Bridge body hoisting and transferring device

Abstract

The utility model discloses a bridge body hoisting and transferring device, which belongs to the technical field of hoisting equipment, and comprises two groups of balance beams, a plurality of cross beams are fixedly connected between the two groups of balance beams, the top surface of each group of balance beams is fixedly connected with a steel cable, the top end of the steel cable is fixedly connected with a fixed disc, and a hoisting device is arranged above the fixed disc; the position of the lifting hook is flexibly adjusted through the limiting structure, bridge bodies with different sizes, shapes and gravity center distribution are accurately matched, meanwhile, through the matched design of the limiting groove and the limiting block, the lifting hook can achieve multi-position adjustment on the balance beam, and the problem that a traditional fixed lifting hook is difficult to align to the gravity center of the beam body is effectively solved; the lifting hook has the advantages of being simple in structure and convenient to use, avoiding the risks of inclination, shaking and the like during beam body lifting, remarkably improving the accuracy and safety of lifting operation, ensuring that the lifting hook can be stably locked after the position is selected through the special structural design of the sunken groove, preventing accidental displacement, and providing reliable guarantee for lifting operation under complex working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field, concretely is a bridge girder hoisting transfer device. BACKGROUND

[0002] The bridge girder hoisting transfer device is the key equipment in bridge construction, is mainly used for shifting the prefabricated bridge girder from the production site to the bridge erection construction site, and completes the accurate hoisting operation, and its performance directly influences the efficiency and safety of bridge construction.

[0003] Chinese patent discloses a kind of bridge girder hoisting transfer device (announcement number CN221917110U), the patent, including crane body, crane body includes main beam and hoist trolley, hoist trolley is hung with the hanger of horizontal arrangement and located below main beam, both ends of hanger are fixedly connected with two horizontally opposite and parallel with main beam I-shaped track, first lifting hook is installed on each I-shaped track and can move along I-shaped track and with electric hoist, the first lifting hook of electric hoist is hung with load-bearing frame, the inner side of load-bearing frame is installed with L-shaped hook, the outer side of load-bearing frame is installed with the reel device with second lifting hook and second wire rope, the second lifting hook of reel device is hung with electromagnetic chuck, and the two electromagnetic chucks located at the same end of hanger are different name magnetic poles, two L-shaped hooks located at the same end of hanger are symmetrically arranged;

[0004] Therefore, based on the above retrieval and in combination with existing, with the diversification development of modern bridge engineering design, the length, width, thickness and other dimensions of bridge girder are different, but the position of hook in the patent is fixed design, which is difficult to meet the requirement of gravity center of different size girder, in actual hoisting process, because hook cannot be accurately aimed at the gravity center of girder, hoisting stress is unbalanced, girder is prone to tilt in lifting moment, increase the operation difficulty of device in hoisting process, also can cause surface damage of girder, even cause wire rope fracture, equipment overturning and other serious safety accidents, bring great hidden danger to quality and safety of bridge construction. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of bridge girder hoisting transfer device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of bridge girder hoisting transfer device, including balance beam, the balance beam is equipped with two groups and is fixedly connected with multiple cross beams between two groups, the top surface of each group balance beam is fixedly connected with steel cable, the top end of steel cable is fixedly connected with fixed disc, hoisting device is installed above fixed disc;

[0008] The bottom end of each balance beam is provided with a plurality of hooks for suspending and hooking heavy objects, the hooks are slidably connected to the balance beam through a limiting structure, and the limiting structure is used for accurately limiting the position of the hooks on the balance beam.

[0009] The top surface of the fixing disc is fixedly provided with a connecting structure for fixedly connecting a hoisting device.

[0010] As a further scheme of the utility model, the limiting structure comprises a moving frame, the moving frame is slidably arranged in the balance beam, the inner wall of the moving frame is rotatably connected with a turnover plate, the side of the turnover plate close to the balance beam is fixedly connected with a limiting block for positioning the moving frame, the inner wall of the balance beam is provided with a limiting groove for limiting the position of the limiting block, and the limiting block is arranged in the limiting groove.

[0011] As a further scheme of the utility model, the inner wall of the moving frame is rotatably provided with a reset rod for realizing the reverse movement and reset of the limiting block, the bottom end of the reset rod is clamped with the top end of the turnover plate, the turnover plate is pulled to rotate upward by the reset rod, thereby releasing the limitation of the limiting block, and the moving frame can move reversely.

[0012] As a further scheme of the utility model, the side of the moving frame away from the turnover plate is provided with a connecting piece, a pulley for assisting the movement of the hook is rotatably connected between the moving frame and the connecting piece, and the top end of the hook is fixedly connected with the connecting piece.

[0013] As a further scheme of the utility model, the connecting structure comprises a fixed tube, the fixed tube is fixedly arranged on the top surface of the fixing disc, the outer wall of the fixed tube is slidably connected with a sliding ring, and the outer wall of the fixed tube is rotatably connected with a plurality of hanging rods for enhancing the connection strength between the fixed tube and the hoisting device.

[0014] As a further scheme of the utility model, the inner cavity of the fixed tube is slidably connected with a hanging ring for connecting with the hoisting device, the bottom end of the hanging ring is fixedly connected with the sliding ring, and the bottom end of the hanging ring is fixedly connected with a spring for driving the hanging ring to move downward and reset.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses a position of the hook can be adjusted flexibly through the limiting structure, and the bridge girder body of different size, shape and gravity center distribution can be matched accurately, and the cooperation design of the limiting groove and the limiting block makes the hook can realize multi-position adjustment on the balance beam, effectively solve the problem that the traditional fixed hook is difficult to align the gravity center of the girder body, avoid the risk such as inclination and shaking of the girder body during hoisting, significantly improve the accuracy and safety of hoisting operation, and the special structure design of the recessed groove ensures that the hook can be locked stably after being selected, prevents accidental displacement, and provides reliable guarantee for hoisting operation under complex conditions.

[0017] 2. The utility model discloses a position of the hook can be adjusted flexibly through the limiting structure, and the bridge girder body of different size, shape and gravity center distribution can be matched accurately, and the cooperation design of the limiting groove and the limiting block makes the hook can realize multi-position adjustment on the balance beam, effectively solve the problem that the traditional fixed hook is difficult to align the gravity center of the girder body, avoid the risk such as inclination and shaking of the girder body during hoisting, significantly improve the accuracy and safety of hoisting operation, and the special structure design of the recessed groove ensures that the hook can be locked stably after being selected, prevents accidental displacement, and provides reliable guarantee for hoisting operation under complex conditions. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of bridge girder body hoisting transfer device.

[0019] Figure 2 It is a structure view of limiting structure in bridge girder body hoisting transfer device.

[0020] Figure 3 It is a split view of limiting structure in bridge girder body hoisting transfer device.

[0021] Figure 4 It is a structure view of connecting structure in bridge girder body hoisting transfer device.

[0022] Figure 5 It is a sectional view of connecting structure in bridge girder body hoisting transfer device.

[0023] In the drawing: 1, balance beam;2, crossbeam;3, cable;4, fixed disc;5, hoisting device;6, hook;7, pull ring;801, moving frame;802, turnover plate;803, limiting block;804, limiting groove;805, reset rod;806, magnetic plate;807, connecting piece;808, pulley;901, fixed pipe;902, slip ring;903, hanging rod;904, transmission rod;905, hanging ring;906, spring;907, connecting pipe;908, connecting ring;909, hook. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Embodiment one: please refer to Figure 1 A bridge girder hoisting and transferring device, comprising a balance beam 1, the balance beam 1 is provided with two groups and is connected by bolt fixing a plurality of cross beams 2 between the two groups, the cross beam 2 is used for connecting two groups of balance beams 1, enhances the lateral stability and rigidity of the whole device, cooperates with balance beam 1 and jointly bears and transfers load, guarantees that the device will not occur lateral deformation or sway when hoisting, the top surface of each balance beam 1 is fixedly connected with a steel cable 3, the top end of the steel cable 3 is fixedly connected with a fixed disc 4, and a hoisting device 5 is installed above the fixed disc 4;

