CN115123963A - Rotary boom type pipeline carrying lifting vehicle and using method thereof - Google Patents

Rotary boom type pipeline carrying lifting vehicle and using method thereof Download PDF

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Publication number
CN115123963A
CN115123963A CN202210800860.8A CN202210800860A CN115123963A CN 115123963 A CN115123963 A CN 115123963A CN 202210800860 A CN202210800860 A CN 202210800860A CN 115123963 A CN115123963 A CN 115123963A
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CN
China
Prior art keywords
pipeline
arm
clamp
power device
roller
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
CN202210800860.8A
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Chinese (zh)
Inventor
赵艳
孟庆礼
张项宁
张晓明
蒋建云
刘艳婷
肖辉茹
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.)
China Construction First Group Corp Ltd
China Construction First Bureau Group Installation Engineering Co Ltd
Original Assignee
China Construction First Group Corp Ltd
China Construction First Bureau Group Installation Engineering 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 China Construction First Group Corp Ltd, China Construction First Bureau Group Installation Engineering Co Ltd filed Critical China Construction First Group Corp Ltd
Priority to CN202210800860.8A priority Critical patent/CN115123963A/en
Publication of CN115123963A publication Critical patent/CN115123963A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0625Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065Scissor linkages, i.e. X-configuration
    • B66F7/0666Multiple scissor linkages vertically arranged
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention discloses a rotary lifting arm type pipeline carrying lifting vehicle and a using method thereof. The pipeline semi-automatic lifting device is provided with the working arm for fixing and conveying the pipeline, the fixing platform is used for placing and adjusting the pipeline, and the fixing platform and the pipeline are lifted to the required height together through the lifting mechanism, so that the semi-automatic conveying and lifting operation of the pipeline is realized, the manual operation amount is reduced, the operation efficiency is improved, the labor intensity and the construction cost are reduced, and the construction safety can be ensured.

Description

Rotary boom type pipeline carrying lifting vehicle and using method thereof
Technical Field
The invention relates to the technical field of pipeline installation construction tools, in particular to a rotary boom type pipeline carrying lifting vehicle and a using method thereof.
Background
In the construction process of buildings, manual installation is mostly adopted in the hoisting and fixing construction operation of pipelines, and the manual installation has the advantages of simplicity in operation, low operation difficulty and easiness in operation, but has more defects, namely, the requirement on the number of constructors is high, multiple workers are needed to cooperate, the labor intensity is high, the workload is large, and the working efficiency is low; and secondly, auxiliary devices such as a hoisting mechanism and a scaffold need to be erected for auxiliary construction, so that the workload can be further increased, the operation is complex, and meanwhile, the construction risk is high. The invention provides a rotary lifting arm type pipeline carrying lifting vehicle and a using method thereof, which are used for solving the problems.
Disclosure of Invention
The invention provides a rotary cantilever type pipeline carrying lifting vehicle and a using method thereof, which replace most of manual operation, realize semi-automatic carrying and lifting of a pipeline, improve the operation efficiency and reduce the labor intensity.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a rotary lifting arm type pipeline carrying lifting vehicle comprises a chassis, a lifting mechanism, a working platform, a working arm, a pipeline clamp and a control system, wherein the lifting mechanism, the working arm and the control system are arranged on the chassis;
the working arm comprises a fixed rotating arm, a telescopic suspension arm and a first power device, wherein the fixed rotating arm is movably connected to the chassis and positioned on two sides of the chassis, the fixed rotating arm is connected with the chassis through the first power device, the telescopic suspension arm is correspondingly arranged on the fixed rotating arm, a connecting shaft is arranged between the two telescopic suspension arms, and the pipeline clamp is arranged on the connecting shaft at intervals.
Further, work platform includes translation structure, support body, folding support and roller components, the support body passes through the translation structure to be established on lifting mechanism, folding support establishes on the front and back terminal surface of support body, roller components establishes on the support body.
Further, the translation structure includes translation mount and translation balladeur train, translation mount fixed connection is at the lifting mechanism top, the translation balladeur train is established in the support body bottom to swing joint is on the translation mount.
