Drive system for a self-propelled harvesting machine

Patent metadata

Field	Value
Publication number	US-9635812-B2
Application number	US-201514729503-A
Country	US
Kind code	B2
Filing date	Jun 3, 2015
Priority date	Jun 6, 2014
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A drive system for a self-propelled harvesting machine includes a drive engine, designed as an internal combustion engine, a transfer gearbox driven by the drive engine that includes a first driven pulley which is disposed on a drive shaft for driving at least one drive pulley of a working mechanism using a first belt, and at least one hydraulic pump for driving a further working mechanism. A second output pulley is assigned to the transfer gearbox and drives the at least one hydraulic pump using a second belt.

First claim

What is claimed is:

1. A drive system for a self-propelled harvesting machine, comprising:
a drive engine designed as an internal combustion engine;
a transfer gearbox that is driven by the drive engine; and
a first and a second hydraulic pump;
a main drive train that comprises mechanically driven working mechanisms; and
an auxiliary drive train that comprises hydraulically driven working mechanisms;
wherein the transfer gearbox comprises a first driven pulley, that is disposed on a drive shaft and that directly drives the mechanically driven working mechanisms of the main drive train by a first belt, and a second driven pulley that is drivably connected to the first hydraulic pump and the second hydraulic pump by a second belt, and
wherein the first hydraulic pump drives a first one of the hydraulically working mechanisms and the second hydraulic pump drives a second one of the hydraulically driven working mechanisms.

2. The drive system according to claim 1 , wherein the second driven pulley is disposed parallel to the first driven pulley.

3. The drive system according to claim 1 , wherein the first hydraulic pump and the second hydraulic pump of the auxiliary drive train are designed as a tandem pump and wherein the tandem pump is driven by a common first pump drive pulley by the second belt.

4. A forage harvester comprising a drive system according to claim 1 .

5. The drive system according to claim 1 , wherein the first one of the hydraulic working mechanisms of the auxiliary drive train is a front attachment and the second one of the hydraulic working mechanisms of the auxiliary drive train is an intake conveyor mechanism.

6. The drive system according to claim 5 , wherein the second belt drives a second pump drive pulley for driving a third hydraulic pump that is used to drive a hydraulic pick-up drive of the front attachment, and wherein the front attachment is designed as a pick-up.

7. The drive system according to claim 6 , wherein the second pump drive pulley is engaged using a clutch.

8. The drive system according to claim 7 , wherein the first hydraulic pump, the second hydraulic pump and the third hydraulic pump are disposed on a common support.

Assignees

• Claas Selbstfahrende Erntemaschinen Gmbh

Inventors

• Schiewer Stefan
• Krauss Andreas
• Furmaniak Jan

Classifications

• Y10T74/19037

  One path includes fluid drive · CPC title

• A01D69/03

  fluid · CPC title

• A01D69/06

  Gearings · CPC title

• F16H2047/025

  the fluid gearing comprising a plurality of pumps or motors · CPC title

• F16H47/02

  the fluid gearing being of the volumetric type · CPC title