Electric hoist of European style double-beam crane

Abstract

An electric hoist of a European style double-beam crane comprises a frame shaped like a Chinese character'hui ', walking mechanisms are arranged on the two sides of the frame and assembled on main beams on the two sides of the frame, two parallel supporting beams arranged at intervals are arranged in the frame, and the two ends of each supporting beam are detachably fixed to the inner side of the frame through flange plates. A horizontally-arranged electric hoist is arranged above the supporting beam, the two ends of the electric hoist are fixed to the supporting beam, a lifting hook is arranged below the electric hoist, and the lifting hook is connected to the electric hoist through a steel wire rope; stand columns corresponding to the flange plates at the ends of the supporting beams in a one-to-one mode are detachably fixed to the top ends of the main beams, and a plurality of evenly-spaced assembling holes are formed in the stand columns from top to bottom. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and in particular relates to an electric hoist for a European-style double-girder crane. Background Technology

[0002] Electric hoists are a type of special lifting equipment installed on overhead cranes and gantry cranes. They are characterized by their small size, light weight, simple operation, and ease of use, making them suitable for use in industrial and mining enterprises, warehouses, docks, and other similar locations. Electric hoists have a compact structure. When used in factory workshops, electric hoists typically have an I-beam track laid under the main beam. A traveling mechanism is installed at the top of the electric hoist, mounted on the I-beam track. The electric hoist moves along the track under the drive of the traveling mechanism. However, due to the limitations of factory roof height, the main beam height is fixed, resulting in a significant distance between the electric hoist and the roof. Consequently, the lifting range of the electric hoist is relatively small and cannot be adjusted. Therefore, in existing technology, the lifting range of electric hoists in factory workshops cannot be adjusted, failing to meet the needs of lifting goods. Utility Model Content

[0003] This invention addresses the technical problem that existing electric hoists, limited by factory roof height, have a low lifting capacity that cannot meet the lifting requirements of heavy objects. It provides an electric hoist for a European-style double-girder crane, comprising a U-shaped frame that provides support. Traveling mechanisms are mounted on both sides of the frame, mounted on main beams on both sides. The main beams have a U-shaped cross-section, and a travel track parallel to the main beam is laid within them. The traveling mechanism includes traveling wheels, a first reducer, and a traveling motor. The traveling wheels are rotatably mounted on the frame via support shafts. The power output shaft of the traveling motor is connected to the traveling wheels via the first reducer. The traveling motor is connected to a power supply and control system via cables. Starting the traveling motor drives the traveling wheels to rotate, moving the hoist along the travel track on the main beam, thereby adjusting the position of the frame. The frame has two parallel and spaced-apart support beams that provide support. Both ends of the support beams are detachably fixed to the inside of the frame via flanges. A horizontally mounted electric hoist is installed above the support beams, with both ends of the electric hoist fixed to the support beams. A hook is located below the electric hoist, and the hook is connected to the electric hoist via a wire rope. The top of the main beam has detachably fixed columns that correspond one-to-one with the flanges at the ends of the support beams. The columns have several evenly spaced mounting holes from top to bottom. During loading in the workshop, the columns are fixed to the top of the main beams according to workshop requirements. After the height of the two support beams is adjusted as needed, they are detachably fixed to the columns, and then the electric hoists are fixed to the support beams.

[0004] Preferably, the electric hoist is detachably fixed to the two support beams via a fixing plate, and the electric hoist is parallel to the main beam.

[0005] Preferably, the electric hoist includes a hoisting drum, a hoisting motor, and a second reducer, wherein the hoisting drum is assembled with the hoisting motor and the second reducer.

[0006] The above-mentioned approach has the following advantages:

[0007] The installation of columns and support beams allows for adjustment of the fixed height of the support beams according to usage requirements, thus facilitating the adjustment of the lifting range of the electric hoist to meet the lifting capacity requirements of the goods being lifted. The installation of the traveling mechanism allows the traveling wheels to move along the traveling track under the action of the traveling motor, making it easy to adjust the position of the frame. The installation of the electric hoist facilitates the lifting of goods by using wire rope to pull the hook to a certain height. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0009] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0010] Figure 3 This is a structural diagram of the vehicle frame and the electric hoist.

