CN110723677B - Precast Beam Assisted Lifting Trolley - Google Patents

Abstract

The invention relates to a prefabricated beam auxiliary lifting trolley, which effectively solves the problems of low efficiency in the prior construction method of jack-lifting and assembling the prefabricated beam, the existing trolley needs to destroy the scaffold when driving the prefabricated beam to move, and the existing trolley is inconvenient to control; The technical solution is to include a bottom plate of the trolley, the left and right sides of the bottom plate are fixedly connected with power devices, the bottom plate is fixedly connected with a middle plate, the middle plate is rotatably connected with a top plate, and the Two sets of lifting devices are arranged on the upper plate, and the two sets of lifting devices are connected with the top plate oil pump fixedly connected to the top plate; the present invention has a simple structure, is easy to operate, can effectively improve the efficiency of prefabricated beam assembling, and at the same time It can ensure the completeness of the dummy frame, is convenient for turnover and has strong practicability.

Description

Precast Beam Assisted Lifting Trolley

technical field

The invention relates to the technical field of bridge construction machinery, in particular to a prefabricated beam auxiliary lifting trolley.

Background technique

With the gradual development and maturity of bridge bridge technology, more and more bridges are erected using prefabricated segment beams. The box beams are prefabricated in the factory in advance, and transported to the construction site in sections and sections, and then hoisted on site during construction. , positioning and assembly. Among them, the segmental box girder is assembled and erected by the artificial frame. The main beam of the artificial frame is mostly a two-span simply supported beam structure, and the longitudinal main beam adopts the multi-layer six-four type military beam. Four spiral supports are arranged symmetrically at the bottom of each box girder, and the spiral supports are supported on the top beam of the vertical and horizontal distribution beams of the scaffold.

When moving the beam, the gantry hoisting scheme is adopted, and the segmented box beam is hoisted by passing through the reserved hole at the end of the box beam with the boom. After the strength of the box girder segment reaches the specified strength, use the gantry to lift and move it to the beam storage area. Before the beam section is erected, the beam body is hoisted from the beam storage area to the beam transporting flat car, and then hoisted from the beam transporting flat car to the scaffold.

When the section box girder is erected to the end section, it is necessary to install the supports before erection to prepare for the erection of the girder. Before the installation of the bearing, the elevation of the pier and the top surface of the pad should be carefully checked. After the support is adjusted in place according to the design elevation, use cement grout for grouting. After the support is installed, there should be no gap between the top and bottom surfaces of the beam and the concrete surface of the cushion, and the support should be level.

Then there is the precise adjustment of the segment beam, which refers to the adjustment of the horizontal, vertical and vertical directions of the beam segment to the position required by the design. The vertical, horizontal and vertical directions are adjusted by double-coordinate jacks, based on the center line of the line, that is, the center line of the line and the center line of the beam body are coincident, and the remaining beam sections are controlled and adjusted by the relative distance of the beam ends; the height direction is based on the construction preset arch degree setting and successive adjustment. Specifically, each beam segment is placed on four screw supports or jacks, and each support point has three degrees of freedom, these three degrees of freedom restrict each other, and adjusting one of them will definitely affect the other two. Therefore, the precise adjustment of the beam segment is a process of repeated adjustment and gradual approach. During construction, repeat the cycle adjustment process in the order of vertical adjustment→horizontal adjustment→vertical adjustment until the design requirements are met.

The four screw supports or jacks cannot move at the same time, the stroke is short, and the efficiency is low. Four jacks are required under each beam, which is expensive. The most important thing is that the moving speed is too slow. .

Some existing construction units are developing and trying to use lifting trolleys to assist in assembly. However, the applicant has found that the currently developed and tested trolleys still have some drawbacks, the most serious of which is the power of the trolley to drive the prefabricated beam to move. The power of the trolleys currently developed and tested is mostly hydraulic jacking, and the fixing method of one end is mostly fixed on the artificial frame by bolts, and this requires a number of holes in the artificial frame, so that the artificial frame is difficult to be disassembled. Re-use, the drilling cost is too high and a large amount of construction waste will be generated, which is not conducive to green construction and cost control. At the same time, it also takes a lot of man-hours to disassemble and install the hydraulic jacking device each time. Although it is more convenient than the jack, the efficiency improvement is limited. . Therefore, there is an urgent need for a lifting trolley with a movable and fixed hydraulic jacking device, which is easy to control and saves man-hours and workers.

