Auxiliary adjusting device for bridge hoisting

Abstract

The utility model relates to the field of lifting equipment, in particular to an auxiliary adjusting device for bridge lifting, which comprises a base, a lifting arm is arranged on the base, a first lifting rope is dragged at the free end of the lifting arm, a movable pulley is wound on the first lifting rope, the movable pulley is mounted on a wheel shell, a lifting hook is mounted at the bottom of the wheel shell, and the lifting hook is connected with the lifting arm. A side plate is arranged on the outer side of the wheel shell, a mounting box is connected to the bottom of the side plate, a first opening allowing the lifting hook to stretch out is formed in the top of the mounting box, a second opening is formed in the side wall, perpendicular to the face where the lifting hook is located, of the mounting box, and a gear motor is fixedly arranged at the bottom in the mounting box; and an output shaft of the gear motor penetrates through the mounting box and then is connected with a driving plate, L-shaped plates are symmetrically arranged on the two sides of the driving plate, and rolling wheels are rotationally arranged between the L-shaped plates and the driving plate. When the lifting hook obliquely pulls the second lifting rope, the deflection angle of the second lifting rope can be contacted and adjusted through the roller, and the adjusting mode is simple, convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment field, concretely is a kind of auxiliary adjusting device for bridge hoisting. BACKGROUND

[0002] When bridge precast beam is hoisted, generally, the two ends of the precast beam are bound with iron chain or rope and other binding tools, and then the hooks of two cranes are connected with the binding tools at the two ends of the precast beam, or the hook of one crane is connected with the binding tools at the two ends of the precast beam through two obliquely pulled hoisting ropes. For the hoisting and transfer of large precast beams, the former is suitable, while for small and medium-sized precast beams, the latter is suitable. Since the hook itself does not have a rotating function, when the angle of the precast beam needs to be adjusted or the precast beam swings in the horizontal plane with the wind, the operator generally controls the precast beam to the desired direction by the main arm of the crane, and sometimes workers need to manually pull the hoisting ropes to adjust the angle of the heavy object. This adjustment method is relatively cumbersome and has certain safety hazards. In view of the adjustment problem during single crane hoisting, the utility model provides an auxiliary adjusting device for bridge hoisting. SUMMARY

[0003] The utility model aims at providing an auxiliary adjusting device for bridge hoisting to solve the problems raised in the above background.

[0004] The utility model is realized through the following technical scheme: an auxiliary adjusting device for bridge hoisting, comprising a base, a hoisting arm is arranged on the base, a first hoisting rope is pulled at the free end of the hoisting arm, a movable pulley is wound on the first hoisting rope, the movable pulley is installed on a wheel shell body, a hook is installed at the bottom of the wheel shell body, a side plate is arranged outside the wheel shell body, an installation box is connected to the bottom of the side plate, a first opening is formed in the top of the installation box for the hook to extend out, a second opening is formed in the side wall perpendicular to the plane where the hook is located, a reduction motor is fixedly arranged at the bottom of the installation box, a drive plate is connected to the output shaft of the reduction motor, L-shaped plates are symmetrically arranged on both sides of the drive plate, and rollers are rotatably arranged between the L-shaped plates and the drive plate.

[0005] Optionally, the side plate is rotatably connected to the outside of the wheel shell body through a rotating shaft, a limiting hole is formed in the wheel shell body, a first positioning hole and a second positioning hole are formed in the side plate, and a positioning pin is inserted between the first positioning hole or the second positioning hole and the limiting hole; when the first positioning hole is aligned with the limiting hole, the side plate is in a natural vertical state, and when the second positioning hole is aligned with the limiting hole, the side plate is turned over to expose the hook.

[0006] Optionally, the two side plates are connected by a back plate away from the side of the hook tip, and the back plate is not connected to the top of the side plate.

[0007] Optionally, the installation box is provided with a controller and an energy storage battery, the controller is connected with the speed reducer motor, the energy storage battery is connected with the controller and the speed reducer motor, and the controller is provided with a remote control end which can be remotely controlled.

