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Couplings for connecting lawnmower knife drives to reciprocating lawn mowers

A connecting device and connected technology, applied in the direction of cutters, harvesters, agricultural machinery and implements, etc., can solve problems such as wear and tear

Active Publication Date: 2019-06-14
EWM艾谢尔哈特模具技术和工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, it has been shown that due to positional or manufacturing tolerances or deformations during operation, when using a lawnmower knife drive according to DE 39 31 736 C2 or DE 10 2005 048 766 A1, even with a lawnmower knife Direct linear drive of the lawnmower knife drive, causing increased wear due to one or more incorrect or inclined positions of the axis of movement of the drive journal of the lawnmower knife drive relative to the axis of the lawnmower knife

Method used

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  • Couplings for connecting lawnmower knife drives to reciprocating lawn mowers
  • Couplings for connecting lawnmower knife drives to reciprocating lawn mowers
  • Couplings for connecting lawnmower knife drives to reciprocating lawn mowers

Examples

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Embodiment Construction

[0026] figure 1 A connection device 1 with a drive element 2 and an output element 3 connected to each other via a compensating device 4 is shown in perspective. The drive element 2 is formed as a drive adapter, which can be connected to a drive journal of a gearbox, as described, for example, in DE 3931 736 C2 and DE 10 2005 048 766 A1. Such as figure 1 As shown in , the output element 3 is connected to a lawnmower knife 7, wherein the lawnmower knife 7 includes a blade back 8 on which a blade 9 is mounted.

[0027] Via the above-specified gearbox, the drive element 2 is driven along an axis X, also referred to as the cutter axis, wherein the drive element 2 moves reciprocally.

[0028] Angular deviations between the direction of movement of the drive journal of the gearbox and the knife axis X may arise due to manufacturing and assembly tolerances as well as deformations of the individual components during operation. This means that the cutter axis X and the direction of ...

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PUM

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Abstract

A connecting arrangement (1) for connecting a mower knife drive to a mower knife (7), that moves back and forth along a knife or X-axis, has a driving element (2) and an output element (3). The driving element (2) connects the connecting arrangement (1) to the mower knife drive. The output element (3) connects the connecting arrangement (1) to the mower knife (7). The driving element (2) and the output element (3) rotate relative to one another about three mutually perpendicular axes of rotation (X, Y, Z). Also, the driving element (2) and output element (3) can be moved relative to one another along at least two of the axes of rotation (Y, Z).

Description

technical field [0001] The invention relates to a coupling device for connecting a lawnmower knife drive to a lawnmower knife reciprocatingly movable along the knife axis, in particular for agricultural machinery such as a combine harvester and field chopping harvesters. The linkage has a drive element that couples the linkage to the lawnmower blade drive. Furthermore, the connection device has an output element that couples the connection device to the lawn mower blade, so that the lawn mower blade drive is drive-wise connected to the lawn mower blade via the connection device. Background technique [0002] DE 40 35 528 C2 describes a coupling between a lawnmower knife drive and a lawnmower knife, which reciprocates linearly in a double-knife cutter unit of a front lawnmower. [0003] The introduction of the lifting movement takes place by means of a pivotally movable drive rod and a drive pin connected thereto representing a connection element, and through a further conn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/32A01D69/12
CPCA01D34/32A01D69/12A01D34/33
Inventor H·G·舒马赫A·罗斯
Owner EWM艾谢尔哈特模具技术和工程有限公司