[0011] Reference numerals: 1. Frame; 2. Traveling mechanism; 3. Main beam; 4. Electric hoist; 11. Support beam; 12. Fixing plate; 21. Traveling wheel; 22. Traveling motor; 23. Reducer; 24. Support shaft; 31. Traveling track; 32. Column; 41. Wire rope; 42. Hook. Detailed Implementation

[0012] like Figure 1-3As shown, an electric hoist for a European-style double-girder crane includes a U-shaped frame 1, which provides support. Traveling mechanisms 2 are located on both sides of the frame 1, and are mounted on main beams 3 on both sides of the frame 1. The main beams 3 have a U-shaped cross-section, and a traveling track 31 parallel to the main beams 3 is laid inside them. The traveling mechanism 2 includes traveling wheels 21, a first reducer 23, and a traveling motor 22. The traveling wheels 21 are rotatably mounted on the frame 1 via support shafts 24. The power output shaft of the traveling motor 22 is connected to the traveling wheels 21 via the first reducer 23. The traveling motor 22 is connected to a power supply and control system via a cable. When the traveling motor 22 is started, it drives the traveling wheels 21 to rotate, and the wheels move along the traveling track 31 on the main beams 3, thereby adjusting the position of the frame 1. The frame 1 has two parallel and spaced support beams 11, which provide support. Both ends of the support beams 11 are detachably fixed to the inside of the frame 1 via flanges. Above the support beams 11, there is a horizontally positioned electric hoist 4, with both ends of the electric hoist 4 fixed to the support beams 11. Below the electric hoist 4, there is a hook 42, which is connected to the electric hoist 4 via a wire rope 41. The top of the main beam 3 is detachably fixed with columns 32, which correspond one-to-one with the flanges at the ends of the support beams 11. The columns 32 have several evenly spaced assembly holes from top to bottom. During loading in the workshop, the columns 32 are fixed to the top of the main beam 3 according to the workshop requirements. After the height of the two support beams 11 is adjusted as needed, they are detachably fixed to the columns 32, and then the electric hoist 4 is fixed to the support beams 11.

[0013] Preferably, the electric hoist 4 is detachably fixed to the two support beams 11 by the fixing plate 12, and the electric hoist 4 is parallel to the main beam 3.

[0014] Preferably, the electric hoist 4 includes a lifting drum, a lifting motor, and a second reducer, with the lifting drum assembled with the lifting motor and the second reducer.

[0015] Usage process:

[0016] In use, the crane is assembled according to the workshop requirements. The four columns 32 are fixed to the top of the main beam 3 respectively. After the height of the two support beams 11 is adjusted according to the requirements, they can be detached and fixed to the columns 32. Then, the electric hoist 4 is fixed to the support beams 11. Since the height of the support beams 11 can be adjusted, the lifting range of the electric hoist 4 can be adjusted to the required height when assembling the electric hoist 4.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An electric hoist for a European-style double-girder crane, comprising a U-shaped frame, with traveling mechanisms on both sides of the frame, the traveling mechanisms being mounted on the main beams on both sides of the frame, characterized in that: The frame has two parallel and spaced-apart support beams. Both ends of the support beams are detachably fixed to the inside of the frame via flanges. A horizontally mounted electric hoist is installed above the support beams. Both ends of the electric hoist are fixed to the support beams, and a hook is installed below the electric hoist. The hook is connected to the electric hoist via a wire rope. The top of the main beam has detachably fixed columns that correspond one-to-one with the flanges at the ends of the support beams. Several evenly spaced mounting holes are opened on the columns from top to bottom.

2. The electric hoist of a European-style double-girder crane according to claim 1, characterized in that: The traveling mechanism includes a traveling wheel, a first reducer, and a traveling motor. The traveling wheel is rotatably mounted on the frame via a support shaft. The power output shaft of the traveling motor is connected to the traveling wheel via the first reducer.

3. The electric hoist of a European-style double-girder crane according to claim 1, characterized in that: The cross-section of the main beam is an inverted U-shape, and a running track parallel to the main beam is laid inside the main beam.

4. The electric hoist of a European-style double-girder crane according to claim 1, characterized in that: The electric hoist is detachably fixed to two support beams via a fixing plate, and the electric hoist is parallel to the main beam.

5. The electric hoist of a European-style double-girder crane according to claim 4, characterized in that: An electric hoist includes a hoisting drum, a hoisting motor, and a second reducer. The hoisting drum is assembled with the hoisting motor and the second reducer.

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