Bar is a working body of some machines (mainly used in mining and earthworks ), consisting of a guide frame and a cutting chain moving in it, containing fists with fan-shaped nests for cutters or loading blades. Depending on the number of trims connecting the fists, one or two-blade cutting chains are distinguished. There are also chains without straps, with articulated fists; such chains are called planarless. Bar working bodies were initially used mainly in mining on cutting machines , but then they found application in the construction of railways , and later began to be widely used in construction and public utilities , in particular, trench excavators , machines for loosening soil, etc. [ 1] [2] [3] [4] .
Usage
In mining, machines with a bar working body are used on cutting , cutting -bulk , bulk , and mountain combines . With their help, cuts (notch slots) are created and other works are performed [1] [4] .
Bar machines used in earthworks are used to cut trenches or crevices in the ground. The working body of the bar machine is placed in a vertical plane, while the machine moves in a horizontal plane. Bar tools are often mounted on a tractor or other self-propelled chassis. The main tasks of bar machines are the creation of trenches (when laying cables , pipelines , the organization of drainage ), as well as the loosening of hard or frozen soil in the process of its development. Machines equipped with a bar working body are distinguished by high productivity , simplicity of design and ease of operation [3] [5] .
See also
Bar machine
Notes
- ↑ 1 2 Bar // Angola - Barzas. - M .: Soviet Encyclopedia, 1970. - ( Great Soviet Encyclopedia : [30 vol.] / Ch. Ed. A. M. Prokhorov ; 1969-1978, vol. 2).
- ↑ B. B. Bakenov, S. K. Aliszhanov, A. B. Bakenova. Building norms and rules // Department of technical regulation and new technologies in the construction of the Committee for Construction and Housing and Communal Services of the Ministry of Industry and Trade of the Republic of Kazakhstan (MIT RK). - 2005 .-- S. 9 .
- ↑ 1 2 Yu. Petrov. Bar soil cutters // Fixed assets: Journal. - 2005. - No. 6 .
- ↑ 1 2 Article “Bar” // Mountain Encyclopedia / E. A. Kozlovsky .. - Moscow: Soviet Encyclopedia, 1984. - T. 1. - ISBN ISBN 5-85270-007-X .
- ↑ Machines for the development of frozen soils . http: //stroy-technics.ru.+ Date of treatment October 26, 2013.