CN204454309U - A kind of rapid and convenient detects load lifting limiter equipment - Google Patents

A kind of rapid and convenient detects load lifting limiter equipment Download PDF

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Publication number
CN204454309U
CN204454309U CN201520099144.7U CN201520099144U CN204454309U CN 204454309 U CN204454309 U CN 204454309U CN 201520099144 U CN201520099144 U CN 201520099144U CN 204454309 U CN204454309 U CN 204454309U
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CN
China
Prior art keywords
shock absorber
arm
crossbeam
load lifting
rapid
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Expired - Fee Related
Application number
CN201520099144.7U
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Chinese (zh)
Inventor
余志林
单科科
毛小玲
王玉龙
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Special Equipment Inspection Center Quzhou City
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Special Equipment Inspection Center Quzhou City
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Priority to CN201520099144.7U priority Critical patent/CN204454309U/en
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Publication of CN204454309U publication Critical patent/CN204454309U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of rapid and convenient and detects load lifting limiter equipment, and it comprises clump weight, crossbeam, left arm, right arm, left shock absorber, right shock absorber, force transducer; Clump weight is arranged on the below of crossbeam; The upper center of crossbeam is provided with suspension ring; Left arm, right arm are separately positioned on the two ends of crossbeam; Left shock absorber is arranged on left arm one end away from crossbeam, and right shock absorber is arranged on right arm one end away from crossbeam; Force transducer is arranged between left arm and left shock absorber and/or between right arm and right shock absorber.The beneficial effects of the utility model are: the utility model is simple and light and easy and simple to handle, thus can not carry by other weight-lifting equipments.

Description

A kind of rapid and convenient detects load lifting limiter equipment
Technical field
The utility model relates to a kind of rapid and convenient and detects load lifting limiter equipment.
Background technology
LOAD CELLS detects hoisting weight, and output signal is amplified by amplifier.Signal after amplification sends into Weighting and Controlling instrument.Weighting and Controlling instrument compares differentiation according to weight signal and " pre-alarm ", " delayed alarm and control " and " report to the police immediately and control " three pivot weight signal sets values, exports corresponding state control signal.Three pivot weight signal sets values are set in 90%, 105% and 110% of rated load respectively.
In the TSG Q7015-2008 " elevator machinery periodical survey rule " promulgated on August 7th, 2008, B9.6.2 equipment in use carries out Reliability of Microprocessor inspection; Rated load three kinds of test mass of 0.9 times, 1.05 times and 1.1 times just must be provided when will carry out Reliability of Microprocessor inspection to it in actual survey process respectively, but often applying unit is difficult to provide suitable test mass, in addition because steel rope is consumable accessory, more change steel rope need remove load lifting limiter, and reinstall debugging again after changing, so the reliability of load lifting limiter carries out test mass test again, so often increases the weight of the economical burden of enterprise.
Based on above-mentioned actual conditions, after No. 141 " TSG Q7015-2008 " elevator machinery periodical survey rule " number one amendment " revision in 2010, B9.6.2 is adjusted to equipment in use and checks whether and arrange load lifting limiter, whether by short circuit.This measure is the caving-in bash in reality testing, also reflects the urgency and essentiality that work out one " can rapid and convenient detect the equipment of crane load killer precision and the situation of installation " simultaneously.
We investigate, retrieved the present situation of carrying out correlative study both at home and abroad in lifting reason killer context of detection.The type test and all having each certification body of the inspection of load lifting limiter in hoisting crane supervision and inspection of lifting reason killer is carried out, but to few for the method for load lifting limiter in periodical survey, particularly blank be can be described as to the precision of load lifting limiter and the detection of installing condition.
Existing load lifting limiter in use Problems existing, using electric block as the hoisting crane of lifting mechanism, the load lifting limiter of general apolegamy has three kinds: side-compression, plate ring type, current type are wherein in the majority with side pressure type elevating capacity limiter, mainly because it has low, the easy installation of cost, advantage that commonality is good; But also find in real work that it exists following problem of can not ignore:
(1) more change steel rope time need repetition Installation and Debugging.Because side pressure type elevating capacity limiter will be fixed on a steel cord, and steel rope is consumable accessory, and more change steel rope need remove load lifting limiter, and reinstalls debugging again, to reach warning and the limit for tonnage operating point of code requirement after changing.The installing/dismounting of such repetition, not only constantly can reduce stability and the service life of load lifting limiter, and can increase every cost of applying unit, for actual production brings inconvenience.In addition, in order to avoid trouble, some enterprise only installs load lifting limiter and does not debug, and load lifting limiter is performed practically no function, loses safety protection function.
(2) stability and reliability are not strong.Because steel rope is in continuous loading process, steel rope attenuates, cause sensor binding bolt to loosen, and have impact on the stressing conditions of load lifting limiter, and overload operating point is changed; When production environment is more severe, as high temperature, dust, the environment such as to be exposed to the sun often cause the inefficacy, operating point drift etc. of electronic devices and components, these all cause potential safety hazard to actual production.
(3) fragile.Hoisting crane play weight motion time, load lifting limiter can not stop dynamic along with steel rope, occurs that signal wire (SW) disconnects, killer such as to break at the problem sometimes.In addition, after the hoisting limiter of electric block lost efficacy, load lifting limiter can be involved in suspension ring pulley with steel rope, easily causes damage.
After occurring that above problem is repaired, need regularly or aperiodically to detect the precision of load lifting limiter and accuracy and check, otherwise just affect the safety protection function of load lifting limiter.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of rapid and convenient and detects load lifting limiter equipment, solves the deficiencies in the prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of rapid and convenient detects load lifting limiter equipment, and it comprises clump weight, crossbeam, left arm, right arm, left shock absorber, right shock absorber, force transducer; Clump weight is arranged on the below of crossbeam; The upper center of crossbeam is provided with the suspension ring for clump weight of conveniently slinging; Left arm, right arm are separately positioned on the two ends of crossbeam, and left arm and right arm are symmetrical arranged about suspension ring; Left shock absorber is arranged on left arm one end away from crossbeam, and right shock absorber is arranged on right arm one end away from crossbeam; Force transducer is provided with between left arm and left shock absorber and/or between right arm and right shock absorber; Force transducer for detecting the force signal that left arm and/or right arm bear, and changes electric signal into force signal.
The beneficial effects of the utility model are: the utility model is simple and light and easy and simple to handle, thus can not carry by other weight-lifting equipments.Corresponding test mass can not be reoffered after using this product, according to the weight of this product display screen display compared with the weight that hoisting crane shows, thus can detect whether the precision of load lifting limiter on hoisting crane and mounting means meet related request easily.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the lateral plan of Fig. 1;
Fig. 3 is the structural representation of another embodiment of the present utility model.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of rapid and convenient detects load lifting limiter equipment, and it comprises clump weight 1, crossbeam 2, left arm 4, right arm 5, left shock absorber 6, right shock absorber 7, force transducer 8; Described clump weight 1 is arranged on the below of described crossbeam 2; The upper center of described crossbeam 2 is provided with the suspension ring 3 for conveniently slinging; Described left arm 4, described right arm 5 are separately positioned on the two ends of described crossbeam 2, and described left arm 4 and described right arm 5 are symmetrical arranged about described suspension ring 3; Described left shock absorber 6 is arranged on described left arm 4 one end away from described crossbeam 2, and described right shock absorber 7 is arranged on described right arm 5 one end away from described crossbeam 2; Force transducer 8 is provided with between described left arm 4 and described left shock absorber 6 and/or between described right arm 5 and described right shock absorber 7; Described force transducer 8 for detecting the force signal that described left arm 4 and/or described right arm 5 bear, and changes electric signal into described force signal.
Clump weight 1 can by numerous single heavy be that the cast iron of 20Kg is formed, adjust the utility model integral central position by the size adjusting counterweight when being mainly used in lifting by crane and be positioned at hoisting point position, thus ensure that integral structure can steadily rise.
As shown in Figure 3, further: described force transducer 8 is set to two, and two described force transducers 8 are separately positioned between described left arm 4 and described left shock absorber 6, between described right arm 5 and described right shock absorber 7.Further: described force transducer 8 is strain-gauge force transducer 8.
Further: to be all detachably fixedly connected with by bolt between described left arm 4, described right arm 5 with described crossbeam 2.
Further: described left shock absorber 6, right shock absorber 7 all adopt YK-HYD4-50 type water bumper.Described left shock absorber 6, right shock absorber 7 can bear the gravity of 8 tons, and cushion stroke is 50mm, can play the effect of buffering when left arm 4 contacts with girder with right arm 5, and reduce impulsive force, girder is the crossbeam at tested Jack place.
The utility model also comprises projector, receptor, treater, display terminal; Described projector is used for described electric signal to be transmitted to described receptor by wireless mode; Described receptor receives the described electric signal that described projector is launched, and described electric signal is sent to described treater; Described treater obtains weight signal to described electric signal after amplification, A/D conversion, and described weight signal is sent to described display terminal.Such design has weight display, radio remote Distance Transmission, feature simple and light and easy and simple to handle.
The utility model also discloses a kind of method that rapid and convenient detects load lifting limiter, the method utilizes the lifting mechanism of tested hoisting crane to promote and detects load lifting limiter equipment, by the power originally needing applied load downward, power is upwards converted into by check implement, be applied on the girder of hoisting crane, thus reach and exempt to do the object that load just can detect load lifting limiter precision; The method uses above-mentioned a kind of rapid and convenient to detect load lifting limiter equipment;
Step one: open tested hoisting crane, opens the lifting mechanism (dolly or electric block) of described hoisting crane to girder span centre position, transfers the suspension hook of described tested hoisting crane;
Step 2: described suspension hook is connected with described suspension ring 3;
Step 3: described hoisting crane to rise described suspension hook with First Speed, and described detection load lifting limiter equipment is sling, when the described left shock absorber 6 of detection load lifting limiter equipment, the upper end of right shock absorber 7 contact with the lower surface of the crossbeam at described hoisting crane place, described suspension hook is stopped to rise;
Step 4: described hoisting crane to rise described suspension hook with second speed, and described second speed is less than described First Speed; Described display terminal display weight, when reaching the weight needing to detect, stops described suspension hook to rise.If tested hoisting crane is single speed hoisting crane, then second speed is that the mode adopting crawl to rise rises.
Utilize lifting motor to be pulled up to by the utility model to contact with girder, when described left arm 4, described right arm 5 start stressed after, power is transferred to sensor makes sensor produce micro-change of voltage, after instrument amplifier amplifies, become digital signal through high-resolution A/D converter.Digital signal is directly read by one-chip computer, is converted into gravimetric value after treatment and shows on a display screen.
The utility model is simple and light and easy and simple to handle, thus can not carry by other weight-lifting equipments.Corresponding test mass can not be reoffered after using this product, according to the weight of this product display screen display compared with the weight that hoisting crane shows, thus can detect whether the precision of load lifting limiter on hoisting crane and mounting means meet related request easily.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (6)

1. rapid and convenient detects a load lifting limiter equipment, it is characterized in that: comprise clump weight (1), crossbeam (2), left arm (4), right arm (5), left shock absorber (6), right shock absorber (7), force transducer (8); Described clump weight (1) is arranged on the below of described crossbeam (2); The upper center of described crossbeam (2) is provided with the suspension ring (3) for conveniently slinging; Described left arm (4), described right arm (5) are separately positioned on the two ends of described crossbeam (2), and described left arm (4) and described right arm (5) are symmetrical arranged about described suspension ring (3); Described left shock absorber (6) is arranged on described left arm (4) one end away from described crossbeam (2), and described right shock absorber (7) is arranged on described right arm (5) one end away from described crossbeam (2); Described force transducer (8) is provided with between described left arm (4) and described left shock absorber (6) and/or between described right arm (5) and described right shock absorber (7); Described force transducer (8) for detecting the force signal that described left arm (4) and/or described right arm (5) bear, and changes electric signal into described force signal.
2. a kind of rapid and convenient detects load lifting limiter equipment according to claim 1, it is characterized in that: between described left arm (4) and described left shock absorber (6) and between described right arm (5) and described right shock absorber (7), be provided with described force transducer (8).
3. a kind of rapid and convenient detects load lifting limiter equipment according to claim 2, it is characterized in that: described force transducer (8) is strain-gauge force transducer (8).
4. a kind of rapid and convenient detects load lifting limiter equipment according to claim 1, it is characterized in that: described left arm (4), be all detachably fixedly connected with by bolt between described right arm (5) with described crossbeam (2).
5. a kind of rapid and convenient detects load lifting limiter equipment according to claim 1, it is characterized in that: described left shock absorber (6), right shock absorber (7) all adopt YK-HYD4-50 type water bumper.
6. according to any one of claim 1 to 5, a kind of rapid and convenient detects load lifting limiter equipment, it is characterized in that: also comprise projector, receptor, treater, display terminal; Described projector is used for described electric signal to be transmitted to described receptor by wireless mode; Described receptor receives the described electric signal that described projector is launched, and described electric signal is sent to described treater; Described treater obtains weight signal to described electric signal after amplification, A/D conversion, and described weight signal is sent to described display terminal.
CN201520099144.7U 2015-02-11 2015-02-11 A kind of rapid and convenient detects load lifting limiter equipment Expired - Fee Related CN204454309U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520099144.7U CN204454309U (en) 2015-02-11 2015-02-11 A kind of rapid and convenient detects load lifting limiter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520099144.7U CN204454309U (en) 2015-02-11 2015-02-11 A kind of rapid and convenient detects load lifting limiter equipment

Publications (1)

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CN204454309U true CN204454309U (en) 2015-07-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671096A (en) * 2015-02-11 2015-06-03 衢州市特种设备检验中心 Method and equipment for rapidly and conveniently detecting load lifting limiter
CN111483921A (en) * 2020-04-23 2020-08-04 武汉通联路桥机械技术有限公司 Load test device and test method for hoisting equipment with quasi-diamond structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671096A (en) * 2015-02-11 2015-06-03 衢州市特种设备检验中心 Method and equipment for rapidly and conveniently detecting load lifting limiter
CN111483921A (en) * 2020-04-23 2020-08-04 武汉通联路桥机械技术有限公司 Load test device and test method for hoisting equipment with quasi-diamond structure
CN111483921B (en) * 2020-04-23 2021-11-16 武汉通联路桥机械技术有限公司 Load test device and test method for hoisting equipment with quasi-diamond structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

Termination date: 20170211

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