CN108519245B - A kind of cable maintenance equipment performance test device and test method - Google Patents
A kind of cable maintenance equipment performance test device and test method Download PDFInfo
- Publication number
- CN108519245B CN108519245B CN201810374573.9A CN201810374573A CN108519245B CN 108519245 B CN108519245 B CN 108519245B CN 201810374573 A CN201810374573 A CN 201810374573A CN 108519245 B CN108519245 B CN 108519245B
- Authority
- CN
- China
- Prior art keywords
- supporting
- hollow pipe
- cable
- fixing
- shear wall
- 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.)
- Active
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 34
- 238000011056 performance test Methods 0.000 title claims abstract description 15
- 238000010998 test method Methods 0.000 title abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
一种缆索检修设备性能试验装置及测试方法，缆索检修设备性能试验装置主要由可移动支撑小车、实验部件、剪力墙组成；可移动支撑小车上焊接有金属框，金属框上端的卡槽与空心筒下端的支撑轴配合，空心筒上端装在可拆卸托架上端圆弧槽内，可拆卸托架装在剪力墙表面；该装置装配简单，能够满足缆索检修设备的性能测试要求，同时可以实现多角度性能测试，适用范围广，适合对投入使用前的缆索检修设备进行全面的试验测试。
A cable maintenance equipment performance test device and a test method. The cable maintenance equipment performance test device is mainly composed of a movable support trolley, an experimental part and a shear wall; a metal frame is welded on the movable support trolley, and a card slot on the upper end of the metal frame is connected to the movable support trolley. The support shaft at the lower end of the hollow cylinder is matched, the upper end of the hollow cylinder is installed in the circular arc groove at the upper end of the detachable bracket, and the detachable bracket is installed on the surface of the shear wall; the device is simple to assemble, and can meet the performance test requirements of cable maintenance equipment. It can realize multi-angle performance test, has a wide range of applications, and is suitable for comprehensive test testing of cable maintenance equipment before it is put into use.
Description
Technical Field
The invention relates to a test device for suspension bridge maintenance equipment, in particular to a performance test device and a performance test method for cable maintenance equipment.
Background
Suspension bridge cable maintenance equipment is the special mechanical equipment of high altitude construction who detects maintenance to structures such as suspension bridge cable and jib, should satisfy design operation requirement, possesses high-efficient reliable working capability, can maintain the detection of whole cable and jib structure and realize full coverage, and its fail-safe nature is the safety in utilization of direct concern staff's life safety and suspension bridge more. Therefore, the working performance and safety reliability of the cable maintenance equipment need to be studied. In the prior art, the suspension bridge cable is detected and maintained by walking along the cable by manpower, and is fixed on a cable handrail rope by abutting against a safety rope to protect the safety of workers, but the highest position of the cable is close to 120m, so the method has extremely low working efficiency, poor safety and severe working environment, and can not realize full coverage of detection and maintenance on the cable and a suspender structure, the suspension bridge cable detection and maintenance equipment is innovative maintenance equipment and can solve various adverse factors of the manpower detection and maintenance method, the cable detection and maintenance equipment needs to climb up and down on the cable during working, different working elevation angles and different heights need to be coped with, the change of working conditions is large, the performance requirement on the cable detection and maintenance equipment is high, and a test device and a method aiming at the cable detection and maintenance equipment do not exist at present.
Disclosure of Invention
In order to solve the problems, the invention provides a cable maintenance equipment performance test device and a test method.
The technical scheme of the invention is as follows:
the utility model provides a cable maintenance equipment performance test device, includes portable support dolly, experimental part, shear force wall, characterized by:
the movable supporting trolley comprises a trolley bottom plate and a supporting device; wheels are arranged below the vehicle bottom plate; the lower part of the supporting device is provided with two bases which are fixed on a vehicle bottom plate, a metal frame is welded above the bases, the upper part of the metal frame is provided with two supporting plates, the supporting plates are provided with clamping grooves with upward openings, through holes are arranged on two sides of the clamping grooves, the through holes are connected with the fixing pieces through bolts, and a shaft hole is arranged in the middle of the fixing pieces;
the experimental part comprises a hollow pipe and a peripheral simulation device; supporting shafts are arranged below two ends of the hollow pipe, two ends of each supporting shaft at the lower end are placed in the clamping grooves in the supporting plate, and two ends of each supporting shaft penetrate through the shaft holes of the fixing pieces; the simulation device simulates the working environment around the suspension cable;
the shear wall is a vertical wall body, through holes are uniformly distributed on the surface of the shear wall, screw rods are arranged in the through holes and used for fixing the detachable bracket, and the front end and the rear end of each screw rod are fixed by double nuts;
the detachable bracket is an I-shaped bracket, an arc groove bracket is welded on the upper end face of the detachable bracket, two ends of a support shaft at the upper end of the hollow tube are placed in the arc groove of the arc groove bracket, the rear face of the support shaft is tightly attached to the shear wall, a fixed channel steel is arranged in front of the support shaft, two ends of the fixed channel steel are respectively provided with a screw, and the support shaft is fixed through a double-nut fastening structure; the screw rod is communicated to the back of the shear wall through a through hole in the shear wall and is fixed through a double-nut structure.
Preferably, the supporting device is welded by I-shaped steel, and the peripheral reinforcing ribs are steel plates and reinforcing steel bars.
Preferably, the simulation device comprises a locking and clamping device, a suspension rod, a support rod and a handrail rope; the locking and clamping devices are arranged at two sides of the hollow pipe, and ribs are arranged below the hollow pipe; one end of the hanging rod is hinged to the lower portion of the locking and clamping device, the other end of the hanging rod is arranged in a hanging mode, a platform is welded to the two sides of the hollow pipe close to the upper portion of the hollow pipe, supporting rods are welded to the platform, and handrail ropes are mounted on the supporting rods.
Preferably, the handrail rope fixing mechanisms on the support rods are two, the handrail rope fixing mechanism arranged above is characterized in that a support piece is arranged at the end of the support rod, two fixed gaskets are respectively arranged at two sides of the support piece and fixed together through bolts, and holes for passing the handrail ropes are arranged above the fixed gaskets; the handrail rope fixing mechanism arranged on the side edge is provided with a U-shaped fixing ring on a fixing plate, and the U-shaped fixing ring is inserted on the fixing plate and is fastened through a nut.
Preferably, the surface of the hollow pipe is provided with a paint layer paint surface which is completely consistent with the paint of the suspension bridge cable, so that the friction coefficient of the working surface of the cable maintenance equipment is ensured to be consistent with the actual friction coefficient.
Preferably, the detachable bracket can be arranged on the surface of the shear wall at different height positions according to requirements.
Preferably, the hollow pipe is a low-pressure welded steel pipe for fluid transportation, has a nominal outer diameter of 864mm, a wall thickness of 9.5mm and a length of 40mm, and is formed by welding 4 steel pipes with a length of 10 m.
Preferably, the reinforcing rib below the hollow pipe is composed of a plurality of steel sheets with the thickness of 20mm and the height of 150 mm.
Preferably, the surface of the shear wall is in a step shape, the detachable brackets are respectively arranged at different positions on the shear wall, and the lower ends of the detachable brackets are required to be attached to the step surface or the ground so as to ensure the safety of the whole device and peripheral facilities.
Technical effects of the invention
The performance test device and method for the cable overhauling equipment are provided, and the test device is provided for detecting the working performance and the safety reliability of the cable overhauling equipment under different working conditions, so that the cable overhauling equipment can have a design function in actual engineering application, and specified work can be completed according to design requirements.
