CN110723677B - Auxiliary lifting trolley for precast beam - Google Patents
Auxiliary lifting trolley for precast beam Download PDFInfo
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- CN110723677B CN110723677B CN201911117543.0A CN201911117543A CN110723677B CN 110723677 B CN110723677 B CN 110723677B CN 201911117543 A CN201911117543 A CN 201911117543A CN 110723677 B CN110723677 B CN 110723677B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a precast beam auxiliary lifting trolley, which effectively solves the problems that the efficiency of lifting and assembling precast beams by a jack is low, a falsework needs to be damaged when the existing trolley drives the precast beams to move, and the existing trolley is inconvenient to control in the existing construction mode; the technical scheme includes that the trolley comprises a bottom plate of the trolley, wherein power devices are fixedly connected to the left side and the right side of the bottom plate, a middle plate is fixedly connected to the bottom plate, a top plate is rotatably connected to the middle plate, two groups of lifting devices are arranged on the upper plate, and the two groups of lifting devices are communicated with a top plate oil pump fixedly connected to the top plate; the scaffold is simple in structure, convenient to control, capable of effectively improving the assembling efficiency of the precast beams, capable of ensuring the integrity of the scaffold, convenient to use in a turnover mode and high in practicability.
Description
Technical Field
The invention relates to the technical field of bridge construction machinery, in particular to a precast beam auxiliary lifting trolley.
Background
With the gradual development and the gradual maturity of the bridge-crossing technology, more and more bridges are erected by adopting a method of prefabricating section beams, box beams are prefabricated in a factory in advance, are transported to a construction site in sections, and are hoisted, positioned and assembled on the site during construction. Wherein, the segment box girder is assembled and erected by adopting a falsework. The falsework main beam is mainly of a two-span simply supported beam structure, and the longitudinal main beam adopts a plurality of layers of six-four military beams. 4 spiral supports are symmetrically arranged at the bottom of each section of box girder in a balanced manner and are supported on top beams of the top layer of the vertical and horizontal distribution girders of the falsework.
And when the beam is moved, a gantry hoisting scheme is adopted, and the segmental box beam is hoisted by penetrating the suspender into the reserved hole at the end part of the box beam. And after the strength of the box girder segment reaches the specified strength, the box girder segment is lifted by the gantry and is transported to a girder storage area. Before the beam sections are erected, the beam bodies are hoisted to a beam transporting flat car from a beam storage area, and are hoisted to the falsework from the beam transporting flat car.
When the segment box girder is erected to the end sections, the supports before erection need to be installed, and preparation is made for girder erection. The top surface elevations of the pier and the pad stone are carefully checked before the support is installed. After the support is adjusted in place according to the designed elevation, grouting treatment is carried out by adopting cement paste, no gap is left between the top and bottom surfaces and the concrete surfaces of the beam and the pad stone after the support is installed, and the support is ensured to be horizontal.
And then, accurately positioning the section beam, wherein the accurate positioning refers to adjusting the beam section to the position required by the design in the transverse direction, the longitudinal direction and the vertical direction. The vertical, horizontal and vertical are adjusted by using a double-coordinate jack, and the center line of the line is used as a reference, namely: the central line of the line is superposed with the central line of the beam body, and the other beam sections are controlled and adjusted according to the relative distance of the beam ends; and setting and gradually adjusting the height direction according to the preset camber of construction. Specifically, each beam section is placed on four screw supports or jacks, and each support point has three degrees of freedom which are restricted with each other, and adjusting one of the three degrees of freedom necessarily affects the other two. Therefore, the accurate positioning of the beam section is a process of repeated adjustment and gradual approach. The process of adjustment is repeatedly and circularly carried out according to the sequence of longitudinal adjustment → transverse adjustment → vertical adjustment in the construction process until the design requirement is met.
The four spiral supports or jacks can not move simultaneously, the stroke is short, the efficiency is low, four jacks are needed under each beam, the cost is high, the most important is that the moving speed is too slow, and the glue smeared on the end face is initially solidified before moving in place.
Some construction units in the prior art develop and try to adopt lifting trolleys to assist assembly, however, the applicant finds that the trolleys which are currently developed and tried still have some disadvantages, wherein the most serious is the power in the process of driving the precast beams to move by the trolleys. The power of the existing developed and tried trolley mostly adopts hydraulic pushing, the fixing mode of one end of the trolley mostly adopts bolts to fix the trolley on a falsework, and a plurality of holes need to be drilled on the falsework, so the falsework is difficult to reuse after being disassembled, the drilling cost is too high, a large amount of construction waste is generated, the green construction and cost control are not facilitated, meanwhile, a plurality of working hours need to be consumed for disassembling and installing the hydraulic pushing device every time, the hydraulic pushing device is more convenient than a jack, but the efficiency improvement is limited. Therefore, a lifting trolley which is provided with a movably fixed hydraulic pushing device, is convenient to control and saves working hours and workers is urgently needed.
