CN117163118A - Construction method for installing tray cabinet by using special transportation trolley - Google Patents
Construction method for installing tray cabinet by using special transportation trolley Download PDFInfo
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- CN117163118A CN117163118A CN202311161927.9A CN202311161927A CN117163118A CN 117163118 A CN117163118 A CN 117163118A CN 202311161927 A CN202311161927 A CN 202311161927A CN 117163118 A CN117163118 A CN 117163118A
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- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 238000003825 pressing Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
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- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
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- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The invention discloses a construction method for installing a tray cabinet by using a special transportation trolley, which relates to the field of installation of electrical instrument panel cabinets in petrochemical engineering construction.
Description
Technical Field
The invention belongs to the field of installation of electrical instrument panel cabinets in petrochemical engineering construction, and particularly relates to a construction method for installing a panel cabinet by using a special transportation trolley.
Background
Along with the development of science and technology and the importance of environmental protection, many project of reconstruction, extension and maintenance types exist in petrochemical industry such as petrochemical industry, coal chemical industry and the like. Aiming at the projects, a plurality of electric instrument panel cabinets are often newly added to meet the use requirements of on-site newly added equipment.
The common cabinet is about 2.2 m in height, and the net height of the door is not less than 2.3 m during transportation. Under the conventional condition, the vertical transportation mode is adopted for transportation of the cabinet, when the net height of the door of the existing building cannot meet the vertical transportation requirement, the door is damaged and removed, and when the cabinet transportation work is completed, the cabinet is repaired and replaced, so that the cost is increased, the construction period is delayed, and most of cabinets on the device site in the petrochemical industry are of anti-riot wall structures, so that adverse effects are more prominent.
In addition, the lifting machinery is utilized to directly convert the tray cabinet from a vertical state to a horizontal or inclined state, the tray cabinet is horizontally or obliquely transported to the installation position, but the tray cabinet is kept in an upright state from a production processing operation and supporting construction site to the installation completion and the whole operation process, the direct dumping process and the dumping transportation process possibly influence deformation on the stress structure of the tray cabinet, the installation precision of the cabinet body and the matching precision of mechanical parts in the cabinet are influenced, and potential safety hazards are left for the operation of the tray cabinet. Generally, a cabinet manufacturer cannot allow the cabinet to be directly dumped and transported, and even some cabinets are also provided with anti-dumping labels, and if dumping records appear in the anti-dumping labels during equipment installation inspection, the anti-dumping labels cannot pass inspection and even bring economic losses.
Under the secondary condition, the invention discloses a construction method for lifting the special tray cabinet transportation trolley and the tray cabinet, which can properly solve the problems.
Disclosure of Invention
Aiming at the problem that the prior tray cabinet is inconvenient to transport when being installed in a room, the invention provides a construction method for installing the tray cabinet by utilizing a special transportation trolley.
The invention solves the technical problems by adopting the scheme that: the utility model provides a construction method of utilizing special travelling bogie installation dish cabinet, includes the travelling bogie, the travelling bogie includes automobile body and two B type handles, and many rails are installed to the tail end of automobile body, and A type handle is installed to its front end, and two sets of wheel carrier and two stabilizer blades are installed to the bottom of automobile body, installs the wheel on two sets of wheel carrier, and two B type handles set up in the front end of automobile body in tandem, and both sides are provided with adjustable interval's guardrail around the automobile body, are provided with ratchet euphroe and rope tying frame on the guardrail.
The construction method comprises the following steps:
s1, positioning a transportation trolley: pushing the A-shaped handle of the transport trolley upwards to erect the trolley, so that the guardrail at the tail of the trolley is flatly attached to the horizontal solid ground or a hoisting platform;
placing a plurality of hard square woods in the vertical direction of the tail guardrail, assisting a worker in keeping the state of the vehicle body stable on the side surface of the vehicle body, vertically standing the transportation trolley to finish the positioning work of the transportation trolley, and preparing for hoisting and placing a next-step tray cabinet in the transportation trolley;
s2, hoisting a disc cabinet: the tray cabinet is lifted from the transport truck into the body of the erected transport trolley by using the crane and a conventional rigging, and the rigging is kept in a slight stress state and is not removed;
s3, fixing a disc cabinet: the original state of the rigging is kept still, a flat rope is used, and a rope tying frame and a ratchet type rope tightener on the vehicle body are matched to firmly fix the cabinet and the transportation trolley;
s4, transporting the rotating body by using the transport trolley disc cabinet: the staff surrounds the car body for a circle, and the staff on one side of the car body lightly pushes the upper part of the tray cabinet towards the car bottom; the people on two sides of the guardrail can steady the dumped car body by resultant force, and when necessary, workers on two sides of the guardrail can use the B-shaped handles as assistance to slowly dump the car body towards the ground until wheels touch the ground, and at the moment, the car tail and the wheels touch the ground together to stabilize the car body, so that the turning process of the transport trolley is completed;
s5, transporting the tray cabinet: applying pressure downwards along the handle of the vehicle, adjusting the transportation trolley to a state that the supporting legs and wheels touch the ground together, taking down the crane rigging, pulling forwards and pushing backwards to transport the tray cabinet to an indoor installation position;
s6, turning the transportation trolley after reaching the destination: after the tray cabinet is transported indoors, the force is uniformly and slowly applied upwards along the A-shaped handle, and the A-shaped handle is lifted to a state that the tail and wheels are contacted with each other;
a plurality of hard square woods are placed on the ground at the tail part of the vehicle, and one ends of the square woods are closely attached to the bottom of the tray cabinet and vertically and uniformly distributed;
the staff surrounds the vehicle body for a circle, and the staff at the vehicle bottom side uniformly and slowly pushes upwards along the A-shaped handle towards one side of the vehicle body; when necessary, staff on two sides of the guardrail can use the B-shaped handles as assistance to slowly enable the vehicle body to topple towards the tail until the guardrail at the tail of the vehicle touches the ground, the bottom of the tray cabinet sits stably on a plurality of square timbers, and the transportation trolley is in an upright state;
s7, unloading the disc cabinet: and unwinding the flat belt rope of the fixed disc cabinet, taking out the transportation trolley, and smoothly completing the transportation task.
As a preferable technical scheme of the invention, in the step S2, attention is paid to the fact that the tray cabinet is placed in the body of the transportation trolley, the bottom of the tray cabinet is clung to the guardrail at the tail of the trolley and square timber arranged on the ground, the side panels of the tray cabinet are clung to the bottom of the trolley, the front door and the rear door of the tray cabinet face the guardrail of the transportation trolley, and when the front door and the rear door of the tray cabinet are provided with operation button panels, foam and felt cotton are adopted for protection.
As a preferred technical scheme of the invention, in the step S4, the process is instructed by a full-time crane worker, the rotating task of the transport trolley is completed under the instruction of the crane, and the crane lifting hook gradually and slowly drops down along with the rotating of the transport trolley according to the instruction of the crane;
the staff around the car body in the link plays a role of guiding assistance, and the crane hook is used as a main stressed carrier, so that the process is stable and labor-saving.
As a preferable technical scheme of the invention, the outer contour of the joint position of the guardrail and the vehicle body is subjected to arc chamfering.
As a preferable technical scheme of the invention, in the step S6, attention should be paid to disturbance to a plurality of square battens in the process of erecting the transportation trolley, and the positions of the square battens are timely swung, so that the uniform distribution of the positions of the square battens is ensured.
As a preferable technical scheme of the invention, the invention also comprises the following operation steps when the transportation trolley is in a floor with more than one floor in a height-limited operation position and the size of the door outer hoisting platform is not large, and the turning action of the trolley body can not be freely completed:
a1, sequentially performing steps S1, S2, S3 and S4 to finish the rotation of the transport trolley and the tray cabinet;
a2, applying pressure downwards along a handle of the vehicle to adjust the transportation trolley to a state that the supporting legs and wheels touch the ground together, and taking down the tray cabinet hoisting rigging;
a3, inserting the hoisting cross beam into the corresponding mounting hole, connecting the transportation trolley with the crane hook by using the clamping ring, four equilong suspenders and the equal-width balance beam of the vehicle body, and tying the vehicle body with the sliding rope to prepare before hoisting.
As a preferable technical scheme of the invention, the lifting method for lifting the awning above the door at the platform comprises the following steps:
b1, opening a guardrail of the hoisting platform, integrally hoisting the transportation trolley to a building room door at the hoisting platform under the command of a crane, guiding and adjusting the direction by utilizing a sliding rope to enable the transportation trolley to be moved towards the indoor position of the door, slowly moving the crane hook towards the direction of the building room door, and falling the transportation trolley to enable the wheels of the transportation trolley to be about 0.3 m away from the hoisting platform.
As a preferable technical scheme of the invention, the lifting method for the awning above the door at the lifting platform comprises the following steps:
c1, tying and hanging a hand hoist on a hanging beam close to a handle end of a car body, tying and hanging a sling on a hanging beam close to a guardrail end at the tail of the car body, and tying a sliding rope on the car body for preparation before hoisting;
c2, opening guardrails of the hoisting platform, integrally hoisting the transportation trolley to a building door opening at the hoisting platform under the command of a crane, guiding and adjusting the direction by using a sliding rope to enable the transportation trolley to face the indoor position of the door opening, slowly moving a crane hook to the direction of the building door, and dropping the transportation trolley to enable wheels of the transportation trolley to be about 0.3 m away from the hoisting platform;
the crane hook slowly approaches the door to enable the trolley handle to penetrate into the indoor direction in advance until the crane main hook steel wire rope is about 0.2 meter away from the edge of the awning;
setting an anchor point by utilizing the indoor ground or other firm devices, arranging a set of chain blocks in the room, tying the tail ends of the chain blocks at the root parts of two supporting legs of the transport trolley, stopping when the main hook steel wire rope of the crane is 0.1 meter away from the edge of the awning by tightening the chain blocks in the room, synchronously loosening 2 chain blocks close to the handle end of the trolley body while continuously tightening the chain blocks in the room, slowly moving the trolley body to the indoor direction along with the action, and continuously performing the operation on the 3 chain blocks until the wheels of the transport trolley can touch the ground of a hoisting platform;
and C4, taking down rigging and a cross beam when the transportation trolley is hoisted, and pulling the transportation trolley indoors.
As a preferable technical scheme of the invention, the vehicle body is formed by welding a plurality of transverse square steels and a plurality of longitudinal square steels.
As a preferable technical scheme of the invention, a plurality of connecting beams are welded at the bottom of the guardrail, the connecting beams are arranged in the longitudinal square steel, and the connecting beams can slide in the longitudinal square steel and can be fixed through bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the vertical hanging state of the cabinet is changed into the horizontal hanging state, so that the steps of dismantling and repairing the door and the wall are reduced, the original structure is protected from being damaged, the manpower is saved, the construction period is shortened, and the expenditure of the cost is reduced.
2. The invention utilizes the special transportation trolley to carry out multi-fixation and buffer protection of the cabinet body of the cabinet, converts the turning process of the cabinet into the turning process of the special transportation trolley, effectively protects the cabinet body structure of the cabinet, ensures the installation quality of the cabinet, and avoids the hidden quality trouble and economic loss caused by the traditional lifting method.
3. According to the invention, the vertical transportation posture is changed into the horizontal transportation posture by changing the posture of the tray cabinet in the lifting process by using the special transportation trolley, so that the gravity center of the tray cabinet is effectively reduced, the stability of the tray cabinet in the transportation process is effectively improved by using the vehicle body fastening system to be matched with the flat rope, and the sudden vehicle body overturning condition in the transportation process is effectively prevented by matching wheels and supporting legs.
4. The invention effectively reduces the occurrence probability of the falling and overturning events in the process of lifting the tray cabinet, effectively improves the safety of the tray cabinet in the process of lifting the tray cabinet, and ensures the safety of personnel and equipment more effectively.
5. The construction method for lifting the special tray cabinet by matching the tray cabinet conveying trolley is simple, common, economic and reasonable in required material equipment, simple, reasonable and easy to operate in step arrangement, strong in pertinence and convenient to implement aiming at the methods adopted by different working conditions, safe and controllable in construction method, reliable in quality, economical, reasonable, convenient and efficient.
Drawings
FIG. 1 is a schematic diagram of a transport cart in place;
FIG. 2 is a schematic view of a tray cabinet lifting;
FIG. 3 is a schematic view of a tray cabinet fixture;
FIG. 4 is a schematic view of a transport cart tray cabinet transport swivel;
FIG. 5 is a schematic diagram of a cabinet transport;
FIG. 6 is a schematic view of the swivel after the transport cart arrives at the destination;
FIG. 7 is a schematic view of a lifting platform with no canopy over a undersized door;
FIG. 8 is a schematic view of lifting a roof with a small size platform before changing the stress angle when a awning is arranged above the roof;
FIG. 9 is a schematic view of a lifting platform with a changed lifting force angle when a awning is arranged above a door with a small size;
FIG. 10 is an exploded view of a transport cart;
FIG. 11 is a front view of the transport cart;
fig. 12 is a right side view of the transport cart.
In the figure: 1 a transportation trolley, 11 a vehicle body, 12 rails, 131 a ratchet rope tightener, 132 a rope tying frame, 133 a guardrail, 134 a connecting beam, 141 wheels, 142 a wheel frame, 15 support legs, 16B type handles, 17A type handles, 2 square lumber, 3-disc cabinets, 4 slings, 5 flat ropes, 6 suspension arms, 7 hoisting platforms, 8 rain canopies and 9 chain blocks.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Referring to fig. 1-12, the invention provides a technical scheme of a construction method for installing a tray cabinet by using a special transportation trolley, which comprises the following steps:
embodiment one:
according to the fig. 10, 11 and 12, the transporting trolley 1 comprises a transporting trolley 1, the transporting trolley 1 comprises a trolley body 11 and two B-shaped handles 16, the length of the trolley body 11 is 1.8 m, the width of the trolley body is 0.8 m, the trolley body 11 is formed by welding a plurality of transverse square steel and a plurality of longitudinal square steel, three transverse square steel girders with the specification of 50 x 4 are arranged, 6 longitudinal square steel girders are uniformly distributed along the width direction of the trolley body 11, square steel secondary girders with the specification of 50 x 4 are uniformly distributed between the longitudinal square steel girders, and 4 angle steel is uniformly distributed between the longitudinal square steel girders, and the angle steel plane is upward.
Four rails 12 are arranged at the tail end of the vehicle body 11, the rails 12 are made of 50 x 4 square steel, an A-shaped handle 17 is arranged at the front end of the rail, the A-shaped handle is 1.4 m long, 40 x 4 square steel is adopted for manufacturing 1.2 m at the front end of the rail, DN32 galvanized steel pipes are adopted for manufacturing 0.2 m at the tail end of the rail, the joints of the square steel and the steel pipes are firmly welded and chamfered, phi 14 through holes are formed in the side surface of the square steel at intervals of 0.1 m in a length of 1 m, and an anti-slip sheath is arranged on the tail end steel pipe.
The bottom of the car body 11 is provided with two groups of wheel frames 142 and two supporting feet 15, the contact position of the lower ends of the supporting feet 15 and the ground is provided with an anti-slip triangle adjustable base, the total height of the supporting feet 15 is 0.05 meter below the horizontal distance of the wheels 141, the total height of the supporting feet 15 is 0.5 meter, the car body 11 can be stably parked in the short rest process in the transportation process, the situation that the car body is injured by touching the ground due to suddenly losing balance force in the horizontal transportation process can be prevented, the two groups of wheel frames 142 are provided with the wheels 141, the wheels 141 are heavy pneumatic tires with the outer diameter of 0.4 meter, the wheelbase is 0.8 meter, and the horizontal distance of the car bottom is 0.55 meter above the ground.
The two B-shaped handles 16 are arranged at the front end of the vehicle body 11 in tandem, the length of the B-shaped handles is 0.6 meter, the front end of each 0.4 meter is made of 40 x 4 square steel, the tail end of each 0.2 meter is made of DN32 galvanized steel pipes, the joints of the square steel and the steel pipes are firmly welded and chamfered, phi 14 through holes are formed in the side faces of each 0.1 meter at intervals of the square steel, and anti-slip sheaths are arranged on the tail end steel pipes.
The front side and the rear side of the car body 11 are provided with guardrails 133 with adjustable intervals, the length of each guardrail 133 is 1.8M, the height of each guardrail 133 is 0.3M, 4 vertical upright posts are arranged at uneven intervals from left to right, the vertical upright posts are arranged from the tail to the head, a right vertical upright post is used as a starting point to the left, a ratchet rope tightener 131, a rope tying frame 132, a ratchet rope tightener 131 and a rope tying frame 132 are sequentially welded below a cross rod of each guardrail 133 at intervals of 0.35M, a plurality of connecting beams 134 are welded at the bottom of each guardrail 133, each connecting beam 134 is arranged in longitudinal square steel, after the connecting beams are completely inserted into the longitudinal square steel, two penetrating holes at two ends of each longitudinal square steel are aligned with penetrating holes of each connecting beam 134 at the moment, each aligned penetrating hole is fastened by M12 x 70 bolts (or pins are adopted), the car body 11 and the guardrail 133 are connected to the left, the width of the car body 11 is 0.8M, the inserting depth of the fixing structure of each guardrail 133 can be uniformly adjusted at two sides when the car body 11 needs to be wider, but the connecting beams 134 are required to be always kept to be connected and fixed with the longitudinal square steel by two bolts, and the number of the longitudinal square steel is 0.4M, and the number of the holes can be adjusted to be 0.1.4.4M, and the number of the positions of the holes can be adjusted to be 1.4.4M.
The side steel and angle steel surfaces of the contact surfaces between the inner sides of the car body 11 and the guard rail 133 and the tray cabinet 3 are provided with a layer of thickened rubber anti-skid buffer cushion pad, the rubber anti-skid buffer pad can effectively prevent the surface coating of anti-skid buffer protection equipment from generating scratches, the rope tying frame 132 and the ratchet type rope tightener 131 are matched with a rope tying rope, the multiple fixed history transportation process is firm and stable, and the risk that the tray cabinet 3 slides and falls down during conventional transportation is solved.
The two adjustable handles of the A-type handle 17 and the B-type handle 16 are suitable for different hoisting operation platforms, the A-type handle is selected and installed in a sufficient space, and the B-type handle is selected and installed when the space of the hoisting operation platform is narrow.
When the transportation trolley 1 with the height-limited operation position being on the first floor or more than the first floor but the larger-sized hoisting platform 7 outside the door can freely finish turning actions of the trolley body, the construction method for installing the tray cabinet by using the special transportation trolley comprises the following steps:
s1, positioning a transport trolley 1: the trolley is erected by pushing the A-shaped handle 17 of the transportation trolley 1 upwards, so that the guardrail 133 at the tail part of the trolley is flatly attached to the horizontal solid ground or the hoisting platform 7;
two 50 x 50 hard square timber 2 with the length of about 1 meter are placed at 200mm intervals in the vertical direction of the tail guardrail 133, workers assist in keeping the state of the car body 11 stable on the side surface of the car body 11, as shown in fig. 1, the transport trolley 1 is vertically erected to complete the positioning work of the transport trolley 1, and the next step of hoisting the tray cabinet 3 is ready to be placed in the transport trolley 1.
S2, hoisting the disc cabinet 3: as shown in fig. 2, the tray 3 is lifted from the transport truck into the body 11 of the erected transport trolley 1 by using a crane with a conventional rigging, the rigging is kept in a slight stress state, the rigging is not removed, the tray 3 is placed in the body 11 of the transport trolley 1, care is needed when the bottom of the tray 3 is clung to the trolley tail guardrail 133 and the square timber 2 arranged on the ground, the side panels of the tray 3 are clung to the trolley bottom, the front door and the rear door of the tray 3 face the guardrail 133 of the transport trolley 1, when the front door and the rear door of the tray 3 are provided with operation button panels, foam and felt cotton are needed to be used for protection, the side panels of the tray 3 are clung to the trolley bottom because the side surfaces of the tray 3 are generally hollow frames or flat partition plates between the trays, and the side surfaces of the single-surface tray 3 are generally flat side panels, so that the stress weak positions of the cabinet are effectively avoided.
S3, fixing the disc cabinet 3: the original state of the rigging is kept still, the flat belt ropes 5 are used, the rope tying frame 132 and the ratchet rope tightener 131 on the vehicle body 11 are matched to firmly fix the cabinet 3 and the transportation trolley 1, the fixing purpose is to tightly attach the cabinet 3 and the transportation trolley 1 so as to transfer stress between the cabinet 3 and the transportation trolley and to prevent the cabinet 3 from sliding down in the transportation process, and the purpose of selecting four flat belt ropes 5 is to uniformly stress the contact surface, so that the state of the cabinet 3 after the fixing is finished is shown in the figure 3.
S4, transferring the swivel body by using the transport trolley 1 and the tray cabinet 3: as shown in fig. 4, the worker surrounds the vehicle body 11 for one circle, and the worker on one side of the vehicle body 11 lightly pushes the upper part of the tray cabinet 3 toward the vehicle bottom; when necessary, workers on two sides of the guard rail 133 can use the B-shaped handles 16 as an aid to slowly tilt the body 11 towards the ground until the wheels 141 touch the ground, and at the moment, the tail and the wheels 141 touch the body 11 together to be stable, so that the turning process of the transport trolley 1 is completed;
the process is commanded by full-time crane workers, the rotating task of the transport trolley 1 is completed under the command of the crane, and the crane lifting hook gradually and slowly falls down along with the rotating of the transport trolley 1 according to the crane command.
The staff around the car body 11 in the link plays a role of guiding assistance, the crane hook is used as a main stressed carrier, and in order to ensure the process to be smooth and labor-saving, the outer contour of the joint position of the tail guardrail 133 of the transport trolley 1 and the car body 11 is specially subjected to arc chamfering.
S5, transporting the tray cabinet 3: as shown in fig. 5, pressure is applied downwards along the vehicle handle, the transportation trolley 1 is adjusted to a state that the supporting legs and the wheels 141 touch the ground together, the crane rigging is taken down, the tray cabinet 3 is transported to the indoor installation position by pulling forwards and pushing backwards, attention is paid to the transportation, and the type-a handle 17 or the type-B handle 16 can be selected according to the size of the platform and the indoor space.
S6, turning the transport trolley 1 after reaching the destination: after the tray 3 is transported indoors, the force is uniformly and slowly applied upwards along the A-shaped handle 17, and the A-shaped handle 17 is lifted to a state that the tail and the wheels 141 are contacted with each other;
four 50 x 50 hard square timber 2 are placed on the ground at the tail of the vehicle, and one end of each square timber 2 is closely attached to the bottom of the disc cabinet 3 and vertically and uniformly distributed;
the staff surrounds the vehicle body 11 for a circle, and the staff at the vehicle bottom side uniformly and slowly pushes upwards along the A-shaped handle 17 towards the vehicle body 11 side; when necessary, staff on two sides of the guard rail 133 can use the B-shaped handles 17 as an aid to slowly tilt the vehicle body 11 towards the tail until the tail guard rail 133 touches the ground, the bottom of the tray cabinet 3 sits stably on the square timbers 2, and the transportation trolley 1 is in an upright state;
in the process of turning up the trolley, the lever principle and the arc chamfer below the tail of the trolley are fully utilized to reduce resistance, and the stable and labor-saving turning process is ensured.
In the link, attention should be paid to disturbance of the four square timber bars 2 in the process of lifting the transportation trolley 1, and the positions of the square timber bars 2 are adjusted in time, so that the position distribution of the square timber bars 2 is ensured to be uniformly dispersed.
The turning process of the transport trolley 1 after the destination is carried is shown in fig. 6.
S7, unloading the disc cabinet 3: the flat belt ropes 5 of the fixed tray cabinets 3 are loosened, the transport trolley 1 is taken out, the transport task is smoothly completed, when the trolley is taken out, according to different methods of indoor installation of the tray cabinets 3, corresponding special tools are adopted for unloading, if the tray cabinets 3 are not installed temporarily, the tray cabinets 3 can be slightly lifted by a portal frame to leave 1 cm from a wood, and then the transport trolley 1 is taken out, and the tray cabinets 3 are firmly put.
Embodiment two:
the construction method for installing a tray cabinet by using the special transportation trolley when the transportation trolley 1 cannot freely complete turning actions of the trolley body and the awning 8 is not arranged above a door at the position of the lifting platform 7, wherein the height-limited operation position is at a floor above one floor and the size of the outdoor lifting platform 7 is not large, comprises the following steps:
a1, positioning a transport trolley 1: the trolley is erected by pushing the A-shaped handle 17 of the transportation trolley 1 upwards, so that the guardrail 133 at the tail part of the trolley is flatly attached to the horizontal solid ground or the hoisting platform 7;
two 50 x 50 hard square timber 2 with the length of about 1 meter are placed at 200mm intervals in the vertical direction of the tail guardrail 133, workers assist in keeping the state of the car body 11 stable on the side surface of the car body 11, as shown in fig. 1, the transport trolley 1 is vertically erected to complete the positioning work of the transport trolley 1, and the next step of hoisting the tray cabinet 3 is ready to be placed in the transport trolley 1.
A2, hoisting the disc cabinet 3: as shown in fig. 2, the tray 3 is lifted from the transport truck into the body 11 of the erected transport trolley 1 by using a crane with a conventional rigging, the rigging is kept in a slight stress state, the rigging is not removed, the tray 3 is placed in the body 11 of the transport trolley 1, care is needed when the bottom of the tray 3 is clung to the trolley tail guardrail 133 and the square timber 2 arranged on the ground, the side panels of the tray 3 are clung to the trolley bottom, the front door and the rear door of the tray 3 face the guardrail 133 of the transport trolley 1, when the front door and the rear door of the tray 3 are provided with operation button panels, foam and felt cotton are needed to be used for protection, the side panels of the tray 3 are clung to the trolley bottom because the side surfaces of the tray 3 are generally hollow frames or flat partition plates between the trays, and the side surfaces of the single-surface tray 3 are generally flat side panels, so that the stress weak positions of the cabinet are effectively avoided.
A3, fixing the disc cabinet 3: the original state of the rigging is kept still, the flat belt ropes 5 are used, the rope tying frame 132 and the ratchet rope tightener 131 on the vehicle body 11 are matched to firmly fix the cabinet 3 and the transportation trolley 1, the fixing purpose is to tightly attach the cabinet 3 and the transportation trolley 1 so as to transfer stress between the cabinet 3 and the transportation trolley and to prevent the cabinet 3 from sliding down in the transportation process, and the purpose of selecting four flat belt ropes 5 is to uniformly stress the contact surface, so that the state of the cabinet 3 after the fixing is finished is shown in the figure 3.
A4, transferring and rotating bodies of the transport trolley 1 and the tray cabinet 3: as shown in fig. 4, the worker surrounds the vehicle body 11 for one circle, and the worker on one side of the vehicle body 11 lightly pushes the upper part of the tray cabinet 3 toward the vehicle bottom; the people on two sides of the guard rail 133 can steady the dumped car body 11 by resultant force, if necessary, the staff on two sides of the guard rail 133 can use the B-shaped handle 16 as an aid, slowly dump the car body 11 towards the ground until the wheels 141 touch the ground, and at the moment, the car tail and the wheels 141 touch the ground together to stabilize the car body 11, so that the turning process of the transport trolley 1 is completed.
A5, applying pressure downwards along the vehicle handle to adjust the transportation trolley 1 to a state that the supporting legs and the wheels 141 touch the ground together, and taking down the cabinet 3 to hoist the rigging.
A6, inserting the hoisting cross beam into the corresponding mounting hole, connecting the transportation trolley 1 with a crane hook by using a clamping ring, four equilong suspenders and a vehicle body equal-width balance beam, and tying the vehicle body 11 with a sliding rope to prepare before hoisting.
A7, opening the guardrail 133 of the hoisting platform 7, lifting the whole transportation trolley 1 to a building door opening at the hoisting platform 7 under the command of a crane, guiding and adjusting the direction by utilizing a slide rope to enable the handle of the transportation trolley 1 to face the indoor position of the door opening, slowly moving the crane hook towards the direction of the building door, and dropping the transportation trolley 1 to enable the wheels 141 of the transportation trolley 1 to be about 0.3 m away from the hoisting platform 7.
A8, slowly approaching the door to the crane hook to enable the handle bar part of the trolley to go deep indoors in advance until the tail part of the transportation trolley 1 is completely positioned in the hoisting platform 7, and falling the crane hook to enable the transportation trolley 1 to fall on the ground of the hoisting platform 7.
A9, removing the rigging and the hoisting beam, and pulling the transportation trolley 1 indoors, wherein the hoisting schematic is shown in figure 7.
Embodiment III:
the construction method for installing a tray cabinet by using the special transportation trolley when the awning 8 is arranged above a door at the position of the lifting platform 7, wherein the height-limited operation position is at a floor above one floor and the size of the door outer lifting platform 7 is not large, and the transportation trolley 1 cannot freely complete turning actions of a vehicle body comprises the following steps:
c1, positioning a transport trolley 1: the trolley is erected by pushing the A-shaped handle of the transportation trolley 1 upwards, so that the guardrail 133 at the tail part of the trolley is flatly attached to the horizontal solid ground or the hoisting platform 7;
two 50 x 50 hard square timber 2 with the length of about 1 meter are placed at 200mm intervals in the vertical direction of the tail guardrail 133, workers assist in keeping the state of the car body 11 stable on the side surface of the car body 11, as shown in fig. 1, the transport trolley 1 is vertically erected to complete the positioning work of the transport trolley 1, and the next step of hoisting the tray cabinet 3 is ready to be placed in the transport trolley 1.
C2, hoisting the disc cabinet 3: as shown in fig. 2, the tray 3 is lifted from the transport truck into the body 11 of the erected transport trolley 1 by using a crane with a conventional rigging, the rigging is kept in a slight stress state, the rigging is not removed, the tray 3 is placed in the body 11 of the transport trolley 1, care is needed when the bottom of the tray 3 is clung to the trolley tail guardrail 133 and the square timber 2 arranged on the ground, the side panels of the tray 3 are clung to the trolley bottom, the front door and the rear door of the tray 3 face the guardrail 133 of the transport trolley 1, when the front door and the rear door of the tray 3 are provided with operation button panels, foam and felt cotton are needed to be used for protection, the side panels of the tray 3 are clung to the trolley bottom because the side surfaces of the tray 3 are generally hollow frames or flat partition plates between the trays, and the side surfaces of the single-surface tray 3 are generally flat side panels, so that the stress weak positions of the cabinet are effectively avoided.
C3, fixing the tray cabinet 3: the original state of the rigging is kept still, the flat belt ropes 5 are used, the rope tying frame 132 and the ratchet rope tightener 131 on the vehicle body 11 are matched to firmly fix the cabinet 3 and the transportation trolley 1, the fixing purpose is to tightly attach the cabinet 3 and the transportation trolley 1 so as to transfer stress between the cabinet 3 and the transportation trolley and to prevent the cabinet 3 from sliding down in the transportation process, and the purpose of selecting four flat belt ropes 5 is to uniformly stress the contact surface, so that the state of the cabinet 3 after the fixing is finished is shown in the figure 3.
C4, transferring swivel of the transport trolley 1 and the tray cabinet 3: as shown in fig. 4, the worker surrounds the vehicle body 11 for one circle, and the worker on one side of the vehicle body 11 lightly pushes the upper part of the tray cabinet 3 toward the vehicle bottom; the people on two sides of the guard rail 133 can steady the dumped car body 11 by resultant force, if necessary, the staff on two sides of the guard rail 133 can use the B-shaped handle 16 as an aid, slowly dump the car body 11 towards the ground until the wheels 141 touch the ground, and at the moment, the car tail and the wheels 141 touch the ground together to stabilize the car body 11, so that the turning process of the transport trolley 1 is completed.
And C5, applying pressure downwards along the vehicle handle to adjust the transportation trolley 1 to a state that the support legs and the wheels 141 touch the ground together, and taking down the cabinet 3 to hoist the rigging.
And C6, inserting the hoisting cross beam into a corresponding mounting hole, connecting the transportation trolley 1 with a crane hook by using a clamping ring, four equilong suspenders and a vehicle body equal-width balance beam, and tying a sliding rope on the vehicle body 11 to prepare before hoisting.
