CN106348117A - Calculation method and device of elevator equilibrium coefficient - Google Patents

Calculation method and device of elevator equilibrium coefficient Download PDF

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Publication number
CN106348117A
CN106348117A CN201611025891.1A CN201611025891A CN106348117A CN 106348117 A CN106348117 A CN 106348117A CN 201611025891 A CN201611025891 A CN 201611025891A CN 106348117 A CN106348117 A CN 106348117A
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China
Prior art keywords
car
elevator
output torque
motor
state
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Pending
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CN201611025891.1A
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Chinese (zh)
Inventor
刘真
黄立明
秦鹏
荣洪凯
袁俊波
仲兆峰
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Guangzhou Ropente Technology Development Co Ltd
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Guangzhou Ropente Technology Development Co Ltd
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Priority to CN201611025891.1A priority Critical patent/CN106348117A/en
Publication of CN106348117A publication Critical patent/CN106348117A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0037Performance analysers

Abstract

The embodiment of the invention discloses a calculation method and device of the elevator equilibrium coefficient. The method comprises the steps that a car provided with the counter weight is controlled to be in a car slipping state; the output torque of an elevator motor is controlled to enable the car to be in a balanced state; when the car is in the balanced state, the elevator equilibrium coefficient is calculated according to the output torque of the motor. According to the calculation method and device of the elevator equilibrium coefficient, the problems that for an existing method for calculating the elevator equilibrium coefficient, the time spent on current load curve drawing is long, and the labor intensity is high are solved, and the effect of conveniently and rapidly obtaining the elevator equilibrium coefficient through calculation by means of the output torque of the motor when the car is in the balanced state is achieved.

Description

A kind of computational methods of balance coefficient of elevator and device
Technical field
The present embodiments relate to control technology, more particularly, to a kind of computational methods of balance coefficient of elevator and device.
Background technology
Coefficient of balance is the important performance indexes that traction-type drives elevator, its essence is the quality size of design counterweight, reason Think that running status is that the quality of counterweight is exactly equal to the quality plus load in sedan-chair for the car deadweight.But fixing counterweight can not be put down Weighing apparatus load therefore can only select a suitable coefficient of balance by unloaded to the change being fully loaded with, and the state that elevator is run multiple times is from total Closest to preferable poised state on body.
Test method specified in test elevator surveillance inspection procedure has: passes through current measurement for ac motor and ties Sum velocity measures, and does electric current one curve of load or the speed curve of load, determines coefficient of balance with upper and lower operation curve intersection point.Right Pass through current measurement in dc motor and combine voltage measurement, do electric current one curve of load or voltage one curve of load, determine Coefficient of balance.At present elevator install in supervision and inspection using most be to do electric current one curve of load to determine coefficient of balance.Should Method requires car to carry 0,25%, 50%, 75%, 100% rated load respectively, carries out running along whole straight.Remember respectively Record car up-downgoing, to current value during same level, is then done electric current one curve of load and is determined coefficient of balance.
The method has the disadvantage that the consuming time is long, and an elevator photo-equilibrium ratio test will 1~2h;Work is strong Degree is big, repeatedly will move counterweight in test;Error component is many, due to when doing electric current one curve of load, the measured value of electric current Many, each measured value can have error;Also error is had during the coordinate that measurement point is determined on chart;In addition described point, make curve When due to the line style retouched different with smooth degree, will also result in error;Curve chart drafting is complicated, time-consuming, and protocol requires to exist Inspection scene completes, and such a whole morning at most can only check one, and this is inharmonic with the rapid growth of elevator quantity.
Content of the invention
The present invention provides a kind of computational methods of balance coefficient of elevator and device, to realize conveniently getting elevator Coefficient of balance technique effect.
In a first aspect, embodiments providing a kind of computational methods of balance coefficient of elevator, the method includes:
The car being provided with counterweight is controlled to enter car rolling state;
Control the output torque of elevator motor, so that car enters poised state;
When car enters poised state, the output torque according to described motor calculates balance coefficient of elevator.
Further, before the car that described control is provided with counterweight enters car rolling state, also include:
Arranging described car is zero load, and described car is called intermediate floor.
Further, described control is provided with the car entrance car rolling state of counterweight, comprising:
When the band-type brake monitoring described car is opened, determine that car enters car rolling state.
Further, the described output torque controlling elevator motor, so that car enters poised state, comprising:
Open the car slipping pulse of rear traction sheave according to band-type brake, control compensated to the output torque of described elevator motor, So that described car is out of service, hence into poised state.
Further, during the described entrance poised state when car, the output torque according to described motor calculates elevator balanced Coefficient, comprising:
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, t is motor power output in the state of the equilibrium Square, r is traction sheave radius, and n is baudrier, and g is acceleration of gravity.
Further, after the output torque according to described motor calculates balance coefficient of elevator, also include:
According to the torque difference of elevator static friction torque and/or cage side steel wire rope and counterweight-side steel wire rope, to elevator balanced Coefficient is corrected.
Second aspect, the embodiment of the present invention additionally provides a kind of computing device of balance coefficient of elevator, and this device includes:
Car control module, for controlling the car being provided with counterweight to enter car rolling state;
Motor control module, for controlling the output torque of elevator motor, so that car enters poised state;
Coefficients calculation block, for when car enters poised state, the output torque according to described motor calculates elevator Coefficient of balance.
Further, this device also includes: car setup module, is used for:
Before the car that described control is provided with counterweight enters car rolling state, arranging described car is zero load, will be described Car calls intermediate floor.
Further, described car control module specifically for:
When the band-type brake monitoring described car is opened, determine that car enters car rolling state.
Further, described motor control module specifically for:
Open the car slipping pulse of rear traction sheave according to band-type brake, control compensated to the output torque of described elevator motor, So that described car is out of service, hence into poised state.
Further, described coefficients calculation block specifically for:
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, t is motor power output in the state of the equilibrium Square, r is traction sheave radius, and n is baudrier, and g is acceleration of gravity.
Further, this device also includes: coefficient correction module, is used for:
After the output torque according to described motor calculates balance coefficient of elevator, according to elevator static friction torque and/or Cage side steel wire rope and the torque difference of counterweight-side steel wire rope, are corrected to balance coefficient of elevator.
The embodiment of the present invention is by when car enters car rolling state, controlling the output torque of elevator motor so that car is entered Enter poised state, then the output torque according to motor calculates the coefficient of balance of elevator, solve existing calculating elevator balanced The method drafting current load curve consuming time of coefficient is long, and the problem of high labor intensive is it is achieved that utilize car in equilibrium-like The output torque of motor during state is conveniently calculated the effect of balance coefficient of elevator.
Brief description
Fig. 1 is a kind of schematic flow sheet of the computational methods of balance coefficient of elevator that the embodiment of the present invention one provides;
Fig. 2 be the embodiment of the present invention one provide elevator no weigh start backoff algorithm schematic flow sheet;
Fig. 3 is a kind of schematic flow sheet of the computational methods of balance coefficient of elevator that the embodiment of the present invention two provides;
Fig. 4 is a kind of structural representation of the computing device of balance coefficient of elevator that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just Part related to the present invention rather than entire infrastructure is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of schematic flow sheet of the computational methods of balance coefficient of elevator that the embodiment of the present invention one provides.This Bright embodiment is applied to the situation calculating balance coefficient of elevator.The method can be by elevator balanced system provided in an embodiment of the present invention The computing device of number executing, can be realized in the way of using software and/or hardware, and is typically configurable on elevator system by this device In system.The method specifically includes and operates as follows:
The car that s110, control are provided with counterweight enters car rolling state.
To focusing on the effect playing balance car weight in towed elevator system, therefore, car needs to be provided with counterweight.When When elevator drive system is opened for zero-sum band-type brake to the active force of car, car and counterweight are not integrally acted on by external force, only certainly The effect of heavy sensation of the body power, i.e. car entrance car rolling state.Under this state, the weight difference of counterweight and car makes car start car slipping.
S120, the output torque of control elevator motor, so that car enters poised state.
The nothing of elevator weighs start-up mode when being set to effective, elevator drive system elevator motor is applied compensating torque with Control the output torque of elevator motor, stop the car slipping of car, finally make car enter poised state.The nothing of elevator is weighed and is opened Dynamic backoff algorithm as shown in Fig. 2 the difference of the car car slipping distance being collected by desired value and encoder obtains e (s), through than Example integrator obtains controlled quentity controlled variable, and controlled quentity controlled variable is compensating torque, and the differential transmission of compensating torque and unbalanced moments, to motor, controls The output torque of motor, motor is connected with encoder, the car slipping distance of encoder Real-time Collection car.
S130, when car enters poised state, balance coefficient of elevator is calculated according to the output torque of described motor.
When car enters poised state, car stress balance, i.e. the weight difference of the output torque of motor and car and counterweight Balance, the mechanistic model in conjunction with elevator can calculate balance coefficient of elevator.
The embodiment of the present invention is by when car enters car rolling state, controlling the output torque of elevator motor so that car is entered Enter poised state, then the output torque according to motor calculates the coefficient of balance of elevator it is achieved that conveniently calculating elevator The effect of coefficient of balance.
Embodiment two
Fig. 3 is a kind of schematic flow sheet of the computational methods of balance coefficient of elevator that the embodiment of the present invention two provides.This Bright embodiment, on the basis of above-described embodiment, optimizes further and controls the car being provided with counterweight to enter car rolling state and control The output torque of elevator motor processed, so that car enters the operation of poised state, and increased control is provided with counterweight Car enter car rolling state before operation.
Correspondingly, the method for the present embodiment includes:
S210, the described car of setting are zero load, and described car is called intermediate floor.
The mechanistic model of elevator is formulated as: mw=mp+kmq, wherein mwFor counterweight mass (kg), mpFor car deadweight (kg), mqFor elevator rated load quality (kg), k is balance coefficient of elevator.I.e. balance coefficient of elevator is by the deadweight of counterweight, car Obtain with elevator rated load quality, the deadweight of car is quality when car is unloaded, therefore preferably car is set to zero load. When car be in the bottom and top when, cage side steel wire rope and counterweight-side rope capacity difference be maximum, therefore both sides The unbalanced moments of steel wire rope is maximum, and car generation can be acted on, the accurate calculating to balance coefficient of elevator for the impact, therefore, excellent Car is called intermediate floor to realize obtaining the purpose of accurate balance coefficient of elevator by choosing.
S220, when the band-type brake monitoring described car is opened, determine car enter car rolling state.
Band-type brake is the device stoping car movement.When band-type brake is held tightly, car is immovable, when band-type brake is opened, car Can move.When band-type brake is opened, car car slipping due to the effect of weight difference by car deadweight and counterweight.
