RU31795U1 - Excavator dragline bucket - Google Patents

Abstract

An excavator-dragline bucket comprising a housing made of a front with a bottom and a cutting edge and from a rear with a bottom and a cutting edge, the side walls of which are pivotally connected to each other in the middle upper part of the housing, and a harness containing a traction, hoisting and tipping ropes characterized in that the front part of the bucket is provided with an arch, the side walls of the front and rear parts are interconnected by a flexible chain of variable length, the traction rope is connected to the front part of the bucket, and the hoisting rope is mounted on the tipping unit and ears of the side walls of the front.

Description

2002133373

: shrishch1Sh11111111111111 |

 -Q l. 1chi "Ч1ир ritiB 1 (111 Immftt (I

Utility model MKI EO2F 3/50, 3/48

EXCAVATOR BUCKET - DRAGLINE.

The utility model relates to earthmoving machines, namely to excavators equipped with a dragline bucket.

The excavator bucket is known as a dragline, which consists of two sections with knives pivotally connected to each other, the front section is connected to the traction and tipping ropes, and the rear section to the lifting rope (USSR AS No. 1051167, class EO2F 3/48 , 1983).

However, the rotation of the front section during operation, although it eliminates soil loss during transportation of the second section above the knife, worsens the unloading process, since the trailing edge of its bottom is in this way along the ground.

The closest is the bucket of the excavator - dragline according to ASSSSSR No. 1559054, class. EO2F 3/48, 1989, which consists of pivotally connected front and rear sections of the bucket with knives, sections by lifting ropes are connected to the tipping block, and the tipping rope is connected to the hinge of their fastening. The traction rope is connected to the rear section of the bucket through the support bushings and the adjustable stops.

However, the operation of such a bucket is associated with increased wear of the traction rope, which will be abraded in the support sleeve and on the side walls, and the digging process is associated with an increased path of movement, since the front section falls onto the ground with the trailing edge of the bottom, and not with the knife. All this reduces the efficiency of using the bucket.

The purpose of the utility model is to increase reliability and productivity.

a common edge and a rear part with a bottom and a cutting edge, the side walls of which are pivotally connected to each other in the middle upper part of the body, and the harness containing the traction, lifting and tipping ropes, the front part is provided with an arch, the side walls of the front and rear parts are interconnected by a flexible a variable-length chain, the traction rope is connected to the front of the bucket, and the hoisting rope is mounted on the tipping block and the eyes of the side walls of the front part.

Figure 1 shows the bucket of an excavator - dragline during transportation (solid lines) and digging (dashed lines).

Excavator-dragline bucket includes a housing consisting of a front part with side walls 1, an arch 2, a bottom with a cutting edge 3, brackets 4 and a rear part with side walls 5, a rear wall 6 and a bottom with a cutting edge 7. The front and rear parts are connected using the hinge with an axis 8 and additionally connected by chains 9 of variable length, the ends of which are fixed on their side walls 1 and 5. The bucket is driven by a traction 10, tipping 11 and hoisting 12 ropes. The hoisting rope 12 is fixed at one end to the tipping block 13 and the other at the eye 4.

Such an excavator-dragline bucket works as follows:

At the beginning of digging, the tipping ropes 11 and hoisting 12 are loosened, and the traction 10 pulls and moves the bucket along the soil surface. In this case, the cutting edges 3 and 7 cut into the soil mass and cut out soil chips from the front cutting edge 3 of the bottom that freely enters the front of the bucket. Acting on the cutting edge 7 of the bottom of the back of the bucket, the soil rotates its back around the axis 8 counterclockwise with its pressure until the chain 9 is tensioned (the position is indicated by a dashed line in Fig. 1). After that, the bucket will move as a whole, and between the front part and the cutting edge 7 of the rear part is formed

a window through which the soil shavings cut by it will pass and fill the back of the bucket. The width of this window can be adjusted by changing the length of the chain 9.

When lifting the bucket into the transport position, pull the hoisting 12 and tipping ropes 11, and the bucket extends upward while maintaining a horizontal position. But at the same time, at the beginning of the lift, under the influence of gravity, the rear part rotates clockwise relative to axis 8, returns; it returns to its original position, blocking the window between the rear and front parts, which excludes soil spilling from the bucket. The unloading of the bucket proceeds in the usual way due to the weakening of the traction 10 and tipping 11 ropes and the tipping of the bucket by tipping the cutter; with its edge 3 down.

The proposed utility model provides increased productivity and reliability of the excavator bucket - dragline.

Applicant Organization:

VNIIGIM, t.,.

them. A.P. t / i /: & 4 l /. ijj, L: - - ..; ; - -: /: -.

.

Director of the Institute: Academician of RAAS B.M.Kizyaev

Claims (1)

An excavator-dragline bucket comprising a housing made of a front with a bottom and a cutting edge and from a rear with a bottom and a cutting edge, the side walls of which are pivotally connected to each other in the middle upper part of the housing, and a harness containing a traction, hoisting and tipping ropes characterized in that the front part of the bucket is provided with an arch, the side walls of the front and rear parts are interconnected by a flexible chain of variable length, the traction rope is connected to the front part of the bucket, and the hoisting rope is mounted on the tipping unit and ears of the side walls of the front.