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[CN201810796241.X] A hydraulic machine replenishment and cooling control system controlled by frequency conversion
[CN201810796241.X] Title of a frequency conversion controlled hydraulic machine replenishment and cooling control system: A frequency conversion controlled hydraulic machine replenishment and cooling control system Application number: CN201810796241.X Applicant: Tianjin Tianforging Press Co., Ltd. Application date: 2018-7-19 Patent type: Invention application The present invention discloses a frequency conversion controlled hydraulic machine replenishment and cooling control system, which belongs to the technical field of metal extrusion molding, the maximum flow rate required for cooling the hydraulic press is 2000L/min, and the pressure is 30bar; the maximum flow rate is 3300L/min and the pressure is 10bar when the hydraulic press is replenished; it is characterized in that it at least includes: a six-stage motor that drives a 2200cc/r screw pump; and a frequency converter that drives the six-stage motor to act. The invention adopts a frequency converter to control a low-pressure and large-flow screw pump, which meets the flow and pressure requirements of the system replenishment when the equipment rises normally, effectively reduces the number of system oil pump configurations, and in terms of value, it is equivalent to saving 8 groups The configuration of the fixed displacement pump motor effectively reduces the cost of system configuration and also reduces the floor space of the entire hydraulic and electrical system.
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