CN106081774A - A kind of balance coefficient of elevator detection alarm method and system - Google Patents

A kind of balance coefficient of elevator detection alarm method and system Download PDF

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Publication number
CN106081774A
CN106081774A CN201610668312.9A CN201610668312A CN106081774A CN 106081774 A CN106081774 A CN 106081774A CN 201610668312 A CN201610668312 A CN 201610668312A CN 106081774 A CN106081774 A CN 106081774A
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China
Prior art keywords
balance
coefficient
elevator
point
unit
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CN201610668312.9A
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Chinese (zh)
Inventor
郑世云
李彬
宋泉宇
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重庆迈高电梯有限公司
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Priority to CN201610668312.9A priority Critical patent/CN106081774A/en
Publication of CN106081774A publication Critical patent/CN106081774A/en

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Classifications

    • 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
    • B66B5/0018Devices monitoring the operating condition of the elevator system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/14Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads

Abstract

Balance coefficient of elevator of the present invention detection alarm method and system, comprise the following steps: S1: employing manually sets balance point position or employing is calculated balance point position;Described balance point position refers to the hitch point of lift car and the hitch point of the counterweight position just at horizontal symmetry;S2: when described elevator no-load, automatically start detection program according to setting in advance or manually boot detection program, measuring the moment of the traction machine of described elevator when the car empty down of the most described elevator is by described balance point position, the traction machine Calculating Torque during Rotary obtained by described measurement obtains balance coefficient of elevator.S3: compared with presetting threshold value by described coefficient of balance, it is judged that whether described coefficient of balance is in presetting threshold value, if not in presetting threshold value, sends alarm or/and send described calculated coefficient of balance to staff.Present invention achieves balance coefficient of elevator Aulomatizeted Detect and detection, convenient, fast, degree of accuracy is high.

Description

A kind of balance coefficient of elevator detection alarm method and system

Technical field

The present invention relates to elevator reparing maintenance technical field, be specifically related to a kind of balance coefficient of elevator detection alarm method and System.

Background technology

After elevator is paid, there is a lot of property that elevator is decorate and install some protective measures additional, maintaining personnel In order to eliminate the resonance or shake produced when elevator runs, add situation all forcibly changings such as sound insulation shock dropping material car oneself Weight, thus change the coefficient of balance of elevator, elevator safety operation is added hidden danger, it is therefore desirable to the coefficient of balance to elevator Detect.

Prior art balance coefficient of elevator measuring method is, a people uses pincerlike meter real-time supervisory control device input current, Another people dig-ins steel wire rope balanced line, and when ready to balance line arrives, notice measures people's record current data now.This conventional survey Metering method precision is the highest and wastes time and energy and can not realize the routine testing to balance coefficient of elevator.

Technology also has some by measuring the method that elevator device traction machine moment carrys out calculated equilibrium coefficient now, but, These methods carry out calculated equilibrium coefficient by measuring traction machine moment, do not consider the unloading torque of traction machine, and computational accuracy is the highest. And another prior art carrys out calculated equilibrium coefficient by measuring traction machine moment, its method used is static detection side Method, needs to be still in lift car balance point position, and operation inconvenience, lift car is steel wire rope and elevator when equilibrium point is static Traction sheave between there is quiet resistive torque, traction machine needs to overcome the biggest quiet resistive torque just starting when, have impact on reality Border measurement result is inaccurate.

Prior art is come the side of calculated equilibrium coefficient and is not considered elevator upwards by measuring elevator device traction machine moment Running and run downwards traction machine and be in the impact on measurement result of generating state and on-position, measurement result is inaccurate.

Further, prior art is required for relevant staff for the detection of balance coefficient of elevator goes to elevator infield Manually boot, waste time and energy, it is impossible to realize the automatic detection of balance coefficient of elevator, automatic alarm, reduce the peace of elevator device Quan Xing.

Summary of the invention

Can not automatically detect to solve balance coefficient of elevator, testing result is inaccurate, and testing result exceeds safety range Can not the problem of automatic alarm, the present invention proposes a kind of balance coefficient of elevator detection alarm method and system.

Balance coefficient of elevator of the present invention detection alarm method, comprises the following steps:

S1: employing manually sets balance point position or employing is calculated balance point position;Described balance point position refers to The hitch point of lift car and the hitch point of counterweight are just at the position of horizontal symmetry;

S2: when described elevator no-load, automatically starts detection program according to setting in advance or manually boots detection program, The moment of the traction machine of described elevator is measured, by institute when the car empty down of the most described elevator is by described balance point position State and measure the traction machine Calculating Torque during Rotary that obtains and obtain balance coefficient of elevator;

S3: described coefficient of balance is compared with presetting threshold value, it is judged that whether described coefficient of balance is presetting In threshold value, if not in presetting threshold value, send alarm or/and sent extremely by described calculated coefficient of balance Staff.

