RU2500858C1 - Bucket of dredger - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: bucket of a dredger comprises a bottom with a cutting edge, side and rear walls. Side walls of the bucket are connected to the bottom at the angle of 45°. Thickness of side walls and the bottom reduces along the length of the bucket, starting from the end of the cutting edge. In the front part the cutting edges of the walls and bottom are sharpened.

EFFECT: increased efficiency and quality of cleaning due to reduction of traction resistances and application of a bucket of trapezoidal cross section.

4 dwg

Description

The invention relates to a device for cleaning channels from sediment, siltation and vegetation. This device can also be used for digging soil and can be used in construction and land reclamation.

Known bucket excavator dragline, comprising a bucket body associated with an additional working body. Auth. testimonial. USSR No. 676693.

The disadvantage of this design is the inability to achieve free cutting during operation, which leads to an increase in traction resistance.

A technical solution is known - a scrubber bucket, including a bottom with a cutting edge, rear and side walls. (Mer I.I. Workshop on reclamation machines. Textbook. - M .: Kolos, 1984, p. 140).

The closest technical solution is the channel cleaner bucket (Patent No. 2149954. Publ. 27.05.2000. Bull. No. 15), which is equipped with disks for cutting slots mounted with the possibility of rotation around its axis, located in front of the bucket in the plane of the side walls of the bucket and rigidly connected with them.

The disadvantages of these designs include the fact that the digging of soil, sediment and siltation in the drainage channels with a rectangular rectangular bucket will be carried out only along the bottom (Fig. 1, zone I), and sediments from the parts of the slopes adjacent to the bottom are cut off (Fig. 1, zone II), which, in turn, after a certain period of time will also be at the bottom. The side walls and the bottom have a constant thickness along the length - accordingly, friction against the soil also occurs along the entire length, which causes an increase in cutting resistance. Such channel cleaning, which requires great traction and re-carrying out technological operations, is not effective.

The aim of the invention is to increase the productivity and quality of cleaning by reducing traction resistance and the use of a trapezoidal bucket.

This goal is achieved by the fact that the side walls are connected to the bottom at an angle of 45 °, forming a trapezoidal section that copies the bottom and adjacent parts of the channel slopes, the side walls and the bottom have a sharp edge of the cutting edge starting from the end of the cutting edge, the thickness of the side walls and the bottom decreases along the length of the bucket.

The invention is illustrated by drawings, where

Figure 1 - the base bucket of the scrubber in operation;

Figure 2 - channel scrubber bucket - front view;

Figure 3 - bucket cleaner - isometry;

Figure 4 is a diagram of a section of the side wall of the proposed bucket.

The scrubber bucket includes a bottom with a cutting edge 1, side walls 2, a rear wall 3, the side walls being connected to the bottom at an angle of 45 °, thereby forming a trapezoidal section. It is known that the largest number of drainage channels has a trapezoidal cross section with a slope of 1: 1, this ratio for the bucket is achieved by installing side walls at an angle of 45 °.

The scrubber bucket operates as follows. Rigid guides along which the bucket moves longitudinally to the channel axis, with the help of an arrow pivotally connected to the base tractor, are lowered to the bottom of the channel. Using the support legs, the guides are fixed properly to ensure a rectilinear movement of the bucket, taking into account the required slope. Before the bucket starts, a certain chip thickness is set. The bucket moves along rigid guides, cutting through a layer of soil, sediment and silt from the bottom and from the slopes adjacent to it. In the direction of travel, the bucket is filled with soil with sediment and vegetation. Further, the filled bucket rises with the help of an arrow and is unloaded to the dumping site. It is known that the process of excavating the soil with a bucket consists of cutting the soil with the bottom and side walls and filling the bucket itself. A significant part of the effort is spent on cutting. When using the proposed technical solution, the external friction of the side walls and the bottom of the bucket against the ground during cutting is minimal. Such a constructive solution, which includes two main ideas - the use of a trapezoidal section and narrowing of the side walls and bottom, allows to increase productivity by reducing traction resistance and grasping sediment and siltation with a trapezoidal section bucket not only from the bottom, but also from the slope parts adjacent to the bottom . The decrease in traction resistance is explained by the minimum value of external and internal friction of the tapering side walls and bottom against the soil or sediment.

The present invention can be used in the working equipment of various types of excavators.

Claims (1)

The channel cleaner bucket, including the bottom and side walls with cutting edges, and the rear wall, characterized in that the side walls are connected to the bottom at an angle of 45 °, forming a trapezoidal section that copies the bottom and adjacent parts of the channel slopes, the side walls and the bottom are sharpened cutting edge, starting from the end of the cutting edge, the thickness of the side walls and the bottom decreases along the length of the bucket.

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