CN103900675B - Novel lift weighing device detection method based on pliers-type lever mechanism - Google Patents

Novel lift weighing device detection method based on pliers-type lever mechanism Download PDF

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Publication number
CN103900675B
CN103900675B CN201410110460.XA CN201410110460A CN103900675B CN 103900675 B CN103900675 B CN 103900675B CN 201410110460 A CN201410110460 A CN 201410110460A CN 103900675 B CN103900675 B CN 103900675B
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China
Prior art keywords
pliers
pliers type
elevator
type leverage
lift
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Expired - Fee Related
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CN201410110460.XA
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Chinese (zh)
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CN103900675A (en
Inventor
张伟
曾钦达
潘健鸿
黄春榕
张健
林景彩
王宗杰
魏峰
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FUZHOU XIN AUTOLAB TECHNOLOGY Co Ltd
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FUZHOU XIN AUTOLAB TECHNOLOGY Co Ltd
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Priority to CN201410110460.XA priority Critical patent/CN103900675B/en
Publication of CN103900675A publication Critical patent/CN103900675A/en
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Publication of CN103900675B publication Critical patent/CN103900675B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a novel lift weighing device detection method based on a pliers-type lever mechanism. According to the method, a lift car is required to be stopped at a non-flat layer position, the pliers-type lever mechanism in the method is used for exerting clamping force on the bottom of the lift car, and therefore the effect that a lift load is simulated at the bottom of the lift car is achieved. The pliers-type lever mechanism is composed of fixed arms and movable arms, the fixed arms and the movable arms are installed on a fixed support, the fixed arms have no motion relative to the support in the working process, and the movable arms are driven by a hydraulic system and can be connected with the support through pins and rotate relative to the support, thereby outputting the clamping force. According to the different types of lifts, different car bottom sizes of the lifts and different structures of the lifts, the fixed arms and the movable arms of the pliers-type lever mechanism are telescopic and adjustable so as to achieve the flexible function of the method. The hydraulic system is controlled by a single-chip microcomputer so as to guarantee continuous adjustable output of the clamping force. The novel lift weighing device detection method is easy to operate and simple in structure, equipment is convenient to carry, the defect that a test is conducted by carrying standard weights to reach a rated load of a lift at present is eliminated, labor force is librated, manpower and financial resources are greatly saved, and the method is suitable for detecting lift car weighing devices in annual maintenance of most lifts.

