CN107792740A - Elevator brake abatement detecting method, device, equipment and storage medium - Google Patents
Elevator brake abatement detecting method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN107792740A CN107792740A CN201711018298.9A CN201711018298A CN107792740A CN 107792740 A CN107792740 A CN 107792740A CN 201711018298 A CN201711018298 A CN 201711018298A CN 107792740 A CN107792740 A CN 107792740A
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- Prior art keywords
- elevator
- brake
- lift car
- pouring weight
- traction machine
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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
- B66B5/0037—Performance analysers
Abstract
The invention discloses elevator brake abatement detecting method, device, equipment and storage medium, belong to elevator technology field, the technical scheme carries out brake fade detection for traction elevator structure, and elevator brake abatement detecting method comprises the following steps：Elevator traction machine applies electric moment T ' to the right half hoist ropes to pouring weight connection makes lift car with being balanced to pouring weight.Detect the shearing force T suffered by elevator brake.Detect normal pressure N of the elevator brake to the traction machine.The stop ability of elevator brake is assessed using (T+T')/N size.If T+T ' is less than or equal to P D, elevator brake failure is judged.For the above method, invention also provides related device, equipment and storage medium.The present invention is solving the problems, such as existing brake fade detection method application limitation and poor real.
Description
Technical field
The present invention relates to elevator technology field, and in particular to elevator brake abatement detecting method, device, equipment and storage
Medium.
Background technology
With the fast development of economic society, conveying people and thing of the high buildings and large mansions elevator as skyscraper in city
The vehicles of matter, its usage amount is increasing, and while elevator is brought convenience to the life of people, its security is just heavy to closing
Will, elevator brake is the key components and parts for ensureing elevator safety, and its failure cause has many aspects.
In recent years, with a large amount of uses of elevator, the accident triggered by elevator constantly occurs, and elevator brake system is as electricity
The guarantee of the safety and reliability of ladder, its failure will cause serious consequence.This requires to fail to elevator brake system
Pattern is probed into, and to may cause failure the reason for check, specific and comprehensive each link to brake checks,
To pinpoint the problems in time, ensure the safe operation of elevator brake
The multinomial technology on braking forces measuring be present in current domestic industry, but the defects of certain be present.
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 main frame rotates.Such as rotate, then it represents that band-type brake power deficiency, if do not rotated, then it represents that
Band-type brake power is normal.
This detection scheme is mainly completed in special time period, such as 12 points or so at night, and to ensure elevator no-load,
It can guarantee that the accuracy of detection.Therefore it is poor real the shortcomings that this scheme, limitation is bigger.
Therefore the detection for brake fade need badly it is a kind of it is easy and effective, be not limited to external environment condition and real-time is high
Method.
The content of the invention
It is an object of the invention to provide elevator brake abatement detecting method, device, equipment and storage medium, to solve
The problem of certainly existing brake fade detection method application limitation and poor real.
To achieve the above object, on the one hand the embodiment of the present invention provides a kind of elevator brake abatement detecting method, and it is 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 deadweight is P, elevator car loading
It is D to pouring weight weight for 0.
Elevator brake abatement detecting method comprises the following steps：
Elevator traction machine applies electric moment T ' to the right half hoist ropes connected to pouring weight makes lift car with being put down to pouring weight
Weighing apparatus.
Detect the shearing force T suffered by elevator brake.
Detect normal pressure N of the elevator brake to traction machine.
UsingSize assess elevator brake stop ability.
If T+T ' is less than or equal to P-D, elevator brake failure is judged.
In one or more embodiments of first aspect, hoist ropes left end is fixed on roof by weighing device, electricity
G is weighed as during terraced car zero loadIt is unloaded, lift car traction machine applies electric moment T ' to the right half hoist ropes connected to pouring weight to be made
Lift car is with when being balanced to pouring weight, being weighed as GBalance, it is β to preset elevator traction ratio, and the default payload ratings of elevator are E；It is then electric
Ladder coefficient of balance be：
In one or more embodiments of first aspect, right half traction of the lift car traction machine to being connected to pouring weight
The coefficient of balance η that rope applies when electric moment T ' makes lift car and balanced to pouring weight is controlled in the range of 0.45≤η≤0.50.
In one or more embodiments of first aspect, right half traction of the lift car traction machine to being connected to pouring weight
The coefficient of balance that rope applies when electric moment T ' makes lift car and balanced to pouring weight is 0.4.
Second aspect, the embodiment of the present invention additionally provide a kind of elevator failure detection device, 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 deadweight is P, elevator car loading 0, is D to pouring weight weight.
Elevator traction machine applies electric moment T ' to the right half hoist ropes connected to pouring weight makes lift car with being put down to pouring weight
Weighing apparatus.
Elevator brake failure detection device includes：
Shear force detection module, it is configured to detect the shearing force T suffered by elevator brake.
Positive-pressure detection module, it is configured to detect normal pressure N of the elevator brake to traction machine；
Stop capability evaluation module, is configured to useSize assess elevator brake stop ability.
