| 摘要 |
FIELD: agricultural engineering. SUBSTANCE: hitch linkage has upper axle, turning shaft 2 with fitted on lift arms 3, bracket with eyes and rotating fork inside bracket installed coaxially on turning shaft, longitudinal arm installed on axle of hydraulic cylinders and connected by pin with bracket, central link 9 with replaceable heads 10 connected by pin with bracket, lower axle 12, lower links 13 with replaceable heads 14 connected by lift links 15 with lift arms and hydraulic cylinders connected with atop arms. To provide hitching of tractor with implements, for instance those of class 3 or 4, central link 9 is connected with bracket by pin fitted in eyes. if tractor is to be hitched with implements of the following class, for instance class 5, and to provide optimum loading of tractor, changing of kinematic parameters of hitch linkage and its coupling triangle is performed by connecting central link 9 with fork rotating on shaft by means of pin. In each case replaceable heads 10 and 14 with hinge joints corresponding to class of implement are installed in central and lower links. EFFECT: enlarged operating capabilities, increased power output of tractor, improved loading of tractor. 2 cl, 3 dwg |
