Rectangular Baler

Patent metadata

Field	Value
Publication number	US-2016165804-A1
Application number	US-201414909266-A
Country	US
Kind code	A1
Filing date	Jul 17, 2014
Priority date	Aug 1, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

An agricultural baler has a plunger for compressing harvested material to a bale in a chamber, a crank mechanism connected to the plunger for the purpose of driving the plunger, wherein the crank mechanism comprises at least one first crank and at least one second crank, a drive mechanism for driving the first crank and the second crank, wherein the drive mechanism is configured such that, when the first and second crank are driven, the first crank and the second crank rotate in opposite directions.

First claim

1 . Agricultural baler, comprising:
a plunger for compressing harvested material to a bale in a chamber; a crank mechanism connected to the plunger for the purpose of driving the plunger, the crank mechanism comprises: at least one first crank and at least one second crank and a drive mechanism for driving the first crank and the second crank; wherein the drive mechanism is configured such that, when the first and second crank are driven, the first crank and the second crank rotate in opposite directions.

2 . Agricultural baler as claimed in claim 1 , wherein
the first crank and the second crank rotate respectively in a plane extending at least in a vertical direction.

3 . Agricultural baler as claimed in claim 1 , wherein
the first crank and the second crank are connected to the plunger by respectively a first transmission construction and a second transmission construction.

4 . Agricultural baler as claimed in claim 3 , wherein
the respective transmission constructions engage at a distance from each other on the plunger.

5 . Agricultural baler as claimed in claim 4 , wherein
the plunger is mounted for tilting around a rotation axis; and the respective transmission constructions engage at a distance from each other on the plunger on either side of the rotation axis.

6 . Agricultural baler as claimed in claim 4 , wherein
the plunger is divided into at least a first plunger part and a second plunger part which are mounted displaceably relative to each other; and the first transmission construction is in engagement with the first plunger part and the second transmission construction is in engagement with the second plunger part.

7 . Agricultural baler as claimed in claim 4 , wherein
the first transmission construction comprises a first drive rod; and the second transmission construction comprises a second drive rod; and wherein: the first drive rod is in engagement at a first end thereof with the first crank and in engagement at the second end thereof with the plunger; and the second drive rod is in engagement at a first end thereof with the second crank and in engagement at the second end thereof with the plunger.

8 . Agricultural baler as claimed in claim 1 , wherein the drive mechanism comprises:
a first drive line for driving the first crank; a second drive line for driving the second crank; and
wherein
the first drive line and the second drive line are coupled for simultaneous driving of the first crank and the second crank.

9 . Agricultural baler as claimed in claim 8 , wherein the first drive line comprises a first toothed wheel and the second drive line comprises a second toothed wheel; and
wherein the first toothed wheel and the second toothed wheel are both in engagement with a coupling toothed wheel for a simultaneous driving of the first crank and the second crank.

10 . Agricultural baler as claimed in claim 9 , wherein
at least one of the first toothed wheel, the second toothed wheel and the coupling toothed wheel is a bevel wheel.

11 . Agricultural baler as claimed in claim 10 , wherein
each of the first toothed wheel, the second toothed wheel and the coupling toothed wheel is a bevel wheel.

12 . Agricultural baler as claimed in claim 10 , wherein
the rotation axis of the first toothed wheel and the rotation axis of the second toothed wheel coincide; and the rotation axis of the coupling toothed wheel extends perpendicularly relative to the rotation axis of the first toothed wheel and the rotation axis of the second toothed wheel.

13 . Agricultural baler as claimed in claim 12 , wherein
the first crank and the first toothed wheel are arranged on a first crankshaft; the second crank and the second toothed wheel are arranged on a second crankshaft; and the coupling toothed wheel is arranged on an input shaft for connecting the coupling toothed wheel to an output shaft of a power take-off device.

14 . Method for driving a plunger of an agricultural baler, comprising of:
moving the plunger reciprocally along a linear path by a crank mechanism comprising at least one first crank and at least one second crank, wherein the first crank and the second crank are rotated in opposite directions.

Assignees

• Cnh Ind America Llc

Inventors

• Tack Johan

Classifications

• B30B9/3021

  Press rams · CPC title

• B30B1/268

  using a toggle connection between driveshaft and press ram · CPC title

• B30B1/266

  Drive systems for the cam, eccentric or crank axis · CPC title

• B30B9/306

  Mechanically-driven presses · CPC title

• A01F15/0841 Primary

  Drives for balers · CPC title