CN104401834A - Detection device and method for brake force of elevator traction machine - Google Patents
Detection device and method for brake force of elevator traction machine Download PDFInfo
- Publication number
- CN104401834A CN104401834A CN201410676641.9A CN201410676641A CN104401834A CN 104401834 A CN104401834 A CN 104401834A CN 201410676641 A CN201410676641 A CN 201410676641A CN 104401834 A CN104401834 A CN 104401834A
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- Prior art keywords
- towing machine
- elevator
- machine
- electric life
- traction machine
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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
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a detection device and method for brake force of an elevator traction machine. The device comprises an elevator controller, a traction machine, at least two brakes, an elevator cage, an elevator counterweight, an elevator driving frequency converter and an encoder, wherein the brakes are arranged on the traction machine; the elevator driving frequency converter is connected with the traction machine; the encoder is arranged on the traction machine and can be used for monitoring whether the traction machine rotates; both the elevator driving frequency converter and the encoder are electrically connected with the elevator controller. Whether the brake force of the traction machine reaches the standard can be automatically detected to prevent safety accidents such as slipping caused by insufficient brake force of the traction machine.
Description
Technical field
The present invention relates to Lift car type elevator field, a kind of method being specifically related to elevator traction machine band-type brake force checking device and utilizing this device to detect elevator traction machine band-type brake power, may be used for the cage lifter that various towing machine drives.
Background technology
In recent years, in the use of Lift car type elevator, due to problems such as drg detection signal fault and band-type brake power deficiencies, there is more safety misadventure.
Summary of the invention
The present invention seeks to: for the problems referred to above, the invention provides a kind of elevator traction machine band-type brake force checking device, additionally provide the method utilizing this device to detect elevator traction machine band-type brake power, to stop the safety misadventure caused because towing machine band-type brake power is not enough simultaneously.
Technical scheme of the present invention is: a kind of elevator traction machine band-type brake force checking device, comprise electric life controller, towing machine, at least two drgs, lift car and the elevator counterweight be loaded on this towing machine, also comprise the elevator drive frequency converter that is connected with described towing machine and to be loaded on described towing machine and can to monitor the coder whether towing machine rotate, described elevator drive frequency converter and coder are all electrically connected with described electric life controller.
As preferably, described drg is altogether two.
As preferably, the weight of described elevator counterweight deducts the weight of described lift car, equals 50% of described lift car nominal payload.
Utilize above-mentioned elevator traction machine band-type brake force checking device to detect a method for elevator traction machine band-type brake power, comprise the following steps:
It is out of service that a, electric life controller control lift car, and close Room door and summon function;
B, terraced controller, by the releasing of brake of on towing machine, make the up power applied towing machine close to the force value of towing machine nominal torque; Whether encoders monitor towing machine rotates, and monitor signal is fed back to electric life controller, and monitoring towing machine has rotation, then directly enter failsafe state, and elevator is out of service; If monitor towing machine not rotate, then enter next step;
C, elevator drive frequency converter apply a certain size ascending current to towing machine, whether encoders monitor towing machine rotates, and monitor signal is fed back to electric life controller, if monitor towing machine have rotation, then directly enter failsafe state, elevator is out of service; If monitor towing machine not rotate, then enter next step;
D, electric life controller control that drg power-off of unclamping in above-mentioned steps b and locking towing machine, then control another releasing of brake of towing machine, and carry out the detection of step b and step c;
E, as above, each drg unclamped one by one on described towing machine detects, until all detected by all drgs on towing machine.。
As preferably, in described step c, elevator drive frequency converter is 10% ~ 50% of rated current to the ascending current that towing machine applies, more preferably 30%.
Advantage of the present invention is: whether the present invention can detect towing machine band-type brake power automatically up to standard, slips the safety misadventures such as car with what stop to cause because towing machine band-type brake power is not enough.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the framing member figure of this elevator traction machine band-type brake of the present invention force checking device;
Wherein: 1-electric life controller, 2-elevator drive frequency converter, 3-coder, 4-towing machine, 5-drg, 6-lift car, 7-elevator counterweight.
Detailed description of the invention
Fig. 1 is the structure diagram of this elevator traction machine band-type brake of the present invention force checking device, it comprises electric life controller 1, towing machine 4, the drg 5 be loaded on towing machine 4, lift car 6 and elevator counterweight 7, in order to improve the safety of elevator, the quantity of described drg 5 is generally at least two (being generally two), like this when after one of them brake failure, also have other brake operation.
The key improvements of the present embodiment is: this detecting device also comprises the elevator drive frequency converter 2 that is connected with described towing machine 4 and to be loaded on described towing machine 4 and can to monitor the coder 3 whether towing machine rotate, and described electric life controller 1, elevator drive frequency converter 2 and coder 3 are all electrically connected with described electric life controller.
The weight of described elevator counterweight 7 deducts the weight of described lift car 6, approximate greatly 50% of described lift car 6 nominal payload, i.e. weight+payload ratings/2 (this is Lift car type elevator common technology means) of the weight ≈ elevator cage of elevator counterweight.
Utilize this elevator traction machine of the present embodiment band-type brake force checking device as follows to the method detecting elevator traction machine band-type brake power:
(2:00 AM of such as every day is to 3 points for the idle period that a, selected some elevators in a day run, certainly, concrete selection in which period, can artificially set), when (as in half an hour or in one hour), elevator did not carry out summoning operation within a certain period of time, electric life controller 1 is open detection function automatically.Said " idle period that elevator runs ", refer to the offpeak period of this elevator operation under normal circumstances, its operation idle period of different elevators is not identical yet, and the object so done is not affect the normal use of people to elevator, and occurs elevator accident when elevator can be avoided to detect.
Electric life controller 1 is automatically after open detection function, and it is out of service that electric life controller 1 controls lift car 6, and closes Room door and summon function.
That is, when elevator at 2:00 AM in 3 these time periods, if exceed half an hour not run, then electric life controller 1 open detection function automatically, control lift car 6 (generally first control make again after elevator cage operation to top layer its out of service) out of service, and close Room door and summon function.
During in order to avoid detecting, elevator accident occurring, before open detection function, whether having people or article in best detection lift car, when detecting in lift car as blank state, then open detection function, enters step b afterwards.
On towing machine 4 one drg 5 (referred to herein as first drg 5) unclamps by b, terraced controller 1, and all the other drgs are still in power-off locking state.Because the weight of elevator counterweight 7 deducts the weight of described lift car 6, approximate greatly 50% of described lift car 6 nominal payload, so the up power now applied towing machine 4 is close to the force value of towing machine 4 nominal torque.Whether coder 3 is monitored towing machine 4 and is rotated, if monitor towing machine 4 have rotation, then directly enter failsafe state, elevator is out of service.If monitor towing machine 4 not rotate, then enter next step.
C, elevator drive frequency converter 2 pairs of towing machines 4 apply the ascending current of a certain size (can artificially set), and the ascending current that now this elevator drive frequency converter 2 pairs of towing machines 4 apply is generally 10 ~ 50% of towing machine 4 rated current, and optimum is 30%.Whether coder 3 is monitored towing machine 4 and is rotated, and monitor signal is fed back to electric life controller 1, and this monitoring result is recorded by electric life controller 1 simultaneously, if monitor towing machine 4 have rotation, then directly enter failsafe state, elevator is out of service.If monitor towing machine 4 not rotate, then enter next step;
D, electric life controller 1 control that drg 5 power-off of unclamping in above-mentioned steps b and locking towing machine 3, then another drg 1 (referred to herein as second drg) controlling towing machine 4 unclamps, and carry out the detection of step b and step c;
E, as above cycle detection, unclamp the 3rd drg, the 4th drg successively ..., detect one by one, until all drgs 5 on towing machine 4 have all been detected.
The electrical structure of above-mentioned electric life controller 5, elevator drive frequency converter 2 and coder 3 is automatic field routine techniques, does not repeat them here.The realization of above-mentioned functions, needs to write corresponding control program in electric life controller 5.
Certainly, above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (6)
1. an elevator traction machine band-type brake force checking device, comprise electric life controller (1), towing machine (4), be loaded at least two drgs (5) on this towing machine (4), lift car (6) and elevator counterweight (7), it is characterized in that: also comprise the elevator drive frequency converter (2) be connected with described towing machine (4), and be loaded on the upper coder (3) also can monitored towing machine and whether rotate of described towing machine (4), and described drg (5), elevator drive frequency converter (2) and coder (3) are all electrically connected with described electric life controller (1).
2. elevator traction machine band-type brake force checking device according to claim 1, is characterized in that: described drg (5) is altogether two.