Therefore, the present invention provides a prefabricated beam-assisted lifting trolley to solve this problem.

SUMMARY OF THE INVENTION

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a prefabricated beam auxiliary lifting trolley, which effectively solves the problem of the low efficiency of jack-lifting and assembling the prefabricated beam in the existing construction method, and when the existing trolley drives the prefabricated beam to move It is necessary to destroy the scaffolding, and the existing trolley is not easy to control.

The present invention includes the bottom plate of the trolley, the left and right sides of the bottom plate are fixedly connected with power devices, the bottom plate is fixedly connected with a middle plate, the middle plate is rotatably connected with a top plate, and the top plate is provided with a Two sets of lifting devices, both of which are in communication with the top plate oil pump fixedly connected to the top plate;

The two sets of lifting devices both include two vertical oil cylinders slidably connected to the top plate and one horizontal oil cylinder fixedly connected to the top plate. Vertical oil cylinder fixed connection;

Both of the two power devices include a power cylinder whose one end is fixedly connected to the bottom plate, a power beam is fixedly connected to the other end of the two power cylinders, and a fixed cylinder is fixedly connected to both sides of the two power beams. , the two described power oil cylinders and the four described fixed oil cylinders are all communicated with the bottom plate oil pump that is fixedly connected to the bottom plate, the bottom plate is fixedly connected with an oil tank, and the top plate oil pump and the bottom plate oil pump are both communicated with the oil tank .

Preferably, a horizontal solenoid valve is provided at the pipes communicating with the top plate oil pump and the two horizontal oil cylinders, and a vertical solenoid valve is provided at the pipes communicating with the top plate oil pump and the four vertical oil cylinders;

A power solenoid valve is arranged at the pipe connecting the bottom plate oil pump and the two power oil cylinders;

The two power beams are both hollow beams and communicate with corresponding fixed oil cylinders and power oil cylinders, and fixed electromagnetic valves are provided at the communication places between 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 to the central control module fixedly connected to the bottom plate.

Preferably, two side beams are fixedly connected on both sides of the middle plate respectively, and support seats are slidably connected up and down on the four side beams, and support screws can be detachably connected to the four support seats. One side of each of the support bases is slidably connected with a balance rod that is rotatably connected to the corresponding side beam, and the other end of the balance rod is slidably connected to a balance platform that is slidably connected to the corresponding side beam. The balance platforms are all connected with the corresponding side beams through springs, and the lower ends of the four balance platforms are fixedly connected with bulls-eye rollers.

Preferably, straightening oil cylinders are fixedly connected to both sides of the middle plate, and arc plates are fixedly connected to the upper ends of the two straightening oil cylinders;

The two straightening oil cylinders are connected with the bottom plate oil pump through pipelines, and the two straightening oil cylinders and the bottom plate oil pump are connected with a straightening solenoid valve, and the straightening solenoid valve and the central control module electric connect.

Preferably, several straightening steel balls are rotatably connected to the two arc-shaped plates.

Preferably, bulls-eye rollers are fixedly connected to the lower ends of the four vertical oil cylinders.

Preferably, wheels are rotatably connected to the lower ends of the four fixed oil cylinders.

Preferably, a rotary oil cylinder is fixedly connected to the middle plate, a top plate is fixedly connected to the upper end of the rotary oil cylinder, and the rotary oil cylinder is communicated with the oil tank.

Preferably, the central control module includes a solenoid valve control unit, a signal processing unit, and a wireless signal transceiver unit.

Preferably, two of the prefabricated beam auxiliary lifting trolleys are in a group, and the central control modules of the two prefabricated beam auxiliary lifting trolleys are wirelessly connected with an external remote control device.

Preferably, a plurality of auxiliary wheels are rotatably connected to the lower end of the bottom plate.

The present invention makes improvements to the problems in the existing construction method that the jack lifts and assembles the prefabricated beams, the existing trolley needs to destroy the scaffold when driving the prefabricated beams to move, and the existing trolley is inconvenient to control, and has the following beneficial effects:

1. The lifting trolley is used instead of the jack, so that when the prefabricated beam is lifted and assembled, it can drive the prefabricated beam to move a larger distance, thereby improving the assembly efficiency;

2. The combination of two sets of power beams and fixed oil cylinders is used to replace the structure of the existing trolley that requires bolts to fix the hydraulic jacking device, which saves the disassembly and assembly process of fixing the hydraulic jacking device on the artificial frame and greatly saves man-hours. At the same time, it protects the scaffolding, so that the scaffolding can be used in turnaround, saving construction costs and realizing green construction;

3. The central control module and the remote control device are used to control the working states of each solenoid valve and oil pump in the present invention, so that it is more convenient for workers to control the assembly of the prefabricated beams.