Therefore, the invention provides a precast beam auxiliary lifting trolley to solve the problem.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the auxiliary lifting trolley for the precast beam, which effectively solves the problems that the efficiency of lifting and assembling the precast beam by a jack is low, a falsework needs to be damaged when the existing trolley drives the precast beam to move, and the existing trolley is inconvenient to control in the existing construction mode.
The trolley comprises a bottom plate of the trolley, wherein power devices are fixedly connected to the left side and the right side of the bottom plate, a middle plate is fixedly connected to the bottom plate, a top plate is rotatably connected to the middle plate, two groups of lifting devices are arranged on the top plate, and the two groups of lifting devices are communicated with a top plate oil pump fixedly connected to the top plate;
the two groups of lifting devices respectively comprise two vertical oil cylinders which are connected to the top plate in a sliding manner and a horizontal oil cylinder which is fixedly connected to the top plate, wherein the horizontal oil cylinder is a double-rod oil cylinder, and two ends of the horizontal oil cylinder are respectively fixedly connected with the two vertical oil cylinders;
two power device all include one end fixed connection power cylinder on the bottom plate, two the equal fixedly connected with driving beam of the driving cylinder other end, two the equal fixedly connected with fixed cylinder in driving beam both sides, two driving cylinder, four fixed cylinder all with the bottom plate oil pump intercommunication of fixed connection on the bottom plate, the bottom plate on the fixedly connected with oil tank, roof oil pump and bottom plate oil pump all with the oil tank intercommunication.
Preferably, horizontal electromagnetic valves are arranged at the positions of pipelines communicated with the top plate oil pump and the two horizontal oil cylinders, and vertical electromagnetic valves are arranged at the positions of pipelines communicated with the top plate oil pump and the four vertical oil cylinders;
the pipeline communicated with the bottom plate oil pump and the two power oil cylinders is provided with a power electromagnetic valve;
the two power beams are hollow beams and are communicated with the corresponding fixed oil cylinders and the power oil cylinders, and fixed electromagnetic valves are arranged at the communication positions of the power beams and the corresponding fixed oil cylinders;
the top plate oil pump, the bottom plate oil pump, the horizontal electromagnetic valve, the power electromagnetic valve and the fixed electromagnetic valve are all electrically connected with the central control module fixedly connected to the bottom plate.
Preferably, the middle plate both sides respectively two curb girders of fixedly connected with, four the curb girder on all sliding connection have a supporting seat from top to bottom, four the supporting seat in all detachably be connected with supporting screw, four equal sliding connection have the balancing pole of rotating the connection on corresponding curb girder supporting seat one side, balancing pole other end sliding connection have the balancing platform of sliding connection on corresponding curb girder from top to bottom, four the balancing platform all link to each other four through spring and corresponding curb girder the equal fixedly connected with bull's eye gyro wheel of balancing platform lower extreme.
Preferably, both sides of the middle plate are fixedly connected with correction oil cylinders, and the upper ends of the two correction oil cylinders are fixedly connected with arc plates;
the two correction oil cylinders are communicated with the bottom plate oil pump through pipelines, the pipeline communicated with the bottom plate oil pump is provided with a correction electromagnetic valve, and the correction electromagnetic valve is electrically connected with the central control module.
Preferably, a plurality of correcting steel balls are rotatably connected to the upper surfaces of the two arc-shaped plates.
Preferably, four equal fixedly connected with bull's eye gyro wheel of perpendicular hydro-cylinder lower extreme.
Preferably, the lower ends of the four fixed oil cylinders are rotatably connected with wheels.
Preferably, the middle plate is fixedly connected with a rotary oil cylinder, the upper end of the rotary oil cylinder is fixedly connected with a top plate, and the rotary oil cylinder is communicated with the oil tank.
Preferably, the central control module comprises an electromagnetic valve control unit, a signal processing unit and a wireless signal transceiving unit.
Preferably, the two precast beam auxiliary lifting trolleys are in a group, and the central control modules of the two precast beam auxiliary lifting trolleys are connected with an external remote control device through wireless connection.
Preferably, the lower end of the bottom plate is rotatably connected with a plurality of auxiliary wheels.
