CN110441161A - Safety belt static load pull force tester and method based on crane - Google Patents
Safety belt static load pull force tester and method based on crane Download PDFInfo
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- CN110441161A CN110441161A CN201910821226.0A CN201910821226A CN110441161A CN 110441161 A CN110441161 A CN 110441161A CN 201910821226 A CN201910821226 A CN 201910821226A CN 110441161 A CN110441161 A CN 110441161A
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- 230000003068 static effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000009864 tensile test Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Emergency Lowering Means (AREA)
Abstract
The safety belt static load pull force tester based on crane that the invention discloses a kind of, is related to safety belt (rope) tensile test technical field, including hoisting apparatus, counterweight, earth anchor.Hoisting apparatus is fixedly mounted aloft, operates ground or is fixedly installed earth anchor on the relatively-stationary building body in ground with operating.Hoisting apparatus includes halliard and hook, and hook is connect with halliard, and one end of tested safety belt is connect with earth anchor, is tested the other end of safety belt with reconnection, tested safety belt is hung on hook.One end of tested safety belt is connect with earth anchor, is tested the other end of safety belt with reconnection, tested safety belt is hung on hook, the tensile test to tested safety belt can be realized by the promotion of the pinnacled hoisting apparatus of fixation, structure is simple, facilitates operation, it is often more important that saves cost.The method for the safety belt static load pull force tester based on crane that the present invention also provides a kind of, step is simple, can be improved test efficiency.
Description
Technical field
The present invention relates to safety belt (rope) tensile test technical field, in particular to a kind of safety belt based on crane is quiet
Load pull force tester and method.
Background technique
According to " electrical safe working order " (DL408-91) and " electric power safety working regulation " (Q/CSG 510001-
2015) it provides, safety belt (rope) need to be carried out periodically through static load pull test, to verify its mechanical performance.This is because this kind of
Tool prolonged application truck work on site, it is mechanical as aging, damage inevitably occur for the increase of access times
Performance can also decline to a great extent.If the bad security tool of such mechanical performance easily occurred using operation of ascending a height on site
Anti-falling overhead and the protective effect for losing safety belt.Since the safety belt and safety rope of electric power enterprise are widely used, quantity is many
More, single-piece rope is different in size, and common belt force testing machine can only detect one every time, and detection efficiency is relatively low.In
State's application number of invention patent is CN201611094102.X, and entitled pull test detector, which is disclosed, has the using main body frame
One tensile beam and the second tensile beam, the first tensile beam and the second tensile beam are oppositely arranged, and multiple safety belts to be tested are respectively mounted
Between the first tensile beam and the second tensile beam;First tensile beam and the second tensile beam distance are adjustably arranged, and are adjusted with passing through
The distance for saving the first tensile beam and the second tensile beam stretches multiple safety belts.It may be implemented simultaneously using above-mentioned structure to more
Safety belt is detected, and detection efficiency is improved, but since it adopts the first tensile beam and the second tensile beam distance adjustably
Setting, therefore structure is complex, at high cost, is unfavorable for safeguarding, in addition, since safety belt is in the state of tension, with when
Between extension its own can extend, pulling force can decline, need to adjust the pulling force that two tensile beams can be kept constant constantly, this
The requirement of sample improves the complexity in system control.
Summary of the invention
To solve the above problems, the present invention adopts the following technical scheme that realization:
A kind of safety belt static load pull force tester based on crane, including hoisting apparatus, counterweight, earth anchor;
The hoisting apparatus is fixedly mounted on building, massif or trees, and installation site has certain with operatively face
Drop height;
The operation ground is fixedly installed earth anchor on the relatively-stationary building body in ground with operating;
The hoisting apparatus includes halliard and hook, and hook is connect with halliard;
One end of tested safety belt is connect with the earth anchor, and the other end for being tested safety belt matches reconnection with described, is tested safety
Band is hung on the hook.
One end of tested safety belt is connect with the earth anchor, the other end for being tested safety belt matches reconnection, quilt with described
It surveys safety belt to hang on the hook, can be realized by the promotion of the pinnacled hoisting apparatus of fixation to tested safety belt
Tensile test, structure is simple, facilitates operation, it is often more important that saves cost.
It preferably, further include stretching force detecting apparatus, the stretching force detecting apparatus is serially connected in the earth anchor and the tested peace
Between full band.
Stretching force detecting apparatus can real-time display value of thrust, can allow operator perhaps most directly effective information, with
Convenient for being further understood that concrete condition increase perhaps reduces counterweight, to improve the accuracy of test.