The invention has a simple structure, is easy to operate, can effectively improve the efficiency of prefabricated beam assembling, can ensure the integrity of the artificial frame, is convenient for turnover and has strong practicability.

Description of drawings

FIG. 1 is a perspective schematic diagram 1 of the present invention.

FIG. 2 is a schematic left side view of the present invention.

FIG. 3 is a schematic front view of the model of the present invention for removing the dummy frame.

FIG. 4 is a schematic cross-sectional view 1 of the vertical oil cylinder and its related structures of the present invention.

FIG. 5 is a schematic partial three-dimensional cross-sectional view of the dynamic beam and its related structures of the present invention.

6 is a schematic cross-sectional view of the power beam and its related structures of the present invention.

FIG. 7 is a schematic partial cross-sectional view of a side beam and its related structures of the present invention.

FIG. 8 is a second perspective view of the present invention.

Fig. 9 is the working state of each solenoid valve of the present invention.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to FIGS. 1 to 9 . The structural contents mentioned in the following embodiments are all referenced to the accompanying drawings.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Embodiment 1, the present invention is a prefabricated beam-assisted lifting trolley, which is characterized in that it includes a bottom plate 1 of the trolley, and the lower end of the bottom plate 1 is rotatably connected with a traveling wheel, and during operation, the bottom plate 1 relies on the traveling wheel to travel on the scaffold. , the base plate 1 is the foundation of the device at the same time, and provides a fixed foundation for the subsequent structure, and the left and right sides of the base plate 1 are fixedly connected with a power device, and the power device is used to push the base plate 1 to walk on the dummy frame. The bottom plate 1 is fixedly connected with a middle plate 3, and the middle plate 3 is rotatably connected with a top plate 4. The bottom plate 1, the middle plate 3, and the top plate 4 constitute the bearing basic structure of the device, and provide a fixed basis for the subsequent structures at the same time. The top plate 4 is provided with two groups of lifting devices, and the two groups of the lifting devices are all communicated with the top plate oil pump 5 that is fixedly connected to the top plate 4. The device travels to improve flexibility, a diesel generator and a matching diesel tank 12 are fixedly connected to the bottom plate 1, and the top plate oil pump 5 is connected to the diesel generator and powered by the diesel generator;

The two groups of lifting devices include two vertical oil cylinders 6 that are slidably connected to the top plate 4 and a horizontal oil cylinder 7 that is fixedly connected to the top plate 4. The horizontal oil cylinder 7 is a double-rod oil cylinder and the horizontal oil cylinder 7 Both ends are fixedly connected with two vertical oil cylinders 6, two groups of four vertical oil cylinders 6 are used to lift and carry prefabricated beams, and a thick rubber gasket is fixedly connected to the upper end of the vertical oil cylinders 6 to prevent the prefabricated beams The collision damage caused by the contact of the vertical oil cylinder 6, the horizontal oil cylinder 7 is used to adjust the relative position of the two connected vertical oil cylinders 6, so that the device can use various prefabricated beams with different widths. The horizontal oil cylinder 7 described is a double-shaft oil cylinder, also known as a two-way oil cylinder, and filling or pumping oil can drive its two shafts to extend or retract synchronously, thereby realizing the synchronous adjustment of the two connected vertical oil cylinders 6. ;

Both of the two described power devices include a power oil cylinder 8 whose one end is fixedly connected to the bottom plate 1, the other end of the two described power oil cylinders 8 is fixedly connected with a power beam 9, and both sides of the two described power beams 9 are fixed. A fixed oil cylinder 10 is fixedly connected, and the fixed oil cylinder 10 at both ends of each power beam 9 is located between the upper and lower two wing plates of the corresponding I-beam. When the fixed oil cylinder 10 at both ends of the power beam 9 extends, the power beam 9 can be clamped. Tight on the dummy frame, so that the power beam 9 can be used as the force base of the power cylinder 8, so that the power cylinder 8 pushes the bottom plate 1 to move on the dummy frame on the basis of the power beam 9, in order to ensure the balance of the force, each power The beam 9 is fixedly connected with two power cylinders 8 whose other ends are fixedly connected to the base plate 1, that is, four power cylinders 8 are symmetrically connected on both sides of the base plate 1. The fixed oil cylinders 10 are all communicated with the bottom plate oil pump 11 that is fixedly connected to the bottom plate 1, the bottom plate oil pump 11 is electrically connected with the diesel generator, the bottom plate 1 is fixedly connected with an oil tank 12, and the top plate oil pump 5 Both the bottom plate oil pump 11 and the oil tank 12 are communicated with the oil tank 12 through the hose 28;

When the four vertical oil cylinders 6 carry the beam body, the weight of the device is relatively heavy. In order to disperse the pressure on the scaffold and to protect the trolley, the lower end of the bottom plate 1 is rotatably connected with a number of auxiliary wheels, thereby increasing the size of the device and the scaffold. The contact area of protects the walking wheel and the crane;

In the specific use of this embodiment, the user first places the trolley on the scaffold and adjusts the distance between the two connected vertical oil cylinders 6 through the top plate oil pump 5 and the horizontal oil cylinder 7 in advance, and then uses the gantry crane or crane to place the beam body. On the pre-placed support screw 20, the trolley is then controlled to travel to the desired position. Specifically, the bottom plate oil pump 11 can be controlled to first charge the left fixed oil cylinder 10 with oil, so as to press the left power beam 9 on the left side. Then, keep the oil pressure and fill the four power oil cylinders 8 on the left and right sides with oil. Also stretch out, when the power cylinder 8 on the left extends to the farthest position, the fixed cylinder 10 on the right stretches out to press the power beam 9 on the right on the bracket, while the fixed cylinder 10 on the left retracts, The power beam 9 on the left becomes active, and then the bottom plate oil pump 11 pumps oil to the four power oil pumps at the same time. When walking to the left, the reverse operation can be performed. When the trolley arrives at the required position, the vertical oil cylinder 6 is controlled by the top plate oil pump 5 to raise the beam body, and then the trolley is controlled to move to assemble the beam body and the previous beam body.

Embodiment 2, on the basis of Embodiment 1, the pipes connecting the top oil pump 5 and the two horizontal oil cylinders 7 are all provided with horizontal solenoid valves 13, and the top oil pump 5 and the four vertical oil cylinders are provided with horizontal solenoid valves 13. 6 The connected pipelines are all provided with vertical solenoid valves 14, that is, when the vertical oil cylinder 6 is required to work, the two horizontal solenoid valves 13 are closed, and the four vertical solenoid valves 14 are opened. The valve 13 is opened, and the four vertical solenoid valves 14 are closed;

The said bottom plate oil pump 11 and the two said power cylinders 8 are connected with the pipelines are provided with power solenoid valves 15, the two said power beams 9 are hollow beams and are connected with the corresponding fixed cylinders 10 and power cylinders. 8 is connected, and the connection between the power beam 9 and the corresponding fixed oil cylinder 10 is provided with a fixed solenoid valve 16, that is, when the fixed solenoid valve 16 needs to work, the power solenoid valve 15 is opened, and the hydraulic oil first fills the power beam 9, After that, the hydraulic oil is filled into the fixed oil cylinder 10 and the fixed oil cylinder 10 is extended. When the fixed oil cylinder 10 is extended, the fixed solenoid valve 16 is controlled to close, and the oil pressure in the fixed oil cylinder 10 is ensured at this time, thereby ensuring that the fixed oil cylinder 10 can be operated. The power beam 9 is fixed on the bracket, after that, the bottom plate oil pump 11 continues to fill the power beam 9 with oil and pushes the trolley to move through the power cylinder 8;

The top plate oil pump 5, the bottom plate oil pump 11, the horizontal solenoid valve 13, the power solenoid valve 15, and the fixed solenoid valve 16 are all electrically connected to the central control module 17 that is fixedly connected to the bottom plate 1. In the specific use of this embodiment, when the When the user needs the trolley to move, the bottom plate oil pump 11 is controlled to work, the bottom plate oil pump 11 fills the power beam 9 with oil, the hydraulic oil fills the power beam 9, and fills the fixed oil cylinder 10 to extend the fixed oil cylinder 10. When the fixed oil cylinder 10 extends, , the fixed solenoid valve 16 is closed, the bottom plate oil pump 11 continues to fill the power beam 9 with oil and pushes the trolley to move through the power cylinder 8. Because the size of the fixed oil cylinder 10 is constant, the fixed oil cylinder 10 is filled every time and the fixed oil cylinder 10 extends The clamping time of the power beam 9 is the same, so the fixed solenoid valve 16 is a normally closed delayed closing valve, that is, the fixed solenoid valve 16 is normally closed. When the time to open the fixed solenoid valve 16 reaches the preset value, the fixed solenoid valve 16 automatically closure;

