen within protection scope of the present invention.
Claims (6)
1. the control method of the friction type winder variable deceleration point based on variable load, which is characterized in that control device includes
Tension detecting apparatus, encoder, synchronous switch, double wire system programmable controller, by acquiring two cages of friction type winder
Tension detection data, tension detection data refers to the load value of two cages, according to the payload of each cage and two
The load difference of cage, it is comprehensive according to the friction type winder equivalent mass of double wire system programmable controller data cell assignment
It calculates the free deceleration after friction type winder reduce-speed sign issues and exports different decelerations under different operating conditions
Point signal realizes that deceleration distance is variable with this.
2. the control method of the friction type winder variable deceleration point according to claim 1 based on variable load, special
Sign is, when receiving lifts personnel's signal, when free deceleration is greater than 0.75m/s2When, with 0.75m/s2Deceleration conversion subtracts
Speed point distance signal is simultaneously emitted by modulation after double wire system programmable controller exports deceleration point signal to hoist control system
Positive force torque signals, make friction type winder with 0.75m/s2Deceleration runs slowly；When free deceleration is less than or equal to
0.75m/s2When, it is converted deceleration point distance signal with free deceleration, double wire system programmable controller is to hoist control system
After exporting deceleration point signal, friction type winder is run slowly with free deceleration.
3. the control method of the friction type winder variable deceleration point according to claim 1 based on variable load, special
Sign is, when receiving lifting material signal, when free deceleration is greater than 1.2m/s2When, with 1.2m/s2Deceleration conversion is slowed down
Point distance signal after double wire system programmable controller exports deceleration point signal to hoist control system, is being simultaneously emitted by modulation just
Power torque signals, make friction type winder with 1.2m/s2Deceleration runs slowly；When free deceleration is less than or equal to 1.2m/s2
When, with free deceleration conversion deceleration point distance signal, double wire system programmable controller is exported to hoist control system to slow down
After point signal, friction type winder is run slowly with free deceleration.
4. the control method of the friction type winder variable deceleration point according to claim 1 based on variable load, special
Sign is, when receiving lifts personnel's signal, with 0.75m/s2Deceleration conversion deceleration point distance signal, double wire system programmable control
After device processed exports deceleration point signal to hoist control system, increase modulation negative force torque signals are simultaneously emitted by, make frictionally to mention
The machine of liter is with 0.75m/s2Deceleration runs slowly.
5. the control method of the friction type winder variable deceleration point according to claim 1 based on variable load, special
Sign is, when receiving lifting material signal, with 1.2m/s2Deceleration conversion deceleration point distance signal, double wire system programmable control
After device processed exports deceleration point signal to hoist control system, increase modulation negative force torque signals are simultaneously emitted by, make frictionally to mention
The machine of liter is with 1.2m/s2Deceleration runs slowly.
6. the control method of the friction type winder variable deceleration point according to claim 1 based on variable load, special
Sign is that double wire system programmable controller is initialized first after powering on, and data scanning loop computation is then carried out, to reception
To the load datas of two cages calculated, while calculating the load difference of two cages, once receive starting signal,
Double wire system programmable controller is using the load data of two cages received as final data, double wire system programmable control at this time
It after device processed receives starting signal, carries out judging promotion signal classification first, if it is lifts personnel's signal, double wire system is programmable
Controller judges whether it is promotion heavy duty according to the load difference and direction of improvement of two cages, promotes heavy duty and refers to frictionally
After a promotion cyclic process, the load difference position of two cages can increase elevator；If it is heavy duty is promoted, calculate
Free deceleration, if free deceleration is greater than 0.75m/s2, double wire system programmable controller according to speed calculate deceleration away from
From realization positive force is slowed down, if free deceleration is less than or equal to 0.75m/s2, double wire system programmable controller calculates according to speed
Deceleration distance out, realization are freely slowed down, and if it is decentralization heavy duty, decentralization heavy duty refers to that friction type winder is followed by a promotion
After ring process, the load difference position of two cages can be reduced, and double wire system programmable controller calculates deceleration distance according to speed,
It adjusts negative force braking moment and presses 0.75m/s2Slow down；If not lifts personnel's signal, double wire system programmable controller is according to two
The load difference and direction of improvement of a cage judge whether it is promotion heavy duty, if it is heavy duty is promoted, calculate free deceleration
Degree, if free deceleration is greater than 1.2m/s2, double wire system programmable controller calculates deceleration distance according to speed, realizes just
Power is slowed down, if free deceleration is less than or equal to 1.2m/s2, double wire system programmable controller according to speed calculate deceleration away from
From realization is freely slowed down, and if it is decentralization heavy duty, double wire system programmable controller calculates deceleration distance according to speed, is adjusted
Negative force braking moment presses 1.2m/s2Slow down.
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| CN110803592B (en) * | 2019-11-22 | 2022-02-18 | 上海辛格林纳新时达电机有限公司 | Elevator control method, device and computer readable storage medium |
| FI3922812T3 (en) * | 2020-06-10 | 2024-02-19 | Abb Schweiz Ag | Method of operating a mining hoist |
| CN113602944B (en) * | 2021-06-30 | 2023-06-30 | 洛阳智超机电科技有限公司 | Positive and negative force detection and safety braking control method for single-rope lifter system |
| CN113247731B (en) * | 2021-06-30 | 2023-04-07 | 洛阳智超机电科技有限公司 | Multi-rope hoister system load detection and safety brake control method |
| CN113716435B (en) * | 2021-09-02 | 2023-05-05 | 郑州捷安高科股份有限公司 | Mine well-in and well-out simulation control method, device, equipment and storage medium |
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