Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Suction nozzle balance device for special sanitation truck
The invention provides a suction nozzle balance device for a special sanitation truck. The suction nozzle balance device comprises a hydraulic system. An oil outlet of a hydraulic oil pump is connected with an oil inlet P of a three-position four-way valve and an oil inlet P1 of a two-position two-way valve through pipes in parallel. An opening A and an opening B of the three-position four-way valve are connected with a rodless cavity and a rod cavity of a suction nozzle lifting oil cylinder through pipes respectively. The meso-position function of the three-position four-way valve is that A and T are through, and P and B are not through. An oil outlet A1 of the two-position two-way valve is connected with an oil inlet P2 of a pressure reduction valve through a pipe. An oil outlet A2 of the pressure reduction valve is connected between the opening B of the three-position four-way valve and the rod cavity of the suction nozzle lifting oil cylinder through pipes. An oil drainage opening T2 of the pressure reduction valve is connected an opening T of the three-position four-way valve and an opening T of a valve for controlling other actions in parallel. The suction nozzle balance device has the beneficial effects that stepless adjusting is conducted on the grounding pressure of a suction nozzle when the special sanitation truck works, wear is reduced, and the service life is prolonged.
Suction nozzle balance device for special sanitation truck
The invention provides a suction nozzle balance device for a special sanitation truck. The suction nozzle balance device comprises a hydraulic system. An oil outlet of a hydraulic oil pump is connected with an oil inlet P of a three-position four-way valve and an oil inlet P1 of a two-position two-way valve through pipes in parallel. An opening A and an opening B of the three-position four-way valve are connected with a rodless cavity and a rod cavity of a suction nozzle lifting oil cylinder through pipes respectively. The meso-position function of the three-position four-way valve is that A and T are through, and P and B are not through. An oil outlet A1 of the two-position two-way valve is connected with an oil inlet P2 of a pressure reduction valve through a pipe. An oil outlet A2 of the pressure reduction valve is connected between the opening B of the three-position four-way valve and the rod cavity of the suction nozzle lifting oil cylinder through pipes. An oil drainage opening T2 of the pressure reduction valve is connected an opening T of the three-position four-way valve and an opening T of a valve for controlling other actions in parallel. The suction nozzle balance device has the beneficial effects that stepless adjusting is conducted on the grounding pressure of a suction nozzle when the special sanitation truck works, wear is reduced, and the service life is prolonged.
Suction nozzle balance device for special sanitation truck
HU XINLING (Autor:in) / LI TIANZENG (Autor:in)
16.12.2015
Patent
Elektronische Ressource
Englisch
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