The invention aims at the problems that the efficiency of lifting and assembling the precast beam by a jack is low, the falsework needs to be damaged when the existing trolley drives the precast beam to move, and the existing trolley is inconvenient to control in the existing construction mode, and has the following beneficial effects:
1. the lifting trolley is adopted to replace a jack, so that the prefabricated beam can be driven to move for a larger distance when the assembled prefabricated beam is lifted, and the assembling efficiency is improved;
2. the combination of two groups of power beams and fixed oil cylinders is adopted to replace the structure that the existing trolley needs bolts to fix the hydraulic thrustor when running, so that the disassembly and assembly process of fixing the hydraulic thrustor on the falsework is saved, the working hours are greatly saved, the falsework is protected, the falsework can be recycled, the construction cost is saved, and green construction is realized;
3. the central control module and the remote control device are adopted to control the working states of the electromagnetic valves and the oil pumps, so that the assembly of the precast beam is more conveniently controlled by workers.
The scaffold is simple in structure, convenient to control, capable of effectively improving the assembling efficiency of the precast beams, capable of ensuring the integrity of the scaffold, convenient to use in a turnover mode and high in practicability.
Drawings
Fig. 1 is a first perspective view of the present invention.
FIG. 2 is a left side view of the present invention.
FIG. 3 is a schematic front view of a model for removing artifacts according to the present invention.
FIG. 4 is a first cross-sectional view of the vertical cylinder and its related structure according to the present invention.
Fig. 5 is a partial perspective sectional view of the power beam and its related structure according to the present invention.
Fig. 6 is a schematic cross-sectional view of the power beam and its related structure according to the present invention.
Fig. 7 is a partial cross-sectional schematic view of the side sill and related structure of the present invention.
Fig. 8 is a perspective view of the second embodiment of the present invention.
Fig. 9 shows the operation states of the solenoid valves according to the present invention.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 9. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The invention discloses a precast beam auxiliary lifting trolley which is characterized by comprising a bottom plate 1 of the trolley, wherein the lower end of the bottom plate 1 is rotatably connected with walking wheels, when the trolley works, the bottom plate 1 runs on a falsework by virtue of the walking wheels, the bottom plate 1 simultaneously provides a fixed foundation for a subsequent structure, the left side and the right side of the bottom plate 1 are fixedly connected with power devices, the power devices are used for pushing the bottom plate 1 to run on the falsework, a middle plate 3 is fixedly connected to the bottom plate 1, a top plate 4 is rotatably connected to the middle plate 3, the bottom plate 1, the middle plate 3 and the top plate 4 form a bearing foundation structure of the device and provide a fixed foundation for each subsequent structure, two groups of lifting devices are arranged on the top plate 4, the two groups of lifting devices are both communicated with a top plate 5 fixedly connected to the top plate 4, and the top plate 5 of an oil pump is connected with an external power supply, in order to facilitate the walking of the device and improve the flexibility, a diesel generator and a matched diesel tank 12 are fixedly connected to the bottom plate 1, and a top plate oil pump 5 is connected with the diesel generator and is powered by the diesel generator;
two groups of lifting devices respectively comprise two vertical oil cylinders 6 which are connected on the top plate 4 in a sliding way and a horizontal oil cylinder 7 which is fixedly connected on the top plate 4, the horizontal oil cylinder 7 is a double-rod oil cylinder, two ends of the horizontal oil cylinder 7 are respectively and fixedly connected with the two vertical oil cylinders 6, two groups of four vertical oil cylinders 6 are used for lifting and bearing the precast beam, the upper end of the vertical oil cylinder 6 is fixedly connected with a rubber thick gasket, thereby preventing the collision damage of the precast beam body when contacting with the vertical oil cylinder 6, the horizontal oil cylinder 7 is used for adjusting the relative position of the two connected vertical oil cylinders 6, therefore, the device can use various precast beam bodies with different widths, and particularly, the horizontal oil cylinder 7 is a double-output-shaft oil cylinder, also called a bidirectional oil cylinder, and oil is filled or pumped into the horizontal oil cylinder to drive two shafts of the horizontal oil cylinder to synchronously extend or retract, so that the two connected vertical oil cylinders 6 can be synchronously adjusted;
the two power devices respectively comprise two power cylinders 8, one end of each power cylinder 8 is fixedly connected to the bottom plate 1, the other ends of the two power cylinders 8 are respectively and fixedly connected with a power beam 9, two sides of each power beam 9 are respectively and fixedly connected with a fixed oil cylinder 10, the fixed oil cylinders 10 at two ends of each power beam 9 are respectively positioned between the upper wing plate and the lower wing plate of the corresponding falsework I-steel, when the fixed oil cylinders 10 at two ends of each power beam 9 extend out, the power beams 9 can be clamped on the falsework, so that the power beams 9 can be used as the force generation basis of the power cylinders 8, the power cylinders 8 can conveniently push the bottom plate 1 to move on the falsework by taking the power beams 9 as the basis, in order to ensure the balance of stress, two power cylinders 8, the other ends of which are fixedly connected to the bottom plate 1, are symmetrically and fixedly connected to each power beam 9, namely four power cylinders 8 are, The four fixed oil cylinders 10 are all communicated with a bottom plate oil pump 11 fixedly connected to the bottom plate 1, the bottom plate oil pump 11 is electrically connected with the diesel generator, an oil tank 12 is fixedly connected to the bottom plate 1, and the top plate oil pump 5 and the bottom plate oil pump 11 are both communicated with the oil tank 12 through a hose 28;
