A lifting device for double trolleys on beams and a lifting method thereof

Abstract

The present invention relates to the technical field of building engineering construction, and in particular to a lifting device of a double trolley on a beam and a lifting method thereof, which are used to lift and transport a precast panel located at the starting position of a precast beam to the working position of the precast beam. The lifting device of the double trolley on the beam comprises two guide rail mechanisms and two driving mechanisms respectively arranged on two precast beams, as well as a motion mechanism and a lifting mechanism. The motion mechanism comprises two conveying trolleys, and the two conveying trolleys are respectively slidably arranged on the two guide rail mechanisms along a first direction, and the first direction is the length direction of the precast beam; each conveying trolley is provided with a lifting mechanism, and the lifting mechanism is configured to lift the precast panel; the two driving mechanisms are configured to respectively drive the two conveying trolleys to reciprocate along the first direction. The lifting and transportation device of the double trolley on the beam of the present invention is not only simple to operate and has good stability when in use, but also has strong controllability, so as to improve the precision of the lifting operation of the precast panel.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering construction, and in particular to a hoisting device of a double trolley on a beam and a hoisting method thereof. Background Art

[0002] In the construction of building projects, it is often necessary to hoist prefabricated components in a large hoisting area, specifically including the sequential hoisting of prefabricated column heads, prefabricated beams and prefabricated panels. However, the existing technology generally uses cranes, such as truck cranes, crawler cranes, tower cranes and other large hoisting machinery, but such equipment can only be arranged for peripheral hoisting and is suitable for hoisting prefabricated components in the peripheral hoisting area. It is not only difficult to hoist prefabricated components such as prefabricated panels in the middle hoisting area, which limits the hoisting construction, but also has low hoisting accuracy, poor operability, and cumbersome and complicated operation steps, requiring a lot of manpower assistance, affecting construction efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a lifting device with a double trolley on a beam and a lifting method thereof, which can be suitable for lifting heavy components in a large lifting area, and is not only simple to operate and has good stability, but also has strong controllability to improve the accuracy of the lifting operation.

[0004] In order to achieve the above objectives, the following technical solutions are provided:

[0005] A lifting device with double trolleys on beams, arranged on two prefabricated beams arranged at intervals, is used to lift and transport the prefabricated panels located at the starting positions of the prefabricated beams to the working positions of the prefabricated beams, comprising:

[0006] Two guide rail mechanisms, the two guide rail mechanisms are respectively arranged on the two prefabricated beams;

[0007] The motion mechanism comprises two conveying trolleys, wherein the two conveying trolleys are respectively slidably arranged on the two guide rail mechanisms along a first direction, wherein the first direction is the length direction of the precast beam;

[0008] A lifting mechanism, each of the transport trolleys is provided with a lifting mechanism, and the lifting mechanism is configured to lift the prefabricated panels;

[0009] Two driving mechanisms are respectively arranged on the two prefabricated beams and are configured to respectively drive the two conveying carriages to reciprocate along the first direction.

[0010] Furthermore, the guide rail mechanism includes a plurality of guide rails that 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 at intervals on the conveying trolley, each group of rollers are arranged at intervals along the first direction, and the plurality of groups of rollers are slidably arranged on the plurality of guide rails in a one-to-one correspondence.

[0011] Furthermore, the conveying trolley includes a base slidably arranged on the guide rail mechanism and a support frame arranged on the base, the support frame is provided with a accommodating cavity for accommodating the lifting mechanism, the lifting mechanism is installed on the support frame and extends out of the accommodating cavity to be detachably connected with the prefabricated panel.

[0012] Further, the base includes a first support member and two second support members respectively arranged at both ends of the first support member, the second support members are arranged at an angle to the first support member, and the two second support members are respectively provided with limiting portions at one end facing away from the first support member, and the limiting portions are located on the side of the first support member facing the prefabricated panel, and the two limiting portions are spaced apart along the first direction, and a limiting groove for accommodating the lifting mechanism is formed between the two limiting portions.

[0013] Furthermore, the support frame includes a plurality of vertical columns arranged on the base at intervals along the circumference of the accommodating cavity and a top support structure arranged at one end of the plurality of vertical columns away from the base, and the hoisting mechanism is arranged on the top support structure.

[0014] Furthermore, the driving mechanism on each of the prefabricated beams includes two winches respectively arranged on both sides of the guide rail mechanism along the first direction, and both ends of the conveying trolley are respectively connected to the output ends of the two winches, one winch is used to drive the conveying trolley to move along the first direction toward the starting position of the prefabricated beam, and the other winch is used to drive the conveying trolley to move along the first direction toward the working position of the prefabricated beam.

[0015] Furthermore, the lifting mechanism includes an electric hoist fixedly mounted on the conveying trolley and a lifting device detachably connected to the electric hoist, and the lifting device extends out of the conveying trolley and is detachably connected to the prefabricated panel.

[0016] Furthermore, the lifting device includes a fixed frame, a lifting ear and a plurality of pins, wherein the plurality of pins are arranged at intervals on one side of the fixed frame, and each of the pins is detachably inserted into a lifting hole on the prefabricated plate, and the lifting ear is arranged on a side of the fixed frame away from the pin and is detachably connected to the electric hoist.

[0017] Furthermore, a method for hoisting a double trolley on a beam is provided, using the hoisting device of the double trolley on the beam as described in any one of the above items to hoist and transport the prefabricated board located at the starting position of the prefabricated beam to the working position of the prefabricated beam, comprising the following steps:

[0018] Step 1, assembly and preparation stage: respectively installing the guide rail mechanism, the driving mechanism, the conveying trolley and the lifting mechanism on the two prefabricated beams in sequence;

[0019] Step 2, positioning stage before hoisting: operate the two driving mechanisms to drive the two conveying trolleys to move to the starting positions of the prefabricated beams respectively;

[0020] Step 3, hoisting stage: operate the two hoisting mechanisms to lift the prefabricated panel located at the starting position of the prefabricated beam to a hoisting height position from the prefabricated beam;

[0021] Step 4, transportation stage: operating the two driving mechanisms to synchronously move the two transport carts to the working position on the prefabricated beam;

[0022] Step 5, lowering and adjusting stage: operating the two hoisting mechanisms to lower the prefabricated panels, and during the lowering process of the prefabricated panels, operating the two driving mechanisms to adjust the prefabricated panels until the prefabricated panels are accurately lowered to the working position on the prefabricated beams;

[0023] Step 6, reset phase: operate the two driving mechanisms to reset the two transport trolleys to the starting position of the precast beam, and hoist and transport the next precast panel.

[0024] Further, in step 3, the hoisting stage: the steps of operating the two hoisting mechanisms to lift the prefabricated panel located at the starting position of the prefabricated beam to a hoisting height position from the prefabricated beam are as follows:

[0025] Step 3.1, connecting the two hoisting mechanisms to the two ends of the prefabricated panel located at the starting position on the prefabricated beam respectively;

[0026] Step 3.2, simultaneously operating the two lifting mechanisms to lift the prefabricated panel to a lifting height position from the prefabricated beam.

[0027] The beneficial effects of the present invention are:

[0028] The lifting and transporting device of the double trolley on the beam of the present invention realizes the lifting and transporting of the prefabricated board located at the starting position on the prefabricated beam to the working position of the prefabricated beam by respectively arranging a guide rail mechanism, a conveying trolley and a driving mechanism on two prefabricated beams, and arranging a lifting mechanism on each conveying trolley. Specifically, the conveying trolleys on the two prefabricated beams are driven to reciprocate on the guide rail mechanism along the first direction by two driving mechanisms, so that the conveying trolley can run between the starting position and the working position on the prefabricated beam, and the positions of the two conveying trolleys are conveniently adjusted under the drive of the two driving mechanisms to maintain synchronous sliding, so as to improve the lifting operation accuracy. Under the cooperation of the lifting mechanism and the driving mechanism, the lowering accuracy can be adjusted in the process of lowering the prefabricated board to the working position of the prefabricated beam, so as to ensure that the prefabricated board is accurately lowered to the working position. The lifting and transporting device of the double trolley on the beam of the present invention can be used for lifting and transporting prefabricated components in the middle lifting area of ​​the construction. It is not only simple to operate, has good stability, and a wide range of applications, which is conducive to improving construction efficiency, but also has strong controllability, which is conducive to improving lifting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of a lifting device for a double trolley on a beam provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the structure of a conveying trolley of a lifting device for a double trolley on a beam provided in an embodiment of the present invention;

[0032] Figure 3 A schematic structural diagram of a hoisting device for a double trolley on a beam provided in an embodiment of the present invention.

[0033] In the figure:

[0034] 100-precast beam; 200-precast slab;

[0035] 1-Guide rail;

[0036] 2-transport trolley; 21-roller; 22-base; 221-first support member; 222-second support member; 223-limiting part; 23-support frame; 231-vertical column; 232-first top support rod; 233-second top support rod; 24-hanging ear; 25-fixing member;

[0037] 31-electric hoist; 311-chain; 312-hook; 32-hanging device; 321-fixed frame; 3211-connecting rod; 3212-first connecting plate; 3213-second connecting plate; 322-lifting ear; 323-pin shaft;

[0038] 4- winch; 41- traction rope. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product is usually placed when in use, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, or to distinguish between different structures or components, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0043] See also Figure 1The embodiment of the present invention provides a lifting device with a double trolley on a beam, which is arranged on two precast beams 100 arranged at intervals, and is used to lift and transport a precast panel 200 located at the starting position of the precast beam 100 to the working position of the precast beam 100. The lifting device with a double trolley on a beam includes two guide rail mechanisms and two driving mechanisms respectively arranged on the two precast beams 100, as well as a motion mechanism and a lifting mechanism. Among them, the motion mechanism includes two conveying trolleys 2, and the two conveying trolleys 2 are respectively slidably arranged on the two guide rail mechanisms 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 lifting mechanism, and the lifting mechanism is configured to lift the precast panel 200; the two driving mechanisms are configured to respectively drive the two conveying trolleys 2 to reciprocate along the first direction, and the first direction is as shown in FIG. Figure 1 The direction indicated by arrows ab is shown in .

[0044] The lifting device of the double trolley on the beam of this embodiment is realized by respectively setting a guide rail mechanism, a conveying trolley 2 and a driving mechanism on two precast beams 100, and setting a lifting mechanism on each conveying trolley 2 to lift and transport the precast panel 200 located at the starting position of the precast beam 100 to the working position of the precast beam 100. Specifically, the conveying trolleys 2 on the two precast beams 100 are driven to reciprocate on the guide rail mechanism along the first direction by two driving mechanisms, so that the conveying trolley 2 can run between the starting position and the working position of the precast beam 100, and the positions of the two conveying trolleys 2 can be easily adjusted under the drive of the two driving mechanisms to maintain synchronous sliding, so as to improve the lifting operation accuracy. Under the cooperation of the lifting mechanism and the driving mechanism, the lowering accuracy can be adjusted in the process of lowering the precast panel 200 to the working position of the precast beam 100, so as to ensure that the precast panel 200 is accurately lowered to the working position. The lifting device of the double trolley on the beam of this embodiment can be used to lift and transport prefabricated panels 200 in the middle lifting area of ​​the construction. It is not only simple to operate, has good stability, and a wide range of applications, which is beneficial to improving construction efficiency, but also has strong controllability, which is beneficial to improving lifting accuracy.

[0045] See also Figure 1 The guide rail mechanism includes a plurality of guide rails 1 which are parallel to each other and spaced apart on the precast beam 100. The guide rails 1 extend along a first direction. A plurality of groups of rollers 21 are spaced apart on the conveying trolley 2. Each group of rollers 21 is spaced apart along the first direction. The plurality of groups of rollers 21 are slidably disposed on the plurality of guide rails 1 in a one-to-one correspondence. On the two precast beams 100, the plurality of guide rails 1 cooperate with the plurality of groups of rollers 21, so that the conveying trolley 2 is slidably disposed on the precast beam 100 and is not easy to overturn.

[0046] See also Figure 1 and Figure 2The transport trolley 2 includes a base 22 slidably disposed on the guide rail mechanism and a support frame 23 disposed on the base 22. The support frame 23 is provided with a receiving cavity for accommodating the lifting mechanism. The lifting mechanism is installed on the support frame 23 and extends out of the receiving cavity to be detachably connected to the prefabricated panel 200. The transport trolley 2 with a stable structure is formed by the base 22 and the support frame 23, so that the transport trolley 2 is not easy to overturn when sliding on the guide rail 1, and provides a stable supporting force for the lifting mechanism installed on the support frame 23, so as to ensure that the lifting mechanism stably lifts the prefabricated panel 200.

[0047] See also Figure 2 The base 22 includes a first support member 221 and two second support members 222 respectively arranged at both ends of the first support member 221. The second support members 222 are arranged at an angle to the first support member 221. The two second support members 222 are respectively provided with a limiting portion 223 at one end away from the first support member 221. The limiting portion 223 is located on the side of the first support member 221 facing the precast panel 200. The two limiting portions 223 are opposite to each other and arranged at intervals along the first direction. A limiting groove for accommodating a lifting mechanism is formed between the two limiting portions 223 so that the lifting mechanism can extend out of the conveying trolley 2 to lift the precast panel 200.

[0048] See also Figure 2 The support frame 23 includes a plurality of vertical columns 231 arranged on the base 22 at intervals along the circumference of the accommodating cavity and a top support structure arranged at one end of the plurality of vertical columns 231 away from the base 22, and the lifting mechanism is arranged on the top support structure. In this embodiment, four vertical columns 231 are arranged vertically on the base 22, and the four vertical columns 231 are arranged at intervals along the circumference of the accommodating cavity. The top support structure includes two first top support rods 232 and two second top support rods 233, and the two first top support rods 232 and the two second top support rods 233 are arranged in sequence and staggered. The lifting mechanism is arranged on the top support structure and is located in the accommodating cavity between the four vertical columns 231. The lifting mechanism uses the gaps between the vertical columns 231 arranged at intervals and the limit grooves between the two limit parts 223 on the base 22 to extend the conveying trolley 2 to lift the prefabricated panel 200.

[0049] Optionally, a fixing member 25 is provided on the top supporting structure. The fixing member 25 is in the shape of an elongated strip, and two ends of the fixing member 25 are respectively connected to the two first top supporting rods 232 . The hoisting mechanism is installed on the fixing member 25 .

[0050] Alternatively, see Figure 2The first top support rod 232 and the second top support rod 233 are respectively arranged perpendicular to the vertical column 231, the two first top support rods 232 are parallel to each other and arranged at intervals, the two ends of the first top support rod 232 are respectively connected to the two vertical columns 231, the two second top support rods 233 are parallel to each other and arranged at intervals, the two ends of the second top support rod 233 are respectively connected to the two first top support rods 232, and the first top support rod 232 and the second top support rod 233 are perpendicular to each other.

[0051] See also Figure 1 The driving mechanism on each precast beam 100 includes two winches 4 respectively arranged on both sides of the guide rail mechanism along the first direction, that is, the two winches 4 are respectively located at the two ends of the guide rail 1 along the first direction, and the two ends of the conveying trolley 2 on each precast beam 100 are respectively connected to the output ends of the two winches 4, one winch 4 is used to drive the conveying trolley 2 to move along the first direction toward the starting position of the precast beam 100, and the other winch 4 is used to drive the conveying trolley 2 to move along the first direction toward the working position of the precast beam 100, so that the conveying trolley 2 on the precast beam 100 can be accurately moved to any position on the guide rail 1.

[0052] See also Figure 1 and Figure 2 The two ends of the conveying trolley 2 are detachably provided with traction ropes 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 along the first direction are respectively provided with hanging ears 24, one end of the traction rope 41 is detachably connected to the hanging ear 24, and the other end is connected to the output end of the winch 4.

[0053] See also Figure 2 The hoisting mechanism includes an electric hoist 31 fixedly arranged on the conveying trolley 2 and a sling 32 detachably connected to the electric hoist 31. The electric hoist 31 is adjustably provided with a chain 311, and the chain 311 is provided with a hook 312. One end of the sling 32 is detachably connected to the hook 312, and the other end of the sling 32 extends out of the conveying trolley 2 and is detachably connected to the prefabricated panel 200. By controlling the electric hoist 31 to adjust the hook 312 thereon, the prefabricated panel 200 connected to the hook 312 is hoisted, and the operation is convenient and trouble-free. In this embodiment, the electric hoist 31 belongs to the conventional setting in the field, and its electric control mechanism and internal structure belong to the existing technical means, which will not be repeated here.

[0054] See also Figure 1 and Figure 3The hanger 32 includes a fixing frame 321, a lifting lug 322 and a plurality of pins 323. The plurality of pins 323 are arranged at intervals on one side of the fixing frame 321, and each pin 323 is detachably inserted into a lifting hole on the prefabricated panel 200. The lifting lug 322 is arranged on a side of the fixing frame 321 away from the pin 323 and is hooked on the hook 312 of the electric hoist 31. The two hangers 32 on the two prefabricated beams 100 cooperate with each other, and the plurality of pins 323 on the two hangers 32 are respectively inserted into the plurality of lifting holes at both ends of the prefabricated panel 200, so that the prefabricated panel 200 can be lifted stably.

[0055] Alternatively, see Figure 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 arranged at intervals. Two connecting rods 3211 are arranged at an angle, and 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 lug 322 is arranged on the second connecting plate 3213, and a plurality of pins 323 are arranged at intervals on the first connecting plate 3212. When the pins 323 are inserted into the lifting holes on the prefabricated board 200, the first connecting plate 3212 is abutted against the prefabricated board 200 to enhance the connection stability between the hanger 32 and the prefabricated board 200. The structural setting of the fixing frame 321 cooperates with the lifting lug 322 and the plurality of pins 323 to form a hanger 32 with a simple structure and easy processing.

[0056] Optionally, the distance between the two connecting rods 3211 gradually increases along the direction away from the first connecting plate 3212 , thereby improving the structural stability of the sling 32 .

[0057] This embodiment also provides a method for hoisting a double trolley on a beam, using the above-mentioned hoisting device of the double trolley on the beam to hoist and transport the prefabricated panel 200 located at the starting position of the prefabricated beam 100 to the working position of the prefabricated beam 100, including the following steps:

[0058] Step 1, assembly and preparation stage: the guide rail mechanism, driving mechanism, conveying trolley 2 and lifting mechanism are respectively installed on the two prefabricated beams 100 in sequence, so as to temporarily fix the lifting device of the double trolley on the beam in various construction lifting sites, which is low in cost and easy to operate.

[0059] Step 2, positioning stage before lifting: operate the two driving mechanisms to drive the two conveyor trolleys 2 to move to the starting positions of the precast beam 100 respectively, that is, use the winch 4 on the driving mechanism to drive the conveyor trolley 2 to move along the first direction toward the initial position to drive the conveyor trolley 2 to move, so that the conveyor trolley 2 before lifting is accurately located at the initial position of the precast beam 100 to ensure the lifting accuracy.

[0060] Step 3, hoisting stage: operate the two hoisting mechanisms to lift the prefabricated panel 200 located at the starting position of the prefabricated beam 100 to the hoisting height position from the prefabricated beam 100, that is, drive the hook 312 by operating the electric hoist 31 to drive the prefabricated panel 200 to move away from the prefabricated beam 100 to lift the prefabricated panel 200. Optionally, the hoisting height position in this embodiment is about 20 cm away from the prefabricated beam 100, and this height can ensure that the subsequent transport trolley 2 transports the prefabricated panel 200 along the guide rail 1. A moderate hoisting height can save resources and ensure operation safety.

[0061] Step 4, transportation stage: operate the two driving mechanisms to synchronously move the two conveyor trolleys 2 to the working position on the precast beam 100. During this process, the winch 4 on the driving mechanism for driving the conveyor trolley 2 to move along the first direction toward the working position can be used to drive the conveyor trolley 2 to move, so that the two conveyor trolleys 2 drive the precast panel 200 to move to the working position of the precast beam 100 with good stability; and if the precast panel 200 is offset, the position of the conveyor trolley 2 can be adjusted at any time by the two winches 4 located at both ends of the guide rail 1 to ensure the relative position of the two conveyor trolleys 2 to ensure that the precast panel 200 is lifted and transported in a balanced manner.

[0062] Step 5, lowering and adjusting stage: operate the two lifting mechanisms to lower the precast panel 200. During the lowering process of the precast panel 200, operate the two driving mechanisms to adjust the precast panel 200 until the precast panel 200 is accurately lowered to the working position on the precast beam 100, that is, operate the two electric hoists 31 to lower the precast panel 200 while operating the winch 4 to adjust the position of the conveying trolley 2. This is more suitable for complex lifting environments and can adjust the orientation of the precast panel 200 in time to ensure that the precast panel 200 is accurately lowered to the working position.

[0063] Step 6, reset phase: first, pull out the pin 323 on the sling 32 from the lifting hole on the precast panel 200 to disassemble the sling 32 from the lowered precast panel 200; then operate the two driving mechanisms to reset the two conveyor trolleys 2 to the starting position of the precast beam 100, and lift and transport the next precast panel 200, that is, use the winch 4 on the driving mechanism to drive the conveyor trolley 2 to move along the first direction toward the initial position to drive the conveyor trolley 2 to move, so that the conveyor trolley 2 returns to the initial position of the precast beam 100 accurately again, and the next precast panel 200 is lifted in time to improve the working efficiency.

[0064] Optionally, in step 3, the hoisting stage: the steps of operating two hoisting mechanisms to lift the prefabricated panel 200 located at the starting position of the prefabricated beam 100 to a hoisting height position from the prefabricated beam 100 are as follows:

[0065] Step 3.1, respectively connect the two lifting mechanisms to the two ends of the precast panel 200 located at the starting position on the precast beam 100, that is, insert the multiple pins 323 on the lifting device 32 into the multiple lifting holes on the precast panel 200 one by one, ensure that both ends of the precast panel 200 are stably connected to the lifting devices 32 on the two conveying trolleys 2, and then operate the electric hoist 31 to lift the precast panel 200.

[0066] Step 3.2, operate the two lifting mechanisms at the same time to lift the precast panel 200 to the lifting height position from the precast beam 100. During this process, try to ensure that the electric hoists 31 on the two conveying trolleys 2 lift the precast panel 200 synchronously to avoid the precast panel 200 from tilting, so as to ensure construction safety; if the precast panel 200 tilts, the two electric hoists 31 can be controlled separately to adjust the height of the two ends of the precast panel 200 to ensure that the precast panel 200 is in a balanced state.

[0067] Optionally, in step 1, the assembly and preparation stage: the steps of sequentially installing the guide rail mechanism, the drive mechanism, the transport trolley 2 and the hoisting mechanism on the two prefabricated beams 100 are as follows:

[0068] Step 1.1, respectively install a guide rail mechanism and a driving mechanism on two precast beams 100, that is, respectively install two guide rails 1 on each precast beam 100, and then respectively install two winches 4 at both ends of the guide rail 1 on each precast beam 100.

[0069] Step 1.2, install two conveying trolleys 2 on the guide rail mechanism respectively, and connect them to the output end of the driving mechanism, that is, install the two sets of rollers 21 of the conveying trolley 2 on the two guide rails 1 one by one, and then connect the traction rope 41 of the hoist 4 to the hanging ears 24 of the conveying trolley 2. The traction ropes 41 of the two hoists 4 on each precast beam 100 are respectively connected to the hanging ears 24 at both ends of the conveying trolley 2 on the precast beam 100.

[0070] Step 1.3, install the lifting mechanism on the conveying trolley 2, that is, install the electric hoist 31 on the fixing part 25 on the conveying trolley 2, and hook the lifting ear 322 on the lifting device 32 on the hook 312 of the electric hoist 31. The whole assembly and disassembly is convenient, labor-saving and time-saving.

[0071] The lifting method of the double trolley on the beam in this embodiment realizes the lifting and transportation of the prefabricated panel 200 located at the starting position of the prefabricated beam 100 to the working position of the prefabricated beam 100. It is not only suitable for lifting and transporting the prefabricated panel 200 in the middle lifting area of ​​the construction, but also has simple operating steps and good stability, which is conducive to improving construction efficiency. The entire lifting operation process is highly controllable, which is conducive to improving lifting accuracy.

[0072] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A double trolley hoisting device on a beam, arranged on two prefabricated beams (100) arranged at an interval, used for hoisting and transporting a prefabricated panel (200) located at a starting position of the prefabricated beam (100) to an operating position of the prefabricated beam (100), characterized in that: include: Two guide rail mechanisms, the two guide rail mechanisms being respectively arranged on the two prefabricated beams (100); The motion mechanism comprises two transport trolleys (2), the two transport trolleys (2) being respectively slidably arranged on the two guide rail mechanisms along a first direction, the first direction being the length direction of the prefabricated beam (100); A lifting mechanism, each of the transport trolleys (2) being provided with a lifting mechanism, the lifting mechanism being configured to lift the prefabricated panels (200); Two driving mechanisms, the two driving mechanisms are respectively arranged on the two prefabricated beams (100) and are configured to respectively drive the two transport trolleys (2) to reciprocate along the first direction; 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) extending along a first direction, a plurality of groups of rollers (21) being arranged at intervals on the conveying trolley (2), each group of rollers (21) being arranged at intervals along the first direction, and the plurality of groups of rollers (21) being slidably arranged on the plurality of guide rails (1) in a one-to-one correspondence. The transport trolley (2) comprises a base (22) slidably arranged on the guide rail mechanism and a support frame (23) arranged on the base (22); the support frame (23) is provided with a receiving cavity for accommodating the lifting mechanism; the lifting mechanism is mounted on the support frame (23) and extends out of the receiving cavity to be detachably connected to the prefabricated panel (200); 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) being arranged at an angle with the first support member (221), and a limiting portion (223) being respectively arranged at one end of the two second support members (222) away from the first support member (221), the limiting portion (223) being located on a side of the first support member (221) facing the prefabricated panel (200), the two limiting portions (223) being arranged at intervals along the first direction, and a limiting groove for accommodating the hoisting mechanism being formed between the two limiting portions (223); The support frame (23) comprises a plurality of vertical columns (231) arranged on the base (22) at intervals along the circumference of the accommodating cavity, and a top support structure arranged at one end of the plurality of vertical columns (231) away from the base (22), and the hoisting mechanism is arranged on the top support structure; Four vertical columns (231) are provided and are vertically arranged on the base (22); the four vertical columns (231) are arranged at intervals along the circumference of the accommodating cavity; the top support structure comprises two first top support rods (232) and two second top support rods (233); the two first top support rods (232) and the two second top support rods (233) are arranged in a staggered manner in sequence; the hoisting mechanism is provided on the top support structure and is located in the accommodating cavity between the four vertical columns (231); the hoisting mechanism utilizes the gaps between the vertical columns (231) arranged at intervals and the limiting grooves between the two limiting parts (223) on the base (22) to extend out of the conveying trolley (2) to hoist the prefabricated panel (200); The driving mechanism on each of the precast beams (100) comprises two hoists (4) respectively arranged on both sides of the guide rail mechanism along the first direction, the two ends of the conveying trolley (2) are respectively connected to the output ends of the two hoists (4), one hoist (4) is used to drive the conveying trolley (2) to move along the first direction towards the starting position of the precast beam (100), and the other hoist (4) is used to drive the conveying trolley (2) to move along the first direction towards the working position of the precast beam (100); The lifting mechanism comprises an electric hoist (31) fixedly mounted on the transport trolley (2) and a lifting device (32) detachably connected to the electric hoist (31), wherein the lifting device (32) extends out of the transport trolley (2) and is detachably connected to the prefabricated panel (200); The lifting device (32) comprises a fixing frame (321), a lifting ear (322) and a plurality of pins (323); the plurality of pins (323) are arranged at intervals on one side of the fixing frame (321), and each of the pins (323) is detachably inserted into a lifting hole on the prefabricated plate (200); the lifting ear (322) is arranged on a side of the fixing frame (321) away from the pins (323) and is detachably connected to the electric hoist (31).

2. A method for hoisting a double trolley on a beam, characterized in that: Using the lifting device of the double trolley on the beam as claimed in claim 1, the prefabricated panel (200) located at the starting position of the prefabricated beam (100) is lifted and transported to the working position of the prefabricated beam (100), comprising the following steps: Step 1, assembly and preparation stage: installing the guide rail mechanism, the driving mechanism, the transport trolley (2) and the lifting mechanism on the two prefabricated beams (100) in sequence; Step 2, pre-hoisting positioning stage: operating the two driving mechanisms to drive the two transport trolleys (2) to move to the starting positions of the prefabricated beams (100) respectively; Step 3, hoisting stage: operating the two hoisting mechanisms to lift the prefabricated panel (200) located at the starting position of the prefabricated beam (100) to a hoisting height position from the prefabricated beam (100); Step 4, transport phase: operating the two driving mechanisms to synchronously move the two transport trolleys (2) to a working position on the prefabricated beam (100); Step 5, lowering and adjusting stage: operating the two lifting mechanisms to lower the prefabricated panel (200); during the lowering process of the prefabricated panel (200), operating the two driving mechanisms to adjust the prefabricated panel (200) until the prefabricated panel (200) is accurately lowered to the working position on the prefabricated beam (100); Step 6, resetting phase: operating the two driving mechanisms to reset the two transport trolleys (2) to the starting position of the prefabricated beam (100), and hoisting and transporting the next prefabricated panel (200).

3. The method for hoisting a double trolley on a beam according to claim 2, characterized in that: In step 3, the hoisting stage: the steps of operating the two hoisting mechanisms to lift the prefabricated panel (200) located at the starting position of the prefabricated beam (100) to a hoisting height position from the prefabricated beam (100) are as follows: Step 3.1, connecting the two hoisting mechanisms to two ends of the prefabricated plate (200) located at a starting position on the prefabricated beam (100) respectively; Step 3.2, operating the two lifting mechanisms simultaneously to lift the prefabricated panel (200) to a lifting height position from the prefabricated beam (100).

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