NL8303420A - Agricultural mower beam - has hydraulic-motor driven grooved roller for movement of reciprocating knives - Google Patents

Abstract

Mower beam knife includes a roller (6) with a programmed grooved track (7,8) producing a pre-determined developed track length. A hydraulic motor (12) controls the movement of the roller in which two cams (4,5), run constantly in the groove to provide a continuous reciprocating cutter knives action. The roller is mounted with spindle (9) on one side in a bearing (10). The opposite end has a spindle (11) driven by the hydro-motor. The roller is completed with a cylindrical protective sleeve (13) closed at one end, and at the opposite end inlets for the hydraulic hoses.

Description

- 1 - * .f fc r

Applicant · H van der Wijk.

Grotesloot 263 1751 I * A Schagerbrug *

Authorized representativeNone

Priority invoked: No

Short designation: Device for drying cutter bars · #

The invention relates to a drying construction, for drying cutter bars

Knives of cutter bars are known as: Middle, or as final, always use a tumbler arm, or tumbler, or an eccentric drive. The object of the invention is to provide a drive assembly which, in addition to other advantages, does not have this drawback.

p tr ^ - -) * - 2 «·. , /

This object is achieved according to the invention and is further elucidated by way of non-limiting example. with reference to the drawing fig. 1. where 1 represents the fixed lower blade # 5 On this fixed lower blade 1 according to the invention two knives, the knives 2 and 3 are mounted #

Perpendicular to these knives 2 and 3 »are at a desired distance according to the invention, the cams if and 5 are arranged · According to the invention, the drive roller 6 is mounted against the knives 2 and 3». at the desired distance from each other, from the center, two grooves 7 and 8 run, which follow a track synchronously to the outside of the roller 6, until the desired deflection of the knives 2 and 3 is obtained, after which the two grooves 7 and 8 will return to the starting point in a smooth motion, thus forming an endless connection according to the invention.

The cams if and 3 of the knives 2 and 3 can be placed in the grooves 7 and 8, which according to the invention will determine the deflection of the knives 2 and 3.

By now supporting the roller 6 with the bearing 10 by means of the shaft 9, on one side, and on the other side driving the shaft 11 by a (in this example) hydraulic motor 12, the cams if and 5 forced out, blades 2 and 3 coming out simultaneously #

After the greatest deflection of the grooves 7 and 8, the cams if and 5 will move towards the center of the roller 6, forced by the grooves 7 and 8 · q ~ Z λ -.-3-it;

As long as the hydraulic motor 12 continues to rotate, this movement will repeat itself endlessly, thereby simultaneously moving the knives 2 and 3 out and in, whereby according to the invention, the undesired shaking movement by canceling the lateral forces, by simultaneously moving the blades 2 and 3 in opposite directions are lifted

The roller 6 with the grooves 7 and. 8 »and the axis 9 and. shaft 11, together with the bearing 10 and the hydromotor 12, according to the invention, will be accommodated in a round cylindrical protective sleeve 13, which is closed at the ringed ends.

With on one side the holder 14 for the bearing 10, and on the other side the holder 13 for the hydromotor 12, 15, on which the openings of the hydromotor 15 have openings 16 and 17 · For example, the hydraulic * hoses, which serve to supply hydraulic motor 12 in this case with oil ·

The slot 18 in which the cams 4 and 5 can move freely during operation is located in the designated and necessary location in the cylindrical protective sleeve 13 », in accordance with the invention, this is necessary for the movement of the cams 4 and 5 *. The holder 13 with contents according to the invention can be mounted on the fixed lower knife 1, the cams 4 and 5 of the knives 2 and 3 being placed through the slot 18 in the grooves 7 and 8, the invention according to the invention. drive has been established · f * "·. ·«,

Claims (5)

1. Driving device for driving cutter bars, characterized in that the shaking effect present in existing drives is undone, and the drive consists of a roller of the desired diameter, in which a groove path is programmed with a stroke of twice half the distance to be traveled from the cutting area * Driving device according to claim 1, which according to the invention drives two knives, which together form a whole knife 3 * Drive device as claimed in claims 1 and 2, consisting of a roll of the desired diameter, with programmed therein the grooves that determine the stroke of the two knives, driven by a hydraulic motor, or some other drive Drive device according to claim 1, 2, and 3, characterized in that it is housed in a cylindrical protective sleeve, which is closed on both sides, and has a slot along its length, so that the pins 20 of the blades can take place, in the grooves "of the drive roller · Drive device according to the preceding claims, according to the invention of which, by a single drive-driven driving roller, the forces generated by the driving roller, which synchronously oppose each other, out of the center, cancel each other · a τ p * oo · & y -J £ γ _ w