STUDY OF FACTORS THAT AFFECT THE STABILITY OF THE BUCKET CANAL CLEANER ON RIGID GUIDES

The research aim is to determine the stability of a bucket canal cleaner on rigid guides РР303 depending on the change in the boom extension (handling radius), the operating length of the bucket during soil withdrawal, and the counterweight arm. The working equipment of the canal planer is installed as a side hitch on the caterpillar tractor ДТ –75. In this case, the fuel tank acts as an additional counterweight. It is also possible to use the ВТК-90ТГ crawler tractor as a base. The main elements of the working equipment of the canal cleaner are a telescopic composite boom, rigid guides with a bucket mounted on the boom, and a counterweight with a variable reach. Changing the characteristics of structural elements affects the machine stability during
operation. The canal cleaner stability was determined with a three-factor research method, which allows to assess the value of the most signifi cant factor. The results of experimental studies were processed using statistical analysis methods. It has been shown that the presented mathematical model fairly correctly describes the values of the stability coeffi cient of the canal cleaner. It has been established that the greatest infl uence on stability during operation of the PP-303 canal cleaner is exerted by a change in the counterweight offset. A signifi cant infl uence of the boom extension (operating radius) and the position of the working
element on the rigid guides is observed when they are jointly considered. The authors conclude that during the modernization of the working equipment of the PP-303 canal cleaner, one should take into account the counterweight size and location.