CN102887406A - Elevator load detection device and method thereof - Google Patents
Elevator load detection device and method thereof Download PDFInfo
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- CN102887406A CN102887406A CN2012103778612A CN201210377861A CN102887406A CN 102887406 A CN102887406 A CN 102887406A CN 2012103778612 A CN2012103778612 A CN 2012103778612A CN 201210377861 A CN201210377861 A CN 201210377861A CN 102887406 A CN102887406 A CN 102887406A
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Abstract
The invention provides an elevator load detection device which comprises at least one loading measuring group, a sensor display instrument, a computer and an intelligent hydraulic control device, wherein the computer is connected with the sensor display instrument and the intelligent hydraulic control device respectively; each loading measuring group comprises a tension sensor, a hydraulic oil cylinder and a basic embedded board; the top of each tension sensor is connected with a first steel wire rope; each first steel wire rope penetrates through a car bottom beam and is connected to the car bottom; the lower end of each tension sensor is connected with a piston vertical rod of the hydraulic oil cylinder through a second steel wire rope; and the bottom of each hydraulic oil cylinder is fixed on the corresponding basic embedded board. The invention also provides an elevator load detection method. The device provided by the invention is small in volume, light in weight, convenient to carry, strong in practicability, easy to operate and feasible; and the detected value is more reliable and accurate.
Description
[technical field]
The present invention relates to a kind of elevator load detecting device and method thereof.
[background technology]
Along with the develop rapidly of China's economy, skyscraper is rised sheer from level ground like the mushrooms after rain.Elevator is the indispensable device of skyscraper, its transport facility as a kind of uniqueness has obtained popularizing rapidly and development, elevator also is the higher electromechanical integrated product of a kind of technology content simultaneously, because it has fully used microcomputer control, intelligence and electrical and electronic technology, so the content height that possesses skills, develop fast characteristics.When high-rise is more and more higher to the requirement of elevator performance and control system, require its corresponding safety system also more advanced, more reliable.
Overload protection function is a kind of important defencive function of elevator, and the elevator lot of accident that newpapers and periodicals and TV etc. are exposed by the media all lost efficacy relevant with the lift car overload warning.Particularly elevator without the driver operation state under because people do not know the elevator key property, run into coaster or other improper operating conditions, mostly blindly in the car toward flight, thereby cause the tragedy that much should not occur.And overload protection function all is very important for the goods of the personal safety of guaranteeing the boarding personnel and elevator conveying and lift facility inherently safe etc.
Overload protection device in use, for various reasons, its validity and precision can change unavoidably.If this apparatus function lost efficacy or load carrying ability also can't move above 110% warning ultimate load, just there has been potential safety hazard in elevator.For guaranteeing that every elevator has reliable, accurate, a stable overload protection device; elevator maintain and protection company will regularly safeguard this device and test; but in practical operation for various reasons; the Application standard counterweight is comparatively limited as the overload condition of the function that detects of load or other load, many times just may not find enough load to test.So no matter elevator maintenance company might as well; or special equipment inspection mechanism might as well; overload protection to elevator has certain ignorance; whether the warning function that also is at most action detection switch is effective; see simultaneously whether satisfy relevant criterion to the requirement of elevator overload, but when reporting to the police represented load capacity whether to satisfy the requirement of standard just unknown.
Can realize that without instrumentation no-load detects the elevator overload warning function in the market.The check of elevator overload alarm and protection function is a blind area now, also is the major cause that there is potential safety hazard in elevator even has an accident.
The day for announcing is on 07 18th, 2012, notification number is the Chinese patent of CN202337623U, a kind of lift load detector is disclosed, its main points are, it comprises support, lever, bearing pin, strut bar, upper support seat, all is processed with the pin-and-hole that matches with bearing pin on support, the lever, and lever is hinged by bearing pin and support, strut bar one end links to each other with support, and the other end links to each other with upper support seat.This patent is based on lever principle and designs, and its upper support seat need act on the upper bank of hoistway door, so the upper bank of hoistway door must provide enough antagonistic forces; Yet in practical operation, the upper bank of hoistway door possibly can't be realized this function, for example: and bank undercapacity on some hoistway door, can't bear bearing force; Bank is too narrow again or on some hoistway door, can't support this detector upper support seat, and causing elevator load to detect can't effectively carry out; This detector volume is too huge in addition, and preponderance is not easy to carry; Should be to lightness, miniaturization development.