3. elevator traction machine band-type brake force checking device according to claim 1, it is characterized in that: the weight of described elevator counterweight (7) deducts the weight of described lift car (6), equals 50% of described lift car (6) nominal payload.
4. utilize claim 1 or the elevator traction machine band-type brake force checking device described in 2 or 3 to detect a method for elevator traction machine band-type brake power, it is characterized in that the method comprises the following steps:
It is out of service that a, electric life controller (1) control lift car (6), and close Room door and summon function;
A drg (5) on towing machine (4) is unclamped by b, electric life controller (1), makes the up power that applied towing machine (4) close to the force value of towing machine (4) nominal torque; Whether coder (3) monitoring towing machine (4) rotates, and monitor signal is fed back to electric life controller (1), and monitoring towing machine (4) has rotation, then directly enter failsafe state, elevator is out of service; If monitor towing machine (4) not rotate, then enter next step;
C, elevator drive frequency converter (2) apply a certain size ascending current to towing machine (4), whether coder (3) monitoring towing machine (4) rotates, and monitor signal is fed back to electric life controller (1), if monitor towing machine (4) have rotation, then directly enter failsafe state, elevator is out of service; If monitor towing machine (4) not rotate, then enter next step;
D, electric life controller (1) control that drg (5) power-off of unclamping in above-mentioned steps b and locking towing machine (3), another drg (1) controlling towing machine (4) again unclamps, and carries out the detection of step b and step c;
E, as above, each drg (5) unclamped one by one on described towing machine (4) detects, until all detected by all drgs (5) on towing machine (4).
5. method according to claim 4, is characterized in that: in described step c, and elevator drive frequency converter (2) is 10% ~ 50% of rated current to the ascending current that towing machine (4) applies.
6., in described step c, elevator drive frequency converter (2) is 30% of rated current to the ascending current that towing machine (4) applies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676641.9A CN104401834B (en) | 2014-11-21 | 2014-11-21 | Elevator traction machine band-type brake force checking device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676641.9A CN104401834B (en) | 2014-11-21 | 2014-11-21 | Elevator traction machine band-type brake force checking device and method |
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| Publication Number | Publication Date |
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| CN104401834A true CN104401834A (en) | 2015-03-11 |
| CN104401834B CN104401834B (en) | 2016-08-17 |
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| CN201410676641.9A Active CN104401834B (en) | 2014-11-21 | 2014-11-21 | Elevator traction machine band-type brake force checking device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105152065A (en) * | 2015-09-08 | 2015-12-16 | 广州广日电梯工业有限公司 | Elevator traction machine brake precision control system and method |
| CN105540375A (en) * | 2016-01-12 | 2016-05-04 | 贵州玖玖新能源有限公司 | Method for detecting moment of band-type brake of elevator |
| CN107215729A (en) * | 2017-07-13 | 2017-09-29 | 芜湖泰领信息科技有限公司 | Elevator internal contracting brake power automatic testing method |
| CN107792740A (en) * | 2017-10-27 | 2018-03-13 | 北京意智测控技术有限公司 | Elevator brake abatement detecting method, device, equipment and storage medium |
| CN110883768A (en) * | 2018-09-07 | 2020-03-17 | 合肥欣奕华智能机器有限公司 | Band-type brake servo motor control method and device and robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105152065A (en) * | 2015-09-08 | 2015-12-16 | 广州广日电梯工业有限公司 | Elevator traction machine brake precision control system and method |
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| CN105540375A (en) * | 2016-01-12 | 2016-05-04 | 贵州玖玖新能源有限公司 | Method for detecting moment of band-type brake of elevator |
| CN107215729A (en) * | 2017-07-13 | 2017-09-29 | 芜湖泰领信息科技有限公司 | Elevator internal contracting brake power automatic testing method |
| CN107792740A (en) * | 2017-10-27 | 2018-03-13 | 北京意智测控技术有限公司 | Elevator brake abatement detecting method, device, equipment and storage medium |
| CN107792740B (en) * | 2017-10-27 | 2019-04-16 | 王春梅 | Elevator brake abatement detecting method, device, equipment and storage medium |
| CN110883768A (en) * | 2018-09-07 | 2020-03-17 | 合肥欣奕华智能机器有限公司 | Band-type brake servo motor control method and device and robot |
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| CN104401834B (en) | 2016-08-17 |
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