SU979583A1 - Working member of earth=moving machine - Google Patents

Description

(54) WORK BODY OF THE DIGGER MACHINE

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The invention relates to earthmoving machinery and is intended for use in construction on machines producing soil.

A working tool is known that contains a faceplate and balls with washers, in which, in order to reduce the resistance to rock destruction, the cones are placed in the nests of the tangent washers, and the trunnions rest on the concentric projections of the faceplate 1.

The disadvantage of this working body is that the development of the rock is carried out over the entire cross section of the face, equal to the diameter of the faceplate. In this regard, the energy intensity of the process of developing a rock due to the need for its grinding is relatively large.

The closest technical solution to the invention is the working equipment of the earth-moving machine, which contains a bucket consisting of two hingedly connected flaps with front edges and a drive for opening them, a skeleton and a yoke 2.

The disadvantage of this equipment is the relatively high power consumption of cutting the soil and the unsatisfactory reliability of the bucket associated with the design of the bucket of the two cusps involved in cutting the soil.

The aim of the invention is to reduce the cutting power consumption of the soil and increase the reliability of the working equipment.

The goal is achieved by the fact that the working equipment of the earthmoving machine, containing a bucket consisting of two hingedly connected shutters with front edges and a drive for their opening, a frame and a traverse, is provided with a cutter around the perimeter.

10 a body having a drive and located in front of the end edges of the valves, which in cross section and closed position have the formula of the closed perimeter of the cutting body.

FIG. 1 shows an example of a constructive implementation of the working body; in fig. 2 - the same section.

Claims (2)

The working equipment consists of a frame 1 with a longitudinal axis 2, on which the shutters 3 and 4 are hinged, which in the closed position form a bucket cavity 5 for receiving soil. The flaps have a bottom 6, which protects the ground from falling out, and is also equipped with a drive unit 7. On the frame 1, the cutting unit 8 is attached with a drive 9 for its rotation. Work equipment is mounted on the traverse 10 of the single-bucket excavator arm. The cutting body 8 is located in front of the end edge 11 of the bucket formed by the edges of the valves. The device works as follows. Working equipment is lowered to the ground and include the drive of the cutting body. The force is created along the longitudinal axis of the digging, under the action of which the working equipment is buried in the ground. Moreover, its further progress along the longitudinal axis allows one to fill the entire cavity with soil. To excavate the working equipment from the bottom, stop its feed along the longitudinal axis and instead lift it together with the ground from the bottom without turning off the drive of the cutting perimeter. Due to this, pruning of the soil is done. Then, with the aid of water 7, flaps 3 and 4 are opened, and the soil freely falls out of the working organ. This technical solution allows to reduce the energy intensity of the digging process. Unlike traditional bucket filling with a layered cut, the working equipment cuts the prism of the soil without destroying the entire volume. The destruction of the soil is carried out only along the outer perimeter of the prism, and the rest of the soil in the prism is not destroyed in the process of digging. Consequently, the digging process consumes significantly less energy. Deployable flaps facilitate soil unloading and provide improved cleaning of the bucket walls. This working equipment allows the passage of narrow trenches. In this case, the sash, copying the profile of the cutting perimeter, provide a complete selection of the soil. Due to the absence of such elements as fixed teeth, which are present, for example, in an excavator bucket, no loosened soil remains at the bottom of the trenches and almost no cleaning of the bottom of the trenches before laying the building elements. Due to the absence of significant dynamic loads due to a decrease in the translational speed of the working body in comparison with the excavator bucket, the dynamic loads on the working equipment during digging are reduced. This makes it possible to lighten the steel structure, since only the front part of the bucket perceives loads from digging efforts, and its rear part ensures the selection and transportation of the soil. Claims The working body of a milk-washing machine containing a bucket consisting of two hingedly connected shutters with end edges and a drive for opening them, a frame and a traverse, characterized in that, in order to reduce the energy intensity of cutting the soil and increase its reliability, the working body provided with a cutting body closed around the perimeter, having a drive and located in front of the end edges of the valves, which in the cross section and closed position have the shape of a closed perimeter of the cutting body. Sources of information taken into account during the examination 1. USSR author's certificate No. 277681, cl. E 21 C 27/22, 1969. 2. USSR author's certificate number 534552, cl. E 02 F 3/40, 1972 (prototype).