Automatic hoisting machine for assisting installation of fabricated bridge deck prefabricated parts

Abstract

The invention relates to the technical field of hoisting equipment, and particularly discloses an automatic hoisting machine for assisting installation of an assembled bridge floor prefabricated component, the automatic hoisting machine comprises a rack and a hoisting driving unit arranged on the rack, the hoisting driving unit comprises a driving assembly and a positioning assembly used for positioning the driving assembly, a hole aligning hoisting unit, a locking reinforcing unit and a self-leveling mortise lock unit used for adjusting the prefabricated part to be in a horizontal state are arranged at the bottom of the driving assembly, and the self-leveling mortise lock unit is arranged, so that a leveling plate is always tightly attached to a leveling column in the process that the prefabricated part moves towards an installation position; meanwhile, a locking rod is inserted into a locking hole in a limiting insertion block all the time to lock and limit the prefabricated part, so that the prefabricated part is prevented from inclining in the process of moving to the mounting position, and then frequent leveling operation is not needed after the prefabricated part moves to the mounting position; and the hoisting installation efficiency of the prefabricated part is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and more specifically, to an automatic hoisting machine for assisting the installation of prefabricated components of assembled bridge decks. Background Art

[0002] Prefabricated bridge deck is a modern bridge structure, which is characterized by the fact that all components of the bridge deck are prefabricated in the factory and then transported to the construction site for assembly. The prefabricated cable trough of the bridge deck structure is part of the prefabricated bridge deck, which is used to install and protect cables. The cable trough usually adopts a "mountain" shaped cross-section design to accommodate strong and weak current cables respectively, and provide sufficient space between the walls on both sides of the bridge deck, while facilitating maintenance and inspection.

[0003] A Chinese invention patent with publication number CN118065249A discloses an installation device and method for prefabricated components of an assembled bridge deck system. The device includes a fixed portal frame and a movable portal frame. The fixed portal frame includes an outer column top cross beam, and the movable portal frame includes a folding column top cross beam. The outer column top cross beam is connected to the folding column top cross beam. The invention combines the setting of multiple laser sensors to reduce the difficulty of aligning prefabricated components and improve the installation positioning accuracy.

[0004] However, the above design still has shortcomings:

[0005] Firstly, when the equipment controls the moving trolley to drive the prefabricated components to move to the installation position, the prefabricated components are not fixed. If the moving trolley moves at a fast speed, the prefabricated components will shake slightly due to inertia when they stop, thus affecting the levelness. As a result, it is necessary to frequently adjust the levelness of the prefabricated components through the inclination sensor, so that the overall lifting efficiency of the prefabricated components needs to be improved.

[0006] Secondly, the equipment realizes the lifting of prefabricated components by controlling the synchronous operation of four winches. However, in actual operation, it is difficult to synchronize the four winches, and there will be a certain degree of synchronization difference, which will cause the prefabricated components to tilt to a certain extent during the lifting process. Summary of the invention

[0007] The present invention provides an automatic hoisting machine for assisting the installation of prefabricated components of assembled bridge decks, which solves the technical problem in the related art that the horizontality of prefabricated components needs to be frequently adjusted by using an inclination sensor during the hoisting process.

[0008] The present invention provides an automatic hoisting machine for assisting the installation of prefabricated components of assembled bridge decks, comprising a frame and a hoisting drive unit arranged on the frame, wherein the hoisting drive unit comprises a driving component and a positioning component for positioning the driving component, a hole hoisting unit, a locking reinforcement unit and a self-leveling latch unit for adjusting the prefabricated components to a horizontal state are arranged at the bottom of the driving component, and the self-leveling latch unit comprises a leveling locking component and a control component for controlling the leveling locking component to lock the prefabricated components.

[0009] The leveling locking assembly includes a leveling column with a plurality of limit slots at the bottom, an installation cavity and a leveling plate formed in the leveling column, a plurality of reset springs distributed in a square shape and corresponding to the limit slots are fixedly installed on the inner wall of the installation cavity, a control board is fixedly installed on the other end of the reset spring, a locking rod that slides through the inner wall of the installation cavity is fixedly installed on the side of the control board close to the inner wall of the installation cavity, a limit plug that matches the limit slots is fixedly installed on the top of the leveling plate, and a locking hole that matches the locking rod is provided on the side of the limit plug close to the locking rod.

[0010] As the prefabricated component is hoisted, the leveling plate rises to drive the limit plug to be inserted into and pressed against the limit slot, so that the prefabricated component is adjusted to a horizontal state and limited. Then the control component controls the locking rod to be inserted into the locking hole, and the limit plug is locked and limited in the vertical direction, so that the prefabricated component is locked and limited in all directions after being leveled.

[0011] Furthermore, the locking reinforcement unit includes two pairs of hinged seats fixedly installed on the side close to the two lifting frames and locking reinforcement rods hinged on the hinged seats. The four hinged seats are distributed in a square shape. Locking grooves are provided on the locking reinforcement rods, and the locking reinforcement rods are alternately arranged up and down. During lifting, the four locking reinforcement rods are locked by locking rods and locking grooves, and the leveling plate is fixedly installed on the top of the locking rods.

[0012] Furthermore, the frame includes a base frame and two H-shaped gantries fixedly installed on the top of the base frame and symmetrically arranged on the left and right. The two H-shaped gantries are connected by a plurality of connecting beams, and cross beams are fixedly installed on the tops of the two H-shaped gantries.

[0013] Furthermore, the driving assembly includes a top guide rail fixedly installed on the top of the cross beam and a traveling crane carriage slidably connected to the outside of the top guide rail. Two I-beams symmetrically installed front and back are commonly installed on the top of the two traveling crane carriages. An axle seat is fixedly installed on the top of the I-beam, and a rotating shaft is commonly installed between the two axle seats. Two steel wire drums are fixedly sleeved on the outside of the rotating shaft.

[0014] Furthermore, the circumferential outer wall of the wire drum has a lifting rope wound around it in the counterclockwise direction and a lifting rope wound around it in the clockwise direction, a lifting plate is fixedly installed at the bottom of the lifting rope, a supporting plate is jointly installed at the bottom of the two I-beams, and a lifting drive motor with an output shaft fixedly connected to the rotating shaft is fixedly installed on the top of the supporting plate.

[0015] Furthermore, the leveling column is fixedly installed at the bottom of the support plate, a plurality of limit grooves are opened on the inner wall of the installation cavity, and a limit rod slidably connected to the limit groove is fixedly installed on the side of the control plate close to the inner wall of the installation cavity. The control component includes an electric push rod fixedly installed on the top inner wall of the installation cavity and an extrusion block fixedly installed on the output end of the electric push rod. The bottom of the extrusion block is square cone-shaped, and the control plate is inclined on the side close to the extrusion block and cooperates with the conical surface of the bottom of the extrusion block.

[0016] Furthermore, the lifting drive unit also includes an adjustment component, which includes two adjustment guide rails fixedly installed on one side of the I-beam close to the lifting rope and symmetrically on the left and right. An adjustment slider is slidably connected to the adjustment guide rails. An adjustment shaft is commonly installed between the adjustment sliders on the same side of the two I-beams. Two fixed pulleys are fixedly installed on the outside of the adjustment shaft symmetrically in front and behind. The lifting ropes on the left and right sides are respectively wrapped around the outside of the corresponding fixed pulleys on the left and right sides.

[0017] Furthermore, the hole-matching lifting unit includes two lifting frames fixedly installed on the bottom of the two left hanging plates and the bottom of the two right hanging plates respectively, and two pairs of slide grooves opened on the lifting frames and symmetrical front and back, a T-shaped plate is slidably connected between the same pair of slide grooves, a cylinder is hinged between the two T-shaped plates, the front T-shaped plate is hinged to the output end of the cylinder, and the rear T-shaped plate is hinged to the cylinder body, a lifting rod is fixedly installed on the bottom of the T-shaped plate, and a number of lifting holes that cooperate with the lifting rod through lifting pins are opened on the front and rear sides of the prefabricated components.

[0018] Furthermore, the positioning assembly includes a positioning pin driving cylinder fixedly installed on the side of the traveling crane vehicle away from the lifting drive motor and with a positioning pin fixedly installed on the output end, and two positioning plates with positioning holes and cooperating with the positioning pins are fixedly installed on the side of the beam away from the lifting drive motor.

[0019] Furthermore, an extension frame is fixedly installed at the bottom of the crossbeam, an extended hydraulic support leg is fixedly installed at the bottom of the extension frame, two electric steering wheels symmetrically installed on the left and right and four integrated hydraulic support legs distributed in a square are fixedly installed on the base frame, and a hydraulic station and an integrated diesel generator for power supply are fixedly installed on the right side of the base frame.