[0026] The bottom end of each balance beam 1 is provided with a plurality of hooks 6 for suspending and hooking heavy objects, the hook 6 and the balance beam 1 are connected through a limiting structure, and the limiting structure is used for accurately limiting the position of the hook 6 on the balance beam 1, preventing the hook 6 from moving or shaking excessively, ensuring that the hook 6 is adjusted within a suitable range, ensuring that the force is reasonable when hoisting the girder, and avoiding problems such as girder inclination and shaking caused by improper position of the hook 6;

[0027] The top surface of the fixed disc 4 is fixedly provided with a connecting structure for fixedly connecting the hoisting device 5 through a bolt;

[0028] Specifically, the steel cable 3 is provided with four steel cables 3, and the bottom end of each steel cable 3 is fixedly connected with a pull ring 7, and the pull ring 7 is fixedly connected with the upper surface of the balance beam 1, the pull ring 7 is used as the connecting part of the steel cable 3 and the balance beam 1, provides a reliable connecting point for the steel cable 3, so that the steel cable 3 can be firmly fixed on the balance beam 1, ensures the effective transmission of force, and enhances the reliability and stability of the connection between the steel cable 3 and the balance beam 1.

[0029] Please refer to Figure 2 、 Figure 3 The limiting structure comprises a moving frame 801, the moving frame 801 is slidably arranged in the balance beam 1, the inner wall of the moving frame 801 is rotatably connected with a turnover plate 802 through a pin shaft, the side close to the balance beam 1 of the turnover plate 802 is fixedly connected with a limiting block 803 for positioning the moving frame 801, the inner wall of the balance beam 1 is provided with a limiting groove 804 for limiting the position of the limiting block 803, and the limiting block 803 is located in the limiting groove 804;

[0030] Specifically, the moving frame 801 is located above the hook 6, and the inner cavity of each set of balance beams 1 is provided with a sliding groove for providing sliding of the moving frame 801, and the moving frame 801 is located in the sliding groove;

[0031] More specifically, the bottom end of the limiting groove 804 is provided with a plurality of recessed grooves, the left side wall of each set of recessed grooves is perpendicular, which can effectively block the reverse movement of the limiting block 803, and the right side wall is an inclined surface, which can guide the smooth sliding of the limiting block 803 to one side, and because the recessed groove is recessed and the diameter of the limiting block 803 is greater than the diameter of the limiting block 803, the limiting block 803 can be embedded in the recessed groove, and the hook 6 can be hung on the beam body due to the downward force generated by gravity, which can effectively limit the sliding freedom of the limiting block 803 along the inclined surface, so that it can be stably kept in a fixed position, thereby providing reliable positioning support for the hook 6, and ensuring the stability and safety of the beam body during hoisting operation (for details, please refer to Figure 3 );

[0032] When the limiting block 803 moves along the inclined surface of the recessed groove inside the limiting groove 804, the hook 6 is moved to adapt to beams of different sizes, which can more accurately align the center of gravity of the beam, ensure that the beam is uniformly stressed during hoisting, avoid tilting and shaking of the beam due to deviation of the center of gravity, and improve the safety and stability of hoisting. During the movement, the limiting block 803 moves into the recessed groove in sequence, so that the left side wall of the recessed groove limits and fixes the limiting block 803 in the stopped state, effectively preventing the limiting block 803 from moving in the opposite direction, and avoiding the position of the hook 6 from deviating due to shaking during subsequent operation of the lifting device, thereby enhancing the stability and reliability of the entire device during operation, laying a solid foundation for smooth and safe hoisting operation;

[0033] The inner wall of the moving frame 801 is rotatably provided with a reset rod 805 for restoring the reverse movement of the limiting block 803, and the bottom end of the reset rod 805 is connected with the top end of the turnover plate 802, so that the turnover plate 802 is pulled up by the reset rod 805, thereby releasing the limitation of the limiting block 803, and the moving frame 801 can move in the opposite direction;

[0034] Specifically, the top surface of the turnover plate 802 is provided with a pull slot for pulling the turnover plate 802 upward. The moving frame 801 is manually pushed to drive the turnover plate 802 to displace, drive the limiting block 803 to smoothly slide along the guide track of the limiting slot 804, and until the limiting block 803 reaches the most right end point of the right side of the limiting slot 804. The bottom surface of the most right side of the limiting slot 804 is provided with an inclined surface, which can push the limiting block 803 to drive the turnover plate 802 to be upward, so that the reset rod 805 is inserted into the pull slot, and then the turnover plate 802 is kept in the upward state, thereby realizing the reverse pushing of the moving frame 801 to move to the other side of the limiting slot 804, effectively realizing the movement of the lifting hook 6 in the balance beam 1, and more flexible adjustment of the size of the lifting hook 6 (for details, please refer to Figure 3 );

[0035] More specifically, the inner wall of the left side of the limiting slot 804 is fixedly installed with a magnetic plate 806 (for details, please refer to Figure 3 ). The lower side of the magnetic plate 806 is installed with a protruding block, and the protruding block is fixedly connected with the inner wall of the limiting slot 804. When the turnover plate 802 reaches the left side of the limiting slot 804 in the moving process, the reset rod 805 will contact the magnetic plate 806. Due to the adsorption capacity of the magnetic plate 806, the reset rod 805 is adsorbed, and the limiting block 803 moves along the protruding block, so that the turnover plate 802 is turned upward again, the reset rod 805 is separated from the pull slot, the turnover plate 802 loses support, and the reset rod 805 is restored to the initial position state under the action of its own gravity, thereby releasing the limitation of the reset rod 805 on the limiting block 803, so that the limiting block 803 can be freely moved again in the subsequent operation, and fully prepared for the next round of size adjustment operation. It is worth noting that the magnetic force of the magnetic plate 806 is limited. Since the self-weight of the turnover plate 802 is greater than the self-weight of the reset rod 805, the magnetic plate 806 can only realize the adsorption and fixation of the reset rod 805, and will not cause unnecessary interference or obstruction to the reset of the turnover plate 802 due to the excessive magnetic force;

[0036] The side of the moving frame 801 away from the turnover plate 802 is installed with a connecting piece 807. The moving frame 801 and the connecting piece 807 are rotatably connected through a pin shaft with a pulley 808 for assisting the movement of the lifting hook 6. The pulley 808 is located in the sliding slot, and the top end of the lifting hook 6 is fixedly connected with the connecting piece 807.

[0037] Embodiment two: please refer to Figure 4 、 Figure 5 , based on the embodiment 1, the connecting structure includes a fixed tube 901, which is fixedly installed on the top surface of the fixed disc 4 through bolts. The outer wall of the fixed tube 901 is slidably connected with a sliding ring 902, and the outer wall of the fixed tube 901 is rotatably connected with a plurality of hanging rods 903 through a pin shaft for enhancing the connection strength between the lifting device 5.

[0038] Specifically, the outer wall of the sliding ring 902 is rotatably connected with a transmission rod 904 for pulling the hanging rod 903 to merge through a pin shaft, and the transmission rod 904 is rotatably connected with the hanging rod 903 through a pin shaft;

[0039] The inner cavity of the fixed pipe 901 is slidably connected with a hanging ring 905 for being connected with the hoisting device 5, the bottom end of the hanging ring 905 is fixedly connected with the sliding ring 902, and the bottom end of the hanging ring 905 is fixedly connected with a spring 906 for driving the hanging ring 905 to move downward and reset;

[0040] Specifically, the bottom end of the hoisting device 5 is fixedly connected with a connecting pipe 907, the outer wall of the connecting pipe 907 is fixedly connected with a connecting ring 908, and the connecting ring 908 is clamped with the hanging rod 903, the bottom end of the connecting pipe 907 is fixedly connected with a hook 909, and the hook 909 is clamped with the hanging ring 905.

[0041] The working principle of the utility model is:

[0042] The manual pushing moving frame 801 is slid in the sliding groove of the balance beam 1, drives the turnover plate 802 and the limiting block 803 to move along the limiting groove 804, the inclined surface of the bottom end recess groove of the limiting groove 804 guides the movement of the limiting block 803, makes it drive the lifting hook 6 to adjust the position, aims at the beam body gravity center, when the limiting block 803 moves to the target recess groove, the vertical surface on the left side of the recess groove blocks the reverse movement of the limiting block 803, realizes the position fixation of the lifting hook 6, if reverse movement is needed, the turnover plate 802 is pulled up by the reset rod 805, the restriction to the limiting block 803 is removed, cooperates with the right side inclined surface of the limiting groove 804 and the magnetic plate 806 and other structures, realizes the back and forth movement of the moving frame 801 driving the lifting hook 6.

[0043] Then the hoisting device 5 is controlled to descend, the hook 909 is connected with the hanging ring 905 after manual operation, then the hoisting device 5 slowly moves upward, in this process, the hanging ring 905 pulls the sliding ring 902 to move upward, the hanging rod 903 is pulled to merge through the transmission rod 904, then the hanging rod 903 is inserted into the connecting ring 908 and firmly clamped with it, realizes the stable connection of the hoisting device 5 and the whole hoisting and transferring device.

[0044] Finally the hoisting device 5 is started to lift, the balance beam 1 and the lifting hook 6 are lifted through the fixed disc 4 and the steel cable 3, the bridge beam body hooked by the lifting hook 6 is lifted.

[0045] The above only for the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and the utility model concept, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A bridge girder hoisting and transferring device comprising a balance beam (1), characterized in that, The balance beam (1) is provided with two groups and is fixedly connected with a plurality of cross beams (2) between the two groups, the top surface of each group of the balance beam (1) is fixedly connected with a steel cable (3), the top end of the steel cable (3) is fixedly connected with a fixed disc (4), and the upper side of the fixed disc (4) is provided with a lifting device (5); A plurality of hooks (6) for suspending and hooking heavy objects are installed at the bottom end of each group of the balance beam (1), the hook (6) and the balance beam (1) are connected through a limiting structure, and the limiting structure is used for accurately limiting the position of the hook (6) on the balance beam (1); The top surface of the fixed disc (4) is fixedly provided with a connecting structure for fixedly connecting the lifting device (5).

2. The bridge girder hoist transfer device of claim 1, wherein, The limiting structure comprises a moving frame (801), the moving frame (801) is slidably arranged in the balance beam (1), the inner wall of the moving frame (801) is rotatably connected with a turnover plate (802), the side of the turnover plate (802) close to the balance beam (1) is fixedly connected with a limiting block (803) for positioning the moving frame (801), the inner wall of the balance beam (1) is provided with a limiting groove (804) for limiting the position of the limiting block (803), and the limiting block (803) is located in the limiting groove (804).

3. The bridge girder hoist transfer device of claim 2, wherein, The inner wall of the moving frame (801) is rotatably provided with a reset rod (805) for realizing the reverse movement reset of the limiting block (803), and the bottom end of the reset rod (805) is clamped with the top end of the turnover plate (802), the turnover plate (802) is pulled to rotate upward by the reset rod (805), thereby releasing the limitation of the limiting block (803), so that the moving frame (801) can move reversely.

4. The bridge girder hoist transfer device of claim 2, wherein, The side of the moving frame (801) away from the turnover plate (802) is provided with a connecting piece (807), the moving frame (801) and the connecting piece (807) are rotatably connected with a pulley (808) for assisting the movement of the hook (6), and the top end of the hook (6) is fixedly connected with the connecting piece (807).

5. The bridge girder hoist transfer device of claim 1, wherein, The connecting structure comprises a fixed pipe (901), the fixed pipe (901) is fixedly installed on the top surface of the fixed disc (4), the outer wall of the fixed pipe (901) is slidably connected with a sliding ring (902), and the outer wall of the fixed pipe (901) is rotatably connected with a plurality of hanging rods (903) for enhancing the connection strength between the fixed pipe (901) and the lifting device (5).

6. A bridge girder hoist transfer device according to claim 5, wherein, The inner cavity of the fixed pipe (901) is slidably connected with a hanging ring (905) for connecting with the lifting device (5), the bottom end of the hanging ring (905) is fixedly connected with the sliding ring (902), and the bottom end of the hanging ring (905) is fixedly connected with a spring (906) for driving the hanging ring (905) to move downward.

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