CN103323199B - Jig for testing dynamic impact strength of chain and rope - Google Patents
Jig for testing dynamic impact strength of chain and rope Download PDFInfo
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- CN103323199B CN103323199B CN201210081609.7A CN201210081609A CN103323199B CN 103323199 B CN103323199 B CN 103323199B CN 201210081609 A CN201210081609 A CN 201210081609A CN 103323199 B CN103323199 B CN 103323199B
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Abstract
The invention relates to the technical field of strength testing, and provides a jig for testing the dynamic impact strength of a chain and a rope. The jig comprises a machine frame, a fixing position, a bearing assembly and a lifting mechanism, wherein the fixing position is arranged on the top of the machine frame and is connected with one end of the chain to be tested and one end of the rope to be tested, the bearing assembly is located below the fixing position and is connected with the other end of the chain to be tested and the other end of the rope to be tested, the weight of the bearing assembly can be increased and reduced, the lifting mechanism is arranged on the machine frame and can drive the bearing assembly to move up and down and make the bearing assembly fall in a moment, and the lifting mechanism can produce impact pulling force on the chain to be tested and the rope to be tested. Due to the fact that one end of the chain to be tested and one end of the rope to be tested are fixed on the fixing position, the other end of the chain to be tested and the other end of the rope to be tested are connected with the bearing assembly, the bearing assembly is driven by the lifting mechanism to move up and fall in a moment, and the falling bearing assembly produces the impact pulling force on the chain to be tested and the rope to be tested, the dynamic impact strength of the chain and the rope can be tested. The weight of the bearing assembly can be increased and reduced according to different chains and ropes. The testing jig is easy and reliable to operate, working intensity is reduced, and working efficiency is improved.
Description
Technical field
The present invention relates to strength test technical field, more specifically, be related to a kind of can be to the dynamic punching of chain, rope
The fixture that hit intensity is tested.
Background technology
In scientific and technological growing today, the maintainability of product and security not only become main in product development and design
Index, also becomes measurement good product quality, bad major criterion.It is especially applicable to the fixed class product of various occasions, such as exist
The more common protection chain arriving, rope in light trade.These protection chains, rope are generally mounted to shell or the enclosing cover of light fixture
On, when repairing or replacing part to product, protection chain, rope play the effect of second protection, even light fixture
Installing component failure fracture, also has protection chain when light fixture falls down or rope is pulled, people or property will not be caused sternly
Damage again.These protection chains, rope are typically all to design according to the safe clearance of 4 times of safety coefficients or more, significantly carry
Its security performance high.And the safety coefficient of light fixture be usually with its intensity as reference, light fixture drop moment can to protection chain,
Rope produces dynamic strength impact, therefore for obtaining effective security system, these protection chains, ropes need before use into
Row impact strength is tested, no fixture in traditional test, and test process is complicated, labor intensive, material resources, and cost is big.
Content of the invention
The technical problem to be solved is to overcome the defect of prior art, provides a kind of structure simple, operation
Convenient, different chains, rope can be carried out with the fixture of dynamic impact strength test.
For solving above-mentioned technical problem, the technical scheme is that a kind of chain of offer, the dynamic impact strength of rope
Test fixture, including frame, the fixed bit that is connected with chain to be tested, rope one end located at described frame top, positioned at described
Be connected with chain to be tested, the rope other end below fixed bit and can increase, the bearing component of loss of weight amount, and located at described frame
Go up and described bearing component can be driven to move up and down and so that its moment is fallen and impact tension is produced to chain to be tested, rope
Hoisting mechanism.
Specifically, described bearing component includes a hook being vertically arranged, the crossbeam being worn by described hook middle part level
And the counterweight of some Different Weight；The top of described hook is connected with the other end of chain to be tested, rope, described hook
Bottom is connected with described counterweight.
Specifically, two columns that described frame includes horizontal top and supports described top board, the inner side of described two columns
It is vertically arranged a slide bar respectively；The two ends of described crossbeam are sheathed on respectively on described slide bar and can be along the upper and lower slips of described slide bar.
Further, it is additionally provided with locking mechanism between the two ends of described crossbeam and described slide bar, described locking mechanism includes
Spacing hole on described slide bar and be inserted in can the locking pin of described spacing in the hole located at described crossbeam two ends and axially.
Further, described hoisting mechanism is two groups, is respectively arranged on the both sides of described fixed bit.
Specifically, described hoisting mechanism includes motor located at described frame top, on described motor output shaft
Drum, one ends wound are in the steel wire rope on described drum, the electromagnet on the other end that is fixed on described steel wire rope and control
The control circuit of described motor forward and backward, described electromagnet is adsorbed on described crossbeam.
Further, described control circuit carries out open and close control by remote control or line control machine.
Further, the inner side of described column is additionally provided with and is connected and can perceive described crossbeam slip with described control circuit
The travel switch of position.
Further, the bottom of described two columns is additionally provided with a base plate, and described base plate is provided with and can hold described counterweight and drop
The cavity placed afterwards.
Specifically, described counterweight is provided with least one connecting hook.
In the present invention, chain to be tested, rope one end are fixed on fixed bit, and one end is connected with bearing component, load-bearing group
After part moves up under hoisting mechanism drive and moment whereabouts, the bearing component of whereabouts produces punching to chain to be tested, rope
Hit pulling force, thus the dynamic impact strength of chain, rope can be tested；And for different chains, rope, can increase, subtract load-bearing group
The weight of part, therefore adopt this test fixture, simple to operate, reliable, reduce working strength, improve operating efficiency.
Brief description
Fig. 1 is the structural representation of test fixture one preferred embodiment that the present invention provides；
Fig. 2 is a kind of structural representation of counterweight in the embodiment of the present invention；
Fig. 3 is the structural representation of another kind of counterweight in the embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
With reference to Fig. 1, a kind of chain that the present invention provides, the dynamic impact strength test fixture of rope, including frame 100,
The fixed bit 200 being connected with chain to be tested, rope one end located at frame 100 top, positioned at fixed bit 200 lower section with to be tested
Chain, the rope other end connect and can increase, the bearing component 300 of loss of weight amount, and and can drive load-bearing group in frame 100
Part 300 moves up and down and so that its moment is fallen and the hoisting mechanism 400 to chain to be tested, rope generation impact tension.This
In bright, chain to be tested, rope one end are fixed on fixed bit 200, and one end is connected with bearing component 300, and bearing component 300 exists
After hoisting mechanism 400 moves up under driving and moment whereabouts, the bearing component 300 of whereabouts produces to chain to be tested, rope
Impact tension, thus the dynamic impact strength of chain, rope can be tested；And for different chains, rope, can increase, subtract load-bearing
The weight of assembly 300, therefore adopt this test fixture, simple to operate, reliable, reduce working strength, improve operating efficiency.
In the present embodiment, bearing component 300 includes the hook 310 being vertically arranged, is worn by hook 310 middle part levels
The counterweight 330 of crossbeam 320 and some Different Weight.Specifically, hook 310 includes a body 311 and is respectively arranged on body
Two connecting hooks 312 of 311 top and bottoms, crossbeam 320 is passed through by body 311, positioned at the connecting hook 312 at body 311 top
For being connected with the other end of chain to be tested, rope, the connecting hook 312 positioned at body 311 bottom is used for hanging counterweight 330.
Further, frame 100 includes two columns 120 of horizontal top 110 and roof supporting, two columns 120 interior
Side is vertically arranged a slide bar 500 respectively；The two ends of crossbeam 320 are sheathed on respectively on slide bar 500 and can be along the upper and lower cunnings of slide bar 500
Dynamic, so, in upper shifting or folding process, crossbeam 320 also functions to position-limiting action to bearing component 300, it is to avoid bearing component 300 shakes
Dynamic.
Further, it is additionally provided with locking mechanism 600 between the two ends of crossbeam 320 and slide bar 500.Specifically, locking mechanism
600 include the spacing hole (not shown) on slide bar 500 and be inserted in can spacing located at crossbeam 320 two ends and axially
The locking pin 610 of in the hole.Preferably, locking pin 610 is a spring catch.By arranging locking mechanism 600, realize to bearing component
300 secondary fixation, it is to avoid when the electromagnet 440 for adsorbing crossbeam 320 loses efficacy, bearing component 300 fell, thus also ensureing
The security of test.
Refer again to Fig. 1, in the present embodiment, hoisting mechanism 400 is two groups, is respectively arranged on the both sides of fixed bit 200.When to be measured
When examination chain, the heavier loads of the wanted load-bearing of rope, can be lifted by two groups of hoisting mechanisms 400, efficiency high, and two groups of liftings
Mechanism 400 respectively be located at fixed bit 200 both sides, that is, be located at chain to be tested, rope both sides it is ensured that lifting stationarity；
When chain to be tested, rope bear a heavy burden lighter, can be only with one group of hoisting mechanism 400, such selection mode is flexibly, also real
The rational and efficient use of existing fixture, does not cause to waste.
Specifically, hoisting mechanism 400 includes motor 410 located at frame 100 top, on motor output shaft 411
Drum 420, one ends wound in the steel wire rope 430 on drum 420 and be fixed on steel wire rope 430 the other end on electromagnet
440 and the control circuit (not shown) of controlled motor 410 forward and backward, electromagnet 440 is adsorbed on crossbeam 320.This reality
Apply in example, by control circuit controlled motor 410 forward or reverse, motor output shaft 411 is being just in forward or reverse for motor 410
Turn or invert, drive drum 420 forward or reverse, thus being pulled up lay winding wire ropes 430 or loosening downwards steel wire rope 430,
Electromagnet 440 is adsorbed on crossbeam 320 in the process, thus also correspondingly drives bearing component 300 to move up or down.
