CN105060053B - A kind of detection method of balance coefficient of elevator - Google Patents
A kind of detection method of balance coefficient of elevator Download PDFInfo
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- CN105060053B CN105060053B CN201510486437.5A CN201510486437A CN105060053B CN 105060053 B CN105060053 B CN 105060053B CN 201510486437 A CN201510486437 A CN 201510486437A CN 105060053 B CN105060053 B CN 105060053B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
Abstract
A kind of detection method of balance coefficient of elevator, belongs to lift field.Method is to determine the center of elevator hoistways depth direction, extend to form the center band with one fixed width to both sides above and below the midpoint, by detect elevator no-load it is up, it is descending when output torque, elevator belt carry it is up, descending when output torque, utilize controller calculate elevator coefficient of balance.Frictional force and windage operation characteristic equal in magnitude, in opposite direction when the present invention considers ascending for elevator and be descending, the inaccurate defect of conventional output torque calculated equilibrium coefficient is evaded, it is realized by electric life controller, it is simple to operate, be easy to implement without manpower and the extra auxiliary equipment of increase.
Description
Technical field
The invention belongs to lift field, more particularly to a kind of detection method of balance coefficient of elevator.
Background technology
Balance coefficient of elevator is for the quality and the rated load of car of the counterweight that balance portion car is conducted oneself with dignity and sets
Between ratio.The value of counterweight mass is typically to be determined by balance coefficient of elevator test result.China《Elevator surveillance is examined
Test code》The inside first and third, eight codes clearly show that balance coefficient of elevator should be between 0.4~0.5.But in practical operation
In, balance coefficient of elevator K can be influenced to different extents under various conditions, and balance coefficient of elevator is sometimes still
It can become smaller than original numerical value.In this case, the normal operation of elevator will be greatly affected, or even can not
Safe operation.By inspection provision：It must respectively be carried under 30%, 40%, 45%, 50%, 60% rated load in car, determine elevator
Load-current curve of operation, takes the loading coefficient of the joint of its uplink and downlink curve, is the terraced coefficient of balance, hands over
Meeting point is qualified in the range of 40% ~ 50%.But this method exist test process it is cumbersome, to tester's professional skill requirement
Height, testing time length, the low defect of testing efficiency.In order to determine this parameter, two reviewers are not only needed, in addition it is also necessary to many
The workman of name carrying counterweight.Influence the human factor of test result more, reduce the confidence level of test result.Therefore need to set
Count a kind of fast and simple coefficient of balance computational methods.
Reported according to pertinent literature, such as Publication No. CN102745566A " the no-load dynamic measuring instrument of balance coefficient of elevator
And its detection method ", this method measures car and counterweight difference by lineoutofservice signal pull sensor, with reference to elevator rated load,
Calculated equilibrium coefficient.In use, the device needs to be fixed pulling force sensor on a steel cord with wire cable clamp, installation accuracy
It is not easy to ensure.Such as Publication No. CN103145015A " detection method of balance coefficient of elevator ", first will when this method is used
Elevator runs to the position that cage side and load weight are just cancelled out each other, and control traction machine, which is operated in, opens band-type brake after zero-speed,
The output torque of now traction machine is recorded after elevator is detected without movement, according to the traction ratio of traction machine, traction sheave radius, electricity
The parameters such as terraced payload ratings, output torque calculate balance coefficient of elevator.Output torque described in this method must be practical significance
On torque, torque calculation precision requires higher to the parameter of electric machine, and the position that car and load weight just offset is not
It is easily found, accuracy in computation is not easy to ensure.Such as Publication No. CN102583121A's is " a kind of to be surveyed using lift barring handwheel
The method for trying balance coefficient of elevator ", this method installs jiggering force moment testing device on elevator hand handwheel, utilizes torque
Test device tests barring torque numerical value, and the pass of barring torque numerical value and balance coefficient of elevator is calculated according to principle of moment balance
System, so as to try to achieve balance coefficient of elevator.This method needs power-off in test process, and band-type brake is unclamped manually, cumbersome using process
And there is certain potential safety hazard, and extra install sensor is needed, it is cumbersome using process.
