Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic breaking hammer and engineering machinery
The invention relates to a breaking hammer, and discloses a hydraulic breaking hammer and engineering machinery, the hydraulic breaking hammer comprises a hammer body, a direction control valve, a pilot proportional pressure control valve, an oil inlet and an oil return port, the hammer body is internally provided with a middle cylinder body cavity used for installing a piston rod; the middle cylinder body cavity comprises an upper cavity and a lower cavity which are sequentially arranged from top to bottom, the upper cavity is connected with the oil inlet through the direction control valve, the lower cavity is connected with the oil inlet, the pilot proportional pressure control valve is installed on an oil way between the direction control valve and the oil return port, and the pilot proportional pressure control valve is connected with the oil return port. And the oil return pressure of the upper cavity can be controlled. According to the hydraulic breaking hammer, the striking frequency of the breaking hammer can be automatically adjusted, the breaking efficiency is improved, and energy consumption is reduced.
本发明涉及破碎锤，公开了一种液压破碎锤及工程机械，该液压破碎锤包括锤体、方向控制阀、先导比例压力控制阀、进油口和回油口，所述锤体内设置有用于安装活塞杆的中缸体腔，所述中缸体腔包括由上至下依次设置的上部腔体和下部腔体，所述上部腔体通过所述方向控制阀与所述进油口连接，所述下部腔体与所述进油口连接，所述先导比例压力控制阀安装在所述方向控制阀与所述回油口之间的油路上，以能够控制所述上部腔体的回油压力。本发明的液压破碎锤能够自动调节破碎锤的打击频率，提升破碎效率，节约能耗。
Hydraulic breaking hammer and engineering machinery
The invention relates to a breaking hammer, and discloses a hydraulic breaking hammer and engineering machinery, the hydraulic breaking hammer comprises a hammer body, a direction control valve, a pilot proportional pressure control valve, an oil inlet and an oil return port, the hammer body is internally provided with a middle cylinder body cavity used for installing a piston rod; the middle cylinder body cavity comprises an upper cavity and a lower cavity which are sequentially arranged from top to bottom, the upper cavity is connected with the oil inlet through the direction control valve, the lower cavity is connected with the oil inlet, the pilot proportional pressure control valve is installed on an oil way between the direction control valve and the oil return port, and the pilot proportional pressure control valve is connected with the oil return port. And the oil return pressure of the upper cavity can be controlled. According to the hydraulic breaking hammer, the striking frequency of the breaking hammer can be automatically adjusted, the breaking efficiency is improved, and energy consumption is reduced.
本发明涉及破碎锤，公开了一种液压破碎锤及工程机械，该液压破碎锤包括锤体、方向控制阀、先导比例压力控制阀、进油口和回油口，所述锤体内设置有用于安装活塞杆的中缸体腔，所述中缸体腔包括由上至下依次设置的上部腔体和下部腔体，所述上部腔体通过所述方向控制阀与所述进油口连接，所述下部腔体与所述进油口连接，所述先导比例压力控制阀安装在所述方向控制阀与所述回油口之间的油路上，以能够控制所述上部腔体的回油压力。本发明的液压破碎锤能够自动调节破碎锤的打击频率，提升破碎效率，节约能耗。
Hydraulic breaking hammer and engineering machinery
液压破碎锤及工程机械
LIU XIANGBAO (Autor:in) / WU YUANFENG (Autor:in) / YUAN YE (Autor:in) / HE DONGBO (Autor:in) / ZHOU WENTAO (Autor:in)
12.08.2022
Patent
Elektronische Ressource
Chinesisch
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