HEAVY LOAD LIFT DEVICE Russian patent published in 2023 - IPC B66C23/28 B66C19/02 

FIELD: lifting loads.

SUBSTANCE: invention relates to a device for lifting loads. The method for assembling a heavy lifting device includes the following steps. A mounting structure is provided with a mounting frame and with means for pushing up and down for at least one or part of the mast. Installed inside the frame, during the assembly of the device, or removed from the frame, during the disassembly of the device, a part or a number of parts of the mast below the assembled parts of the mast above the specified part or a number of parts of the mast so as to transfer the device from the disassembled position to the fully assembled position. Provide the device with two masts or their parts. The device contains at least one mast or part of the mast, on which the load can be hung. The device is provided with a ground mounting structure configured to occupy a permanent position during assembly of the device. The structure contains a frame provided with means for pushing up and lowering the mast. The frame is made with the possibility of receiving in the frame or removing a part from it or a number of mast parts. The device contains two masts or parts thereof, and the masts are the main beam and the rear mast of the crane.

EFFECT: reduction of the occupied area of the device with an assembly fixture and elimination of the need to use auxiliary equipment is achieved.

8 cl, 17 dwg