Cotton picker unit drive with controllable spindle speed to drum speed ratio and belt drive

A technology of driving device and spindle picking drum, which is applied in harvesting machines, agricultural machinery and implements, agriculture, etc., and can solve problems such as noisy and expensive systems

Active Publication Date: 2012-07-04
DEERE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While separate drive and transmission systems help overcome speed ratio issues, these systems can be expensive
Additionally, drive systems often include multiple gear drives, which can be noisy and require a constant supply of lubricating oil

Method used

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  • Cotton picker unit drive with controllable spindle speed to drum speed ratio and belt drive
  • Cotton picker unit drive with controllable spindle speed to drum speed ratio and belt drive
  • Cotton picker unit drive with controllable spindle speed to drum speed ratio and belt drive

Examples

Experimental program
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Embodiment Construction

[0011] refer to figure 1 , which shows a cotton harvester row unit 10 having a row unit housing 12 and a crop lifter 14 supported for forward movement F on the ground for receiving a row of cotton plants located in a cotton row receiving area 16 . Picking and doffering structure 18 supported in housing 12 is powered by drive structure 20 . Spinning Spindle 22 ( image 3 ) removes cotton from the cotton plants entering the cotton row receiving area 16. The removed cotton is unwound from the spindles 22 by the doffer 23 and is transported back into the gate structure 24 towards a cotton receiving device (not shown). Except for the drive structure 20 described in detail below, the row unit 10 may be of a conventional structure, such as the type shown and described in the aforementioned US Patent No. 5,325,656. Other row cell configurations may also be used, and the present configuration is given as an example only to help describe the drive structure 20 embodiment.

[0012] S...

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PUM

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Abstract

A cotton harvester row unit includes belt drive and a variable transmission to reduce noise and optimize spindle and doffer speeds of rotation while permitting spindle drum structure rotational speed to change with changes in harvester speed. In one embodiment, a variable speed motor drives the ring gear of a planetary gear set to vary the ratio of spindle and doffer speed to drum speed. The planetary gear set may be enclosed to also help reduce noise and to decrease grease consumption. Nearly constant spindle and doffer speeds may be maintained over a wide range drum rotational speeds, and the upper speeds may be limited to avoid operation above critical speeds of components. The transmission may be configured to reduce or completely eliminates gear meshing off of the drum centerline to thereby reduce row unit manufacture precision, and a relatively low power motor may be used to adjust the ratio of spindle and doffer speed to drum speed.

Description

technical field [0001] The present invention relates generally to spindle cotton harvesters and, more particularly, to row unit drives for such harvesters. Background technique [0002] Automatic cotton harvester with spindle picking unit, including drive to synchronize drum speed with ground speed. In the past, spindle speed and doffer speed were a direct ratio of drum speed. To increase productivity, the ground speed and thus the drum speed have been increased. However, the maximum spindle speed and doffer speed generally remain the same. As a result, the ratio of doffer speed and spindle speed to drum speed also has to be reduced in order not to exceed said maximum speed when the harvester is running at high ground speed. As a result, the spindles make fewer revolutions to engage the cotton row at any given speed, and the doffers turn more slowly. Spindle speed and the ratio of doffer speed to drum speed have a negative impact on picking efficiency and conveying capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D46/16
CPCA01D46/16
Inventor 约耳·M·施赖纳凯文·J·戈林
Owner DEERE & CO
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