Lifting equipment for bridge deck traffic-keeping steel plate

Abstract

The utility model relates to hoisting equipment for a bridge deck pass-keeping steel plate. The utility model discloses a hoisting device which comprises a flat car, a swing mechanism arranged on the flat car, a stand column arranged on an output shaft of the swing mechanism, a hoisting hydraulic cylinder hinged to the output shaft of the swing mechanism, a hydraulic telescopic arm hinged to the top end of the stand column and a hoisting winch arranged at the hinged end of the hydraulic telescopic arm. The guide roller set is arranged at the moving end of the hydraulic telescopic arm. According to the utility model, mechanical operation is carried out through the slewing mechanism, the lifting hydraulic cylinder, the hydraulic telescopic arm, the permanent magnet lifting jack and the like, so that rapid and safe lifting of a steel plate can be realized, the construction efficiency is greatly improved, the risk of manual operation is remarkably reduced, and remarkable economic benefits and social benefits are brought to the bridge construction industry.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a hoisting device for bridge deck traffic maintenance steel plates. Background Technique

[0002] During the construction of beam erection by a bridge erection machine, a beam transporter is used to transport the beam slab to the bridge deck hoisting site. Since the gap of the cast-in-place section at the pier top and the negative moment tensioning groove are relatively wide, in order to ensure the safe passage of the beam transporter, traffic maintenance steel plates need to be laid at the positions where the beam transporter tires pass through the gaps of the cast-in-place sections at each pier top and the negative moment tensioning groove. The specific dimensions of the traffic maintenance steel plates are determined according to the width of the gap.

[0003] According to the different specifications and dimensions of the beam slabs, the number of steel plates required to be laid for each span of beam slabs is also different. For example, 6 traffic maintenance steel plates need to be laid in the middle span of a 25m small box girder, and 10 traffic maintenance steel plates need to be laid in the middle span of a 30m small box girder. In the past, methods such as bridge erection machines, manual labor, or forklifts were used for laying the steel plates on the bridge deck traffic passage. Moreover, the steel plates are flat and smooth, and it is not convenient to tie the steel wire ropes during hoisting. After statistics, taking the 25m small box girder as an example, it takes about 20 minutes to lay 1 span of steel plates using a bridge erection machine, with low work efficiency and low safety. To solve this situation, a suitable hoisting device for bridge deck traffic maintenance steel plates needs to be developed. Content of the Utility Model

[0004] The problem to be solved by the utility model is to provide a hoisting device for bridge deck traffic maintenance steel plates aiming at the above deficiencies in the prior art. It solves the problems of low efficiency and insufficient safety in the hoisting process of the existing bridge deck traffic maintenance steel plates, and has the advantages of improving construction efficiency and enhancing operation safety.

[0005] The above-mentioned utility model purpose of the utility model is achieved through the following technical solutions:

[0006] A hoisting device for bridge deck traffic maintenance steel plates includes a flatbed truck, a slewing mechanism arranged on the flatbed truck, a column arranged on the output shaft of the slewing mechanism, a hoisting hydraulic cylinder hinged to the output shaft of the slewing mechanism, a hydraulic telescopic arm hinged to the top of the column, a hoisting winch arranged at the hinged end of the hydraulic telescopic arm, a guiding roller group arranged at the moving end of the hydraulic telescopic arm, and a permanent magnet hoister. The piston rod of the hoisting hydraulic cylinder is hinged to the hydraulic telescopic arm and forms an angle-adjustable included angle with the hydraulic telescopic arm. The cable of the hoisting winch sequentially passes through the guiding roller gaps in the guiding roller group and is hooked on the permanent magnet hoister.

[0007] By adopting the above technical solution, a certain number of traffic maintenance steel plates are pre-stacked on the flatbed truck, and then the flatbed truck is driven to the area to be paved; at this time, the operator starts the slewing mechanism through a switch or a control panel. The slewing mechanism is a mechanism that enables the slewing part of the hoisting equipment to rotate around its slewing center line. It consists of a driving structure (such as a motor), a transmission structure, and a slewing bearing. The power of the driving structure is transmitted to the large gear ring fixed on the flatbed truck through the output pinion of the transmission structure, realizing the rotation of the turntable around its slewing center line. Furthermore, the column is driven to rotate by the turntable. And the hydraulic telescopic boom is driven to swing up and down by the lifting hydraulic cylinder, and the hydraulic telescopic boom can extend and retract by itself, enabling the position of the permanent magnet lifter to be adjusted flexibly; at the same time, the setting of the guide rollers further enhances the stability of the moving beam during the telescopic process, reduces friction and wear, and improves the durability of the equipment; when laying the traffic maintenance steel plates, the permanent magnet lifter first moves to the traffic maintenance steel plates on the flatbed truck, activates the magnetism by rotating the handle of the permanent magnet lifter, and its strong magnetic force can quickly adsorb the traffic maintenance steel plate to be hoisted. At this time, the hoisting winch starts to work, and its cable slowly hoists the permanent magnet lifter and the adsorbed steel plate accurately through the guiding action of the guide roller group, and moves smoothly to above the target paving position through the slewing mechanism, the lifting hydraulic cylinder, the hydraulic telescopic boom, etc. After the steel plate reaches the predetermined position, the permanent magnet lifter releases the magnetism, and the steel plate then falls smoothly, completing an efficient hoisting operation; during the whole process, the operator only needs to perform mechanical operations through the slewing mechanism, the lifting hydraulic cylinder, the hydraulic telescopic boom, the permanent magnet lifter, etc., to achieve the rapid and safe hoisting of the steel plate, greatly improving the construction efficiency and significantly reducing the risk of manual operation, bringing significant economic and social benefits to the bridge construction industry.

[0008] The present utility model is further configured as: the flatbed truck is configured as an electric trolley.

[0009] By adopting the above technical solution, the electric trolley has the advantages of simple operation, stable operation, low noise, environmental protection and energy saving, etc. Compared with the traditional fuel-driven flatbed truck, the electric trolley does not need to be refueled frequently, reducing fuel consumption and exhaust emissions, meeting the requirements of modern construction for green environmental protection; at the same time, the cab of the electric trolley is equipped with an advanced control system, and the operator can easily realize operations such as the forward, backward, acceleration, deceleration and braking of the flatbed truck through the buttons or knobs on the control panel, improving the flexibility and accuracy of the operation.

[0010] The present utility model is further configured as follows: The hydraulic telescopic arm includes a hinge seat, a fixed beam disposed on the hinge seat, a movable beam slidably inserted on the fixed beam, and a telescopic hydraulic cylinder hinged to the hinge seat. The piston rod of the telescopic hydraulic cylinder is hinged to the movable beam. The hinge seat is respectively hinged to the column and the piston rod of the lifting hydraulic cylinder. The guide roller set is disposed at the end of the movable beam.

[0011] By adopting the above technical solution, the design of the fixed beam and the movable beam not only ensures the structural stability, but also greatly improves the flexibility and accuracy of the equipment during the hoisting process. The movable beam is cleverly matched with the fixed beam and realizes rapid telescopic adjustment under the drive of the telescopic hydraulic cylinder through the way of sliding insertion. This design not only simplifies the structure, but also improves the durability and reliability of the equipment.

[0012] The present utility model is further configured as follows: The hydraulic telescopic arm further includes a guide roller rotatably connected to the fixed beam, and the guide roller rolls against the surface of the movable beam.

[0013] By adopting the above technical solution, in the relative movement between the movable beam and the fixed beam, the guide roller, as an auxiliary device, effectively reduces the direct contact area between the two, thereby greatly reducing the heat and wear generated by friction. This design not only prolongs the service life of the hydraulic telescopic arm, but also ensures its stability and reliability during long-term operation. The guide roller can be made of wear-resistant materials and can withstand large pressures and frictions to ensure smooth operation in complex construction environments.

[0014] The present utility model is further configured as follows: The guide roller rolls against the bottom surface of the movable beam.

[0015] By adopting the above technical solution, the guide roller can support the movable beam and guide it to slide smoothly along the preset path, further enhancing the overall stability and operation accuracy of the hydraulic telescopic arm.

[0016] The present utility model is further configured as follows: The hinge seat is provided in an inverted L shape, and the two ends of the hinge seat are respectively hinged to the column and the piston rod of the lifting hydraulic cylinder. The length direction of the fixed beam is perpendicular to the hinge axis line on the hinge seat.

[0017] By adopting the above technical solution, the design of the inverted L-shaped hinge seat not only enhances the structural stability, but also optimizes the mechanical transmission path, enabling the hydraulic telescopic arm to more stably resist deformation when subjected to external forces.

[0018] The present utility model is further configured as follows: The cross section of the fixed beam is in a square ring shape, and the cross section of the movable beam is set to be square and matched with the fixed beam.

[0019] By adopting the above technical solution, the square annular cross-section design of the fixed beam enables it to stably support the entire hoisting system, while the moving beam is ingeniously coordinated with the fixed beam to achieve rapid telescopic adjustment.

[0020] The present utility model is further configured as: the guiding roller group includes at least two groups of large guiding rollers and small guiding rollers arranged at intervals from top to bottom. The large guiding rollers and small guiding rollers are rotatably connected to the mobile end of the hydraulic telescopic arm, and a guiding roller gap is formed between each group of the large guiding rollers and small guiding rollers.

[0021] By adopting the above technical solution, the spaced arrangement of the large guiding rollers and small guiding rollers not only ensures the smoothness of the cable when passing through, but also effectively disperses the stress generated by the cable during the guiding process through the combination of rollers with different diameters, reducing the risk of cable wear and breakage.

[0022] In summary, the beneficial technical effects of the present utility model are as follows: through mechanical operations such as the slewing mechanism, lifting hydraulic cylinder, hydraulic telescopic arm, and permanent magnet lifter, the rapid and safe hoisting of steel plates can be achieved, greatly improving the construction efficiency and significantly reducing the risk of manual operations, bringing significant economic and social benefits to the bridge construction industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the bridge deck traffic maintenance steel plate hoisting equipment of the present utility model.

[0024] Figure 2 is a schematic connection diagram between the slewing mechanism, lifting hydraulic cylinder, and hydraulic telescopic arm of the present utility model.

[0025] In the figure, 1, flatbed truck; 2, slewing mechanism; 21, drive motor; 22, slewing bearing; 23, turntable; 3, column; 4, lifting hydraulic cylinder; 5, hydraulic telescopic arm; 51, hinge seat; 52, fixed beam; 53, moving beam; 54, guiding roller; 55, telescopic hydraulic cylinder; 6, hoisting winch; 7, guiding roller group; 71, large guiding roller; 72, small guiding roller; 8, permanent magnet lifter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0027] Refer to Figure 1, a bridge deck traffic maintenance steel plate hoisting device disclosed by the present utility model, includes a flatbed truck 1, a slewing mechanism 2 arranged on the flatbed truck 1, a column 3 arranged on the output shaft of the slewing mechanism 2, a lifting hydraulic cylinder 4 hinged to the output shaft of the slewing mechanism 2, a hydraulic telescopic arm 5 hinged to the top end of the column 3, a hoisting winch 6 arranged at the hinged end of the hydraulic telescopic arm 5, a guide roller group 7 arranged at the moving end of the hydraulic telescopic arm 5, and a permanent magnet lifter 8. Among them, the piston rod of the lifting hydraulic cylinder 4 is hinged to the hydraulic telescopic arm 5 and forms an angle-adjustable included angle with the hydraulic telescopic arm 5. The cable of the hoisting winch 6 passes through the guide roller gap in the guide roller group 7 in sequence and is hooked on the permanent magnet lifter 8.

[0028] The flatbed truck 1 is set as an electric trolley. The electric trolley has the advantages of simple operation, stable operation, low noise, environmental protection and energy saving. Compared with the traditional fuel-driven flatbed truck 1, the electric trolley does not need to refuel frequently, reduces fuel consumption and exhaust emissions, and meets the requirements of modern construction for green environmental protection; at the same time, the cab of the electric trolley is equipped with an advanced control system, and the operator can easily realize the operations of the flatbed truck 1 such as forward, backward, acceleration, deceleration and braking through the buttons or knobs on the control panel, improving the flexibility and accuracy of the operation.

