Braking device for a rotor shaft of a rotor spinning machine

Details Braking device for a rotor shaft of a rotor spinning machine Braking device for a rotor shaft of a rotor spinning machine

1987-09-04

1988-08-16

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Stopping or starting

57406, D01H 1243

Patent

active

047634650

ABSTRACT:
A braking device for a rotor shaft of a rotor spinning machine of the type having spaced pairs of rotating bearing support discs. A brake shoe is pivoted for movement upwardly between the bearing support discs and a pair of holddown elements are pivoted for movement downwardly from above the bearing support discs against the rotor shaft to hold the rotor shaft in the nip of the bearing support discs while the brake shoe is acting to brake the rotor shaft, with the holddown elements applying a cleaning action on the rotor shaft. The manipulating mechanism for the holddown elements and brake shoe are such as to apply a greater force downwardly through the holddown elements than is applied upwardly by the brake shoe so that the rotor shaft will remain in the nip of the bearing support discs during the application of braking by the brake shoe. Further, the coefficient of friction between the brake shoe and the rotor shaft is greater than the coefficient of friction between the holddown elements and the rotor shaft to avoid undue friction on the rotor shaft at the location of the bearing support discs.

REFERENCES:
patent: 3868815 (1975-03-01), Stahlecker
patent: 4402177 (1983-09-01), Grimm et al.
patent: 4574577 (1986-03-01), Derichs et al.

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