Deere & Company

Daniel Joseph Goodman

James C Walters

Craig Allen Richardson

David LaVerne Sprinkle

Jerry L Krafka

Philip Carl Fernandez

Hydraulic flow to tractor attachments such as a sweeper, snow thrower, breaker, auger or cold planer may be increased by diverting pressurized hydraulic fluid from the auxiliary pump. A diverter valve between the auxiliary pump and the auxiliary circuit of the loader hydraulic system may direct flow to either the backhoe hydraulic system, the rockshaft hydraulic system, or the auxiliary circuit of the loader hydraulic system. The additional flow from the auxiliary pump is provided at a mid-inlet position and is not available to the loader boom or bucket circuits, to preserve tractive horsepower needed during loader work.

Increasing hydraulic flow to tractor attachments

A wobble drive for imparting reciprocating motion to a sickle bar includes a wobble drive shaft rotatable about a first axis and having a cylindrical wobble section formed about an axis making an angle of about 14.5.degree. to the first axis. A toroidal wobble shaft bearing housing is mounted on the wobble section by a set of wobble bearings having their outer races pressed into the bearing housing. An output yoke is coupled to the wobble shaft bearing housing for transmitting the oscillatory motion of the housing, caused by rotation of the drive shaft, to a swing arm fixed to an end of a shaft portion of the yoke. The coupling of the yoke to the wobble bearing housing is accomplished by a pair of headed spindle pins inserted, from the inside out, through pin bores provided at diametrically opposite locations in the wobble shaft bearing housing, and into respective yoke bearings mounted in the ends of a pair of yoke limbs that are joined to the yoke shaft portion. The heads of the spindle pins are respectively received in counterbored sections at the radially inner ends of the pin bores and these counterbores are blocked by outer races of the set of wobble bearings carried by the wobble bearing housing. The pins are each stepped to form first and second sections of different diameters with the radially inner section being larger than the radially outer section and sized for an interference fit with the bearing housing and with the radially outer sections being longer than the pin bores so as to permit the pins to be freely manually inserted through the pin bores and partially into the pin bearings carried by the yoke limbs, whereby the bearing housing and output yoke may be properly aligned one with the other prior to the pins being mechanically pressed into the pin bores.

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Martinez, GA, United States of America

Daniel Joseph Goodman