Further, described balance coefficient of elevator detection alarm method, employing following formula calculating balance coefficient of elevator K:

GDifference=2* (T-T1)*n/D

GDifference/ g=mDifference

In formula, mDifferenceFor counterweight-side and cage side quality difference, unit is kg;M is elevator payload ratings, and unit is kilogram; GDifferenceFor counterweight-side and cage side weight difference, unit is cattle;T is when elevator runs the actually detected traction machine arrived to equilibrium point Moment, unit is cattle rice;T1For traction machine unloading torque, staff setting according to design specification, unit is cattle rice;D is Traction sheave diameter, unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.

Further, described balance coefficient of elevator detection alarm method, use the method bag being calculated balance point position Include: be calculated the position data of equilibrium point by hoistway data, elevator frequency converter according to this data Automatic-searching to equilibrium point Exact position.

Further, described balance coefficient of elevator detection alarm method, use the method bag manually setting balance point position Include: be calculated the position data of equilibrium point by hoistway data, operate described elevator and run under maintenance model to described meter The balance point position obtained, adjusts balance point position up and down by the man machine interface of converter, makes elevator find more accurate Balance point position.

Further, described balance coefficient of elevator detection alarm method, further comprising the steps of: the balance system of elevator every time Number detection shows described coefficient of balance and counterweight-side corresponding to described coefficient of balance and cage side quality difference after terminating;And use Repetitive measurement coefficient of balance calculated equilibrium coefficient meansigma methods, to obtain coefficient of balance more accurately.

Further, described balance coefficient of elevator detection alarm method, further comprising the steps of: by described calculated Coefficient of balance sends to Cloud Server, and accesses described Cloud Server by terminal and check the balance of preservation in described Cloud Server Coefficient;To facilitate related personnel at any time balance coefficient of elevator to be checked, improve the safety of elevator device;

Described Cloud Server judge described coefficient of balance whether in presetting threshold value, if described coefficient of balance is not In presetting threshold value, described Cloud Server sends alarm to related personnel.

For ensureing the enforcement of said method, the present invention also proposes a kind of balance coefficient of elevator detection warning system, including: flat Weighing apparatus point position determination unit, coefficient of balance acquiring unit and coefficient of balance processing unit;Balance point position determines unit and balance Coefficient acquiring unit connects, and balance point position determines that the balance point position information determined is sent to coefficient of balance and obtains single by unit Unit, coefficient of balance acquiring unit is connected with coefficient of balance processing unit, the coefficient of balance that coefficient of balance acquiring unit will calculate Send to coefficient of balance processing unit;

Wherein, described balance point position determines that unit employing manually sets balance point position or employing is calculated balance Point position;Described balance point position refers to the position of the hitch point of lift car and the hitch point horizontal symmetry of counterweight;

Described coefficient of balance acquiring unit is when elevator no-load, according to setting in advance, automatically starts detection program or hands Dynamic start detection program, the car of described elevator by top layer empty down by described balance point position time measure described elevator Traction machine moment, obtains balance coefficient of elevator by traction machine Calculating Torque during Rotary;

Coefficient of balance processing unit by the balance point position calculated coefficient of balance of coefficient acquiring unit with preset Threshold value compares;Judge that described coefficient of balance, whether in presetting threshold value, if not in presetting threshold value, is sent out Go out alarm or/and sent described calculated coefficient of balance to staff by the Internet.

Further, described coefficient of balance acquiring unit employing following formula calculating balance coefficient of elevator:

GDifference=2* (T-T1)*n/D

GDifference/ g=mDifference

Wherein, K is coefficient of balance;GDifferenceFor counterweight-side and cage side weight difference, unit cattle;mDifferenceFor counterweight-side and cage side Quality difference, unit is kilogram;M is elevator payload ratings, and unit is kilogram;T is when elevator runs to equilibrium point reality inspection The traction machine moment measured, unit is cattle rice;T1For traction machine unloading torque, staff set according to design specification, single Position is cattle rice;D is traction sheave diameter, and unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.

Further, described balance point position determines that unit uses the system being calculated balance point position, including: pass through Hoistway data are calculated the position data of equilibrium point, elevator frequency converter according to this data Automatic-searching to the accurate position of equilibrium point Put.