When the vertical oil cylinder 6 needs to work, the two horizontal solenoid valves 13 are closed, the four vertical solenoid valves 14 are opened, and the top plate oil pump 5 fills or pumps oil to the vertical oil cylinder 6 and makes the vertical oil cylinder 6 extend or retract. When working, the two horizontal solenoid valves 13 are opened, the four vertical solenoid valves 14 are closed, and the top plate oil pump 5 fills or draws oil into the horizontal oil cylinder 7 and makes the horizontal oil cylinder 7 extend or contract.

Embodiment 3, on the basis of Embodiment 2, in order to further improve the convenience of the device, this embodiment provides a specific structure, so that the device has its own support screw 20 and makes the support screw 20 and the dummy frame when not needed. Out of contact so as not to affect the walking of the device, specifically, two side beams 18 are fixedly connected on both sides of the middle plate 3 respectively, and the heights of the four side beams 18 are higher than the upper part of the upper end wing plate of the artificial frame I-beam. On the end face, the four side beams 18 are slidably connected up and down with support bases 19 , and the four support bases 19 can be detachably connected with support screws 20 , and the support screws 20 can be pressed down to make the lower end surface of the support screws 20 . It is in contact with the upper end surface of the upper wing plate of the I-beam, and at the same time the support screw 20 is pressed down to drive the support seat 19 to move downward synchronously, and one side of the four support seats 19 is slidably connected to the corresponding side beams 18. The balance bar 21, the other end of the balance bar 21 is slidably connected to a balance platform 22 that is slidably connected to the corresponding side beams 18, and the four balance platforms 22 are connected to the corresponding side beams 18 through springs, When the beam body is placed on the support screw 20, the support screw 20 is pressed down by force, and the lower end of the support screw is in contact with the I-beam of the artificial frame to support the beam body. Under the action of the balance rod 21, the balance platform 22 is lifted and the spring is compressed. When the beam body is lifted by the vertical oil cylinder 6, under the action of the spring, the balance platform 22 is pressed down, and the support seat 19 is under the action of the balance rod 21. Being lifted, the support screw 20 and the I-beam are out of contact, which does not affect the walking of the trolley. The lower ends of the four described balance platforms 22 are all fixedly connected with bull's eye rollers, and the setting of the bull's eye rollers can make the side beams 18 better. Walking on the artificial I-beam, when the present embodiment is used specifically, when the beam body is placed on the support screw 20, the support screw 20 is pressed down by force, and its lower end is in contact with the artificial I-beam and thereby the beam is placed on the support screw 20. The beam body is supported, and the support screw 20 is pressed down to drive the support seat 19 to move downward. Under the action of the balance rod 21, the balance platform 22 is lifted and the spring is compressed, and the bull's eye roller and the I-beam are out of contact. When being held up by the vertical oil cylinder 6, under the action of the spring, the balance platform 22 is pressed down, the bull's eye roller contacts the I-beam of the dummy frame, the support seat 19 is lifted under the action of the balance rod 21, and the support screw 20 and the dummy frame are lifted. The frame I-beam is out of contact, which is convenient for the trolley to walk. It should be noted that the height of the upper end surface of the support screw 20 is higher than the height of the upper end surface of the vertical oil cylinder 6 when it shrinks.

Embodiment 4, on the basis of Embodiment 1, because the gantry crane or crane is difficult to ensure that the beam body does not swing and is placed on the support stud during the process of hoisting and transporting the beam body, in order to ensure that the beam body is placed on the gantry crane or crane. When placed on the support stud, it does not deflect. This embodiment provides a specific structure. Specifically, both 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 fixed. An arc-shaped plate 24 is connected, the radius and the central angle of the two arc-shaped plates 24 are the same, and a number of correction steel balls 25 are rotatably connected on the two arc-shaped plates 24. When the beam body is lowered, the correction cylinder is first 23 rises, the lower end face of the beam body contacts the arc plate 24 and the straightening steel ball 25 on it, the lower end face of the beam body slides along the straightening steel ball 25, the two opposite arc-shaped plates 24 and the straightening steel ball 25 on it The arc surface of the lower end of the guide beam body is straightened, and under the action of the straightening steel ball 25 on the arc plate 24, the axis line of the beam body and the axis line of the arc plate 24 are coplanar and the surface is perpendicular to the horizontal plane;

