Machine element or mechanism – Mechanical movements – Rotary to gyratory
Patent
1982-02-08
1985-07-02
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Rotary to gyratory
366123, B01F 1100, F16H 3300
Patent
active
045260494
ABSTRACT:
The invention provides a vibrator for shaking materials, comprising a drive, a shaft which can be connected to the drive and which is supported on the casing, at least by a bearing, and further comprising an imbalance member supported by the shaft, in the form of an inert mass arranged eccentrically of the shaft.
As a means of improving a vibrator of this type to make it easier to mount, the invention provides that the imbalance member (10) should be arranged loose on the shaft (5). It is desirable for the imbalance member (10) to be provided in contact with the shaft (5) and at least partly enclosing it. If the imbalance member (10) is semi-cylindrical and has bearing boxes (12) at both ends, in accordance with a further embodiment of the invention, the bearing boxes will be light compared to the inert mass of the imbalance member, and their only function will be to surround the shaft and provide a contact surface or contact line. When the vibrator is starting up there is slight friction along this line, whereby the imbalance member is set slightly in rotation. This also enables lighter bearings to be used.
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patent: 2309033 (1943-01-01), Baily
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patent: 2829529 (1958-04-01), Fleming
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patent: 3340742 (1967-09-01), Chandler
patent: 3727890 (1973-04-01), Seidl et al.
patent: 4262549 (1981-04-01), Schwellenbach
patent: 4389120 (1983-06-01), Wadensten
Netter Jean
Staab Lawrence J.
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