Hoisting crown block

Abstract

The utility model relates to a hoisting crown block, and relates to the technical field of hoisting equipment, the hoisting crown block comprises a crown block body, mounting plates are arranged on the two sides of a girder of the crown block body, the mounting plates are arranged in the length direction of the girder in the crown block body, and a protective cover is arranged above the crown block body; the protective cover is arranged above a lifting appliance and a cable in the crown block body, and a driving assembly used for driving the protective cover plate to move on the mounting plate is arranged at the lower end of the mounting plate. The hoisting crown block has the effect of reducing the situation that the cable and the lifting appliance on the hoisting crown block are rusted.

Description

Technical Field

[0001] This application relates to the technical field of hoisting equipment, and in particular to a hoisting overhead crane. Background Technology

[0002] An overhead crane is a mechanical device used for moving and hoisting heavy objects at high altitudes. It typically consists of a main beam, trolley, traveling mechanism, drive unit, cables, and lifting tools. It is widely used in industrial production, construction, logistics, and warehousing. For example, in the repair of rolling mill rolls, an overhead crane is usually needed to hoist the rolled mill rolls after welding repairs.

[0003] However, in related technologies, overhead cranes are typically large and located outdoors, with their cables and lifting equipment usually exposed to the elements. Therefore, in rainy or snowy weather, rain and snow directly impact the cables and equipment, and may even accumulate on the cables. Although the cables and equipment are usually coated with anti-corrosion layers, over time, they still face a significant risk of corrosion. Utility Model Content

[0004] To reduce the occurrence of corrosion of cables and lifting equipment on hoisting cranes, this application provides a hoisting crane.

[0005] The overhead crane provided in this application adopts the following technical solution:

[0006] A hoisting trolley includes a trolley body, with mounting plates on both sides of the main beam of the trolley body. The mounting plates are arranged along the length of the main beam in the trolley body. A protective cover is provided on the top of the trolley body, and the protective cover is positioned above the lifting gear and cables in the trolley body. A drive assembly is provided at the lower end of the mounting plate for moving the protective cover on the mounting plate.

[0007] By adopting the above technical solution, the protective cover can shield the overhead lifting equipment and cables in the crane body. At the same time, when the crane is running, the protective cover can be driven by the drive component to move synchronously with the lifting equipment in the crane body, so that the protective cover is always positioned above the lifting equipment and cables in the crane body. This allows the protective cover to protect the lifting equipment and cables in the crane body in real time, reducing the occurrence of rain and snow falling directly on the lifting equipment and cables in the crane body, thereby reducing the occurrence of corrosion of the cables and lifting equipment on the crane.

[0008] Optionally, the drive assembly includes a rack fixedly connected to the mounting plate, on which a gear meshes, and a drive element for driving the gear to slide on the rack is installed at the lower end of the protective cover.

[0009] By adopting the above technical solution, the drive component can drive the gear to move on the rack, thereby causing the protective cover to move along the length of the mounting plate.

[0010] Optionally, the driving component is configured as a drive motor, which is fixedly connected to the lower end of the protective cover, and the output shaft of the drive motor is coaxially arranged and fixedly connected to the gear.

[0011] By adopting the above technical solution, the drive motor can be controlled to rotate, causing the drive motor to drive the gear to rotate, thereby making the protective cover move along the length of the mounting plate.

[0012] Optionally, a limiting rod is provided above the rack, the limiting rod is fixedly connected to the mounting plate, and the gear is placed between the limiting rod and the rack.

[0013] By adopting the above technical solution, the gear can be restricted to the rack by the limiting rod, thereby improving the stability of the gear and rack meshing.

[0014] Optionally, a limiting groove is provided at the upper end of the mounting plate, and the rack is fixedly connected in the limiting groove.

[0015] By adopting the above technical solution, the position of the rack on the mounting plate can be restricted by the limiting groove, thereby improving the stability of the rack on the mounting plate.

[0016] Optionally, the protective cover includes a fixed housing and two movable plates, the movable plates being located on both sides of the fixed housing, and the protective cover having a moving component for moving the movable plates.

[0017] By adopting the above technical solution, the position of the movable plate can be adjusted by the moving part. Thus, when it is not necessary to protect the sides of the cables and lifting equipment, the movable plate can be moved upward by the moving part, so that the movable plate can no longer obstruct the cables and lifting equipment on the hoisting trolley, thereby facilitating the observation of the lifting equipment and drive equipment in the trolley.

[0018] Optionally, the moving component is configured as a cylinder, which is fixedly connected inside the fixed housing, and the telescopic end of the cylinder is fixedly connected to the fixed housing.

[0019] By adopting the above technical solution, the movable plate can be moved by extending and retracting the cylinder.

[0020] Optionally, the lower end of the movable plate is fixedly connected to an extension plate for blocking rain and snow from reaching the cables and hangers from the gaps in the main beam.

[0021] By adopting the above technical solution, the cables and lifting equipment can be further protected by the extension plate, reducing the occurrence of wind and snow reaching the cables and lifting equipment from the gaps in the main beam.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The protective cover can protect the lifting equipment and cables in the crane body in real time, reducing the occurrence of rain and snow falling directly on the lifting equipment and cables in the crane, thereby reducing the occurrence of corrosion of the cables and lifting equipment on the crane.

[0024] 2. The drive motor can be controlled to rotate, causing the drive motor to drive the gear to rotate, thereby making the protective cover move along the length of the mounting plate.