[0020] The beneficial effects of the present invention are:

[0021] 1. By setting a self-leveling locking unit, when the prefabricated component moves to the installation position, the leveling plate and the leveling column are always in close contact, and the locking rod is always inserted into the locking hole on the limit plug to lock and limit the prefabricated component, thereby preventing the prefabricated component from tilting during the movement to the installation position. After the prefabricated component is moved to the installation position, there is no need to perform leveling operations frequently, which greatly improves the hoisting and installation efficiency of the prefabricated component.

[0022] 2. The four lifting ropes are driven downward synchronously by the lifting drive motor, so that the prefabricated components can always be moved downward to the installation position in a horizontal posture during the lifting and installation process, thereby avoiding the prefabricated components from tilting during the lowering process, and eliminating the need for frequent leveling operations, which greatly improves the lifting and installation efficiency and installation accuracy of the prefabricated components.

[0023] 3. By rotating the locking reinforcement rods, making them close to each other and staggered and inserting the locking rods, a more stable frame structure is formed, which not only enhances the strength of the lifting frame itself, but also further consolidates the connection between the left and right lifting frames. The locked lifting frame can better withstand the force generated during the lifting process, thereby ensuring the safety and stability of the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the base frame, H-shaped portal frame, connecting beam, cross beam and electric steering wheel of the present invention.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjusting guide rail, adjusting slider, adjusting shaft and fixed pulley part of the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the shaft seat, rotating shaft, wire drum, lifting rope, supporting plate and lifting drive motor part of the present invention.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the hinge seat, locking reinforcement rod, locking groove and locking insertion rod part of the present invention.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the hanging plate, hanging frame, cylinder, T-shaped plate and slide groove part of the present invention.

[0030] Figure 7 It is a partial three-dimensional structural sectional view of the leveling column, the installation cavity, the return spring, the control plate, the locking rod and the limiting rod of the present invention.

[0031] Figure 8It is a partial three-dimensional structural schematic diagram of the leveling plate, the limiting plug block and the electric push rod extrusion block of the present invention.

[0032] Fig. 9 It is a working state diagram of the prefabricated component of the present invention when it is hoisted to the installation position.

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the wire drum and the suspension rope part of the present invention.

[0034] In the figure: 1, frame; 101, base frame; 102, H-shaped door frame; 103, connecting beam; 104, cross beam; 2, lifting drive unit; 201, drive assembly; 202, positioning assembly; 203, adjustment assembly; 2011, top guide rail; 2012, traveling crane carriage; 2013, I-beam; 2014, axle seat; 2015, rotating shaft; 2016, wire drum; 2017, lifting rope; 2018, support plate; 2019, lifting drive motor; 2010, hanging plate; 2021, positioning pin driving cylinder; 2022, positioning plate; 2031, adjusting guide rail; 2032, adjusting slider; 2033, adjusting rotating shaft; 2034, fixed pulley; 3, self-leveling latch unit; 4, locking reinforcement unit; 5, hole lifting unit; 6, extension frame; 7 , extended hydraulic outriggers; 8, electric steering wheel; 9, integrated hydraulic outriggers; 10, integrated diesel generator; 11, hydraulic station; 12, prefabricated components; 301, leveling locking assembly; 302, control assembly; 3011, leveling column; 3012, installation cavity; 3013, return spring; 3014, control board; 3015, locking rod; 3016, limit rod; 3017, leveling plate; 3018, limit plug; 3019, limit slot; 3021, electric push rod; 3022, extrusion block; 401, hinged seat; 402, locking reinforcement rod; 403, locking groove; 404, locking plug; 501, lifting frame; 502, slide; 503, T-plate; 504, cylinder; 505, lifting rod; 506, lifting pin; 507, lifting hole. DETAILED DESCRIPTION

[0035] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0036] See also Figure 1 , Figure 2 , Figure 7 and Fig. 9In this embodiment, an automatic hoisting machine for assisting the installation of prefabricated components of assembled bridge decks is proposed, including a frame 1 and a hoisting drive unit 2 arranged on the frame 1, the hoisting drive unit 2 includes a driving component 201, a positioning component 202 for positioning the driving component 201, a hole hoisting unit 5, a locking reinforcement unit 4 and a self-leveling latch unit 3 for adjusting the prefabricated component 12 to a horizontal state are arranged at the bottom of the driving component 201, the self-leveling latch unit 3 includes a leveling locking component 301 and a control component 302 for controlling the leveling locking component 301 to lock the prefabricated component 12, and a plurality of hoisting holes 507 are opened on both the front and rear sides of the prefabricated component 12.