Further, described balance point position determines that unit uses the system manually setting balance point position, including: described The converter of elevator is calculated the position data of equilibrium point by hoistway data, operates described elevator and runs under maintenance model To described calculated balance point position, adjust balance point position up and down by the man machine interface of converter, make elevator find More accurate balance point position.

Further, coefficient of balance processing unit elevator coefficient of balance detect terminate after show described coefficient of balance and Counterweight-side corresponding to described coefficient of balance and cage side quality difference;Further, coefficient of balance processing unit putting down repetitive measurement Weighing apparatus coefficient calculations coefficient of balance meansigma methods, to obtain coefficient of balance more accurately.

Further, described balance coefficient of elevator detection warning system also includes Cloud Server and terminal, described balance system Described calculated coefficient of balance is sent to Cloud Server by number processing unit;Access described Cloud Server by terminal to check The coefficient of balance preserved in described Cloud Server;Described Cloud Server judges whether described coefficient of balance is presetting threshold value In, if described coefficient of balance not in presetting threshold value described Cloud Server send alarm to related personnel.

Present invention achieves balance coefficient of elevator Aulomatizeted Detect and detection, convenient, fast, degree of accuracy is high.The present invention Use the method that load torque collection is directly calculated coefficient of balance, and consider the no-load torque of traction machine and quiet resistive torque Impact on testing result, it is contemplated that elevator runs traction machine up and down and is in generating and on-position to testing result Impact, selects to improve degree of accuracy during running downwards.Coefficient of balance of the present invention detection warning is performed fully automatic, it is achieved Routine testing to coefficient of balance, not only can detect the weight change of car and counterweight, and if as traction machine or its His reason causes coefficient of balance to change, it is possible to send warning, is sent to repair and maintenance producer or personnel by the Internet, for elevator safety Operation provides guarantee.

Accompanying drawing explanation

Fig. 1 is the flow chart of balance coefficient of elevator detection alarm method

Fig. 2 is the structure chart of balance coefficient of elevator detection warning system

Fig. 3 is comparative example coefficient of balance detection method current capacity curve

Detailed description of the invention

Fig. 1 is the flow chart of balance coefficient of elevator of the present invention detection alarm method.In figure, 10 is that elevator balanced some position is true Determining step, 20 is balance coefficient of elevator obtaining step, and 30 is the flat very coefficient processing step of elevator.

Embodiment one

The detection being completed balance coefficient of elevator by following steps is reported to the police.

Step 10:

Staff manually sets balance point position;

Calculate in another embodiment to balance point position.

Balance point position refers to the hitch point of lift car and the hitch point of the counterweight position just at horizontal symmetry.

Step 20

When elevator no-load, automatically start detection program according to setting in advance, at lift car empty down by flat Measuring the moment of the traction machine of elevator during weighing apparatus point position, the traction machine Calculating Torque during Rotary obtained by measurement obtains elevator balanced system Number.

In the present embodiment, during elevator no-load, unloaded according to the car setting startup detection program elevator automatically in advance The moment of the descending traction machine by measuring elevator during balance point position, actual measurement load torque is 406.7N m, and no-load torque is 4N m, be calculated the coefficient of balance of elevator be K be 41.09%.

In another embodiment during elevator no-load, staff manually boots detection program, and the car of elevator is by under zero load Row is by measuring the moment of the traction machine of elevator during balance point position, the traction machine Calculating Torque during Rotary obtained by measurement obtains elevator Coefficient of balance.

Obviously, select to measure elevator in zero load runs downwards by the moment of traction machine during equilibrium point non-measured elevator When being still in equilibrium point, the moment of traction machine can reduce steel by the moment of traction machine during equilibrium point in being because measuring and running The impact on measurement result of the quiet resistive torque between cord and elevator traction sheave.

Further, select detection traction machine moment rather than elevator no-load when elevator no-load runs downwards to examine when running up The reason surveying traction machine moment is when elevator no-load runs downwards, and traction machine is in motoring condition, and converter is defeated to traction machine Go out electric current.When elevator no-load runs up, traction machine is in generating state, and traction machine is to converter feedback current.Now drag Drawing torque produced by machine is braking moment, and the torque that i.e. converter detects also is braking moment, sends out owing to traction machine is in Electricity condition, the feedback current producing this braking moment is directly affected by the braking resistor size of converter, again due to braking electricity The selection of resistance is affected relatively big by artificial factor, so elevator no-load runs up, when traction machine is in generating state, converter is examined Survey load torque inaccurate, and when running downwards traction machine be in motoring condition with braking resistor irrelevant, detection torque not Being affected by braking resistor, accuracy of detection is high.