The hand hoist 9 is tied and hung on a hanging beam close to the handle end of the car body 11, the hanging belt is tied and hung on a hanging beam close to the end 133 of the guardrail at the tail of the car body 11, and the car body 11 is tied with a sliding rope for preparation before hoisting;
c7, opening a guardrail 133 of the hoisting platform 7, lifting and moving the whole transportation trolley 1 to a building room door at the hoisting platform 7 under the command of a crane, guiding and adjusting the direction by utilizing a slide rope to enable a handle of the transportation trolley 1 to face to the indoor position of the door, slowly moving a crane hook to the direction of the building room door, and dropping the transportation trolley 1 to enable wheels 141 of the transportation trolley 1 to be about 0.3 m away from the hoisting platform 7;
the crane hook slowly approaches the door to enable the trolley handle to penetrate into the indoor direction in advance until the crane main hook steel wire rope is about 0.2 meter away from the edge of the awning.
C8, setting an anchor point by utilizing the indoor ground or other firm devices, setting a set of chain blocks 9 in the room, tying the tail ends of the chain blocks 9 on the root parts of two supporting legs of the transport trolley 1, stopping when the main hook steel wire rope of the crane is 0.1 meter away from the edge of the awning by tightening the chain blocks 9 in the room, synchronously loosening 2 chain blocks 9 close to the handle end of the vehicle body 11 while continuously tightening the chain blocks 9 in the room, slowly moving the vehicle body 11 to the indoor direction along with the action, and continuously performing the operation on the 3 chain blocks 9 until the wheels 141 of the transport trolley 1 can touch the ground of the lifting platform 7, and dropping the lifting hook;
and C9, taking down rigging and a cross beam when the transportation trolley 1 is hoisted, and pulling the transportation trolley 1 indoors, wherein the hoisting schematic of the step is shown in the figures 8 and 9.
The step C7-C9 is mainly characterized in that the two fixed-length hanging strips are matched with the three chain blocks 9, the stress angle of a hoisting system of the car body 11 is changed through the loosening action of the two chain blocks 9 of the car body 11, so that the center of gravity of the transportation trolley 1 is transferred to the tail hanging strip end, and meanwhile, the chain blocks 9 which are mainly responsible for traction in a room are synchronously tensioned, and the displacement of the car body 11 caused by the change of the stress angle of the hoisting system is guided to be carried out in the indoor direction. Through the steps, the sling and the crane wire rope are finally in a straight line to form an included angle of 90 degrees together with the vehicle body 11, the whole vehicle body 11 also gradually enters the room, and the wheels 141 can smoothly fall on the hoisting platform 7.
Claims (10)
1. A construction method for installing a tray cabinet by using a special transportation trolley is characterized by comprising the following steps of: the trolley comprises a trolley body and two B-shaped handles, wherein the tail end of the trolley body is provided with a plurality of rails, the front end of the trolley body is provided with an A-shaped handle, the bottom of the trolley body is provided with two groups of wheel frames and two supporting legs, the two groups of wheel frames are provided with wheels, the two B-shaped handles are arranged at the front end of the trolley body in a front-back manner, the front side and the rear side of the trolley body are provided with guardrails with adjustable intervals, and the guardrails are provided with ratchet rope tighteners and rope tying frames;
the construction method comprises the following steps:
s1, positioning a transportation trolley: pushing the A-shaped handle of the transport trolley upwards to erect the trolley, so that the guardrail at the tail of the trolley is flatly attached to the horizontal solid ground or a hoisting platform;
placing a plurality of hard square woods in the vertical direction of the tail guardrail, assisting a worker in keeping the state of the vehicle body stable on the side surface of the vehicle body, vertically standing the transportation trolley to finish the positioning work of the transportation trolley, and preparing for hoisting and placing a next-step tray cabinet in the transportation trolley;
s2, hoisting a disc cabinet: the tray cabinet is lifted from the transport truck into the body of the erected transport trolley by using the crane and a conventional rigging, and the rigging is kept in a slight stress state and is not removed;
s3, fixing a disc cabinet: the original state of the rigging is kept still, a flat rope is used, and a rope tying frame and a ratchet type rope tightener on the vehicle body are matched to firmly fix the cabinet and the transportation trolley;
s4, transporting the rotating body by using the transport trolley disc cabinet: the staff surrounds the car body for a circle, and the staff on one side of the car body lightly pushes the upper part of the tray cabinet towards the car bottom; the people on two sides of the guardrail can steady the dumped car body by resultant force, and when necessary, workers on two sides of the guardrail can use the B-shaped handles as assistance to slowly dump the car body towards the ground until wheels touch the ground, and at the moment, the car tail and the wheels touch the ground together to stabilize the car body, so that the turning process of the transport trolley is completed;
s5, transporting the tray cabinet: applying pressure downwards along the handle of the vehicle, adjusting the transportation trolley to a state that the supporting legs and wheels touch the ground together, taking down the crane rigging, pulling forwards and pushing backwards to transport the tray cabinet to an indoor installation position;
s6, turning the transportation trolley after reaching the destination: after the tray cabinet is transported indoors, the force is uniformly and slowly applied upwards along the A-shaped handle, and the A-shaped handle is lifted to a state that the tail and wheels are contacted with each other;
a plurality of hard square woods are placed on the ground at the tail part of the vehicle, and one ends of the square woods are closely attached to the bottom of the tray cabinet and vertically and uniformly distributed;
the staff surrounds the vehicle body for a circle, and the staff at the vehicle bottom side uniformly and slowly pushes upwards along the A-shaped handle towards one side of the vehicle body; when necessary, staff on two sides of the guardrail can use the B-shaped handles as assistance to slowly enable the vehicle body to topple towards the tail until the guardrail at the tail of the vehicle touches the ground, the bottom of the tray cabinet sits stably on a plurality of square timbers, and the transportation trolley is in an upright state;
s7, unloading the disc cabinet: and unwinding the flat belt rope of the fixed disc cabinet, taking out the transportation trolley, and smoothly completing the transportation task.
2. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 1, wherein: in the step S2, attention is paid to the fact that the tray cabinet is placed in the body of the transportation trolley, the bottom of the tray cabinet is clung to square timber arranged on the guardrail at the tail of the trolley and the ground, the side panels of the tray cabinet are clung to the bottom of the trolley, the front door and the rear door of the tray cabinet face the guardrail of the transportation trolley, and when the front door and the rear door of the tray cabinet are provided with operation button panels, foam and felt cotton are needed to be used for protection.
3. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 1, wherein: in the step S4, the process is instructed by a full-time crane worker, the rotating task of the transport trolley is completed under the instruction of the crane, and the crane lifting hook gradually and slowly drops down along with the rotating of the transport trolley according to the instruction of the crane;
the staff around the car body in the link plays a role of guiding assistance, and the crane hook is used as a main stressed carrier, so that the process is stable and labor-saving.
4. A construction method for installing a tray cabinet by using a special transportation trolley according to claim 3, wherein: and the outer contour of the joint position of the guardrail and the vehicle body is subjected to arc chamfering.
5. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 1, wherein: in the step S6, attention should be paid to disturbance to a plurality of square battens in the process of erecting the transportation trolley, and the positions of the square battens are timely arranged, so that the uniform distribution of the position distribution of the square battens is ensured.
6. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 1, wherein: the method also comprises the following operation steps when the transportation trolley cannot freely complete turning action of the body when the height-limited operation position is at a floor above one floor and the size of the door outer hoisting platform is not large:
a1, sequentially performing steps S1, S2, S3 and S4 to finish the rotation of the transport trolley and the tray cabinet;
a2, applying pressure downwards along a handle of the vehicle to adjust the transportation trolley to a state that the supporting legs and wheels touch the ground together, and taking down the tray cabinet hoisting rigging;
a3, inserting the hoisting cross beam into the corresponding mounting hole, connecting the transportation trolley with the crane hook by using the clamping ring, four equilong suspenders and the equal-width balance beam of the vehicle body, and tying the vehicle body with the sliding rope to prepare before hoisting.
7. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 6, wherein: the lifting method for lifting the awning above the door at the platform comprises the following steps:
b1, opening a guardrail of a hoisting platform, hoisting the whole transportation trolley to a building room door at the hoisting platform under the command of a crane, guiding and adjusting the direction by utilizing a sliding rope to enable the transportation trolley to face the indoor position of the door, slowly moving a crane hook to the direction of the building room door, and dropping the transportation trolley to enable the wheel of the transportation trolley to be about 0.3 m away from the hoisting platform;
b2, slowly approaching a door to a crane lifting hook to enable a handlebar part of the trolley to go deep indoors in advance until the tail part of the transportation trolley is completely positioned in the hoisting platform, and falling down the lifting hook to enable the transportation trolley to fall on the ground of the hoisting platform;
and B3, picking up rigging and hoisting the cross beam, and pulling the transportation trolley indoors.
8. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 6, wherein: the lifting method for the awning above the door at the lifting platform comprises the following steps:
c1, tying and hanging a hand hoist on a hanging beam close to a handle end of a car body, tying and hanging a sling on a hanging beam close to a guardrail end at the tail of the car body, and tying a sliding rope on the car body for preparation before hoisting;
c2, opening guardrails of the hoisting platform, integrally hoisting the transportation trolley to a building door opening at the hoisting platform under the command of a crane, guiding and adjusting the direction by using a sliding rope to enable the transportation trolley to face the indoor position of the door opening, slowly moving a crane hook to the direction of the building door, and dropping the transportation trolley to enable wheels of the transportation trolley to be about 0.3 m away from the hoisting platform;
the crane hook slowly approaches the door to enable the trolley handle to penetrate into the indoor direction in advance until the crane main hook steel wire rope is about 0.2 meter away from the edge of the awning;
setting an anchor point by utilizing the indoor ground or other firm devices, arranging a set of chain blocks in the room, tying the tail ends of the chain blocks at the root parts of two supporting legs of the transport trolley, stopping when the main hook steel wire rope of the crane is 0.1 meter away from the edge of the awning by tightening the chain blocks in the room, synchronously loosening 2 chain blocks close to the handle end of the trolley body while continuously tightening the chain blocks in the room, slowly moving the trolley body to the indoor direction along with the action, and continuously performing the operation on the 3 chain blocks until the wheels of the transport trolley can touch the ground of a hoisting platform;
and C4, taking down rigging and a cross beam when the transportation trolley is hoisted, and pulling the transportation trolley indoors.
9. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 1, wherein: the vehicle body is formed by welding a plurality of transverse square steels and a plurality of longitudinal square steels.
10. The construction method for installing a tray cabinet by using a special transportation trolley according to claim 9, wherein: the bottom of guardrail welds has many tie-beams, and the tie-beam setting is in vertical square steel, and the tie-beam can slide in vertical square steel and can pass through the bolt fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311161927.9A CN117163118A (en) | 2023-09-11 | 2023-09-11 | Construction method for installing tray cabinet by using special transportation trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311161927.9A CN117163118A (en) | 2023-09-11 | 2023-09-11 | Construction method for installing tray cabinet by using special transportation trolley |
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| Publication Number | Publication Date |
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| CN117163118A true CN117163118A (en) | 2023-12-05 |
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| CN202311161927.9A Pending CN117163118A (en) | 2023-09-11 | 2023-09-11 | Construction method for installing tray cabinet by using special transportation trolley |
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| Country | Link |
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| CN (1) | CN117163118A (en) |
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