Gear mechanism for a heald shaft drive
AssigneeGroz-Beckert KG
InventorGerhard Pohl
Life of this patent
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Abstract
A gear mechanism for the drive assembly of a heald shaft (1), wherein the gear mechanism (6, 6a, 6b, 6c) comprises an input shaft (7, 7b, 7c) and an output shaft (5, 5b, 5c). The gear mechanism (6, 6a, 6b, 6c) generates a differential angle of rotation between the input shaft (7, 7b, 7c) and the output shaft (5, 5b, 5c) that is superimposed on the angle of rotation and, in dependence on the angle of rotation, is subjected to an oscillating change. This oscillating change can differ from a harmonic oscillation as a result of the non-circular design of the planet gears (11a, 12a, 13a) of the gear mechanism (6, 6b, 6c), thereby making it possible to realize almost any optional movements for the heald shaft (1), with low strain on the gears and the bearings. A simple production method and a compact design are disclosed.
Claims11
A gear mechanism for driving a heald shaft, comprising:
- a hollow gear provided with an inside toothing;
- at least one planet gear provided with an outside toothing, which constantly meshes with the inside toothing of the hollow gear;
- a planet carrier on which the at least one planet gear is positioned such that the at least one planet gear can rotate;
- a sun gear provided with an outside toothing, which constantly meshes with the at least one planet gear;
- a drive assembly having an input shaft that is connected to at least one of the hollow gear, the planet carrier and the sun gear, for providing continuous different rotational speeds;
- and,
- an output shaft having an output end that is connected via a rod assembly with a heald shaft and an input end that is connected via a coupling mechanism to the at least one planet gear, which planet gear transmits a rotational movement from the input shaft of the drive assembly to the output shaft, and thereby superimposes an additional movement on the output shaft.
Dependencies are inferred from the claim text.