Step 30

Coefficient of balance is compared with presetting threshold value, it is judged that coefficient of balance whether in presetting threshold value, as Fruit, not in presetting threshold value, sends alarm or/and send calculated coefficient of balance to staff.Balance system Number detection warning full-automation decreases manpower consumption, improves elevator safety performance.

Presetting threshold value in the present embodiment is 40%-50%.It is that K is that the present embodiment records coefficient of balance 41.09%, in threshold value set in advance, elevator equilibrium system detection does not send warning with warning system.

Presetting threshold value in another embodiment is 40%-50%.Elevator equilibrium system detection is surveyed with warning system Obtaining coefficient of balance 55%, not in presetting threshold value, elevator equilibrium system detection will be counted by the Internet with warning system The coefficient of balance obtained sends to long-range elevator repair and maintenance personnel.

Presetting threshold value in another embodiment is 40%-50%.Elevator equilibrium system detection is surveyed with warning system Obtaining coefficient of balance 35%, not in presetting threshold value, elevator equilibrium system detection sends alarm with warning system and leads to simultaneously Cross the Internet to send calculated coefficient of balance to long-range elevator repair and maintenance personnel.

Coefficient of balance detection warning full-automation decreases manpower consumption, improves elevator safety performance.

Balance coefficient of elevator detection alarm method, employing following formula calculating balance coefficient of elevator K:

GDifference=2* (T-T1)*n/D

GDifference/ g=mDifference

In formula, mDifferenceFor counterweight-side and cage side quality difference, unit is kg;M is elevator payload ratings, and unit is kg;GDifference For counterweight-side and cage side weight difference, unit is N;T is when elevator runs the actually detected traction machine power arrived to equilibrium point Square, unit is cattle rice;T1For traction machine unloading torque, staff setting according to design specification, unit is cattle rice;D is for draging Running wheel diameter, unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.

In the present embodiment: rated load is 1000Kg both m=1000kg, traction ratio 2:1 both n=2, traction machine uses forever Magnetic-synchro traction machine, traction sheave diameter D is 400mm both D=0.4m, in the present embodiment, runs to flat with normal operation mode At weighing apparatus point, actual measurement load torque is 406.7N m, and no-load torque is 4N m.It is calculated as follows:

406.7-4=F × 0.4/2

F=2013.5N

By F=(G1-G2)/n obtains

G1-G2=2013.5 × 2=4027N

GDifference=G1-G2=4027

mDifference=GDifference/ 9.8=410.9Kg

K=410.9/1000 × 100%=41.09%

Calculate in the present embodiment to coefficient of balance K be 41.09%.

Carry out the most again traditional method current method measurement, car load respectively payload ratings 30%, 40%, 45%, 50%, 60% makees upper and lower omnidistance operation, when car and counterweight run to record at equilibrium point motor current value, Draw Fig. 3 current capacity curve, determine coefficient of balance with the intersection point of upper and lower operation curve.

Intersections of complex curve coefficient of balance is 42.5%, and why traditional measurement method and the present embodiment measuring method have certain Difference, is because traditional measurement method precision the highest, relies on environmental factors relatively big, the automatic survey of the present invention not only efficiency Height, and precision is high.

Be calculated the position data of equilibrium point in the present embodiment by hoistway data, elevator frequency converter is according to these data Automatic-searching is to equilibrium point exact position.

The method manually setting balance point position is used to include in another embodiment: to be calculated flat by hoistway data The position data of weighing apparatus point, operation elevator runs to calculated balance point position under maintenance model, by the people of converter Machine interface adjusts balance point position position up and down, makes elevator find more accurate balance point position.

In the present embodiment, detection show coefficient of balance and counterweight-side corresponding to coefficient of balance and cage side quality after terminating Difference;And use repetitive measurement coefficient of balance calculated equilibrium coefficient meansigma methods, to obtain coefficient of balance more accurately.

Balance coefficient of elevator K is 41.09% in threshold value set in advance in the present embodiment, coefficient of balance detection knot Shu Hou, with warning system, elevator equilibrium system detection shows that the coefficient of balance K detected is 41.09%.

