CN108639885B - A kind of elevator load test electromagnet-friction combination broach two close cycles coupling control system and method - Google Patents
A kind of elevator load test electromagnet-friction combination broach two close cycles coupling control system and method Download PDFInfo
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- CN108639885B CN108639885B CN201810283525.9A CN201810283525A CN108639885B CN 108639885 B CN108639885 B CN 108639885B CN 201810283525 A CN201810283525 A CN 201810283525A CN 108639885 B CN108639885 B CN 108639885B
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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
- B66B5/0037—Performance analysers
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Abstract
The present invention provides a kind of elevator load test electromagnet-friction combination broach two close cycles coupling control system and method, including device for measuring force, friction-loaded device, electromagnetic loading device and controller.Device for measuring force includes tension sensor and torque sensor；Controller includes Chip Microcomputer A, single-chip microcontroller B, wireless module and human-computer interaction part etc..The Chip Microcomputer A for being mounted on lift car bottom detects the real load that wirerope is born by tension sensor, and to detection signal analysis and processing, sends pulling force signal by single-chip microcontroller B of the wireless module on lift car pedestal；Torque sensor detected value of the single-chip microcontroller B according to tension sensor and detection friction-loaded carries out closed loop, open loop, closed loop coupling control to friction-loaded device and electromagnetic loading device respectively.By loading opened loop controls and the coupling control of wirerope combination broach closed loop to friction-loaded closed-loop control and double electromagnetism, with meet loading capacity dynamic in elevator load test, quickly, accurately control requirement.
Description
Technical field
The invention belongs to elevator load technical field of research, and in particular to a kind of two close cycles coupling control system and method,
Electromagnet-friction combination broach two close cycles coupling control system and method are tested more particularly to a kind of elevator load, it is ensured that load is fast
It is fast, stable and accurate, meet the requirement for being applied to load on lift car.
Background technique
As China's economic maintains sustained and rapid growth, the pace of construction of urbanization is constantly accelerated, and real estate flourishes,
Unprecedented opportunities are provided to the development of elevator industry.By the end of the year 2014, China's elevator total amount up to 3,600,000, and
With annual 20% or so speed increase, elevator ownership, annual output, annual increment is the first in the world.To guarantee every electricity
Ladder can be reliable, accurate, stable operation, elevator maintenance company periodically will be maintained and test, i.e., have daily big
The elevator that the new peace of amount turns is tested, and most important one is exactly load test.Elevator load test has following several:
(1) traction capacity is tested: containing stop by force under coefficient of balance test, unloaded uplink test, static test, 125% rated load
Test.(2) safety test: contain limiter of speed-safety tongs action test.(3) operational reliability is tested: speed of service test, operation
Test, overload test etc..(4) overall performance detection confirmation: there are inspection, the leveling accuracy of the locking of layer door and electric safety device
Emergency set functional check etc. when detection, the measurement of noise, the inspection of warning device and power interruptions.
Traditional loading method has following several in load test: being loaded using standard test weight, this loading method expends
A large amount of manpower and material resources, and inefficiency.A kind of elevator meausring apparatus new detecting method (patent based on pliers type lever mechanism
Application number: 201410110460.X) utilize pliers type lever mechanism to apply clamping force to cage bottom, to realize in car bottom
Portion applies simulation load.But the method is static load, be only applicable to elevator it is static when load.A kind of elevator load test device
And its test method (number of patent application: 201510543829.0) accurately controls hydraulic mandril from top to bottom by hydraulic controller
Simulant elevator borne load is applied force to lift car, obtains the load data of elevator, is suitable for overload protection device and tries
It tests, coefficient of balance is tested and static traction test.But what it applied is static load, can not achieve and loads in elevator motion.
In conclusion traditional loading method expends a large amount of manpowers, to testing crew, there are security risks, cannot be in elevator
Apply constant load in movement.Seriously constrain the efficiency that elevator is examined, safeguarded.Therefore, it is badly in need of developing a set of precision height, property
Can set good, simultaneously for carrying convenient for the novel loading test of detection, improve the checkability of elevator, and to elevator can safely,
Stable operation has great meaning.
In legacy systems Collaborative Control research (one text of multi-machine system Collaborative Control research), adopted at first is parallel
Control mode is not in contact between that is, each controlled device, is individually controlled.Therefore when one of control object by
When interference, other objects can not be adjusted accordingly, and total tune control performance is vulnerable to interference, and precision of coordinated is not
It is high.Currently, this control mode is mainly used in the production practices not high to control accuracy requirement.
