초록 ▼

A tandem running gear on a self-propelled agricultural machine, in particular a combine, where in the front a drive axle (1) and on both sides thereof swing arms (3, 3A) are disposed under the chassis (2). The swing arms (3, 3A) can be charged by hydraulic work cylinders (8, 8A) in such a way that a

A tandem running gear on a self-propelled agricultural machine, in particular a combine, where in the front a drive axle (1) and on both sides thereof swing arms (3, 3A) are disposed under the chassis (2). The swing arms (3, 3A) can be charged by hydraulic work cylinders (8, 8A) in such a way that a respectively preset wheel load distribution between the drive wheels (5, 5A; 6, 6A) and the steered wheels (7, 7A) is attained using a measuring and control device for the hydraulic device.

대표청구항 ▼

In a running gear of a self-propelled agricultural machine having a chassis (2), with a rear steering axle (31) with two wheels (7, 7A) and with a front tandem running gear with a drive axle (1) pivotally supporting a swing arm (3, 3A) on each end, each swing arm carrying two drive wheels (5, 6; 5A,

In a running gear of a self-propelled agricultural machine having a chassis (2), with a rear steering axle (31) with two wheels (7, 7A) and with a front tandem running gear with a drive axle (1) pivotally supporting a swing arm (3, 3A) on each end, each swing arm carrying two drive wheels (5, 6; 5A, 6A) one disposed behind another, a double-acting hydraulic work cylinder (8, 8A) connected between each said swing arm and said chassis (2), so that by means of said cylinder the swing arm (3, 3A) can be pivoted in a controlled manner, the improvement comprising, at least two measurement value transmitters (27, 27A; 29, 29A; 11, 11A; 91, 91A; 93, 93A) disposed on the tandem running gear (1, 3, 5, 6), and control means (10) for receiving values from said value transmitters and determining appropriate drive wheel load values (R1, R2) on the drive wheels (5, 6; 5A, 6A) directly or indirectly and comparing said load values with respectively predetermined set values and outputting control signals, which act in a regulating way, to at least one multi-way control valve (25, 25A) for charging each said work cylinder (3, 8A).