Recording balance coefficient of elevator k in another embodiment is 55%, and elevator load is 1000kg, and elevator equilibrium system is examined Survey with warning system display coefficient of balance k is 55% and counterweight-side corresponding to this coefficient of balance and cage side quality difference- 100kg.Operator are by after counterweight-side Mass lost 100kg, and balance coefficient of elevator is 45%, falls into threshold value set in advance In.

Calculated coefficient of balance is sent to Cloud Server, and checks Cloud Server by terminal access Cloud Server The coefficient of balance of middle preservation;To facilitate related personnel at any time balance coefficient of elevator to be checked, improve the safety of elevator device Property.

Cloud Server judge coefficient of balance whether in presetting threshold value, if coefficient of balance is not presetting door In threshold value, Cloud Server sends alarm to related personnel.

Coefficient of balance K is 41.09% in the present embodiment, and threshold value set in advance is 40%-50%, and this records flat Weighing apparatus coefficient is in threshold value set in advance, and Cloud Server does not sends alarm to related personnel.

The coefficient of balance 55% surveyed in another embodiment, threshold value set in advance is 40%-50%, and Cloud Server is sentenced Disconnected coefficient of balance, not in presetting threshold value, sends alarm to related personnel.Reported to the police after balance coefficient of elevator over range Journey is performed fully automatic, and saves manpower and materials, improves the safety of elevator.

Embodiment two

Fig. 2 is the structure chart of balance coefficient of elevator of the present invention detection and warning system.In figure, 100 determine for balance point position Unit, 200 is coefficient of balance acquiring unit, and 300 is balance point position processing unit, and 400 is Cloud Server, and 500 is terminal.Flat Weighing apparatus point position determination unit 100 is connected with coefficient of balance acquiring unit 200, and balance point position determines that unit 100 is flat by determine Weighing apparatus dot position information is sent to coefficient of balance acquiring unit 200, and coefficient of balance acquiring unit is connected with coefficient of balance processing unit, The coefficient of balance calculated is sent to coefficient of balance processing unit 300 by coefficient of balance acquiring unit.Coefficient of balance processing unit 300 are connected with Cloud Server 400, and Cloud Server 400 is connected with terminal 500.Coefficient of balance processing unit 300 is by calculated Coefficient of balance numerical value sends to Cloud Server 400, and terminal 500 accesses Cloud Server and checks coefficient of balance numerical value.

Staff's manual operation equilbrium position determines that unit 100 sets balance point position.

In another embodiment equilbrium position determine that unit 100 calculates to balance point position.

Balance point position refers to the hitch point of lift car and the hitch point of the counterweight position just at horizontal symmetry;

When elevator no-load, coefficient of balance acquiring unit 200 starts detection program automatically according to setting in advance, at elevator Car empty down is by measuring the moment of the traction machine of elevator, the traction machine torque meter obtained by measurement during balance point position Calculation obtains balance coefficient of elevator;

In the present embodiment, during elevator no-load, coefficient of balance acquiring unit 200 starts detection automatically according to setting in advance The car empty down of program elevator is by measuring the moment of the traction machine of elevator during balance point position, actual measurement load torque is 406.7N m, no-load torque is 4N m, be calculated the coefficient of balance of elevator be K be 41.09%.

In another embodiment during elevator no-load, staff's manual operation coefficient of balance acquiring unit 200 starts detection Program, the car of elevator, is obtained by measurement by measuring the moment of the traction machine of elevator during balance point position by empty down Traction machine Calculating Torque during Rotary obtain balance coefficient of elevator.

Obviously, select to measure elevator in zero load runs downwards by the moment of traction machine during equilibrium point non-measured elevator When being still in equilibrium point, the moment of traction machine can reduce steel by the moment of traction machine during equilibrium point in being because measuring and running The impact on measurement result of the quiet resistive torque between cord and elevator traction sheave.

Further, select detection traction machine moment rather than elevator no-load when elevator no-load runs downwards to examine when running up The reason surveying traction machine moment is when elevator no-load runs downwards, and traction machine is in motoring condition, and converter is defeated to traction machine Go out electric current.When elevator no-load runs up, traction machine is in generating state, and traction machine is to converter feedback current.Now drag Drawing torque produced by machine is braking moment, and the torque that i.e. converter detects also is braking moment, sends out owing to traction machine is in Electricity condition, the feedback current producing this braking moment is directly affected by the braking resistor size of converter, again due to braking electricity The selection of resistance is affected relatively big by artificial factor, so elevator no-load runs up, when traction machine is in generating state, converter is examined Survey load torque inaccurate, and when running downwards traction machine be in motoring condition with braking resistor irrelevant, detection torque not Being affected by braking resistor, accuracy of detection is high.