Tu Hongbin is in more one texts of motor VF coordinated control of winding article of no-station pole canopy sensor to unwinding motor, feeding electricity
Machine involves the Collaborative Control of motor and winding motor using master-slave control method.Feeding motor is main control, output speed
Degree determines the speed of service of other motors, to realize the Collaborative Control of entire multi-machine system.But occur when from motor
When disturbance, main motor can not but be adjusted, so that the concertedness of entire control system can be made to be affected.
Elevator load test is replaced to carry and is set, control method has a major impact its performance superiority and inferiority, and the present invention proposes one
Kind elevator load test electromagnet-friction combination broach two close cycles coupling control system and method.
Summary of the invention
The present invention is for traditional elevator load loading method labor intensive and there are security risk problems, tries in elevator load
On the basis of electrical verification magnetic friction combination is for support method and system, proposes that a kind of elevator load test electromagnet-friction combination broach is double and close
Loop coupling control system and method pass through the closed-loop control of friction-loaded device, electromagnetic loading device opened loop control and wirerope group
The comprehensive function of load closed loop coupling control is closed, adjustment, which is replaced to carry, sets total output loads, and control system is made to have preferable stablize
Property, rapidity and accuracy, meet the requirement for being applied to load on lift car, convenient for detection, and improve device work can
By property, the checkability of elevator is improved, and improves the safety and stability of elevator.
The technical scheme is that a kind of elevator load test electromagnet-friction combination broach two close cycles coupling control system
System, including device for measuring force, friction-loaded device, electromagnetic loading device and controller realize load dynamic in elevator load test
Stability contorting；
The device for measuring force includes tension sensor and torque sensor；The controller includes Chip Microcomputer A and single-chip microcontroller
B；
The tension sensor is mounted on one end that wirerope is connect with lift car bottom, and the Chip Microcomputer A is mounted on
Cage bottom, the torque sensor, single-chip microcontroller B, friction-loaded device and electromagnetic loading device, which are mounted on to replace to carry, sets pedestal
On；Single-chip microcontroller B respectively with Chip Microcomputer A, torque sensor, the friction control of friction-loaded device and electromagnetic loading device
Electromagnetic controller connection；
The real load of the tension sensor detection wirerope receiving is simultaneously transmitted to Chip Microcomputer A, the Chip Microcomputer A docking
The load signal analysis of receipts is handled, and sends pulling force signal to single-chip microcontroller B；Pulling force of the single-chip microcontroller B according to tension sensor
Signal and detect friction-loaded torque sensor detected value, carry out friction-loaded closed-loop control, electromagnetism load opened loop control and
The coupling control of wirerope combination broach closed loop；The single-chip microcontroller B passes through given anticipated load value of thrust and tension sensor institute
Wirerope upper pulling force measured directly is compared, if electromagnetism load controls electromagnetic controller tune without departing from rated value
The output torque of whole electromagnetic loading device；, whereas if electromagnetism load off-rating, then readjust torque divider, it is right
Friction-loaded pinpoints closed-loop control again, then loads opened loop control to electromagnetism.
In above scheme, the electromagnetic loading device includes electromagnetic loading device one and electromagnetic loading device two, the electricity
Magnetic loading device one and electromagnetic loading device two are magnetic powder brake.
In above scheme, the friction-loaded device includes friction plate and frictional disk.
In above scheme, the controller further includes wireless sending module and wireless receiving module；
The wireless sending module is mounted on lift car bottom；The wireless receiving module, which is mounted on to replace to carry, sets pedestal
On；Chip Microcomputer A sends pulling force signal by single-chip microcontroller B of the wireless module on lift car pedestal, and single-chip microcontroller B is by wirelessly connecing
Module is received to receive.
In above scheme, the controller further includes human-computer interaction part；
The human-computer interaction part is touch screen；Touch screen is for showing detection and control result.
A kind of control method for testing electromagnet-friction combination broach two close cycles coupling control system according to the elevator load,
The following steps are included:
The Chip Microcomputer A for being mounted on lift car bottom detects the practical load that wirerope is born by tension sensor
Lotus, and to detection signal analysis and processing, and the single-chip microcontroller B on lift car pedestal sends pulling force signal；
Torque sensor detected value of the single-chip microcontroller B according to tension sensor and detection friction-loaded, carries out friction and adds
Carry closed-loop control, double electromagnetism load opened loop control and the coupling control of wirerope combination broach closed loop；
The single-chip microcontroller B is pulled up by given anticipated load value of thrust and tension sensor institute wirerope measured directly
Power is compared, if electromagnetism load controls the output of electromagnetic controller adjustment electromagnetic loading device without departing from rated value
Torque；, whereas if electromagnetism load off-rating, then readjust torque divider, closed loop is pinpointed again to friction-loaded
Control, then to electromagnetism load opened loop control, realize to for carry set full payload dynamic control.