Drawings
FIG. 1 is a schematic structural view of a cable maintenance equipment performance test device in front view;
FIG. 2 is an enlarged schematic view of I of FIG. 1;
FIG. 3 is an enlarged view of II of FIG. 1;
FIG. 4 is a schematic view of an assembly structure of a fixed handrail rope on a stay bar;
FIG. 5 is a schematic perspective view of the experimental part;
FIG. 6 is a perspective view of the detachable bracket;
in the figure, 1, a supporting device, 101, a fixing piece, 102, a clamping groove, 103, an arc groove support, 2, a vehicle bottom plate, 3, a hollow pipe, 301, a supporting shaft, 4, a handrail rope, 5, a hanging rod, 6, a locking and clamping device, 7, a support rod, 701, a fixing gasket, 702, a fixing plate, 703, a U-shaped fixing ring, 8, a screw, 9, a detachable bracket, 901, I-shaped steel, 10, a shear wall and 11, a fixing channel steel are arranged.
Detailed Description
The first embodiment is as follows: referring to fig. 1-6, the performance test device for the cable maintenance equipment comprises a movable support trolley, an experimental part and a shear wall, and is characterized in that:
the movable supporting trolley comprises a trolley bottom plate and a supporting device; wheels are arranged below the vehicle bottom plate; the lower part of the supporting device is provided with two bases which are fixed on a vehicle bottom plate, a metal frame is welded above the bases, the upper part of the metal frame is provided with two supporting plates, the supporting plates are provided with clamping grooves with upward openings, through holes are arranged on two sides of the clamping grooves, the through holes are connected with the fixing pieces through bolts, and a shaft hole is arranged in the middle of the fixing pieces;
the experimental part comprises a hollow pipe and a peripheral simulation device; supporting shafts are arranged below two ends of the hollow pipe, two ends of each supporting shaft at the lower end are placed in the clamping grooves in the supporting plate, and two ends of each supporting shaft penetrate through the shaft holes of the fixing pieces; the simulation device simulates the working environment around the suspension cable;
the shear wall is a vertical wall body, through holes are uniformly distributed on the surface of the shear wall, screw rods are arranged in the through holes and used for fixing the detachable bracket, and the front end and the rear end of each screw rod are fixed by double nuts;
the detachable bracket is an I-shaped bracket, an arc groove bracket is welded on the upper end face of the detachable bracket, two ends of a support shaft at the upper end of the hollow tube are placed in the arc groove of the arc groove bracket, the rear face of the support shaft is tightly attached to the shear wall, a fixed channel steel is arranged in front of the support shaft, two ends of the fixed channel steel are respectively provided with a screw, and the support shaft is fixed through a double-nut fastening structure; the screw rod is communicated to the back of the shear wall through a through hole in the shear wall and is fixed through a double-nut structure.
The supporting device is welded by I-shaped steel, and the peripheral reinforcing ribs are steel plates and reinforcing steel bars.
The simulation device comprises a locking and clamping device, a hanging rod, a supporting rod and a handrail rope; the locking and clamping devices are arranged at two sides of the hollow pipe, and ribs are arranged below the hollow pipe; one end of the hanging rod is hinged to the lower portion of the locking and clamping device, the other end of the hanging rod is arranged in a hanging mode, a platform is welded to the two sides of the hollow pipe close to the upper portion of the hollow pipe, supporting rods are welded to the platform, and handrail ropes are mounted on the supporting rods.
The handrail rope fixing mechanisms arranged above are two types, the end of the stay bar is provided with a supporting piece, two sides of the supporting piece are respectively provided with a fixing gasket which is fixed together through bolts, and holes for the handrail ropes to pass through are arranged above the fixing gaskets; the handrail rope fixing mechanism arranged on the side edge is provided with a U-shaped fixing ring on a fixing plate, and the U-shaped fixing ring is inserted on the fixing plate and is fastened through a nut.
The surface of the hollow pipe is provided with a paint layer, and the paint layer is completely consistent with the paint of the suspension bridge cable, so that the friction coefficient of the working surface of the cable maintenance equipment is ensured to be consistent with the actual friction coefficient.
The detachable bracket can be arranged on different height positions of the surface of the shear wall according to requirements.
The hollow pipe is a welded steel pipe for low-pressure fluid conveying, has a nominal outer diameter of 864mm, a wall thickness of 9.5mm and a length of 40mm, and is formed by welding 4 steel pipes with a length of 10 m.
The reinforcing rib below the hollow pipe is composed of a plurality of steel sheets with the thickness of 20mm and the height of 150 mm.
The surface of the shear wall is in a step shape, the detachable brackets are respectively arranged at different positions on the shear wall, and the lower ends of the detachable brackets are required to be attached to the step surface or the ground so as to ensure the safety of the whole device and peripheral facilities.
Based on cable maintenance equipment performance test device, its application method is:
firstly, mounting a detachable bracket on a screw rod at the lower side of a shear wall;
secondly, the hollow pipe is arranged in an arc groove above the detachable bracket by a crane;
thirdly, the other end of the hollow pipe is arranged in a clamping groove above the supporting trolley and is fixed by a fixing piece, so that unstable connection is prevented;
fourthly, the cable maintenance equipment is arranged on the device from the end of the support trolley, the cable maintenance equipment is started to move to the highest position and then returns, and in the process, the use functions, the equipment strength and the working stability of various devices on the cable maintenance equipment are tested;
and fifthly, detaching the cable maintenance equipment, hoisting the hollow pipe on the detachable bracket on the upper layer by using a crane, changing the angle of the hollow pipe, and repeating the steps.
Claims (10)
1. The utility model provides a cable maintenance equipment performance test device, includes portable support dolly, experimental part, shear force wall, characterized by:
the movable supporting trolley comprises a trolley bottom plate and a supporting device; wheels are arranged below the vehicle bottom plate; the lower part of the supporting device is provided with two bases which are fixed on a vehicle bottom plate, a metal frame is welded above the bases, the upper part of the metal frame is provided with two supporting plates, the supporting plates are provided with clamping grooves with upward openings, through holes are arranged on two sides of the clamping grooves, the through holes are connected with the fixing pieces through bolts, and a shaft hole is arranged in the middle of the fixing pieces;
the experimental part comprises a hollow pipe and a peripheral simulation device; supporting shafts are arranged below two ends of the hollow pipe, two ends of each supporting shaft at the lower end are placed in the clamping grooves in the supporting plate, and two ends of each supporting shaft penetrate through the shaft holes of the fixing pieces; the simulation device simulates the working environment around the suspension cable;
the shear wall is a vertical wall body, through holes are uniformly distributed on the surface of the shear wall, screw rods are arranged in the through holes and used for fixing the detachable bracket, and the front end and the rear end of each screw rod are fixed by double nuts;
the detachable bracket is an I-shaped bracket, an arc groove bracket is welded on the upper end face of the detachable bracket, two ends of a support shaft at the upper end of the hollow tube are placed in the arc groove of the arc groove bracket, the rear face of the support shaft is tightly attached to the shear wall, a fixed channel steel is arranged in front of the support shaft, two ends of the fixed channel steel are respectively provided with a screw, and the support shaft is fixed through a double-nut fastening structure; the screw rod is communicated to the back of the shear wall through a through hole in the shear wall and is fixed through a double-nut structure.
2. The cable service equipment performance testing apparatus of claim 1, wherein: the supporting device is welded by I-shaped steel, and the peripheral reinforcing ribs are steel plates and reinforcing steel bars.
3. The cable service equipment performance testing apparatus of claim 1, wherein: the simulation device comprises a locking and clamping device, a hanging rod, a supporting rod and a handrail rope; the locking and clamping devices are arranged at two sides of the hollow pipe, and ribs are arranged below the hollow pipe; one end of the hanging rod is hinged to the lower portion of the locking and clamping device, the other end of the hanging rod is arranged in a hanging mode, a platform is welded to the two sides of the hollow pipe close to the upper portion of the hollow pipe, supporting rods are welded to the platform, and handrail ropes are mounted on the supporting rods.
