Bulldozer non-rotating T-170

Contents

Introduction

Building on Course Project

1. Design Overview

2. Selecting Basic Parameters

3. Traction calculation

4. Calculation of push bar

Conclusion

List of used literature

Introduction

The large and growing scale of construction is ensured by the use of high-performance construction and road machines, complex mechanization and automation of construction production. Currently, a large fleet of various construction and road machines has been created, which is systematically replenished with new and more advanced machines.

To perform earthworks, universal and specialized construction machines have been created - excavators, staplers, bulldozers, graders, auto graders with lightweight control and convenient cabins. In this work, we will consider bulldozers in more detail.

Bulldozer - an earth-moving machine consisting of a basic tractor and bulldozer (mounted) equipment, designed to cut and move soil and plan the developed surface.

Bulldozers are used in the construction of embankments, backfilling trenches and ditches, the development of blown rock soils, the movement and stacking of bulk materials, the supply of stone materials to the feeders of drillers, the cleaning of territories from slag, garbage and snow, the planning of slopes, etc.

Bulldozers as mounted equipment for tractors, tractors and other basic machines are widespread, which is explained by the simplicity of their designs, high productivity, the ability to use them in a wide variety of soil and climatic conditions and the relatively low cost of the work performed.

The purpose of this course project is to carry out the traction calculation of the DET250 tractor with non-rotating dump and the strength calculation of the pushing bar, as well as the selection and analysis of structures, the selection of the main parameters of the tractor

Conclusion

During the course project, he studied the possible structures of bulldozers, as well as the classification of bulldozers according to various characteristics and parameters. In addition, he selected and calculated the main parameters of the bulldozer, adjusted them according to standard values. He made a traction calculation of the bulldozer, as a result of which he found out that the traction force developed by the bulldozer was enough to perform work under given conditions. Calculated the dump control mechanism; determined the force acting on it when accidental loads occur. According to the received data, he chose a hydraulic cylinder for lifting the dump, as well as a hydraulic pump, which will ensure uninterrupted operation of the dump control mechanism.