A hydraulic control system for sequence control of hydraulic piling hammer
A hydraulic control system and hydraulic piling hammer technology, which is applied in the field of hydraulic piling, can solve the problems of large fluctuations in reversing pressure, large sloshing of oil pipelines, and low impact efficiency of diesel hammers, and achieve stable hydraulic control systems, small fluctuations in reversing pressure, Switch to arbitrary and controllable effects
Active Publication Date: 2018-03-02
GUANGDONG LIYUAN HYDRAULIC MACHINERY
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Problems solved by technology
Most of the existing piling hammers are diesel hammers. Diesel hammers have low striking efficiency, large pollution and low energy efficiency. At the same time, some existing hydraulic piling hammers have low control efficiency, large fluctuations in reversing pressure, large sloshing of oil pipelines, and cannot guarantee the piling requirements. Energy and repeatability of strikes
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[0019] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.
[0020] A hydraulic control system for sequential control of a hydraulic piling hammer, including a piling hammer, a differential hydraulic cylinder, a pressure oil device, an oil return tank, a first check valve, a first cartridge valve, a second cartridge valve, and a third cartridge Valve, sequence valve, solenoid valve, second one-way valve; the piston rod of the piling hammer passes through the differential hydraulic cylinder, the piston rod is provided with a hydraulic piston, and the hydraulic piston and the differential hydraulic cylinder form an upper hydraulic chamber and a lower hydraulic chamber, The piling hammer includes a piston rod, a hydraulic piston and a hammer core, and the hammer core is set at the lower end of the piston rod; the sequence valve is provided with a first oil port and a second oil port, and the solenoid val...
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The invention relates to a hydraulic control system for sequential control of hydraulic pile hammers. A pressure oil device is respectively communicated with a lower hydraulic cavity, a lower accommodating cavity and a control cavity of a first cartridge valve, a lower accommodating cavity and a control cavity of a second cartridge valve, a first oil port of a sequence valve and a pressure oil port of an electromagnetic valve through first one-way valves; an upper hydraulic cavity is respectively communicated with an upper accommodating cavity of the first cartridge cavity, an upper accommodating cavity of the second cartridge valve and a lower accommodating cavity of the third cartridge valve; a lower hydraulic cavity is respectively communicated with the lower accommodating cavity of the first cartridge cavity, the lower accommodating cavity of the second cartridge cavity and the first oil port of the sequence valve; the upper accommodating cavity of the first cartridge valve is communicated with the upper accommodating cavity of the second cartridge valve; the upper accommodating cavity of the second cartridge valve is communicated with the lower accommodating cavity of the third cartridge valve; and control ports of the electromagnetic valve are respectively communicated with a control cavity of the sequence valve and a control cavity of the third cartridge valve. The hydraulic control system is high in control efficiency, can control the piling energy and frequency, and belongs to the technical field of hydraulic piling.
Description
technical field [0001] The invention relates to the technical field of hydraulic piling, in particular to a hydraulic control system for sequence control of hydraulic piling hammers. Background technique [0002] The hydraulic control system of hydraulic piling hammer sequence control is the core link to realize the piling work cycle and determine the working performance of the piling hammer. Most of the existing piling hammers are diesel hammers. Diesel hammers have low striking efficiency, large pollution and low energy efficiency. At the same time, some existing hydraulic piling hammers have low control efficiency, large fluctuations in reversing pressure, large sloshing of oil pipelines, and cannot guarantee the piling requirements. Power and repeatability of strikes. Contents of the invention [0003] In view of the technical problems in the prior art, the object of the present invention is to provide a hydraulic control system for sequential control of hydraulic pil...
Claims
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IPC IPC(8): F15B1/02F15B11/08F15B13/044E02D7/10
CPCE02D7/10F15B1/021F15B11/08F15B21/008F15B2013/004F15B2013/0448F15B2211/3157
Inventor 莫朝卿魏智健周天辉
Owner GUANGDONG LIYUAN HYDRAULIC MACHINERY