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Forging Hydraulic Control Method Based on Double Monitoring System

A monitoring system and control method technology, applied in the field of hydraulic presses, can solve the problems of large power grid impact, low-voltage motor power, and large floor space, and achieve the effects of convenient implementation, improved working accuracy, and simple structure

Active Publication Date: 2017-02-08
TIANJIN TIANDUAN PRESS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of science and technology in our country, the demand for heavy machinery is increasing, and the application of large-tonnage hydraulic presses is also increasing, especially in the field of free forging hydraulic presses, the tonnage has risen from several thousand tons to tens of thousands of tons , and the requirements for forging accuracy are getting higher and higher. At present, due to the heavy tonnage of large-tonnage heavy-duty hydraulic presses and relatively large strokes, at the same time, traditional forging hydraulic presses generally use low-voltage motors as power sources, which makes the actual production There are many problems: first, the power of the low-voltage motor is relatively small, and more than a dozen motors can be selected to meet the requirements of the production cycle, so the floor area is large and there are many cables; secondly, the current of the low-voltage motor is large, and it will impact the grid when starting relatively large

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  • Forging Hydraulic Control Method Based on Double Monitoring System

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Embodiment Construction

[0016] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0017] See figure 1 , in order to improve the safety performance of the forging hydraulic press, the present invention uses a dual monitoring system to monitor the forging hydraulic press in real time, wherein: the above-mentioned dual monitoring system is composed of a medium-voltage monitoring system and a PLC monitoring system; the above-mentioned medium-voltage monitoring system is a comprehensive relay protection device ; The concrete technical scheme of this specific embodiment is:

[0018] A forging hydraulic control method based on a double monitoring system, comprising the following steps:

[0019] Step 101, the medium voltage monitoring system and the PLC monitoring system perform self-inspection and initialization;

[0020] Step ...

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Abstract

The invention discloses a forging hydraulic press control method based on dual monitoring systems and belongs to the technical field of hydraulic presses. The dual monitoring systems consist of a medium pressure monitoring system and a PLC (Programmable Logic Controller) monitoring system, wherein the medium pressure monitoring system is a comprehensive relay protection device. The method comprises the following steps that (1) the medium pressure monitoring system and the PLC monitoring system carry out self-check and initialization; (2) when both a diagnostic result of the medium pressure monitoring system and a diagnostic result of the PLC monitoring system are normal, a forging hydraulic press is started up; and (3) when either the diagnostic result of the medium pressure monitoring system or the diagnostic result of the PLC monitoring system is abnormal, a forging procedure is terminated, and alarm signals are sent out. According to the method, the medium pressure monitoring system and the PLC monitoring system are used for carrying out common diagnosis on the state of the forging hydraulic press, and a fault is cut off promptly when the fault occurs, so that the automatic control on the systems is realized, the error rate is reduced, and the security of the systems is improved; and meanwhile, the method has the advantages of simple structure, convenience in implementation and high control accuracy.

Description

technical field [0001] The invention belongs to the technical field of hydraulic presses, in particular to a forging hydraulic control method based on a dual monitoring system. Background technique [0002] With the continuous advancement of science and technology in our country, the demand for heavy machinery is increasing, and the application of large-tonnage hydraulic presses is also increasing, especially in the field of free forging hydraulic presses, the tonnage has risen from several thousand tons to tens of thousands of tons , and the requirements for forging accuracy are getting higher and higher. At present, due to the heavy tonnage of large-tonnage heavy-duty hydraulic presses and relatively large strokes, at the same time, traditional forging hydraulic presses generally use low-voltage motors as power sources, which makes the actual production There are many problems: first, the power of the low-voltage motor is relatively small, and more than a dozen motors can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
Inventor 计鑫
Owner TIANJIN TIANDUAN PRESS CO LTD
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