Description

A kind of elevator meausring apparatus new detecting method based on pliers type leverage
Technical field
The present invention relates to the method that detection is placed in elevator car bottom meausring apparatus, especially relate to one kind and adopt pliers type lever The new method that mechanism is detected to elevator car bottom meausring apparatus.
Background technology
Elevator is to construct accurate means of transport up and down in building, is collection building, machinery, integrated the setting of electrical equipment Standby, the regularly maintenance of systematicness maintenance and specification not only can ensure that the use longevity of elevator safety reliability service, elongated component Life, and can in time or advanced find fault or hidden danger, and then reduce elevator faults to greatest extent it is ensured that the safety of equipment Can be with reliable utilization.
According to the rules, when sedan-chair internal load exceedes nominal load capacity(Exceed rated load 10%, and be not less than 75kg)When elevator Startup optimization should be unable to, be simultaneously emitted by the sound and light warning signal, this alarm device is referred to as meausring apparatus.Meausring apparatus is electricity A kind of important protection device of ladder, particularly under elevator no driver operation state, due to people to elevator key property less Understand, run into car slipping or other improper working orders, mostly blindly past flight from cab, thus leading to much should not send out Raw tragedy.And overload protection function is for guaranteeing the personal safety of boarding personnel and the goods of elevator conveying and lift facility Inherently safe etc. is all very important.
Meausring apparatus is generally located in car floor, and basic structure is to install several microswitch on bottom girder(Contact)Or weight Sensor, when the active car being placed on elastomeric material(Car floor)When being increased to bottom offset due to load, touch microswitch and send out Go out signal, or the continuous signal corresponding with load is sent by sensor.
According to TSG T5001-2009《Elevator is using management and maintaining rule》The content of maintenance work and will Ask, car weighing device must be detected it is ensured that its accurate and effective in the maintenance of elevator annual maintenance.In actually detected process In, the rated load generally requiring to reach elevator by carrying standard test weight is tested, and consumes substantial amounts of manpower financial capacity, And inefficiency.Therefore, it is necessary to research and develop a kind of portable meausring apparatus testing equipment, solve emphatically following asking Topic:
(1)Energy continuously adjustabe stable output elevator detection simulation load, realize intellectualized detection;
(2)Testing equipment equipment freely can be adjusted according to detection object, realizes flexibility detection;
(3)Testing equipment integral disassembly, assembly is convenient or capable of expansion and contraction, realizes portable inspectiont.
Content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of elevator meausring apparatus detection new method, The method by pliers type leverage it is desirable to lift car is parked in non-level position, by pliers type leverage to car floor Apply clamping force and carry out simulant elevator load, equipment freely can be adjusted according to detection object, exportable continuously adjustable loading force, and Equipment overall weight is light, foldable, easy to carry.
The technical solution adopted in the present invention is:With car floor meausring apparatus as detection object, in order to realize to lift car The quantitation on floor loads, and not only may be implemented in car floor simulant elevator load by pliers type lever system it is often more important that this thick stick Lever system utilizes the clamping force positioning of itself.By closing that single-chip microcomputer, pressure transducer, hydraulic pump, double acting hydraulic cylinder form Ring hydraulic control system realizes the continuously adjustabe of testing equipment equipment simulation load.Due to elevator model and manufacturer Difference, lift platform structure there is also difference, in order that the testing equipment of elevator meausring apparatus has versatility, can flexible inspection Survey all kinds of elevators, simulation load equipment adopts multiple-degree-of-freedom mechanism to design, and can achieve and freely adjusts.According to ergonomicss Simple to operate, conveniently moving, take up room the principle such as little, between testing equipment integrally each parts using foldable, turn over Turn, the connected mode such as flexible realizes effectively connection it is ensured that the portability of this equipment.
The present invention compared with prior art, has an advantageous effect in that:
(1)The maximum difference of the present invention and prior art be to have abandoned completely existing by carrying standard test weight The method tested come the rated load to reach elevator, using the advantage of pliers type leverage, is set using simple, light For just applying required load to cage bottom, the upper ton counterweight that instead of the required carrying of existing method is it is only necessary to 1-2 name operates Personnel just can complete the detection to elevator meausring apparatus, and the input of manpower financial capacity is therefore greatly reduced.
(2)Closed loop hydraulic control system by single-chip microcomputer, pressure transducer, hydraulic pump, double acting hydraulic cylinder composition is real The continuously adjustabe of existing testing equipment equipment simulation load is it is only necessary to press corresponding control knob, equipment on control panel Just can voluntarily load according to default program it is achieved that intelligentized control method, eliminate the existing side using artificial swing weight-adding The deficiency that method takes time and effort and precision is not high.
Brief description
Fig. 1 is the operation principle schematic diagram of the present invention.
Fig. 2 is pliers type leverage schematic diagram.
Fig. 3 is the equipment schematic perspective view of the present invention.
Fig. 4 is sensor pressing plate and screw micro-adjustment mechanism part-structure schematic diagram.
Reference:Hydraulic power unit 1, depression bar 2, double acting hydraulic cylinder 3, swing arm 4, pin 5, pull bar 6, screw micro-adjustment mechanism 7th, sensor pressing plate 8, car floor 9, lower roof plate 10, determine arm 11, display control unit 12, scissors lift platform 13.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description:
As shown in accompanying drawing 1 and accompanying drawing 2, testing equipment that the present invention is operationally used includes hydraulic power unit, depression bar, double Acting cylinder, swing arm, pin, pull bar, screw micro-adjustment mechanism, sensor pressing plate, lower roof plate, determine arm, display control unit, cut Blade lifting platform etc..
Embodiment 1, a kind of new method of elevator meausring apparatus detection, its testing equipment is by hydraulic power unit, depression bar, double acting Hydraulic cylinder, swing arm, determine arm, pin, pull bar, screw micro-adjustment mechanism, sensor pressing plate, lower roof plate, display control unit, scissor Lifting platform etc. forms;Wherein:Pliers type leverage, by determining arm 11 and swing arm 4 forms, is determined arm 11 and swing arm 4 is arranged on by pull bar 6 and depression bar 2 composition support on, determine arm 11 in work process with respect to support without motion, swing arm 4 is by double acting hydraulic cylinder 3 He The hydraulic system of hydraulic power unit 1 composition drives, and being connected by pin 5 can be with respect to holder pivots, thus exporting clamping force.
Embodiment 2, a kind of elevator weigh the new method of detection, wherein:Pliers type leverage determine arm 11 and swing arm 4 is equal For telescopic arm, screw micro-adjustment mechanism 7 can carry out up-down adjustment to sensor pressing plate 8, and gripper shoe 10 is also adjustable within the specific limits, Whole pliers type leverage is arranged on scissors lift platform truck 13, thus on whole pliers type leverage being carried out Lower regulation.Remaining is with embodiment 1.
Embodiment 3, a kind of elevator weigh the new method of detection, wherein:Hydraulic system is controlled by display control unit 12, shows Show control unit 12 with single-chip microcomputer as core, obtain the signal that sensor pressing plate 8 is sent, control electromagnetic valve in hydraulic power unit 1 Break-make, thus control the action of double acting hydraulic cylinder 3.Remaining is with embodiment 1 or 2.
Embodiment 4, a kind of elevator weigh the new method of detection, wherein:During detection, lift car is parked in non-level position, Clamping force is applied to car floor using the pliers type leverage in this method, thus realizing in cage bottom simulant elevator load; Pliers type leverage provides power by hydraulic system, thus exporting clamping force;According to the different model of elevator, different car floor Size and structure, pliers type leverage can achieve flexible adjustable, flexibility function to realize the method;Hydraulic system is using single Piece machine controls it is ensured that the continuously adjustable output of clamping force.Remaining is with embodiment 1 or 2.
The method of work of the present invention is as follows:
Before to the detection of elevator meausring apparatus, lift car is parked in non-level position, opens terraced door, will by operator Testing equipment is pushed into ladder in front of the door and by swing arm 4 and determines arm 5 and extend to Len req.The height of adjustment lower roof plate 10 is to suitable position Put, pliers type leverage is directed at car floor 9, lifting scissors lift platform 13 to lower roof plate 10 is contacted with car floor 9 bottom, adjustment Screw mechanism 7 is to sensor pressing plate 8 and car floor 9 upper contact.By the load selection key input in display control unit 12 The load rank of institute's detection elevator, presses prestrain button, and display control unit 12 sends command signal to hydraulic power unit 1, electricity Magnetic reversal valve left end electric magnet DT1 obtains electric, and to left movement, pressure oil is flowed into change-over valve core by the rodless cavity of two-way cylinder 3, In rod chamber, hydraulic oil is back to fuel tank in hydraulic power unit 1 simultaneously, and the piston of two-way cylinder 3 rises, cause swing arm 4 with respect to Pin 5 rotates, so that pliers type leverage is clamped, its clamping force feeds back to display control list by sensor pressing plate 8 On the display screen of unit 12.
When added load is close to elevator rated load, display control unit 12 sends command signal again to hydraulic power unit 1, solenoid directional control valve left end electric magnet DT1 dead electricity, during change-over valve core is returned, pressure oil stops flowing, oil cylinder pressurize, pliers type thick stick Linkage keeps clamping force constant.Then pass through the crawl load button in display control unit 12, realize to added load Fine setting, its loading principle is similar with above-mentioned prestrain, and only load capacity added by crawl is less every time.Crawl loads until elevator sends Overload warning, writes down the load registration on now display screen, requires to compare by the technical parameter with detected elevator, you can sentence Whether this elevator meausring apparatus disconnected is working properly.
After completing to load work, press the unloading button in display control unit 12, you can send command signal to hydraulic pressure Pumping plant 1, solenoid directional control valve right-hand member electric magnet DT2 obtains electric, and change-over valve core moves right, and pressure oil is by the nothing of two-way cylinder 3 Rod cavity is back to fuel tank in hydraulic power unit 1, and oil cylinder piston declines, so that pliers type leverage unclamps, completes to car floor Unloading.After completing detection, by swing arm 4 with determine arm 11 and retract, by spiral guiding mechanism 7, lower roof plate 10 and scissors lift platform 12 Playback, cuts off the electricity supply, you can take away detection scene by operator.
Using the testing equipment of this elevator meausring apparatus detection method, can exchange 170V ~ 220V voltage under normal work, The continuously adjustable load of 0 ~ 1500kg is applied to lift car bottom it is adaptable to the cage bottom of thick 250mm ~ 450mm, load is divided Resolution is 0.5kg, has reliable mechanical protection and electric protective device, and main screw lift is light, small volume, and measurement process is convenient fast Victory, safe and reliable.
Above in conjunction with accompanying drawing, the present invention is exemplarily described it is clear that the present invention implements is not subject to aforesaid way Restriction, as long as employing method of the present invention design and the various transformations that carry out of technical scheme, or not improved direct application In other occasions, all within protection scope of the present invention.

