CN107792740B - Elevator brake abatement detecting method, device, equipment and storage medium - Google Patents
Elevator brake abatement detecting method, device, equipment and storage medium Download PDFInfo
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- CN107792740B CN107792740B CN201711018298.9A CN201711018298A CN107792740B CN 107792740 B CN107792740 B CN 107792740B CN 201711018298 A CN201711018298 A CN 201711018298A CN 107792740 B CN107792740 B CN 107792740B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000004590 computer program Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Classifications
-
- 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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
本发明公开了电梯制动失效检测方法、装置、设备以及存储介质，属于电梯技术领域，该技术方案针对曳引式电梯结构进行制动失效检测，电梯制动失效检测方法包括如下步骤：电梯曳引机对所述对重块连接的右部分曳引绳施加电力矩T’使电梯轿厢与对重块平衡。检测电梯制动器所受到的剪切力T。检测电梯制动对所述曳引机的正压力N。采用(T+T')/N的大小评估电梯制动器的制停能力。若T+T’小于或等于P‑D，则判定电梯制动失效。针对上述方法，本发明同时提供了相应装置、设备及存储介质。本发明用以解决现有的制动失效检测方法应用局限且实时性差的问题。
The invention discloses an elevator braking failure detection method, device, equipment and storage medium, belonging to the technical field of elevators. The hoisting machine applies an electric torque T' to the right part of the hoisting rope connected to the counterweight to balance the elevator car and the counterweight. Detect the shear force T on the elevator brake. The positive pressure N of the elevator braking to the traction machine is detected. Use (T+T')/N to evaluate the braking ability of elevator brakes. If T+T' is less than or equal to P-D, it is determined that the elevator brake is invalid. For the above method, the present invention also provides a corresponding apparatus, equipment and storage medium. The present invention is used to solve the problems of limited application and poor real-time performance of the existing brake failure detection method.
Description
Technical field
The present invention relates to elevator technology fields, and in particular to elevator brake abatement detecting method, device, equipment and storage
Medium.
Background technique
Conveying people and object of the high buildings and large mansions elevator as skyscraper with the fast development of economic society, in city
The vehicles of matter, usage amount is increasing, and while elevator is brought convenience to people's lives, safety is just to Guan Chong
It wants, elevator brake is the key components and parts for guaranteeing elevator safety, and failure cause has many aspects.
In recent years, with a large amount of uses of elevator, constantly occurred by the accident that elevator causes, elevator brake system is as electricity
The guarantee of the safety and reliability of ladder, failure will cause serious consequence.This requires fail to elevator brake system
Mode is probed into, and is checked the reason of may cause failure, and specific and comprehensive each link to brake checks,
To find the problem in time, guarantee the safe operation of elevator brake
There are the multinomial technologies about braking forces measuring in country's industry at present, but have the defects that certain.
The assessment and detection of the braking effect of existing brake are realized generally by detection brake sticking force detection: to horse
Up to while applying torque, whether detection host is rotated.It such as rotates, then it represents that band-type brake power is insufficient, if do not rotated, then it represents that
Band-type brake power is normal.
This detection scheme is mainly completed in special time period, and such as at night 12 points or so, and to guarantee elevator no-load,
It can guarantee the accuracy of detection.Therefore the shortcomings that this scheme is that real-time is poor, is limited bigger.
Therefore need that one kind is simple and effective, is not limited to external environment and real-time is high for the detection of brake fade
Method.
Summary of the invention
The purpose of the present invention is to provide elevator brake abatement detecting method, device, equipment and storage mediums, to solve
The problem of certainly existing brake fade detection method application limitation and real-time difference.
To achieve the above object, on the one hand the embodiment of the present invention provides a kind of elevator brake abatement detecting method, special
Sign is that this method carries out brake fade detection for traction elevator structure, and traction elevator structure includes hoist ropes, elevator
Traction machine, lift car, to pouring weight and elevator brake.
