CN100520340C - Test device for safety lock of high-rise working cradle - Google Patents

Test device for safety lock of high-rise working cradle Download PDF

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Publication number
CN100520340C
CN100520340C CNB2006101345438A CN200610134543A CN100520340C CN 100520340 C CN100520340 C CN 100520340C CN B2006101345438 A CNB2006101345438 A CN B2006101345438A CN 200610134543 A CN200610134543 A CN 200610134543A CN 100520340 C CN100520340 C CN 100520340C
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CN
China
Prior art keywords
safety lock
test
supporting leg
platform
iron
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CNB2006101345438A
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Chinese (zh)
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CN1971236A (en
Inventor
张金生
张华文
赵鹏华
秦可新
王福绵
杨焕珍
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辽宁省安全科学研究院
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Priority to CNB2006101345438A priority Critical patent/CN100520340C/en
Publication of CN1971236A publication Critical patent/CN1971236A/en
Application granted granted Critical
Publication of CN100520340C publication Critical patent/CN100520340C/en

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Abstract

An experimental unit of suspended basket security keylock in high-lift operation relates to an experimental unit that comprises: supporting leg, dropped iron, parallel, pusher clusters, elastic machine, sensor, upper beam, elevator, bridging beam, power distribution wire, power distribution control pedestal, safe tension monitoring device, platform horizontal monitoring mechanism. The upper beam and the bridging beam are mounted on the upper part of supporting leg via flanged connection, the elevator is mounted on the beam, the elastic machine and parallel are hung on the elevator, the elastic machine is connected with the pusher clusters via brace, the dropped iron is mounted under the parallel equipped with additional weight iron, the suspended buffer and sensor are located on the beam, the safe tension monitoring device consists of tension sensor and secondary instrument, the upper beam is case welded by steel sheet; The unit reinforces quality inspection for security keylock, eliminates the accident potential caused by quality problems of security keylock. The equipment and personal safety can be safeguarded effectively.

Description

Test device for safety lock of high-rise working cradle

Technical field

The present invention relates to a kind of test unit, particularly relate to a kind of test unit of safety lock of high-rise working cradle.

Background technology

Aerial work basket is the indispensable manned equipment of external wall finishing, cleaning and upkeep operation, in the external wall construction, obtained widespread use in recent years, its work characteristics is as required with people and load VTOL (vertical take off and landing) in large space very, belongs to the highly dangerous operation.In the external wall decoration construction, the personnel casualty accidents that is caused by aerial work basket happens occasionally, and wherein main reason is the important safety parts owing to aerial work basket--and-safety lock functional reliability is unstable to be caused.So the lock quality inspection that tightens security is vital.The safety lock test is one of most important Interventions Requested of regulation among the state compulsory standard GB19155-2003 " aerial work basket ", no matter be pattern check or factory inspection, all must test to lock rope speed, lock rope angle and the lock rope distance of safety lock, the pattern check also should be carried out safety lock and leave standstill the slippage test, in addition, also defined safety lock in the standard and allowed impulsive force, therefore, platform falls and also should measure the impulsive force that wire rope (safety lock) produces.But can satisfying fully exactly among the state compulsory standard GB19155-2003 " aerial work basket " of lacking at present stipulated the test unit safety lock testing requirements, perfect in shape and function.At present, domestic research to this device also is not very successful, lack a kind of approved product, the manufacturing enterprise of aerial work basket and safety lock, for the product of oneself producing is carried out factory inspection, all made some check test devices by oneself, but function is all comparatively single, generally can only measure lock rope distance, and can't reach the operating condition of test requirement of the left and right sides unbalance loading of standard code.

Summary of the invention

The object of the present invention is to provide a kind of test device for safety lock of high-rise working cradle, select low speed loop chain motor hoist for use, directly be arranged on the door frame crossbeam, realize suspended chain and the moment disengaging of simulation suspension platform with electronic pusher, this device has been strengthened the quality inspection to safety lock, elimination is effectively ensured equipment and personal safety because of the accident potential that the safety lock quality problems cause.

The objective of the invention is to be achieved through the following technical solutions:

Test device for safety lock of high-rise working cradle, include supporting leg, weigh down iron, paralell, the pusher group, tightener, sensor, put the beams in place, hoister, crossbeam, power supply wiring and distribution control stand, safe pulling force mechanism for monitoring, platform level monitoring mechanism forms, described supporting leg top has been linked and packed through flange and has put the beams in place and crossbeam, installing hoister on the upper beam, tightener and paralell have been mounted on the hoister, tightener links to each other with the pusher group through pull bar, be provided with bob iron below the paralell, weigh down on the iron balance weight iron is housed, also be provided with suspension type impact damper and pulling force sensor on the upper beam, safe pulling force mechanism for monitoring mainly is made up of pulling force sensor and secondary instrument, puts the beams in place and is welded into casing with steel plate; Paralell is the box-shaped platform that is welded into steel plate, and platform level monitoring mechanism is made up of level meter and secondary instrument, and platform is connected with the suspension type impact damper.

Described test device for safety lock of high-rise working cradle, supporting leg is welded into casing with steel plate, and power supply wiring passes supporting leg and is connected to electricity consumption place, and the top of supporting leg is provided with travel switch.

Described test device for safety lock of high-rise working cradle, pulling force sensor are suspended on the bottom of putting the beams in place, and connect the safety lock wire rope.

Described test device for safety lock of high-rise working cradle, tightener are by the fluid power pusher, pull bar, and plate, plug, socket is formed.

Described test device for safety lock of high-rise working cradle, described pull bar is the reinforcement member of being made by steel plate, plate is that steel plate is made, plate matches with pull bar, plug, plug is the fag end that is processed into carrying spigots, be connected and fixed with hoisting rope, socket be with square steel make plate, plug the seat, be weldingly fixed on the platform.

Advantage of the present invention and effect are:

1. can to reach state compulsory standard GB19155-2003 " aerial work basket " be target to the testing requirements of safety lock to this device, all meets the regulation requirement of national standard to aspects such as measurement result, measuring accuracy from the theory of testing, measuring method.

2. this device is a foundation with standard GB 3811-83 " hoist design specification ", GB6067-85 " safety rules for lifting appliances " etc. all at aspects such as structural design, mechanism's selections, and having demonstrated fully us is the design concept of criterion with the national standard.

3. this device has adopted sensor technology and data recording and analytical instrument and software aspect Design of Test System, makes test process realize electronic control, measure and record automatically.

4. this device is simulated the lift stroke 1m of suspension platform, can realize simulating the above state in 8 ° of angles of suspension platform inclination, the twin shaft angular transducer is adopted in the measurement of angle of lock rope, available computers is monitored the angle of inclination of simulation suspension platform in real time, the measurement range of sensor reaches ± and 15 °, the simulation suspension platform pitch angle that can satisfy standard code fully is not more than 8 ° requirement.

5. this device can electronic control be simulated the personal operating mode of falling of suspension platform, realizes safety lock impulsive force and the measurement of locking the distance of restricting, lock rope speed with the force transducer and the stay-supported displacement transducer in parallel with hoisting rope that are serially connected in the safety rope simultaneously.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present invention;

Fig. 2 is the left view of one-piece construction synoptic diagram of the present invention.

Embodiment

With reference to the accompanying drawings embodiments of the invention are elaborated.

Supporting leg 4 usefulness steel plates of the present invention are welded into casing, mainly play a supportive role.Power supply wiring 23 passes supporting leg and delivers to electricity consumption place.Supporting leg flange steel plate is weldingly fixed on the supporting leg lower surface, adds spring pad 2 with ground 1 usefulness bolt 3 and is connected and fixed.The 16 usefulness steel plates of putting the beams in place are welded into casing, tie with supporting leg and connect the location, support hoister 17 and crossbeam 21.Hoister 17 casings are weldingly fixed on the middle part interior plate eccentric part of putting the beams in place, and hoister 17 tops are assemblied on the axle 18, and axle 18 strings are in the axle sleeve 19 and axle sleeve 20 of two symmetries.Crossbeam 21 usefulness channel-section steel snappings are welded into casing, are weldingly fixed between two hoister casings, locate two and put the beams in place and four supporting legs.On the bob iron 5 balance weight iron 6 (counterweight) being housed is the standard test weight that is processed into every 100kg with steel plate, totally 10, is used for experiment table carries out safety lock under different loads various tests.Having mounted hanger 8 on the balance weight iron link plate 7 fixes through bolt 9.Bury anchoring bolt in ground 1 concrete underground and weld flat-face flange regularly, it supports testing table, bear testing table and impact warranty test platform stability.Paralell 10 is the box-shaped platforms that are welded into steel plate, replaces hanging basket with it, makes testing table carry out various tests.Tightener 12 is by the fluid power pusher, pull bar, and plate, plug, socket etc. are partly formed: pull bar is to subtract the stroke force-increasing mechanism with the secondary that steel plate is made, it is increased to 160kg power with 22kg power and retracts plate and reach loose hoisting rope; Plate is that steel plate is made, and it matches with pull bar, plug, is used for loose hoisting rope or fixedly hoisting rope effect; Plug is that it and hoisting rope are connected and fixed with the fag end of 45# round steel processing belt socket, and when it engages with plate, but lifting platform when leaving with plate, is in the slack rope state.It mainly bears shearing force; Socket is the plate that is processed into square steel, the seat of plug.It is weldingly fixed on the platform, platform is promoted or falls.Pusher group 11 is the power of loose hoisting rope.It is by the control of three-phase 380V alternating current, and safety lock 13 also is the hanging basket detent, and it must also cry in the braking distance 100mm out of service at the situation lower platform falling distance of hoisting rope pine.Safety lock must be controlled platform work medium dip angle and be not more than 8 ° otherwise out of service.Leave standstill 10min during static load, any sliding phenomenon must not be arranged.Safety lock is demarcated valid period and is not more than 1 year.Safety pin adopts 8.3mm the special steel wire rope connects.Hoister is a DHP type low speed loop chain motor hoist, rated load weight 2000kg, pulling speed 1.85m/ branch, lifting altitude 3m, power of motor 750W, 1380 rev/mins of motor speeds, voltage 380V, weight 42kg, use 2 hoisters to be hung in the inboard of putting the beams in place, 2 loop chain spacing 2m, loop chain is hung on platform, mainly mention platform, make the safety lock performance test.Supporting leg 4 dragging plate mechanisms are inserted in four inboard legs respectively with four plankers, during use planker are pulled out, and set level platform, and the time spent does not push in planker, does not influence normal experiment, and planker is pulled out, advanced all location facilities, guarantee safety.Travel switch is provided in a side of the top of supporting leg 4, and platform rises and bumps the travel switch rocking arm, just outage immediately, and hoister can't rise again, and the protection platform hoists too high.Can normal operation after the prompting hoister descends.Safe pulling force mechanism for monitoring mainly is made up of pulling force sensor 15 and secondary instrument.Pulling force sensor is suspended on the bottom of putting the beams in place, and connects the safety lock wire rope.Safety rope tension variations during main monitoring safety lock braking, braking time, the concrete pitch of braking distance and figure can show in secondary instrument, also printablely go out physical resource.Platform level monitoring mechanism is that level meter 22 and secondary instrument are formed, and the safety angle situation of safety lock control platform in the variation at the angle of inclination of platform and the platform work can show and print data when mainly monitoring the safety lock braking in secondary instrument.Power supply wiring 23 mainly advances cubicle switch by power lead, three-phase and four-line, pulling force sensor supplied with by panel box electricity gadgetize operating platform and monitoring operator's console, monitoring operator's console and level meter, secondary instrument, mechanical handling platform are supplied with two hoister plugs, travel switch.Operator's console is the control stand that safety lock monitoring personnel assign instruction, and its composition is as compositions such as voltage table, clock and watch, reometer, band lamp knob, contactor, earth leakage protection, mutual inductor, 220V socket, terminal box, operator's console shells.Voltage table is a power switch by the concrete data of logical back display voltage, and operating personnel should operate in rated voltage ± 10% scope, otherwise influence the serviceable life of testing table.Reometer is to show hoister, the size of current during pusher work, and operating personnel can judge by reometer whether the power section running is normal.Earth leakage protection is provided in a side of the total air switch of operator's console, plays leakage tripping outage effect.Mutual inductor is the auxiliary products of voltage, reometer.The 220V socket be for when monitoring illuminating lamp or electric tool use, terminal box is the junction block use for actuating unit, is convenient to administer and maintain.Operator's console is to make the desk shape, console panel and the two one of power distribution cabinet be combined into operator's console, be convenient to safeguard.

Check test safety lock braking distance and angle of inclination and reliability during operation, testing laboratory's general supply is sent electricity then, send electricity with switchboard power supply air switch below the operator's console again, clicks power supply and drives button, the power contactor adhesive, power supply is driven button to be had brightly, and the voltage table display voltage is installed in accordance with regulations by being tested safety lock, electric mortise lock is inserted, preliminary work performs the back by electric bell before the test, and start hoister and electric mortise lock before must be by electric bell at every turn, and the caution people around notes and will leave testing table.Pin and two rise switch, two hoisters are mentioned platform and are hoisted simultaneously, rise and are raised to certain altitude, send that hand is two to rise switch, and platform rests on the space, and suspension type impact damper 14 is connected platforms, pin singly to rise or singly fall switch levelling platform level.Need the experimental safe locking moving apart from the time, click play button, pusher is extracted latch immediately, the single-rope hoisting rope is in disconnected rope (freedom) state, platform tilts to fall immediately, this moment, safety lock pinned safety rope immediately, platform is aloft stopped, safety lock braking distance, braking time, the platform inclination angle of this moment, safety rope tension variations curve negotiating platform level meter and safety rope sensor in the braking time, in secondary instrument, show, and print concrete data and qualified conclusion whether.Remake twice as qualified, continuous three times qualified be that this is qualified, just should regard as underproof safety lock as once defective.

Claims (4)

1. test device for safety lock of high-rise working cradle, include supporting leg, weigh down iron, paralell, the pusher group, tightener, sensor, put the beams in place, hoister, crossbeam, power supply wiring and distribution control stand, safe pulling force mechanism for monitoring, platform level monitoring mechanism forms, it is characterized in that, described supporting leg (4) top is through flange be linked and packed upper beam (16) and crossbeam (21), upper beam (16) is gone up installing hoister (17), tightener (12) and paralell (10) have been mounted on the hoister, tightener links to each other with pusher group (11) through pull bar, be provided with below the paralell and weigh down iron (5), weigh down on the iron (5) balance weight iron (6) is housed, also be provided with suspension type impact damper (14) and pulling force sensor (15) on the upper beam (16), safe pulling force mechanism for monitoring mainly is made up of pulling force sensor (15) and secondary instrument, and put the beams in place (16) are welded into casing with steel plate; Paralell (10) is the box-shaped platform that is welded into steel plate, and platform level monitoring mechanism is made up of level meter (22) and secondary instrument, and platform is connected with suspension type impact damper (14).
2. test device for safety lock of high-rise working cradle according to claim 1 is characterized in that, supporting leg (4) is welded into casing with steel plate, and power supply wiring (23) passes supporting leg and is connected to electricity consumption place, and the top of supporting leg (4) is provided with travel switch.
3. test device for safety lock of high-rise working cradle according to claim 1 is characterized in that, pulling force sensor (15) is suspended on the bottom of putting the beams in place, and connects the safety lock wire rope.
4. test device for safety lock of high-rise working cradle according to claim 1 is characterized in that, tightener (12) is by the fluid power pusher, pull bar, and plate, plug, socket is formed.
CNB2006101345438A 2006-12-07 2006-12-07 Test device for safety lock of high-rise working cradle CN100520340C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006101345438A CN100520340C (en) 2006-12-07 2006-12-07 Test device for safety lock of high-rise working cradle

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Application Number Priority Date Filing Date Title
CNB2006101345438A CN100520340C (en) 2006-12-07 2006-12-07 Test device for safety lock of high-rise working cradle

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CN1971236A CN1971236A (en) 2007-05-30
CN100520340C true CN100520340C (en) 2009-07-29

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832021B (en) * 2010-02-11 2011-07-20 中冶实久建设有限公司 Safety device for vertical transport in water tower and chimney slip form construction
CN101886720A (en) * 2010-06-30 2010-11-17 广东省基础工程公司 Device for shifting and butting large-caliber and large-tonnage pipes in pipe pit
CN102101622A (en) * 2010-09-20 2011-06-22 江苏申锡建筑机械有限公司 Fixed rotatable well conveying device
CN102866009A (en) * 2012-09-27 2013-01-09 无锡华科机械设备有限公司 Intelligent rope breaking tester for safety lock
CN103792102A (en) * 2014-01-07 2014-05-14 山东齐鲁城市建设管理有限公司 High-place working handing basket safety lock test device
CN103787245B (en) * 2014-01-17 2016-01-20 宁波大学 A kind of cradle safety lock checking system and method for inspection
CN105277353A (en) * 2015-11-20 2016-01-27 天津市中环电子计算机有限公司 A high-altitude lifting basket type machine safety lock testing experiment table and testing method
CN106289742B (en) * 2016-08-04 2019-04-16 无锡市计量检定测试中心 The detection experimental rig and test method of high-lift operation hanging cradle safety lock
CN106441835B (en) * 2016-08-31 2018-12-07 江苏能建机电实业集团有限公司 A kind of broken rope protector test platform and its working method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845866A (en) * 1972-09-28 1974-11-05 Gottwald Kg Leo Telescopic crane jib

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845866A (en) * 1972-09-28 1974-11-05 Gottwald Kg Leo Telescopic crane jib

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