CN108100792A - A kind of Digital evaluation method of elevator traction machine synthesis stop ability - Google Patents

A kind of Digital evaluation method of elevator traction machine synthesis stop ability Download PDF

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Publication number
CN108100792A
CN108100792A CN201711278222.XA CN201711278222A CN108100792A CN 108100792 A CN108100792 A CN 108100792A CN 201711278222 A CN201711278222 A CN 201711278222A CN 108100792 A CN108100792 A CN 108100792A
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CN
China
Prior art keywords
traction
steel wire
wire rope
elevator
traction sheave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201711278222.XA
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Chinese (zh)
Inventor
王寅凯
高常进
赵秋洪
王泽军
陈洪国
吕蒸
周韬
戴光宇
王婉君
纪嘉麟
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Tianjin Inst Of Special Appliances Supervision And Check Tech
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Tianjin Inst Of Special Appliances Supervision And Check Tech
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Priority to CN201711278222.XA priority Critical patent/CN108100792A/en
Publication of CN108100792A publication Critical patent/CN108100792A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093Testing of safety devices

Abstract

The present invention discloses a kind of Digital evaluation method of elevator traction machine synthesis stop ability, including step:Confirm lift car in nobody;The self study of interlayer position:Obtain interlayer position;Interlayer location triggered experiment;Steel wire rope and traction sheave stop;Obtain traction sheave braking distance;Obtain steel wire rope braking distance.Advantageous effect is to obtain in test the braking distance of traction sheave and the braking distance of steel wire rope respectively, strong operability, and applicability is wide;By way of relay and self study, the counterweight position equal with car is obtained, during stop experiment, is tested in this position, ensure that the uniformity of external condition during experiment;By way of outer sensor, the braking distance of traction sheave and steel wire rope is obtained respectively, and the two has no bearing on, is independent of each other, can be with the stop ability of independent assessment traction sheave and steel wire rope, and then obtains comprehensive stop ability.