4. A cable service equipment performance testing apparatus as claimed in claim 3, wherein: the handrail rope fixing mechanisms arranged above are two types, the end of the stay bar is provided with a supporting piece, two sides of the supporting piece are respectively provided with a fixing gasket which is fixed together through bolts, and holes for the handrail ropes to pass through are arranged above the fixing gaskets; the handrail rope fixing mechanism arranged on the side edge is provided with a U-shaped fixing ring on a fixing plate, and the U-shaped fixing ring is inserted on the fixing plate and is fastened through a nut.
5. The cable service equipment performance testing apparatus of claim 1, wherein: the surface of the hollow pipe is provided with a paint layer, and the paint layer is completely consistent with the paint of the suspension bridge cable.
6. The cable service equipment performance testing apparatus of claim 1, wherein: the detachable bracket can be arranged on different height positions of the surface of the shear wall according to requirements.
7. The cable service equipment performance testing apparatus of claim 1, wherein: the hollow pipe is a welded steel pipe for low-pressure fluid conveying, has a nominal outer diameter of 864mm, a wall thickness of 9.5mm and a length of 40mm, and is formed by welding 4 steel pipes with a length of 10 m.
8. The cable service equipment performance testing apparatus of claim 1, wherein: the reinforcing rib below the hollow pipe is composed of a plurality of steel sheets with the thickness of 20mm and the height of 150 mm.
9. The cable service equipment performance testing apparatus of claim 1, wherein: the surface of the shear wall is in a step shape, the detachable brackets are respectively arranged at different positions on the shear wall, and the lower ends of the detachable brackets are required to be attached to the step surface or the ground.
10. A cable service equipment performance testing device as claimed in claim 1, using method comprising:
firstly, mounting a detachable bracket on a screw rod at the lower side of a shear wall;
secondly, the hollow pipe is arranged in an arc groove above the detachable bracket by a crane;
thirdly, the other end of the hollow pipe is arranged in a clamping groove above the supporting trolley and is fixed by a fixing piece, so that unstable connection is prevented;
fourthly, the cable maintenance equipment is arranged on the device from the end of the support trolley, the cable maintenance equipment is started to move to the highest position and then returns, and in the process, the use functions, the equipment strength and the working stability of various devices on the cable maintenance equipment are tested;
and fifthly, detaching the cable maintenance equipment, hoisting the hollow pipe on the detachable bracket on the upper layer by using a crane, changing the angle of the hollow pipe, and repeating the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374573.9A CN108519245B (en) | 2018-04-24 | 2018-04-24 | A kind of cable maintenance equipment performance test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374573.9A CN108519245B (en) | 2018-04-24 | 2018-04-24 | A kind of cable maintenance equipment performance test device and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108519245A CN108519245A (en) | 2018-09-11 |
| CN108519245B true CN108519245B (en) | 2021-01-12 |
Family
ID=63430115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374573.9A Active CN108519245B (en) | 2018-04-24 | 2018-04-24 | A kind of cable maintenance equipment performance test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108519245B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116254763A (en) * | 2022-12-26 | 2023-06-13 | 成都市新筑路桥机械股份有限公司 | A main cable handrail rope support that facilitates the passing of the main cable inspection vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179844Y (en) * | 1993-10-26 | 1994-10-19 | 上海市建工设计研究院 | Inspection trolley for ropes |
| CN1351710A (en) * | 1999-03-29 | 2002-05-29 | 奥蒂斯电梯公司 | Method and apparatus for detecting elevator rope degradation using electrical or magnetic energy |
| US6502457B1 (en) * | 2000-02-18 | 2003-01-07 | The United States Of America As Represented By The Secretary Of The Navy | Countermeasure hovering test fixture |