Preferably, the stretching force detecting apparatus is portable electronic scale;
The stretching force detecting apparatus includes upper hook, lower draw-bar, stretching force detecting apparatus ontology, and the upper hook is fixedly mounted on
Above the stretching force detecting apparatus ontology, the lower draw-bar is fixedly mounted below the stretching force detecting apparatus ontology.
Portable electronic scale is very common device, can reduce unnecessary design using existing portable electronic scale
Cost, and can expedited purchase and investment test, save time cost.
Preferably, the earth anchor is U-shaped structure made of metal material, and open end is embedded to be fixed on the operation ground
Or on the relatively-stationary building body in the operation ground.
U-shaped structure earth anchor can be convenient connection, reduces unnecessary complex operations when connection, improves working efficiency.
Preferably, the counterweight includes the counterweight of weight box lanyard, weight box and several different qualities;
The weight box is body structure, is fixedly installed weight box lanyard above, can be accommodated in weight box several described
Counterweight.
Preferably, the weight of several counterweights is respectively 25kg, 10kg, 5kg, 1kg.
Preferably, the hoisting apparatus is bottle gouard moved by hands or electric block.
For ease of operation, the detection efficiency of safety belt static load pull test is improved, the present invention also provides a kind of bases
In the detection method of the safety belt static load pull force tester of crane, comprising the following steps:
S1, the counterweight of constant weight is put into weight box;
S2, tested safety belt is connected;
S3, hook is hooked on tested safety belt;
Halliard and hook are promoted, while lifting tested safety belt and counterweight by S4, control hoisting apparatus;Counterweight be raised from
After opening ground, stop being promoted;
S5, counterweight vacantly continue 5 minutes;
Safety belt is fallen and removed to halliard and hook by S6, control hoisting apparatus, complete pull test.
Preferably, the tested safety belt of connection described in S2 includes connecting the lower draw-bar of stretching force detecting apparatus with the earth anchor;
The upper hook of stretching force detecting apparatus is connect with one end of the tested safety belt;The other end of tested safety belt and the counterweight
On weight box lanyard connection.
Compared with prior art, the invention has the advantages that safety belt (rope) one end passes through stretching force detecting apparatus and ground
Anchoring is fixed, and safety belt (rope) other end is fixed with counterweight, is hung up safety belt (rope) using crane, weight box leaves ground
Behind face, the pulling force that safety belt (rope) is born is exactly the gravity of counterweight.
Its structure is simple, low in cost, easy to operate, and stability is good, and convenient for assembling and maintenance, step is simply easy to real
It is existing.It can connect and detect to a plurality of safety belt (rope), static load value of thrust is adjustable, and detection efficiency is very high, can be applicable in
In rope class security tool, it is with a wide range of applications.
Detailed description of the invention
Fig. 1 is critical component schematic diagram of the invention;
Fig. 2 is schematic diagram when being used for actual tests of the invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application embodiment clearer, implement below in conjunction with the application
Fig. 1 and Fig. 2 in mode, are clearly and completely described the technical solution in the application embodiment, it is clear that described
Embodiment be a part of embodiment of the application, rather than whole embodiment.Based on the embodiment in the application,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Apply for the range of protection.Therefore, below the detailed description of the presently filed embodiment provided in the accompanying drawings is not intended to limit
Claimed scope of the present application is made, but is merely representative of the selected embodiment of the application.Based on the implementation in the application
Mode, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the application protection.
As illustrated in figs. 1 and 2, a kind of safety belt static load pull force tester based on crane, including hoisting apparatus
30, counterweight 50, earth anchor 70.
Hoisting apparatus 30 is bottle gouard moved by hands or electric block, and hoisting apparatus 30 includes halliard 32 and hook 33, hook
33 connect with halliard 32.Hoisting apparatus 30 is fixedly mounted on building, massif or trees, installation site with operatively
Face has certain drop height, this is highly reference with tested belt length, and general height is at 2 meters or more.
Counterweight 50 includes the counterweight 52 of weight box lanyard 51, weight box 53 and several different qualities, and weight box 53 is cabinet
Structure is fixedly installed weight box lanyard 51 above, several counterweights 52 can be accommodated in weight box 53.Wherein, several counterweights
52 weight is respectively 25kg, 10kg, 5kg, 1kg.
Operation ground is fixedly installed earth anchor 70 on the relatively-stationary building body in ground with operating.
Earth anchor 70 is U-shaped structure made of metal material, open end is embedded be fixed on operation ground or with operation ground
On relatively-stationary building body.
In use, one end of tested safety belt is connect with earth anchor 70, the other end of tested safety belt is connect with counterweight 50, quilt
Safety belt is surveyed to hang on hook 33.It further include stretching force detecting apparatus 60 to observe pulling force size, stretching force detecting apparatus 60 concatenates
Between earth anchor 70 and tested safety belt.Stretching force detecting apparatus 60 is portable electronic scale.