Description

A kind of Digital evaluation method of elevator traction machine synthesis stop ability
Technical field
The present invention relates to elevator traction machine security fields;More particularly to a kind of number of elevator traction machine synthesis stop ability Word evaluation method.
Background technology
Elevator refers to serve several specific floors in building, and car operates at least two row perpendicular to horizontal plane Or the permanent transporting equipment moved with rigid track of the plumb line inclination angle less than 15 °.The feeler of elevator service has been deep into The various aspects of our Working Lifes are even more a kind of special equipment for being directly related to people life property safety.
Traction elevator occupies absolute majority on the market at present(Hereinafter referred to as elevator).Elevator traction machine is the dynamic of elevator Power equipment, also known as elevator host.When elevator needs to slow down or stop, the stopping power of brake is an important finger Mark, be embodied directly in contracting brake can stop traction sheave ability, similar to the braking ability in automobile brake system; The traction capacity of traction sheave is another important index, the frictional force being embodied directly between traction sheave and steel wire rope, class It is similar to the tire of automobile and the frictional force on ground.Therefore, brake force and traction are by the stop energy of combined reaction elevator traction machine Power(I.e. comprehensive stop ability), the two is of equal importance, indispensable, but in the realistic case, the two is coupling, not easy-peel From.
The detection method of the typical elevator traction retrieved at present is Application No. 201511008058.1《Elevator drags The detection method of gravitation》, which discloses a kind of detection method of elevator traction power, and elevator emergency brake elevator stops Afterwards, control elevator is run to level position;It is poor to calculate the distance between the absolute position of lift car and the physical location of flat bed, But also there are some shortcomings:
1. the distance between the absolute position of lift car and the physical location of flat bed difference need to set early warning threshold values, early warning threshold values Rational design have very big difficulty;
2. the testing result of distance ultimately results in testing result and has difference with the difference of elevator stopping position.Need Same position is tested.
3. when carrying out traction test, the brake force of system is not accounted for.
The content of the invention
The technical problem to be solved by the invention is to provide it is a kind of it is simple and direct, conveniently, stablize and obtain elevator traction machine synthesis system Stop the Digital evaluation method of ability.
The technical solution adopted in the present invention is a kind of Digital evaluation method of elevator traction machine synthesis stop ability, Including step:
A. confirm lift car in nobody;
B. interlayer position self study:Obtain interlayer position;
C. interlayer location triggered is tested;
D. steel wire rope and traction sheave stop;
E. traction sheave braking distance is obtained;
F. steel wire rope braking distance is obtained.
Once, traction sheave speed acquisition device acquisition elevator whole process range ability passes through integration to the whole operation of step B elevators Lifting height of lift N is obtained, i.e. the counterweight position equal with car is:The N/2 counted from end station.
Step C elevators are with normal speed v, the car downlink since upstation, the acquisition accumulation of traction sheave speed acquisition device When range ability reaches N/2, trigger relay action.
Relay disconnects major loop during step D moment t, and switch board and traction machine power-off, traction machine brake are started to work, Traction machine runs out of steam simultaneously, and traction machine reduces speed now, and steel wire rope also gradually slows down due to the double action of inertia and traction.
Step E traction machines run out of steam and under the action of brake, gradually slow down until stopping;Treat that traction wheel speed is adopted Acquisition means, when to monitor traction sheave pitch circle linear velocity be 0.95v/i, traction sheave speed acquisition device start recording, until traction Wheel stops completely, and its speed is integrated, and the braking distance for obtaining traction sheave rotation is h '.
Step F steel wire ropes can at a time slow down and until stop completely under the double action of inertia and traction; Treat rope speed harvester, monitor steel wire rope linear velocity be 0.95v/i when, rope speed harvester starts to remember Record until steel wire rope stops completely, and integrates its speed, and it is h " to obtain steel wire rope braking distance.
The invention has the advantages that in test respectively obtain traction sheave braking distance and steel wire rope stop away from From, strong operability, applicability is wide;By way of relay and self study, the counterweight position equal with car is obtained, is being made It during stopping experiment, is tested in this position, ensure that the uniformity of external condition during experiment;Pass through outer sensor Mode, obtain the braking distance of traction sheave and steel wire rope respectively, the two is had no bearing on, is independent of each other, can draged with independent assessment The stop ability of running wheel and steel wire rope, and then obtain comprehensive stop ability.
Description of the drawings
Fig. 1 is information collecting device scheme of installation of the present invention;
Fig. 2 is the Digital evaluation method flow diagram of elevator traction machine synthesis braking distance of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, the Digital evaluation method of elevator traction machine synthesis stop ability of the present invention need to utilize corresponding acquisition to fill It puts, now acquisition installation is illustrated.
Relay 7 is installed between the master switch leading-out terminal and switch board of the elevator of elevator(lift) machine room(Relay 7 is used to trigger Traction sheave speed acquisition device 2 and rope speed harvester 3).Traction machine 1 by steel wire rope drive car 4 and counterweight 5 into Row vertical movement.Traction sheave speed acquisition device 2 and rope speed harvester 3 are wheel-type encoder, for gathering traction The rotating speed of wheel and the linear velocity of steel wire rope.After elevator runs to certain position, relay 7 powers off, lift car downlink side To braking, traction sheave speed acquisition device 2 and rope speed harvester 3 gather the speed of service, and it are integrated and is draged The braking distance of running wheel and steel wire rope.
Traction sheave speed acquisition device 2, for wheel-type rotary encoder, model:E6B2—CWZ6C(Precision:2000P/ R), the device be mounted on traction machine on, condition triggering under, for gathering traction sheave of tractor pitch circle linear velocity, and it is accumulated Get distance.
Rope speed harvester 3, for wheel-type rotary encoder, model:E6B2—CWZ6C(Precision:2000P/ R), the device be mounted on steel wire rope at, condition triggering under, for gathering rope speed, and it is integrated to obtain distance.
As shown in Fig. 2, the Digital evaluation method of elevator traction machine synthesis stop ability of the present invention, comprehensive stop ability bag It includes:The stopping power of contracting brake and the traction capacity of traction sheave,
Defined parameters:
Elevator whole process range ability:N(m)
Relay triggering moment:t
Rated speed of lift:v(m/s)
Elevator traction ratio:i
Traction sheave speed acquisition device 2 is after trigger recording up to stopping completely, the distance of traction sheave rotation:h′(m)
Rope speed harvester 3 is after trigger recording up to stopping completely, the distance of steel wire rope movement:h″(m).
Comprise the following steps:
A. confirm lift car in nobody;Before the Digital evaluation of elevator traction machine synthesis stop ability is carried out, it should confirm In lift car nobody, after confirmation, elevator cage door closes, suspend elevator outer calling log-on operation.At this point, elevator is only responded in computer room Portion operates, and ensures passenger safety and lift facility safety, ensures the accuracy of testing experiment.
B. interlayer position self study;Once, it is whole that traction sheave speed acquisition device 2 gathers elevator to the whole operation of elevator Range ability obtains lifting height of lift N by integrating, then the counterweight position equal with car is counted from end station as N/2;
C. interlayer location triggered is tested;Elevator is with normal speed v, the car downlink since upstation, traction sheave speed acquisition When the acquisition accumulation range ability of device 2 reaches N/2, trigger relay 7 acts;
D. steel wire rope and traction sheave stop;Relay 7 disconnects major loop(Moment t at this time), switch board 6 and traction machine 1 power off, Traction machine brake is started to work, while traction machine 1 runs out of steam, and traction machine 1 reduces speed now, and steel wire rope is due to inertia and traction The double action of power is also gradually slowed down;
E. traction sheave braking distance is obtained;Traction machine 1 runs out of steam and in the effect of brake, gradually slows down until stopping.It treats Traction sheave speed acquisition device 2, monitor traction sheave pitch circle linear velocity be 0.95v/i when, traction sheave speed acquisition device 2 starts Record until traction sheave stops completely, and integrates its speed, and the braking distance for obtaining traction sheave rotation is h ';
F. steel wire rope braking distance is obtained;Steel wire rope can at a time slow down simultaneously under the double action of inertia and traction Until stop completely.Treat rope speed harvester 3, monitor steel wire rope linear velocity be 0.95v/i when, rope speed is adopted 3 start recording of acquisition means until steel wire rope stops completely, and integrates its speed, and it is h " to obtain steel wire rope braking distance.
It is worth noting that protection scope of the present invention is not limited to above-mentioned specific example mode, it is according to the present invention Basic fundamental is conceived, it is also possible to which essentially identical configuration can achieve the object of the present invention, as long as those of ordinary skill in the art Need not move through creative work, you can the embodiment associated all belongs to the scope of protection of the present invention.

