SU1208140A1 - Dragline - Google Patents

Description

The invention relates to earthmoving machinery, and more specifically to dragline excavators.

The purpose of the invention is to simplify the design.

Figure 1 shows the excavator-dragline, side view; FIG. 2 is view A of FIG 1; on fig.Z - section bb in figure 2; figure 4 - section bb In figure 2.

The excavator or dragline includes base 1. On base 1, a rotatable platform 2 is mounted, on which the lifting winch 3 and winch are mounted 4 of the bucket 5. To the rotary platform 2, the boom 6 is hingedly attached. installation or repair position in the working is the lifting mechanism 7, consisting of two drums 8, on which the rope 9 is wound, connected to the boom 6 and serving as the suspension element of the boom 6, and the free ends of the rope are fixed on the drums 8. The drums 8 are installed with free opportunity during rotation of the shaft 10 of the drums 11 of the hoist winch 3, the drums 8 rest on the shaft 10 through the bearings 12 and are connected to it by means of a clutch 13 with control nodes 14. The hoses 11 are wound with hoisting ropes 15 for the bucket 5 transferred through the head unit and their free ends are connected to the bucket. In the non-working position, the drums 8 and the drums 11 are a stopper of the vehicle with the help of stoppers 17, made in the form of brackets 18, forks 19 and adjustable screws 20. The forks cover the flanges of the drums 8 and 11, in which holes are made. In the holes of the brackets 18 and the holes of the flanges of the drums 8 and 11

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pins 21 are inserted. Winch 3 has a drive consisting of engine 22 and gearbox 23, Strela-6 is held back in working position by means of suspension 24.

Offer excavator dragline works as follows.

After the assembly of the boom 6 is completed, it is raised to the working position; to do this, with the help of a winch drive 3, the reels are rotated when the drums 11 are locked and the clutches 13 are engaged

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us 8 | the ropes 9 wind on the drums and raise the boom 6 to the working position. In this position, the reels 8 are locked with the fingers 21, for which purpose the nearest holes on the flanges of the drums 8 with the holes in, ilok 19 are placed. After the reels 8 are locked with the help of the nodes 14, they are removed from the interaction with the shaft 10 of the coupling 13. The drums remain stationary, and the shaft 10 with the drums 11 can rotate and lift 5.

In this position, the dragline excavator performs rock digging and unloading operations, in which the lifting winch 3 and winch pulling 4, d operate. The boom 6 is held by the suspension 24. When it is necessary to repair or replace the boom 6, it is lowered using the lifting mechanism 7. Lowering is carried out in the following order. With the help of control units 14, they include clutches 13, which rigidly connect the drums 8 to the shaft 10. The drive rotates the shaft 10, and with it the drums 8 o The rope 9 is wound from the drums 8 and. the boom 6 is lowered, after which the drums 8 are locked by locking knots 17.

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Claims (1)

(54) (. 5 7) EXCAVATOR-DRAGLINE, including base, turntable, mounted on turntable boom, traction winch, bucket hoist winch, on the shafts of which there are drums and a bucket hoist mechanism, characterized in that, with the purpose of For construction purposes, each drum on the shaft of the winch lifting winch is freely rotatable, and the boom lifting mechanism is made of a coupling connected to each winch shaft, from an additional drum mounted on the winch shaft with free rotation, from the coupling control unit, from the main and an additional drum with a platform and from a rope, one end of which is connected to the boom, and the other end to an additional drum, with each clutch installed c) with the possibility of variable connection neniya main and auxiliary winch drum shaft.