Further, in the present embodiment, control circuit by remote control (not shown) or line control machine, (do not show by figure
Go out) carry out open and close control.So, operating personnel are when carrying out test job, can be away from test fixture it is ensured that tester
Security.
Further, in the present embodiment, the inner side of column 120 is additionally provided with and is connected with control circuit and can perceive crossbeam 320
The travel switch 700 of sliding position.When travel switch 700 senses that crossbeam 320 drives lower slider extremely predetermined in hoisting mechanism 400
During position, open circuit is carried out to control circuit, now motor 410 stops dynamic turning, thus stopping the lifting to bearing component 300.
Further, with reference to Fig. 1, the bottom of two columns 120 is additionally provided with a base plate 130, and base plate 130 is provided with and can hold counterweight
330 drop after place cavity 131.So, counterweight 330 is placed in cavity 131 after dropping, and is prevented effectively from its ejection and injures people by a crashing object,
Thus playing effective safety protection function.
With reference to Fig. 2, it is a kind of weight structure schematic diagram of 10kg in the present embodiment, this counterweight 330 has a connection
Hook 331.With reference to Fig. 3, it is a kind of weight structure schematic diagram of 20kg in the present embodiment, this counterweight 330 has two connecting hooks
331, facilitate the counterweight of multiple Different Weight to be combined realizing load-bearing, so can carry out intensity to different chains, rope
Test.In the present embodiment, counterweight 330 has the equal-specifications such as 5kg, 10kg, 15kg, 20kg, can arbitrarily select when actually used.
In the present embodiment, the operation principle of test fixture is: by control circuit to the electromagnetism in two groups of hoisting mechanisms 400
Iron 440 is energized, and electromagnet 440 produces magnetic force and holds crossbeam 320, recycles control circuit to carry out controlled motor 410 and rotates forward pulling
Steel wire rope 430 by crossbeam 320 and links up with 310 pull-ups, when travel switch 700 senses crossbeam 320 and reaches predetermined altitude, to control
Motor carries out open circuit, and motor shuts down, thus stopping the lifting to crossbeam 320, now, locking pin 610 is inserted spacing hole
Interior, so that crossbeam 320 is fixed on slide bar 500, realize the secondary fixation to crossbeam 320 and hook 310.By chain to be tested, rope
One end of rope is fixed on fixed bit 200, and the other end is fixed in the connecting hook 311 at hook 310 tops, then according to be tested
The weight bearing required for chain, rope increases counterweight and bears a heavy burden, and when increasing to approrpiate wts, extracts locking pin 610 out, then right
Two electromagnet 440 power-off simultaneously, lose magnetic force after electromagnet 440 power-off, bearing component 300 is along slide bar 500 moment freely
Fall, instant impact is produced to chain to be tested or steel wire rope, thus reaching test chain, the purpose of line strength.Above-mentioned
In test process, directly lift and put down bearing component using motor, mitigate operating personnel's workload, and whole operation process
Simple and convenient, safe and reliable.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Any modification, equivalent and improvement of being made within principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of chain, rope dynamic impact strength test fixture it is characterised in that: include frame, located at described frame top
The fixed bit that portion is connected with chain to be tested, rope one end, with chain to be tested, the rope other end below described fixed bit
Connect and can increase, the bearing component of loss of weight amount, and and described bearing component can be driven to move up and down simultaneously in described frame
Its moment is made to fall and the hoisting mechanism to chain to be tested, rope generation impact tension, it is vertical that described bearing component includes one
The counterweight of the hook of setting, the crossbeam being worn by described hook middle part level and some Different Weight；The top of described hook
It is connected with the other end of chain to be tested, rope, the bottom of described hook is connected with described counterweight.
2. as claimed in claim 1 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described machine
Two columns that frame includes horizontal top and supports described top board, the inner side of described two columns is vertically arranged a slide bar respectively；Institute
The two ends stating crossbeam are sheathed on described slide bar and can be along the upper and lower slip of described slide bar respectively.
3. as claimed in claim 2 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described horizontal stroke
Be additionally provided with locking mechanism between the two ends of beam and described slide bar, described locking mechanism include spacing hole on described slide bar with
And be inserted in can the locking pin of described spacing in the hole located at described crossbeam two ends and axially.
4. as claimed in claim 2 or claim 3 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described
Hoisting mechanism is two groups, is respectively arranged on the both sides of described fixed bit.