The two described straightening oil cylinders 23 are both communicated with the bottom plate oil pump 11 through pipelines, and the two described straightening oil cylinders 23 and the bottom plate oil pump 11 are connected with each other in the pipelines are provided with straightening solenoid valves 2, and the straightening solenoid valves 2 and all The central control module 17 is electrically connected. In the specific use of this embodiment, before the beam body is placed on the support screw 20, the straightening solenoid valve 2 is controlled to open, the power solenoid valve 15 is closed, and the bottom plate oil pump 11 works to correct the oil cylinder 23 liters. Then, the gantry crane or hoist lowers the beam body, and the lower end surface of the beam body contacts the arc-shaped plate 24. Under the action of the straightening steel ball 25 on the arc-shaped plate 24, the beam body is straightened, and then the straightening oil cylinder 23 is retracted, and the The beam body is placed on the support screw 20. In order to prevent the beam body from causing damage to the straightening oil cylinder 23 during the straightening process, after the straightening oil cylinder 23 extends to the highest point, the straightening solenoid valve 2 is controlled to be slightly closed, so that the straightening oil cylinder 23 and the bottom plate are closed. The diameter of the pipeline connected to the oil pump 11 becomes smaller, and then cooperates with the viscous hydraulic oil to form a temporary damper, which buffers the impact of the falling beam body on the correction cylinder 23. Therefore, this embodiment only serves to fine-tune the end of the deflection of the beam body, so the arc-shaped plate 24 and the correcting steel ball 25 are sufficient to realize the fine-tuning of the deflection of the beam body.

Embodiment 5, on the basis of Embodiment 2, the lower ends of the four described vertical oil cylinders 6 are all fixedly connected with bull's eye rollers, and the setting of the bull's eye roller is convenient for the vertical oil cylinder 6 to move on the top plate 4, and at the same time, in the vertical oil cylinder 6 When carrying the beam body, the bull's eye roller can also provide better support for the vertical oil cylinder 6 .

Embodiment 6, on the basis of Embodiment 2, the lower ends of the four described fixed oil cylinders 10 are all rotatably connected with wheels 26, and the setting of the wheels 26 makes the bottom plate 1 move and drive the power beam 9 to move, the power beam 9 can be moved. Better to move on the pedestal.

Embodiment 7, on the basis of Embodiment 1, the rotary oil cylinder 27 is fixedly connected to the middle plate 3, the top plate 4 is fixedly connected to the upper end of the rotary oil cylinder 27, the rotary oil cylinder 27 and the oil tank are fixedly connected. 12 is connected, the rotary oil cylinder 27 is electrically connected with the diesel generator, the setting of the rotary oil cylinder 27 makes the rotation of the top plate 4 controllable, after the vertical oil cylinder 6 carries the beam body, the rotary oil cylinder 27 can drive the top plate 4 to rotate, and then The beam body is driven to rotate, so as to realize the fine adjustment of the beam body. This setting is mainly used to ensure that the device can still connect the beam body to the previous beam body when the correcting oil cylinder 23 fails.

Embodiment 8, on the basis of Embodiment 2, the central control module 17 includes a solenoid valve control unit, a signal processing unit, a wireless signal transceiver unit, the solenoid valve control unit and the horizontal solenoid valve 13, The vertical solenoid valve 14, the power solenoid valve 15, the fixed solenoid valve 16, and the correction solenoid valve 2 are all electrically connected and can control the opening and closing of each solenoid valve. The wireless signal transceiver unit can be connected to the wireless remote control device through wireless signals, so that The user can control the operation of the device through the wireless remote control device. The signal processing unit is used to process the signal received by the wireless signal transceiver unit and control the opening and closing of each solenoid valve through the solenoid valve control unit after processing the received signal.

In the ninth embodiment, on the basis of any one of the first to eighth embodiments, two of the prefabricated beam auxiliary lifting trolleys are in a group, and the central control modules 17 of the two prefabricated beam auxiliary lifting trolleys are wirelessly connected to each other. External remote control device, the setting of this embodiment is to improve the stability of the device. The two trolleys are placed at both ends of the beam body, which is convenient for better and more stable support and splicing of the beam body. At the same time, the two trolleys work synchronously. So that the straightening cylinder 23 can be better corrected when correcting the beam body, that is, if the beam body is deflected to one side during the lowering process, when the lower end surface of the beam body contacts the straightening cylinder 23, the two trolleys are in contact with each other. Therefore, under the action of the arc plate 24 and the straightening steel ball 25, the lower end of the beam body slides a small distance in the middle of the arc plate 24, so as to better play a correcting role.