S230, open the car slipping pulse of rear traction sheave according to band-type brake, the output torque of described elevator motor is compensated Control, so that described car is out of service, hence into poised state.
Elevator drive system applies compensating torque according to the traction sheave car slipping pulse of encoder feedback to motor so that car It is finally stopped operation, the state that car is finally stopped operation is to be obtained by the traction sheave car slipping pulse of encoder feedback.
S240, when car enters poised state, balance coefficient of elevator is calculated according to the output torque of described motor.
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, r is traction sheave radius, and n is baudrier, t For motor output torque in the state of the equilibrium, g is acceleration of gravity.
Exemplarily, n can take 1 or 2, when car is provided with movable pulley, takes 1;When no movable pulley on car, take 2, Thus obtain more accurate balance coefficient of elevator.
Balance coefficient of elevator is by the output torque of motor, baudrier, traction sheave radius and elevator rated load quality meter Obtain, that is, when car deadweight and load weight are unknown, still can obtain more accurately balance coefficient of elevator.
Preferably, the operation that the present embodiment can be performed a plurality of times obtains multiple balance coefficient of elevator, then uses averaging method meter Calculate final balance coefficient of elevator, improve the accuracy of balance coefficient of elevator.Obtain multiple in the operation that the present embodiment is performed a plurality of times During balance coefficient of elevator, can select, after nothing weighs the setting effectively of starting pattern, elevator to be divided from intermediate floor Nearest last layer and next nearest layer is not called to calculate balance coefficient of elevator respectively.
It is zero load that the embodiment of the present invention is passed through to arrange described car, and car is called intermediate floor, and opening band-type brake makes Car enters car rolling state, car is applied with compensation control and makes car be finally stopped operation, according to the output torque meter of motor Calculation obtains balance coefficient of elevator it is achieved that obtaining more accurately balance coefficient of elevator and simple and quick.
In another preferred implementation of the present embodiment, calculate elevator balanced in the output torque according to described motor After coefficient, also include:
According to the torque difference of elevator static friction torque and/or cage side steel wire rope and counterweight-side steel wire rope, to elevator balanced Coefficient is corrected.
Due to guide rail and lead and there is static friction between boots during elevator starter, the elevator static friction torque of different model is big Little also inconsistent, simultaneously as during test car position and counterweight be not in same level be cage side steel wire rope with right There is torque difference in heavy side steel wire rope, test result is also had an impact it is therefore desirable to arrange a parameter, for compensating this two sides The deviation that face is brought, reaches the purpose to balance coefficient of elevator correction.This parameter can be when elevator dispatches from the factory according to different model Elevator be configured.
Embodiment three
Fig. 4 is the structural representation of the computing device of one of the embodiment of the present invention three balance coefficient of elevator.This device For executing the computational methods of the balance coefficient of elevator that above-mentioned any embodiment is provided.This device includes:
Car control module 310, for controlling the car being provided with counterweight to enter car rolling state;
Motor control module 320, for controlling the output torque of elevator motor, so that car enters poised state;
Coefficients calculation block 330, for when car enters poised state, the output torque according to described motor calculates electricity Terraced coefficient of balance.
Further, this device also includes: car setup module, is used for:
Before the car that described control is provided with counterweight enters car rolling state, arranging described car is zero load, will be described Car calls intermediate floor.
Further, described car control module 310 specifically for:
When the band-type brake monitoring described car is opened, determine that car enters car rolling state.
Further, described motor control module 320 specifically for:
Open the car slipping pulse of rear traction sheave according to band-type brake, control compensated to the output torque of described elevator motor, So that described car is out of service, hence into poised state.
Further, described coefficients calculation block 330 specifically for:
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, t is motor power output in the state of the equilibrium Square, r is traction sheave radius, and n is baudrier, and g is acceleration of gravity.
Further, this device also includes: coefficient correction module, is used for:
After the output torque according to described motor calculates balance coefficient of elevator, according to elevator static friction torque and/or Cage side steel wire rope and the torque difference of counterweight-side steel wire rope, are corrected to balance coefficient of elevator.
The computing device of balance coefficient of elevator provided in an embodiment of the present invention is it is achieved that using car in poised state The output torque of motor is conveniently calculated the effect of balance coefficient of elevator.
The computing device of the balance coefficient of elevator that the embodiment of the present invention is provided can execute any embodiment institute of the present invention The computational methods of the balance coefficient of elevator providing, possess the corresponding functional module of execution method and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes, Readjust and substitute without departing from protection scope of the present invention.Therefore although being carried out to the present invention by above example It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (12)

