SU889802A1 - Scraper - Google Patents

Description

(54) SCRAPER

one

The invention relates to earthmoving machinery.

Known scraper, including bucket with front flap, side walls, rear wall and a movable bottom 1.

The disadvantage of this scraper is that the full filling of the bucket is carried out by forcing the soil from the front to the back, therefore additional energy is needed.

The closest technical solution to the invention is a scraper comprising a traction frame, a bucket containing a retractable rear wall, a front flap, pivotally connected front and rear sections, each with hydraulic cylinders, each consisting of a bottom with a cutting knife and side walls and the rear section is hingedly connected to the traction frame 2.

The disadvantages of this scraper are the implementation of unloading using a special mechanism having an extended working stroke, loading the rear part of the bucket according to the method of operation of the bulldozer blade, which increases the resistance to digging compared to traditional front loading, as well as closing the rear loading slot by extending the rear wall forward, which reduces the effective bucket volume.

The purpose of the invention is to increase productivity.

This goal is achieved by the fact that the joint of the section joints is located in the upper part of the bucket, the cutting knife of the rear section is fixed on the front part of the bottom.

ten

FIG. 1 shows a scraper; in fig. 2 - the same, top view; in fig. 3 - the same, in the process of filling the back of the bucket; in fig. 4 is the same in the process of filling the front of the bucket.

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Claims (2)

The scraper has a pulling frame 1, a front 2 and a rear 3 bucket sections interconnected by a hinge 4. The rear section 3 rests on the rear axle 5 and has a rear wall 6 controlled by a hydraulic cylinder 7. The bottom of the rear section in the front part has a bottom plate with a cutting knife 8 and connected with the side walls of the rear section. The rear section 3 is lowered and raised using the hydraulic cylinder 9, interacting with the rear section bucket beam 10. The front section 2 by means of levers 11, located on the side walls of the section, is hinged to the side walls of the rear section and connected to the hydraulic cylinders 12. In the front part of the bucket, a flap 13 is installed, controlled by hydraulic cylinders 14. The scraper works as follows. Initially, the filling of the rear bucket section 3 occurs. To do this, using the hydraulic cylinder 9, the rear section is lowered, ensuring the cutting of the soil by the cutting knives 8 of the rear section. The front section 2, together with the flap 13, is in a raised position, forming a gap between the bottom of the front section and the cutting knives 8 of the rear section, where the cut soil moves. At this point, the front section performs the functions of the front flap. Upon completion of filling the rear section with the help of hydraulic cylinders 12, lower the front section up to the stop of its bottom in the cutting knives of the rear section. Pre-valve 13 of the front section open. Cutting knife 15 of the front section cuts off the soil that fills the front section of the bucket. The thickness of the cutting chips is regulated by hydraulic cylinders 9. At the end of the ground set, the flap 13 closes, the bucket rises to the transport position, and the soil is transported to the place of discharge. Unloading of the soil is carried out as follows. First, the flap 13 opens, and a portion of the soil is poured into the slot formed. Then, when the scraper moves, the front section is lifted to the upper position, and the ground spills into the gap formed between the bottom of the front section and the rear blades. From the rear section, the ground is pushed by the rear wall 6 into the gap between the sections. Claims of the Invention A scraper comprising a traction frame and a bucket containing a retractable rear wall, a front wall, pivotally connected and connected by hydraulic cylinders front and rear sections, each of which has a bottom with a cutting knife and side walls, and a rear section pivotally connected to a traction frame, characterized in that, in order to increase productivity, the joint of the section joints is located at the top of the bucket, and the cutting knife of the rear section is fixed at the front of the bottom. Sources of information taken into account during the examination 1. USSR author's certificate No. 585261, cl. E 02 F 3/64, 1977. 2. USSR author's certificate number 641041, cl. E 02 F 3/64, 1977 (prototype).