Existing invention is generally plug-in device, using the difference of periphery detection device detection car and counterweight gravity, while also needing
Special operational is wanted to coordinate（Detection, jigger wheel Torque test, the detection of band-type brake power and electric energy or output such as lineoutofservice signal pull
Detection of power etc.）；The method that part is directly calculated using torque is generally to export certain in elevator wire rope gravitational equilibrium position
Torque, coefficient of balance is calculated by output torque.But exist and do not consider frictional force, need input traction ratio and traction wheel diameter ginseng
The defects such as number, while the required precision to output torque value is higher.
The content of the invention
It is an object of the invention to provide the detection method of balance coefficient of elevator, it is cumbersome to solve existing detection method, need to borrow
The problems such as power of helping others and plurality of devices could be detected, it is detected without auxiliary equipment, with it is simple to operate, be easy to implement
Advantage.
The technical solution adopted in the present invention is：A kind of detection method of balance coefficient of elevator, is characterized in that：Including
Following steps：
Step 1：The center of elevator hoistways depth direction is determined, extends to be formed with a fixed width to both sides above and below the midpoint
The center band of degree, the center band has the first edge and the second edge；
Step 2：When elevator no-load is up from bottom to the top, apparatus for controlling elevator records elevator at the edge of center band first
And second between edge when traction machine output torque, and average output torque when traction machine passes through center band when calculating up；
Step 3：When elevator no-load is descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second
And first between edge when traction machine output torque, and average output torque when traction machine passes through center band when calculating descending；
Step 4：When elevator belt carries up from bottom to the top, apparatus for controlling elevator records elevator on the side of center band first
The output torque of traction machine when between edge and the second edge, and traction machine turns by the average output during center band when calculating up
Square；
Step 5：The value calculated using step 2~4, calculates the coefficient of balance of elevator, specific formula is：
In formula,For California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying.
As a preferred embodiment of the present invention, step 4 and step 5 are replaced with：
Step 4：When elevator belt carries descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second
And first between edge when traction machine output torque, and average output torque when traction machine passes through center band when calculating descending；
Step 5：The value calculated using step 2~4, calculates the coefficient of balance of elevator, specific formula is：
In formula,For California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying.
As another preferred scheme of the present invention, the detection method of balance coefficient of elevator also comprises the following steps：
Step 6：When elevator belt carries descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second
And first between edge when traction machine output torque, and average output torque when traction machine passes through center band when calculating descending；
Step 7：Calculate the coefficient of balance of elevator, specific formula is：
Step 8：According to step 5 and the result of step 7, the average value of the two is taken, final balance coefficient of elevator is used as,
Formula is：
。
The present invention has the advantage that and good effect is：Due to the detection method of the balance coefficient of elevator of the present invention, it is considered to
Ascending for elevator and it is descending when frictional force and windage operation characteristic equal in magnitude, in opposite direction, evaded conventional output torque
The inaccurate defect of calculated equilibrium coefficient, it is realized by electric life controller, without manpower and the extra auxiliary equipment of increase,
It is simple to operate, be easy to implement.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is a kind of detection method flow chart of balance coefficient of elevator of the invention；
Fig. 2 is the flow chart of one embodiment of the invention；
Fig. 3 is the flow chart of another embodiment of the present invention.
Embodiment
Describe the concrete structure of the present invention in detail according to Fig. 1~Fig. 3.
The detection method of the balance coefficient of elevator of the present embodiment, its flow is as shown in figure 1, comprise the following steps：
In step 101, the center of elevator hoistways depth direction is determined, shape is extended to above and below the midpoint Pmiddle both sides
Into the center band with one fixed width, the center band has the first edge and the second edge, for example, considering electricity in the present embodiment
Terraced normal speed and acceleration, and acceleration and deceleration are calculated apart from S according to speed and acceleration, it is to avoid elevator is defeated during acceleration and deceleration
Go out the deviation effects result of calculation that torque is produced with load torque, according to above-mentioned setting, then the first edge that center band has is
Pmiddle+S+0.5, the second edge that center band has is Pmiddle-S-0.5.
