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Dynamic compensation control system for flow and pressure of accumulators

A dynamic compensation and control system technology, applied to the driving device of forging presses, etc., can solve problems such as low start-up rate and operating efficiency, increased project investment, and increased production and operating costs, so as to reduce power consumption, purchase costs, The effect of improving operating efficiency

Pending Publication Date: 2019-01-22
NANJING DEV ADVANCED MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With such a high installed power, the operating rate and operating efficiency are very low, resulting in increased project investment and increased production and operating costs

Method used

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  • Dynamic compensation control system for flow and pressure of accumulators
  • Dynamic compensation control system for flow and pressure of accumulators
  • Dynamic compensation control system for flow and pressure of accumulators

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Embodiment Construction

[0035] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention but not to limit the scope of the present invention.

[0036] figure 1 It is a schematic diagram of the working principle of the present invention. It can be seen from the accompanying drawings that the accumulator flow and pressure dynamic compensation control system includes several high-pressure accumulators 2 and accumulator control valve blocks 4. The medium and high-pressure accumulators 2 include For several oil tanks 12-1 and gas tanks 12-2, the oil tank outlet pipes are directly connected to the accumulator control valve block 4, and the accumulator control valve block 4 controls the output compensation flow of the oil tank.

[0037] The accumulator control valve block 4 includes a high-frequency response proportional valve ...

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Abstract

The invention discloses a dynamic compensation control system for flow and pressure of accumulators. The dynamic compensation control system for flow and pressure of the accumulator comprises a plurality of medium and high pressure accumulators and accumulator control valve blocks, each medium and high pressure accumulator comprises a plurality of oil tanks and gas tanks, a pipe of an outlet of each oil tank is connected with an accumulator control valve block, and the accumulator control valve blocks control compensation flow of output of the oil tanks. By the accumulators and the accumulatorcontrol valve blocks, output of maneuvering flow of the oil tanks can be controlled through a high frequency response proportional valve according to a process load curve of a hydraulic machine, in acycle period, power stored by the accumulators dynamically compensate flow required for a direct transmission system of an oil pump in a medium and low voltage load stage, thus, a main cylinder meetsthe requirement for specified working speed, and the main cylinder can serve as a pilot control oil source of a whole hydraulic system. By the dynamic compensation control system for flow and pressure of accumulators, installing total power required for establishment of an independent pump station of each hydraulic machine can be greatly reduced, idle or less power consumption of the accumulatorsis reduced effectively, the running efficiency is improved, the purchasing cost of the hydraulic system can be reduced remarkably, and project investment and production and running costs are reduced.

Description

technical field [0001] The invention relates to a flow and pressure dynamic compensation control system of an accumulator, and belongs to the technical field of metal plastic forming hydraulic presses. Background technique [0002] The hydraulic transmission pump station is the power source of the large die forging hydraulic press and the most important technical heart of the equipment. When working, the huge force and working speed issued by the working cylinder of the hydraulic press are transmitted by the hydraulic pump station. Therefore, the pressure energy, flow rate, and power consumption of the hydraulic pump station must meet the characteristic requirements of different production processes and the economic requirements of equipment operation. [0003] At present, the hydraulic transmission system used in large-scale die forging hydraulic presses generally has the following two methods: [0004] The traditional water pump-accumulator transmission system can only p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J9/20B21J9/12
CPCB21J9/12B21J9/20Y02P70/10
Inventor 郭玉玺张利
Owner NANJING DEV ADVANCED MFG
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