Coefficient of balance is compared by coefficient of balance processing unit 300 with presetting threshold value, it is judged that whether coefficient of balance exists Preset in threshold value, if not in presetting threshold value, send alarm or/and sent out by calculated coefficient of balance Deliver to staff.Coefficient of balance detection warning full-automation decreases manpower consumption, improves elevator safety performance.

Presetting threshold value in the present embodiment is 40%-50%.It is that K is that the present embodiment records coefficient of balance 41.09%, in threshold value set in advance, coefficient of balance processing unit 300 does not send warning.

Presetting threshold value in another embodiment is 40%-50%.Coefficient of balance acquiring unit 200 records balance system Several 55%, not in presetting threshold value, coefficient of balance processing unit 300 passes through the Internet by calculated coefficient of balance Send to long-range elevator repair and maintenance personnel.

Presetting threshold value in another embodiment is 40%-50%.Coefficient of balance acquiring unit 200, not in advance In setting threshold value, calculated coefficient of balance is sent to long-range electricity by coefficient of balance processing unit 300 by the Internet Ladder repair and maintenance personnel.

Coefficient of balance detection warning full-automation decreases manpower consumption, improves elevator safety performance.

Balance coefficient of elevator detection alarm method, employing following formula calculating balance coefficient of elevator K:

GDifference=2* (T-T1)*n/D

GDifference/ g=mDifference

In formula, mDifferenceFor counterweight-side and cage side quality difference, unit is kg;M is elevator payload ratings, and unit is kg;GDifference For counterweight-side and cage side weight difference, unit is N;T is when elevator runs the actually detected traction machine power arrived to equilibrium point Square, unit is cattle rice;T1For traction machine unloading torque, staff setting according to design specification, unit is cattle rice;D is for draging Running wheel diameter, unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.

In the present embodiment: rated load is 1000Kg both m=1000kg, traction ratio 2:1 both n=2, traction machine uses forever Magnetic-synchro traction machine, traction sheave diameter D is 400mm both D=0.4m, in the present embodiment, runs to flat with normal operation mode At weighing apparatus point, actual measurement load torque is 406.7N m, and no-load torque is 4N m.It is calculated as follows:

406.7-4=F × 0.4/2

F=2013.5N

By F=(G1-G2)/n obtains

G1-G2=2013.5 × 2=4027N

GDifference=G1-G2=4027

mDifference=GDifference/ 9.8=410.9Kg

K=410.9/1000 × 100%=41.09%

In the present embodiment coefficient of balance acquiring unit 200 calculate to coefficient of balance K be 41.09%.

Carry out the most again traditional method current method measurement, car load respectively payload ratings 30%, 40%, 45%, 50%, 60% makees upper and lower omnidistance operation, when car and counterweight run to record at equilibrium point motor current value, Draw Fig. 3 current capacity curve, determine coefficient of balance with the intersection point of upper and lower operation curve.

Intersections of complex curve coefficient of balance is 42.5%, and why traditional measurement method and the present embodiment measuring method have certain Difference, is because traditional measurement method precision the highest, relies on environmental factors relatively big, the automatic survey of the present invention not only efficiency Height, and precision is high.

Equilbrium position determines that unit 100 is calculated the position data of equilibrium point by hoistway data in the present embodiment, Elevator frequency converter according to this data Automatic-searching to equilibrium point exact position.

Staff's manual operation equilbrium position is used to determine that unit 100 sets balance point position in another embodiment Method includes: be calculated the position data of equilibrium point by hoistway data, and operation elevator runs to calculating under maintenance model The balance point position obtained, adjusts balance point position position up and down by the man machine interface of converter, makes elevator find more accurate Balance point position.

In the present embodiment, coefficient of balance processing unit 300 detection shows after terminating that coefficient of balance and coefficient of balance are corresponding Counterweight-side and cage side quality difference;And use repetitive measurement coefficient of balance calculated equilibrium coefficient meansigma methods, to obtain more Coefficient of balance accurately.

Balance coefficient of elevator K is 41.09% in threshold value set in advance in the present embodiment, coefficient of balance detection knot Shu Hou, the coefficient of balance K that coefficient of balance processing unit 300 display detects is 41.09%.

Recording balance coefficient of elevator k in another embodiment is 55%, and elevator load is 1000kg, and coefficient of balance processes single Unit 300 display coefficient of balance k are 55% and counterweight-side corresponding to this coefficient of balance and cage side quality difference-100kg.Operator Member is by after counterweight-side Mass lost 100kg, and balance coefficient of elevator is 45%, falls in threshold value set in advance.