[0037] See also Figure 1 , Figure 2 and Fig. 9 The frame 1 includes a base frame 101 and two H-shaped portal frames 102 fixedly installed on the top of the base frame 101 and symmetrical to the left and right. The two H-shaped portal frames 102 are connected by a plurality of connecting beams 103, and a cross beam 104 is fixedly installed on the top of the two H-shaped portal frames 102. An extension frame 6 is fixedly installed on the bottom of the cross beam 104, and an extended hydraulic support leg 7 is fixedly installed on the bottom of the extension frame 6. Two electric steering wheels 8 symmetrical to the left and right and four integrated hydraulic support legs 9 distributed in a square are fixedly installed on the base frame 101. A hydraulic station 11 and an integrated diesel generator 10 for power supply are fixedly installed on the right side of the base frame 101.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Fig.10 The driving assembly 201 includes a top guide rail 2011 fixedly installed on the top of the crossbeam 104 and a traveling crane carriage 2012 slidably connected to the outside of the top guide rail 2011. Two front-to-back symmetrical I-beams 2013 are installed on the top of the two traveling crane carriages 2012. An axle seat 2014 is fixedly installed on the top of the I-beam 2013. A rotating shaft 2015 is installed between the two axle seats 2014. Two wire drums 2016 are fixedly sleeved on the outside of the rotating shaft 2015.

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The outer circumferential wall of the wire drum 2016 is respectively wound with a lifting rope 2017 in the counterclockwise direction and a lifting rope 2017 in the clockwise direction, a lifting plate 2010 is fixedly installed at the bottom of the lifting rope 2017, a supporting plate 2018 is jointly installed at the bottom of the two I-beams 2013, and a lifting drive motor 2019 is fixedly installed on the top of the supporting plate 2018, the output shaft and the rotating shaft 2015 are fixedly connected.

[0040] See also Figure 1 and Figure 2 The positioning assembly 202 includes a positioning pin driving cylinder 2021 which is fixedly installed on the side of the traveling crane carriage 2012 away from the lifting drive motor 2019 and has a positioning pin fixedly installed on the output end. The side of the beam 104 away from the lifting drive motor 2019 has two positioning plates 2022 with positioning holes and matched with the positioning pins.

[0041] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The hoisting drive unit 2 also includes an adjustment component 203, which includes two adjustment rails 2031 fixedly installed on one side of the I-beam 2013 close to the lifting rope 2017 and symmetrically on the left and right. An adjustment slider 2032 is slidably connected to the adjustment rail 2031. An adjustment shaft 2033 is commonly installed between the adjustment sliders 2032 on the same side of the two I-beams 2013. Two fixed pulleys 2034 symmetrically installed front and back are fixedly installed on the outer side of the adjustment shaft 2033. The lifting ropes 2017 on the left and right sides are respectively wound around the outer sides of the corresponding fixed pulleys 2034 on the left and right sides.

[0042] During specific use, the frame 1 is moved through the left opening of the base frame 101 to the top of the prefabricated component 12 and the integrated hydraulic support legs 9 and the extended hydraulic support legs 7 are controlled to extend to lift the electric steering wheel 8, thereby fixing the frame 1. Next, the lifting drive motor 2019 is started to drive the rotating shaft 2015 to rotate, thereby driving the two wire drums 2016 to rotate counterclockwise, and then the lifting rope 2017 is lowered, driving the hole lifting unit 5 to move downward until the hole lifting unit 5 corresponds to the lifting hole 507 on the prefabricated component 12, and then the operation of the lifting drive motor 2019 is stopped. Next, the hole lifting unit 5 is docked and installed with the prefabricated component 12. After the installation is completed, the lifting drive motor 2019 is started to drive the rotating shaft 2015 to rotate, thereby driving the two wire drums 2016 to rotate clockwise, and then the lifting rope 2017 drives the hole lifting unit 5 to rise, thereby lifting the prefabricated component 12.

[0043] After the installation is completed, the left and right hangers are locked and reinforced by the locking and reinforcing unit 4, and then the lifting drive motor 2019 is started to drive the rotating shaft 2015 to rotate, thereby driving the two wire drums 2016 to rotate clockwise, and then the lifting rope 2017 drives the hole lifting unit 5 to rise, thereby lifting the prefabricated component 12 until the locking and reinforcing unit 4 is in contact with the self-leveling locking unit 3. Under the action of the self-leveling locking unit 3, the prefabricated component 12 is adjusted to a horizontal state and locked.

[0044] After the prefabricated component 12 is adjusted to a horizontal state and locked, the integrated hydraulic support leg 9 and the extended hydraulic support leg 7 are controlled to retract until the electric steering wheel 8 contacts the bridge deck. Then, the electric steering wheel 8 drives the frame 1 to move to the installation area of ​​the prefabricated component 12 and controls the integrated hydraulic support leg 9 and the extended hydraulic support leg 7 to extend and lift the electric steering wheel 8. Since there is a prefabricated component 12 installed under one of the extended hydraulic support legs 7, the extended hydraulic support leg 7 falls on the plane of the installed prefabricated component 12, and the other extended hydraulic support leg 7 falls on the bridge deck (such as Fig. 9 As shown), the frame 1 is fixed, and then the traveling crane 2012 is controlled to move forward and the positioning pin is driven by the output end of the oil cylinder 2021 to push the positioning pin into the corresponding positioning hole for positioning, thereby forming a stable gantry type traveling crane structure, which greatly improves the stability of the traveling crane 2012, and then the prefabricated component 12 is hoisted and moved to just above the installation position. At the same time, during the forward movement of the traveling crane 2012, the self-leveling latch unit 3 always locks and limits the prefabricated component 12, thereby preventing the prefabricated component 12 from tilting during the movement to the installation position.

[0045] Next, the hoisting drive motor 2019 is started to drive the rotating shaft 2015 to rotate, thereby driving the two wire drums 2016 to rotate counterclockwise, thereby lowering the lifting rope 2017, thereby driving the hole hoisting unit 5 to move downward, and then driving the prefabricated component 12 adjusted to a horizontal state to move downward and fall to the installation position. At the same time, since the hoisting drive motor 2019 synchronously drives the four hoisting ropes to be lowered, the prefabricated component 12 can always move downward to the installation position in a horizontal posture, thereby avoiding the prefabricated component 12 from tilting during the lowering process, and there is no need for frequent leveling operations, which greatly improves the hoisting and installation efficiency of the prefabricated component 12. Then the hoisting drive motor 2019 is stopped and the prefabricated component 12 is installed at the installation position. After installation, the hole hoisting unit 5 is controlled to release the fixation of the prefabricated component 12, and then the integrated hydraulic support leg 9 and the extended hydraulic support leg 7 are retracted, and the electric steering wheel 8 drives the frame 1 to move into the next operation cycle.

[0046] When it is necessary to adjust the hole hoisting unit 5 according to the position of the hoisting hole 507 on the prefabricated component 12, the adjustment slider 2032 is controlled to move along the adjustment guide rail 2031, thereby moving the position of the adjustment shaft 2033, and then driving the fixed pulley 2034 to move, so as to adjust the position of the hole hoisting unit 5. During the adjustment process, the wire drum 2016 is synchronously controlled to rotate and the hoisting rope 2017 is controlled to contract, so as to maintain the height position of the hole hoisting unit 5.

[0047] See also Figure 4 , Figure 5 and Figure 6The hole-matching hoisting unit 5 includes two hoisting frames 501 respectively fixedly installed on the bottom of the two left hanging plates 2010 and the bottom of the two right hanging plates 2010, and two pairs of slide grooves 502 opened on the hoisting frames 501 and symmetrical front and back, a T-shaped plate 503 is slidably connected between the same pair of slide grooves 502, and a cylinder 504 is hinged between the two T-shaped plates 503. The front T-shaped plate 503 is hinged to the output end of the cylinder 504, and the rear T-shaped plate 503 is hinged to the cylinder body of the cylinder 504. A hoisting rod 505 is fixedly installed at the bottom of the T-shaped plate 503, and a socket matching the hoisting hole 507 is opened on the hoisting rod 505, and the socket and the hoisting hole 507 are matched and installed through a hoisting pin shaft 506.

[0048] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 The locking reinforcement unit 4 includes two pairs of hinged seats 401 fixedly installed on the side close to the two hanging frames 501 and locking reinforcement rods 402 hinged on the hinged seats 401. The four hinged seats 401 are distributed in a square shape. Locking grooves 403 are provided on the locking reinforcement rods 402, and the locking reinforcement rods 402 are alternately arranged up and down. When hanging, the four locking reinforcement rods 402 are locked by locking rods 404 and locking grooves 403. The outer side of the locking rods 404 is provided with external threads.

