CN105460723A - Method, apparatus and system for sensing balance coefficient of elevator and engineering machine - Google Patents
Method, apparatus and system for sensing balance coefficient of elevator and engineering machine Download PDFInfo
- Publication number
- CN105460723A CN105460723A CN201510967145.3A CN201510967145A CN105460723A CN 105460723 A CN105460723 A CN 105460723A CN 201510967145 A CN201510967145 A CN 201510967145A CN 105460723 A CN105460723 A CN 105460723A
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- China
- Prior art keywords
- elevator
- current value
- preset range
- balance coefficient
- equilibrium factor
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Classifications
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Abstract
The invention relates to the filed of control and discloses a method, apparatus and system for sensing a balance coefficient of an elevator and an engineering machine. The method comprises: determining a current value of a counter electromotive force of an elevator motor; judging whether the current value exceeds a first predetermined range; and under the circumstance that the current value exceeds the first predetermined range, calculating the balance coefficient of the elevator. By means of the technical solution, a relation of the current value of the counter electromotive force of the motor to the first predetermined range is taken as a condition for calculating the balance coefficient; as the calculation of the balance coefficient is triggered by means of a directly proportional relation of the current value of the counter electromotive force to the balance coefficient, a balance coefficient exception problem can be found out immediately, and therefore, a case that a passenger feels uncomfortable while taking the elevator due to a poor balance coefficient is avoided, the influence of damage of elevator accessories on the service life of the elevator is prevented, and people hurting events caused by uncontrollable running of the elevator due to running in a severe environment for a long time also are avoided. Meanwhile, a field operator can diagnose faults of elevator balance and the like conveniently.
Description
Technical field
The present invention relates to control field, particularly, relate to a kind of balance coefficient of elevator method for detecting, equipment, system and construction machinery and equipment.
Background technology
The type of drive of elevator has tractive driving, forces the various ways such as driving, hydraulic-driven, and wherein tractive driving is that modem elevator applies the most general type of drive.The car of towed elevator and counterweight hang on the both sides of traction sheave respectively by steel rope, and the gravity of car and counterweight makes traction steel-cable be pressed in the grooving of traction sheave.Due to the friction force between the grooving of traction sheave and traction steel-cable when electrical motor rotates, driving steel rope that car and counterweight are opposed should move, car in hoistway along guide rail up-and-down movement.Equilibrium factor is that traction-type drives the important performance indexes of elevator, and introducing counterweight can the weight of partial balancing car and car internal burden, and the load that traction motor is run alleviates.Size due to car internal burden is often change, and has fixed after focusing on elevator Installation and Debugging, can not change at any time, therefore, needs to arrange a suitable equilibrium factor and is in close to desirable state of equilibrium to make the operation of elevator.
Current equilibrium factor all completes when product export is arranged, and because of factors such as market personalizations, user may at later product interior decoration, and the reasons such as sedan-chair top decoration change the weight of cars self, thus has influence on the balance of elevator.Do not have the later stage to monitor to balance coefficient of elevator in the market, equilibrium factor is to the safety of elevator, and efficiency, life-span and comfort have impact.Equilibrium factor deviation, reduces lift towing power, increases the skidding amount between hoist ropes and traction sheave, causes the life-span of reducing hoist ropes and traction sheave.Equilibrium factor deviation, counterweight-side is inconsistent with cage side amount of unbalance and design parameters, so when elevator startup, elevator output torque and actual demand moment inconsistent, elevator passenger when starting is caused in car, to produce the sensation of downslide or upper punch, the so-called exactly car that slips.Also can produce motor simultaneously and impact, affect the life-span of elevator components.If what cause because equilibrium factor deviation is excessive when passenger comes in and goes out car slips car, the high risk of shearing also can be produced to passenger.
For the problems referred to above, in prior art, there is no good solution.
Summary of the invention
The object of this invention is to provide a kind of balance coefficient of elevator method for detecting, equipment, system and construction machinery and equipment, this balance coefficient of elevator method for detecting, electric life controller and elevator effectively can detect balance coefficient of elevator, carry out early warning to equilibrium factor deviation.
To achieve these goals, the invention provides a kind of balance coefficient of elevator method for detecting, the method comprises: the current value determining the counter electromotive force of elevator motor; Judge whether described current value exceeds the first preset range; And when described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
Correspondingly, present invention also offers a kind of balance coefficient of elevator detection equipment, it is characterized in that, this equipment comprises: receiving device, for receiving the current value of the counter electromotive force of elevator motor; Control setup, for judging whether described current value exceeds the first preset range; And when described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
Correspondingly, present invention also offers a kind of balance coefficient of elevator detecting system, this system comprises: current measuring device, for measuring the current value of the counter electromotive force of elevator motor; And above-described balance coefficient of elevator detection equipment.