Further, the roller components are arranged at the front end and the rear end of the surface of the frame body and comprise sliding grooves, sliding rails and carrier roller sets, the sliding grooves are arranged on the surface of the frame body, the sliding rails are located in the sliding grooves, and the carrier roller sets are arranged on the sliding rails at intervals.
Further, folding support sets up in pairs, and two folding support sets up relatively on the terminal surface of support body, folding support includes cradling piece and articulated seat, the cradling piece is connected in the both sides of support body terminal surface through articulated seat.
Furthermore, the lifting mechanism comprises a lifting arm, a fixed platform and a power device II, the lifting arm is arranged on the chassis and driven by the power device II, and the fixed platform is arranged on the lifting arm.
Furthermore, the pipeline clamp comprises a pipeline clamp and a third power device, wherein the third power device is arranged in the pipeline clamp and drives the pipeline clamp to open and close.
Further, the roller assemblies are arranged in pairs, the roller assemblies arranged in pairs are positioned at the front end part and the rear end part of the surface of the frame body, and the carrier roller groups on the two roller assemblies are arranged in a staggered manner.
Further, the chassis comprises a frame, movable wheels, a detection structure and support legs, and the control system is arranged on the frame.
A use method of a rotary lifting arm type pipeline carrying lifting vehicle comprises the following steps:
s1, the device is in place: the frame is moved to a pipeline storage position through the matching of the control system and the detection structure, and the position is adjusted, so that the working platform is aligned to the pipeline;
s2, clamping the pipeline: controlling a power device I to move, pushing a fixed rotating arm to rotate forwards to a clamping state, manually clamping the pipeline clamp on two sides of the upper wall of the pipeline, and controlling a power device III to drive the pipeline clamp to retract to clamp the pipeline;
s3, conveying the pipeline: adjusting the position of the roller assembly, corresponding to the pipeline and matching with the outer diameter of the pipeline, then controlling a power device to move to drive the fixed rotating arm to rotate backwards, pulling the pipeline to hoist the pipeline, controlling the frame body to move forwards to the lower part of the pipeline after the hoisted end part of the pipeline is higher than the working platform, continuing controlling the fixed rotating arm to rotate backwards until the fixed rotating arm resets, and enabling the middle part of the pipeline to be in contact with the roller assembly positioned at the front end and to be gradually leveled on the roller assembly;
s4, the pipe is in place: after the fixed rotating arm is reset, the telescopic suspension arm is controlled to extend out to drive the pipeline to translate backwards until the two ends of the pipeline are positioned on the roller wheel assemblies, then the pipeline clamp is controlled to loosen the pipeline, and meanwhile the frame body is controlled to reset;
s5, installation and construction: manually opening the folding support and placing the cross arm, controlling the vehicle body to move to the pipeline installation position, unfolding the supporting legs to support the vehicle frame, controlling the lifting mechanism to rise to the operation height and lock, and then performing the pipeline installation operation until the operation is completed.
The invention has the following beneficial effects:
the working arm is arranged for fixing and carrying the pipeline, the fixing platform is used for placing and adjusting the pipeline, the fixing platform and the pipeline are lifted to the required height together through the lifting mechanism, semi-automatic carrying and lifting operation of the pipeline are achieved, manual operation amount is reduced, operation efficiency is improved, labor intensity and construction cost are reduced, and construction safety can be guaranteed.
Drawings
FIG. 1 is a schematic front view of a lifting state of the present invention;
FIG. 2 is a schematic diagram of a lifting state structure according to the present invention;
FIG. 3 is a schematic view of a gripping pipe according to the present invention;
FIG. 4 is a schematic view of a pipe gripping device according to the present invention;
FIG. 5 is a schematic front view of a pipe handling apparatus according to the present invention;
FIG. 6 is a schematic view of the pipe clamp of the present invention;
fig. 7 is a schematic view of the structure of the roller assembly of the present invention.
Reference numerals are as follows: 1-chassis, 2-lifting mechanism, 21-lifting arm, 22-fixed platform, 3-working platform, 31-translation structure, 32-frame body, 33-folding bracket, 34-roller assembly, 341-sliding chute, 342-sliding rail, 343-roller group, 4-working arm, 41-fixed rotating arm, 42-telescopic suspension arm, 43-power device I, 44-connecting shaft, 5-pipeline clamp, 51-pipeline clamp, 52-power device III and 6-control system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.