5. as claimed in claim 4 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described carry
Rise mechanism include the motor located at described frame top, the drum on described motor output shaft, one ends wound in described around
Steel wire rope on disk, the electromagnet being fixed on the other end of described steel wire rope and the control controlling described motor forward and backward
Circuit, described electromagnet is adsorbed on described crossbeam.
6. as claimed in claim 5 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described control
Circuit processed carries out open and close control by remote control or line control machine.
7. a kind of chain as described in claim 5 or 6, rope dynamic impact strength test fixture it is characterised in that: described
The inner side of column is additionally provided with the travel switch being connected and can perceiving described crossbeam sliding position with described control circuit.
8. as claimed in claim 2 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described two
The bottom of column is additionally provided with a base plate, and described base plate is provided with and can hold the cavity placed after described counterweight drops.
9. as claimed in claim 1 a kind of chain, rope dynamic impact strength test fixture it is characterised in that: described weight
Code is provided with least one connecting hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081609.7A CN103323199B (en) | 2012-03-23 | 2012-03-23 | Jig for testing dynamic impact strength of chain and rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081609.7A CN103323199B (en) | 2012-03-23 | 2012-03-23 | Jig for testing dynamic impact strength of chain and rope |
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| Publication Number | Publication Date |
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| CN103323199A CN103323199A (en) | 2013-09-25 |
| CN103323199B true CN103323199B (en) | 2017-01-25 |
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| CN201210081609.7A Active CN103323199B (en) | 2012-03-23 | 2012-03-23 | Jig for testing dynamic impact strength of chain and rope |
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| CN104330237B (en) * | 2014-11-05 | 2017-03-15 | 上海大学 | A kind of impact test apparatus |
| CN105806607A (en) * | 2016-03-25 | 2016-07-27 | 苏州德智亚自动化科技有限公司 | Gas spring tensile property detecting device |
| CN107870083B (en) * | 2016-09-27 | 2021-09-10 | 上海船厂船舶有限公司 | Test method of steel wire rope type marine riser tensioner anti-impact valve |
| CN106744323B (en) * | 2016-12-23 | 2018-06-05 | 上海致远绿色能源股份有限公司 | A kind of rope impact experiment mechanism autocontrol method |
| CN109682800B (en) * | 2018-12-24 | 2022-02-25 | 中国神华能源股份有限公司 | Detection instrument |
| CN110631797B (en) * | 2019-10-17 | 2021-09-07 | 中国石油集团渤海钻探工程有限公司 | Dynamic impact test device for rigid and semi-rigid centralizer |
| CN111289237B (en) * | 2020-03-31 | 2021-10-15 | 昆山顺扬工业成套设备有限公司 | Pressure cooker strength testing device |
| CN111537177A (en) * | 2020-05-12 | 2020-08-14 | 无锡江炟建设工程质量检测有限公司 | Detection apparatus for safety device |
| CN111965025A (en) * | 2020-08-10 | 2020-11-20 | 泰安科鼎特工贸有限公司 | Method for testing safety performance of rope |
| CN112254959B (en) * | 2020-12-02 | 2022-04-26 | 浙江神牛机械制造有限公司 | Chain wear resistance testing device and using method thereof |
| CN112729672B (en) * | 2020-12-17 | 2021-10-22 | 南京航空航天大学 | Ground calibration device of aerial towing cable system and working method thereof |
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| CN113848054B (en) * | 2021-11-30 | 2022-03-04 | 中国能源建设集团山西电力建设有限公司 | Method for testing load-bearing performance of chain block |
| CN115876453B (en) * | 2023-03-02 | 2023-05-09 | 中铁电气化铁路运营管理有限公司 | Dynamic and static strength testing system and method for safety belt test |
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| US4426875A (en) * | 1981-12-14 | 1984-01-24 | Rca Corporation | Strain measurement |
| CN1979110A (en) * | 2005-12-02 | 2007-06-13 | 陈夏宗 | Detection method and apparatus for landing test |
| KR20100060237A (en) * | 2008-11-27 | 2010-06-07 | 현대제철 주식회사 | Drop-impact test device |
| CN201464305U (en) * | 2009-07-27 | 2010-05-12 | 中国水电十一局郑州科研设计有限公司 | Impact-resistance test instrument of high-performance material |
| CN201464149U (en) * | 2009-07-27 | 2010-05-12 | 东莞市贝尔试验设备有限公司 | Battery impact testing machine |
| KR101019056B1 (en) * | 2010-09-13 | 2011-03-07 | 대경테크 주식회사 | Device for drop-impact test |
| CN201993220U (en) * | 2011-03-31 | 2011-09-28 | 东莞市恒宇仪器有限公司 | Impact testing machine of roller blades |
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| CN103323199A (en) | 2013-09-25 |
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