Traveling Mechanism for Agricultural Machines and Off-Road Vehicles Having an Endless Belt -Band Traveling Gear and a Corresponding Belt-Band Traveling Gear

Abstract

The invention relates to a spring-suspended, bearing force-optimized belt-band traveling gear ( 10 ) for ground vehicles, particularly for self-propelled agricultural machines and other off-road vehicles, comprising at least two outer deflection rollers ( 14, 15, 16, 17 ) over whose periphery an endless belt-band ( 22 ) rolls off, and at least one supporting roller ( 24 ) for supporting the belt-band section, which is in contact with the ground, between both deflection rollers ( 14, 15, 16, 17 ). A bogie truck ( 12, 13 ), in which the at least two deflection rollers ( 14, 15, 16, 17 ) are mounted in a manner that enables them to rotate, is supported against a body frame of the vehicle by means of a first fluidic suspension unit and/or damping unit. The at least one supporting roller ( 24 ) is supported on the bogie truck ( 12, 13 ) by means of a second fluidic suspension unit and/or damping unit. A fluidic coupling of the suspension units and/or damping units of the bogie truck ( 12, 13 ) is provided against the vehicle frame and the at least one supporting roller ( 24 ) mounted on the bogie truck ( 12, 13 ).

1 . A spring mounted belt-band traveling gear said belt-band traveling gear comprising at least two outer deflection rollers, an endless belt-band for engaging periphery of said outer deflection rollers over whose periphery said endless belt-band rolls off, at least one supporting roller for supporting a section of said endless belt-band in contact with the ground between said at least two outer deflection rollers, and a bogie for rotatably mounting said at least two outer deflection rollers, said bogie supported against a body frame of a vehicle by means of a first fluidic suspension and/or damping unit, and wherein the at least one supporting roller is supported on the bogie by means of a second fluidic suspension and/or damping unit, said belt-band traveling gear further comprising a fluidic coupling of the suspension and/or damping units by means of which the bogie and the at least one supporting roller mounted on said bogie are supported against the body frame of the vehicle.  
   
   
       2 . The belt band traveling gear according to  claim 1 , comprising two or more supporting rollers of the same or different sizes, each of said supporting rollers being arranged for supporting the belt-band section, which is in contact with the ground, between both the deflection rollers.  
   
   
       3 . The belt band traveling gear according to  claim 1 , wherein the fluidic suspension and/or damping units comprise at least one hydraulic linear unit each, which are coupled to one another fluidically on the pressure side.  
   
   
       4 . The belt band traveling gear according to  claim 1 , wherein the supporting rollers each have a rocker bearing.  
   
   
       5 . The belt band traveling gear according to  claim 1 , wherein the bogie is supported against the body frame of the vehicle by means of a rocker bearing.  
   
   
       6 . The belt band traveling gear according to  claim 1 , wherein an amplitude-dependent variation of the spring rate is provided.  
   
   
       7 . The belt band traveling gear according to  claim 1 , wherein the pressure fluid system of the suspension and/or damping units comprise a pneumatic, a hydraulic and/or a hydropneumatic pressure reservoir.  
   
   
       8 . The belt band traveling gear according to  claim 1 , wherein the traveling gear is designed as a triangular traction unit.  
   
   
       9 . The belt band traveling gear according to  claim 8 , wherein the triangular traction unit comprises a central overhead drive wheel.  
   
   
       10 . The belt band traveling gear according to  claim 1 , wherein the traveling gear is designed as a wedge-shaped traveling gear.  
   
   
       11 . The belt band traveling gear according to  claim 1 , wherein the traveling gear rocker is arranged in a laterally offset manner in relation to the belt-band.  
   
   
       12 . The belt band traveling gear according to  claim 1 , wherein the suspension and/or damping units are coupled to one another by means of a piping and valves so as to be able to achieve an active spring effect.  
   
   
       13 . The belt band traveling gear according  claim 1 , wherein the system pressure is adjustable.  
   
   
       14 . The belt band traveling gear according to  claim 1 , comprising means for level control by means of a path sensor at least on the rocker of the bogie and a correspondingly adjustable system pressure.  
   
   
       15 . The belt band traveling gear according to  claim 1 , wherein the accumulator is optionally decoupled from the fluid system.  
   
   
       16 . A traveling mechanism for a self-propelled agricultural machine, said traveling mechanism comprising at least two belt-band traveling gears according to  claim 1 , said belt-band traveling gears being arranged on opposing longitudinal sides of the vehicle.  
   
   
       17 . A ground vehicle, self-propelled agricultural work machine, having a traveling mechanism according to  claim 16 , which comprises at least two belt-band traveling gears are arranged on opposing longitudinal sides of the vehicle.