Correspondingly, present invention also offers a kind of construction machinery and equipment, this project machinery comprises above-described balance coefficient of elevator detecting system.
Pass through technique scheme, utilize the current value of the counter electromotive force of motor and the relation of the first preset range as the condition of calculated equilibrium coefficient, trigger equilibrium factor by the current value of counter electromotive force and the proportional relation of equilibrium factor to calculate, can Timeliness coverage equilibrium factor abnormal problem, prevent equilibrium factor difference from causing passenger to take uncomfortable, avoid damaging elevator accessory affecting elevator service life, elevator is avoided to run in the presence of a harsh environment for a long time, its the uncontrollable operation caused, causes the event of hurting sb.'s feelings.Field staff can also be facilitated the diagnosis of the fault such as elevator balanced simultaneously.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the balance coefficient of elevator method for detecting diagram of circuit that example embodiment of the present invention provides;
Fig. 2 is the balance coefficient of elevator method for detecting diagram of circuit that another example embodiment of the present invention provides;
Fig. 3 is the block diagram of balance coefficient of elevator detection equipment provided by the invention; And
Fig. 4 is the block diagram of balance coefficient of elevator detecting system provided by the invention.
Description of reference numerals
30 balance coefficient of elevator detection equipment 301 receiving devices
302 control setup 20 current measuring devices.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Fig. 1 is the balance coefficient of elevator method for detecting diagram of circuit that example embodiment of the present invention provides.As shown in Figure 1, a kind of balance coefficient of elevator method for detecting that embodiment of the present invention provides, the method can comprise:
Step 101: the current value receiving the counter electromotive force of elevator motor;
Step 102: judge whether described current value exceeds the first preset range; And
Step 103: when described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
Counter electromotive force for elevator motor can be understood like this: elevator balanced in order to make, elevator needs to utilize counterweight to balance the weight of lift car, thus when lift car is unloaded or fully loaded, in order to keep the balance between counterweight and car, the rotation of the motor that maintenance counterweight and car balance will form counter electromotive force.The current value of counter electromotive force generally gathers after opening envelope star contactor, elevator brake.One of ordinary skill in the art will readily recognize that the equilibrium factor that can be calculated elevator by this counter electromotive force current value.In other words, counter electromotive force can as the reference identification of equilibrium factor, when the current value of counter electromotive force exceeds a preset range (such as exceeding 5% or 10% of normal electrical flow valuve), can think that equilibrium factor also may exceed specialized range (in such as " elevator surveillance inspection procedure " 8.3.1 article clear stipulaties balance coefficient of elevator should between 0.4-0.5).
In embodiments, can, according to the relation between the current value of counter electromotive force and equilibrium factor, the scope of balance coefficient of elevator (such as, the 0.4-0.5) scope to the current value of counter electromotive force be utilized to set.Thus when the current value of counter electromotive force exceeds the scope of setting, equilibrium factor can be judged also beyond predetermined scope.Correspondingly, accurate in order to ensure judged result, after determining that the current value of counter electromotive force exceeds preset range, can calculate equilibrium factor according to the current value of counter electromotive force.Or, can calculate to equilibrium factor the effect obtaining dual test by the method for other calculated equilibrium coefficients.In embodiments, can by following formula (1) calculated equilibrium coefficient:
K＝(W-P)/Q(1)
Wherein, K is equilibrium factor, and W is load weight, and P is car deadweight, and Q is the rated load of car.
After calculating equilibrium factor, can judge whether calculated equilibrium factor exceeds preset range (such as, 0.4-0.5).When calculated equilibrium factor exceeds preset range, can determine that elevator exists fault, answer alarm and stop elevator.
In embodiments, said method can also comprise: after determining elevator faults, and generate failure code, wherein said failure code is associated with the deviation size between calculated equilibrium factor and the preset range of equilibrium factor.Such as, according to the end points deviation of the equilibrium factor calculated and preset range, fault can be divided into multiple grade, each grade is corresponding a kind of failure code respectively.Such as, suppose that the equilibrium factor calculated is 0.42, and predetermined equilibrium factor scope is 0.45-0.5, then end points 0.45 deviation of the equilibrium factor calculated and preset range is 0.03, and the failure code that can arrange corresponding deviation 0.03 is B; For another example, suppose that the equilibrium factor calculated is 0.39, and predetermined equilibrium factor scope is 0.45-0.5, then end points 0.45 deviation of the equilibrium factor calculated and preset range is 0.06, and the failure code that can arrange corresponding deviation 0.06 is A.The larger then failure condition of deviation that those skilled in the art know the end points of equilibrium factor and the preset range calculated is more serious, can according to different failure condition determination processing modes by the failure code corresponding to different deviate.Such as, for failure code A, while can selecting to carry out alarm, elevator is shut down; For failure code B, can reporting fault code, the simultaneously operation of maintenance elevator.For the situation that elevator is shut down, elevator operation can be recovered after meeting preset range at the artificial calculated equilibrium coefficient determination equilibrium factor that overhauls also again.
It should be noted that, the method that embodiment of the present invention provides can regularly or in response to triggering be carried out, and can join in apparatus for controlling elevator with the form of program, can need according to system and enable or disable.
Fig. 2 is the balance coefficient of elevator method for detecting diagram of circuit that another example embodiment of the present invention provides;
Step 201: be confirmed whether to enable detecting function.Start to perform detection process after confirmation detecting function is enabled.As not enabled, then flow process terminates.
Step 202: to judge in the fixed cycle whether executed or performed detection process by triggering.Can carry out providing continuous print to detect result according to the fixed cycle to the detecting of balance coefficient of elevator and guarantee that elevator normally runs, also can perform detecting in response to triggering simultaneously, to detect as required, provide and detect mode flexibly.When judging there is no executed in the fixed cycle or performed detection process by triggering, then go to step 203 continuation flow processs; Otherwise flow process terminates.
Step 203: release envelope star contactor.Envelope star contactor is at input three lead-in wire of release position meeting short circuit motor, when car is unloaded or underloading, envelope star contactor unclamps band-type brake when being in release position, at this moment heavier the falling downwards with free falling body state of Elevator weight sensor and car are upwards, drive traction motor rotates, permanent-magnet synchronous traction motor is equivalent to electrical generator when rotating by External Force Acting, and the power consumption that traction motor produces falls by the C/LOOP that envelope star wire or resistance are formed.When machine torque and motor electromagnetic torque phase balance, namely traction motor can travel at the uniform speed.Envelope star contactor is applied to elevator between this principle as protection device for over-speed ascending exactly.
Step 204: open drg.Elevator brake can produce bi-directional electromagnetic thrust when being energising, and braking mechanism and motor rotating part are departed from, and when power-off is opened, electromagnetic force disappears, and under adding the effect of retarding spring pressure outside, forms the frictin braek of dead electricity braking.
Step 205: the current value measuring counter electromotive force.Wherein, the measurement of the current value of counter electromotive force can be undertaken by the current measuring device be connected with traction motor item.After obtaining the current value of counter electromotive force, go to step 206 and judge.
Step 206: judge that whether current value is at preset range.When current value is at preset range, then can determine that equilibrium factor is also at the preset range of equilibrium factor, program step can terminate; When current value is not at preset range, then need to forward step 207 to, equilibrium factor is calculated.
Step 207: calculated equilibrium coefficient.It should be noted that, those skilled in the art know the method for various calculated equilibrium coefficient, and can adopt multiple method calculated equilibrium coefficient in this, concrete computation process repeats no more.Step 208 can be forwarded after calculating equilibrium factor to judge.
Step 208: judge that whether equilibrium factor is at preset range.When equilibrium factor is at preset range, then can determine elevator safety, flow process can terminate; Otherwise, if equilibrium factor exceeds preset range, then determine elevator faults, can step 209 be forwarded to.
Step 209: the judged result according to step 208 generates failure code, such as, failure code A or B.
Fig. 3 is the block diagram of balance coefficient of elevator detection equipment provided by the invention.As shown in Figure 3, the balance coefficient of elevator detection equipment 30 that embodiment of the present invention provides can comprise: receiving device 301, for receiving the current value of the counter electromotive force of elevator motor; Control setup 302, for judging whether described current value exceeds the first preset range; And when described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
In embodiments, control setup 301 can also be used for judging whether calculated equilibrium factor exceeds the second preset range; And work as calculated equilibrium factor when exceeding described second preset range, determine described elevator faults.Control setup 301 can also be used for after described failure determination device determines described elevator faults, and generate failure code, wherein said failure code is associated with the deviation size between calculated equilibrium factor with described second preset range.Those skilled in the art can know, and control setup 301 can utilize various equilibrium factor method of calculating calculated equilibrium coefficient of the prior art.
