A hoisting mechanism for a bridge crane

Abstract

This utility model belongs to the field of bridge and gantry cranes, and in particular, it relates to a lifting mechanism for a bridge and gantry crane. Addressing the problem in existing technologies where it is difficult to adjust the lifting height of materials according to different usage needs when using bridge and gantry cranes, the following solution is proposed: It includes a bracket fixedly connected to the bridge and gantry crane; a support box fixedly connected to the top of the bracket; and a control box fixedly connected to the bottom of the bracket. In this utility model: the material to be lifted is hooked by controlling the lifting hook. At this time, the first electric actuator is operated to guide the contact plate to contact the lifting hook. Simultaneously, the operation of the second electric actuator controls the movement of the lifting hook. A limiting plate connects to limiting holes to ensure stability when lifting materials. Furthermore, the height adjustment effect is achieved by connecting the limiting plate to different limiting holes.

Description

Technical Field

[0001] This utility model relates to the field of bridge and gantry crane technology, and in particular to a hoisting mechanism for a bridge and gantry crane. Background Technology

[0002] In existing technology, a gantry crane is a type of lifting machinery with two or more lifting beams, mainly used for lifting and handling materials. It consists of a gantry frame, main beam, left and right trolley traveling mechanisms, and an electrical control system. Gantry cranes are widely used in various industrial and logistics fields, including workshops, warehouses, ports, and docks. They can efficiently complete the lifting and unloading of goods, improving work efficiency and site utilization. However, in existing technology, when using gantry cranes, it is difficult to coordinate the adjustment of the lifting height to meet different usage requirements.

[0003] Therefore, this application proposes a hoisting mechanism for a bridge crane to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing bridge and gantry cranes in that it is difficult to adjust the lifting height according to the needs of use when controlling the lifting material. Therefore, a lifting mechanism for bridge and gantry cranes is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hoisting mechanism for a bridge gantry crane includes a bracket fixedly connected to the bridge gantry crane. A support box, which is fixedly connected to the top of the bracket; A control box, which is fixedly connected to the bottom of the bracket; An auxiliary plate, which is fixedly connected to the bottom of the support box; A lifting hook, which is slidably connected to the right side of the auxiliary plate; The lifting mechanism includes a movable plate, an extension plate, a connecting plate, and a mating plate. The movable plate is slidably connected to the bottom of the support box. The extension plate is fixedly connected to the left side of the movable plate, and the right side of the extension plate extends into the control box. The connecting plate is rotatably connected to the top of the extension plate. The mating plate is slidably connected to the bottom of the control box, and the top of the mating plate extends into the control box. The top of the mating plate is rotatably connected to the left side of the connecting plate.

[0006] As a preferred embodiment of this utility model, the auxiliary plate is provided with a plurality of limiting holes, and the right side of the movable plate is provided with a protective plate adapted to the limiting holes, and the protective plate is movably connected to the limiting holes.

[0007] As a preferred embodiment of this utility model, a first electric actuator is fixedly connected to the top of the bracket, and a control board is fixedly connected to the output end of the first electric actuator. The right side of the control board is fixedly connected to the left side of the extension plate.

[0008] In a preferred embodiment of this utility model, a second electric push rod is fixedly connected to the left side of the mating plate, and a contact plate is fixedly connected to the output end of the second electric push rod. The front side of the contact plate is slidably connected to the rear side of the mating plate, and the contact plate is in movable contact with the bottom of the lifting hook.

[0009] As a preferred embodiment of this utility model, a limiting plate is slidably connected to the top of the lifting hook, and the limiting plate is movably connected to the limiting hole. A spring is fixedly connected to the left side of the limiting plate, and one end of the spring is fixedly connected to the right side of the lifting hook.

[0010] In a preferred embodiment of this utility model, a contact wheel is rotatably connected inside the limiting hole, the top of the limiting plate is an inclined surface, and the contact wheel is in active contact with the top of the limiting plate.

[0011] Beneficial effects: 1. The material to be lifted is hooked up by controlling the lifting hook. At this time, the No. 1 electric actuator is controlled to work. The No. 1 electric actuator can push the control plate to move to the left. As the control plate moves, the control plate can control the extension plate to move to the left. At the same time, the extension plate controls the movable plate to move, guiding the protective plate to be pulled out from the limiting hole. 2. As the extension plate moves, it can push the connecting plate to move. When the connecting plate moves, it can push the mating plate to move backward. At this time, the mating plate can guide the contact plate to move below the lifting hook. At this time, the second electric actuator works. The second electric actuator can control the lifting hook to move upward through the contact plate. At the same time, when the limiting plate is adapted to the limiting hole, the spring is initially in a stretched state, which can control the connection between the limiting plate and the limiting hole, thereby ensuring the stability when the material is hooked. 3. When different heights need to be adjusted, continue working through the No. 2 electric actuator. The inclined surface of the limiting plate cooperates with the contact wheel to be pulled out from the limiting hole to complete the unlocking. By connecting with different limiting holes, the height adjustment effect can be achieved.

