SU755240A1 - Cotton-picker spindle drum - Google Patents

Description

The invention relates to agricultural machinery and can be used in cotton harvesting machines.

Known spindle drum containing the drive rollers of the spindles in contact with the tracks of the forward and reverse rotation of the spindles, the first of which is made in the form of a part of the ellipse of the greatest radius of curvature, drove, bearing spindles, and additional rollers in contact with the guide Cam mounted on the frame of the apparatus [XI .

In the famous drum spindles in the zone of removal have variable angular velocity, which impairs the process. removing raw cotton from spindles} in addition, due to the presence of gaps between the rollers and the cam surface, the roller may strike the cam, which reduces the reliability of the drum.

The purpose of this invention is to improve the reliability of work, for which, in the proposed drum, each carrier is a telescopically articulated element interconnected by a spring, with additional rollers mounted coaxially on the spindles, and the track of the reverse rotation of the spindles is made in the form of an arc of a circle.

five . Cotton picking performance

The apparatus is characterized mainly by the activity of the spindles. This requirement can be satisfied with a variable spindle angular velocity.

Yu "theoretical theoretical studies have shown the need to increase the angular velocity of the spindle inlets at the entrance to the working zone, gradually reducing it to the middle of the zone and

15 least increase in output speed. . FIG. 1 depicts the proposed

cotton harvest drum top view? in fig. 2 shows section A-A in FIG. one.

20

The proposed drum contains a belt track 1 of direct rotation (ring wheel), made in the shape of a semi-ellipse in the working area, and

25 track 2 reverse rotation (solar wheel), made in the form. semicircles in the zone of removal, "Guide cam 3, drove 4 with elastic elements in the form of springs 5

30 spindles 6 with drive rollers -7

755240

and with loosely mounted additional rollers 8.

Due to the considerable length of the spindles 6, the guide cam 3 and the carrier 4 with elastic elements 5 mouths are also inflated at the lower supports of the spindles.

When rotating, the carrier 4 spindles 6 with freely set rollers 8 roll in a fixed guide cam, which in the working area 'MM has the shape of a semi-ellipse, and in the area of removal NN has the shape of a semi-circle. When this rollers 7 spindles 6 in the working area of the MM are in the inner; the engagement with the belt track 1 and, leaving the working area ΝΝ by means of the guide cam 3, without impact, enter the removal zone, where _{l will} engage with the track 2 and rotate in the opposite direction. The harvested cotton is removed from the spindles by a puller and transferred to the transport units. The elastic elements 5 create the necessary contacting forces between the roller 8 of the spindle 6 and the guide cam 3.

In the proposed drum, the radius of the carrier changes depending on the configuration of the guide cam radio, which is a function of the angle of rotation of the spindle drum. When the radius of the carrier changes, the spindle speed changes accordingly. *

In this technical solution, the guide cam, which ensures the contact of the spindle with the sun wheel, contributes to the unstressed

the transition of the spindle from the working area to the zone of removal and back. This creates a condition that provides the required law of motion of the spindle center.

The kinematic pair "roller 8 - guide cam" determines the radius of the carrier at each instant. Additional roller 8 reduces friction between the spindle and the guide cam.

Claims (1)

Claim A spindle drum of a cotton harvesting machine containing a drive15 spindle rollers in contact with tracks of forward and reverse rotation of spindles, the first of which is shaped like a part of an ellipse of the greatest radius of curvature that carries 20 spindles, and additional rollers in contact with the guide cam mounted on the frame of the apparatus, characterized in • that, in order to increase reliability in 25 work, each carrier is a telescopically articulated elements connected by a spring, with additional rollers mounted coaxially on the spindles, and the track of the reverse rotation of the spindles is made in the form of an arc of a circle.