Calculated coefficient of balance is sent to Cloud Server 400, and accesses Cloud Server 400 look into by terminal 500 See the coefficient of balance preserved in Cloud Server 400;To facilitate related personnel at any time balance coefficient of elevator to be checked, improve electricity The safety of ladder system.

Cloud Server 400 judge coefficient of balance whether in presetting threshold value, if coefficient of balance does not sets in advance In set threshold value, Cloud Server 400 sends alarm to related personnel.

Coefficient of balance K is 41.09% in the present embodiment, and threshold value set in advance is 40%-50%, and this records flat Weighing apparatus coefficient is in threshold value set in advance, and Cloud Server 400 does not sends alarm to related personnel.

The coefficient of balance 55% surveyed in another embodiment, threshold value set in advance is 40%-50%, Cloud Server 400 judge that coefficient of balance, not in presetting threshold value, sends alarm to related personnel.Report after balance coefficient of elevator over range Alert process is performed fully automatic, and saves manpower and materials, improves the safety of elevator.

Present invention achieves balance coefficient of elevator Aulomatizeted Detect and detection, convenient, fast, degree of accuracy is high.The present invention Use the method that load torque collection is directly calculated coefficient of balance, and consider the no-load torque of traction machine and quiet resistive torque Impact on testing result, it is contemplated that elevator runs traction machine up and down and is in generating and on-position to testing result Impact, selects to carry out detection during running downwards and improves degree of accuracy.Coefficient of balance of the present invention detection is reported to the police full-automatic Carry out, it is achieved that the routine testing to coefficient of balance, not only can detect the weight change of car and counterweight, and if as draging Draw machine or other reasons causes coefficient of balance to change, it is possible to send warning, sent to repair and maintenance producer or personnel by the Internet, for Elevator safety operation provides guarantee.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, all should comprise Within protection scope of the present invention.

Claims (10)

