CN114275700A - Hoisting device and hoisting method for double trolleys on beam - Google Patents

Hoisting device and hoisting method for double trolleys on beam Download PDF

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Publication number
CN114275700A
CN114275700A CN202111613093.1A CN202111613093A CN114275700A CN 114275700 A CN114275700 A CN 114275700A CN 202111613093 A CN202111613093 A CN 202111613093A CN 114275700 A CN114275700 A CN 114275700A
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China
Prior art keywords
hoisting
precast
trolley
trolleys
hoist
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CN202111613093.1A
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Chinese (zh)
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姜小强
夏建坤
赵培
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Shanghai Mechanized Construction Group Co Ltd
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Shanghai Mechanized Construction Group Co Ltd
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Priority to CN202111613093.1A priority Critical patent/CN114275700A/en
Publication of CN114275700A publication Critical patent/CN114275700A/en
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Abstract

The invention relates to the technical field of construction engineering construction, in particular to a hoisting device of double trolleys on a beam and a hoisting method thereof, which are used for hoisting and transporting a precast slab positioned at the initial position of the precast beam to the operation position of the precast beam, wherein the hoisting device of the double trolleys on the beam comprises two guide rail mechanisms and two driving mechanisms which are respectively arranged on the two precast beams, a moving mechanism and a hoisting mechanism, the moving mechanism comprises two conveying trolleys, the two conveying trolleys are respectively arranged on the two guide rail mechanisms in a sliding manner along a first direction, and the first direction is the length direction of the precast beam; each conveying trolley is provided with a hoisting mechanism, and the hoisting mechanism is configured to hoist the precast slabs; the two driving mechanisms are configured to respectively drive the two transport carriages to reciprocate along a first direction. When the hoisting and transporting device for the double trolleys on the beam is used, the operation is simple, the stability is good, the controllability is strong, and the precision of hoisting the precast slab is improved.

Description

Hoisting device and hoisting method for double trolleys on beam
Technical Field
The invention relates to the technical field of constructional engineering construction, in particular to a hoisting device and a hoisting method for double trolleys on a beam.
Background
In the construction of building engineering, the prefabricated components are often required to be hoisted in a large-scale hoisting area, and specifically, the hoisting of the prefabricated column heads, the prefabricated beams and the prefabricated plates is performed in sequence. However, in the prior art, a crane is generally adopted, for example, a truck crane, a crawler crane, a tower crane and other large-scale hoisting machinery are adopted, but such equipment can only be arranged on the periphery for hoisting, and is suitable for hoisting prefabricated components in the peripheral hoisting area, and not only is it difficult to hoist prefabricated components like prefabricated slabs in the middle hoisting area, so that hoisting construction is limited, hoisting precision is low, operability is poor, operation steps are complicated, and a large amount of manpower assistance is required to be consumed, thereby affecting construction efficiency.
Disclosure of Invention
The invention aims to provide a hoisting device of double trolleys on a beam and a hoisting method thereof, which can be suitable for hoisting heavy components in a large-range hoisting area, are simple to operate, have good stability and strong adjustability, and are used for improving the hoisting operation precision.
In order to realize the purpose, the following technical scheme is provided:
the utility model provides a hoist device of two dollies on roof beam, arranges on two precast beams that the interval set up for with being located precast slab hoist and mount transportation of precast beam initial position department to the operation position of precast beam, include:
the two guide rail mechanisms are respectively arranged on the two precast beams;
the moving mechanism comprises two conveying trolleys, the two conveying trolleys are respectively arranged on the two guide rail mechanisms in a sliding mode along a first direction, and the first direction is the length direction of the precast beam;
each conveying trolley is provided with one hoisting mechanism, and each hoisting mechanism is configured to hoist the precast slab;
the two driving mechanisms are respectively arranged on the two precast beams and are configured to respectively drive the two conveying trolleys to reciprocate along the first direction.
Furthermore, the guide rail mechanism comprises a plurality of guide rails which are parallel to each other and arranged at intervals, the guide rails extend along a first direction, a plurality of groups of rollers are arranged on the conveying trolley at intervals, each group of rollers are arranged at intervals along the first direction, and the rollers are arranged on the guide rails in a one-to-one correspondence manner.
Furthermore, the conveying trolley comprises a base arranged on the guide rail mechanism in a sliding mode and a supporting frame arranged on the base, a containing cavity used for containing the hoisting mechanism is arranged on the supporting frame, the hoisting mechanism is arranged on the supporting frame and extends out of the containing cavity to be detachably connected with the precast slab.
Furthermore, the base comprises a first supporting piece and two second supporting pieces arranged at two ends of the first supporting piece respectively, the second supporting piece and the first supporting piece are arranged at an included angle, two ends, deviating from the first supporting piece, of the second supporting pieces are respectively provided with a limiting part, the limiting parts are located on one side, facing the precast slab, of the first supporting piece, the two limiting parts are arranged at intervals in the first direction, and a limiting groove used for containing the hoisting mechanism is formed between the two limiting parts.
Further, the support frame include along the circumference interval that holds the chamber set up in a plurality of vertical stand on the base with set up in a plurality of vertical stand deviates from the top bearing structure of base one end, hoisting machine constructs set up in on the top bearing structure.
Furthermore, the driving mechanism on each precast beam comprises two winches which are respectively arranged on two sides of the guide rail mechanism along the first direction, two ends of the conveying trolley are respectively connected to output ends of the two winches, one winch is used for driving the conveying trolley to move towards the initial position of the precast beam along the first direction, and the other winch is used for driving the conveying trolley to move towards the operating position of the precast beam along the first direction.
Furthermore, hoisting mechanism including fixed set up in electric block on the transport trolley with detachably connect in the hoist of electric block, the hoist stretches out transport trolley detachably connect in the prefabricated plate.
Furthermore, the lifting appliance comprises a fixing frame, lifting lugs and a plurality of hinge pins, the hinge pins are arranged on one side of the fixing frame at intervals, each hinge pin is detachably arranged in a hoisting hole in the prefabricated slab in a penetrating mode, and the lifting lugs are arranged on one side, deviating from the hinge pins, of the fixing frame and are detachably connected to the electric hoist.
Further, a hoisting method of the double trolley on the beam is provided, the hoisting device of the double trolley on the beam is used for hoisting and transporting the precast slab at the initial position of the precast beam to the operation position of the precast beam, and the hoisting method comprises the following steps:
step 1, assembling and preparing: a guide rail mechanism, a driving mechanism, a conveying trolley and a hoisting mechanism are sequentially arranged on the two precast beams respectively;
step 2, positioning before hoisting: operating the two driving mechanisms to drive the two conveying trolleys to respectively move to the initial positions of the precast beams;
step 3, hoisting: operating the two hoisting mechanisms to hoist the precast slabs located at the initial positions of the precast beams to hoisting height positions away from the precast beams;
step 4, a transportation stage: operating the two driving mechanisms to synchronously move the two conveying trolleys to the operation position on the precast beam;
step 5, lowering and adjusting: operating the two hoisting mechanisms to lower the precast slabs, and operating the two driving mechanisms to adjust the precast slabs in the process of lowering the precast slabs until the precast slabs are accurately lowered to the operation position on the precast beam;
step 6, resetting: and operating the two driving mechanisms to reset the two conveying trolleys to the initial positions of the precast beams, and hoisting and transporting the next precast slab.
Further, in step 3, the hoisting stage: the steps of operating the two hoisting mechanisms to hoist the precast slab located at the initial position of the precast beam to a hoisting height position away from the precast beam are as follows:
step 3.1, connecting the two hoisting mechanisms with two ends of the precast slab at the initial position on the precast beam respectively;
and 3.2, simultaneously operating the two hoisting mechanisms to hoist the precast slab to a hoisting height position away from the precast beam.
The invention has the beneficial effects that:
according to the hoisting and transporting device for the double trolleys on the beam, disclosed by the invention, the guide rail mechanisms, the transporting trolleys and the driving mechanisms are respectively arranged on the two precast beams, and the hoisting mechanism is arranged on each transporting trolley, so that the precast slabs positioned at the initial positions on the precast beams are hoisted and transported to the operation positions of the precast beams. Specifically, the conveying trolleys on the two precast beams are respectively driven by the two driving mechanisms to reciprocate on the guide rail mechanism along the first direction, so that the conveying trolleys can run between the initial position and the operation position on the precast beams, the positions of the two conveying trolleys are convenient to adjust under the driving of the two driving mechanisms, synchronous sliding is kept, and the hoisting operation precision is improved. Under hoisting machine constructs and actuating mechanism cooperation, can transfer the precast slab to precast beam operation position's in-process, adjust and transfer the precision, guarantee that the precast slab accurately transfers to the operation position. The hoisting and transporting device with the double trolleys on the beam can be used for hoisting and transporting prefabricated parts in the middle hoisting area of construction, is simple to operate, good in stability, wide in application range, beneficial to improvement of construction efficiency, strong in adjustability and beneficial to improvement of hoisting precision.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hoisting device for double trolleys on a beam according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conveying trolley of the hoisting device for double trolleys on a beam provided by the embodiment of the invention;
fig. 3 is a schematic structural diagram of a spreader of the hoisting device for double trolleys on a beam according to the embodiment of the invention.
In the figure:
100-precast beam; 200-precast slab;
1-a guide rail;
2-conveying the trolley; 21-a roller; 22-a base; 221-a first support; 222-a second support; 223-a limiting part; 23-a support frame; 231-vertical posts; 232-a first top support bar; 233-a second top support bar; 24-hanging a lug; 25-a fixing member;
31-an electric hoist; 311-a chain; 312-hook; 32-a spreader; 321-a fixing frame; 3211-a connecting rod; 3212-a first connection plate; 3213-a second connecting plate; 322-lifting lugs; 323-pin roll;
4-a winch; 41-hauling the rope.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when the product is used, and are only for convenience of description of the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, the hoisting device for double trolleys on a beam, provided by the embodiment of the present invention, is arranged on two precast beams 100 arranged at an interval, and is configured to hoist and transport a precast slab 200 located at an initial position of the precast beam 100 to an operation position of the precast beam 100, and the hoisting device for double trolleys on a beam includes two guide rail mechanisms and two driving mechanisms, as well as a moving mechanism and a hoisting mechanism, which are respectively arranged on the two precast beams 100. The moving mechanism comprises two conveying trolleys 2, the two conveying trolleys 2 are respectively arranged on the two guide rail mechanisms in a sliding mode along a first direction, and the first direction is the length direction of the precast beam 100; each conveying trolley 2 is provided with a hoisting mechanism which is configured to hoist the prefabricated slab 200; the two drive mechanisms are configured to drive the two transport carriages 2 to reciprocate in a first direction, respectively, as indicated by an arrow ab shown in fig. 1.
In the hoisting device for the double trolleys on the beam, the guide rail mechanisms, the conveying trolleys 2 and the driving mechanisms are respectively arranged on the two precast beams 100, and each conveying trolley 2 is provided with the hoisting mechanism to hoist and transport the precast slabs 200 positioned at the initial positions of the precast beams 100 to the operation positions of the precast beams 100. Specifically, the two driving mechanisms respectively drive the conveying trolleys 2 on the two precast beams 100 to reciprocate on the guide rail mechanism along the first direction, so that the conveying trolleys 2 can run between the initial position and the operation position of the precast beams 100, the positions of the two conveying trolleys 2 are convenient to adjust under the driving of the two driving mechanisms, synchronous sliding is kept, and the hoisting operation precision is improved. Under the matching of the hoisting mechanism and the driving mechanism, the lowering precision can be adjusted in the process of lowering the precast slab 200 to the operation position of the precast beam 100, and the precast slab 200 is ensured to be accurately lowered to the operation position. The hoisting device of two dollies on roof beam of this embodiment can be used for carrying prefabricated plate 200 in the hoist and mount of the middle hoist and mount region of construction, and not only easy operation, stability are good, application scope is wide, are favorable to improving the efficiency of construction, and can regulate and control the nature strong, are favorable to improving the hoist and mount precision.
Referring to fig. 1, the guide rail mechanism includes a plurality of guide rails 1 that are parallel to each other and are arranged on the precast beam 100 at intervals, the guide rails 1 extend along a first direction, a plurality of groups of rollers 21 are arranged on the conveying trolley 2 at intervals, each group of rollers 21 is arranged at intervals along the first direction, and the plurality of groups of rollers 21 are respectively arranged on the plurality of guide rails 1 in a one-to-one sliding manner. On two precast beams 100, through the cooperation of a plurality of guide rails 1 and a plurality of groups of rollers 21 for conveying trolley 2 slides steadily and sets up on precast beam 100, is difficult for toppling.
Referring to fig. 1 and 2, the conveying trolley 2 includes a base 22 slidably disposed on the guide rail mechanism and a supporting frame 23 disposed on the base 22, a containing cavity for containing the hoisting mechanism is disposed on the supporting frame 23, and the hoisting mechanism is mounted on the supporting frame 23 and extends out of the containing cavity to be detachably connected to the prefabricated slab 200. The conveying trolley 2 with a stable structure is formed by the base 22 and the supporting frame 23, so that the conveying trolley 2 is not prone to overturning when sliding on the guide rail 1, and a stable supporting force is provided for a hoisting mechanism arranged on the supporting frame 23, and the prefabricated plate 200 is stably hoisted by the hoisting mechanism.
Referring to fig. 2, the base 22 includes a first supporting member 221 and two second supporting members 222 respectively disposed at two ends of the first supporting member 221, the second supporting members 222 and the first supporting member 221 are disposed at an included angle, one ends of the two second supporting members 222 departing from the first supporting member 221 are respectively provided with a limiting portion 223, the limiting portion 223 is located at one side of the first supporting member 221 facing the prefabricated slab 200, the two limiting portions 223 are disposed opposite to each other along the first direction and at intervals, and a limiting groove for accommodating a hoisting mechanism is formed between the two limiting portions 223, so that the hoisting mechanism can extend out of the transporting trolley 2 to hoist the prefabricated slab 200.
Referring to fig. 2, the supporting frame 23 includes a plurality of vertical columns 231 disposed on the base 22 along the circumferential direction of the accommodating cavity at intervals and a top supporting structure disposed at one end of the plurality of vertical columns 231 departing from the base 22, and the hoisting mechanism is disposed on the top supporting structure. Vertical stand 231 in this embodiment is provided with four and sets up perpendicularly on base 22, four vertical stands 231 are along the circumference interval setting that holds the chamber, top bearing structure includes two first top support bars 232 and two second top support bars 233, two first top support bars 232 and two second top support bars 233 are staggered connection in proper order and set up, hoisting machine constructs and sets up on top bearing structure and be located the chamber that holds in the middle of four vertical stands 231, hoisting machine constructs and utilizes the space between the vertical stand 231 of interval setting and the spacing groove between two spacing portions 223 on the base 22 to cooperate and stretch out transport trolley 2 in order to hoist prefabricated plate 200.
Optionally, the top supporting structure is provided with a fixing member 25, the fixing member 25 is in a shape of a long strip, two ends of the fixing member 25 are respectively connected to the two first top supporting rods 232, and the hoisting mechanism is installed on the fixing member 25.
Alternatively, referring to fig. 2, the first top support bar 232 and the second top support bar 233 are respectively disposed perpendicular to the vertical columns 231, the two first top support bars 232 are disposed parallel to each other and spaced apart from each other, two vertical columns 231 are respectively connected to two ends of the first top support bar 232, two second top support bars 233 are disposed parallel to each other and spaced apart from each other, two first top support bars 232 are respectively connected to two ends of the second top support bars 233, and the first top support bar 232 is perpendicular to the second top support bar 233.
Referring to fig. 1, the driving mechanism on each precast beam 100 includes two hoists 4 respectively disposed at both sides of the rail mechanism along the first direction, that is, the two hoists 4 are respectively disposed at both ends of the rail 1 along the first direction, both ends of the transporting trolley 2 on each precast beam 100 are respectively connected to output ends of the two hoists 4, one hoist 4 is used for driving the transporting trolley 2 to move along the first direction toward the initial position of the precast beam 100, and the other hoist 4 is used for driving the transporting trolley 2 to move along the first direction toward the working position of the precast beam 100, so that the transporting trolley 2 on the precast beam 100 can be accurately moved to any position on the rail 1.
Referring to fig. 1 and 2, two ends of the conveying trolley 2 are respectively detachably provided with a traction rope 41, and the two traction ropes 41 on the conveying trolley 2 are respectively connected to the output ends of the two winches 4. Specifically, the two ends of the conveying trolley 2 in the first direction are respectively provided with a hanging lug 24, one end of the traction rope 41 is detachably connected to the hanging lug 24, and the other end of the traction rope is connected to the output end of the winch 4.
Referring to fig. 2, the hoisting mechanism comprises an electric hoist 31 fixedly arranged on the conveying trolley 2 and a hoisting tool 32 detachably connected to the electric hoist 31, a chain 311 is adjustably arranged on the electric hoist 31, a hook 312 is arranged on the chain 311, one end of the hoisting tool 32 is detachably connected to the hook 312, and the other end of the hoisting tool 32 extends out of the conveying trolley 2 and is detachably connected to the precast slab 200. The electric hoist 31 is controlled to adjust the hook 312 thereon, so that the prefabricated plate 200 connected to the hook 312 is hoisted, and the operation is convenient and trouble-saving. The electric hoist 31 in this embodiment belongs to a conventional device in the art, and both the electric control mechanism and the internal structure thereof belong to the means in the prior art, which are not described herein again.
Referring to fig. 1 and 3, the lifting appliance 32 includes a fixed frame 321, a lifting lug 322 and a plurality of pin shafts 323, the plurality of pin shafts 323 are arranged at one side of the fixed frame 321 at intervals, each pin shaft 323 is detachably arranged in a lifting hole on the prefabricated plate 200 in a penetrating manner, and the lifting lug 322 is arranged at one side of the fixed frame 321 away from the pin shaft 323 and is hooked on the hook 312 of the electric hoist 31. The two hangers 32 of the two precast girders 100 are engaged with each other, and a plurality of pins 323 of the two hangers 32 are respectively inserted into a plurality of lifting holes at both ends of the precast slab 200, so that the precast slab 200 is stably lifted.
Optionally, referring to fig. 3, the fixing frame 321 includes a connecting rod 3211, a first connecting plate 3212 and a second connecting plate 3213, the first connecting plate 3212 and the second connecting plate 3213 are disposed at an interval, the connecting rod 3211 is disposed two, the two connecting rods 3211 form an included angle, one end of the connecting rod 3211 is connected to the first connecting plate 3212, and the other end is connected to the second connecting plate 3213. The lifting lugs 322 are disposed on the second connecting plate 3213, the plurality of pins 323 are disposed on the first connecting plate 3212 at intervals, and when the pins 323 are disposed in the lifting holes of the prefabricated slab 200, the first connecting plate 3212 is attached to the prefabricated slab 200, so as to enhance the connection stability between the lifting device 32 and the prefabricated slab 200. The structure of the fixing frame 321 is matched with the lifting lug 322 and the plurality of pin shafts 323 to form the lifting appliance 32 which has a simple structure and is convenient to process.
Optionally, the distance between the two connecting rods 3211 increases gradually in a direction away from the first connecting plate 3212, improving the structural stability of the spreader 32.
The embodiment further provides a hoisting method of the double trolley on the beam, which uses the hoisting device of the double trolley on the beam to hoist and transport the precast slab 200 located at the initial position of the precast beam 100 to the operation position of the precast beam 100, and comprises the following steps:
step 1, assembling and preparing: the guide rail mechanism, the driving mechanism, the conveying trolley 2 and the hoisting mechanism are sequentially arranged on the two precast beams 100 respectively, so that the hoisting device of the double trolleys on the beams is temporarily and fixedly arranged in various construction hoisting places, the cost is low, and the operation is convenient.
Step 2, positioning before hoisting: the two driving mechanisms are operated to drive the two conveying trolleys 2 to move to the initial positions of the precast beams 100 respectively, namely, the winch 4 which is used for driving the conveying trolleys 2 to move towards the initial positions along the first direction on the driving mechanisms is used for driving the conveying trolleys 2 to move, so that the conveying trolleys 2 before being hoisted are accurately located at the initial positions of the precast beams 100, and hoisting precision is guaranteed.
Step 3, hoisting: the two hoisting mechanisms are operated to hoist the precast slab 200 located at the initial position of the precast beam 100 to a hoisting height position away from the precast beam 100, that is, the electric hoist 31 is operated to drive the hook 312 to drive the precast slab 200 to move away from the precast beam 100 so as to hoist the precast slab 200. Optionally, the hoisting height in this embodiment is about 20 cm from the precast beam 100, which can ensure that the subsequent transport trolley 2 transports the precast slab 200 along the guide rail 1, and the appropriate hoisting height can save resources and ensure operation safety.
Step 4, a transportation stage: the two driving mechanisms are operated to synchronously move the two conveying trolleys 2 to the operation positions on the precast beam 100, and in the process, the winch 4 which is arranged on the driving mechanisms and used for driving the conveying trolleys 2 to move towards the operation positions along the first direction can be used for driving the conveying trolleys 2 to move, so that the two conveying trolleys 2 drive the precast slabs 200 to move to the operation positions of the precast beam 100, and the stability is good; and if the precast slab 200 has deviation, the position of the conveying trolley 2 can be regulated and controlled by the two winches 4 positioned at the two ends of the guide rail 1 at any time, so that the relative positions of the two conveying trolleys 2 are ensured, and the precast slab 200 is hoisted and conveyed in a balanced manner.
Step 5, lowering and adjusting: the prefabricated plate 200 is transferred in two hoisting mechanisms of operation, transfers the in-process at the prefabricated plate 200, operates two actuating mechanism and adjusts the prefabricated plate 200, until the operation position on the precast beam 100 is transferred to the prefabricated plate 200 accuracy, controls two electric block 31 promptly and transfers the prefabricated plate 200 and controls hoist engine 4 and adjust the position of carrying trolley 2 simultaneously, is applicable to complicated hoist and mount environment more, can in time adjust the position of prefabricated plate 200, ensures that the prefabricated plate 200 accurately transfers to the operation position.
Step 6, resetting: firstly, the bolt 323 on the lifting appliance 32 is pulled out from the lifting hole on the prefabricated slab 200, so that the lifting appliance 32 is detached from the lowered prefabricated slab 200; and then operating the two driving mechanisms to reset the two conveying trolleys 2 to the initial positions of the precast beams 100, hoisting and transporting the next precast slab 200, namely, driving the conveying trolleys 2 to move by using the winches 4 which are arranged on the driving mechanisms and used for driving the conveying trolleys 2 to move towards the initial positions along the first direction, so that the conveying trolleys 2 accurately return to the initial positions of the precast beams 100 again, and hoisting the next precast slab 200 to improve the operation efficiency.
Optionally, in step 3, the hoisting stage: the steps of operating the two hoisting mechanisms to hoist the precast slab 200 located at the initial position of the precast beam 100 to a hoisting height position away from the precast beam 100 are as follows:
and 3.1, respectively connecting the two hoisting mechanisms with two ends of the precast slab 200 positioned at the initial position on the precast beam 100, namely respectively inserting a plurality of pin shafts 323 on the hoisting device 32 into a plurality of hoisting holes on the precast slab 200 in a one-to-one correspondence manner, ensuring that two ends of the precast slab 200 are stably connected with the hoisting devices 32 on the two conveying trolleys 2, and then controlling the electric hoist 31 to hoist the precast slab 200.
Step 3.2, operating the two hoisting mechanisms simultaneously to hoist the precast slabs 200 to the hoisting height position away from the precast beam 100, and in the process, ensuring that the electric hoists 31 on the two conveying trolleys 2 hoist the precast slabs 200 synchronously as much as possible to avoid the precast slabs 200 from inclining, so that the construction safety can be ensured; if the precast slab 200 is inclined, the two electric hoists 31 can be respectively operated to adjust the heights of the two ends of the precast slab 200, so as to ensure that the precast slab 200 is in a balanced state.
Optionally, in step 1, the assembly and preparation phase: the steps of sequentially mounting a guide rail mechanism, a driving mechanism, a conveying trolley 2 and a hoisting mechanism on the two precast beams 100 are as follows:
step 1.1, respectively installing a guide rail mechanism and a driving mechanism on two precast beams 100, namely respectively installing two guide rails 1 on each precast beam 100, and then respectively installing two winches 4 at two ends of each guide rail 1 on each precast beam 100.
Step 1.2, the two conveying trolleys 2 are respectively arranged on the guide rail mechanism and connected with the output end of the driving mechanism, namely, the two groups of rollers 21 of the conveying trolleys 2 are correspondingly arranged on the two guide rails 1 one by one, and then the traction rope 41 of the winch 4 is connected on the hanging lug 24 of the conveying trolleys 2. The pulling ropes 41 of the two winches 4 on each precast beam 100 are respectively connected to the hangers 24 at both ends of the conveying trolley 2 on the precast beam 100.
Step 1.3, the hoisting mechanism is installed on the conveying trolley 2, namely the electric hoist 31 is installed on the fixing part 25 on the conveying trolley 2, and the lifting lug 322 on the lifting appliance 32 is hooked on the hook 312 of the electric hoist 31, so that the whole assembly, installation and disassembly are convenient, and labor and time are saved.
The hoisting method of the double trolleys on the beam in the embodiment realizes hoisting and transporting the prefabricated plate 200 positioned at the initial position of the prefabricated beam 100 to the operation position of the prefabricated beam 100, is not only suitable for hoisting and transporting the prefabricated plate 200 in the middle hoisting area of construction, but also has simple operation steps, good stability, and is beneficial to improving the construction efficiency, and the whole hoisting operation process has strong adjustability and is beneficial to improving the hoisting precision.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A hoisting device of double trolleys on a beam is arranged on two precast beams (100) arranged at intervals and used for hoisting and transporting precast slabs (200) positioned at the initial position of the precast beam (100) to the operation position of the precast beam (100), and is characterized by comprising:
the two guide rail mechanisms are respectively arranged on the two precast beams (100);
the moving mechanism comprises two conveying trolleys (2), the two conveying trolleys (2) are respectively arranged on the two guide rail mechanisms in a sliding mode along a first direction, and the first direction is the length direction of the precast beam (100);
each conveying trolley (2) is provided with one hoisting mechanism, and the hoisting mechanisms are configured to hoist the precast slabs (200);
the two driving mechanisms are respectively arranged on the two precast beams (100) and are configured to respectively drive the two conveying trolleys (2) to reciprocate along the first direction.
2. The hoisting device of double trolley on the beam as claimed in claim 1, wherein the guide rail mechanism comprises a plurality of guide rails (1) which are parallel to each other and arranged at intervals, the guide rails (1) extend along a first direction, a plurality of groups of rollers (21) are arranged on the conveying trolley (2) at intervals, each group of rollers (21) are arranged at intervals along the first direction, and the plurality of groups of rollers (21) are respectively arranged on the plurality of guide rails (1) in a one-to-one corresponding sliding manner.
3. The hoisting device for the double trolleys on the beam as claimed in claim 1, wherein the conveying trolley (2) comprises a base (22) slidably arranged on the guide rail mechanism and a support frame (23) arranged on the base (22), a containing cavity for containing the hoisting mechanism is arranged on the support frame (23), and the hoisting mechanism is arranged on the support frame (23) and extends out of the containing cavity to be detachably connected with the precast slab (200).
4. The hoisting device of the double trolley on the beam as claimed in claim 3, wherein the base (22) comprises a first support member (221) and two second support members (222) respectively arranged at two ends of the first support member (221), the second support members (222) and the first support member (221) are arranged at an included angle, one ends of the two second support members (222) departing from the first support member (221) are respectively provided with a limiting portion (223), the limiting portions (223) are arranged at one side of the first support member (221) facing the precast slab (200), the two limiting portions (223) are arranged at intervals along the first direction, and a limiting groove for accommodating the hoisting mechanism is formed between the two limiting portions (223).
5. The hoisting device for double trolleys on beams according to claim 3, wherein the supporting frame (23) comprises a plurality of vertical columns (231) arranged on the base (22) at intervals along the circumferential direction of the accommodating cavity and a top supporting structure arranged at one end of the plurality of vertical columns (231) far away from the base (22), and the hoisting mechanism is arranged on the top supporting structure.
6. The hoisting device of double trolley on beam as claimed in claim 1, wherein the driving mechanism on each precast beam (100) comprises two winches (4) respectively disposed at both sides of the rail mechanism along the first direction, both ends of the transporting trolley (2) are respectively connected to the output ends of the two winches (4), one of the winches (4) is used for driving the transporting trolley (2) to move along the first direction towards the initial position of the precast beam (100), and the other of the winches (4) is used for driving the transporting trolley (2) to move along the first direction towards the working position of the precast beam (100).
7. The double trolley hoist device on the beam as claimed in claim 1, characterized in that the hoist mechanism comprises an electric hoist (31) fixedly arranged on the transport trolley (2) and a hoist (32) detachably connected to the electric hoist (31), the hoist (32) extending out of the transport trolley (2) and detachably connected to the precast slab (200).
8. The hoisting device of double trolley on beam as claimed in claim 7, wherein the hanger (32) comprises a fixed frame (321), a lifting lug (322) and a plurality of pin shafts (323), the plurality of pin shafts (323) are arranged at one side of the fixed frame (321) at intervals, each pin shaft (323) is detachably arranged in a lifting hole on the precast slab (200), and the lifting lug (322) is arranged at one side of the fixed frame (321) opposite to the pin shaft (323) and is detachably connected to the electric hoist (31).
9. A method for hoisting a double trolley on a beam, characterized in that a precast slab (200) located at a starting position of a precast beam (100) is hoisted and transported to an operation position of the precast beam (100) by using the hoisting device of the double trolley on a beam as set forth in any one of claims 1 to 8, comprising the steps of:
step 1, assembling and preparing: a guide rail mechanism, a driving mechanism, a conveying trolley (2) and a hoisting mechanism are respectively and sequentially arranged on the two precast beams (100);
step 2, positioning before hoisting: operating the two driving mechanisms to drive the two conveying trolleys (2) to move to the initial positions of the precast beams (100) respectively;
step 3, hoisting: operating the two hoisting mechanisms to hoist the precast slab (200) located at the initial position of the precast beam (100) to a hoisting height position away from the precast beam (100);
step 4, a transportation stage: operating the two driving mechanisms to synchronously move the two conveying trolleys (2) to the operation position on the precast beam (100);
step 5, lowering and adjusting: operating the two hoisting mechanisms to lower the precast slabs (200), and operating the two driving mechanisms to adjust the precast slabs (200) in the process of lowering the precast slabs (200) until the precast slabs (200) are accurately lowered to the operation position on the precast beam (100);
step 6, resetting: and operating the two driving mechanisms to reset the two conveying trolleys (2) to the initial position of the precast beam (100), hoisting and transporting the next precast slab (200).
10. The hoisting method of the double trolley on the beam as claimed in claim 9, wherein in the step 3, the hoisting stage: the steps of operating the two hoisting mechanisms to hoist the precast slab (200) located at the initial position of the precast beam (100) to a hoisting height position away from the precast beam (100) are as follows:
step 3.1, respectively connecting the two hoisting mechanisms with two ends of the precast slab (200) positioned at the initial position on the precast beam (100);
and 3.2, operating the two hoisting mechanisms simultaneously to hoist the precast slab (200) to a hoisting height position away from the precast beam (100).
CN202111613093.1A 2021-12-27 2021-12-27 Hoisting device and hoisting method for double trolleys on beam Pending CN114275700A (en)

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RU2189349C2 (en) * 2000-09-28 2002-09-20 Закрытое акционерное общество "Авиакомпания Волга-Днепр" AIRBORNE LIFTING DEVICE MAINLY FOR HEAVY TRANSPORT AIRPLANE Aн-124-100
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CN116446660B (en) * 2023-04-20 2024-01-05 中铁建工集团有限公司 Beam plate conveying device

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