Hoisting device for bridge engineering

Abstract

The invention discloses a hoisting device for bridge engineering, and belongs to the technical field of bridge engineering construction equipment, the hoisting device comprises a crane body, a telescopic cargo boom is arranged above the crane body, a fifth driving piece is arranged below the cargo boom, and a deformable hoisting mechanism is arranged at the end part of the cargo boom; and the hoisting mechanism comprises a mounting shell, a rotating seat, a driving structure, four telescopic arm structures, a quick dismounting structure and a hoisting structure. The novel hoisting mechanism is designed, the hoisting mechanism comprises the fixed part (the mounting shell) and the rotating part (the rotating seat), and the telescopic arm structures are driven to rotate through the rotating part, so that the working form of the hoisting mechanism is adjusted, the distribution form of the four telescopic arm structures is changed, and the application range is wider; the length of the telescopic arm structure can be adjusted as required, so that components with different sizes can be conveniently matched; the end part of the telescopic arm structure is connected with a quick dismounting structure, so that the hoisting structure is convenient to dismount and replace.

Description

Technical Field

[0001] This invention relates to the field of bridge construction equipment technology, and in particular to a hoisting device for bridge engineering. Background Technology

[0002] In bridge engineering, the hoisting of large precast components is a crucial step that determines the progress and quality of the project. Currently, commonly used hoisting equipment includes bridge erecting machines, gantry cranes, and large crawler cranes. Their main structures include a massive rigid main beam (or boom), fixed outrigger structures, a winch hoisting system, and an integral hook.

[0003] However, these traditional devices have gradually revealed their inherent technical limitations when dealing with the diverse and complex construction scenarios of modern bridge engineering, mainly in the following aspects:

[0004] 1. Rigid and fixed structure with poor adaptability: Existing equipment often has fixed-length booms or main beams with only a few adjustable length levels, resulting in a monotonous structural form. When facing bridge piers of different spans and heights, or when working in narrow or irregular construction sites (such as mountainous areas or overpasses), the equipment's operating radius and spatial mobility are severely limited. This necessitates configuring multiple models of equipment or performing complex disassembly and reassembly, which is time-consuming and labor-intensive.

[0005] 2. Limited functionality and inability to quickly respond to diverse working conditions: Traditional lifting devices typically rotate a hook at the end of the boom, resulting in a fixed function. To lift components of different shapes, sizes, or requiring special lifting points, the entire hook must be replaced or a complex lifting system must be built. This is cumbersome, time-consuming, and cannot achieve multi-purpose functionality, leading to low equipment utilization. Summary of the Invention

[0006] The purpose of this invention is to provide a hoisting device for bridge engineering, which solves the problems of existing hoisting devices having rigid and fixed structures, poor adaptability, and limited functionality.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] The present invention provides a hoisting device for bridge engineering, comprising a crane body, a telescopic boom provided above the crane body, a fifth driving member for driving the boom to rise provided below the boom, and a deformable hoisting mechanism provided at the end of the boom.

[0009] The hoisting mechanism includes a mounting shell, a rotating seat at the bottom of the mounting shell, a drive structure for driving the rotating seat to rotate inside the mounting shell, telescopic arm structures symmetrically arranged on the front and rear sides of the mounting shell and the left and right sides of the rotating seat, a quick disassembly structure at the end of the telescopic arm structure, and a hoisting structure on the quick disassembly structure.

[0010] Furthermore, the drive structure includes a first drive member disposed on the outside of the mounting housing, the working end of the first drive member extending into the interior of the mounting housing and connected to a worm gear, a worm wheel meshing with one side of the worm gear, and the central axis of the worm wheel extending to the bottom of the mounting housing and connected to the rotating seat.

[0011] Furthermore, the telescopic arm structure includes a first-stage telescopic arm, a second-stage telescopic arm, and a third-stage telescopic arm that are sequentially nested together. The cross-sectional dimensions of the first-stage telescopic arm, the second-stage telescopic arm, and the third-stage telescopic arm decrease sequentially. A second driving member for driving the second-stage telescopic arm to extend outward is provided on one side of the first-stage telescopic arm, and a third driving member for driving the third-stage telescopic arm to extend outward is provided on one side of the second-stage telescopic arm.

[0012] Furthermore, the fixed end of the third driving component is mounted on the secondary telescopic arm via a mounting bracket, and the side of the primary telescopic arm is provided with a through groove through which the mounting bracket can pass.

[0013] Furthermore, the quick-disassembly structure includes a housing connected to the end of the telescopic arm structure. A first gear is provided inside the housing, a second gear is provided at the bottom of the first gear, and several third gears are meshed with the outer side of the second gear. A limit plate is provided at the bottom of the third gear. By rotating the first gear, the second gear is driven to rotate, and the second gear drives the several third gears to rotate, thereby causing the several limit plates to rotate towards the center to position the lifting structure.

[0014] Furthermore, an operating port is provided on the side wall of the housing, through which the user rotates the first gear.

[0015] Furthermore, the lifting structure is configured as a hook assembly, which includes a mounting plate. A hook body is rotatably mounted on the bottom of the mounting plate. An anti-detachment block is hinged to the opening of the hook body. A slot is provided at the bottom of the anti-detachment block. A locking block matching the slot is provided on the end of the hook body near the anti-detachment block.

[0016] Furthermore, the lifting structure is configured as a gripping assembly, which includes a mounting plate, a mounting base at the bottom of the mounting plate, and gripping claws arranged around the perimeter of the mounting plate via a movable frame. A fourth driving component for driving the gripping claws to move is arranged between the mounting base and the movable frame.

[0017] Furthermore, the lifting arm includes a primary lifting arm and a secondary lifting arm that are nested together in sequence. When the lifting arm is retracted, the secondary lifting arm moves into the interior of the primary lifting arm. The top of the primary lifting arm is provided with a sixth driving member for driving the movement of the secondary lifting arm.

[0018] Furthermore, the mounting housing is connected to the secondary lifting arm via a connecting frame, and the secondary lifting arm is provided with a seventh driving component for adjusting the angle of the connecting frame.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0020] This invention designs a novel lifting mechanism, which includes a fixed part (mounting shell) and a rotating part (rotating seat). Telescopic arm structures are symmetrically arranged on the front and rear sides of the mounting shell and on the left and right sides of the rotating seat. The rotating part drives the telescopic arm structures to rotate, thereby adjusting the working mode of the lifting mechanism and changing the distribution of the four telescopic arm structures, for example, from a cross-shaped distribution to a straight-line distribution, or from a cross-shaped distribution to an X-shaped distribution, thus broadening its applicability. The length of the telescopic arm structures can be adjusted as needed to accommodate components of different sizes. The ends of the telescopic arm structures are connected to quick-disassembly structures for easy disassembly and replacement of the lifting structure. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a front view of a first embodiment of the hoisting device for bridge engineering according to the present invention;

[0023] Figure 2 This is a front view of the hoisting mechanism according to Embodiment 1 of the present invention;

[0024] Figure 3 This is a top view of the hoisting mechanism according to Embodiment 1 of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the driving structure according to Embodiment 1 of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the telescopic arm structure according to Embodiment 1 of the present invention;

[0027] Figure 6This is a three-dimensional structural diagram of the quick-disassembly structure according to Embodiment 1 of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the quick-disassembly structure according to Embodiment 1 of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of the hoisting structure according to an embodiment of the present invention;

[0030] Figure 9 This is a front view of Embodiment 2 of the present invention;

[0031] Figure 10 This is a three-dimensional structural diagram of the lifting structure in Embodiment 2 of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting shell; 2. Rotating seat; 3. First driving component; 4. Worm gear; 5. Worm wheel; 6. Telescopic boom structure; 6-1. First-stage telescopic boom; 6-2. Second-stage telescopic boom; 6-3. Third-stage telescopic boom; 6-4. Second driving component; 6-5. Third driving component; 7. Quick disassembly structure; 7-1. Outer shell; 7-1-1. Operating port; 7-2. First gear; 7-3. Second gear; 7-4. Third gear; 7-5. Limiting plate; 8. Lifting structure; 8-1. Mounting plate; 8-2. Locking hook body; 8-2-1. Locking block; 8-3. Anti-detachment block; 8-3-1. Locking slot; 8-4. Mounting seat; 8-5. Clamping claw; 8-6. Fourth driving component; 8-7. Movable frame; 9. Crane body; 10. Lifting boom; 11. Fifth driving component; 12. Sixth driving component; 13. Seventh driving component; 14. Connecting frame. Detailed Implementation