Specifically, as depicted in figs. 1 and 2, hoisting apparatus 30 includes reel 37, suspension arm 31, halliard 32, hook
33, motor 34, button switch 35 and shaft 36.Motor 34 is set on reel 37 and is connected by shaft coupling with shaft 36 to drive
Turn axis 36 rotates, and shaft 36 is set in reel 37, and halliard 32 is wound in shaft 36, and halliard 32 is wirerope, intensity
It is good, big pulling force can be born, hook 33 is set on the free end of halliard 32, and suspension arm 31 is set on reel 37, button switch
35 are connected with motor 34, by cable extraction remotely to control motor 34.Pass through the remote controlled motor 34 of button switch 35
(motor start and stop and rotating forward, reversion etc.), motor 34 drive shaft 36 to rotate, and shaft 36 is wrapped in the liter in shaft 36 when rotating
Drop rope 32 will roll up or Panasonic is so that the hook 33 of 32 lower end of halliard rises or decline, to drive rope (subject
Product) rise or declines.
Fixed pivot 10 is building or high-altitude bracket etc., and cross bar 20 is laterally fixed on fixed pivot 10, suspension arm
31 fixations are suspended on cross bar 20.
Counterweight 50 includes the counterweight 52 of weight box lanyard 51, weight box 53 and different quality, and lanyard 51 hangs over safety belt
Hook on, the counterweight 52 of different quality is placed on inside weight box 53.In a preferred embodiment, counterweight 25kg, 10kg,
5kg, 1kg etc. are worth needs to adapt to different static load pull tests.
Number display electronic scale 60 includes number display electronic scale upper hook 61, number display lower draw-bar 62 and number display
Electronic scale ontology;
Earth anchor 70 is located at the near end of ground or wall.The U-shaped ring 71 of earth anchor exposes metope or cement flooring, the U-shaped ring of earth anchor
71 ontology is buried inside 72 inside of ground anchor wall or cement floor.
Referring to figure 2., to carry out 2205 newton to 7 safety belts (rope) 400,410,420,430,440,450,460
It is illustrated for static load pull test, test procedure includes:
1) 9 quality 25kg counterweights 52 are placed on inside weight box 53, quality 225kg, corresponding gravity is 2205 newton (gravity
Acceleration is 9.8 every kilogram of newton).
2) stretching force detecting apparatus lower draw-bar 62 and the U-shaped ring 71 of earth anchor are mounted again, number display electronic scale upper hook 61 with
The lower draw-bar of safety belt (rope) 460 mounts, and the lower draw-bar 443 and weight box lanyard 51 of safety belt (rope) 440 mount, safety belt
The lower draw-bar 413 of (rope) 410 and the upper hook 401 of safety belt (rope) 400 mount, the upper hook 411 and peace of safety belt (rope) 410
The upper hook 421 of full band (rope) 420 mounts, and similarly, safety belt (rope) 420,430,440 is connected with each other, by safety belt
(rope) 400,450,460 is connected with each other.
3) hook of crane 33 is hooked on safety belt (rope) 410.
4) controlling motor 34 by button switch 35 promotes crane hook 33 to a suitable height, weight box from
One, ground verification distance is opened, every safety belt (rope) series connection, is acted on by 2205 newton at this time.
5) it is promoted and continues after five minutes, to complete static load pull test, pay attention to monitoring stretching force detecting apparatus during the test
Reading.
6) motor 34 is controlled by button switch 35 and crane hook 33 is reduced to a suitable height, remove 7
Safety belt (rope) is removed from number display electronic scale upper hook 61, weight box lanyard 51 respectively.
According to safety belt (rope) number, the range of crane hook, it is possible to reduce or increase and once test
Item number, by changing the number of counterweight and the quality of each counterweight, so that it may change static load pulling force size.
The configuration of the present invention is simple, easy to operate, test safety belt (rope) radical is adjustable every time, can through load value of thrust size
It adjusts, detection efficiency can be significantly improved, be with a wide range of applications.Compared with prior art, the invention has the advantages that
Safety belt rope one end is fixed by stretching force detecting apparatus and earth anchorage, the safety belt rope other end with counterweight, will using crane
Safety belt rope is hung up, and after weight box leaves ground, the pulling force that safety belt rope is born is exactly the gravity of counterweight.
Its structure is simple, low in cost, easy to operate, and stability is good, and convenient for assembling and maintenance, step is simply easy to real
It is existing.It can connect and detect to a plurality of safety belt rope, static load value of thrust is adjustable, and detection efficiency is very high, can be suitable for
Rope class security tool, is with a wide range of applications.