[0025] 3. The position of the movable plate can be adjusted by the movable component. When it is not necessary to protect the sides of the cables and lifting equipment, the movable component can be controlled to move the movable plate upward, so that the movable plate can no longer obstruct the cables and lifting equipment on the hoisting trolley, thereby facilitating the observation of the lifting equipment and drive equipment in the trolley. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the protective cover according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Overhead crane body; 2. Mounting plate; 21. Limiting groove; 3. Protective cover; 31. Fixed housing; 32. Movable plate; 33. Moving part; 4. Drive assembly; 41. Rack; 42. Gear; 43. Drive component; 5. Limiting rod; 6. Extension plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail.

[0030] This application discloses a hoisting overhead crane, as shown in the embodiments below. Figure 1 and Figure 2 The system includes a crane body 1, with mounting plates 2 on both sides of the main beam of the crane body 1. The mounting plates 2 are arranged in a direction parallel to the main beam of the crane body 1. The mounting plates 2 are arranged along the length of the main beam of the crane body 1, and the length of the mounting plates 2 is longer than the length of the main beam of the crane body 1.

[0031] A protective cover 3 is provided on the top of the crane body 1. The protective cover 3 is a cuboid with an opening at the bottom. The protective cover 3 is positioned above the lifting gear and cables in the crane body 1. The lower end of the mounting plate 2 is provided with a drive assembly 4 for moving the protective cover 3 on the mounting plate 2.

[0032] The drive assembly 4 includes two racks 41 mounted on the mounting plate 2, with each rack 41 extending along the length of the mounting plate 2. A limiting groove 21 is formed on the upper surface of the mounting plate 2 opposite to each rack 41. A gear 42 meshes with the rack 41. A drive component 43 for driving the gear 42 to slide on the rack 41 is mounted on the lower end of the protective cover 3. In this embodiment, the drive component 43 is a drive motor, with four drive motors fixedly connected to the four corners of the lower end of the protective cover 3. The output shafts of the drive motors are coaxially aligned with and fixedly connected to the gears 42.

[0033] The drive motor can then be started to move the gear 42 on the rack 41, thereby causing the protective cover 3 to move along the length of the mounting plate 2. At the same time, in order to improve the meshing stability of the rack 41 and the gear 42, a limiting rod 5 is provided above the rack 41. The limiting rod 5 is fixedly connected to the mounting plate 2, and the gear 42 is placed between the limiting rod 5 and the rack 41.

[0034] The protective cover 3 includes a fixed housing 31 and two movable plates 32, which are located on both sides of the fixed housing 31. The protective cover 3 is equipped with movable components 33 for moving the movable plates 32 up and down. In this embodiment, two movable components 33 are provided, each corresponding to one of the movable plates 32. Each movable component 33 is a cylinder, which is fixedly connected inside the fixed housing 31, and the extension / retraction end of the cylinder is fixedly connected to the movable plate 32.

[0035] When side protection for cables and lifting devices is not required, the movable plate 32 can be moved upward by extending and retracting the cylinder, so that the movable plate 32 no longer obstructs the cables and lifting devices on the crane body 1. At the same time, in order to prevent rain and snow from reaching the cables and lifting devices from the gaps in the main beam, an extension plate 6 is fixedly connected to the lower end of the movable plate 32.

[0036] The implementation principle of a hoisting trolley according to an embodiment of this application is as follows: A protective cover 3 shields the overhead lifting equipment and cables within the trolley body 1, reducing the direct impact of rain and snow on the cables and lifting equipment. Simultaneously, during the operation of the trolley body 1, the drive motor can be controlled to move the protective cover 3 synchronously with the lifting equipment within the trolley via gears 42 and racks 41, ensuring that the protective cover 3 is always positioned above the lifting equipment and cables within the trolley body 1, providing real-time protection for the lifting equipment and cables.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hoisting crane, comprising a crane body (1), characterized in that: Mounting plates (2) are provided on both sides of the main beam of the crane body (1). The mounting plates (2) are arranged along the length of the main beam in the crane body (1). A protective cover (3) is provided on the top of the crane body (1). The protective cover (3) is placed above the lifting gear and cables in the crane body (1). A drive assembly (4) is provided at the lower end of the mounting plate (2) for moving the protective cover (3) on the mounting plate (2).

2. The overhead crane according to claim 1, characterized in that: The drive assembly (4) includes a rack (41) fixedly connected to the mounting plate (2), a gear (42) meshing on the rack (41), and a drive element (43) for driving the gear (42) to slide on the rack (41) is installed at the lower end of the protective cover (3).

3. The overhead crane according to claim 2, characterized in that: The driving component (43) is configured as a driving motor, which is fixedly connected to the lower end of the protective cover (3). The output shaft of the driving motor is coaxially arranged and fixedly connected to the gear (42).

4. The overhead crane according to claim 2, characterized in that: A limiting rod (5) is provided above the rack (41), the limiting rod (5) is fixedly connected to the mounting plate (2), and the gear (42) is placed between the limiting rod (5) and the rack (41).

5. A hoisting crane according to claim 2, characterized in that: The mounting plate (2) has a limiting groove (21) at its upper end, and the rack (41) is fixedly connected in the limiting groove (21).

6. The overhead crane according to claim 1, characterized in that: The protective cover (3) includes a fixed housing (31) and two movable plates (32). The movable plates (32) are located on both sides of the fixed housing (31). The protective cover (3) is provided with a movable component (33) for moving the movable plates (32).

7. A hoisting crane according to claim 6, characterized in that: The moving part (33) is configured as a cylinder, which is fixedly connected inside the fixed housing (31), and the telescopic end of the cylinder is fixedly connected to the movable plate (32).

8. A hoisting crane according to claim 7, characterized in that: The lower end of the movable plate (32) is fixedly connected to an extension plate (6) for blocking rain and snow from reaching the cables and lifting devices from the gap in the main beam of the crane body (1).

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