| CN201400851Y (en) * | 2009-04-14 | 2010-02-10 | 重庆交通大学 | A bridge cable health detection robot |
| CN202390774U (en) * | 2012-01-11 | 2012-08-22 | 中建七局第二建筑有限公司 | Maintenance hanging basket for anti-collision wall |
| CN102689633A (en) * | 2011-03-23 | 2012-09-26 | 波马加尔斯基公司 | Aerial cable transport installation provided with maintenance vehicle |
| CN204455816U (en) * | 2015-03-05 | 2015-07-08 | 招商局重庆交通科研设计院有限公司 | Hydraulic-driven bridge cable inspection arch maintenance robot |
| CN106053591A (en) * | 2015-04-13 | 2016-10-26 | 法策股份公司钢丝绳厂 | Inspection and monitoring system for a cable railway, and method for operating the same |
-
2018
- 2018-04-24 CN CN201810374573.9A patent/CN108519245B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179844Y (en) * | 1993-10-26 | 1994-10-19 | 上海市建工设计研究院 | Inspection trolley for ropes |
| CN1351710A (en) * | 1999-03-29 | 2002-05-29 | 奥蒂斯电梯公司 | Method and apparatus for detecting elevator rope degradation using electrical or magnetic energy |
| US6502457B1 (en) * | 2000-02-18 | 2003-01-07 | The United States Of America As Represented By The Secretary Of The Navy | Countermeasure hovering test fixture |
| CN201400851Y (en) * | 2009-04-14 | 2010-02-10 | 重庆交通大学 | A bridge cable health detection robot |
| CN102689633A (en) * | 2011-03-23 | 2012-09-26 | 波马加尔斯基公司 | Aerial cable transport installation provided with maintenance vehicle |
| CN202390774U (en) * | 2012-01-11 | 2012-08-22 | 中建七局第二建筑有限公司 | Maintenance hanging basket for anti-collision wall |
| CN204455816U (en) * | 2015-03-05 | 2015-07-08 | 招商局重庆交通科研设计院有限公司 | Hydraulic-driven bridge cable inspection arch maintenance robot |
| CN106053591A (en) * | 2015-04-13 | 2016-10-26 | 法策股份公司钢丝绳厂 | Inspection and monitoring system for a cable railway, and method for operating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108519245A (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102864936B (en) | Combination lifting construction method for large-scale high hollow building roof of steel structure | |
| CN204815441U (en) | High altitude construction safety belt hangs lifeline system | |
| CN206580481U (en) | A kind of indoor horizontal lifting pipeline erecting device | |
| CN101402436A (en) | Method and apparatus for disassembling cargo boom of climbing tower crane | |
| CN108519245B (en) | A kind of cable maintenance equipment performance test device and test method | |
| CN205773024U (en) | Convenient pipeline promotes auxiliary device | |
| CN210884873U (en) | Installation hanging beam and lifting device of pipeline | |
| CN204753397U (en) | Temporary mounting hanger for steel box bridge | |
| CN220537296U (en) | Pipeline overhead hoist | |
| CN108059091A (en) | A kind of Feeding System of Urban Rail Transit disk cabinet installs crane boom | |
| CN101695984B (en) | The installation method and spreader of longitudinal and transverse beams under the arch of the half-through concrete-filled steel tube concrete arch bridge | |
| CN104278628B (en) | A kind of light hanging basket being applicable to bridge machinery and maintenance activity | |
| CN203486787U (en) | Integral lifting device for cabinet top of Wiggins coal gas cabinet | |
| CN207470226U (en) | A kind of shield tunnel emergency repair tears gate-type frame open with quick peace | |
| CN206174481U (en) | Jack -up instrument is used in fan hoist and mount of tuber pipe and suspension type installation | |
| CN215160435U (en) | Deep basal pit excavation material overhead hoist | |
| CN100532243C (en) | Truss leg monolithic spreader | |
| CN205743035U (en) | Assembled anchorage joint structure for spherical steel net frame integral hoisting | |
| CN203497919U (en) | Integral lifting device of helicopter platform | |
| CN204401454U (en) | A kind of light hanging basket being applicable to bridge machinery and maintenance activity | |
| CN107700824A (en) | Bar type wall-attached frame | |
| CN218371429U (en) | crane | |
| CN221216936U (en) | Wall-riding type installation hanging bracket of high-altitude hoisting equipment | |
| CN111776937A (en) | Prefabricated hoisting device and usage for hoisting I-beam and its combined modules | |
| CN218320305U (en) | Simple high-altitude hanging device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |