Hydraulic system used for controlling energy conservation pump and control method
A hydraulic system and energy-saving pump technology, which is applied in the control of energy-saving pumps, hydraulic systems and control fields, can solve the problems of increased oil leakage, increased machine tool costs, stuck valves, etc., to reduce oil temperature rise, improve production efficiency, reduce noise effect
Inactive Publication Date: 2018-07-06
TIANSHUI METALFORMING MACHINE TOOL GROUP
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Problems solved by technology
[0003] After the existing machine tool is started, an ordinary motor is used to control the oil pump. After the machine tool is started, the oil pump overflows through the proportional relief valve. When the machine tool is in the working state, the proportional relief valve is used to control the pressure. The reversing valve returns to the oil tank, and the oil passes through the proportional relief valve and the proportional reversing valve to convert the mechanical energy into heat energy, resulting in an increase in the oil temperature of the oil tank, increasing the oil leakage and polluting the environment, and the noise of the oil pump motor is also relatively large
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as figure 1 As shown, a hydraulic system for controlling an energy-saving pump includes a servo motor 3, a bidirectional pump 4, a main pressure valve 6, a reversing valve 11, a filling valve 16 and an oil cylinder 17, and the servo motor 3 drives the bidirectional pump 4 to act. One end of the bidirectional pump 4 is connected to the oil suction check valve 1, and the other end is respectively connected to one end of the oil suction check valve 2, the accumulator 5, the liquid filling check valve 7, the first check valve 8 and the second check valve 9, The filling check valve 7 communicates with the filling valve control valve 12, and the outlet of the filling valve control valve 12 communicates with one end of the filling valve 16; the first check valve 8 is respectively connected with one end of the back pressure valve 13, one ...
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The invention belongs to the technical field of equipment in the forge and press industry, and particularly relates to a hydraulic system used for controlling an energy conservation pump. The hydraulic system comprises a servo motor, a dual-way pump, a main pressure valve, a reversing valve, a prefill valve and an oil cylinder, the servo motor drives the dual-way pump to move, one end of the dual-way pump is connected with an oil sucking one-way valve, the other end of the dual-way pump is connected with one end of the oil sucking one-way valve, one end of an energy accumulator, one end of a prefill one-way valve, one end of a first one-way valve and one end of a second one-way valve, the prefill one-way valve communicates with a prefill valve control valve, and an outlet of the prefill valve control valve communicates with one end of the prefill valve; and the first one-way valve communicates with one end of a counterbalance valve, one end of a poppet valve and the other end of the second one-way valve. According to the hydraulic system for controlling the energy conservation pump, pollution of oil to the environment is reduced, cost is greatly saved, rising of oil temperature isreduced, noise is reduced, and the production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of forging industry equipment, and in particular relates to a hydraulic system and a control method for controlling an energy-saving pump. Background technique [0002] With the development of hydraulic technology in the direction of energy saving and environmental protection, the energy-saving servo pump control hydraulic system using the control system combined with special oil pump and servo motor came into being, and the pump control system will gradually completely replace the valve control system. [0003] After the existing machine tool is started, an ordinary motor is used to control the oil pump. After the machine tool is started, the oil pump overflows through the proportional relief valve. When the machine tool is in the working state, the proportional relief valve is used to control the pressure. The reversing valve returns to the oil tank, and the oil passes through the proportional relief valve...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F15B11/08F15B1/02B21J9/14F04B49/00
CPCB21J9/14F04B49/002F15B1/02F15B11/08F15B2211/20515Y02P80/10
Inventor 窦高强刘民祥吕毓军赵小龙刘海
Owner TIANSHUI METALFORMING MACHINE TOOL GROUP