A safe anti-sway bridge crane

Abstract

The utility model discloses a safe anti-sway bridge crane, which relates to the technical field of bridge cranes, including a bridge arm, a main bearing plate, a secondary plate, a driving trolley, an auxiliary trolley, a lifting arm, a hook, a reinforcing arm, and a protective assembly. The bridge arm is symmetrically welded to the bottom end of the main bearing plate, and a secondary plate is also provided below the main bearing plate. Both ends of the secondary plate are locked and installed on the bridge arm. The top end of the reinforcing arm is connected and matched with the side end of the driving trolley through the protective assembly, and a hook is provided at the bottom end of the lifting arm. The safe anti-sway bridge crane in the utility model has a more stable structure and a better safety protection effect. By providing a reinforcing arm, the side end force of the lifting arm is enhanced; by strengthening the base wheel at the top end of the arm, the connection base point between the reinforcing arm and the secondary plate is increased, and the connection base point between the reinforcing arm and the lifting arm is further increased, ensuring that the lifting arm structure is not easily separated from the bridge crane, thereby improving the overall safety protection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge cranes, and more specifically to a safe anti-sway bridge crane. Background Art

[0002] In the prior art, bridge cranes focus on the connection strength between different structures or use high-strength materials to ensure structural strength. Although using a single structure as the connection base can reduce manufacturing and application costs to a certain extent, once the corresponding connection base is damaged, the damage is irreversible, especially since the heavy objects hoisted by bridge cranes usually have a certain volume and weight. In order to improve the safety of bridge cranes, the inventor studied and proposed this case. Utility Model Content

[0003] The purpose of the utility model is to provide a safe anti-sway bridge crane in order to solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A safe and anti-sway bridge crane comprises a bridge arm, a main bearing plate, a secondary plate, a driving trolley, an auxiliary trolley, a lifting arm, a hook, a reinforcing arm and a protective assembly. The bridge arm is symmetrically welded to the bottom end of the main bearing plate, and a secondary plate is further provided below the main bearing plate. Both ends of the secondary plate are locked and installed on the bridge arm. The driving trolley moves horizontally along the main bearing plate through a first wheel group, and the auxiliary trolley moves horizontally along the secondary plate through a second wheel group. The lifting arm is locked and installed on the auxiliary trolley, and a reinforcing arm is provided at the side end of the lifting arm. The strong arm is arranged at an angle, and the reinforcing arm, the lifting arm and the secondary plate form a triangle shape. The top end of the reinforcing arm is connected and cooperated with the side end of the driving trolley through a protective component. A hook is arranged at the bottom end of the lifting arm. The auxiliary trolley is synchronously displaced with the driving trolley through a connecting piece. A basic wheel is arranged at the top end of the reinforcing arm through a rotating shaft. A tensioning wheel is also arranged on the rotating shaft. The tensioning wheel is located on the outside of the basic wheel. A matching wheel is installed at the side end of the driving trolley through a support rod. The support rod is extended into or out of the driving trolley to change the relative position of the matching wheel.

[0006] The safety anti-sway bridge crane in the utility model has a more stable structure and better safety protection effect. By setting a reinforcing arm, the side end force of the boom is enhanced, so that the boom is kept in a vertical state; by strengthening the base wheel at the top of the arm, the connection base point between the reinforcing arm and the secondary plate is increased, and a tension wheel is set at the side end of the base wheel. The tension wheel and the matching wheel at the side end of the driving trolley cooperate with the wire rope to further increase the connection base point between the reinforcing arm and the boom, ensuring that the boom structure is not easily separated from the bridge crane, thereby improving the overall safety protection effect.

[0007] A better technical solution: the protection component is constructed by a steel wire rope, the steel wire rope is wound around a matching wheel and a tensioning wheel, and the steel wire rope is in a taut state.

[0008] A better technical solution: a rope drum is provided on the driving trolley, and a matching drum is provided on the lifting arm close to the hook side, and the matching drum is connected with the hook; a rope is provided on the matching drum, the rope passes around the matching drum and supports the bottom end of the matching drum, and the rope is controlled by the driving structure on the driving trolley, and the controlled end of the rope is defined as the active end.

[0009] A preferred technical solution: one end of the rope is a fixed end, and it is arranged at the bottom end of the driving trolley.

[0010] A preferred technical solution: the first wheel set on the driving trolley is controlled to rotate by a driving motor.

[0011] The beneficial effects of the utility model are as follows:

[0012] The safety anti-sway bridge crane in the utility model has a more stable structure and better safety protection effect. By setting a reinforcing arm, the side end force of the boom is enhanced; by reinforcing the base wheel at the top of the arm, the connection base point between the reinforcing arm and the secondary plate is increased, and the connection base point between the reinforcing arm and the boom is further increased, ensuring that the boom structure is not easily separated from the bridge crane, thereby improving the overall safety protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0015] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0016] Figure numerals: 1. bridge arm; 2. main supporting plate; 3. secondary plate; 4. driving trolley; 5. auxiliary trolley; 6. lifting arm; 7. hook; 8. reinforcing arm; 9. first wheel group; 10. second wheel group; 11. base wheel; 12. rotating shaft; 13. tensioning wheel; 14. matching wheel; 15. support rod; 16. wire rope; 17. rope drum; 18. matching cylinder; 19. opening; 20. connecting piece. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 3 As shown, this embodiment provides a safe anti-sway bridge crane, including a bridge arm 1, a main bearing plate 2, a secondary plate 3, a driving trolley 4, an auxiliary trolley 5, a lifting arm 6, a hook 7, a reinforcing arm 8, and a protective assembly. The bridge arm 1 is symmetrically welded to the bottom end of the main bearing plate 2, and a secondary plate 3 is also provided below the main bearing plate 2, and both ends of the secondary plate 3 are locked and installed on the bridge arm 1. The driving trolley 4 moves horizontally along the main bearing plate 2 through the first wheel group 9, and the auxiliary trolley 5 moves horizontally along the secondary plate 3 through the second wheel group 10. The lifting arm 6 is locked and installed on the auxiliary trolley 5, and a reinforcing arm 8 is provided at the side end of the lifting arm 6. The reinforcing arm 8 is inclined, and the reinforcing arm 8, the lifting arm 6, and the secondary plate 3 form a triangle, that is, a stable triangular structure is formed. The top of the reinforcing arm 8 is connected and matched with the side end of the driving trolley 4 through the protective assembly, and a hook 7 is provided at the bottom end of the lifting arm 6. The auxiliary trolley 5 is displaced synchronously with the driving trolley 4 through the connecting piece 20. The top end of the reinforcing arm 8 is provided with a base wheel 11 which is rotated by the rotating shaft 12. The rotating shaft 12 is also provided with a tensioning wheel 13. The tensioning wheel 13 is located outside the base wheel 11. The side end of the driving trolley 4 is provided with a matching wheel 14 through a support rod 15. The support rod 15 extends into or out of the driving trolley 4 to change the relative position of the matching wheel 14.

[0020] When the connection position between the secondary plate 3 and the bridge arm 1 changes, the connection piece 20 connected between the driving trolley 4 and the auxiliary trolley 5 changes accordingly to ensure that the distance between the driving trolley 4 and the auxiliary trolley 5 is appropriate, so that the two can move in coordination with each other efficiently. The main support plate 2 and the secondary plate 3 are provided with corresponding openings 19, which are used for the corresponding structures to pass through and move. At the same time, the first wheel set 9, the second wheel set 10, and the basic wheel 11 move along the edge of the opening 19. Further, by providing a plurality of wheel grooves, these wheel grooves allow the corresponding wheel bodies to move accurately along the corresponding tracks.

[0021] Furthermore, the protection assembly is constructed by a steel wire rope 16 , which is wound around the matching wheel 14 and the tensioning wheel 13 , and the steel wire rope 16 is in a taut state.