Traction machine is passed through in the middle part of hoist ropes, left and right ends are individually fixed in roof；Hoist ropes is divided into a left side by elevator traction machine
Right two parts；Lift car connects left half hoist ropes；Right half hoist ropes is connected to pouring weight；
Elevator brake is used to apply normal pressure to elevator traction machine；Wherein lift car self weight is P, elevator car loading
It is 0, is D to pouring weight weight.
Elevator brake abatement detecting method includes the following steps:
Elevator traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, puts down lift car with to pouring weight
Weighing apparatus.
Detect shearing force T suffered by elevator brake.
Elevator brake is detected to the normal pressure N of traction machine.
UsingSize assessment elevator brake stop ability.
If T+T ' is less than or equal to P-D, determine that elevator brake fails.
In one or more embodiments of first aspect, hoist ropes left end is fixed on roof by weighing device, electricity
G is weighed as when terraced carriage zero loadIt is unloaded, lift car traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, to be made
When lift car is with pouring weight is balanced, it is weighed as GBalance, presetting elevator traction ratio is β, and the preset payload ratings of elevator are E；It is then electric
The coefficient of balance of ladder are as follows:
In one or more embodiments of first aspect, right half traction of the lift car traction machine to being connected to pouring weight
Rope, which applies electric moment T ', controls lift car in the range of 0.45≤η≤0.50 with coefficient of balance η when balancing to pouring weight.
In one or more embodiments of first aspect, right half traction of the lift car traction machine to being connected to pouring weight
Rope, which applies electric moment T ', makes lift car and the coefficient of balance 0.4 when balancing to pouring weight.
Second aspect, the embodiment of the invention also provides a kind of elevator failure detection devices, and the device is for traction-type electricity
Terraced structure carries out brake fade detection, traction elevator structure include hoist ropes, elevator traction machine, lift car, to pouring weight with
And elevator brake.
Traction machine is passed through in the middle part of hoist ropes, left and right ends are individually fixed in roof.
Hoist ropes is divided into left and right two parts by elevator traction machine.
Lift car connects left half hoist ropes.
Right half hoist ropes is connected to pouring weight.
Elevator brake is used to apply normal pressure to elevator traction machine.
Wherein lift car self weight is P, and elevator car loading 0 is D to pouring weight weight.
Elevator traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, puts down lift car with to pouring weight
Weighing apparatus.
Elevator brake failure detection device includes:
Shear force detection module is configured to shearing force T suffered by detection elevator brake.
Positive-pressure detection module is configured to detection elevator brake to the normal pressure N of traction machine；
Stop capability evaluation module, is configured to useSize assessment elevator brake stop ability.
Brake fade determination module is configured to judge whether T+T ' is less than or equal to P-D, if then determining elevator brake
Failure.6, device as claimed in claim 5, which is characterized in that lift car traction machine is to the right half hoist ropes connected to pouring weight
Applying electric moment T ' controls lift car in the range of 0.45≤η≤0.50 with coefficient of balance η when balancing to pouring weight.
The third aspect, the embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage
On a memory and the computer program that can run on a processor, processor realize any implementation of first aspect when executing program
Elevator abatement detecting method provided by example.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program realizes elevator abatement detecting method provided by first aspect any embodiment when computer program is executed by processor.
The method of the present invention has the advantages that
Elevator brake abatement detecting method provided by the present invention is crossed the normal pressure of detection brake with shearing force and is passed through
Certain algorithm to achieve the effect that brake fade early warning and monitoring, this method calculate it is simple and effective, be not limited to external environment and
Real-time is high.
Detailed description of the invention
Fig. 1 is the flow diagram of elevator brake abatement detecting method provided by the embodiment of the present invention.
Fig. 2 is traction elevator structural schematic diagram provided by the embodiment of the present invention；
Fig. 3 is the structure composition block diagram of elevator brake failure detection device provided by the embodiment of the present invention.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
Caused by elevator brake failure mainly reduces as braking friction, and braking friction depends on brake
Normal pressure and brake are with the coefficient of friction between traction machine.As long as therefore detecting the normal pressure of brake with coefficient of friction
It can be achieved with brake fade early warning and monitoring.But since coefficient of friction is difficult directly to detect, the embodiment of the present invention passes through inspection
The normal pressure of survey brake is with shearing force and by certain algorithm to achieve the effect that brake fade early warning and monitoring.