Brake fade determination module, it is configured to judge whether T+T ' is less than or equal to P-D, if then judging elevator brake
Failure.6th, device as claimed in claim 5, it is characterised in that lift car traction machine is to the right half hoist ropes that is connected to pouring weight
The coefficient of balance η for applying electric moment T ' when making lift car and being balanced to pouring weight is controlled in the range of 0.45≤η≤0.50.
The third aspect, the embodiment of the present invention additionally provide a kind of computer equipment, including memory, processor and storage
On a memory and the computer program that can run on a processor, any implementation of first aspect is realized during computing device program
The elevator abatement detecting method that example is provided.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer-readable recording medium, are stored thereon with computer
Program, the elevator abatement detecting method that first aspect any embodiment is provided is realized when computer program is executed by processor.
The inventive method has the following advantages that：
Elevator brake abatement detecting method provided by the present invention is crossed the normal pressure of detection brake with shearing force and passed through
Certain algorithm so as to reach the effect of brake fade early warning and monitoring, this method calculate it is easy and effective, be not limited to external environment condition and
Real-time is high.
Brief description of the drawings
The schematic flow sheet for the elevator brake abatement detecting method that Fig. 1 is provided by the embodiment of the present invention.
The traction elevator structural representation that Fig. 2 is provided by the embodiment of the present invention；
The structure composition block diagram for the elevator brake failure detection device that Fig. 3 is provided by the embodiment of the present invention.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
Caused by elevator brake failure reduces mainly due to 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 detect the normal pressure of brake with coefficient of friction
It can be achieved with brake fade early warning and monitoring.But because coefficient of friction is difficult directly to detect, therefore the embodiment of the present invention passes through inspection
The normal pressure of brake is surveyed with shearing force and by certain algorithm so as to reaching the effect of brake fade early warning and monitoring.
The idiographic flow 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 including 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 deadweight 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 comprises 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 balances；Elevator device can apply certain electric moment T ' to assess drag friction in lift car zero load to Elevator weight sensor side
Power FSlide。
Shearing force T suffered by S102, detection elevator brake；Braking friction F is assessed using T+T 'Slide。
S103, detect normal pressure N of the elevator brake to traction machine；Brake is by braking to the normal pressure N of traction sheave
What the deformation quantity of device contained spring was determined, its size and the gap relationships of brake are close；Settable sensor detection is just
Pressure.
S104, useSize assess elevator brake stop ability；According to formula FSlide=μ × N can be obtained,
I.e. friction coefficient μ is force of sliding friction FSlideThe ratio between with normal pressure N, friction coefficient μ is that the key for assessing braking of brake ability refers to
Mark.
S105, judge whether T+T ' is less than or equal to P-D, be to perform S106, otherwise perform S107.
S106, then judge elevator brake failure.Under normal circumstances, brake force (the namely force of sliding friction of brake
FSlide) 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 over time
Passage, due to the normal pressure N or friction coefficient μ of brake, there occurs change to cause brake force FSlideDecline, work as FSlide≤ F when
Wait, brake fade will be produced.When Q is 0, if then there is T+T ' to be less than or equal to P-D, elevator brake failure is judged.
S107, judge 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, G is weighed as during lift car zero loadIt is unloaded, lift car traction machine applies electric moment to the right half hoist ropes that is connected to pouring weight
When T ' makes lift car and pouring weight is balanced, G is weighed asBalance, it is β to preset elevator traction ratio, and the default payload ratings of elevator are E；
The now coefficient of balance of elevator：
Lift car traction machine applies electric moment T ' to the right half hoist ropes connected to pouring weight makes lift car and counterweight
In coefficient of balance η control certain limits when block balances.
Judging coefficient of balance, coefficient of balance is controlled in the range of 0.45≤η≤0.50, but due to being deposited during actual installation
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 exceeded reality
Value, i.e., in embodiments of the present invention when coefficient of balance is 0.4, lift car to pouring weight with balancing.
The elevator brake abatement detecting method that the embodiment of the present invention is provided crosses the normal pressure of detection brake with shearing force
And by certain algorithm so as to reach the effect of brake fade early warning and monitoring, this method calculating is easy and effective, is not limited to outside
Environment and real-time height.
Embodiment 3
Fig. 3 show the structure composition block diagram for the elevator brake failure detection device that the embodiment of the present invention is provided.
Such as Fig. 3, the device 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 deadweight is P, elevator car loading 0, is D to pouring weight weight,
Elevator traction machine applies electric moment T ' to the right half hoist ropes connected to pouring weight makes lift car with being put down to pouring weight
Weighing apparatus, lift car traction machine, which applies electric moment T ' to the right half hoist ropes connected to pouring weight, makes lift car with being balanced 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, it is configured to detect the shearing force T suffered by elevator brake.
Positive-pressure detection module 302, it is configured to detect normal pressure N of the elevator brake to traction machine.
Stop capability evaluation module 303, is configured to useSize assess elevator brake stop ability.
Brake fade determination module 304, it is configured to judge whether T+T ' is less than or equal to P-D, if then judging elevator
Brake fade.
Embodiment 4
The embodiments of the invention provide a kind of computer equipment, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, any possible elevator of embodiment 1 or 2 is realized during computing device program
Abatement detecting method.
Embodiment 5
A kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that computer program is located
Reason device realizes any possible elevator abatement detecting method of embodiment 1 or 2 when performing.
Although above with 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, belong to the scope of protection of present invention.
Claims (8)
1. a kind of elevator brake abatement detecting method, it is characterised in that this method carries out braking mistake for traction elevator structure
Effect detection, the traction elevator structure include hoist ropes, elevator traction machine, lift car, to pouring weight and elevator brake；
Elevator traction machine is passed through in the middle part of the hoist ropes, left and right ends are individually fixed in roof；
The hoist ropes is divided into left and right two parts by the elevator traction machine；
The lift car connects left half hoist ropes；
It is described that right half hoist ropes is connected to pouring weight；
The elevator brake is used to apply normal pressure to the elevator traction machine；
Wherein lift car deadweight is P, and elevator car loading 0, described is D to pouring weight weight,
The elevator brake abatement detecting method comprises the following steps：
The elevator traction machine applies electric moment T ' to the right half hoist ropes to pouring weight connection makes lift car and counterweight
Block balances；
Detect the shearing force T suffered by elevator brake；
Detect normal pressure N of the elevator brake to the traction machine；
UsingSize assess elevator brake stop ability；
If T+T ' is less than or equal to P-D, elevator brake failure is judged.
2. the method as described in claim 1, it is characterised in that the hoist ropes left end is fixed on the top by weighing device
G is weighed as on wall, during the lift car zero loadIt is unloaded, the lift car traction machine to it is described to pouring weight connection right half drag
When messenger application electric moment T ' makes lift car and pouring weight is balanced, G is weighed asBalance, it is β to preset elevator traction ratio, and elevator is preset
Payload ratings be E；Then the coefficient of balance of elevator is：
G is gravity coefficient.
3. method as claimed in claim 2, it is characterised in that the lift car traction machine is to the right side to pouring weight connection
The coefficient of balance η that part hoist ropes applies when electric moment T ' makes lift car and balanced to pouring weight is controlled in 0.45≤η≤0.50
In the range of.
4. the method as described in claim 1, it is characterised in that the lift car traction machine is to the right side to pouring weight connection
The coefficient of balance that part hoist ropes applies when electric moment T ' makes lift car and balanced to pouring weight is 0.4.
5. a kind of elevator failure detection device, it is characterised in that the device carries out brake fade inspection for traction elevator structure
Survey, the traction elevator structure include hoist ropes, elevator traction machine, lift car, to pouring weight and elevator brake；
Traction machine is passed through in the middle part of the hoist ropes, left and right ends are individually fixed in roof；
The hoist ropes is divided into left and right two parts by the elevator traction machine；
The lift car connects left half hoist ropes；
It is described that right half hoist ropes is connected to pouring weight；
The elevator brake is used to apply normal pressure to the elevator traction machine；
Wherein lift car deadweight is P, and elevator car loading 0, described is D to pouring weight weight,
The elevator traction machine applies electric moment T ' to the right half hoist ropes to pouring weight connection makes lift car and counterweight
Block balances；
The elevator brake failure detection device includes：
Shear force detection module, it is configured to detect the shearing force T suffered by elevator brake；
Positive-pressure detection module, it is configured to detect normal pressure N of the elevator brake to the traction machine；
Stop capability evaluation module, is configured to useSize assess elevator brake stop ability；
Brake fade determination module, it is configured to judge whether T+T ' is less than or equal to P-D, if then judging that elevator brake loses
Effect.
6. device as claimed in claim 5, it is characterised in that the lift car traction machine is to the right side to pouring weight connection
The coefficient of balance η that part hoist ropes applies when electric moment T ' makes lift car and balanced to pouring weight is controlled in 0.45≤η≤0.50
In the range of.
7. a kind of computer equipment, including memory, processor and storage can be run on a memory and on a processor
Computer program, it is characterised in that the claim 1-4 any described sides are realized during the computing device described program
Method.
8. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program quilt
The claim 1-4 any described methods are realized during computing device.
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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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| CN107792740B CN107792740B (en) | 2019-04-16 |
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Cited By (4)
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| CN108059048A (en) * | 2017-11-13 | 2018-05-22 | 西子电梯科技有限公司 | The detection early warning system and method for early warning of a kind of elevator brake |
| CN109665390A (en) * | 2018-12-29 | 2019-04-23 | 日立电梯（中国）有限公司 | Elevator brake control method, device, elevator control aggregate 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 | Elevator maintenance evaluation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114229644A (en) * | 2021-12-21 | 2022-03-25 | 福建省特种设备检验研究院泉州分院 | Elevator maintenance evaluation method |
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