[0049] During specific use, when the lifting rope 2017 is lowered, it drives the hole lifting unit 5 to move downward until the socket on the lifting rod 505 corresponds to the lifting hole 507 on the prefabricated component 12, and then stops the lifting drive motor 2019. Then, the output end of the control cylinder 504 is contracted, driving the two T-shaped plates 503 on the same lifting frame 501 to approach each other along the T-shaped groove, thereby driving the two lifting rods 505 to approach each other and close to the prefabricated component 12. Then, the lifting pin 506 is inserted into the lifting hole 507 through the socket and fixed to the prefabricated component 12, thereby completing the lifting and installation of the prefabricated component 12.

[0050] Next, the four locking reinforcement rods 402 on the left and right hanging frames 501 are rotated to make the four locking reinforcement rods 402 approach each other until the locking grooves 403 on the four locking reinforcement rods 402 are staggered with each other, and then the locking plug rod 404 is inserted into the hole formed by the staggered holes between the four locking reinforcement rods 402 and screwed with the outer thread of the locking plug rod 404 by bolts, so as to fix the locking plug rod 404 and then fix the locking reinforcement rod 402, and then start the hanging drive motor 2019 to drive the rotating shaft 2015 to rotate, so as to drive The two wire drums 2016 are driven to rotate clockwise, so that the lifting rope 2017 drives the hole lifting unit 5 to rise, thereby lifting the prefabricated component 12, and the reinforcing rods 402 are rotated to make them close to each other and staggered, and through the insertion of the locking plug rods 404, a more stable frame structure is formed, which not only enhances the strength of the lifting frame 501 itself, but also further consolidates the connection between the left and right lifting frames 501. The locked lifting frame 501 can better withstand the force generated during the lifting process, thereby ensuring the safety and stability of the lifting operation.

[0051] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 The leveling and locking assembly 301 includes a leveling column 3011 with a plurality of limit slots 3019 at the bottom, an installation cavity 3012 provided in the leveling column 3011, and a leveling plate 3017 fixedly installed on the top of the locking plug rod 404, a plurality of return springs 3013 distributed in a square shape and corresponding to the limit slots 3019 are fixedly installed on the inner wall of the installation cavity 3012, a control board 3014 is fixedly installed on the other end of the return spring 3013, a locking rod 3015 slidingly passing through the inner wall of the installation cavity 3012 is fixedly installed on the side of the control board 3014 close to the inner wall of the installation cavity 3012, a limit block 3018 matching the limit slot 3019 is fixedly installed on the top of the leveling plate 3017, and a locking hole matching the locking rod 3015 is provided on the side of the limit block 3018 close to the locking rod 3015.

[0052] See also Figure 4 , Figure 5 , Figure 7 and Figure 8The leveling column 3011 is fixedly installed at the bottom of the support plate 2018, and a plurality of limit grooves are opened on the inner wall of the installation cavity 3012. A limit rod 3016 slidably connected to the limit groove is fixedly installed on the side of the control board 3014 close to the inner wall of the installation cavity 3012. The control component 302 includes an electric push rod 3021 fixedly installed on the top inner wall of the installation cavity 3012 and an extrusion block 3022 fixedly installed at the output end of the electric push rod 3021. The bottom of the extrusion block 3022 is square cone-shaped, and the control board 3014 is inclined close to the extrusion block 3022 and matches the conical surface at the bottom of the extrusion block 3022.

[0053] When in use, while the locking rod 404 is inserted into the hole formed by the four locking reinforcement rods 402 interlaced with each other, the leveling plate 3017 is pressed on the top of the uppermost locking reinforcement rod 402. After locking and reinforcing the two lifting frames 501, the lifting drive motor 2019 is started to drive the rotating shaft 2015 to rotate, thereby driving the two wire drums 2016 to rotate clockwise, and then the lifting rope 2017 drives the hole lifting unit 5 to rise, so that the two lifting frames 501 synchronously lift the prefabricated component 12. The driving motor 2019 synchronously drives the four lifting ropes 2017 to drive the two hangers to lift, thereby preventing the prefabricated component 12 from tilting during the lifting process. Then, as the prefabricated component 12 rises, the leveling plate 3017 contacts and gradually fits with the bottom of the leveling column 3011. At the same time, the limit block 3018 is inserted into the limit slot 3019. At the same time, the limit block 3018 inserted into the limit slot 3019 can limit the horizontal direction of the prefabricated component 12, thereby preventing the prefabricated component 12 from shifting horizontally during the lifting process.