[0033] Example 1

[0034] like Figure 1-8 As shown, a lifting device for bridge engineering includes a crane body 9. A telescopic lifting boom 10 is mounted on top of the crane body 9, and a fifth driving member 11 for driving the lifting boom 10 to rise is mounted below the lifting boom 10. A deformable lifting mechanism is provided at the end of the lifting boom 10. Specifically, the lifting boom 10 includes a primary lifting boom and a secondary lifting boom that are sequentially nested together. When the lifting boom 10 retracts, the secondary lifting boom moves inward toward the primary lifting boom. A sixth driving member 12 for driving the secondary lifting boom to move is mounted on the top of the primary lifting boom. The lifting mechanism is connected to the secondary lifting boom through a connecting frame 14. A seventh driving member 13 for adjusting the angle of the connecting frame 14 is mounted on the secondary lifting boom. The fifth driving member 11, the sixth driving member 12, and the seventh driving member 13 can be existing components such as hydraulic cylinders, and their specific structures will not be described in detail here.

[0035] like Figure 2 As shown, the hoisting mechanism includes a mounting shell 1, a rotating base 2 at the bottom of the mounting shell 1, and a drive structure for rotating the rotating base 2. Telescopic arm structures 6 are symmetrically arranged on the front and rear sides of the mounting shell 1 and on the left and right sides of the rotating base 2. Figure 3 As shown, the four telescopic boom structures 6 are evenly distributed in a circle when viewed from above, that is, the included angle between two adjacent telescopic boom structures 6 is 90°. The ends of the telescopic boom structures 6 are equipped with quick-release structures 7, and lifting structures 8 are detachably installed on the quick-release structures 7.

[0036] During hoisting, the lifting structures 8 at the ends of the four telescopic boom structures 6 can cooperate with the four lifting lugs in the length and width directions of the part to be hoisted. The length of the telescopic boom structure 6 can be adjusted according to the length and width dimensions of the part to be hoisted, so as to lift the part smoothly.

[0037] When there are only two lifting points for the object to be lifted, the drive structure drives the rotating seat 2 to rotate, causing the two telescopic arm structures 6 connected to the rotating seat 2 to rotate to the position below the telescopic arm structure 6 connected to the mounting shell 1. That is, the four telescopic arm structures 6 change from a cross-shaped distribution to a straight-line distribution. The rotation of the rotating seat 2 can also change the four telescopic arm structures 6 from a cross-shaped distribution to an X-shaped distribution. The distribution of the four telescopic arm structures 6 can be adjusted, and the specific form shall meet the actual use requirements.

[0038] like Figure 4 As shown, the drive structure includes a first drive component 3 mounted on the outside of the mounting housing 1. The first drive component 3 can be a motor. The working end of the first drive component 3 extends into the interior of the mounting housing 1 and is connected to a worm gear 4. A worm wheel 5 is meshed with one side of the worm gear 4. Both the worm gear 4 and the worm wheel 5 are rotatably mounted inside the mounting housing 1. The central axis of the worm wheel 5 extends to the bottom of the mounting housing 1 and is connected to the rotating seat 2. In use, the first drive component 3 is activated, which drives the worm gear 4 to rotate. The rotation of the worm gear 4 drives the worm wheel 5 to rotate, and the rotation of the worm wheel 5 drives the rotating seat 2 to rotate.

[0039] like Figure 5As shown, the telescopic arm structure 6 includes a primary telescopic arm 6-1, a secondary telescopic arm 6-2, and a tertiary telescopic arm 6-3 sequentially nested together. The cross-sectional dimensions of the primary telescopic arm 6-1, the secondary telescopic arm 6-2, and the tertiary telescopic arm 6-3 decrease sequentially. A second driving member 6-4 for driving the secondary telescopic arm 6-2 to extend outward is installed on the front side of the primary telescopic arm 6-1. A third driving member 6-5 for driving the tertiary telescopic arm 6-3 to extend outward is installed on the top surface of the secondary telescopic arm 6-2. The fixed end of the third driving member 6-5 is mounted on the secondary telescopic arm 6-2 via a mounting bracket. A through slot is provided on the side of the primary telescopic arm 6-1 for the mounting bracket to pass through. Specifically, the second driving member 6-4 and the third driving member 6-5 can be existing components such as hydraulic cylinders, and their specific structures will not be described in detail here. In use, the second drive unit 6-4 drives the secondary telescopic arm 6-2 to extend from the inside of the primary telescopic arm 6-1, and the third drive unit 6-5 drives the tertiary telescopic arm 6-3 to extend from the inside of the secondary telescopic arm 6-2, thereby increasing the overall length of the telescopic arm structure 6.

[0040] like Figure 6-7 As shown, the quick-release structure 7 includes a housing 7-1 connected to the end of the telescopic arm structure 6. A first gear 7-2 is rotatably mounted inside the housing 7-1. A second gear 7-3 is connected to the bottom of the first gear 7-2. A plurality of third gears 7-4 are meshed with the outside of the second gear 7-3. The third gears 7-4 are rotatably connected to the housing 7-1. A limit plate 7-5 is installed at the bottom of the third gear 7-4. Two operating ports 7-1-1 are opened on the side wall of the housing 7-1. The user rotates the first gear 7-2 at the operating ports 7-1-1. When installing the lifting structure 8, insert the mounting plate 8-1 upwards from the circular opening at the bottom of the outer casing 7-1. Rotate the first gear 7-2 to drive the second gear 7-3 to rotate. The second gear 7-3 then drives several third gears 7-4 to rotate, thereby causing several limiting plates 7-5 to rotate towards the center. This makes the limiting plates 7-5 contact the bottom surface of the mounting plate 8-1, limiting the mounting plate 8-1 and preventing it from falling downwards, thus positioning the lifting structure 8. When disassembling the lifting structure 8, rotate the first gear 7-2 in the opposite direction. The first gear 7-2 then drives the second gear 7-3 to rotate in the opposite direction, which in turn drives several third gears 7-4 to rotate in the opposite direction. This causes the limiting plates 7-5 to rotate outwards into the receiving slots inside the outer casing 7-1, allowing the lifting structure 8 to be removed.

[0041] like Figure 8As shown, the lifting structure 8 is configured as a hook assembly, which includes a mounting plate 8-1. A hook body 8-2 is rotatably mounted on the bottom of the mounting plate 8-1. An anti-detachment block 8-3 is hinged to the opening of the hook body 8-2. A U-shaped latch 8-3-1 is provided at the bottom of the anti-detachment block 8-3. A latching block 8-2-1 matching the latching block 8-3-1 is provided on the end of the hook body 8-2 near the anti-detachment block 8-3. The latching block 8-3-1 is locked on the outside of the latching block 8-2-1 to prevent the lifting ropes hanging inside the hook body 8-2 from falling off.

[0042] Example 2

[0043] This embodiment improves upon Embodiment 1 by modifying the lifting structure 8. For example... Figure 9-10 As shown, the lifting structure 8 is configured as a gripping assembly, which includes a mounting plate 8-1. A mounting base 8-4 is connected to the bottom of the mounting plate 8-1. Four movable frames 8-7 are hinged around the perimeter of the mounting plate 8-1. Gripping claws 8-5 are mounted below the movable frames 8-7. A fourth driving component 8-6 for driving the gripping claws 8-5 is installed between the mounting base 8-4 and the movable frames 8-7. The fourth driving component 8-6 can be an existing component such as a hydraulic push rod. In use, the four fourth driving components 8-6 work simultaneously, driving the four gripping claws 8-5 to move towards the center and grip the object to be lifted.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A hoisting device for bridge engineering, comprising a crane body (9), characterized in that: The upper part of the crane body (9) is provided with a telescopic crane arm (10), the lower part of the crane arm (10) is provided with a fifth driving element (11) for driving the crane arm (10) to rise, and the end of the crane arm (10) is provided with a deformable hoisting mechanism; The hoisting mechanism comprises a mounting shell (1), the bottom of the mounting shell (1) is provided with a rotating seat (2), the inside of the mounting shell (1) is provided with a driving structure for driving the rotating seat (2) to rotate, the front and rear sides of the mounting shell (1) and the left and right sides of the rotating seat (2) are symmetrically provided with telescopic arm structures (6), the end of the telescopic arm structure (6) is provided with a quick disassembly structure (7), and the quick disassembly structure (7) is provided with a hoisting structure (8).

2. The hoisting device for bridge engineering according to claim 1, characterized in that: The driving structure comprises a first driving element (3) arranged outside the mounting shell (1), the working end of the first driving element (3) extends into the inside of the mounting shell (1) and is connected with a worm (4), one side of the worm (4) is meshingly connected with a worm gear (5), and the center shaft of the worm gear (5) extends to the lower part of the mounting shell (1) and is connected with the rotating seat (2).

3. The hoisting device for bridge engineering according to claim 1, characterized in that: The telescopic arm structure (6) comprises a first telescopic arm (6-1), a second telescopic arm (6-2) and a third telescopic arm (6-3) which are sequentially sleeved together, the cross-sectional dimensions of the first telescopic arm (6-1), the second telescopic arm (6-2) and the third telescopic arm (6-3) gradually decrease, one side of the first telescopic arm (6-1) is provided with a second driving element (6-4) for driving the second telescopic arm (6-2) to unfold outward, and one side of the second telescopic arm (6-2) is provided with a third driving element (6-5) for driving the third telescopic arm (6-3) to unfold outward.

4. The hoisting device for bridge engineering according to claim 3, characterized in that: The fixed end of the third driving element (6-5) is arranged on the second telescopic arm (6-2) through a mounting bracket, and the side surface of the first telescopic arm (6-1) is provided with a through slot through which the mounting bracket passes.

5. The hoisting device for bridge engineering according to claim 1, characterized in that: The quick disassembly structure (7) comprises an outer shell (7-1) connected with the end of the telescopic arm structure (6), the inside of the outer shell (7-1) is provided with a first gear (7-2), the bottom of the first gear (7-2) is provided with a second gear (7-3), the outer side of the second gear (7-3) is meshingly connected with a plurality of third gears (7-4), and the bottom of the third gear (7-4) is provided with a limiting plate (7-5); by rotating the first gear (7-2) to drive the second gear (7-3) to rotate, the second gear (7-3) drives a plurality of third gears (7-4) to rotate, thereby driving a plurality of limiting plates (7-5) to rotate towards the center to position the hoisting structure (8).

6. The hoisting device for bridge engineering according to claim 5, characterized in that: An operation port (7-1-1) is arranged on the side wall of the outer shell (7-1), and the user rotates the first gear (7-2) at the operation port (7-1-1).

7. The hoisting device for bridge engineering according to claim 1, characterized in that: The lifting structure (8) is provided as a locking hook assembly, the locking hook assembly comprises a mounting plate (8-1), a locking hook body (8-2) is rotatably arranged at the bottom of the mounting plate (8-1), a anti-off block (8-3) is hingedly connected at the opening of the locking hook body (8-2), a clamping hole (8-3-1) is formed at the bottom of the anti-off block (8-3), and a clamping block (8-2-1) matched with the clamping hole (8-3-1) is arranged at the end of the locking hook body (8-2) close to the anti-off block (8-3).

8. The hoisting device for bridge engineering according to claim 1, characterized in that: The lifting structure (8) is provided as a grabbing assembly, the grabbing assembly comprises a mounting plate (8-1), a mounting seat (8-4) is arranged at the bottom of the mounting plate (8-1), clamping claws (8-5) are arranged around the mounting plate (8-1) through movable frames (8-7), and a fourth driving element (8-6) for driving the clamping claws (8-5) to move is arranged between the mounting seat (8-4) and the movable frames (8-7).

9. The hoisting device for bridge engineering according to claim 1, characterized in that: The lifting arm (10) comprises a primary lifting arm and a secondary lifting arm which are sequentially sleeved, the secondary lifting arm moves to the inside of the primary lifting arm when the lifting arm (10) is retracted, and the top of the primary lifting arm is provided with a sixth driving element (12) for driving the secondary lifting arm to move.

10. The hoisting device for bridge engineering according to claim 9, characterized in that: The mounting shell (1) is connected with the secondary lifting arm through a connecting frame (14), and the secondary lifting arm is provided with a seventh driving element (13) for adjusting the angle of the connecting frame (14).

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