when the four vertical oil cylinders 6 bear the beam body, the device is heavy in weight, in order to disperse pressure on the falsework and protect the trolley, the lower end of the bottom plate 1 is rotatably connected with a plurality of auxiliary wheels, so that the contact area between the device and the falsework is enlarged, and travelling wheels and the falsework are protected;
when the device is used specifically, a user firstly places the trolley on a falsework, adjusts the distance between two connected vertical oil cylinders 6 through a horizontal oil cylinder 7 by a top plate oil pump 5 in advance, then places a beam body on a support screw 20 which is placed in advance through a gantry crane or a crane, and then controls the trolley to walk to a required position, specifically, the bottom plate oil pump 11 can be controlled to firstly fill oil to a left fixed oil cylinder 10 so as to tightly press a left power beam 9 on the falsework, then the oil pressure is kept and the oil is filled into four power oil cylinders 8 on the left side and the right side, the left power oil cylinder 8 extends out and pushes a bottom plate 1 to move rightwards on the falsework, meanwhile, the right power oil cylinder 8 also extends out, when the left power oil cylinder 8 extends out to the farthest position, the right fixed oil cylinder 10 extends out to tightly press the right power beam 9 on the falsework, and the left, the left power beam 9 is changed into a movable state, then the bottom plate oil pump 11 pumps oil to the four power oil pumps at the same time, the right power oil cylinder 8 drives the bottom plate 1 trolley to continuously move rightwards, so that the trolley can move, if the trolley moves leftwards, the trolley can operate in a reverse direction, when the trolley arrives at a required position, the vertical oil cylinder 6 is controlled by the top plate oil pump 5 to lift the beam body, and then the trolley is controlled to move to splice the beam body and the previous beam body.
In the second embodiment, on the basis of the first embodiment, horizontal electromagnetic valves 13 are arranged at the positions of the pipelines communicated with the top plate oil pump 5 and the two horizontal oil cylinders 7, and vertical electromagnetic valves 14 are arranged at the positions of the pipelines communicated with the top plate oil pump 5 and the four vertical oil cylinders 6, that is, when the vertical oil cylinders 6 are required to work, the two horizontal electromagnetic valves 13 are closed, the four vertical electromagnetic valves 14 are opened, and when the horizontal oil cylinders 7 are required to work, the two horizontal electromagnetic valves 13 are opened, and the four vertical electromagnetic valves 14 are closed;
the pipeline communicated with the bottom plate oil pump 11 and the two power oil cylinders 8 is provided with a power electromagnetic valve 15, the two power beams 9 are hollow beams and are communicated with the corresponding fixed oil cylinders 10 and the power oil cylinders 8, the communication parts of the power beams 9 and the corresponding fixed oil cylinders 10 are provided with fixed electromagnetic valves 16, namely when the fixed electromagnetic valves 16 are required to work, the power electromagnetic valves 15 are opened, the power beams 9 are filled with hydraulic oil firstly, then the hydraulic oil is filled into the fixed oil cylinders 10 to extend the fixed oil cylinders 10, and after the fixed oil cylinders 10 extend out, the fixed electromagnetic valves 16 are controlled to be closed, so that the oil pressure in the fixed oil cylinders 10 is ensured, the fixed oil cylinders 10 can fix the power beams 9 on falsework, and then the bottom plate oil pump 11 continues to fill oil into the power beams 9 and pushes the cart to move through the power oil cylinders 8;
when the trolley is required to move by a user, the bottom plate oil pump 11 is controlled to work, the bottom plate oil pump 11 fills oil into the power beam 9, hydraulic oil fills the power beam 9 and fills the hydraulic oil into the fixed oil cylinder 10 to extend the fixed oil cylinder 10, the fixed electromagnetic valve 16 is closed after the fixed oil cylinder 10 extends out, the bottom plate oil pump 11 continues to fill oil into the power beam 9 and pushes the trolley to move through the power oil cylinder 8, because the size of the fixed oil cylinder 10 is constant, the time for filling the fixed oil cylinder 10 and extending the fixed oil cylinder 10 out to clamp the power beam 9 is the same each time, the fixed electromagnetic valve 16 is a normally closed delay closing valve, namely the fixed electromagnetic valve 16 is normally closed, and when the fixed electromagnetic valve 16 is opened for a preset time, the fixed electromagnetic valve 16 is automatically closed;
when the vertical oil cylinder 6 needs to work, the two horizontal electromagnetic valves 13 are closed, the four vertical electromagnetic valves 14 are opened, the top plate oil pump 5 fills or pumps oil to the vertical oil cylinder 6 and enables the vertical oil cylinder 6 to extend or contract, when the horizontal oil cylinder 7 needs to work, the two horizontal electromagnetic valves 13 are opened, the four vertical electromagnetic valves 14 are closed, and the top plate oil pump 5 fills or pumps oil to the horizontal oil cylinder 7 and enables the horizontal oil cylinder 7 to extend or contract.
In the third embodiment, on the basis of the second embodiment, in order to further improve the convenience of the device, the second embodiment provides a specific structure, so that the device is provided with a support screw 20, and the support screw 20 and the falsework are separated from contact when not needed, so that the device is not influenced to walk, specifically, two side beams 18 are fixedly connected to two sides of the middle plate 3 respectively, the four side beams 18 are higher than the upper end surface of the upper end wing plate of the falsework i-steel, the four side beams 18 are vertically and slidably connected with support seats 19, the support screws 20 are detachably connected in the four support seats 19, the lower end surface of the support screw 20 can be contacted with the upper end surface of the upper end wing plate of the falsework i-steel by pressing down the support screws 20, the support seats 19 can be driven to synchronously move downwards by pressing down the support screws 20, balancing rods 21 rotatably connected to the corresponding side beams 18 are slidably connected to one side of the four support, the other end of the balance rod 21 is connected with balance platforms 22 which are connected with the corresponding side beams 18 in an up-and-down sliding mode in a sliding mode, the four balance platforms 22 are connected with the corresponding side beams 18 through springs, when a beam body is placed on the support screw rods 20, the support screw rods 20 are pressed downwards under force, the lower ends of the support screw rods 20 are in contact with the falsework I-steel to support the beam body, the support screw rods 20 are pressed downwards to drive the support seats 19 to move downwards, the balance platforms 22 are lifted up and compress the springs under the action of the balance rods 21, when the beam body is supported by the vertical oil cylinders 6, the balance platforms 22 are pressed downwards under the action of the springs, the support seats 19 are lifted up under the action of the balance rods 21, the support screw rods 20 are separated from contact with the falsework I-steel, the trolley walking is not affected, the bull eye rollers are fixedly connected to the lower ends of the four balance platforms 22, the bull eye rollers are arranged to enable, when the trolley is used specifically, when a beam body is placed on the supporting screw rod 20, the supporting screw rod 20 is pressed downwards under force, the lower end of the supporting screw rod is in contact with the falsework I-steel to support the beam body, the supporting screw rod 20 is pressed downwards to drive the supporting seat 19 to move downwards, the balance platform 22 is lifted and compresses the spring under the action of the balance rod 21, the bull eye roller is separated from the falsework I-steel, when the beam body is supported by the vertical oil cylinder 6, the balance platform 22 is pressed downwards under the action of the spring, the bull eye roller is in contact with the falsework I-steel, the supporting seat 19 is lifted under the action of the balance rod 21, the supporting screw rod 20 is separated from the falsework I-steel, the trolley can conveniently walk, and it needs to be noted that the height of the upper end face of the supporting screw rod 20 is higher than that of the.
Fourth embodiment, on the basis of the first embodiment, because it is difficult to ensure that the beam is placed on the support stud without swinging in the process of hoisting the beam by a gantry crane or a crane, in order to ensure that the beam is not deflected when the gantry crane or the crane is placed on the support stud, the present embodiment provides a specific structure, specifically, two sides of the middle plate 3 are fixedly connected with the straightening cylinders 23, the upper ends of the two straightening cylinders 23 are fixedly connected with the arc-shaped plates 24, the radii and the central angles of the two arc-shaped plates 24 are the same, the upper surfaces of the two arc-shaped plates 24 are rotatably connected with a plurality of straightening steel balls 25, when the beam is lowered, the straightening cylinders 23 are lifted first, the lower end surface of the beam contacts the arc-shaped plates 24 and the straightening steel balls 25 thereon, the lower end surface of the beam slides along the straightening steel balls 25, the two opposite arc-shaped plates 24 and the straightening steel balls 25 thereon guide the lower end surface of the beam to swing, under the action of the correcting steel balls 25 on the arc-shaped plates 24, the axial lead of the beam body and the axial lead of the arc-shaped plates 24 are coplanar and the plane is vertical to the horizontal plane;
the two correcting oil cylinders 23 are communicated with the bottom plate oil pump 11 through pipelines, the two correcting oil cylinders 23 are provided with correcting electromagnetic valves 2 at the pipelines communicated with the bottom plate oil pump 11, the correcting electromagnetic valves 2 are electrically connected with the central control module 17, when the beam body is placed in front of the support screw 20 in the embodiment, the correcting electromagnetic valves 2 are controlled to be opened, the power electromagnetic valves 15 are controlled to be closed, the correcting oil cylinders 23 are lifted when the bottom plate oil pump 11 works, then the beam body is put down by a gantry crane or a crane, the lower end surface of the beam body is contacted with the arc-shaped plate 24, the beam body is aligned under the action of the correcting steel balls 25 on the arc-shaped plate 24, then the correcting oil cylinders 23 are contracted, the beam body is placed on the support screw 20, in order to prevent the beam body from damaging the correcting oil cylinders 23 in the aligning process, the correcting oil cylinders 23 are controlled to be slightly closed after the correcting oil cylinders 23 extend out, the pipe diameter that makes correction hydro-cylinder 23 and bottom plate oil pump 11 communicate diminishes, and thick hydraulic oil of deuterogamy forms interim attenuator, and the impact of the falling of the buffering roof beam body to correction hydro-cylinder 23, it should be noted that, because of hoist and mount in-process, even if the skew appears in the roof beam body meeting, its skew angle is also must be less, so this embodiment only plays the terminal fine setting to the skew of the roof beam body, so arc 24 and correction steel ball 25 are enough to realize the fine setting to the skew of the roof beam body.
