CONSTRUCTIONS OF TELESCOPIC SCRAPER BUCKETS AND THEIR FILLING TECHNOLOGY

Abstract

Problem statement. The complete filling of the bucket of the scraper “with a cap” due to the traction force of the base tractor is complicated and requires significant traction forces, which the base tractor is not able to develop, therefore pusher tractors or the coupling of scrapers to the scraper train and work according to the “pull-push” scheme used. In a separate direction, designs of scrapers with forced loading due to various intensifiers are developing − elevator loading, throwers, screw loaders, etc., but a significant drawback, in addition to the greater mass of the scraper and the need to select part of the torque from the engine shaft to drive the intensifier, is the need to eliminate of the intensifier from the bucket cavity when unloading the soil. Purpose of the article is to develop telescopic scraper buckets of increased capacity, which will allow filling of the scraper bucket “with a cap” only due to the traction force of the basic tractor without the use of a pusher tractor. The proposed bucket filling technology is carried out in three stages. At the first stage, the capacity of the front flap is filled with soil; on the second − removal of the rear wall to the extreme position of the telescopic section and filling the resulting space with soil; removal of the telescopic section with soil and the back wall to the maximum extreme position and filling the space formed with soil - on the third Conclusion. It is proposed the designs of telescopic type scraper buckets with increased capacity and their filling technology, which allows you to fill the bucket due to the traction force of the tractor, and the increased volume allows to increase the productivity of the scraper as a whole.