Electric mobile gantry crane

Abstract

The utility model discloses a kind of electric mobile gantry cranes. Its features are it includes two opposite inverted T-shaped column frames, beam is fixed between the top of two column frames, and the gantry frame of the composition gate shape is fixed with cable-stayed rod between the bottom beam of the two sides of column frame upper end and column frame, the bottom of bottom beam is equipped with two ends of gyro wheel, lithium battery electric hoist that moves along beam left and right is installed on beam, electric lifting fork truck is fixed on the outside of one end of gantry frame, the lifting frame of electric lifting fork truck is fixed with gantry frame, the lifting frame of electric lifting fork truck plays the end of lifting gantry frame, lithium battery power supply on electric lifting fork truck supplies power to electric lifting fork truck and electric hoist on gantry frame simultaneously, i.e. battery power supply line on electric lifting fork truck is connected with electric lifting fork truck and electric hoist on gantry. The electric mobile gantry crane is more flexible and safe than mains.

Description

Technical Field

[0001] This utility model relates to lifting equipment, and in particular to a small electric mobile gantry crane. Background Technology

[0002] Some small gantry cranes have a portal frame-type gantry crane frame. The gantry crane frame has two uprights on either side, with a crossbeam connecting the top of the two uprights to form the gantry crane frame. The bottom of the gantry crane frame is equipped with casters, and a lifting device, such as an electric hoist, is hung on the crossbeam. The electric hoist moves along the crossbeam to transfer the lifted load within the length of the crossbeam. Alternatively, the gantry crane frame can be moved so that the lifting device on the crossbeam is above the load, and then the load is lifted to the required height before moving the gantry crane frame to transfer the load. Usually, the movement of the lifting device on the gantry crane frame is controlled by a remote control switch. However, in actual use, for some small gantry cranes where the distance to move the load is relatively long, it is often necessary to manually push the gantry crane along with the electric hoist moving along the crossbeam to transfer the load. This is too cumbersome in practical use, especially when the gantry crane is loaded with a load, the road surface is uneven, and the distance to be moved is long; manually pushing the gantry crane is extremely laborious. Furthermore, since electric hoists require mains power, they often drag long power cords along with the gantry crane, which is both troublesome and unsafe. Utility Model Content

[0003] The purpose of this utility model is to provide an electric mobile gantry crane that is simple in structure, easy to manufacture and use.

[0004] To meet the above requirements, this utility model is achieved through the following technical solution: It is characterized by comprising two opposing inverted T-shaped uprights, with a crossbeam fixed between the tops of the two uprights, forming a portal-shaped gantry crane. Diagonal bracing rods are fixed between the upper sides of the uprights and the bottom beam of the uprights. Rollers are installed at both ends of the bottom of the bottom beam. A lithium battery-powered electric hoist that moves left and right along the crossbeam is installed on the crossbeam. An electric lifting forklift is fixed to the outer side of one end of the gantry crane. The lifting frame of the electric lifting forklift is fixed to the gantry crane, and the lifting frame of the electric lifting forklift lifts one end of the gantry crane. The lithium battery power supply on the electric lifting forklift simultaneously supplies power to both the electric lifting forklift and the electric hoist on the gantry crane; that is, the battery power supply line on the electric lifting forklift is connected to both the electric lifting forklift and the electric hoist on the gantry crane.

[0005] The electric lifting forklifts mentioned are either fully electric off-road lifting forklifts or lithium-ion pallet trucks.

[0006] According to the above design, an electric mobile gantry crane can be easily moved by simply starting an electric lifting forklift. Using the lifting frame on the forklift, one side of the gantry crane is raised, ensuring that the rollers on that side do not touch the ground. The forklift can then easily move the gantry crane by towing it using its handles and control switches. Furthermore, the lithium battery on the forklift powers both the forklift and the electric hoist on the gantry crane, making the electric mobile gantry crane more flexible and safer than those powered by mains electricity. Attached Figure Description

[0007] Figure 1 This is a 3D view of an electric mobile gantry crane;

[0008] Figure 2 This is an exploded view of an electric mobile gantry crane.

[0009] In the diagram: 1. Column frame; 2. Crossbeam; 3. Gantry crane; 4. Bottom beam; 5. Diagonal tie rod; 6. Roller; 7. Electric hoist; 8. Electric lifting forklift; 9. Lifting frame; 10. Lithium battery power supply. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 , Figure 2 This is a structural diagram of an electric mobile gantry crane. As shown in the diagram, it includes two opposing inverted T-shaped uprights 1. A crossbeam 2 is fixed between the tops of the two uprights 1, forming a portal-shaped gantry crane 3. Diagonal bracing rods 5 are fixed between the upper sides of the uprights 1 and the bottom beam 4 of the uprights 1. Rollers 6 are installed at both ends of the bottom of the bottom beam 4. A lithium battery-powered electric hoist 7, which moves left and right along the crossbeam 2, is installed on the crossbeam 2. An electric lifting forklift 8 is fixed to the outside of one end of the gantry crane 3. The lifting frame 9 of the electric lifting forklift 8 is fixed to the gantry crane 3 (without using the forks on the electric lifting forklift 8). The lifting frame 9 of the electric lifting forklift 8 lifts one end of the gantry crane 3. The lithium battery power supply 10 on the electric lifting forklift 8 simultaneously supplies power to both the electric lifting forklift 8 and the electric hoist 7 on the gantry crane 3. That is, the battery power supply line on the electric lifting forklift 8 is connected to both the electric lifting forklift 8 and the electric hoist 7 on the gantry crane 3. The electric lifting forklift 8 mentioned above refers to either a fully electric off-road lifting forklift or a lithium-ion pallet truck. These are different names used by different companies for the same product. Figure 1 , Figure 2 The form similar to that in Chinese shall prevail.

Claims

1. An electrically powered mobile gantry crane, characterized in that: It consists of two opposing inverted T-shaped uprights, with a crossbeam fixed between the tops of the two uprights, forming a portal-shaped gantry crane. Diagonal braces are fixed between the upper sides of the uprights and the bottom beam of the uprights. Rollers are installed at both ends of the bottom of the bottom beam. A lithium battery-powered electric hoist that moves left and right along the crossbeam is installed on the crossbeam. An electric lifting forklift is fixed to the outside of one end of the gantry crane. The lifting frame of the electric lifting forklift is fixed to the gantry crane. The lifting frame of the electric lifting forklift lifts one end of the gantry crane. The lithium battery power supply on the electric lifting forklift supplies power to both the electric lifting forklift and the electric hoist on the gantry crane. That is, the battery power supply line on the electric lifting forklift is connected to both the electric lifting forklift and the electric hoist on the gantry crane.

2. The electrically powered mobile gantry crane according to claim 1, characterized in that: The electric lifting forklifts mentioned are either fully electric off-road lifting forklifts or lithium-ion pallet trucks.

Images