Fifth embodiment, on the basis of second embodiment, four the equal fixedly connected with bull's eye gyro wheel of 6 lower extremes of perpendicular hydro-cylinder, the setting up of bull's eye gyro wheel is convenient for perpendicular hydro-cylinder 6 and is moved on roof 4, simultaneously, when the perpendicular hydro-cylinder 6 load-bearing beam body, the bull's eye gyro wheel also can be better provide the support for perpendicular hydro-cylinder 6.
In the sixth embodiment, on the basis of the second embodiment, the lower ends of the four fixed oil cylinders 10 are rotatably connected with wheels 26, and when the bottom plate 1 moves and drives the power beam 9 to move due to the arrangement of the wheels 26, the power beam 9 can better move on the falsework.
Seventh embodiment, on the basis of the first embodiment, a rotary cylinder 27 is fixedly connected to the middle plate 3, the top plate 4 is fixedly connected to the upper end of the rotary cylinder 27, the rotary cylinder 27 is communicated with the oil tank 12, the rotary cylinder 27 is electrically connected to the diesel generator, the rotary cylinder 27 is arranged to enable the rotation of the top plate 4 to be controllable, after the vertical cylinder 6 bears the beam, the rotary cylinder 27 can drive the top plate 4 to rotate, and further drive the beam to rotate, so that fine adjustment of the beam is achieved, and the arrangement is mainly used for ensuring that the device can still butt the beam with the previous beam when the straightening cylinder 23 fails.
An eighth embodiment is that, on the basis of the second embodiment, the central control module 17 includes an electromagnetic valve control unit, a signal processing unit, and a wireless signal transceiver unit, the electromagnetic valve control unit is electrically connected to the horizontal electromagnetic valve 13, the vertical electromagnetic valve 14, the power electromagnetic valve 15, the fixed electromagnetic valve 16, and the correction electromagnetic valve 2, and is capable of controlling the on/off of each electromagnetic valve, the wireless signal transceiver unit is connected to a wireless remote control device through a wireless signal, so that a user can control the operation of the device through the wireless remote control device, and the signal processing unit is configured to process a signal received by the wireless signal transceiver unit, and control the on/off of each electromagnetic valve through the electromagnetic valve control unit after processing the received signal.
The ninth embodiment is that, on the basis of any one of the first to eighth embodiments, two of the precast beam assisted lifting trolleys are in a group, the two precast beam assisted lifting trolleys have the external remote control device through the wireless connection, the arrangement of the embodiment is to improve the stability of the device, the two trolleys are respectively placed at two ends of the beam body, so that better and more stable bearing and beam body splicing are facilitated, meanwhile, the two trolleys synchronously work to enable the straightening oil cylinder 23 to better correct when the beam body is straightened, that is, if the beam body deflects to one side in the lowering process, the lower end face of the beam body contacts the straightening oil cylinder 23, the straightening oil cylinder 23 at the opposite side of the two trolleys is contacted, so that under the action of the arc-shaped plate 24 and the straightening steel ball 25, the lower end face of the beam body slides towards the middle of the arc-shaped plate 24 at a small distance, and the straightening effect is better played.
When the device is used specifically, a user firstly controls the device to a required position, specifically, the bottom plate oil pump 11 is controlled to work, the bottom plate oil pump 11 charges oil to the power beam 9, hydraulic oil fills the power beam 9, and the hydraulic oil is charged into the fixed oil cylinder 10 to extend the fixed oil cylinder 10, after the fixed oil cylinder 10 extends, the fixed electromagnetic valve 16 is closed, the bottom plate oil pump 11 continuously charges oil to the power beam 9 and pushes the trolley to move through the power oil cylinder 8, and because the size of the fixed oil cylinder 10 is constant, the fixed oil cylinder 10 is filled each time and the fixed oil cylinder 10 extends to clamp the power beam 9, the fixed electromagnetic valve 16 is a normally closed time-delay closing valve, namely the fixed electromagnetic valve 16 is normally closed, and when the fixed electromagnetic valve 16 is opened for a preset time, the fixed electromagnetic valve 16 is automatically closed;
when the distance between the vertical oil cylinders 6 is adjusted, specifically, two horizontal electromagnetic valves 13 are controlled to be opened, four vertical electromagnetic valves 14 are controlled to be closed, and the top plate oil pump 5 fills or pumps oil into the horizontal oil cylinder 7 and enables the horizontal oil cylinder 7 to extend or contract;
then, the correcting electromagnetic valve 2 is controlled to be opened, the power electromagnetic valve 15 is closed, the bottom plate oil pump 11 works to lift the correcting oil cylinder 23, then the correcting electromagnetic valve 2 is controlled to be slightly closed, then the gantry crane or the crane puts down the beam body, the lower end face of the beam body contacts the arc-shaped plate 24, the beam body is straightened under the action of the correcting steel ball 25 on the arc-shaped plate 24, the slightly closed correcting electromagnetic valve 2 enables the pipe diameter of a pipeline communicated with the correcting oil cylinder 23 and the bottom plate oil pump 11 to be reduced, and then viscous hydraulic oil is matched to form a temporary damper to buffer the impact of the falling beam body on the correcting oil cylinder 23;
then the vertical oil cylinder 6 is controlled to work, specifically, two horizontal electromagnetic valves 13 are controlled to be closed, four vertical electromagnetic valves 14 are controlled to be opened, and the top plate oil pump 5 charges or pumps oil to the vertical oil cylinder 6 and enables the vertical oil cylinder 6 to extend or contract;
when a beam body is placed on the supporting screw rod 20, the supporting screw rod 20 is pressed downwards under stress, the lower end of the supporting screw rod is in contact with the falsework I-steel to support the beam body, the supporting screw rod 20 is pressed downwards to drive the supporting seat 19 to move downwards, the balance platform 22 is lifted and compresses the spring under the action of the balance rod 21, the bull eye roller is separated from the falsework I-steel, when the beam body is supported by the vertical oil cylinder 6, the balance platform 22 is pressed downwards under the action of the spring, the bull eye roller is in contact with the falsework I-steel, the supporting seat 19 is lifted under the action of the balance rod 21, the supporting screw rod 20 is separated from the falsework I-steel to facilitate trolley walking, and then the trolley is controlled to walk to butt joint the beam body and a previous beam.
The invention aims at the problems that the efficiency of lifting and assembling the precast beam by a jack is low, the falsework needs to be damaged when the existing trolley drives the precast beam to move, and the existing trolley is inconvenient to control in the existing construction mode, and has the following beneficial effects:
1. the lifting trolley is adopted to replace a jack, so that the prefabricated beam can be driven to move for a larger distance when the assembled prefabricated beam is lifted, and the assembling efficiency is improved;
2. the combination of two groups of power beams and fixed oil cylinders is adopted to replace the structure that the existing trolley needs bolts to fix the hydraulic thrustor when running, so that the disassembly and assembly process of fixing the hydraulic thrustor on the falsework is saved, the working hours are greatly saved, the falsework is protected, the falsework can be recycled, the construction cost is saved, and green construction is realized;
3. the central control module and the remote control device are adopted to control the working states of the electromagnetic valves and the oil pumps, so that the assembly of the precast beam is more conveniently controlled by workers.
The scaffold is simple in structure, convenient to control, capable of effectively improving the assembling efficiency of the precast beams, capable of ensuring the integrity of the scaffold, convenient to use in a turnover mode and high in practicability.
Claims (8)
1. The auxiliary lifting trolley for the precast beam is characterized by comprising a bottom plate (1) of the trolley, wherein power devices are fixedly connected to the left side and the right side of the bottom plate (1), a middle plate (3) is fixedly connected to the bottom plate (1), a top plate (4) is rotatably connected to the middle plate (3), two groups of lifting devices are arranged on the top plate (4), and the two groups of lifting devices are communicated with a top plate oil pump (5) fixedly connected to the top plate (4);
the two groups of lifting devices respectively comprise two vertical oil cylinders (6) which are connected to the top plate (4) in a sliding manner and a horizontal oil cylinder (7) which is fixedly connected to the top plate (4), the horizontal oil cylinder (7) is a double-rod oil cylinder, and two ends of the horizontal oil cylinder (7) are respectively fixedly connected with the two vertical oil cylinders (6);
the two power devices respectively comprise a power cylinder (8) with one end fixedly connected to the bottom plate (1), the other end of each power cylinder (8) is fixedly connected with a power beam (9), two sides of each power beam (9) are fixedly connected with fixed cylinders (10), the two power cylinders (8) and the four fixed cylinders (10) are respectively communicated with a bottom plate oil pump (11) fixedly connected to the bottom plate (1), an oil tank (12) is fixedly connected to the bottom plate (1), and the top plate oil pump (5) and the bottom plate oil pump (11) are both communicated with the oil tank (12);
horizontal electromagnetic valves (13) are arranged at the positions of pipelines communicated with the top plate oil pump (5) and the two horizontal oil cylinders (7), and vertical electromagnetic valves (14) are arranged at the positions of pipelines communicated with the top plate oil pump (5) and the four vertical oil cylinders (6);
a power electromagnetic valve (15) is arranged at a pipeline communicated with the bottom plate oil pump (11) and the two power oil cylinders (8);
the two power beams (9) are hollow beams and are communicated with the corresponding fixed oil cylinders (10) and the power oil cylinders (8), and fixed electromagnetic valves (16) are arranged at the communication positions of the power beams (9) and the corresponding fixed oil cylinders (10);
the top plate oil pump (5), the bottom plate oil pump (11), the horizontal electromagnetic valve (13), the power electromagnetic valve (15) and the fixed electromagnetic valve (16) are electrically connected with a central control module (17) fixedly connected to the bottom plate (1);
middle plate (3) both sides respectively two curb girders of fixedly connected with (18), four curb girder (18) on equal sliding connection have supporting seat (19), four supporting seat (19) in all detachable be connected with supporting screw (20), four supporting seat (19) one side equal sliding connection have rotate balancing pole (21) of connection on corresponding curb girder (18), balancing pole (21) other end sliding connection have about sliding connection balance platform (22) on corresponding curb girder (18), four balance platform (22) all link to each other, four through spring and corresponding curb girder (18) the equal fixedly connected with bull's eye gyro wheel of balancing platform (22) lower extreme.
2. The precast beam assisted lifting trolley according to claim 1, wherein two sides of the middle plate (3) are fixedly connected with straightening oil cylinders (23), and the upper ends of the two straightening oil cylinders (23) are fixedly connected with arc-shaped plates (24);
two correction hydro-cylinder (23) all communicate through pipeline and bottom plate oil pump (11), two the pipeline department of correction hydro-cylinder (23) and bottom plate oil pump (11) intercommunication all be provided with correction solenoid valve (2), correction solenoid valve (2) with well accuse module (17) electricity connect.
3. The precast beam assisted lifting trolley according to claim 2, wherein a plurality of straightening steel balls (25) are rotatably connected to the two arc-shaped plates (24).
4. The precast beam assisted lifting trolley according to claim 1, wherein the lower ends of the four vertical oil cylinders (6) are fixedly connected with bull's eye rollers.
5. The precast beam assisted lifting trolley according to claim 1, wherein the lower ends of the four fixed oil cylinders (10) are rotatably connected with wheels (26).
6. The precast beam assisted lifting trolley according to claim 1, wherein a rotary oil cylinder (27) is fixedly connected to the middle plate (3), a top plate (4) is fixedly connected to the upper end of the rotary oil cylinder (27), and the rotary oil cylinder (27) is communicated with the oil tank (12).
7. The precast beam assisted lifting trolley according to claim 1, wherein the central control module (17) comprises an electromagnetic valve control unit, a signal processing unit and a wireless signal transceiving unit.
8. The precast beam assisted lifting trolley according to any one of claims 1 to 7, wherein the two precast beam assisted lifting trolleys are in a group, and a central control module (17) of the two precast beam assisted lifting trolleys is wirelessly connected with an external remote control device.
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| CN111453357A (en) * | 2020-03-17 | 2020-07-28 | 大族激光科技产业集团股份有限公司 | Steering mechanism and battery module production system |
| CN111301262B (en) * | 2020-03-31 | 2021-05-28 | 董庆宇 | Auxiliary transportation device for bridge construction precast beam |
| CN112376432A (en) * | 2020-11-03 | 2021-02-19 | 南京元琅建设工程有限公司 | Follow-up pretreatment device for precast beam plate |
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Effective date of registration: 20230117 Address after: 450000 - 3-337, Zone 6A, South China City, Zhengzhou, Longhu Town, Xinzheng City, Zhengzhou, Henan Province Patentee after: Zhengzhou Xinyipai Industrial Co.,Ltd. Address before: 450000 Xinzheng high tech Development Zone, Xinzheng City, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU University OF INDUSTRIAL TECHNOLOGY |
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