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 PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
safety belt
tested
crane
hook
static load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910821226.0A
Other languages
Chinese (zh)
Inventor
田树军
郭金明
邓雨荣
卓浩泽
赵坚
俸波
王飞风
何志武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electric Power Research Institute of Guangxi Power Grid Co Ltd
Original Assignee
Electric Power Research Institute of Guangxi Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electric Power Research Institute of Guangxi Power Grid Co Ltd filed Critical Electric Power Research Institute of Guangxi Power Grid Co Ltd
Priority to CN201910821226.0A priority Critical patent/CN110441161A/en
Publication of CN110441161A publication Critical patent/CN110441161A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/14Investigating 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0003Steady
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0017Tensile
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0032Generation of the force using mechanical means
    • G01N2203/0033Weight
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075Strain-stress relations or elastic constants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0262Shape of the specimen
    • G01N2203/0278Thin specimens
    • G01N2203/0282Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes

Landscapes

  • 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

Safety belt static load pull force tester and method based on crane
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).
CN201910821226.0A 2019-09-02 2019-09-02 Safety belt static load pull force tester and method based on crane Pending CN110441161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910821226.0A CN110441161A (en) 2019-09-02 2019-09-02 Safety belt static load pull force tester and method based on crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910821226.0A CN110441161A (en) 2019-09-02 2019-09-02 Safety belt static load pull force tester and method based on crane

Publications (1)

Publication Number Publication Date
CN110441161A true CN110441161A (en) 2019-11-12

Family

ID=68438724

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910821226.0A Pending CN110441161A (en) 2019-09-02 2019-09-02 Safety belt static load pull force tester and method based on crane

Country Status (1)

Country Link
CN (1) CN110441161A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757714U (en) * 2010-08-13 2011-03-09 宝鸡石油机械有限责任公司 Ground anchor type static load testing device
CN201837565U (en) * 2010-10-15 2011-05-18 荆州供电公司输电中心 Safety belt mass test device
CN203373014U (en) * 2013-07-25 2014-01-01 杭州市特种设备检测院 Static load loading apparatus of overhead and gantry crane
CN103528786A (en) * 2013-10-12 2014-01-22 国家电网公司 Multifunctional test device and working method thereof
KR20140004018U (en) * 2012-12-21 2014-07-01 현대중공업 주식회사 Load test apparatus of beam for ship
CN109342898A (en) * 2018-11-12 2019-02-15 广西电网有限责任公司电力科学研究院 A kind of electrical pressure test wiring system of insulating tool
CN110160817A (en) * 2019-06-19 2019-08-23 江苏省特种设备安全监督检验研究院 Electric block tests reinforcement poise system and its application method
CN211374363U (en) * 2019-09-02 2020-08-28 广西电网有限责任公司电力科学研究院 Safety belt tensile test device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757714U (en) * 2010-08-13 2011-03-09 宝鸡石油机械有限责任公司 Ground anchor type static load testing device
CN201837565U (en) * 2010-10-15 2011-05-18 荆州供电公司输电中心 Safety belt mass test device
KR20140004018U (en) * 2012-12-21 2014-07-01 현대중공업 주식회사 Load test apparatus of beam for ship
CN203373014U (en) * 2013-07-25 2014-01-01 杭州市特种设备检测院 Static load loading apparatus of overhead and gantry crane
CN103528786A (en) * 2013-10-12 2014-01-22 国家电网公司 Multifunctional test device and working method thereof
CN109342898A (en) * 2018-11-12 2019-02-15 广西电网有限责任公司电力科学研究院 A kind of electrical pressure test wiring system of insulating tool
CN110160817A (en) * 2019-06-19 2019-08-23 江苏省特种设备安全监督检验研究院 Electric block tests reinforcement poise system and its application method
CN211374363U (en) * 2019-09-02 2020-08-28 广西电网有限责任公司电力科学研究院 Safety belt tensile test device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Similar Documents

Publication Publication Date Title
CN110441161A (en) Safety belt static load pull force tester and method based on crane
CN105896379B (en) For the live working platform of overhead transmission line
US20080223134A1 (en) Method and Device For Testing the Stability and/or Bending Strength of Masts
CN105151941B (en) A kind of elevator governor lifting force test device and method
CN110696967A (en) Automatic online monitoring buoy system for ocean profile
CN108088695A (en) The load testing apparatus of single drum double-rope hoist engine
CN211825068U (en) Ship winch test bed
CN116891183B (en) Material overhead hoist is used in bridge engineering construction
CN211374363U (en) Safety belt tensile test device
CN108117020A (en) A kind of street lamp erecting device
CN105019866B (en) A kind of efficient direct-drive oil extractor with single action pulley and single fixed pulley
CN208762042U (en) A kind of Simple high-altitude operation hanging crane
CN208833460U (en) The excitation application system of tall and slender structure
CN211475368U (en) Lifting display screen
CN106760569B (en) A kind of architectural engineering material lifting device
CN111855126A (en) Safety device detection device
CN107585652A (en) A kind of used during elevator falling intelligence counterweight deceleration device
US11661312B2 (en) Hoisting rope monitoring device
CN103063175A (en) Hanging-type electric displacement measuring device
JP7086379B2 (en) Building wall inspection equipment
CN212340594U (en) Safety device detection device
CN109781558A (en) A kind of program control type mechanical stress experimental rig
CN215715617U (en) Foundation bearing test rapid detection device
CN214096569U (en) Portable combined type multi-station safety belt testing tool
CN107473037A (en) Elevator governor detects corollary equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination