SU439464A1 - Tower crane for construction work - Google Patents

Description

The tower crane, in the lower part of the auxiliary cooling device and the swiveling transfer device with a bracket for hanging the traverse arms lifted by the auxiliary load-lifting mechanism and interacting with the hook suspension mounted on the cargo trolley, are known.

The disadvantage of this design is the possibility of swinging during the up-lowering of the suspensions of the auxiliary load-lifting mechanism.

The purpose of the invention is to reduce the swinging of the suspension of the auxiliary load-carrying mechanism when it is moved. This is achieved by the fact that blocks are installed on the suspension, which interact with the rope stretched along the tower, and the rollers which interact with rigid lines attached to the rail at the beginning and at the end of the suspension path.

FIG. I depicts an offer for my crane, general view; in fig. 2 shows the upper part of the tower; in fig. 3 - auxiliary suspension; in fig. 4 is the layout of the direction of the 5th rope.

The tower crane contains a hinge part I, a non-swinging tower 2, in the lower part of which the boom 3 and the swiveling transmission device 4 are placed, and the upper swivel part 5 carrying the main boom 6. The boom 6 moves the boom 6. x towers

5 of the main boom side, two brackets 8 and 9 are placed. On the upper bracket 8 (see FIG. 2), an auxiliary cargo winch 10 is installed, which provides

0 feeding and lowering the suspension 11 Between the brackets guide rope 12 is pulled in tight. In addition, on the brackets there are rigid guides 13 fitted with a hard section 14 at the end. 3 439 Suspension C cm, fig, Zy: consists of frame 15, load pickup 16, cargo 17 and guide 18 blocks and side rollers 19, spare guide rail (see FIG. 4, carried out so that the suspension does not tilt when it is raised and lowered. On the bracket 8, the ends of the rope are fixed and on the bracket 9 Tensioning drums 20 are located, having a reserve of rope in case of When lifting, the building part is suspended from the yoke and auxiliary boom is transferred to the arm of the swiveling transfer device 4. After turning the device 4, the yoke with the part is outweighed by suspension II, lifted by the winch 10 and outweighed by the trolley 7, During the vertical movement of the suspension the rope reduces the buildup and eliminates the rotation and tilting of the suspension, which makes the rollers of the 19th year hang up to enter the sloping sections 14 of the guides 13, which ensure accuracy and a load pickup 16 of the INVENTION: A tower crane for construction work comprising a fixed tower, an arrow with a bogie | 1, an assist boom, a rotatable transfer device and a suspension moving along the tower, characterized in that, in order to reduce swinging of the suspension, its movement, it is equipped with blocks interacting with the rope pulled along the tower and rollers, interacting with rigid guides fixed on the tower at the beginning and at the end of the suspension path.

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