SU1219739A1 - Working equipment of hydraulic excavator - Google Patents

Description

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The invention relates to earthmoving machinery, in particular, to the working equipment of earthmoving machines intended for the development of frozen and dense soils, as well as used in the repair of road surfaces,

The purpose of the invention is to reduce the metal intensity of the equipment and increase the productivity of the excavator.

Fig, 1 shows the working equipment when loosening or snatching a trench; figure 2 - the same, with the separation from the array of the upper layer of frozen soil.

The working equipment consists of the boom 1, the arm 2, the ripper 3 with the front 4 and rear 5 teeth and the bucket 6. The hydraulic cylinder 7 connects the bucket 6 to the ripper arm 3. The working equipment is controlled by the hydraulic cylinder 8 and the hydraulic cylinder 9 of the handle 2.

The angle between the hydraulic cylinder 7 and the rear wall of the bucket 6 is set to 90 when the rear teeth 5 of the ripper 3 are located from the cutting edge of the bucket 6 at a distance of H 0, where q is the bucket capacity.

Work equipment works as follows.

197: 395

(1 vyd (know the rod of the hydraulic cylinder 7, the rear teeth 5 of the ripper 3 are closed with the cutting edge of the bucket 6. The manipulator is bucket 6 and the ripper 3

5 by means of a hydraulic cylinder 8 or a hydraulic cylinder 9 when the hydraulic cylinder 7 is locked 7, the soil is simultaneously loosened and excavated, as

0 the bottom loosened the soil fills the bucket 6-,

If it is necessary to separate the strongest frozen soil from the array, the hydraulic cylinder 7 moves the ripper 3 to the position of the greatest distance from the bucket. A piece of soil is separated when the rear teeth 5 of the ripper 3 and the bucket 6 come together by means of a hydraulic cylinder 7.

30 At the location of the rear teeth 5 ripper 3 from the cutting edge of the bucket 6 at a distance of H 0 ,, that

corresponds to the largest size of a piece of frozen soil that can

It is placed in the excavator bucket, in order to ensure the destruction of the maximum layer of strong frozen soil, the greatest force is required on the teeth. This is ensured by the relative positioning of the rear wall of the bucket 6 and the hydraulic cylinder 7 at a right angle.

 2

Editor N. Dankulich

Compiled by A.GTztrakov Tehred I.Veres

Order 1301/41 Circulation 641Subscription

VNIIPI USSR State Committee

for inventions and discoveries f13035, Moscow, Zh-35, Raushsk nab ,, d, 4/5

Branch of PShPatent, Uzhgorod., St. Project, 4

Proofreader T. Kolb

Claims (1)

WORKING EQUIPMENT OF A HYDRAULIC EXCAVATOR, containing an arrow, a handle mounted on the latter with a common hinge bucket with front ^ side and rear walls and a cutting edge and a cultivator made in the form of a two-armed lever, on one of whose shoulders front and rear teeth are mounted, and hydraulic cylinders control bucket and cultivator, one of which is connected to the handle and with the free shoulder of the cultivator, characterized in that, in order to reduce the metal consumption of the equipment and increase the productivity of the excavator, swarm cylinder with one end pivotally connected to the rear wall of the bucket, and the other - the free ripper shoulder, the angle between the second cylinder and a rear wall of the bucket is set to 90 ^e at the location of the rear ripper teeth of the cutting edge of the bucket at a distance of H = 0,8 J ~ q, where q is the capacity with m GS with>