Claims (9)
1. a kind of safety belt static load pull force tester based on crane, which is characterized in that including hoisting apparatus (30), match
Weight (50), earth anchor (70);
The hoisting apparatus (30) is fixedly mounted on building, massif or trees, and installation site has with operatively face
Certain drop height;
The operation ground is fixedly installed earth anchor (70) on the relatively-stationary building body in ground with operating;
The hoisting apparatus (30) includes halliard (32) and hook (33), and hook (33) is connect with halliard (32);
One end of tested safety belt is connect with the earth anchor (70), and the other end of tested safety belt is connect with the counterweight (50),
Tested safety belt is hung on the hook (33).
2. the safety belt static load pull force tester according to claim 1 based on crane, it is characterised in that:
It further include stretching force detecting apparatus (60), the stretching force detecting apparatus (60) is serially connected in the earth anchor (70) and the tested peace
Between full band.
3. the safety belt static load pull force tester according to claim 2 based on crane, it is characterised in that:
The stretching force detecting apparatus (60) is portable electronic scale;
The stretching force detecting apparatus (60) includes upper hook (61), lower draw-bar (62), stretching force detecting apparatus ontology (63), described
Upper hook (61) is fixedly mounted on the stretching force detecting apparatus ontology (63) above, and the lower draw-bar (62) is fixedly mounted on described
Stretching force detecting apparatus ontology (63) is below.
4. the safety belt static load pull force tester according to claim 1 based on crane, it is characterised in that:
The earth anchor (70) is U-shaped structure made of metal material, open end is embedded be fixed on the operation ground or with institute
It states on the operation relatively-stationary building body in ground.
5. the safety belt static load pull force tester according to claim 3 based on crane, it is characterised in that:
The counterweight (50) includes the counterweight (52) of weight box lanyard (51), weight box (53) and several different qualities;
The weight box (53) is body structure, is fixedly installed above weight box lanyard (51), can in weight box (53)
Accommodate several counterweights (52).
6. the safety belt static load pull force tester according to claim 5 based on crane, it is characterised in that:
The weight of several counterweights (52) is respectively 25kg, 10kg, 5kg, 1kg.
7. the safety belt static load pull force tester according to claim 1 based on crane, it is characterised in that:
The hoisting apparatus (30) is bottle gouard moved by hands or electric block.
8. a kind of detection method of the safety belt static load pull force tester described in claim 5 based on crane, special
Sign is, comprising the following steps:
S1, the counterweight (52) of constant weight is put into weight box (53);
S2, tested safety belt is connected;
S3, hook (33) is hooked on tested safety belt;
Halliard (32) and hook (33) are promoted, while lifting tested safety belt and counterweight by S4, control hoisting apparatus (30)
(50);After counterweight (50) is lifted off ground, stop being promoted;
S5, counterweight (50) vacantly continue 5 minutes;
Safety belt is fallen and removed to halliard (32) and hook (33) by S6, control hoisting apparatus (30), complete pull test.
9. the safety belt static load pull force tester according to claim 8 based on crane, it is characterised in that:
The tested safety belt of connection described in S2 includes connecting the lower draw-bar (62) of stretching force detecting apparatus (60) with the earth anchor (70);
The upper hook (61) of stretching force detecting apparatus (60) is connect with one end of the tested safety belt;The other end of tested safety belt with
Weight box lanyard (51) connection on the counterweight (50).
Priority Applications (1)
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CN201910821226.0A CN110441161A (en) | 2019-09-02 | 2019-09-02 | Safety belt static load pull force tester and method based on crane |
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CN201910821226.0A CN110441161A (en) | 2019-09-02 | 2019-09-02 | Safety belt static load pull force tester and method based on crane |
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CN201910821226.0A Pending CN110441161A (en) | 2019-09-02 | 2019-09-02 | Safety belt static load pull force tester and method based on crane |
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Cited By (3)
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CN112098228A (en) * | 2020-09-04 | 2020-12-18 | 中船黄埔文冲船舶有限公司 | Tensile test method for main machine lifting lug tool |
CN112924151A (en) * | 2021-02-09 | 2021-06-08 | 湖南三一塔式起重机械有限公司 | Tower crane hoisting mechanism test device and test method |
CN114371083A (en) * | 2021-12-06 | 2022-04-19 | 广西电网有限责任公司电力科学研究院 | Static load tension test device and method for hard ladder |
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CN114371083A (en) * | 2021-12-06 | 2022-04-19 | 广西电网有限责任公司电力科学研究院 | Static load tension test device and method for hard ladder |
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