In above scheme, the friction-loaded closed control circuit includes friction control, friction-loaded device and torque
Sensor；The single-chip microcontroller B compared with one output valve of torque divider, show that torque distributes according to torque sensor measured value
Difference e 1 between the distributed torque of device one and torque sensor friction stopping device torque detected, according to described in e1 control
Friction control adjusts friction-loaded device output torque value.
In above scheme, double electromagnetism load opened loop controls include power-torque converter two, torque in single-chip microcontroller B
Distributor two, power-torque converter three and torque divider three and electromagnetic controller one, electromagnetic controller two, electromagnetism load
Device one and electromagnetic loading device two；
The single-chip microcontroller B compared with specified load, obtains specified load and draws according to the pulling force signal of tension sensor
Force snesor detects the difference e between lineoutofservice signal pull value, and passes through power-torque converter two and torque point according to e value size
Orchestration two controls the load output that electromagnetic controller one adjusts electromagnetic loading device one, passes through power-torque converter three and torque
Distributor three controls the load output that electromagnetic controller two adjusts electromagnetic loading device two.
Compared with prior art, the beneficial effects of the present invention are: the Chip Microcomputer A that the present invention is mounted on lift car bottom is led to
The real load that tension sensor detection wirerope is born is crossed, and to detection signal analysis and processing, by wireless module to elevator
Single-chip microcontroller B on carriage pedestal sends pulling force signal；Torque sensing of the single-chip microcontroller B according to tension sensor and detection friction-loaded
Device detected value respectively closes combined load on friction-loaded device and electromagnetic loading device progress closed loop, open loop and wirerope
Loop coupling control.Invention is based on power-torque converter and torque divider, passes through friction-loaded closed-loop control and steel
The double circle controling mode of cord load two close cycles coupling control, improves the stability, rapidity and accuracy of control system,
And then guarantee to replace to carry to set normal work, improve its working performance and reliability.
Detailed description of the invention
Fig. 1 is a kind of elevator load test electromagnet-friction combination load two close cycles coupling control system totality frame of the present invention
Figure.
Fig. 2 is elevator load test electromagnet-friction combination load two close cycles coupling control structure figure.
Fig. 3 is friction-loaded closed loop controlling structure figure.
Fig. 4 is wirerope combination broach two close cycles coupling control structure figure.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description, but protection scope of the present invention
It is not limited to this.
Fig. 1 show the one of elevator load test electromagnet-friction combination broach two close cycles coupling control system of the present invention
Kind embodiment, the elevator load test electromagnet-friction combination broach two close cycles coupling control system include device for measuring force, rub
Loading device, electromagnetic loading device and four part of controller composition are wiped, realizes load Dynamic Stability Control in elevator load test.
The device for measuring force includes tension sensor and torque sensor.The controller include Chip Microcomputer A, single-chip microcontroller B,
Sensor detection circuit, load control circuit, wireless module and human-computer interaction part (touch screen) etc..The elevator load test
Electromagnet-friction combination broach two close cycles coupling control system, installation site include lift car bottom and set pedestal for carrying.Institute
It states tension sensor and is mounted on one end that wirerope is connect with cage bottom, Chip Microcomputer A, wireless sending module are mounted on car bottom
Portion.Torque sensor, single-chip microcontroller B, wireless receiving module, rope withdrawing apparatus, friction-loaded device and the electromagnetic loading device
It is mounted on to replace to carry and set on pedestal.Single-chip microcontroller B respectively with Chip Microcomputer A, torque sensor, friction-loaded device friction control
And the electromagnetic controller connection of electromagnetic loading device.
The Chip Microcomputer A for being mounted on lift car bottom detects the real load that wirerope is born by tension sensor, and
To detection signal analysis and processing, by wireless module to setting single-chip microcontroller B on pedestal and send pulling force signal for carrying；Single-chip microcontroller B
Wireless receiving module receives, and the torque sensor detected value according to tension sensor and detection friction-loaded, respectively to friction
Loading device carries out closed-loop control, electromagnetic loading device opened loop control and the coupling control of wirerope combination broach closed loop.Simultaneously
Detection and the visualization of control result are realized by touch screen.