The detailed process of the embodiment of the present invention is as shown in Figure 1.
Elevator brake abatement detecting method provided in an embodiment of the present invention carries out brake fade for traction elevator structure
Detection.
Wherein traction elevator structure as shown in Fig. 2, include hoist ropes, elevator traction machine, lift car, to pouring weight and
Elevator brake；
Traction machine is passed through in the middle part of hoist ropes, left and right ends are individually fixed in roof；Hoist ropes is divided into a left side by elevator traction machine
Right two parts；Lift car connects left half hoist ropes；Right half hoist ropes is connected to pouring weight；Elevator brake is used for elevator
Traction machine applies normal pressure.
Wherein lift car self weight is P, elevator car loading Q, Q=0 when unloaded, is D to pouring weight weight.Title in Fig. 2
Weight G, normal pressure N and shearing force T can be obtained by sensor.
Elevator brake abatement detecting method provided in an embodiment of the present invention includes the following steps:
S101, elevator traction machine make lift car and counterweight to the right half hoist ropes application electric moment T ' connected to pouring weight
Block balance；Elevator device can apply certain electric moment T ' to Elevator weight sensor side to assess drag friction in lift car zero load
Power FSliding。
Shearing force T suffered by S102, detection elevator brake；Braking friction F is assessed using T+T 'Sliding。
S103, elevator brake is detected to the normal pressure N of traction machine；Brake is by braking to the normal pressure N of traction sheave
What the deformation quantity of device contained spring was determined, the gap relationships of its size and brake are close；Settable sensor detection is just
Pressure.
S104, useSize assessment elevator brake stop ability；According to formula FSliding=μ × N can be obtained,
I.e. friction coefficient μ is force of sliding friction FSlidingThe ratio between with normal pressure N, friction coefficient μ is the key that assessment braking of brake ability refers to
Mark.
S105, judge whether T+T ' is less than or equal to P-D, be to execute S106, otherwise execute S107.
S106, then determine that elevator brake fails.Under normal circumstances, brake force (the namely force of sliding friction of brake
FSliding) it is to be far longer than car weight (P+Q) and the gravitational difference to pouring weight gravity D, i.e. stiction F.But with the time
Passage, leads to brake force F since variation has occurred in the normal pressure N or friction coefficient μ of brakeSlidingDecline, works as FSliding≤ F when
It waits, brake fade will be generated.When Q is 0, if then there is T+T ' to be less than or equal to P-D, determine that elevator brake fails.
S107, determine that elevator brake is normal.
Embodiment 2
On the basis of above-described embodiment 1, in the embodiment of the present invention, hoist ropes left end is fixed on roof by weighing device
On, when lift car zero load, is weighed as GIt is unloaded, lift car traction machine is to the right half hoist ropes application electric moment connected to pouring weight
When T ' makes lift car with balancing to pouring weight, it is weighed as GBalance, presetting elevator traction ratio is β, and the preset payload ratings of elevator are E；
The coefficient of balance of elevator at this time:
Lift car traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, makes lift car and counterweight
Coefficient of balance η when block balances is controlled in a certain range.
Judge that coefficient of balance, coefficient of balance control in the range of 0.45≤η≤0.50, but due to depositing in actual installation process
In error, therefore the electric moment T ' applied is all based on 0.4 coefficient of balance, it is meant that the electric moment of application has been more than reality
Value, i.e., in embodiments of the present invention when coefficient of balance is 0.4, lift car is balanced with to pouring weight.
Elevator brake abatement detecting method provided by the embodiment of the present invention crosses the normal pressure of detection brake with shearing force
And by certain algorithm to achieve the effect that brake fade early warning and monitoring, this method calculating is simple and effective, is not limited to outside
Environment and real-time height.
Embodiment 3
Fig. 3 show the structure composition block diagram of elevator brake failure detection device provided by the embodiment of the present invention.
Such as Fig. 3, which carries out brake fade detection for traction elevator structure, and traction elevator structure includes traction
Rope, elevator traction machine, lift car, to pouring weight and elevator brake.
Traction machine is passed through in the middle part of hoist ropes, left and right ends are individually fixed in roof.
Hoist ropes is divided into left and right two parts by elevator traction machine.
Lift car connects left half hoist ropes.
Right half hoist ropes is connected to pouring weight.
Elevator brake is used to apply normal pressure to elevator traction machine；
Wherein lift car self weight is P, and elevator car loading 0 is D to pouring weight weight,
Elevator traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, puts down lift car with to pouring weight
Weighing apparatus, lift car traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, balances lift car with to pouring weight
When coefficient of balance η control in the range of 0.45≤η≤0.50.
Elevator brake failure detection device includes:
Shear force detection module 301 is configured to shearing force T suffered by detection elevator brake.
Positive-pressure detection module 302 is configured to detection elevator brake to the normal pressure N of traction machine.
Stop capability evaluation module 303, is configured to useSize assessment elevator brake stop ability.
Brake fade determination module 304 is configured to judge whether T+T ' is less than or equal to P-D, if then determining elevator
Brake fade.
Embodiment 4
The embodiment of the invention provides a kind of computer equipments, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, processor realize any possible elevator of embodiment 1 or 2 when executing program
Abatement detecting method.
Embodiment 5
A kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that computer program is located
It manages when device executes and realizes any possible elevator abatement detecting method of embodiment 1 or 2.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
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| CN201711018298.9A CN107792740B (en) | 2017-10-27 | 2017-10-27 | Elevator brake abatement detecting method, device, equipment and storage medium |
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| CN201711018298.9A CN107792740B (en) | 2017-10-27 | 2017-10-27 | Elevator brake abatement detecting method, device, equipment and storage medium |
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| CN107792740A CN107792740A (en) | 2018-03-13 |
| CN107792740B true CN107792740B (en) | 2019-04-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108059048B (en) * | 2017-11-13 | 2020-05-19 | 西子电梯科技有限公司 | Detection early warning system and early warning method for elevator brake |
| CN109665390B (en) * | 2018-12-29 | 2021-07-16 | 日立电梯（中国）有限公司 | Elevator braking control method, device, elevator control device and elevator |
| EP3901079A1 (en) * | 2020-04-23 | 2021-10-27 | KONE Corporation | A method for testing safety characteristics of an elevator |
| CN114229644A (en) * | 2021-12-21 | 2022-03-25 | 福建省特种设备检验研究院泉州分院 | A kind of elevator maintenance evaluation method |
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| CN101020548A (en) * | 2006-03-14 | 2007-08-22 | 辽宁石油化工大学 | Method and instrument for measuring balance coefficient of elevator |
| CN101670965A (en) * | 2009-08-15 | 2010-03-17 | 宁波宏大电梯有限公司 | Method for measuring elevator equilibrium coefficient |
| CN104401834A (en) * | 2014-11-21 | 2015-03-11 | 申龙电梯股份有限公司 | Detection device and method for brake force of elevator traction machine |
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2017
- 2017-10-27 CN CN201711018298.9A patent/CN107792740B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217587C1 (en) * | 1992-05-21 | 1993-06-17 | Ernst Dipl.-Ing. 3300 Braunschweig De Kasten | Diagnosis system for checking lift or conveyor safety - tests braking and emergency blocking systems under simulated loading conditions and records acceleration characteristic |
| CN1502977A (en) * | 2002-11-20 | 2004-06-09 | 三菱电机建筑技术服务株式会社 | Device and method for measuring torque of elevator |
| CN101020548A (en) * | 2006-03-14 | 2007-08-22 | 辽宁石油化工大学 | Method and instrument for measuring balance coefficient of elevator |
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Effective date of registration: 20241113 Address after: No. 6 Xuefu Street, Xijiao Industrial Park, Wafangdian City, Dalian City, Liaoning Province, 116300 Patentee after: DALIAN XL BEARINGS Ltd. Country or region after: China Address before: 102200 Beijing Changping District Litang Road 36 Ocean Aobei Patentee before: Wang Chunmei Country or region before: China |