As shown in fig. 1, 2, 3, 4, and 5, a rotary boom type pipeline carrying lifting vehicle comprises a chassis 1, a lifting mechanism 2, a working platform 3, a working arm 4, a pipeline clamp 5, and a control system 6, wherein the lifting mechanism 2, the working arm 4, and the control system 6 are arranged on the chassis 1, the working platform 3 is arranged on the lifting mechanism 2, the pipeline clamp 5 is arranged on the working arm 4, and the control system 6 is electrically connected with the chassis 1, the lifting mechanism 2, the working platform 3, the working arm 4, and the pipeline clamp 5. The chassis 1 plays the effect of removal, fixed stay, and lifting mechanism 2 is used for lifting work platform 3 and pipeline to the assigned height, and work platform 3 is used for placing and bears the weight of the pipeline, and work arm 4 is used for carrying the pipeline through removing, carries the pipeline to work platform 3 from the ground on, and pipeline anchor clamps 5 are used for the fixed pipeline of centre gripping, and control system 6 is used for controlling each mechanism motion.
As shown in fig. 4, the working arm 4 includes a fixed rotating arm 41, a telescopic boom 42 and a power device 43, the fixed rotating arm 41 and the telescopic boom 42 are both provided with two parts, which are located at two sides of the working and corresponding to each other, the fixed end of the fixed rotating arm 41 is hinged and connected to the chassis 1, the fixed rotating arm 41 is provided with two parts, which are located at two sides of the chassis 1, the power device 43 is connected between the fixed rotating arm 41 and the chassis 1, the fixed rotating arm 41 is driven to rotate around the fixed end thereof, the telescopic boom 42 is correspondingly arranged on the fixed rotating arm 41 and is telescopic in the fixed rotating arm 41, a connecting shaft 44 is arranged between the two telescopic booms 42, and the pipe clamp 5 is arranged on the connecting shaft 44 at intervals.
Preferably, the telescopic boom 42 is an L-shaped structure.
As shown in fig. 3, further, the working platform 3 includes a translation structure 31, a frame body 32, a folding bracket 33 and a roller assembly 34, the frame body 32 is disposed on the lifting mechanism 2 through the translation structure 31, the folding bracket 33 is disposed on the front and rear end surfaces of the frame body 32 for placing a cross arm, and the roller assembly 34 is disposed on the frame body 32.
As shown in fig. 3, further, the translation structure 31 includes a translation fixing frame fixedly connected to the top end of the lifting mechanism 2, and a translation carriage movably connected to the translation fixing frame through a power device and disposed at the bottom of the frame body 32.
As shown in fig. 7, further, the roller assembly 34 is disposed at the front and rear end portions of the surface of the frame body 32 and can move left and right to adjust the alignment position of the pipe, the roller assembly 34 includes a sliding groove 341, a sliding rail 342, and a roller group 343, the sliding groove 341 is disposed on the frame body 32, the sliding rail 342 is located in the sliding groove 341, and the roller group 343 is disposed on the sliding rail 342 at intervals.
Further, the roller group 343 moves left and right on the slide rail 342, and the slide rail 342 moves left and right in the slide groove 341. The pipeline is placed in order to satisfy through the two-stage movement, and the pipeline that adapts to different pipe diameters is placed.
Further, folding support 33 sets up in pairs, and two folding supports 33 set up relatively on the terminal surface of support body 32, folding support 33 includes cradling piece and articulated seat, the cradling piece is connected in the both sides of support body 32 terminal surface through articulated seat.
As shown in fig. 3, further, the lifting mechanism 2 includes a lifting arm 21, a fixed platform 22 and a second power device, the lifting arm 21 is disposed on the chassis 1 and is driven by the second power device, the fixed platform 22 is disposed on the top of the lifting arm 21, and the translational fixed frame is fixedly connected to the fixed platform 22.
As shown in fig. 6, the pipe clamp 5 further includes a pipe clamp 51 and a third power device 52, wherein the third power device 52 is disposed in the pipe clamp 51 and drives the pipe clamp 51 to open and close.
Further, the roller assemblies 34 are arranged in pairs, the roller assemblies 34 arranged in pairs are located at the front and rear ends of the surface of the frame body 32, and the roller sets 343 on the two roller assemblies 34 are arranged in a staggered manner.
Further, the chassis 1 comprises a frame, moving wheels, a detection structure and support legs, and the control system 6 is arranged on the frame.
Preferably, the detection structure is a radar system and is used for positioning a working position and detecting an environment, automatic and intelligent operation can be realized through the cooperation of the detection structure and the control device, and the construction efficiency is improved.
A use method of a rotary lifting arm type pipeline carrying lifting vehicle comprises the following steps:
s1, the device is in place: the frame is moved to a pipeline storage position through the matching of the control system 6 and the detection structure, and the position is adjusted, so that the working platform 3 is aligned to the pipeline;
s2, clamping the pipeline: controlling a first power device 43 to move, pushing the fixed rotating arm 41 to rotate forwards to a clamping state, manually clamping the pipeline clamp 51 on two sides of the upper wall of the pipeline, and controlling a third power device 52 to drive the pipeline clamp 51 to retract so as to clamp the pipeline;
s3, conveying the pipeline: adjusting the position of the roller assembly 34, corresponding to the pipeline and matching with the outer diameter of the pipeline, then controlling a first power device 43 to move to drive a fixed rotating arm 41 to rotate backwards, pulling the pipeline to hoist the pipeline, after the hoisted end of the pipeline is higher than the working platform 3, moving a control frame body 32 forwards to the lower part of the pipeline, continuing controlling the fixed rotating arm 41 to rotate backwards until the fixed rotating arm is reset, and contacting the middle part of the pipeline with the roller assembly 34 positioned at the front end and gradually flatting the middle part of the pipeline on the roller assembly 34;
s4, the pipe is in place: after the fixed rotating arm 41 is reset, the telescopic boom 42 is controlled to extend out to drive the pipeline to translate backwards until the two ends of the pipeline are positioned on the roller wheel assemblies 34, then the pipeline clamp 51 is controlled to loosen the pipeline, and meanwhile, the frame body 32 is controlled to reset;
s5, installation and construction: the folding bracket 33 is manually opened, cross arm accessories are placed, the vehicle body is controlled to move to the pipeline installation position, the support legs are unfolded to support the vehicle frame, the lifting mechanism 2 is controlled to be lifted to the operation height and locked, and then the pipeline installation operation is carried out until the operation is completed.
The carrying and lifting vehicle can be operated by 1-2 persons, can carry and lift 2-4 pipelines at a time, has less manual operation workload in the carrying and lifting process, and can effectively reduce the labor intensity and improve the construction efficiency.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (10)

1. A rotary lifting arm type pipeline carrying lifting vehicle is characterized by comprising a chassis (1), a lifting mechanism (2), a working platform (3), a working arm (4), a pipeline clamp (5) and a control system (6), wherein the lifting mechanism (2), the working arm (4) and the control system (6) are arranged on the chassis (1), the working platform (3) is arranged on the lifting mechanism (2), the pipeline clamp (5) is arranged on the working arm (4), and the control system (6) is electrically connected with the chassis (1), the lifting mechanism (2), the working platform (3), the working arm (4) and the pipeline clamp (5);
the working arm (4) comprises a fixed rotating arm (41), a telescopic boom (42) and a power device (43), the fixed rotating arm (41) is movably connected to the chassis (1) and located on two sides of the chassis (1), the fixed rotating arm (41) is connected with the chassis (1) through the power device (43), the telescopic boom (42) is correspondingly arranged on the fixed rotating arm (41), a connecting shaft (44) is arranged between the two telescopic booms (42), and the pipeline clamp (5) is arranged on the connecting shaft (44) at intervals.
2. The rotary boom pipe handling lift truck of claim 1 wherein: work platform (3) are including translation structure (31), support body (32), folding support (33) and roller components (34), establish on lifting mechanism (2) through translation structure (31) support body (32), establish on the front and back terminal surface of support body (32) folding support (33), roller components (34) are established on support body (32).
3. The rotary boom pipe handling lift truck of claim 2 wherein: translation structure (31) are including translation mount and translation balladeur train, translation mount fixed connection is on lifting mechanism (2) top, the translation balladeur train is established in support body (32) bottom to swing joint is on the translation mount.
4. The rotary boom pipe handling lift truck of claim 2 wherein: the roller wheel assembly (34) is arranged at the front end part and the rear end part of the surface of the frame body (32), the roller wheel assembly (34) comprises a sliding groove (341), a sliding rail (342) and a carrier roller group (343), the sliding groove (341) is arranged on the frame body (32), the sliding rail (342) is positioned in the sliding groove (341), and the carrier roller group (343) is arranged on the sliding rail (342) at intervals.
5. The rotary boom pipe handling lift truck of claim 2 wherein: folding support (33) set up in pairs, and two folding support (33) set up relatively on the terminal surface of support body (32), folding support (33) include cradling piece and articulated seat, the cradling piece is connected in the both sides of support body (32) terminal surface through articulated seat.
6. The rotary boom pipe handling lift truck of claim 1 wherein: lifting mechanism (2) are including lifing arm (21), fixed platform (22) and power device two, lifing arm (21) are established on chassis (1) to through the drive of power device two, fixed platform (22) are established on lifing arm (21).
7. The rotary boom pipe handling lift truck of claim 1 wherein: the pipeline clamp (5) comprises a pipeline clamp (51) and a power device III (52), wherein the power device III (52) is arranged in the pipeline clamp (51) and drives the pipeline clamp (51) to be opened and closed.
8. The rotary boom pipe handling lift truck of claim 4 wherein: the roller assemblies (34) are arranged in pairs, the roller assemblies (34) arranged in pairs are positioned at the front end part and the rear end part of the surface of the frame body (32), and the carrier roller sets (343) on the two roller assemblies (34) are arranged in a staggered manner.
9. The rotary boom pipe handling lift truck of claim 1 wherein: the chassis (1) comprises a frame, movable wheels, a detection structure and supporting legs, and the control system (6) is arranged on the frame.
10. The use of the rotary boom pipe handling lift truck of any one of claims 1 to 9 comprising the steps of:
s1, the device is in place: the vehicle frame is moved to a pipeline storage position through the matching of the control system (6) and the detection structure, and the position is adjusted, so that the working platform (3) is aligned to the pipeline;
s2, clamping the pipeline: controlling a power device I (43) to move, pushing a fixed rotating arm (41) to rotate forwards to a clamping state, manually clamping the pipeline clamp (51) on two sides of the upper wall of the pipeline, and controlling a power device III (52) to drive the pipeline clamp (51) to retract to clamp the pipeline;
s3, conveying the pipeline: adjusting the position of the roller assembly (34), corresponding to the pipeline and matching with the outer diameter of the pipeline, then controlling a first power device (43) to move to drive a fixed rotating arm (41) to rotate backwards, pulling the pipeline to hoist the pipeline, controlling a frame body (32) to move forwards to the lower part of the pipeline after the hoisted end part of the pipeline is higher than a working platform (3), continuing controlling the fixed rotating arm (41) to rotate backwards until the fixed rotating arm is reset, and contacting the middle part of the pipeline with the roller assembly (34) at the front end and gradually flatting the middle part of the pipeline on the roller assembly (34);
s4, the pipe is in place: after the fixed rotating arm (41) is reset, the telescopic boom (42) is controlled to extend out to drive the pipeline to translate backwards until the two ends of the pipeline are positioned on the roller assemblies (34), then the pipeline clamp (51) is controlled to loosen the pipeline, and meanwhile the frame body (32) is controlled to reset;
s5, installation and construction: manually opening the folding support (33) and placing the cross arm, controlling the vehicle body to move to the pipeline installation position, unfolding the supporting legs to support the vehicle frame, controlling the lifting mechanism (2) to be lifted to the operation height and locked, and then performing pipeline installation operation until the operation is completed.
CN202210800860.8A 2022-07-08 2022-07-08 Rotary boom type pipeline carrying lifting vehicle and using method thereof Pending CN115123963A (en)

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CN115771862A (en) * 2022-11-30 2023-03-10 中国化学工程第六建设有限公司 Construction process of clean pipeline of lithium battery anode factory building

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