Agricultural baler with tensioning device for a traction drive

An agricultural baler, comprising:

• at least one traction drive configured to drive one or more working units of an agricultural baler;
• and
• at least one tensioning device is assigned to the at least one traction drive, the at least one tensioning device comprising a tensioning member configured to adjust a tensioning force exerted by the at least one tensioning device on a traction means of the at least one traction drive;
• wherein the at least one tensioning member comprises a piston/cylinder unit, wherein a piston of the piston/cylinder unit is connected directly or indirectly via an additional lever to a tensioning means of the tensioning device, via which the tensioning force is applied to the traction means of the at least one traction drive;
• wherein a lubricant is supplied to the piston/cylinder unit for adjusting the tensioning force exerted on the traction means;
• wherein the piston/cylinder unit comprises a lubricant outlet configured to discharge at least a portion of the lubricant from the piston/cylinder unit;
• wherein the lubricant outlet of the piston/cylinder unit is fluidically connected to at least one lubrication point on the tensioning device;
• and
• wherein the at least one lubrication point on the tensioning device comprises one or both of a bearing point of the tensioning means or at least one bearing point of the additional lever.

An agricultural machine and baler combination comprising:

• an agricultural production machine;
• and
• an agricultural baler configured for being pulled by the agricultural production machine;
• wherein the agricultural baler comprises:
• at least one traction drive configured to drive one or more working units of an agricultural baler;
• at least one tensioning device is assigned to the at least one traction drive, the at least one tensioning device comprising a tensioning member configured to adjust a tensioning force exerted by the at least one tensioning device on a traction means of the at least one traction drive;
• and
• a control unit:
• wherein the at least one tensioning member comprises a piston/cylinder unit that includes a lubricant inlet configured to supply lubricant, wherein a piston of the piston/cylinder unit is connected directly or indirectly via an additional lever to a tensioning means of the tensioning device, via which the tensioning force is applied to the traction means of the at least one traction drive;
• and
• wherein the control unit is configured to control the lubricant inlet to supply the lubricant to the piston/cylinder unit for adjusting the tensioning force exerted on the traction means.