[summary of the invention]
One of the technical problem to be solved in the present invention, be to provide a kind of elevator load detecting device, its volume is little, lightweight, be easy to carry, applicability is strong, easy to operation simultaneously, can guarantee that elevator load detects actv. and carries out, solve and detected elevator overload with counterweight and have that the counterweight carrying is loaded down with trivial details, labour intensity is large, inefficient problem.
The present invention adopts one of following technical scheme technical solution problem:
A kind of elevator load detecting device, described detecting device cooperate a lift car to use, and a car bottom of described lift car is erected at the top of a car bottom girder by two rubber blocks; Wherein, described detecting device comprises at least one loading measurement group, a sensor display instrument, a computing machine and an intelligent hydraulic control setup, and described computing machine links to each other with sensor display instrument and intelligent hydraulic control setup respectively; Each described loading measurement group comprises a pulling force sensor, a hydraulic ram and a basic embedded board, the top of each described pulling force sensor is connected with one first steel rope, each described first steel rope wore described car bottom girder and was connected to car bottom, the lower end of each described pulling force sensor links to each other with a piston montant of described hydraulic ram by one second steel rope, the bottom of each described hydraulic ram is fixed on the corresponding basic embedded board, and each described basic embedded board all is embedded in the foundation ditch of described elevator; Each described pulling force sensor all is connected to the sensor display instrument, and each described hydraulic ram all is connected to the intelligent hydraulic control setup by an oil pipe.
Further, the group number of described loading measurement group is two groups, described two groups load the measurement groups respectively corresponding be arranged on car bottom girder both sides under.
Further, described car bottom is provided with two suspension ring corresponding with the first steel rope, each described suspension ring be separately positioned on corresponding basic embedded board directly over, each described first steel rope is fixed on the corresponding suspension ring.
Further, described hydraulic ram comprises an oil cylinder body and a piston, described piston comprises a piston head and is vertically set on piston montant on the piston head, described piston head is horizontally set with in the oil groove of described oil cylinder body, described piston montant wore the top of oil cylinder body, described oil pipe links to each other with hydraulic ram by a fuel feed hole, and described fuel feed hole is arranged on the top of piston head.
Two of the technical problem to be solved in the present invention is to provide a kind of elevator load method of inspection, can make the detection of overload protection device of elevator more simple and easy to do, and detected numerical value is more reliable, accurate simultaneously.
The present invention adopts two of following technical scheme technical solution problem:
A kind of elevator load method of inspection, described method of inspection comprise the steps: that by a computer controlled one intelligent hydraulic control setup hydraulic ram being carried out fuel feeding loads, and the load that loads is to the car bottom of elevator; Pulling force sensor detects the load that hydraulic ram produces in real time, and feeds back to computing machine by the sensor display instrument; The sensor display instrument feeds back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust; The load that hydraulic ram is loaded is loaded on the warning ultimate load that the overload protection device of elevator sets, and observes the warning device reaction of overload protection device, judges whether this overload protection device is normal.
Further, described method of inspection specifically may further comprise the steps:
Step 10, in computing machine, set the warning ultimate load of elevator overload protecting device, and control an intelligent hydraulic control setup hydraulic ram is carried out the fuel feeding loading, described hydraulic ram fixes with a basic embedded board that is embedded in the elevator foundation ditch, and the piston of described hydraulic ram links to each other with the car bottom of elevator by a pulling force sensor again;
Step 20, hydraulic oil inject from the piston top in the hydraulic ram, piston is movable downwards, drive piston, so that the pulling force sensor that links to each other with piston is subject to a downward pulling force, and with the car bottom of this pull transfer to elevator, it is that the pulling force that car bottom is subject to feeds back on the sensor display instrument that the while pulling force sensor will detect the real-time load that produces of hydraulic ram;
Step 30, sensor display instrument feed back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust;
Step 40, in the process that hydraulic ram loads, if the load that loads within the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device is normal; If the load that loads is outside the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device need revise.