In step 102：Detection method in the present embodiment, it is desirable to which elevator could meet detection when being located at bottom or top layer
Condition.Therefore the position of elevator should be first determined whether, if in intermediate layer, elevator should be adjusted to top layer or bottom.It is actual to survey
During amount, the order of step 102~step 104 without limiting, user can actual conditions output torque is detected.
When elevator no-load is up from bottom to the top, apparatus for controlling elevator records elevator at the edge of center band first and second
The output torque of traction machine when between edge, and when calculating up traction machine pass through center band when average output torque, such as
Failure is reported in fruit running, then stops measurement, step 6 is performed.
In step 103：When elevator no-load is descending from top to bottom, apparatus for controlling elevator records elevator in center band second
The output torque of traction machine when between edge and the first edge, and when calculating descending traction machine pass through center band when average output
TorqueIf reporting failure in running, stop measurement.
In step 104：When elevator belt carries up from bottom to the top on (e.g., 80 ~ 100Kg), apparatus for controlling elevator record
The output torque of traction machine when elevator is between the edge of center band first and the second edge, and when calculating up in traction machine process
Average output torque during its central bandIf reporting failure in running, stop measurement.
In step 105：The value calculated using step 102~105, calculates the coefficient of balance of elevator, specific formula
For：
In formula,For California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying.
Detection method in the present embodiment, it is contemplated that ascending for elevator and it is descending when frictional force and windage is equal in magnitude, direction
Opposite operation characteristic, can overcome frictional force and windage effect, and up output torque is added with descending output torque, friction
Power and windage are about fallen, and result of calculation only reacts the relation of railway carriage or compartment gravity and output torque, have evaded conventional output torque and have calculated
The inaccurate defect of coefficient of balance, specifically shifts process onto as follows：
In formula, M2For counterweight mass；M1For car mass；M is payload ratings.
（0-1）
Following formula can be obtained according to characteristic during operation：
In formula, Tm2For the torque needed for overcoming counterweight；Tm1For the torque needed for overcoming car；TfFor needed for overcoming frictional force
Torque；TZ0For the torque needed for overcoming cab interior weight；T1For unloaded up output torque；T2Turn for empty down output
Square；T3Up output torque is carried for band；T4Descending output torque is carried for band；Z0For cab interior weight；Z is car payload ratings
Amount.
Will（1-1）（1-2）Plus it is reducible fall TfError, can obtain coefficient of balance formula（0-1）Molecule.
Will（1-2）（2-2）Item subtract it is reducible fall Tm2-Tm1Item and Tf, it is left torque TZ0.
Pass through formula（3-1）By TZ0It is multiplied by coefficientT can be releasedZ。
Above-mentioned inference is brought into formula（0-1）Coefficient of balance calculation formula can be obtained：
Embodiment 2：The present embodiment and the difference of embodiment 1 are：Step 104 and step 105 make following replacement：
Because step 201~step 204 is substantially the same manner as Example 1, be not explained herein, only to replacement after
Step 204 and step 205 explain it is as follows：
In step 204, when elevator belt load (e.g., 80 ~ 100Kg) is descending from top to bottom, apparatus for controlling elevator record electricity
Ladder between the edge of center band second and the first edge when traction machine output torque, and when calculating descending traction machine by center
With when average output torque。
In step 205, the coefficient of balance of elevator is calculated, specific formula is：
In formula,For California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying, its
Flow is as shown in Figure 2.
Embodiment 3：The present embodiment and the difference of embodiment 1 are：To make the balance coefficient of elevator calculated more prepare,
The present embodiment takes the average value repeatedly measured as the balance coefficient of elevator eventually detected, and its flow is as shown in figure 3, due to step
Rapid 301~step 305 is substantially the same manner as Example 1, be not explained herein, only to the step 306 after replacement to step
Rapid 308 explain it is as follows：
In step 306, when elevator belt carries descending from top to bottom, apparatus for controlling elevator records elevator in center band second
The output torque of traction machine when between edge and the first edge, and when calculating descending traction machine pass through center band when average output
Torque。
In step 307, the coefficient of balance of elevator is calculated, specific formula is：
In step 308, according to step 3055 and the result of step 307, the average value of the two is taken, it is flat as final elevator
Weigh coefficient, formula is：
。
Although the foregoing describing the embodiment of the present invention, those skilled in the art in the art should manage
Solution, these are merely illustrative of, and can make various changes or modifications to these embodiments, without departing from the principle of the present invention
And essence.The scope of the present invention is only limited by the claims that follow.
