SU1258355A1 - Spindle for cotton picker - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery and can be used in cotton harvesting machines.

The purpose of the invention is to increase the activity of the spindle during cotton picking.

FIG. 1 shows the proposed spindle; in fig. 2 — node 1 in FIG. one; in fig. 3 - node II in FIG. one.

The spindle contains the rod 1 and the twisted tape 2 which is loosely worn on it, the teeth of which are notched on the lower and upper edges, alternating, with height. The toothed tape 2 is wound so that the gap between the tops of the high teeth on the lower and upper edges of the turns of the tape is zero when the tops of these high teeth coincide. Such a coincidence of the tops of the high teeth in the wound tape is repeated several times with a periodicity, depending on the ratio between the notch of the teeth and the length of one turn of the tape, and ensures the discontinuity of the helical interturn clearance of the twisted tape. At its remaining points, where the tops of the high teeth of two adjacent turns do not coincide, a non-positive (direction changing) gap is formed, so that any screw of the line, built from the top of an arbitrarily selected tooth, will either intersect with one or more teeth, or pass through the tops high teeth

During the operation of the spindle in the work area, the cotton slices are compressed by the spindles so that a portion of the cotton slice is pressed into the gap between the turns and penetrates into the subdental space. The tooth sticks into the cotton wedge and grip it. Then, as vrash, the spindle segment is pulled and wound onto the spindle. Part of the wedge of lobule is oriented along the helix, with which the tops of the high teeth on the upper and lower edges of the tape coincide, but cannot enter the subdental space.

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as the teeth of the tape form a discontinuous non-smooth gap. It should be noted that in the cotton bushes of the screw cotton the tape is twisted relative to the rod 1 and the gap between the teeth on the upper and lower edges of the tape tends to become smaller. Thus, the cotton fibers trapped by the teeth are wound onto the outer surface of the helical tape. Foreign objects, plant parts and view, ihs

The weeds, unable to get into the interturn gap, do not break off and remain on the bushes, and raw cotton is removed from the bolls and transported to the removal zone.

In the pick-up area, the spindle reverses the direction of the blade and the cotton slices are unwound and removed from the spindle under the action of inertial forces and pullers. Screw serrated tape under the action of these forces unwinds relative to

0 rod and elongated; inter-turn gap width increases. This helps to improve the removal of cotton stakes from the spindle teeth and their self-cleaning.

Thus, the proposed design excludes the entry of cotton fibers.

5 and elongated parts of plants in the subdental space, i.e. eliminates the formation of windings on the rod; the injury of the cotton bushes and the clogging of raw cotton are significantly reduced. Reducing the greening of the working surface

  the spindle ensures long-term preservation of the maximum completeness of cotton picking by the apparatus, i.e. provides increased stability of the process of harvesting raw cotton. The choice of the ratio of the heights of the larger and smaller teeth is determined by the fact that large teeth have an optimal height of 3 mm, and the maximum value of small teeth cannot be more than 2 mm, since the gap between the tops of the opposite teeth cannot be less than 1 mm.

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FIG.

Compiled by M. Voronin

Editor S. PatrushevTehred I. Veree, Proofreader L. Patay

Order 5049/1 Circulation 679 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, .VVocKBa, Ж-35, Raushsk nab., 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

1. CINDLE-CLEANING MACHINE SPINDLE, comprising a core and a spiral-wound ribbon with teeth on its edges, characterized in that, in order to increase activity when picking cotton, the teeth of each ribbon edge are made different in height and arranged in alternating order. 2. Spindle in π. 1, characterized in that the ratio of the heights of adjacent teeth is 1.5-2.5. (L Xia QO SB SP Joint venture FIG. 1