1. a kind of computational methods of balance coefficient of elevator are it is characterised in that include:
The car being provided with counterweight is controlled to enter car rolling state;
Control the output torque of elevator motor, so that car enters poised state;
When car enters poised state, the output torque according to described motor calculates balance coefficient of elevator.
2. method according to claim 1 is it is characterised in that the car that described control is provided with counterweight enters car slipping shape Before state, also include:
Arranging described car is zero load, and described car is called intermediate floor.
3. method according to claim 1 is it is characterised in that the car that described control is provided with counterweight enters car slipping shape State, comprising:
When the band-type brake monitoring described car is opened, determine that car enters car rolling state.
4. method according to claim 1 is it is characterised in that the output torque of described control elevator motor, so that sedan-chair Railway carriage or compartment enters poised state, comprising:
Open the car slipping pulse of rear traction sheave according to band-type brake, control is compensated to the output torque of described elevator motor, so that Obtain described car out of service, hence into poised state.
5. method according to claim 1 it is characterised in that described when car enter poised state when, according to described electricity The output torque of machine calculates balance coefficient of elevator, comprising:
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, t is motor output torque in the state of the equilibrium, r For traction sheave radius, n is baudrier, and g is acceleration of gravity.
6. method according to claim 5 it is characterised in that calculate elevator balanced in the output torque according to described motor After coefficient, also include:
According to the torque difference of elevator static friction torque and/or cage side steel wire rope and counterweight-side steel wire rope, to balance coefficient of elevator It is corrected.
7. a kind of computing device of balance coefficient of elevator is it is characterised in that include:
Car control module, for controlling the car being provided with counterweight to enter car rolling state;
Motor control module, for controlling the output torque of elevator motor, so that car enters poised state;
Coefficients calculation block, for when car enters poised state, the output torque according to described motor calculates elevator balanced Coefficient.
8. device according to claim 7 is it is characterised in that also include: car setup module, is used for:
Before the car that described control is provided with counterweight enters car rolling state, arranging described car is zero load, by described car Call intermediate floor.
9. device according to claim 7 it is characterised in that described car control module specifically for:
When the band-type brake monitoring described car is opened, determine that car enters car rolling state.
10. device according to claim 7 it is characterised in that described motor control module specifically for:
Open the car slipping pulse of rear traction sheave according to band-type brake, control is compensated to the output torque of described elevator motor, so that Obtain described car out of service, hence into poised state.
11. devices according to claim 7 it is characterised in that described coefficients calculation block specifically for:
According to equation below, according to the output torque calculating balance coefficient of elevator of described motor:
k = t * n r * m q * g
Wherein, k is balance coefficient of elevator, mqFor elevator rated load quality, t is motor output torque in the state of the equilibrium, r For traction sheave radius, n is baudrier, and g is acceleration of gravity.
12. devices according to claim 11 are it is characterised in that also include: coefficient correction module, are used for:
After the output torque according to described motor calculates balance coefficient of elevator, according to elevator static friction torque and/or car Side steel wire rope and the torque difference of counterweight-side steel wire rope, are corrected to balance coefficient of elevator.
CN201611025891.1A 2016-11-18 2016-11-18 Calculation method and device of elevator equilibrium coefficient Pending CN106348117A (en)

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CN108394772A (en) * 2018-02-02 2018-08-14 杭州句力科技有限公司 A kind of balance coefficient of elevator detection method and system
CN109896378A (en) * 2017-12-11 2019-06-18 日立楼宇技术(广州)有限公司 Monitoring method, device, elevator control cabinet, system, equipment and storage medium
IT201900011793A1 (en) * 2019-07-15 2021-01-15 Montanari Giulio & C S R L Method and a device for verifying the correct installation of an elevator

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IT201900011793A1 (en) * 2019-07-15 2021-01-15 Montanari Giulio & C S R L Method and a device for verifying the correct installation of an elevator

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Application publication date: 20170125