| 摘要 |
FIELD: mechanical engineering; crawler tractors. ^ SUBSTANCE: proposed transmission of crawler tractor has two hydrostatic transmissions, each including adjustable pump and hydraulic motor connected by pressure and suction hydraulic lines. Pumps are mechanically connected with engine, and hydraulic motors, with driving sprockets. Sprockets are mechanically interconnected through additional gear mechanism. Said mechanism consists of interconnected first gear wheel freely fitted on shaft connecting first hydraulic motor with first sprocket, second gear wheel installed on shaft connecting engine with power takeoff shaft, third gear wheel rigidly installed on shaft connecting second hydraulic motor with second sprocket. First gear wheel is connected with shaft through clutch, and pressure hydraulic lines of both transmissions are connected by shutoff valve. ^ EFFECT: elimination of errors in ratio control mechanisms of right-hand and left-hand sides, improves straight-ahead motion. ^ 1 dwg |