The present invention has following advantage:
The sensor display instrument shows the stressed size of pulling force sensor in real time, and with this signal feedback to computing machine, computing machine by the intelligent hydraulic control setup to hydraulic ram advance, oil return, so form a closed loop control system, until reach predetermined load at the bottom of pulling force sensor and the lift car, elevator overload, warning is reported to the police.The load that this device applies accurately, reliable, and can apply the load of arbitrary size to elevator according to concrete needs, the overload that is applicable to any bearing capacity elevator detects.
In addition, elevator load detecting device volume of the present invention is little, lightweight, is easy to carry, carries, and is simultaneously simple in structure, therefore simple operation, simple when the elevator overload device is tested; The present invention is simple to operation in a word, testing result is more accurate, has solved to detect elevator overload with counterweight and have that the counterweight carrying is loaded down with trivial details, labour intensity is large, inefficient problem.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of a kind of elevator load detecting device of the present invention.
Fig. 2 is the cutaway view of hydraulic ram of the present invention.
[specific embodiment]
See also illustrated in figures 1 and 2ly, embodiments of the invention are described in detail.
Such as Fig. 1 and shown in Figure 2, the present invention relates to a kind of elevator load detecting device, described detecting device cooperates a lift car 1 to use, and a car bottom 11 of described lift car 1 is erected at the top of a car bottom girder 13 by two rubber blocks 12; Described detecting device comprises at least one loading measurement group 2, a sensor display instrument 3, a computing machine 4 and an intelligent hydraulic control setup 5, and described computing machine 4 links to each other with sensor display instrument 3 and intelligent hydraulic control setup 5 respectively; Each described loading measurement group 2 comprises a pulling force sensor 21, a hydraulic ram 22 and a basic embedded board 23, the top of each described pulling force sensor 21 is connected with one first steel rope 24, each described first steel rope 24 wore described car bottom girder 13 and was connected to car bottom 11, the lower end of each described pulling force sensor 21 links to each other with a piston montant 221 of described hydraulic ram 22 by one second steel rope 25, the bottom of each described hydraulic ram 22 is fixed on the corresponding basic embedded board 23, and each described basic embedded board 23 all is embedded in the foundation ditch 14 of described elevator; Each described pulling force sensor 21 all is connected to sensor display instrument 3, and each described hydraulic ram 22 all is connected to intelligent hydraulic control setup 5 by an oil pipe 51.
The group number of described loading measurement group 2 is two groups, described two groups load measurement groups 2 respectively corresponding be arranged on car bottom girder 13 both sides under.
Described car bottom 11 is provided with two suspension ring 111 corresponding with the first steel rope 24, each described suspension ring 111 be separately positioned on corresponding basic embedded board 14 directly over, each described first steel rope 24 is fixed on the corresponding suspension ring 111.
Emphasis is consulted Fig. 2, described hydraulic ram 22 comprises an oil cylinder body 222 and a piston 223, described piston 223 comprises a piston head 224 and is vertically set on piston montant 221 on the piston head 224, described piston head 224 is horizontally set with in the oil groove 225 of described oil cylinder body 222, described piston montant 221 wore the top of oil cylinder body 222, described oil pipe 51 links to each other with hydraulic ram 22 by a fuel feed hole 226, and described fuel feed hole 226 is arranged on the top of piston head 224.
The invention still further relates to a kind of elevator load method of inspection, described method of inspection comprises the steps: that by a computer controlled one intelligent hydraulic control setup hydraulic ram being carried out fuel feeding loads, and the load that loads is to the car bottom of elevator; Pulling force sensor detects the load that hydraulic ram produces in real time, and feeds back to computing machine by the sensor display instrument; The sensor display instrument feeds back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust; The load that hydraulic ram is loaded is loaded on the warning ultimate load that the overload protection device of elevator sets, and observes the warning device reaction of overload protection device, judges whether this overload protection device is normal.