In the specific use of the present invention, the user first controls the device to the required position, specifically, controls the bottom plate oil pump 11 to work, the bottom plate oil pump 11 fills the power beam 9 with oil, and the hydraulic oil fills the power beam 9 and fills the fixed oil cylinder 10 The fixed oil cylinder 10 is extended. When the fixed oil cylinder 10 is extended, the fixed solenoid valve 16 is closed, and the bottom plate oil pump 11 continues to fill the power beam 9 with oil and pushes the trolley to move through the power oil cylinder 8. Because the size of the fixed oil cylinder 10 is constant, every It takes the same time to fill the fixed oil cylinder 10 and extend the fixed oil cylinder 10 to clamp the power beam 9. Therefore, the fixed solenoid valve 16 is a normally closed delayed closing valve, that is, the fixed solenoid valve 16 is normally closed. When the valve 16 time reaches the preset value, the fixed solenoid valve 16 is automatically closed;

In adjusting the distance between the vertical oil cylinders 6, specifically, two horizontal solenoid valves 13 are controlled to open, four vertical solenoid valves 14 are closed, and the top plate oil pump 5 fills or pulls oil into the horizontal oil cylinder 7 and makes the horizontal oil cylinder 7 extend. or shrink;

After that, control the rectification solenoid valve 2 to open, the power solenoid valve 15 to close, the bottom plate oil pump 11 works to lift the rectification cylinder 23, after that, the control rectification solenoid valve 2 is slightly closed, and then the gantry crane or hoist lowers the beam body, and the lower end surface of the beam body Contacting the arc-shaped plate 24, under the action of the straightening steel ball 25 on the arc-shaped plate 24, the beam body is straightened, and the slightly closed straightening solenoid valve 2 reduces the diameter of the pipe connecting the straightening oil cylinder 23 and the bottom plate oil pump 11, Combined with viscous hydraulic oil, a temporary damper is formed to buffer the impact of the falling beam body on the straightening cylinder 23;

Then control the vertical oil cylinder 6 to work, specifically, control two horizontal solenoid valves 13 to close, four vertical solenoid valves 14 to open, and the top plate oil pump 5 fills or pumps oil to the vertical oil cylinder 6 and makes the vertical oil cylinder 6 extend or shrink;

When the beam body is placed on the support screw 20, the support screw 20 is pressed down by force, and the lower end of the support screw is in contact with the I-beam of the artificial frame to support the beam body. Under the action of the balance bar 21, the balance platform 22 is lifted and the spring is compressed, and the bull's eye roller and the I-beam are out of contact. Press, the bull's-eye roller contacts with the I-beam of the frame, the support base 19 is lifted under the action of the balance bar 21, and the support screw 20 and the I-beam of the frame are out of contact, which is convenient for the trolley to travel, and then controls the trolley to travel to the beam body. It can be docked with the previous beam.

The present invention makes improvements to the problems in the existing construction method that the jack lifts and assembles the prefabricated beams, the existing trolley needs to destroy the scaffold when driving the prefabricated beams to move, and the existing trolley is inconvenient to control, and has the following beneficial effects:

1. The lifting trolley is used instead of the jack, so that when the prefabricated beam is lifted and assembled, it can drive the prefabricated beam to move a larger distance, thereby improving the assembly efficiency;

2. The combination of two sets of power beams and fixed oil cylinders is used to replace the structure of the existing trolley that requires bolts to fix the hydraulic jacking device, which saves the disassembly and assembly process of fixing the hydraulic jacking device on the artificial frame and greatly saves man-hours. At the same time, it protects the scaffolding, so that the scaffolding can be used in turnaround, saving construction costs and realizing green construction;

3. The central control module and the remote control device are used to control the working states of each solenoid valve and oil pump in the present invention, so that it is more convenient for workers to control the assembly of the prefabricated beams.

The invention has a simple structure, is easy to operate, can effectively improve the efficiency of prefabricated beam assembling, can ensure the integrity of the artificial frame, is convenient for turnover and has strong practicability.