1. a balance coefficient of elevator detection alarm method, it is characterised in that comprise the following steps:
S1: employing manually sets balance point position or employing is calculated balance point position;Described balance point position refers to elevator The hitch point of car and the hitch point of counterweight are just at the position of horizontal symmetry;
S2: when described elevator no-load, automatically starts detection program according to setting in advance or manually boots detection program, i.e. institute The moment of the traction machine of described elevator is measured, by described survey when stating the car empty down of elevator by described balance point position The traction machine Calculating Torque during Rotary measured obtains balance coefficient of elevator;
S3: described coefficient of balance is compared with presetting threshold value, it is judged that whether described coefficient of balance is presetting threshold In value, if not in presetting threshold value, send alarm or/and send described calculated coefficient of balance to work Personnel.
2. balance coefficient of elevator detection alarm method as claimed in claim 1, it is characterised in that use following formula to calculate elevator and put down Weighing apparatus COEFFICIENT K:
GDifference=2* (T-T1)*n/D
GDifference/ g=mDifference
In formula, mDifferenceFor counterweight-side and cage side quality difference, unit is kg;M is elevator payload ratings, and unit is kilogram;GDifferenceFor Counterweight-side and cage side weight difference, unit is cattle;T is when elevator runs the actually detected traction machine power arrived to equilibrium point Square, unit is cattle rice;T1For traction machine unloading torque, staff setting according to design specification, unit is cattle rice;D is for draging Running wheel diameter, unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.
3. balance coefficient of elevator detection alarm method as claimed in claim 1, it is characterised in that described balance coefficient of elevator is examined Observe and predict alarm method, use the method being calculated balance point position to include: to be calculated the position of equilibrium point by hoistway data Data, elevator frequency converter according to this data Automatic-searching to equilibrium point exact position;
Described balance coefficient of elevator detection alarm method, uses the method manually setting balance point position to include: by hoistway number According to being calculated the position data of equilibrium point, operate described elevator and run under maintenance model to described calculated equilibrium point Position, adjusts balance point position up and down by the man machine interface of converter, makes elevator find more accurate balance point position.
4. balance coefficient of elevator detection alarm method as claimed in claim 1, it is characterised in that described balance coefficient of elevator is examined Observe and predict alarm method, further comprising the steps of: every time the coefficient of balance detection of elevator shows described coefficient of balance and described after terminating Counterweight-side corresponding to coefficient of balance and cage side quality difference;And use repetitive measurement coefficient of balance calculated equilibrium coefficient average Value.
5. balance coefficient of elevator detection alarm method as claimed in claim 1, it is characterised in that described balance coefficient of elevator is examined Observe and predict alarm method, further comprising the steps of: described calculated coefficient of balance to be sent to Cloud Server, and is connect by terminal Enter described Cloud Server and check the coefficient of balance preserved in described Cloud Server;To facilitate related personnel at any time to elevator balanced system Number checks, improves the safety of elevator device;
Described Cloud Server judge described coefficient of balance whether in presetting threshold value, if described coefficient of balance is not in advance First setting in threshold value, described Cloud Server sends alarm to related personnel.
6. a balance coefficient of elevator detection warning system, determines unit including: balance point position, coefficient of balance acquiring unit and Coefficient of balance processing unit;
Described balance point position determines that unit is connected with described coefficient of balance acquiring unit, and described balance point position determines that unit will The balance point position information determined is sent to described coefficient of balance acquiring unit, described coefficient of balance acquiring unit and described balance Coefficient processing unit connects, and the coefficient of balance calculated is sent to the process of described coefficient of balance by described coefficient of balance acquiring unit Unit;
Wherein, described balance point position determines that unit employing manually sets balance point position or employing is calculated equilibrium point position Put;Described balance point position refers to the position of the hitch point of lift car and the hitch point horizontal symmetry of counterweight;
Described coefficient of balance acquiring unit is when elevator no-load, according to setting in advance, automatically starts detection program or manually opens Dynamic detection program, the car of described elevator by top layer empty down by described balance point position time measure the traction of described elevator Machine power square, obtains balance coefficient of elevator by traction machine Calculating Torque during Rotary;
Described coefficient of balance processing unit by the described balance point position calculated coefficient of balance of coefficient acquiring unit with in advance Setting threshold value compares;Judge described coefficient of balance whether in presetting threshold value, if not presetting threshold value In, send alarm or/and sent described calculated coefficient of balance to staff by the Internet.
7. balance coefficient of elevator detection warning system as claimed in claim 6, it is characterised in that described coefficient of balance obtains single Unit's employing following formula calculating balance coefficient of elevator:
GDifference=2* (T-T1)*n/D
GDifference/ g=mDifference
Wherein, K is coefficient of balance;GDifferenceFor counterweight-side and cage side weight difference, unit cattle;mDifferenceFor counterweight-side and cage side quality Difference, unit is kilogram;M is elevator payload ratings, and unit is kilogram;T is for running actually detected to equilibrium point arriving when elevator Traction machine moment, unit is cattle rice;T1For traction machine unloading torque, staff setting according to design specification, unit is Cattle rice;D is traction sheave diameter, and unit is rice;N is the actual traction ratio of elevator, elevator design specification determine.
8. balance coefficient of elevator detection warning system as claimed in claim 6, it is characterised in that described balance point position determines Unit uses the method being calculated balance point position, including: it is calculated the position data of equilibrium point by hoistway data, electricity Ladder converter according to this data Automatic-searching to equilibrium point exact position;
Described balance point position determines that unit uses the method manually setting balance point position, including: the converter of described elevator Be calculated the position data of equilibrium point by hoistway data, operate described elevator run under maintenance model to described in calculate The balance point position arrived, adjusts balance point position up and down by the man machine interface of converter, makes elevator find and balances more accurately Point position.
9. balance coefficient of elevator detection warning system as claimed in claim 6, it is characterised in that described coefficient of balance processes single Unit the coefficient of balance of elevator detect terminate after show described coefficient of balance and counterweight-side corresponding to described coefficient of balance and car Side quality difference;Further, described coefficient of balance processing unit by the coefficient of balance calculated equilibrium coefficient meansigma methods of repetitive measurement, with Obtain coefficient of balance more accurately.
10. balance coefficient of elevator detection warning system as claimed in claim 6, it is characterised in that described balance coefficient of elevator Detection warning system also includes Cloud Server and terminal, and described coefficient of balance processing unit is by described calculated coefficient of balance Send to Cloud Server;Access described Cloud Server by terminal and check the coefficient of balance preserved in described Cloud Server;Described Cloud Server judge described coefficient of balance whether in presetting threshold value, if described coefficient of balance is not presetting door In threshold value, described Cloud Server sends alarm to related personnel.
CN201610668312.9A 2016-08-15 2016-08-15 A kind of balance coefficient of elevator detection alarm method and system CN106081774A (en)

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Application publication date: 20161109