[0008] Compared with the prior art, the auxiliary adjusting device for bridge hoisting has the following beneficial effects:

[0009] The installation box is fixedly arranged below the wheel shell body, the speed reducer motor is installed in the installation box, the speed reducer motor is connected with a driving plate, the roller shaft is arranged on the driving plate, and the deflection angle of the second hoisting rope can be contacted and adjusted by the roller when the hook is used to pull the second hoisting rope.

[0010] The side plate connected with the installation box is rotationally arranged on the wheel shell body, the limiting hole is formed in the wheel shell body, the first and second positioning holes are formed in the side plate, the side plate can be controlled to be in a natural vertical state when the second hoisting rope needs to be pulled, and the side plate can be controlled to be turned over to expose the hook when direct hoisting is needed, so that the installation box below the hook does not affect the direct hoisting work. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a hoisting schematic view of the auxiliary adjusting device for bridge hoisting of the utility model;

[0012] Fig. 2 It is a schematic view of the auxiliary adjusting device for bridge hoisting of the utility model from a first perspective;

[0013] Fig. 3 It is a schematic view of the auxiliary adjusting device for bridge hoisting of the utility model from a second perspective;

[0014] Fig. 4 It is a schematic view of the auxiliary adjusting device for bridge hoisting of the utility model after turning over.

[0015] In the drawing: 1, base; 2, hoisting arm; 3, first hoisting rope; 4, hook; 401, wheel shell body; 402, movable pulley; 403, limiting hole; 5, side plate; 501, rotating shaft; 502, first positioning hole; 503, second positioning hole; 504, positioning pin; 505, back plate; 6, installation box; 601, first opening; 602, second opening; 7, speed reducer motor; 701, driving plate; 702, L-shaped plate; 703, roller; 704, energy storage battery; 8, second hoisting rope. DETAILED DESCRIPTION

[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0017] Embodiment: Please refer to Figs. 1 to 4 As shown in the figure, an auxiliary adjusting device for bridge hoisting, comprising a base 1, the base 1 is connected with a hoist arm 2, the free end of the hoist arm 2 is pulled by a fixed pulley with a first hoisting rope 3, the first hoisting rope 3 is wound and pulled with a movable pulley 402, the movable pulley 402 is installed on the wheel shell 401, specifically, the wheel shell 401 is H-shaped structure, the middle is fixedly connected with a hollow wheel shaft for sleeving the movable pulley 402, the wheel shell 401 is installed with a lifting hook 4 at the bottom, the wheel shell 401 is rotatably connected with a side plate 5 outside, the side plate 5 is connected with a mounting box 6 at the bottom, the mounting box 6 is provided with a first opening 601 for the lifting hook 4 to extend downward at the top, and the mounting box 6 is provided with a second opening 602 along the side wall perpendicular to the surface where the lifting hook 4 is located, the second opening 602 penetrates from the bottom to the top of the mounting box 6, a speed reducer 7 is fixedly arranged in the mounting box 6, the output shaft of the speed reducer 7 is connected with a driving plate 701 after penetrating through the mounting box 6, the driving plate 701 is arranged in a rectangular structure, the driving plate 701 is connected with an L-shaped plate 702 on both sides, the two L-shaped plates 702 on the same side are arranged opposite and symmetrically, a roller 703 is rotatably arranged between the L-shaped plate 702 and the driving plate 701, the roller 703 is long shaft-shaped, and the outer surface thereof is made of rubber material. When the lifting hook 4 is hung with two second hoisting ropes 8 below for pulling the weight, the two second hoisting ropes 8 respectively extend from the two second openings 602, and the second hoisting rope 8 can pass between the two roller shafts arranged in pairs, the roller 703 can contact the second hoisting rope 8 by driving the driving plate 701 to rotate by the speed reducer 7, and the deflection angle of the hoisted weight can be adjusted by adjusting the deflection angle of the second hoisting rope 8.

[0018] On the basis of the above embodiment, the hollow wheel shaft is connected with a rotating shaft 501 in axial rotation, two side plates 5 are arranged outside the wheel shell 401 and are fixedly connected with the rotating shaft 501, a limiting hole 403 is arranged on the wheel shell 401 below the wheel shaft, a first positioning hole 502 and a second positioning hole 503 are further arranged on the side plate 5 and are inserted with a positioning pin 504 between the first positioning hole 502 or the second positioning hole 503 and the limiting hole 403. The positions of the first positioning hole 502 and the second positioning hole 503 are required as follows: when the first positioning hole 502 is aligned with the limiting hole 403, the side plate 5 is in a natural vertical state, and when the second positioning hole 503 is aligned with the limiting hole 403, the side plate 5 is flipped to a state that the hook 4 is exposed. That is, when the hook 4 needs to hang two second ropes 8 and perform a diagonal pull, the side plate 5 can be controlled to be in a natural vertical state, and when the hook 4 needs to directly hang a tool for hoisting, the side plate 5 can be controlled to be flipped to a state that the hook 4 is exposed, so as to avoid the influence of the installation box 6 below the hook 4 on the direct hoisting work.

[0019] On the basis of the above embodiment, the two side plates 5 are connected with a back plate 505 between the sides away from the sharp end of the hook 4, so as to improve the stability of the positions of the two side plates 5, and the top of the back plate 505 is not connected to the side plate 5, so as to avoid scratching between the back plate 505 and the first rope 3 when the side plate 5 is flipped.

[0020] On the basis of the above embodiment, a controller (not shown in the figure) and an energy storage battery 704 are further arranged in the installation box 6, the controller is connected with the speed reducer motor 7, the energy storage battery 704 is connected with the controller and the speed reducer motor 7, and a remote control end that can be remotely controlled is arranged on the controller, so that workers can remotely control the deflection angle of the speed reducer motor 7 through a remote controller at a construction site, and the control mode is simple, efficient and safe.

[0021] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary adjustment device for bridge hoisting, comprising a base (1), a boom (2) mounted on the base (1), a first hoisting rope (3) traction at the free end of the boom (2), a movable pulley (402) wound around the first hoisting rope (3), the movable pulley (402) being mounted on a wheel housing (401), and a hook (4) mounted at the bottom of the wheel housing (401), characterized in that: The wheel housing (401) has a side plate (5) on its outer side. The bottom of the side plate (5) is connected to a mounting box (6). The top of the mounting box (6) has a first opening (601) for the hook (4) to extend out. The mounting box (6) has a second opening (602) along the side wall of the side perpendicular to the hook (4). The bottom of the mounting box (6) is fixedly provided with a reduction motor (7). The output shaft of the reduction motor (7) passes through the mounting box (6) and is connected to a drive plate (701). The drive plate (701) has L-shaped plates (702) symmetrically arranged on both sides. A roller (703) is rotatably arranged between the L-shaped plate (702) and the drive plate (701). When two inclined second lifting ropes (8) are hung below the hook (4), the second lifting ropes (8) extend out from the second opening (602). The roller (703) can contact and adjust the deflection angle of the second lifting ropes (8).

2. The auxiliary adjustment device for bridge hoisting according to claim 1, characterized in that: The side plate (5) is rotatably connected to the outside of the wheel housing (401) via a pivot (501). The wheel housing (401) has a limiting hole (403). The side plate (5) has a first positioning hole (502) and a second positioning hole (503). A positioning pin (504) is inserted between the first positioning hole (502) or the second positioning hole (503) and the limiting hole (403). When the first positioning hole (502) is aligned with the limiting hole (403), the side plate (5) is in a natural vertical state. When the second positioning hole (503) is aligned with the limiting hole (403), the side plate (5) is flipped so that the hook (4) is exposed.

3. The auxiliary adjustment device for bridge hoisting according to claim 2, characterized in that: A back plate (505) is connected between the two side plates (5) on the side opposite to the tip of the hook (4), and the back plate (505) is not connected to the top of the side plates (5).

4. The auxiliary adjustment device for bridge hoisting according to claim 1, characterized in that: The mounting box (6) contains a controller and a storage battery (704). The controller is connected to the geared motor (7), and the storage battery (704) is connected to the controller and the geared motor (7). The controller is equipped with a remote control terminal that can be remotely controlled.

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