Fig. 4 is the block diagram of balance coefficient of elevator detecting system provided by the invention.A kind of balance coefficient of elevator detecting system that embodiment of the present invention provides can comprise: current measuring device 20, for measuring the current value of the counter electromotive force of elevator motor; And above-mentioned balance coefficient of elevator detection equipment 30.In addition, balance coefficient of elevator detecting system provided by the invention can also comprise warning device (not shown), such as, can by the fault of different sound or light prompt different brackets, thus prompting elevator mainte-nance personnel processes elevator faults.
Correspondingly, the present invention also provides a kind of construction machinery and equipment comprising above-mentioned balance coefficient of elevator detecting system, such as, and lifting machinery.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a balance coefficient of elevator method for detecting, is characterized in that, the method comprises:
Receive the current value of the counter electromotive force of elevator motor;
Judge whether described current value exceeds the first preset range; And
When described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
2. method according to claim 1, is characterized in that, the method also comprises:
Judge whether the equilibrium factor calculated exceeds the second preset range; And
When calculated equilibrium factor exceeds described second preset range, determine described elevator faults.
3. method according to claim 2, is characterized in that, described second preset range is 0.4-0.5.
4. method according to claim 1, is characterized in that, the method also comprises:
After determining described elevator faults, generate failure code, wherein said failure code is associated with the deviation size between calculated equilibrium factor with described second preset range.
5. the method any one of claim 1-4 described in claim, is characterized in that, returning method comprises and calculates described equilibrium factor or equilibrium factor according to following formulae discovery according to described current value:
K＝(W-P)/Q
Wherein, K is equilibrium factor, and W is load weight, and P is car deadweight, and Q is the rated load of car.
6. a balance coefficient of elevator detection equipment, is characterized in that, this equipment comprises:
Receiving device, for receiving the current value of the counter electromotive force of elevator motor;
Control setup, for judging whether described current value exceeds the first preset range; And when described current value exceeds described first preset range, calculate the equilibrium factor of described elevator.
7. equipment according to claim 6, is characterized in that, described control setup is also for judging whether calculated equilibrium factor exceeds the second preset range; And work as calculated equilibrium factor when exceeding described second preset range, determine described elevator faults.
8. equipment according to claim 7, is characterized in that, described second preset range is 0.4-0.5.
9. equipment according to claim 6, it is characterized in that, described control setup is also for after determining described elevator faults at described failure determination device, generate failure code, wherein said failure code is associated with the deviation size between calculated equilibrium factor with described second preset range.
10. the equipment any one of claim 6-9 described in claim, is characterized in that, described control setup calculates described equilibrium factor or equilibrium factor according to following formulae discovery according to described current value:
K＝(W-P)/Q
Wherein, K is equilibrium factor, and W is load weight, and P is car deadweight, and Q is the rated load of car.
11. 1 kinds of balance coefficient of elevator detecting systems, is characterized in that, this system comprises:
Current measuring device, for measuring the current value of the counter electromotive force of elevator motor; And
Balance coefficient of elevator detection equipment any one of claim 6-10 described in claim.
12. 1 kinds of construction machinery and equipments comprising balance coefficient of elevator detecting system according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967145.3A CN105460723A (en) | 2015-12-21 | 2015-12-21 | Method, apparatus and system for sensing balance coefficient of elevator and engineering machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510967145.3A CN105460723A (en) | 2015-12-21 | 2015-12-21 | Method, apparatus and system for sensing balance coefficient of elevator and engineering machine |
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| CN105460723A true CN105460723A (en) | 2016-04-06 |
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| CN201510967145.3A Pending CN105460723A (en) | 2015-12-21 | 2015-12-21 | Method, apparatus and system for sensing balance coefficient of elevator and engineering machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824888A (en) * | 2020-08-13 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
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| CN104787628A (en) * | 2015-02-15 | 2015-07-22 | 徐田英 | Integrated elevator control system provided with safety system |
| CN105540370A (en) * | 2015-12-17 | 2016-05-04 | 中联重科股份有限公司 | Elevator safety monitoring device, system and method, and elevator |
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| JP2012056704A (en) * | 2010-09-08 | 2012-03-22 | Toshiba Elevator Co Ltd | Elevator device |
| CN202321851U (en) * | 2011-11-04 | 2012-07-11 | 上海微频莱机电科技有限公司 | Elevator self-rescue system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111824888A (en) * | 2020-08-13 | 2020-10-27 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
| CN111824888B (en) * | 2020-08-13 | 2022-03-01 | 苏州汇川技术有限公司 | Elevator balance coefficient detection method and device, elevator and computer storage medium |
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Application publication date: 20160406 |