CN106847055A - A kind of lifting machinery metal structure stress-strain test apparatus for demonstrating - Google Patents
A kind of lifting machinery metal structure stress-strain test apparatus for demonstrating Download PDFInfo
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- CN106847055A CN106847055A CN201710036842.6A CN201710036842A CN106847055A CN 106847055 A CN106847055 A CN 106847055A CN 201710036842 A CN201710036842 A CN 201710036842A CN 106847055 A CN106847055 A CN 106847055A
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- girder
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- electric block
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
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- Theoretical Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to hoisting machinery stress demonstrating engineering device technique field, specifically a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating, including, test demonstration electric block gantry crane, stress-strain test equipment, the counterweight for demarcating weight；The test demonstration includes metal structure, electric block, safety guard with electric block gantry crane；The present apparatus can test the ess-strain situation of unloaded demonstration hoisting machinery, rated load and its scope internal load dangerous spot, can substantially determine the load spectral curve of hoisting machinery under laboratory condition.
Description
Technical field
The present invention relates to hoisting machinery stress demonstrating engineering device technique field, specifically a kind of lifting machinery metal structure stress
Strain testing apparatus for demonstrating.
Background technology
The industries such as the manufacturing industry, steel and iron industry, construction industry, port and pier of China are obtained for further development, lifting
Machinery is widely used, and the use of particularly some large-scale or especially big heavy-duty lifting machines is also more and more.Due to such
Hoisting machinery is expensive, and the manufacturing cycle is long, and maintenance cost is high, after having used certain time limit or after there is abnormal problem
Reparation uses crane, how correctly to assess the behaviour in service of these equipment, it is ensured that the safe and reliable operation of hoisting machinery is used
As use unit concern the most；For use time close to projected life crane or there is anomaly but original
The crane collided because of unknown crane and due to reasons such as cross-operation, is examined using unit for inherently safe
Consider, typically can also carry out vibrative mechanism safety feature test to it；In order to preferably study lifting machinery metal structure
Effect of the ess-strain to lifting machinery metal structure performance, method for designing and life appraisal, develops a kind of laboratory condition and enters
The device of row stress-strain test is highly desirable to.
The content of the invention
The present invention is intended to provide a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating for laboratory.
To achieve the above object, the technical solution adopted by the present invention is such：A kind of lifting machinery metal structure stress
Strain testing apparatus for demonstrating, it is characterised in that：The present apparatus includes, test demonstration electric block gantry crane, ess-strain
Test equipment, the counterweight for demarcating weight；The test demonstration includes metal structure, electronic calabash with electric block gantry crane
Reed, safety guard；The electric block gantry crane is manipulated by cabinet control electric control system and realizes demarcating
The counterweight lifting and operation of weight；The safety guard includes that load lifting limiter, lifting altitude and descending depth are spacing
Device, operation range limiter, end stop and buffer；The load lifting limiter is arranged on the hoist rope of electric block
On, the weight for limiting lifted load, if overload, load lifting limiter will send alarm signal and cut off to dangerous square fortune
Capable power supply；The lifting altitude and descending depth limiter are arranged on electric gourd drum one end, for limiting lifted load
Lifting altitude and descending depth, if transfiniting, limiter will cut off to dangerous direction run power supply；The operation stroke limit
Device is arranged on girder two ends, the operation stroke for limiting electric block；The end stop and buffer integrative installation technology exist
Girder two ends, for preventing electric block from derailing and buffering the impulsive force that electric block clashes into end stop.
Further, the metal structure includes：Girder, supporting leg, top end transverse member, bottom end rail, the girder two ends respectively with
Top end transverse member is welded and fixed, and the two ends of the top end transverse member are welded and fixed by two tilting supporting legs and the two ends of bottom end rail respectively；
The bottom welding horizontal steel plate of the supporting leg is standing on ground；The girder combines box knot by square steel and I-steel
Structure, the supporting leg, top end transverse member, bottom end rail use channel-section steel structure；The electric block gantry crane is arranged on below girder
On I-steel, using the bottom wing listrium of I-steel as operation track.
Further, the stress-strain test equipment includes：Resistance-strain paster, temperature-compensating paster, resistance-strain
The computer of instrument and installation test platform software；The resistance-strain paster and temperature-compensating paster are attached on girder span centre respectively
Lower surface, girder a quarter step up lower surface, kingpost cantalever root upper and lower surface, supporting leg upper surface, 0.72 times of height of supporting leg
At the connection lower surface of place, top end transverse member and girder, at bottom end rail span centre upper surface, temperature-compensating paster pastes another not stressing
Metallic plate on, the metallic plate is identical with tested metal structure material, in same temperature；The resistance strain gauge respectively with
Resistance strain gage is connected by wire；Be sent to the data of collection at computer by wireless transport module by the resistance strain gauge
Reason end.
Further, slick line device is installed between the top end transverse member of the girder side.
Further, the resistance strain gauge is ASMC1-9 type resistance strain gauges.
Further, the supporting leg bottom setting can be with the road wheel of locking quickly to move.
The beneficial effects of the invention are as follows：The present apparatus is by the test process of hoisting machinery primary structure member ess-strain in laboratory
Under the conditions of realize, the ess-strain of demonstration hoisting machinery unloaded, rated load and its scope internal load dangerous spot can be tested
Situation, can substantially determine the load spectral curve of hoisting machinery under laboratory condition, be the design of lifting machinery metal structure, strong
Degree and rigidity reserve status and residual life evaluation provide important references, meanwhile, to ess-strain under hoisting machinery actual condition
Test is acted on important practical advice.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
In figure：3rd, counterweight；5th, load lifting limiter；6th, lifting altitude and descending depth limiter；7th, stroke limit is run
Device；8th, end stop；9th, buffer；10th, hoist rope；11st, electric gourd drum；12nd, girder；13rd, supporting leg；14th, upper end
Beam；15th, bottom end rail；16th, steel plate；17th, resistance-strain paster；18th, temperature-compensating paster；19th, computer；20th, resistance strain gauge；
21st, metallic plate.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings, below only presently preferred embodiments of the present invention, does not limit
Due to the present invention.
As described in accompanying drawing, a kind of hoisting machinery stress-strain test apparatus for demonstrating, it is characterised in that：The present apparatus includes, surveys
Preview and show with electric block gantry crane, stress-strain test equipment, the counterweight 3 for demarcating weight；The test demonstration electricity consumption
Dynamic cucurbit gantry crane includes metal structure, electric block, safety guard；The electric block gantry crane passes through
Operational control cabinet control electric control system realizes that raising is demarcated the counterweight of weight and horizontally slipped；The safety guard bag
Include, load lifting limiter 5, lifting altitude and descending depth limiter 6, operation range limiter 7, end stop 8 and buffer
9；The load lifting limiter 5 is arranged on the hoist rope 10 of electric block, the weight for limiting lifted load, if super
Carry, load lifting limiter 5 will send alarm signal and cut off power supply to dangerous square operation；The lifting altitude and lower drawdown
Degree limiter 6 is arranged on the one end of electric gourd drum 11, lifting altitude and descending depth for limiting lifted load, if super
Limit, limiter will cut off the power supply run to dangerous direction；The operation range limiter is arranged on the two ends of girder 12, for limiting
The operation stroke of electric block processed；The end stop 8 and the integrative installation technology of buffer 9 at the two ends of girder 12, for preventing electricity
Dynamic cucurbit derailing and buffering electric block clash into the impulsive force of end stop 8.
Preferably, the metal structure includes：Girder 12, supporting leg 13, top end transverse member 14, bottom end rail 15,12 liang of the girder
End is welded and fixed with top end transverse member 14 respectively, and the two ends of the top end transverse member 14 are respectively by two tilting supporting legs 13 and bottom end rail 15
Two ends be welded and fixed；The bottom welding horizontal steel plate 16 of the supporting leg is standing on ground；The girder 12 is by square steel and work
Word steel combines case structure, and the supporting leg, top end transverse member, bottom end rail use channel-section steel structure；The electric block gate-type rises
Heavy-duty machine be arranged on girder below I-steel on, using the bottom wing listrium of I-steel as operation track.
Preferably, the stress-strain test equipment includes：Resistance-strain paster 17, temperature-compensating paster 18, resistance should
Become instrument 20 and the computer 19 of test platform software is installed；The resistance-strain paster be attached to respectively girder span centre upper and lower surface,
Girder a quarter step up lower surface, kingpost cantalever root upper and lower surface, supporting leg upper surface, at 0.72 times of supporting leg height, upper end
At the connection lower surface of beam and girder, at bottom end rail span centre upper surface, temperature-compensating paster pastes another metal not stressed
On plate 21, the metallic plate is identical with tested metal structure material, interior in same temperature；The resistance strain gauge respectively with resistance
Foil gauge is connected by wire；The data of collection are sent to computer and processed by the resistance strain gauge by wireless transport module
End.
Preferably, slick line device 15 is installed between the top end transverse member 14 of the side of the girder 12.
Preferably, the resistance strain gauge 20 is ASMC1-9 type resistance strain gauges.
Preferably, the bottom of the supporting leg 13 setting can be with the road wheel of locking quickly to move.
Principle of the invention is：Present invention simulation crane raising and operation and other transfinite, answered by resistance
Become paster, resistance strain gauge monitoring hoisting machinery in the course of the work, the ess-strain situation of lifting machinery metal structure passes through
Computer end analysis draws the curve table of ess-strain, is detected by in-situ stresses, S-N curves of bond material, computation structure
Fatigue life, the equipment past working time is deducted, the residual life of metal structure is estimated with this, be that big machinery designer carries
For important reference.
