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Hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating
The invention discloses a hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating. The hydraulic system comprises a hydraulic gear pump, a stacked pressure reducing valve, a PB valve plate, a two-position four-way reversing valve, a stacked unidirectional throttle valve, a unidirectional throttle valve, a two-position two-way valve, a sweeper brush oil cylinder, a suction nozzle oil cylinder and a hydraulic oil tank, wherein an oil outlet of the pump is respectively connected with a p1 port of the stacked pressure reducing valve and a P port of the two-position four-way valve; a B port of the PB valve plate is connected with a p2 port of the stacked pressure reducing valve; a P port of the PB valve plate is connected with a T port of the two-position four-way valve; an A port of the PB valve plate and an oil discharge port of the stacked pressure reducing valve are connected with an oil return box; an A port of the two-position four-way valve is connected with the stacked unidirectional throttle valve; the other oil port of the stacked unidirectional throttle valve is connected with the unidirectional throttle valve; the other oil port of the unidirectional throttle valve is connected with one port of the two-position two-way valve; the other port of the two-position two-way valve is connected with a rod cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder; a rod-free cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder is connected with the hydraulic oil tank. The hydraulic system enables the sanitation truck sweeper brush/suction nozzle floating effect to be good, and sweeper brush and suction nozzle rolling wheels are prevented from being abraded quickly.
Hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating
The invention discloses a hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating. The hydraulic system comprises a hydraulic gear pump, a stacked pressure reducing valve, a PB valve plate, a two-position four-way reversing valve, a stacked unidirectional throttle valve, a unidirectional throttle valve, a two-position two-way valve, a sweeper brush oil cylinder, a suction nozzle oil cylinder and a hydraulic oil tank, wherein an oil outlet of the pump is respectively connected with a p1 port of the stacked pressure reducing valve and a P port of the two-position four-way valve; a B port of the PB valve plate is connected with a p2 port of the stacked pressure reducing valve; a P port of the PB valve plate is connected with a T port of the two-position four-way valve; an A port of the PB valve plate and an oil discharge port of the stacked pressure reducing valve are connected with an oil return box; an A port of the two-position four-way valve is connected with the stacked unidirectional throttle valve; the other oil port of the stacked unidirectional throttle valve is connected with the unidirectional throttle valve; the other oil port of the unidirectional throttle valve is connected with one port of the two-position two-way valve; the other port of the two-position two-way valve is connected with a rod cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder; a rod-free cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder is connected with the hydraulic oil tank. The hydraulic system enables the sanitation truck sweeper brush/suction nozzle floating effect to be good, and sweeper brush and suction nozzle rolling wheels are prevented from being abraded quickly.
Hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating
YANG JINHUA (author) / LI CHUN (author) / DENG QINKUN (author)
2015-07-15
Patent
Electronic Resource
English
Rectangular scattering roller brush assembly of sanitation sweeper and sanitation sweeper
| European Patent Office | 2024