The electromagnetic loading device is magnetic powder brake, and realizes that its output loads controls by tension controller；It is described
Friction-loaded device includes friction plate and frictional disk, carries out load adjustment by servo motor.
The tension sensor selects ring type tension sensor/3T.The Chip Microcomputer A and single-chip microcontroller B use model
The microprocessor of STM32F429.The wireless sending module is with wireless receiving module selection E61-DTU-50 model without line number
Conduct electricity platform.The torque sensor selects the dynamic torque sensor of model SSM-Q513, range 0-5000N.m.The magnetic powder
Brake selects single shaft base formula magnetic powder brake of model FZ100.J/Y, torque range 50N.m.The friction plate uses
Mondeo ceramics anter, the frictional disk use the Mondeo front brake disk of disk diameter 300mm.The servo motor uses Delta B2
The motor of series, power 1kw, revolving speed 2000r/min, nominal torque 4.8N.m.
Realize that the touch screen realizes testing result visualization by touch screen in the human-computer interaction part.The touch screen
Select TFT LCD functional module.
As shown in Fig. 2, a kind of test electromagnet-friction combination broach two close cycles coupling control system according to the elevator load
Control method, comprising the following steps:
The Chip Microcomputer A for being mounted on lift car bottom detects the practical load that wirerope is born by tension sensor
Lotus, and to detection signal analysis and processing, and the single-chip microcontroller B on lift car pedestal sends pulling force signal；
Torque sensor detected value of the single-chip microcontroller B according to tension sensor and detection friction-loaded, carries out friction and adds
Carry closed-loop control, double electromagnetism load opened loop control and the coupling control of wirerope combination broach closed loop；
The single-chip microcontroller B is pulled up by given anticipated load value of thrust and tension sensor institute wirerope measured directly
Power is compared, if electromagnetism load controls the output of electromagnetic controller adjustment electromagnetic loading device without departing from rated value
Torque；, whereas if electromagnetism load off-rating, then readjust torque divider, closed loop is pinpointed again to friction-loaded
Control, then to electromagnetism load opened loop control, realize to for carry set full payload dynamic control.
The method is by loading opened loop control and its wirerope combination broach to friction-loaded closed-loop control and double electromagnetism
Closed loop coupling control, with meet elevator load test in loading capacity dynamic, quickly, accurately control requirement.E1 is torque point in Fig. 2
Difference between the distributed torque of orchestration one and torque sensor friction stopping device torque detected is adjusted using e1 as foundation
It saves friction control and adjusts friction stopping device output torque, realize friction-loaded closed-loop control.E indicates specified load and pulling force
Sensor detects the difference between lineoutofservice signal pull value, and according to e value size, dynamic controls electromagnetic controller one and Electromagnetic Control
Device two, and then the load output of electromagnetic loading device one and electromagnetic loading device two is adjusted, realize torque-force transducer and steel wire
Combination broach closed loop of restricting coupling control.
As shown in figure 3, the friction-loaded closed-loop control includes friction control, friction-loaded device and torque sensing
Device.The friction-loaded closed-loop control, single-chip microcontroller B is according to torque sensor measured value compared with one output valve of torque divider
Compared with obtaining the difference between the distributed torque of torque divider one and torque sensor friction stopping device torque detected
E1, the difference e1 according to the two controls the friction control, and then adjusts friction-loaded device output torque value.
Double electromagnetism load opened loop controls include power-torque converter two, torque divider two, power-torque converter
Three, torque divider three, electromagnetic controller one, electromagnetic controller two, electromagnetic loading device one, electromagnetic loading device two.It is described
Power-torque converter two, torque divider two, power-torque converter three and torque divider three, be soft in single-chip microcontroller B
Part programmed algorithm realizes that electromagnetic controller one and electromagnetic controller two are exported by single-chip microcontroller B and controlled, and then adjusts electromagnetism and add
Carry the output loads torque for setting one and electromagnetic loading device two.The single-chip microcontroller B according to the pulling force signal of tension sensor with
Specified load compares, and obtains the difference e between specified load and tension sensor detection lineoutofservice signal pull value, and according to e value
Size controls the load that electromagnetic controller one adjusts electromagnetic loading device one by power-torque converter two and torque divider two
Output controls the load that electromagnetic controller two adjusts electromagnetic loading device two by power-torque converter three and torque divider three
Lotus output.