Claims (6)
1. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating, it is characterised in that：The present apparatus includes that test is demonstrated
With electric block gantry crane, stress-strain test equipment, the counterweight for demarcating weight；Electronic calabash door is used in the test demonstration
Formula crane includes metal structure, electric block, safety guard；The electric block gantry crane is manipulated by
Cabinet control electric control system is realized demarcating the counterweight lifting of weight and is run；The safety guard includes that lifting capacity is limited
Device processed, lifting altitude and descending depth limiter, operation range limiter, end stop and buffer；The lifting capacity limitation
Device is arranged on the hoist rope of electric block, the weight for limiting lifted load, if overload, load lifting limiter will be sent out
Go out alarm signal and cut off power supply to dangerous square operation；The lifting altitude and descending depth limiter are arranged on electronic calabash
Reed reel one end, lifting altitude and descending depth for limiting lifted load, if transfiniting, limiter will be cut off to dangerous direction
The power supply of operation；The operation range limiter is arranged on girder two ends, the operation stroke for limiting electric block；The end
Portion's stop and buffer integrative installation technology clash into end at girder two ends for preventing electric block from derailing and buffering electric block
The impulsive force of stop.
2. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating according to claim 1, it is characterised in that：
The metal structure includes：Girder, supporting leg, top end transverse member, bottom end rail, the girder two ends are welded and fixed with top end transverse member respectively, institute
The two ends for stating top end transverse member are welded and fixed by two tilting supporting legs and the two ends of bottom end rail respectively；The bottom welding of the supporting leg
Horizontal steel plate is standing on ground；The girder combines case structure, the supporting leg, upper end by square steel and I-steel
Beam, bottom end rail use channel-section steel structure；The electric block gantry crane is arranged on the I-steel below girder, with I-steel
Bottom wing listrium as operation track.
3. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating according to claim 1, it is characterised in that：
The stress-strain test equipment includes：Resistance-strain paster, temperature-compensating paster, resistance strain gauge and installation test platform are soft
The computer of part；The resistance-strain paster is attached to girder span centre upper and lower surface, girder a quarter and steps up lower surface, master respectively
Girder cantilever root upper and lower surface, supporting leg upper surface, at 0.72 times of supporting leg height, at the connection lower surface of top end transverse member and girder, under
At end carriage span centre upper surface, temperature-compensating paster is pasted on another metallic plate not stressed, the metallic plate and tested metal knot
Structure material is identical, interior in same temperature；The resistance strain gauge is connected with resistance strain gage by wire respectively；The resistance
The data of collection are sent to computer and process end by deformeter by wireless transport module.
4. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating according to claim 1, it is characterised in that：
Slick line device is installed between the top end transverse member of the girder side.
5. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating according to claim 1, it is characterised in that：
The resistance strain gauge is ASMC1-9 type resistance strain gauges.
6. a kind of lifting machinery metal structure stress-strain test apparatus for demonstrating according to claim 1, it is characterised in that：
The supporting leg bottom is set can be with the road wheel of locking quickly to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036842.6A CN106847055B (en) | 2017-01-18 | 2017-01-18 | Stress-strain test demonstration device for metal structure of hoisting machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036842.6A CN106847055B (en) | 2017-01-18 | 2017-01-18 | Stress-strain test demonstration device for metal structure of hoisting machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106847055A true CN106847055A (en) | 2017-06-13 |
| CN106847055B CN106847055B (en) | 2023-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710036842.6A Active CN106847055B (en) | 2017-01-18 | 2017-01-18 | Stress-strain test demonstration device for metal structure of hoisting machinery |
Country Status (1)
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| CN (1) | CN106847055B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883683A (en) * | 2019-04-04 | 2019-06-14 | 王小珍 | A kind of lifting machinery metal structure stress-strain test demo system |
| CN111583591A (en) * | 2020-04-30 | 2020-08-25 | 朱文力 | Safety alarm method and device for hoisting machinery |
| CN113479777A (en) * | 2021-08-06 | 2021-10-08 | 上海市特种设备监督检验技术研究院 | Device and method for detecting lifting capacity limiter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883683A (en) * | 2019-04-04 | 2019-06-14 | 王小珍 | A kind of lifting machinery metal structure stress-strain test demo system |
| CN111583591A (en) * | 2020-04-30 | 2020-08-25 | 朱文力 | Safety alarm method and device for hoisting machinery |
| CN111583591B (en) * | 2020-04-30 | 2022-01-18 | 朱文力 | Safety alarm method and device for hoisting machinery |
| CN113479777A (en) * | 2021-08-06 | 2021-10-08 | 上海市特种设备监督检验技术研究院 | Device and method for detecting lifting capacity limiter |
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| Publication number | Publication date |
|---|---|
| CN106847055B (en) | 2023-01-20 |
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