What are the common methods for the failure of the beaded cold press?

Check the beaded cold press The hydraulic cold press produced by the hot press manufacturer is mainly composed of a hydraulic system, an electrical control system, a pressure plate and a body. The device has the characteristics of compact structure and good strength, so it is favored by a wide range of users.

However, when the hydraulic cold press exhibits shortcomings in the repair process, some useful diagnosis methods can speed up the time of maintenance, quickly find the defect site, and save time and effort. Do we know of any relatively useful diagnosis methods that can diagnose the shortcomings of the device? The general disadvantages of hydraulic machines and their causes can be roughly divided into the following five aspects: (1) Improper adjustment of hydraulic components, such as: hydraulic pump, oil motor, secondary valve, directional valve, relief valve, unloading valve, balance Errors in valve pressure and flow adjustment; (2) Sealing components are damaged or impurities make the hydraulic components unable to operate normally; (3) Hydraulic components are worn or damaged, such as valve components seal failure, tension spring failure, excessive or excessive vacancy Small; (4) Failure of the electrical control organization of the hydraulic machine, such as: relay failure, poor contact or damage to the button, inaccurate electromagnet equipment, incorrect connection of the motor phase line, etc., which constitute a malfunction of the hydraulic component or a program error; (5) Auxiliary organization Failure, such as: improper adjustment or damage of the position of the limit switch, damage to the pressure gauge, damage to the pressure relay, too large or too small filter mesh of the fuel tank, etc. Although there are many methods to diagnose the shortcomings of hydraulic machines, a certain method of diagnosis is relatively short. Therefore, when using these methods, we should summarize the use of hydraulic machine shortcomings and use scientific instruments, so that it can be scientific, accurate, and economical. Sex and rapidity Find out where the hydraulic press has defects, and make the hydraulic press work normally as soon as possible. Commonly used inspection methods for hydraulic cold press machine shortcomings are as follows: First, replacement method: replace the same components on the hydraulic press of the same type, structure, and principle with the replacement (AC) equipment in the same position, which can quickly prove whether the replaced component is There are shortcomings and reliable. The advantage of this method is that even if the repairer has a low level of skill, he can quickly use this method to make correct judgments and treatments for the shortcomings of the hydraulic press. However, the use of this method must be based on the same type, the same structure, the same hydraulic principle and the same hydraulic components, so this method has great limitations and relatively blindness. The second auxiliary method: With the help of simple auxiliary parts, confirm whether the hydraulic hydraulic components have defects. The artificial reversing method uses the ejector rod to reverse the hydraulic valve components, and it can be diagnosed whether the reversing valve appears to be stuck, the valve core is not in place, and other shortcomings. This method can confirm whether the hydraulic components are defective without disassembling the components, avoiding excessive disassembly work, reducing the time for diagnosis of defects, and facilitating rapid diagnosis, especially with regard to defects such as larger oil cylinder seals. Very useful. The third experience method: through the hydraulic system theory of the hydraulic press, the maintenance personnel understand the structure and operating principle of each hydraulic component, and on the basis of a wealth of practical experience, conduct a comprehensive analysis of the shortcomings of the hydraulic press, and make a correct diagnosis.