Patent RU-2761661-C2 (RU)
Title: Chassis with tillage tools with limited drift
Inventor: DOLE DAMIEN
IPC: A01B73/06
Filed: 2018-04-13
Granted: 2021-12-13
Abstract: FIELD: agriculture. 
     SUBSTANCE: chassis with tillage tools mounted on it contains a central drawbar, a chassis case connected to the end of the drawbar, and at least one side rear section connected to the chassis case and carrying tools. The chassis case is supported by main support wheels, and at least one side rear section is supported by at least one auxiliary support wheel. The chassis can take a maneuvering state, in which at least one side rear section is deployed relatively to the drawbar and removed from the ground so that tools do not touch the ground. In the maneuvering state, at least one auxiliary support wheel can occupy at least: a position of movement essentially in a straight line of the chassis, and a position of rotational movement, in which the absolute value of the distance between at least one auxiliary support wheel and a plane essentially orthogonal to the ground and passing through the axis of rotation of main support wheels is less than in the position of movement essentially in a straight line of the chassis. The chassis contains means for controlling the movement of at least one auxiliary support wheel or the movement of at least one side rear section to bring at least one auxiliary support wheel into a rotational motion position, when the chassis rotates. A method is proposed for moving a chassis with tillage tools mounted on it, containing a central drawbar, a chassis case connected to the end of the drawbar, and at least one side rear section connected to the chassis case and carrying tools. The chassis case is supported by main support wheels, and at least one side rear section is supported by at least one auxiliary support wheel. The chassis can take a maneuvering state, in which at least one side rear section is deployed relatively to the drawbar and removed from the ground so that tools do not touch the ground. In the maneuvering state, at least one auxiliary support wheel can occupy at least: a position of movement essentially in a straight line of the chassis, and a position of rotational movement, in which the absolute value of the distance between it and the plane essentially orthogonal to the ground and passing through the axis of rotation of main support wheels is less than in the position of movement essentially in a straight line of the chassis. The chassis additionally contains means for controlling the movement of at least one auxiliary support wheel or the movement of at least one side rear section. The method contains: a stage of configuring the chassis into a maneuvering state, a stage of actuating means for controlling to move at least one auxiliary support wheel from one to another of its positions of movement essentially in a straight line of the chassis and rotational movement.  
     EFFECT: invention ensures the exclusion of damage to the ground in the maneuvering state of the chassis, reduction in the drift of support wheels, as well as simplification of the design and increase in the reliability of the chassis. 
     8 cl, 14 dwg