[0029] ‌The slewing mechanism 2 is a mechanism that enables the slewing part of the hoisting device to rotate around its slewing center line. It is composed of a driving motor 21, a transmission structure (not shown in the figure) and a slewing bearing 22. The power of the driving motor is transmitted to the large gear ring fixed on the flatbed truck 1 through the output pinion of the transmission structure, realizing the rotation of the turntable 23 around its slewing center line, and then driving the column 3 to rotate by itself through the turntable 23.

[0030] Refer to Figure 2 , the hydraulic telescopic arm 5 includes an inverted L-shaped hinge seat 51, a fixed beam 52 arranged on the hinge seat 51 and having a square annular cross-section, a moving beam 53 slidably inserted on the fixed beam 52 and having a square cross-section set to cooperate with the fixed beam 52, a guide roller 54 rotatably connected to the fixed beam 52, and a telescopic hydraulic cylinder 55 hinged to the hinge seat 51. Among them, both ends of the hinge seat 51 are respectively hinged to the column 3 and the piston rod of the lifting hydraulic cylinder 4. The length direction of the fixed beam 52 is perpendicular to the hinge axis line on the hinge seat 51. The piston rod of the telescopic hydraulic cylinder 55 is hinged to the moving beam 53, and the guide roller 54 rolls against the bottom surface of the moving beam 53.

[0031] The design of the fixed beam 52 and the moving beam 53 not only ensures the structural stability but also greatly improves the flexibility and accuracy of the equipment during the hoisting process. The square annular cross-section design of the fixed beam 52 enables it to stably support the entire hoisting system, while the moving beam 53 cleverly cooperates with the fixed beam. Through the sliding plug-in method and driven by the telescopic hydraulic cylinder 55, it realizes rapid telescopic adjustment. This design not only simplifies the structure but also improves the durability and reliability of the equipment. The inverted L-shaped hinge seat 51 design not only enhances the structural stability but also optimizes the mechanical transmission path, enabling the hydraulic telescopic boom 5 to more stably resist deformation when subjected to external forces.

[0032] In the relative movement between the moving beam 53 and the fixed beam 52, the guide roller 54, as an auxiliary device, effectively reduces the direct contact area between the two, thus greatly reducing the heat and wear generated by friction. This design not only extends the service life of the hydraulic telescopic boom 5 but also ensures its stability and reliability during long-term operation. The guide roller 54 can be made of wear-resistant materials, capable of withstanding large pressures and frictional forces, ensuring smooth operation even in complex construction environments. The guide roller 54 can support the moving beam 53 and guide it to slide smoothly along the preset path, further enhancing the overall stability and operation accuracy of the hydraulic telescopic boom 5.

[0033] The guide roller set 7 includes two groups of large guide rollers 71 and small guide rollers 72 arranged at intervals from top to bottom. Among them, the large guide rollers 71 and the small guide rollers 72 are rotatably connected to the end of the moving beam 53, and a guide roller gap is formed between each group of large guide rollers 71 and small guide rollers 72. The spaced arrangement of the large guide rollers 71 and the small guide rollers 72 not only ensures the smoothness of the cable passing through but also effectively disperses the stress generated by the cable during the guiding process through the combination of rollers with different diameters, reducing the risk of cable wear and breakage.

[0034] The implementation principle of this embodiment is as follows: First, stack a certain number of traffic maintenance steel plates on the flatbed truck 1, and then drive the flatbed truck 1 to the area to be paved. At this time, the operator starts the slewing mechanism 2 through a switch or a control panel. The slewing mechanism 2 can drive the column 3 to rotate by itself through the turntable 23, and drive the hydraulic telescopic arm 5 to swing up and down through the lifting hydraulic cylinder 4, and the hydraulic telescopic arm 5 can extend and retract by itself, so as to flexibly adjust the position of the permanent magnet lifter 8. At the same time, the setting of the guide roller 54 further enhances the stability of the moving beam 53 during the telescopic process, reduces friction and wear, and improves the durability of the equipment. When laying the traffic maintenance steel plates, the permanent magnet lifter 8 first moves to the traffic maintenance steel plates on the flatbed truck 1, activates the magnetism by rotating the handle of the permanent magnet lifter 8, and its strong magnetic force can quickly adsorb the traffic maintenance steel plates to be lifted. At this time, the hoisting winch 6 starts to work, and its cable slowly hoists the permanent magnet lifter 8 and the adsorbed steel plate accurately through the guiding action of the guide roller group 7, and moves it smoothly to the position above the target paving position through the slewing mechanism 2, the lifting hydraulic cylinder 4, the hydraulic telescopic arm 5, etc. After the steel plate reaches the predetermined position, the permanent magnet lifter 8 releases the magnetism, and the steel plate then falls smoothly, completing an efficient hoisting operation.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A bridge deck traffic maintenance steel plate hoisting device, characterized in that: It includes a flatbed truck (1), a slewing mechanism (2) provided on the flatbed truck (1), a column (3) provided on the output shaft of the slewing mechanism (2), a lifting hydraulic cylinder (4) hinged to the output shaft of the slewing mechanism (2), a hydraulic telescopic arm (5) hinged to the top end of the column (3), a hoisting winch (6) provided at the hinged end of the hydraulic telescopic arm (5), a guide roller group (7) provided at the movable end of the hydraulic telescopic arm (5), and a permanent magnet lifter (8). The piston rod of the lifting hydraulic cylinder (4) is hinged to the hydraulic telescopic arm (5) and forms an angle-adjustable included angle with the hydraulic telescopic arm (5). The cable of the hoisting winch (6) sequentially passes through the guide roller gaps in the guide roller group (7) and is hooked on the permanent magnet lifter (8).

2. The bridge deck traffic maintenance steel plate hoisting device according to claim 1, characterized in that: The flatbed truck (1) is set as an electric trolley.

3. The bridge deck traffic maintenance steel plate hoisting device according to claim 1, characterized in that: The hydraulic telescopic arm (5) includes a hinge seat (51), a fixed beam (52) provided on the hinge seat (51), a moving beam (53) slidably inserted on the fixed beam (52), and a telescopic hydraulic cylinder (55) hinged to the hinge seat (51). The piston rod of the telescopic hydraulic cylinder (55) is hinged to the moving beam (53). The hinge seat (51) is respectively hinged to the column (3) and the piston rod of the lifting hydraulic cylinder (4). The guide roller group (7) is provided at the end of the moving beam (53).

4. The bridge deck traffic maintenance steel plate hoisting device according to claim 3, characterized in that: The hydraulic telescopic arm (5) further includes a guide roller (54) rotatably connected to the fixed beam (52), and the guide roller (54) rolls against the surface of the moving beam (53).

5. The bridge deck traffic maintenance steel plate hoisting equipment according to claim 4, characterized in that: The guide roller (54) rolls against the bottom surface of the moving beam (53).

6. The bridge deck traffic maintenance steel plate hoisting equipment according to claim 3, characterized in that: The hinge seat (51) is set as an inverted L shape, and the two ends of the hinge seat (51) are respectively hinged to the column (3) and the piston rod of the lifting hydraulic cylinder (4). The length direction of the fixed beam (52) is perpendicular to the hinge axis line on the hinge seat (51).

7. The bridge deck traffic maintenance steel plate hoisting equipment according to claim 3, characterized in that: The cross section of the fixed beam (52) is in a square ring shape, and the cross section of the moving beam (53) is set as a square matching the fixed beam (52).

8. The bridge deck traffic maintenance steel plate hoisting equipment according to claim 1, characterized in that: The guide roller group (7) includes at least two groups of large guide rollers (71) and small guide rollers (72) arranged at intervals from top to bottom. The large guide rollers (71) and small guide rollers (72) are rotatably connected to the movable end of the hydraulic telescopic arm (5), and a guide roller gap is formed between each group of large guide rollers (71) and small guide rollers (72).

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