Claims (8)

1. The prefabricated beam-assisted lifting trolley is characterized in that it includes a bottom plate (1) of the trolley, the left and right sides of the bottom plate (1) are fixedly connected with power devices, and the bottom plate (1) is fixedly connected with a middle Plate (3), a top plate (4) is rotatably connected to the middle plate (3), and two sets of lifting devices are arranged on the top plate (4), and the two sets of lifting devices are fixedly connected to each other. The top plate oil pump (5) on the top plate (4) is connected; The two sets of lifting devices each include two vertical oil cylinders (6) slidably connected to the top plate (4) and one horizontal oil cylinder (7) fixedly connected to the top plate (4). ) is a double-rod oil cylinder and both ends of the horizontal oil cylinder (7) are fixedly connected to the two vertical oil cylinders (6) respectively; Both of the two described power devices include a power oil cylinder (8) whose one end is fixedly connected to the base plate (1), the other end of the two described power oil cylinders (8) is fixedly connected with a power beam (9), and the two Both sides of the power beam (9) are fixedly connected with fixed oil cylinders (10), and the two power oil cylinders (8) and the four fixed oil cylinders (10) are all fixedly connected to the base plate (1). The bottom plate oil pump (11) is connected to the bottom plate, 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); A horizontal solenoid valve (13) is provided at the pipeline connecting the top oil pump (5) and the two horizontal oil cylinders (7), and the top oil pump (5) is communicated with the four vertical oil cylinders (6) Vertical solenoid valves (14) are provided at the pipelines of the A power solenoid valve (15) is provided at the pipeline connecting the bottom plate oil pump (11) and the two power oil cylinders (8); The two power beams (9) are hollow beams and are both communicated with the corresponding fixed oil cylinder (10) and the power oil cylinder (8), and the power beam (9) is connected with the corresponding fixed oil cylinder (10). Both are provided with a fixed solenoid valve (16); The top plate oil pump (5), the bottom plate oil pump (11), the horizontal solenoid valve (13), the power solenoid valve (15), and the fixed solenoid valve (16) are all connected to the central control module (1) fixedly connected to the bottom plate (1). 17) Electrical connection; Two side beams (18) are fixedly connected on both sides of the middle plate (3) respectively, and support seats (19) are slidably connected up and down on the four side beams (18). A support screw (20) can be detachably connected to the seat (19), and one side of the four support seats (19) is slidably connected with a balance rod (21) that is rotatably connected to the corresponding side beam (18), so The other end of the balance rod (21) is slidably connected with a balance platform (22) which is slidably connected up and down on the corresponding side beams (18). 18) are connected, and the lower ends of the four balance platforms (22) are fixedly connected with bulls-eye rollers. 2. The prefabricated beam-assisted lifting trolley according to claim 1, characterized in that both sides of the middle plate (3) are fixedly connected with straightening oil cylinders (23), and the two straightening oil cylinders (23) The upper ends are fixedly connected with arc-shaped plates (24); The two straightening oil cylinders (23) are both communicated with the bottom plate oil pump (11) through a pipeline, and a straightening solenoid valve (2) is provided at the pipeline where the two straightening oil cylinders (23) and the bottom plate oil pump (11) communicate with each other. , the straightening solenoid valve (2) is electrically connected with the central control module (17). 3 . The prefabricated beam-assisted lifting trolley according to claim 2 , characterized in that a plurality of straightening steel balls ( 25 ) are rotatably connected to the two arc-shaped plates ( 24 ). 4 . 4 . The prefabricated beam-assisted lifting trolley according to claim 1 , wherein the lower ends of the four vertical oil cylinders ( 6 ) are fixedly connected with bulls-eye rollers. 5 . 5. The prefabricated beam-assisted lifting trolley according to claim 1, characterized in that, wheels (26) are rotatably connected to the lower ends of the four fixed oil cylinders (10). 6. The prefabricated beam auxiliary lifting trolley according to claim 1, characterized in that a rotary oil cylinder (27) is fixedly connected to the middle plate (3), and a rotary oil cylinder (27) is fixedly connected to the upper end of the rotary oil cylinder (27). The top plate (4), the rotary oil cylinder (27) communicate with the oil tank (12). 7 . The prefabricated beam-assisted lifting trolley according to claim 1 , wherein the central control module ( 17 ) comprises a solenoid valve control unit, a signal processing unit, and a wireless signal transceiver unit. 8 . 8. The prefabricated beam auxiliary lifting trolley according to any one of claims 1-7, wherein two of the prefabricated beam auxiliary lifting trolleys are in a group, and two of the prefabricated beam auxiliary lifting trolleys The central control module (17) is wirelessly connected with an external remote control device.

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