[0022] Furthermore, a rope drum 17 is provided on the driving trolley 4, and a matching drum 18 is provided on the lifting arm 6 near the hook 7 side, the matching drum 18 is connected with the hook 7, a rope is provided on the matching drum 18, the rope passes around the matching drum 18 and supports the bottom of the matching drum 18, and the rope is controlled by the driving structure on the driving trolley 4; the rope drum 17 cooperates with the matching drum 18 by winding the rope. The driving structure here usually refers to a rope winding machine.

[0023] A cavity structure for placing the matching cylinder 18 is provided inside the lifting arm 6. When the matching cylinder 18 is displaced, it can coordinate with the hook 7 to move synchronously, so that the hook 7 can be moved down to a corresponding height to be hung and connected with a heavy object.

[0024] Further, one end of the rope is a fixed end, and it is arranged at the bottom end of the driving trolley 4. Or other structures are used to meet the corresponding use requirements, such as: both ends of the rope are movable ends, that is, both ends of the rope are driven by the control device, and the relative position of the matching cylinder 18 is controlled and changed by winding and releasing the two ends.

[0025] Furthermore, the first wheel group 9 on the driving trolley 4 is controlled to rotate by a driving motor. For example, the first wheel group 9 includes four wheels, two of which are arranged on one side. The driving motor is installed at the side end of one side, and the output end of the driving motor is linked with the wheel axle on which the wheel is installed.

[0026] When the utility model is in use, the trolley 4 is driven to indirectly control the boom 6 to move between the two bridge arms 1, and the hook 7 on the boom 6 moves up and down to hang and transfer the corresponding heavy objects. The structure of the boom 6 is optimized by strengthening the arm 8 and the protective assembly to improve the structural stability.

Claims

1. A safe anti-sway bridge crane, characterized in that: It includes a bridge arm, a main bearing plate, a secondary plate, a driving trolley, an auxiliary trolley, a lifting arm, a hook, a reinforcing arm, and a protective component. The bridge arm is symmetrically welded to the bottom end of the main bearing plate, and a secondary plate is also arranged below the main bearing plate. Both ends of the secondary plate are locked and installed on the bridge arm. The driving trolley moves horizontally along the main bearing plate through a first wheel group, and the auxiliary trolley moves horizontally along the secondary plate through a second wheel group. The lifting arm is locked and installed on the auxiliary trolley, and a reinforcing arm is arranged at the side end of the lifting arm. The reinforcing arm is arranged obliquely, and The reinforcing arm, the lifting arm and the secondary plate form a triangle shape. The top end of the reinforcing arm is connected and cooperated with the side end of the driving trolley through a protective component. A hook is set at the bottom end of the lifting arm. The auxiliary trolley is synchronously displaced with the driving trolley through a connecting piece. The top end of the reinforcing arm is provided with a basic wheel through a rotating shaft. A tensioning wheel is also provided on the rotating shaft. The tensioning wheel is located on the outside of the basic wheel. The side end of the driving trolley is provided with a matching wheel through a support rod. The support rod extends into or out of the driving trolley to change the relative position of the matching wheel.

2. The safety anti-sway bridge crane according to claim 1 is characterized in that: The protection component is constructed by a steel wire rope, which is wound around a matching wheel and a tensioning wheel, and the steel wire rope is in a taut state.

3. The safety anti-sway bridge crane according to claim 1 is characterized in that: The driving trolley is provided with a rope winding drum, and the lifting arm close to the hook side is provided with a matching cylinder, the matching cylinder is connected with the hook, a rope is provided on the matching cylinder, the rope passes around the matching cylinder and supports the bottom end of the matching cylinder, and the rope is controlled by the driving structure on the driving trolley.

4. The safety anti-sway bridge crane according to claim 3 is characterized in that: One end of the rope is a fixed end, and is arranged at the bottom end of the driving trolley.

5. The safety anti-sway bridge crane according to claim 1, characterized in that: The first wheel set on the driving trolley is controlled to rotate by a driving motor.

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