SU624993A1 - Hydraulic excavator work-performing gear - Google Patents

Description

one

This invention relates to earth moving machinery.

Known working equipment of the excavator, contained KOBIJI. pivotally connected with it (overhead cutter) mounted above the cutting edge of the bucket and connected to its power rotation 1.

The closest to the technical essence of the present invention is the working equipment of a hydraulic excavator, which contains a handle with a hirping of it and a pick and rychler, which are connected with a drive and rotation 2.

The aim of the invention is to improve the performance of the n; j: iecca development and the combining of the operations of destruction of the H1) full-time array, capturing and moving its pieces.

This is achieved by the fact that in the working equipment of the excavator the ripper is made in the form of a trident, the length of the middle tooth of which is longer than the length of the two extreme teeth.

FIG. 1 shows the working equipment of a hydraulic excavator; in fig. 2 given the view on stre.tke. L on fpg. one.

The working equipment of the hydraulic excavator 1 contains a handle 1 with a hinged arm and a ripper. 3 that are driven by turning them in the form of power squares 4 and 5. The ripper can be made in the form of a trident with (3) 6, 7, II, 8. The length of the middle tooth 7 of the trident is greater than the length of the two extreme 6

and 8. A bucket and a trident are mounted on the arms by means of a hinge 9 and levers 10 and I.

Works working equipment of the excavator as follows.

The working equipment is lowered onto the array under development until bucket 2 and teeth 6, 7 and 8 are in contact with it. Power cylinders 4 and 5 are activated, from which the trident teeth and the bucket turn relative to arm 1 around the cylinder 9

their mountings. In this case, the reactive forces of the soil discharge on the cutting edge of the bucket and the edges of the teeth of the trident mutually balance each other, excluding bending loads and excavator arms.

.- -wgs The pieces of the destroyed array are moved to the bucket by the teeth of the trident in the bucket, and in cjiynae destruction of the array by large speed these pieces are clamped between the teeth of the trident and the bucket. Further, the pieces of the destruction () of the array are immersed.

The peculiarity of the previous: one-piece equipment is its ability to destroy monolithic massifs, such as concrete coatings and brick masonry by cutting them, as well as by breaking down near-freezing road slabs of side stones. In this case, the operations of destruction of the array, capture and movement of its pieces are combined. So when loading, an ipprpp, a large building material and debris, the trident works in conjunction with a bucket as a flap and prevents large pieces from being taken out of the bucket.

When using predoms. () Working equipment, for example, on excavators EO-4121, EO-3322, 3-5015 taking into account .1 of their annual production of annual savings - Ai.

four

a cus e (| n |) scg on the development of a frozen ipynta, the composition of yy according to preliminary calculations about 30 (J million PB.

Claims (2)

Invention Formula The working equipment of a hydraulic excavator containing a handle with a bucket and ripper hinged to it, which are associated with their rotational drive, characterized in that, in order to increase the productivity of the development process by combining the operations of destroying a durable array, gripping and moving its pieces, the ripper is produced in the form of a trident, the length of the middle tooth of which is bol1) It is the length of the two extreme teeth. Sources of information taken into account in the examination: 1. US Patent No. 2470779, cl. 214-145, 1949. 2. USSR author's certificate number 377478. class, E 02 F 3/28, 1971. view A