Claims (2)
1. a kind of detection method of balance coefficient of elevator, it is characterised in that：Comprise the following steps：
Step 1：The center of elevator hoistways depth direction is determined, extends to be formed with one fixed width to both sides above and below the center
Center band, the center band has the first edge and the second edge；
Step 2：When elevator no-load is up from bottom to the top, apparatus for controlling elevator records elevator at the edge of center band first and the
The output torque of traction machine when between two edges, and when calculating up traction machine pass through center band when average output torque T1；
Step 3：When elevator no-load is descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second and the
The output torque of traction machine when between one edge, and when calculating descending traction machine pass through center band when average output torque T2；
Step 4：When elevator belt carries up from bottom to the top, apparatus for controlling elevator record elevator at the edge of center band first and
The output torque of traction machine when between the second edge, and when calculating up traction machine pass through center band when average output torque
T3；
Step 5：The value calculated using step 2~4, calculates the coefficient of balance K of elevator1, specific formula is：
K1=λ × (T1+T2)/(2×(T1-T3))
In formula, λ is California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying；
Step 6：When elevator belt carries descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second and the
The output torque of traction machine when between one edge, and when calculating descending traction machine pass through center band when average output torque T4；
Step 7：Calculate the coefficient of balance K of elevator2, specific formula is：
K2=λ × (T1+T2)/(2×(T2-T4))
Step 8：According to step 5 and the result of step 7, the average value of the two is taken, final balance coefficient of elevator K, formula is used as
For：
K=(K1+K2)/2。
2. the detection method of balance coefficient of elevator as claimed in claim 1, it is characterised in that：Step 4 and step 5 are replaced with：
Step 4：When elevator belt carries descending from top to bottom, apparatus for controlling elevator records elevator at the edge of center band second and the
The output torque of traction machine when between one edge, and when calculating descending traction machine pass through center band when average output torque T4；
Step 5：The value calculated using step 2~5, calculates the coefficient of balance K of elevator2, specific formula is：
K2=λ × (T1+T2)/(2×(T2-T4))
In formula, λ is California bearing ratio, i.e., weight divided by the ratio of elevator payload ratings with known object in car when carrying.
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| CN106395535B (en) * | 2016-11-18 | 2018-09-07 | 日立楼宇技术（广州）有限公司 | A kind of acquisition methods and device of balance coefficient of elevator |
| CN106348117A (en) * | 2016-11-18 | 2017-01-25 | 广州日滨科技发展有限公司 | Calculation method and device of elevator equilibrium coefficient |
| CN108584618A (en) * | 2018-06-12 | 2018-09-28 | 深圳市特种设备安全检验研究院 | The test device and test method of composite steel band equlvalent coefficient of friction |
| 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 |
| CN111717752B (en) * | 2020-06-18 | 2022-03-01 | 深圳市质量安全检验检测研究院 | Method, apparatus, storage medium and device for checking braking performance of elevator brake |
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| JP2000238969A (en) * | 1999-02-19 | 2000-09-05 | Hitachi Building Systems Co Ltd | Balance point adjusting method for elevator car |
| CN101226096A (en) * | 2008-02-02 | 2008-07-23 | 王健 | Method for measuring torsion of elevator balancing coefficient as well as test device thereof |
| JP2010208772A (en) * | 2009-03-09 | 2010-09-24 | Toshiba Elevator Co Ltd | Elevator |
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Effective date of registration: 20220110 Address after: 110000 No. 37, Shiji Road, Dongling District, Shenyang City, Liaoning Province Patentee after: Shenyang blue light new generation technology Co.,Ltd. Address before: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 37 Patentee before: SHENYANG BLUELIGHT AUTOMATIC TECHNOLOGY CO.,LTD. |