Described method of inspection specifically may further comprise the steps:
Step 10, in computing machine, set the warning ultimate load of elevator overload protecting device, and control an intelligent hydraulic control setup hydraulic ram is carried out the fuel feeding loading, described hydraulic ram fixes with a basic embedded board that is embedded in the elevator foundation ditch, and the piston of described hydraulic ram links to each other with the car bottom of elevator by a pulling force sensor again;
Step 20, hydraulic oil inject from the piston top in the hydraulic ram, piston is movable downwards, drive piston, so that the pulling force sensor that links to each other with piston is subject to a downward pulling force, and with the car bottom of this pull transfer to elevator, it is that the pulling force that car bottom is subject to feeds back on the sensor display instrument that the while pulling force sensor will detect the real-time load that produces of hydraulic ram;
Step 30, sensor display instrument feed back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust;
Step 40, in the process that hydraulic ram loads, if the load that loads within the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device is normal; If the load that loads is outside the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device need revise.
Sensor display instrument of the present invention shows the stressed size of pulling force sensor in real time, and with this signal feedback to computing machine, computing machine by the intelligent hydraulic control setup to hydraulic ram advance, oil return, so form a closed loop control system, until reach predetermined load at the bottom of pulling force sensor and the lift car, elevator overload, warning is reported to the police.The load that this device applies accurately, reliable, and can apply the load of arbitrary size to elevator according to concrete needs, the overload that is applicable to any bearing capacity elevator detects.
In addition, elevator load detecting device volume of the present invention is little, lightweight, is easy to carry, carries, and is simultaneously simple in structure, therefore simple operation, simple when the elevator overload device is tested; The present invention is simple to operation in a word, testing result is more accurate, has solved to detect elevator overload with counterweight and have that the counterweight carrying is loaded down with trivial details, labour intensity is large, inefficient problem.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present invention; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (6)
1. elevator load detecting device, described detecting device cooperate a lift car to use, and a car bottom of described lift car is erected at the top of a car bottom girder by two rubber blocks; It is characterized in that: described detecting device comprises at least one loading measurement group, a sensor display instrument, a computing machine and an intelligent hydraulic control setup, and described computing machine links to each other with sensor display instrument and intelligent hydraulic control setup respectively; Each described loading measurement group comprises a pulling force sensor, a hydraulic ram and a basic embedded board, the top of each described pulling force sensor is connected with one first steel rope, each described first steel rope wore described car bottom girder and was connected to car bottom, the lower end of each described pulling force sensor links to each other with a piston montant of described hydraulic ram by one second steel rope, the bottom of each described hydraulic ram is fixed on the corresponding basic embedded board, and each described basic embedded board all is embedded in the foundation ditch of described elevator; Each described pulling force sensor all is connected to the sensor display instrument, and each described hydraulic ram all is connected to the intelligent hydraulic control setup by an oil pipe.
2. a kind of elevator load detecting device according to claim 1, it is characterized in that: the group number of described loading measurement group is two groups, described two groups load the measurement groups respectively corresponding be arranged on car bottom girder both sides under.
3. a kind of elevator load detecting device according to claim 2, it is characterized in that: described car bottom is provided with two suspension ring corresponding with the first steel rope, each described suspension ring be separately positioned on corresponding basic embedded board directly over, each described first steel rope is fixed on the corresponding suspension ring.
4. each described a kind of elevator load detecting device according to claim 1 ~ 3, it is characterized in that: described hydraulic ram comprises an oil cylinder body and a piston, described piston comprises a piston head and is vertically set on piston montant on the piston head, described piston head is horizontally set with in the oil groove of described oil cylinder body, described piston montant wore the top of oil cylinder body, described oil pipe links to each other with hydraulic ram by a fuel feed hole, and described fuel feed hole is arranged on the top of piston head.
5. elevator load method of inspection is characterized in that: described method of inspection comprises the steps: that by a computer controlled one intelligent hydraulic control setup hydraulic ram being carried out fuel feeding loads, and the load that loads is to the car bottom of elevator; Pulling force sensor detects the load that hydraulic ram produces in real time, and feeds back to computing machine by the sensor display instrument; The sensor display instrument feeds back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust; The load that hydraulic ram is loaded is loaded on the warning ultimate load that the overload protection device of elevator sets, and observes the warning device reaction of overload protection device, judges whether this overload protection device is normal.
6. a kind of elevator load method of inspection according to claim 5, it is characterized in that: described method of inspection specifically may further comprise the steps:
Step 10, in computing machine, set the warning ultimate load of elevator overload protecting device, and control an intelligent hydraulic control setup hydraulic ram is carried out the fuel feeding loading, described hydraulic ram fixes with a basic embedded board that is embedded in the elevator foundation ditch, and the piston of described hydraulic ram links to each other with the car bottom of elevator by a pulling force sensor again;
Step 20, hydraulic oil inject from the piston top in the hydraulic ram, piston is movable downwards, drive piston, so that the pulling force sensor that links to each other with piston is subject to a downward pulling force, and with the car bottom of this pull transfer to elevator, it is that the pulling force that car bottom is subject to feeds back on the sensor display instrument that the while pulling force sensor will detect the real-time load that produces of hydraulic ram;
Step 30, sensor display instrument feed back to the value of thrust that detects on the computing machine again, and described computing machine continues control intelligent hydraulic control setup to fuel feeding or the oil return of hydraulic ram according to this value of thrust;
Step 40, in the process that hydraulic ram loads, if the load that loads within the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device is normal; If the load that loads is outside the error range value of warning ultimate load, overload protection device is reported to the police, and illustrates that overload protection device need revise.
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| CN2012103778612A CN102887406A (en) | 2012-09-29 | 2012-09-29 | Elevator load detection device and method thereof |
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| CN2012103778612A CN102887406A (en) | 2012-09-29 | 2012-09-29 | Elevator load detection device and method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680090A (en) * | 2013-12-20 | 2014-03-26 | 四川省特种设备检验研究院 | Elevator load alarm detection device |
| CN105173937A (en) * | 2014-06-13 | 2015-12-23 | 嘉兴市特种设备检测院 | Detector and detection method of elevator overload protection device |
| CN105253738A (en) * | 2015-10-23 | 2016-01-20 | 嘉兴市特种设备检验检测院 | Detection method for elevator overload protection device |
| CN105658559A (en) * | 2013-09-23 | 2016-06-08 | 迪娜赛乐电子公司 | Method and arrangement for calibrating the load control system of a lift |
| CN106698128A (en) * | 2016-11-30 | 2017-05-24 | 四川省特种设备检验研究院 | No-load lift overload measuring system and method |
| CN109775496A (en) * | 2019-02-22 | 2019-05-21 | 深圳市特种设备安全检验研究院 | No-load detects the device of lift car overload switch state |
| CN112660954A (en) * | 2020-12-17 | 2021-04-16 | 广东省特种设备检测研究院东莞检测院 | Loading module, elevator safety protection device performance detection system and method |
| CN113091966A (en) * | 2021-03-01 | 2021-07-09 | 中煤第七十二工程有限公司 | Load controller |
| CN114030962A (en) * | 2021-11-29 | 2022-02-11 | 成都市特种设备检验检测研究院 | Elevator no-load measuring instrument |
| CN114655808A (en) * | 2022-05-25 | 2022-06-24 | 河南省矿山起重机有限公司 | Method for calibrating elevator overload protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105658559A (en) * | 2013-09-23 | 2016-06-08 | 迪娜赛乐电子公司 | Method and arrangement for calibrating the load control system of a lift |
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| CN106698128A (en) * | 2016-11-30 | 2017-05-24 | 四川省特种设备检验研究院 | No-load lift overload measuring system and method |
| CN106698128B (en) * | 2016-11-30 | 2020-09-08 | 四川省特种设备检验研究院 | Overload measuring system and method for unloaded elevator |
| CN109775496A (en) * | 2019-02-22 | 2019-05-21 | 深圳市特种设备安全检验研究院 | No-load detects the device of lift car overload switch state |
| CN112660954A (en) * | 2020-12-17 | 2021-04-16 | 广东省特种设备检测研究院东莞检测院 | Loading module, elevator safety protection device performance detection system and method |
| CN113091966A (en) * | 2021-03-01 | 2021-07-09 | 中煤第七十二工程有限公司 | Load controller |
| CN114030962A (en) * | 2021-11-29 | 2022-02-11 | 成都市特种设备检验检测研究院 | Elevator no-load measuring instrument |
| CN114655808A (en) * | 2022-05-25 | 2022-06-24 | 河南省矿山起重机有限公司 | Method for calibrating elevator overload protection device |
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Application publication date: 20130123 |