Surface maintenance machine drive and brush

Details Surface maintenance machine drive and brush Surface maintenance machine drive and brush

1977-10-03

1979-02-13

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15340, E01H 104

Patent

active

041387562

ABSTRACT:
A mobile sweeping machine having separate hydraulic motors for driving a main brush, a propulsion wheel, and a curb brush and a suction blower; a constant speed power source that through a mechanical drive connection drive two variable speed displacement pumps and a fixed displacement pump; one of the variable displacement pumps being fluidly connected to the propulsion wheel motor; the other variable displacement pump being fluidly connected to the main brush motor; and the fixed displacement pump being fluidly connected to a valve for operating the cylinder for varying the downward pressure on the main brush, and to a valve for selectively applying fluid to the cylinder for operating the sweeper hopper, and supplying fluid to drive the curb brush and suction blower motors. A manual control is provided for operating the main brush hydraulic motor to discontinue the rotation of the main brush, to drive the main brush at a low brush speed, and to drive the main brush at a high brush speed. Brush tuft mounting annular flanges are tack welded to a brush tube at spaced locations around the inner peripheries of the flanges which are axially spaced from one another on the brush tube.

REFERENCES:
patent: 3084367 (1963-04-01), Radinse
patent: 3165775 (1965-01-01), Lutz
patent: 3222706 (1965-12-01), Kaar et al.
patent: 3691579 (1972-09-01), Kasper

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