Claims (4)

1. a kind of elevator meausring apparatus new detecting method based on pliers type leverage, its testing equipment includes:Hydraulic power unit, Depression bar, double acting hydraulic cylinder, swing arm, determine arm, pin, pull bar, screw micro-adjustment mechanism, sensor pressing plate, lower roof plate, display control Unit, scissors lift platform it is characterised in that:Pliers type leverage by determining arm (11) and swing arm (4) forms, determine arm (11) and Swing arm (4) is arranged on the support being made up of pull bar (6) and depression bar (2), determines arm (11) and no transport with respect to support in work process Dynamic, swing arm (4) is driven by the hydraulic system that double acting hydraulic cylinder (3) and hydraulic power unit (1) form, and being connected by pin (5) can With respect to holder pivots, thus exporting clamping force, described pliers type leverage stretches adjustable, and described display control unit is a little Dynamic load button.
2. a kind of elevator meausring apparatus new detecting method based on pliers type leverage according to claim 1, it is special Levy and be:Pliers type leverage determine arm (11) and swing arm (4) is telescopic arm, screw micro-adjustment mechanism (7) can be to sensor Pressing plate (8) carries out up-down adjustment, and gripper shoe (10) is also adjustable within the specific limits, and whole pliers type leverage is arranged on shears On formula lifting platform truck (13), thus up-down adjustment can be carried out to whole pliers type leverage.
3. a kind of elevator meausring apparatus new detecting method based on pliers type leverage according to claim 1, it is special Levy and be:Hydraulic system is controlled by display control unit (12), and display control unit (12), with single-chip microcomputer as core, obtains sensing The signal that device pressing plate (8) is sent, controls the break-make of electromagnetic valve in hydraulic power unit (1), thus controlling the dynamic of double acting hydraulic cylinder (3) Make.
4. a kind of elevator meausring apparatus new detecting method based on pliers type leverage according to claim 1, it is special Levy and be:During detection, lift car is parked in non-level position, using the pliers type leverage in this method, car floor is applied Clamping force, thus realize in cage bottom simulant elevator load;Pliers type leverage provides power by hydraulic system, thus defeated Go out clamping force;According to the different model of elevator, different car floor sizes and structure, achievable the stretching of pliers type leverage can Adjust, to realize the flexibility function of the method;Hydraulic system adopts Single-chip Controlling it is ensured that the continuously adjustable output of clamping force.
CN201410110460.XA 2014-05-12 2014-05-12 Novel lift weighing device detection method based on pliers-type lever mechanism Expired - Fee Related CN103900675B (en)

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN105156045B (en) * 2015-10-22 2017-12-26 北京海格立斯智能装备技术有限公司 Hydraulic tongs automatic pilot
CN106840352A (en) * 2017-02-15 2017-06-13 广州日滨科技发展有限公司 Elevator weighing calibration equipment
CN108502660B (en) * 2017-02-28 2019-10-18 上海三菱电梯有限公司 Elevator meausring apparatus detection device and detection method
CN111559681B (en) * 2020-05-27 2021-11-05 江苏省特种设备安全监督检验研究院 Balance coefficient tester based on virtual instrument and testing method thereof
CN113188820B (en) * 2021-04-22 2022-04-12 王聿波 Elevator load detection device based on lever principle

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C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Zhang Wei

Inventor after: Zeng Qinda

Inventor after: Pan Jianhong

Inventor after: Huang Chunrong

Inventor after: Zhang Jian

Inventor after: Lin Jingcai

Inventor after: Wang Zongjie

Inventor after: Wei Feng

Inventor before: Xiao Qian

Inventor before: Wu Fangbo

Inventor before: Zhang Xinwei

COR Change of bibliographic data
TA01 Transfer of patent application right

Effective date of registration: 20170106

Address after: Gulou District of Fuzhou City, Fujian Province, China 350003 big Street North Road No. 45, No. 2 Building 5 layer

Applicant after: FUZHOU XIN AUTOLAB TECHNOLOGY CO., LTD.

Address before: 330013 Jiangxi Province, Nanchang City Economic Development Zone Changbei East Shuanggang Street No. 808

Applicant before: East China Jiaotong University

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CF01 Termination of patent right due to non-payment of annual fee