[0054] Next, the output end of the electric push rod 3021 is controlled to push the extrusion block 3022 to move downward, so that the square cone surface at the bottom of the extrusion block 3022 squeezes the inclined surfaces on the four control boards 3014 at the same time, thereby driving the control board 3014 to move toward the inner wall of the installation cavity 3012 under the limit of the limit rod 3016 and compressing the reset spring 3013, thereby driving the locking rod 3015 to insert into the locking hole on the limit plug 3018, thereby locking and fixing the limit plug 3018, avoiding the limit plug 3018 from deviating during the lifting process and causing the prefabricated component 12 to tilt, thereby further improving the stability of the prefabricated component 12 and avoiding the prefabricated component 12 from tilting during the transfer to the installation area.

[0055] After locking and fixing the limit plug 3018, the control frame 1 transfers the prefabricated component 12 to the installation position, and then controls the traveling crane trolley 2012 to move forward, hoisting and moving the prefabricated component 12 to just above the installation position, and drives the output end of the oil cylinder 2021 through the positioning pin to push the positioning pin into the corresponding positioning hole. In the process of the traveling crane trolley 2012 moving forward, the leveling plate 3017 and the leveling column 3011 are always in close contact, and the locking rod 3015 is always inserted into the locking hole on the limit plug 3018 to lock and limit the prefabricated component 12, thereby preventing the prefabricated component 12 from tilting during the movement to the installation position. After the prefabricated component 12 is moved to the installation position, there is no need to frequently perform leveling operations, and the locking rod 3015 can be controlled to disengage from the locking hole on the limit plug 3018, and then the prefabricated component 12 can be lowered for installation.

[0056] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks, characterized in that: include: A frame (1) and a hoisting drive unit (2) arranged on the frame (1), the hoisting drive unit (2) comprising a drive assembly (201) and a positioning assembly (202) for positioning the drive assembly (201); a hole hoisting unit (5), a locking reinforcement unit (4) and a self-leveling latch unit (3) for adjusting a prefabricated component (12) to a horizontal state are arranged at the bottom of the drive assembly (201); the self-leveling latch unit (3) comprises a leveling locking assembly (301) and a control assembly (302) for controlling the leveling locking assembly (301) to lock the prefabricated component (12); The leveling locking assembly (301) comprises a leveling column (3011) with a plurality of limiting slots (3019) at the bottom, an installation cavity (3012) and a leveling plate (3017) provided in the leveling column (3011); a plurality of return springs (3013) distributed in a square shape and corresponding to the limiting slots (3019) are fixedly installed on the inner wall of the installation cavity (3012); a control board (3014) is fixedly installed on the other end of the return spring (3013); a locking rod (3015) slidingly penetrating the inner wall of the installation cavity (3012) is fixedly installed on the side of the control board (3014) close to the inner wall of the installation cavity (3012); a limiting plug (3018) matching with the limiting slot (3019) is fixedly installed on the top of the leveling plate (3017); a locking hole matching with the locking rod (3015) is provided on the side of the limiting plug (3018) close to the locking rod (3015); As the prefabricated component (12) is lifted, the leveling plate (3017) rises to drive the limit plug (3018) to be inserted into and pressed against the limit slot (3019), so that the prefabricated component (12) is adjusted to a horizontal state and limited. Then, the control component (302) controls the locking rod (3015) to be inserted into the locking hole, and the limit plug (3018) is locked and limited in the vertical direction, so that the prefabricated component (12) is locked and limited in all directions after the prefabricated component (12) is leveled.

2. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 1, characterized in that: The locking reinforcement unit (4) comprises two pairs of hinged seats (401) fixedly mounted on the adjacent sides of the two hanging frames (501) and locking reinforcement rods (402) hinged on the hinged seats (401); the four hinged seats (401) are arranged in a square shape; locking grooves (403) are provided on the locking reinforcement rods (402); and the locking reinforcement rods (402) are alternately arranged up and down; during hanging, the four locking reinforcement rods (402) are locked by means of locking rods (404) and locking grooves (403); and the leveling plate (3017) is fixedly mounted on the top of the locking rods (404).

3. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 1, characterized in that: The frame (1) comprises a base frame (101) and two H-shaped portal frames (102) fixedly mounted on the top of the base frame (101) and symmetrical to the left and right. The two H-shaped portal frames (102) are connected via a plurality of connecting beams (103), and cross beams (104) are fixedly mounted on the tops of the two H-shaped portal frames (102).

4. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 3, characterized in that: The driving assembly (201) comprises a top guide rail (2011) fixedly mounted on the top of the crossbeam (104) and a traveling crane carriage (2012) slidably connected to the outside of the top guide rail (2011); two I-beams (2013) symmetrically mounted front and rear are mounted on the top of the two traveling crane carriages (2012); an axle seat (214) is fixedly mounted on the top of the I-beam (2013); a rotating shaft (2015) is mounted between the two axle seats (2014); and two steel wire drums (2016) are fixedly sleeved on the outside of the rotating shaft (2015).

5. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 4, characterized in that: A lifting rope (217) and a lifting rope (217) are respectively wound around the circumferential outer wall of the wire drum (2016) in a counterclockwise direction and a lifting rope (217) are wound around the circumferential outer wall in a clockwise direction. A lifting plate (210) is fixedly installed at the bottom of the lifting rope (2017). A supporting plate (2018) is commonly installed at the bottom of the two I-beams (2013). A lifting drive motor (2019) whose output shaft is fixedly connected to the rotating shaft (2015) is fixedly installed on the top of the supporting plate (2018).

6. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 5, characterized in that: The leveling column (3011) is fixedly mounted on the bottom of the support plate (2018), a plurality of limit grooves are provided on the inner wall of the installation cavity (3012), a limit rod (3016) slidably connected to the limit grooves is fixedly mounted on the side of the control panel (3014) close to the inner wall of the installation cavity (3012), the control assembly (302) comprises an electric push rod (3021) fixedly mounted on the top inner wall of the installation cavity (3012) and an extrusion block (3022) fixedly mounted on the output end of the electric push rod (3021), the bottom of the extrusion block (3022) is in a square cone shape, and the side of the control panel (3014) close to the extrusion block (3022) is inclined and matches the conical surface at the bottom of the extrusion block (3022).

7. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 4, characterized in that: The hoisting drive unit (2) further comprises an adjustment component (203), the adjustment component (203) comprising two adjustment guide rails (2031) fixedly mounted on one side of the I-beam (2013) close to the suspension rope (217) and symmetrically disposed on the left and right sides, an adjustment slider (2032) being slidably connected to the adjustment guide rails (2031), an adjustment shaft (2033) being commonly mounted between the adjustment sliders (2032) on the same side of the two I-beams (2013), two fixed pulleys (2034) being fixedly mounted on the outside of the adjustment shaft (2033) in a front-to-rear symmetrical manner, and the suspension ropes (2017) on the left and right sides are respectively wound around the outside of the corresponding fixed pulleys (2034) on the left and right sides.

8. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 7, characterized in that: The hole-matching hoisting unit (5) comprises two hoisting frames (501) respectively fixedly mounted on the bottom of the two left hanging plates (2010) and the bottom of the two right hanging plates (2010) and two pairs of slide grooves (502) opened on the hoisting frames (501) and symmetrically arranged front and back, a T-shaped plate (503) is slidably connected between the same pair of slide grooves (502), a cylinder (504) is hingedly connected between the two T-shaped plates (503), the front T-shaped plate (503) is hingedly connected to the output end of the cylinder (504), the rear T-shaped plate (503) is hingedly connected to the cylinder body of the cylinder (504), a hoisting rod (505) is fixedly mounted on the bottom of the T-shaped plate (503), and a plurality of hoisting holes (507) are opened on both the front and rear sides of the prefabricated component (12) and are matched with the hoisting rod (505) through hoisting pins (506).

9. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 5, characterized in that: The positioning assembly (202) comprises a positioning pin driving cylinder (2021) fixedly mounted on a side of the traveling crane carriage (2012) away from the lifting drive motor (219) and having a positioning pin fixedly mounted on the output end, and two positioning plates (2022) having positioning holes and cooperating with the positioning pins fixedly mounted on a side of the crossbeam (104) away from the lifting drive motor (2019).

10. The automatic hoisting machine for auxiliary installation of prefabricated components of assembled bridge decks according to claim 3, characterized in that: An extension frame (6) is fixedly mounted on the bottom of the crossbeam (104), an extension hydraulic support leg (7) is fixedly mounted on the bottom of the extension frame (6), two electric steering wheels (8) symmetrically mounted on the left and right and four integrated hydraulic support legs (9) distributed in a square are fixedly mounted on the bottom frame (101), and a hydraulic station (11) and an integrated diesel generator (10) for power supply are fixedly mounted on the right side of the bottom frame (101).

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