As shown in figure 4, the wirerope combination broach two close cycles coupling control, including tension sensor, power-torque sensing
The parts such as device, double electromagnetism load opened loop control, friction-loaded closed-loop control.
The wirerope combination broach closed loop coupling control, the anticipated load value of thrust and pulling force given by touch screen pass
Sensor institute wirerope upper pulling force measured directly is compared, if electromagnetism load without departing from rated value, controls electromagnetism control
Device one processed, electromagnetic controller two, the further output torque for adjusting electromagnetic loading device one and electromagnetic loading device two；Instead
It readjusts torque divider first, then pinpoints closed loop again to friction-loaded if electromagnetism load off-rating
Control, finally again to electromagnetism load opened loop control, realize to for carry set full payload dynamic control.
Embodiment one
In the case where elevator load test requirements document is 1 ton of load condition, load loading procedure is to pass through steel wire when elevator rises
The rotation of rope band movable reel, reel drive friction-loaded device and electromagnetic loading device work connected to it, wherein friction-loaded
Device provides most of load, while carrying out dynamic compensation using electromagnetic loading device one and electromagnetic loading device two.According to
Lower formula, calculates drum speed:
υ=ω r
Wherein, υ is elevator rated speed, is 1.5m/s；ω is reel angular speed (rad/s)；R is reel radius, is
0.15m；N is drum speed (r/min).It is computed, drum speed n=95.54r/min.
According to following formula, and then calculate reel actual torque:
M=mgr
Wherein, m is load (kg)；G is acceleration of gravity, is 9.81m/s2；R is reel radius, is 0.15m；M is torque
(N·m).It is computed, requires in the load of elevator load test load as under 1 ton of load condition, reel actual torque is
1471.50N·m。
On the other hand, calutron magnetic powder brake has preferably stable output characteristics in torque 30N.m, therefore
Calutron load distributed controll is in 30N.m.Friction-loaded device precision is higher, and use close-loop control mode, have compared with
In high precision, comprehensively consider, set load distribution for carrying are as follows: the torque of friction-loaded device is 1450.50N.m, electromagnetism load dress
The torque for setting one is 21N.m, and the torque of electromagnetic loading device two is 0N.m.
Embodiment two
The present embodiment two and the difference of embodiment one are that elevator load test load is 1.25 tons.
In the case where elevator load test requirements document is 1.25 tons of load conditions, according to the above calculation method, reel actual torque is
1839.37N·m.Load distribution is set for carrying are as follows: the torque of friction-loaded device is 1800.37N.m, electromagnetic loading device one
Torque be 20N.m, the torque of electromagnetic loading device two is 19N.m.
Although not each embodiment only includes one it should be appreciated that this specification describes according to various embodiments
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope that they are not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change
It should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of elevator load tests electromagnet-friction combination broach two close cycles coupling control system, which is characterized in that including dynamometry
Device, friction-loaded device, electromagnetic loading device and controller；
The device for measuring force includes tension sensor and torque sensor；The controller includes Chip Microcomputer A and single-chip microcontroller B；
The tension sensor is mounted on one end that wirerope is connect with lift car bottom, and the Chip Microcomputer A is mounted on carriage
Bottom, the torque sensor, single-chip microcontroller B, friction-loaded device and electromagnetic loading device are mounted on to replace to carry and set on pedestal；It is single
The piece machine B electromagnetism with Chip Microcomputer A, torque sensor, the friction control of friction-loaded device and electromagnetic loading device respectively
Controller connection；
The real load of the tension sensor detection wirerope receiving is simultaneously transmitted to Chip Microcomputer A, and the Chip Microcomputer A is to received
Load signal analysis processing, and pulling force signal is sent to single-chip microcontroller B；Pulling force signal of the single-chip microcontroller B according to tension sensor
And the torque sensor detected value of detection friction-loaded, carry out friction-loaded closed-loop control, electromagnetism load opened loop control and steel wire
Combination broach closed loop of restricting coupling control；The single-chip microcontroller B is direct by given anticipated load value of thrust and tension sensor institute
The wirerope upper pulling force of measurement is compared, if electromagnetism load controls electromagnetic controller adjustment electricity without departing from rated value
The output torque of magnetic loading device；, whereas if electromagnetism load off-rating, then readjust torque divider, to friction
Load pinpoints closed-loop control again, then loads opened loop control to electromagnetism.
2. elevator load tests electromagnet-friction combination broach two close cycles coupling control system, feature according to claim 1
It is, the electromagnetic loading device includes electromagnetic loading device one and electromagnetic loading device two, one He of electromagnetic loading device
Electromagnetic loading device two is magnetic powder brake.
3. elevator load tests electromagnet-friction combination broach two close cycles coupling control system, feature according to claim 1
It is, the friction-loaded device includes friction plate and frictional disk.
4. elevator load tests electromagnet-friction combination broach two close cycles coupling control system, feature according to claim 1
It is, the controller further includes wireless sending module and wireless receiving module；
The wireless sending module is mounted on lift car bottom；The wireless receiving module is mounted on to replace to carry and set on pedestal；
For Chip Microcomputer A by wireless module to for the single-chip microcontroller B transmission pulling force signal set on pedestal is carried, single-chip microcontroller B passes through wireless receiving
Module receives.
5. elevator load tests electromagnet-friction combination broach two close cycles coupling control system, feature according to claim 1
It is, the controller further includes human-computer interaction part；
The human-computer interaction part is touch screen；Touch screen is for showing detection and control result.
6. elevator load test electromagnet-friction combination broach two close cycles coupling control described in a kind of -5 any one according to claim 1
The control method of system processed, which comprises the following steps:
The Chip Microcomputer A for being mounted on lift car bottom detects the real load that wirerope is born by tension sensor, and
To detection signal analysis and processing, and to setting single-chip microcontroller B on pedestal and send pulling force signal for carrying；
Torque sensor detected value of the single-chip microcontroller B according to tension sensor and detection friction-loaded, carries out friction-loaded and closes
Ring control, double electromagnetism load opened loop control and the coupling control of wirerope combination broach closed loop；
The single-chip microcontroller B by given anticipated load value of thrust and tension sensor institute wirerope upper pulling force measured directly into
Row compares, if electromagnetism load controls the output torque of electromagnetic controller adjustment electromagnetic loading device without departing from rated value；
, whereas if electromagnetism load off-rating, then readjust torque divider, closed-loop control is pinpointed again to friction-loaded,
Again to electromagnetism load opened loop control, realize to for carry set full payload dynamic control.
7. the controlling party of elevator load test electromagnet-friction combination broach two close cycles coupling control system according to claim 6
Method, which is characterized in that the friction-loaded closed-loop control includes friction control, friction-loaded device and torque sensor；Institute
Single-chip microcontroller B is stated according to torque sensor measured value compared with one output valve of torque divider, show that torque divider one divides
With the difference e 1 between torque and torque sensor friction stopping device torque detected, the friction control is controlled according to e1
Device adjusts friction-loaded device output torque value.
8. the controlling party of elevator load test electromagnet-friction combination broach two close cycles coupling control system according to claim 6
Method, which is characterized in that double electromagnetism load opened loop controls include power-torque converter two, torque divider two, power-torque
Converter three and torque divider three and electromagnetic controller one, electromagnetic controller two, electromagnetic loading device one and electromagnetism load
Device two；
The single-chip microcontroller B compared with specified load, show that specified load and pulling force pass according to the pulling force signal of tension sensor
Sensor detects the difference e between lineoutofservice signal pull value, and passes through power-torque converter two and torque divider according to e value size
Two control electromagnetic controllers one adjust the load output of electromagnetic loading device one, are distributed by power-torque converter three and torque
Device three controls the load output that electromagnetic controller two adjusts electromagnetic loading device two.
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| CN201810283525.9A CN108639885B (en) | 2018-04-02 | 2018-04-02 | A kind of elevator load test electromagnet-friction combination broach two close cycles coupling control system and method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696541A (en) * | 2004-05-14 | 2005-11-16 | 通用汽车公司 | Diagnostic method for a torque control of an electrically variable transmission |
| CN107445003A (en) * | 2017-08-01 | 2017-12-08 | 江苏省特种设备安全监督检验研究院 | Elevator load test combinations replace loading system and test method |
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- 2018-04-02 CN CN201810283525.9A patent/CN108639885B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696541A (en) * | 2004-05-14 | 2005-11-16 | 通用汽车公司 | Diagnostic method for a torque control of an electrically variable transmission |
| CN107445003A (en) * | 2017-08-01 | 2017-12-08 | 江苏省特种设备安全监督检验研究院 | Elevator load test combinations replace loading system and test method |
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