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A platform for research: civil engineering, architecture and urbanism
Hydraulic pile hammer oil way, method for prolonging service life of pipeline component of hydraulic pile hammer and hydraulic pile hammer
The invention provides a hydraulic pile hammer oil way. The hydraulic pile hammer oil way comprises a hammer shell, a heavy hammer, a pressure supplementing one-way valve and a pressure supplementing container. The hammer shell and the heavy hammer are slidably connected to form a hydraulic cavity which is connected with an oil inlet valve and an oil return valve. An inlet of the pressure supplementing one-way valve is communicated with an inner cavity of the pressure supplementing container, and an outlet of the pressure supplementing one-way valve is communicated with the hydraulic cavity. When the pressure in the hydraulic cavity is lower than that in the pressure supplementing container, the pressure supplementing one-way valve is opened, oil in the pressure supplementing container is supplemented into the hydraulic cavity through the pressure supplementing one-way valve, a vacuum area in the hydraulic cavity is reduced, the occurrence frequency of the negative pressure in the hydraulic cavity is reduced, and therefore the occurrence frequency of the cavitation phenomenon and the criticality after the cavitation phenomenon occurs are reduced. The hydraulic pile hammer comprises an oil tank, a power pump and the hydraulic pile hammer oil way. The method for prolonging the service life of a pipeline component of the hydraulic pile hammer comprises the step of supplementing the pressure to the hydraulic cavity when the hydraulic pressure in the hydraulic cavity formed by the heavy hammer and the hammer shell is reduced without control. The service life of the pipeline component is prolonged by reducing the occurrence frequency of the cavitation phenomenon and the criticality after the cavitation phenomenon occurs.
一种液压打桩锤油路，包括锤壳、重锤、补压单向阀和补压容器；锤壳与重锤滑动连接形成液压腔，液压腔连接有进油阀、回油阀；补压单向阀的进口与补压容器的内腔连通，补压单向阀的出口与液压腔连通。液压腔内压力低于补压容器内压力时，补压单向阀开启，补压容器内的油液经补压单向阀补入液压腔，缩小液压腔内的真空区域，降低液压腔内负压的出现频率，从而降低气蚀现象的发生频率和发生后的危害度。一种液压打桩锤，包括油箱、动力泵和液压打桩锤油路。一种提升液压打桩锤管道部件寿命的方法，包括在重锤与锤壳形成的液压腔内的液压不受控降低时，向液压腔补压的步骤。通过减轻气蚀现象的发生频率和发生后的危害度，从而提高管道部件寿命。
Hydraulic pile hammer oil way, method for prolonging service life of pipeline component of hydraulic pile hammer and hydraulic pile hammer
The invention provides a hydraulic pile hammer oil way. The hydraulic pile hammer oil way comprises a hammer shell, a heavy hammer, a pressure supplementing one-way valve and a pressure supplementing container. The hammer shell and the heavy hammer are slidably connected to form a hydraulic cavity which is connected with an oil inlet valve and an oil return valve. An inlet of the pressure supplementing one-way valve is communicated with an inner cavity of the pressure supplementing container, and an outlet of the pressure supplementing one-way valve is communicated with the hydraulic cavity. When the pressure in the hydraulic cavity is lower than that in the pressure supplementing container, the pressure supplementing one-way valve is opened, oil in the pressure supplementing container is supplemented into the hydraulic cavity through the pressure supplementing one-way valve, a vacuum area in the hydraulic cavity is reduced, the occurrence frequency of the negative pressure in the hydraulic cavity is reduced, and therefore the occurrence frequency of the cavitation phenomenon and the criticality after the cavitation phenomenon occurs are reduced. The hydraulic pile hammer comprises an oil tank, a power pump and the hydraulic pile hammer oil way. The method for prolonging the service life of a pipeline component of the hydraulic pile hammer comprises the step of supplementing the pressure to the hydraulic cavity when the hydraulic pressure in the hydraulic cavity formed by the heavy hammer and the hammer shell is reduced without control. The service life of the pipeline component is prolonged by reducing the occurrence frequency of the cavitation phenomenon and the criticality after the cavitation phenomenon occurs.
一种液压打桩锤油路，包括锤壳、重锤、补压单向阀和补压容器；锤壳与重锤滑动连接形成液压腔，液压腔连接有进油阀、回油阀；补压单向阀的进口与补压容器的内腔连通，补压单向阀的出口与液压腔连通。液压腔内压力低于补压容器内压力时，补压单向阀开启，补压容器内的油液经补压单向阀补入液压腔，缩小液压腔内的真空区域，降低液压腔内负压的出现频率，从而降低气蚀现象的发生频率和发生后的危害度。一种液压打桩锤，包括油箱、动力泵和液压打桩锤油路。一种提升液压打桩锤管道部件寿命的方法，包括在重锤与锤壳形成的液压腔内的液压不受控降低时，向液压腔补压的步骤。通过减轻气蚀现象的发生频率和发生后的危害度，从而提高管道部件寿命。
Hydraulic pile hammer oil way, method for prolonging service life of pipeline component of hydraulic pile hammer and hydraulic pile hammer
液压打桩锤油路、提升液压打桩锤管道部件寿命的方法、液压打桩锤
CUI LANGLANG (author) / WANG LIN (author) / CAO LIGANG (author) / WANG XINCHANG (author) / ZHANG HONGJUN (author) / MIAO JUNKE (author) / HU GUOHUI (author) / GAO YALI (author) / HUANG ZHAOJUN (author) / YUAN YANJIE (author)
2021-08-03
Patent
Electronic Resource
Chinese