Abstract

A connection device for an agricultural machine includes a front having an input shaft coupled with an input yoke and installed passing therethrough, a rear body having an output shaft coupled with an output yoke and installed passing therethrough, a joint part provided to allow each of the bodies to be coupled with each other and to be rotatable via center pins installed on central parts of upper and lower tip ends of each of the bodies, and a connection yoke fastening each of the input and output yokes thereto via cross-shaped bearings. In the cross-shaped bearings, a length (L) of the connection yoke fastening shafts fastened to the connection yoke is formed to be longer than the length (l) of the input and output connection yoke fastening shafts fastened to the input and output yokes.

IPC Classes  ?

• F16D 3/40 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
• A01B 71/06 - Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine
• B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
• F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
• F16D 3/32 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected in which the coupling is specially adapted to constant velocity-ratio by the provision of two intermediate members each having two relatively- perpendicular trunnions or bearings

Abstract

The present invention relates to a connecting device for an agricultural-machinery work apparatus, the device having: a joint part at which upper and lower center portions of each of a front body, at which an input shaft having an input yoke provided therein is penetratively provided, and a rear body, at which an output shaft having an output yoke provided therein is penetratively provided, are provided to rotate by means of a center pin; and a connecting yoke connectedly provided at each of the input and output yokes by means of a "+" shaped bearing, wherein the length of a connecting yoke fastening shaft fastened to the connecting yoke at the "+" shaped bearing is formed to be longer than the length of an input and output yoke fastening shaft fastened to each of the input and output yokes, and the outer diameter of the front end portion of each of the input and output yokes is formed to be smaller than the inner diameter of an opening of the connecting yoke, such that when the input and output yokes respectively rotate, the yokes easily rotate without friction in a state in which a portion of the front end portion of each of the input and output yokes is accommodated in an inner opening of the connecting yoke and, simultaneously, a rotational angle is increased.

IPC Classes  ?

• A01B 59/042 - Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor
• A01B 71/06 - Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine