Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic cooling system of crushing excavator and excavator
The invention discloses a crushing excavator hydraulic cooling system and an excavator, and belongs to the technical field of engineering machinery, the crushing excavator hydraulic cooling system comprises a crushing device and an excavating device, the excavating device is connected with a main valve through an excavating oil return passage, and the main valve is connected with a hydraulic oil tank through a main oil return passage and a bypass oil return passage; the crushing device is connected with a crushing oil return passage; the crushing oil return passage is connected with the main oil return passage; the second crushing oil return passage is connected with the crushing oil return passage and the bypass oil return passage; and the second crushing oil return passage is provided with a third back pressure valve. The crushing oil return passage is not connected with the main valve any more, hydraulic oil cannot directly return to the hydraulic oil tank from the second back pressure valve, but enters the radiator, and the heat dissipating capacity can be increased; a second crushing oil return passage and a third back pressure valve are arranged, the opening pressure of the second crushing oil return passage is increased, hydraulic oil in the crushing oil return passage flows through the radiator without back pressure to be radiated and returns to the hydraulic oil tank, and the situation that the radiator is damaged due to the fact that the pressure of the crushing oil return passage is too high under extreme conditions is avoided.
本发明公开了一种破碎挖掘机液压散热系统及挖掘机，属于工程机械技术领域，包括破碎装置和挖掘装置，挖掘装置通过挖掘回油通路连接主阀，主阀通过主回油通路和旁通回油通路连接液压油箱；破碎装置连接破碎回油通路；破碎回油通路连接主回油通路；还包括连接破碎回油通路与旁通回油通路的第二破碎回油通路；第二破碎回油通路设置第三背压阀。通过使破碎回油通路不再连接主阀，液压油不能直接从第二背压阀回到液压油箱，而是进入散热器，可以增加其散热量；设置第二破碎回油通路及第三背压阀，增大第二破碎回油通路开启压力，既实现破碎回油通路液压油无背压流经散热器散热返回液压油箱，又避免极端情况下破碎回油通路的压力过高导致散热器损坏。
Hydraulic cooling system of crushing excavator and excavator
The invention discloses a crushing excavator hydraulic cooling system and an excavator, and belongs to the technical field of engineering machinery, the crushing excavator hydraulic cooling system comprises a crushing device and an excavating device, the excavating device is connected with a main valve through an excavating oil return passage, and the main valve is connected with a hydraulic oil tank through a main oil return passage and a bypass oil return passage; the crushing device is connected with a crushing oil return passage; the crushing oil return passage is connected with the main oil return passage; the second crushing oil return passage is connected with the crushing oil return passage and the bypass oil return passage; and the second crushing oil return passage is provided with a third back pressure valve. The crushing oil return passage is not connected with the main valve any more, hydraulic oil cannot directly return to the hydraulic oil tank from the second back pressure valve, but enters the radiator, and the heat dissipating capacity can be increased; a second crushing oil return passage and a third back pressure valve are arranged, the opening pressure of the second crushing oil return passage is increased, hydraulic oil in the crushing oil return passage flows through the radiator without back pressure to be radiated and returns to the hydraulic oil tank, and the situation that the radiator is damaged due to the fact that the pressure of the crushing oil return passage is too high under extreme conditions is avoided.
本发明公开了一种破碎挖掘机液压散热系统及挖掘机，属于工程机械技术领域，包括破碎装置和挖掘装置，挖掘装置通过挖掘回油通路连接主阀，主阀通过主回油通路和旁通回油通路连接液压油箱；破碎装置连接破碎回油通路；破碎回油通路连接主回油通路；还包括连接破碎回油通路与旁通回油通路的第二破碎回油通路；第二破碎回油通路设置第三背压阀。通过使破碎回油通路不再连接主阀，液压油不能直接从第二背压阀回到液压油箱，而是进入散热器，可以增加其散热量；设置第二破碎回油通路及第三背压阀，增大第二破碎回油通路开启压力，既实现破碎回油通路液压油无背压流经散热器散热返回液压油箱，又避免极端情况下破碎回油通路的压力过高导致散热器损坏。
Hydraulic cooling system of crushing excavator and excavator
一种破碎挖掘机液压散热系统及挖掘机
ZHUANG QIANXU (Autor:in) / CHEN LIANFENG (Autor:in) / CHEN KAI (Autor:in) / WANG ZHENGHANG (Autor:in)
14.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING