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Shaft alignment and anti-corrosion liner for a disk gang

A disc bearing and disc technology, which is applied to shafts and bearings, rotating bearings, bearings, etc., can solve problems such as difficulty, bearing rust maintenance, and time-consuming

Inactive Publication Date: 2011-09-21
DEERE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some disc pack configurations include square shafts that have steel bushings to provide a proper fit between the inner ring and the shaft, but the bushings can rust the bearings and make repairs time consuming and difficult

Method used

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  • Shaft alignment and anti-corrosion liner for a disk gang
  • Shaft alignment and anti-corrosion liner for a disk gang
  • Shaft alignment and anti-corrosion liner for a disk gang

Examples

Experimental program
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Effect test

Embodiment Construction

[0008] Refer to attached figure 1 , shows a portion of an agricultural disc 8 with a disc pack arrangement 10 . Said disc 8 comprises a disc frame 12 adapted to move over the ground in a forward advancing direction F until the ground breaks up clods and adds plant residues to the soil. The frame 12 extends generally transversely to the forward direction F and supports a plurality of spaced C-spring pack mounting bases 16 made of spring steel. The base 16 includes an upper end connected to the frame 12 by a mounting bracket 18 .

[0009] A disc pack bearing arrangement 20 having a bearing inner ring 20 a is connected by bolts 22 to a lower horizontally extending leg 26 of each base 16 . A disc pack bolt or shaft 30 having an axis 30a extends through the inner race 20a of the bearing assembly 20 and supports a plurality of transversely spaced disc blades 32, 32a and 32b having a central circular hole 32C which accommodates the Shaft 30 passes through. Spacer members 34, 36, ...

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PUM

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Abstract

A disk gang assembly (10) includes a disk gang shaft (30) supported by a standard-mounted disk gang bearing assembly (20) having an inner race (20a) receiving a mounting portion (30m) of the disk gang shaft (30). A non-metallic anti-corrosive shaft liner (50) supported over the mounting portion (30m) between the inner race (20a) and the mounting portion (30m) protects the mounting portion from impacts and from seizure of the inner race (20a) and provides a tight fit between the shaft mounting portion (30m) and the inner race (20a) without need for close manufacturing tolerances. The shaft liner (50) aligns the bearing, spacers and washers relative to the shaft (30) and accommodates slight misalignments of the shaft (30), bearing inner race (20a) and any spacing components (34,36,37,38) between disk blades (32,32a,32b). A split (52) generally along an axis parallel to an axis of the disk gang (30a) shaft facilitates assembly of the liner (50) unto the shaft (30).

Description

technical field [0001] The present invention relates generally to disc tools, and more particularly to a liner for improving corrosion resistance and providing improved bearing alignment with the disc mounting shaft. Background technique [0002] A disc pack typically includes an arbor bolt or shaft supported by standard mounted bearings located between spaced discs along the length of the shaft. The shaft is generally round and has an outer diameter slightly smaller than the inner diameter of the support bearing. The gap between the shaft and the bearing required to maintain concentricity can lead to corrosion. This corrosion leads to seizure of the bearings on the shaft, and such seizure makes repair of the disk pack very difficult when bearing replacement becomes necessary. At the same time, seizure of the bearings requires sawing or incineration of the bearings for removal. Additionally, because the bearing inner diameter must be specifically designed to fit the shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B9/00F16C27/06
CPCA01B71/04A01B21/08
Inventor 理查德·约瑟夫·康奈尔马克·唐纳德·贝克安东尼·斯科特·罗耶赖安·安东尼·哈克德
Owner DEERE & CO
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