[0012] In this invention: the material to be lifted is hooked up by controlling the lifting hook. At this time, the first electric actuator is operated to guide the contact plate to contact the lifting hook. At the same time, the second electric actuator is operated to control the lifting hook to move. Meanwhile, the limiting plate is connected to the limiting hole to ensure the stability when the material is hooked up. Furthermore, the height can be adjusted by connecting the limiting plate to different limiting holes. Attached Figure Description

[0013] Figure 1 This is a three-dimensional sectional view of the present invention; Figure 2 This is a three-dimensional view of the rear side of the present invention; Figure 3 This is a three-dimensional side view of the present invention; Figure 4 This is an enlarged view of structure A of this utility model.

[0014] In the diagram: 1. Bracket; 2. Support box; 3. Auxiliary plate; 4. Electric actuator No. 1; 5. Control board; 6. Movable plate; 7. Extension plate; 8. Control box; 9. Connecting plate; 10. Matching plate; 11. Electric actuator No. 2; 12. Contact plate; 13. Lifting hook; 14. Limiting plate; 15. Spring; 16. Contact wheel. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example Reference Figures 1-4 A hoisting mechanism for a bridge gantry crane includes a bracket 1 fixedly connected to the bridge gantry crane; Support box 2 is fixedly connected to the top of bracket 1; Control box 8 is fixedly connected to the bottom of bracket 1; Auxiliary plate 3 is fixedly connected to the bottom of support box 2; Lifting hook 13 is slidably connected to the right side of auxiliary plate 3; The lifting mechanism includes a movable plate 6, an extension plate 7, a connecting plate 9, and a mating plate 10. The movable plate 6 is slidably connected to the bottom of the support box 2. The extension plate 7 is fixedly connected to the left side of the movable plate 6, and the right side of the extension plate 7 extends into the control box 8. The connecting plate 9 is rotatably connected to the top of the extension plate 7. The mating plate 10 is slidably connected to the bottom of the control box 8, and the top of the mating plate 10 extends into the control box 8. The top of the mating plate 10 is rotatably connected to the left side of the connecting plate 9.

[0017] With the above structure, by setting up an auxiliary plate 3, the auxiliary plate 3 can cooperate with the lifting hook 13 to adjust the height of the material.

[0018] As a preferred embodiment of this utility model, the auxiliary plate 3 is provided with multiple limiting holes, and the right side of the movable plate 6 is provided with a protective plate that is adapted to the limiting holes. The protective plate is movably connected to the limiting holes. By setting the protective plate, when the protective plate is connected to the limiting holes, it can prevent foreign objects from entering the limiting holes and affecting the use of the limiting holes.

[0019] As a preferred embodiment of this utility model, a first electric actuator 4 is fixedly connected to the top of the bracket 1, and a control board 5 is fixedly connected to the output end of the first electric actuator 4. The right side of the control board 5 is fixedly connected to the left side of the extension plate 7. By setting the first electric actuator 4, the first electric actuator 4 can drive the control board 5 to move, thereby controlling the extension plate 7 to move through the control board 5.

[0020] As a preferred embodiment of this utility model, a second electric actuator 11 is fixedly connected to the left side of the mating plate 10, and a contact plate 12 is fixedly connected to the output end of the second electric actuator 11. The front side of the contact plate 12 is slidably connected to the rear side of the mating plate 10, and the contact plate 12 is in movable contact with the bottom of the lifting hook 13. By setting the second electric actuator 11, the second electric actuator 11 can control the contact plate 12 to move longitudinally, so as to facilitate contact with the lifting hook 13 and control the lifting hook 13 to move.

[0021] As a preferred embodiment of this utility model, a limiting plate 14 is slidably connected to the top of the lifting hook 13, and the limiting plate 14 is movably connected to the limiting hole. A spring 15 is fixedly connected to the left side of the limiting plate 14, and one end of the spring 15 is fixedly connected to the right side of the lifting hook 13. By setting the spring 15, the spring 15 is initially in a stretched state, which can control the connection between the limiting plate 14 and the limiting hole.

[0022] As a preferred embodiment of this utility model, a contact wheel 16 is rotatably connected inside the limiting hole. The top of the limiting plate 14 is an inclined surface, and the contact wheel 16 is in active contact with the top of the limiting plate 14. When the inclined surface of the limiting plate 14 contacts the contact wheel 16, the limiting plate 14 will move, thereby disengaging from the limiting hole. At the same time, the contact wheel 16 reduces friction, facilitating the movement of the limiting plate 14.

[0023] It should be noted that the specific models of the No. 1 electric actuator 4 and the No. 2 electric actuator 11 used should be selected by those skilled in the art. Furthermore, the above information regarding the No. 1 electric actuator 4 and the No. 2 electric actuator 11 is existing technology and will not be elaborated upon in this solution.

[0024] The working principle of this utility model is as follows: In actual operation, the lifting hook 13 is controlled to hook the material to be lifted. At this time, the first electric actuator 4 is controlled to push the control plate 5 to move to the left. As the control plate 5 moves, it can control the extension plate 7 to move to the left. Simultaneously, the extension plate 7 controls the movable plate 6 to move, guiding the protective plate to be pulled out from the limiting hole. At this time, as the extension plate 7 moves, it can push the connecting plate 9 to move. When the connecting plate 9 moves, it can push the mating plate 10 to move backward. At this time, the mating plate 10 moves backward. The contact plate 12 is guided to move below the lifting hook 13. At this time, the second electric actuator 11 works, which can control the lifting hook 13 to move upward through the contact plate 12. At the same time, when the limiting plate 14 is matched with the limiting hole, the spring 15 is initially in a stretched state, which can control the connection between the limiting plate 14 and the limiting hole, thereby ensuring the stability when hooking the material. When different heights need to be adjusted, the second electric actuator 11 continues to work, and the inclined surface of the limiting plate 14 cooperates with the contact wheel 16 to be pulled out from the limiting hole to complete the unlocking. By connecting with different limiting holes, the height adjustment effect is achieved.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoisting mechanism of a bridge portal crane, characterized in that, include (1) A bracket that is fixedly connected to a bridge crane. Support box (2), which is fixedly connected to the top of bracket (1); Control box (8), which is fixedly connected to the bottom of bracket (1); Auxiliary plate (3), which is fixedly connected to the bottom of support box (2); Lifting hook (13), which is slidably connected to the right side of auxiliary plate (3); The lifting mechanism includes a movable plate (6), an extension plate (7), a connecting plate (9), and a mating plate (10). The movable plate (6) is slidably connected to the bottom of the support box (2). The extension plate (7) is fixedly connected to the left side of the movable plate (6), and the right side of the extension plate (7) extends into the control box (8). The connecting plate (9) is rotatably connected to the top of the extension plate (7). The mating plate (10) is slidably connected to the bottom of the control box (8), and the top of the mating plate (10) extends into the control box (8). The top of the mating plate (10) is rotatably connected to the left side of the connecting plate (9).

2. A bridge gantry crane hoisting mechanism according to claim 1, characterised in that, The auxiliary plate (3) has multiple limiting holes, and the right side of the movable plate (6) has a protective plate that matches the limiting holes, and the protective plate is movably connected to the limiting holes.

3. A bridge gantry crane hoisting mechanism according to claim 1, characterised in that, The top of the bracket (1) is fixedly connected to an electric actuator (4), and the output end of the electric actuator (4) is fixedly connected to a control board (5). The right side of the control board (5) is fixedly connected to the left side of the extension plate (7).

4. A bridge gantry crane hoisting mechanism according to claim 1, characterized in that, The left side of the mating plate (10) is fixedly connected to a second electric push rod (11), and the output end of the second electric push rod (11) is fixedly connected to a contact plate (12). The front side of the contact plate (12) is slidably connected to the rear side of the mating plate (10), and the contact plate (12) is in active contact with the bottom of the lifting hook (13).

5. A bridge gantry crane hoisting mechanism according to claim 2, characterised in that, The top of the lifting hook (13) is slidably connected to a limiting plate (14), and the limiting plate (14) is movably connected to a limiting hole. A spring (15) is fixedly connected to the left side of the limiting plate (14), and one end of the spring (15) is fixedly connected to the right side of the lifting hook (13).

6. A bridge portal crane hoisting mechanism according to claim 5, characterised in that, A contact wheel (16) is rotatably connected inside the limiting hole. The top of the limiting plate (14) is an inclined surface, and the contact wheel (16) is in active contact with the top of the limiting plate (14).

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