Back to results
US 12,128,725 B2Granted
Method for setting the lift position of a machine frame of a ground milling machine, which machine frame is connected via lifting means to movement means, and ground milling machine
AssigneeBOMAG GmbH
InventorsAndré Hoffmann, Alice Dupont, Rafael Schomaker
Life of this patent
Estimating the term…
Abstract
A method for setting the lifting position of a machine frame of a ground milling machine, which machine frame is connected via lifting means to movement means, and to a ground milling machine.
Claims12
A method of operating a ground milling machine, comprising a machine frame connected via lifting means to movement means, the method comprising the steps of:
- a) detecting and monitoring an actual longitudinal inclination of the machine frame relative to a plumb-line direction with at least one longitudinal inclination sensor and transmitting the actual longitudinal inclination of the machine frame to a control unit;
- b) defining a target longitudinal inclination of the machine frame;
- c) then, if the actual longitudinal inclination deviates from the target longitudinal inclination, updating a lifting position of the lifting means in a controlled manner by the control unit, such that the actual longitudinal inclination is approximated to the target longitudinal inclination of the machine frame;
- d) upon the actual longitudinal inclination being approximated to the target longitudinal inclination, updating a height position of a discharge point of a height-adjustable conveyor belt of the ground milling machine in a controlled manner by the control unit;
- and
- wherein step c) is carried out depending on a limit value, such that a controlled updating is only performed
- if a difference limit value between the target longitudinal inclination and the actual longitudinal inclination is exceeded;
- and/or
- time-dependently after a fixed time interval.
6 more elements
A ground milling machine, comprising:
- a machine frame,
- a ground milling means,
- front movement means and rear movement means, wherein at least the front movement means or the rear movement means are connected to the machine frame in a height-adjustable manner via vertically adjustable lifting means each with an actuator;
- a height-adjustable conveyor belt;
- a drive device for driving the actuators of the lifting means;
- a control device configured to control lift adjustment of the lifting means by the actuators,
- wherein the control device comprises at least one longitudinal inclination sensor to determine a longitudinal inclination of the machine frame with respect to a plumb-line direction, and a control unit configured such that the control unit controls a lift adjustment of the lifting means as a function of a longitudinal inclination change of the machine frame and a height adjustment of a discharge point of the height-adjustable conveyor belt of the ground milling machine in response to the longitudinal inclination change of the machine frame, provided the longitudinal inclination change exceeds a defined limit value and/or defined time interval.
4 more elements
Dependencies are inferred from the claim text.