Claims (6)

  1. A kind of 1. Digital evaluation method of elevator traction machine synthesis stop ability, which is characterized in that including step:
    A. confirm lift car in nobody;
    B. interlayer position self study:Obtain interlayer position;
    C. interlayer location triggered is tested;
    D. steel wire rope and traction sheave stop;
    E. traction sheave braking distance is obtained;
    F. steel wire rope braking distance is obtained.
  2. 2. the Digital evaluation method of elevator traction machine synthesis stop ability according to claim 1, which is characterized in that step Rapid B elevators are whole to be run once, traction sheave speed acquisition device(2)Elevator whole process range ability is gathered, electricity is obtained by integrating Terraced hoisting depth N, i.e. the counterweight position equal with car are:The N/2 counted from end station.
  3. 3. the Digital evaluation method of elevator traction machine synthesis stop ability according to claim 1, which is characterized in that step Rapid C elevators are with normal speed v, the car downlink since upstation, traction sheave speed acquisition device(2)Acquisition accumulation range ability When reaching N/2, trigger relay(7)Action.
  4. 4. the Digital evaluation method of elevator traction machine synthesis stop ability according to claim 1, which is characterized in that step Relay during rapid D moment t(7)Disconnect major loop, switch board(6)And traction machine(1)Power-off, traction machine brake are started to work, Traction machine simultaneously(1)It runs out of steam, traction machine(1)Reduce speed now, steel wire rope due to inertia and traction double action also by It is decrescence fast.
  5. 5. the Digital evaluation method of elevator traction machine synthesis stop ability according to claim 1, which is characterized in that step Rapid E traction machines(1)It runs out of steam and under the action of brake, gradually slows down until stopping;Treat traction sheave speed acquisition device (2), monitor traction sheave pitch circle linear velocity be 0.95v/i when, traction sheave speed acquisition device(2)Start recording, until traction Wheel stops completely, and its speed is integrated, and the braking distance for obtaining traction sheave rotation is h '.
  6. 6. the Digital evaluation method of elevator traction machine synthesis stop ability according to claim 1, which is characterized in that step Rapid F steel wire ropes can at a time slow down and until stop completely under the double action of inertia and traction;Treat steel wire rope speed Spend harvester(3), monitor steel wire rope linear velocity be 0.95v/i when, rope speed harvester(3)Start recording, directly Stop completely to steel wire rope, and its speed is integrated, it is h " to obtain steel wire rope braking distance.
CN201711278222.XA 2017-12-06 2017-12-06 A kind of Digital evaluation method of elevator traction machine synthesis stop ability Withdrawn CN108100792A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111268528A (en) * 2020-01-20 2020-06-12 武汉港迪电气传动技术有限公司 Method for detecting performance of anti-falling safety device of construction elevator
CN112299180A (en) * 2020-11-11 2021-02-02 内江市特种设备监督检验所 Traction-driven elevator traction machine braking moment self-monitoring method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2876034Y (en) * 2006-01-20 2007-03-07 王贯山 Detecting device of elevator dynamic brake force moment
JP2007119131A (en) * 2005-10-26 2007-05-17 Toshiba Elevator Co Ltd Elevator rope swing prevention device
CN201538622U (en) * 2009-06-23 2010-08-04 福建省特种设备监督检验所 Intelligent comprehensive detector of elevator operation test
JP2013159436A (en) * 2012-02-03 2013-08-19 Mitsubishi Electric Corp Braking device for elevator hoisting machine
CN205500487U (en) * 2016-04-13 2016-08-24 新疆维吾尔自治区特种设备检验研究院 Distance, speed reduction measuring device are stopped to elevator speed , system
CN106115399A (en) * 2016-06-30 2016-11-16 天津市特种设备监督检验技术研究院 Elevator traction machine traction monitoring methods based on big data
CN106915676A (en) * 2017-05-03 2017-07-04 重庆顺心科技发展有限公司 A kind of elevator brake parameter detecting instrument

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007119131A (en) * 2005-10-26 2007-05-17 Toshiba Elevator Co Ltd Elevator rope swing prevention device
CN2876034Y (en) * 2006-01-20 2007-03-07 王贯山 Detecting device of elevator dynamic brake force moment
CN201538622U (en) * 2009-06-23 2010-08-04 福建省特种设备监督检验所 Intelligent comprehensive detector of elevator operation test
JP2013159436A (en) * 2012-02-03 2013-08-19 Mitsubishi Electric Corp Braking device for elevator hoisting machine
CN205500487U (en) * 2016-04-13 2016-08-24 新疆维吾尔自治区特种设备检验研究院 Distance, speed reduction measuring device are stopped to elevator speed , system
CN106115399A (en) * 2016-06-30 2016-11-16 天津市特种设备监督检验技术研究院 Elevator traction machine traction monitoring methods based on big data
CN106915676A (en) * 2017-05-03 2017-07-04 重庆顺心科技发展有限公司 A kind of elevator brake parameter detecting instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111268528A (en) * 2020-01-20 2020-06-12 武汉港迪电气传动技术有限公司 Method for detecting performance of anti-falling safety device of construction elevator
CN112299180A (en) * 2020-11-11 2021-02-02 内江市特种设备监督检验所 Traction-driven elevator traction machine braking moment self-monitoring method

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Applicant after: Tianjin Institute of Special Equipment Supervision and Inspection Technology (Tianjin Special Equipment Accident Emergency Investigation and Treatment Center)

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