SU446251A1 - Cotton Spindle - Google Patents

Description

The invention relates to agricultural machinery and can be used in the design of machines for cleaning cotton. Known spindle containing the drive roller, the rod rigidly connected with the roller, and a toothed tape, wound with a spiral on the rod, the upper end of which is fixed at the roller. It is subject to cotton fiber windings and has a large moment of inertia. This reduces its activity, requires a significant amount of time for cleaning. (Which reduces the performance of the machine), as well as energy to drive the working bodies. The aim of the invention is to prevent the spindle from winding with fiber and reducing the energy intensity of the spindle drive. This is achieved by the fact that the lower end of the stereo spindle is fixed in the disk of the spindle drum, and its upper end of the spindle is freely mated with the drive shaft, for example, through a sliding bearing. By virtue of the diametral deformation of the toothed belt when the spindles reverse, the cotton fiber rings formed during the windings are broken and the winding self-destructs. The drawing schematically shows the proposed spindle, a cross-section. In the upper disk I of the spindle drum, a shank 2 spindle drive rollers are installed in the bearing. On the shank, the sleeve 3 is fixedly attached to which, in turn, is attached with a spiral tape f. The lower part of the shank is installed in the sleeves 5 and 6, located in the slot of the rod 7 of the spindle. The lower part of the spindle rod is provided with an elastic rubber sleeve 8, by means of which the rod is installed in the slot of the lower disk 5 of the spindle drum without the possibility of rotational avi gens.

During operation, the spindle changes its direction of rotation twice during one revolution of the drum. The toothed tape 4, the upper part of which is rigidly attached to the roller, and the lower part free, is twisted under the action of inertial forces. The torsion of the helix is accompanied by a change in its diameter, which leads to the breaking of the skein of cotton fibers.

The magnitude of the inertial force that twists the spiral tape depends on the spindle acceleration, which, in terms of the friction drive, in turn, is determined by the field of the spindle inertia. The smaller the moment of inertia, the greater the acceleration.

In the proposed spindle, the rod is stationary (only the tape rotates with the roller), in contrast to the well-known spindle, where the massive one, the rod takes part in the rotational motion. Therefore, in the proposed spindle, the moment of inertia is sharply reduced compared with the known spindle, the acceleration increases and the effect of breaking of the cotton fiber skein appears, which

Provides a positive effect. At the same time, the wear of the drive elements and the energy consumption of the drive of the working body are reduced.

The spindle rod is installed in the lower disk of the spindle drum in an elastic stool to allow the spindle axis to be angularly deflected to compensate for the displacement of the axes in the upper and lower drum. The rod can be in cross section both round and faceted, for example square.

SUBJECT OF INVENTION

Cotton harvesting spindle, mainly drum type, containing a drive roller, a rod, a tape-covering tape, fixed with a roller upper end, characterized in that, to prevent the spindle from spinning fiber and reducing the spindle drive energy intensity, the spindle rod with its lower end is fixed in the disk the spindle drum, and the upper drum loosely coupled with the spindle drive roller, for example, through a sliding bearing.