Analysis of the causes of hydraulic cylinder operation failure by the manufacturer? The hydraulic cylinder is a functional component of the hydraulic system, and the occurrence of its operating problems is not only related to the hydraulic cylinder itself, but also to the entire system. Therefore, when cleaning up the operating problems of the hydraulic cylinder, it is necessary to carefully investigate the symptoms of the problem, choose logical reasoning and force one by one method, carefully analyze the cause of the problem from the outside to the inside, and then determine the cleaning method to prevent blind disassembly and unloading. Among the many causes of hydraulic cylinder operation problems, improper equipment, operation, and protection are the reasons for their formation. This type of problem will not be discussed here. This article only provides a systematic analysis of the common typical operating problem - poor hydraulic cylinder operation.
The poor operation of hydraulic cylinders is mostly manifested as: the hydraulic cylinders cannot operate, the hydraulic cylinders are not sensitive (with blocking phenomenon), and the hydraulic cylinders are crawling.
Analysis of the causes of hydraulic cylinder operation failure by the manufacturer? In addition to the most basic conditions for selecting hydraulic cylinders: 1. Inner diameter 2, stroke 3, application pressure 4, and equipment mode, the following conditions are also required: A. When the operating speed of the hydraulic cylinder reaches a certain standard or above after being loaded, a hydraulic cylinder with buffering equipment needs to be selected. When reaching a higher speed, a deceleration valve must be installed outside the hydraulic cylinder. B. Carefully select hydraulic oil and oil seals. Different hydraulic oils are suitable for oil seals made of different materials to ensure the lifespan of hydraulic cylinders.
Nowadays, some manufacturers have changed to ductile iron to reduce costs, such as piston rods not being quenched and tempered, rod plating not being good, and cylinder barrel smoothness not being achieved. The guide sleeve should be made of copper instead. Although the cost has been reduced, the quality of the hydraulic cylinder does not meet the requirements. In order to fully meet the user's requirements, in addition to the above two elements, the correct use and timed protection of hydraulic cylinders are also important. Before using the oil cylinder, it should be deflated, the buffer regulating valve should be adjusted to a reasonable position, the cleanliness of the oil should be checked regularly, the dust on the oil cylinder should be sorted out regularly, and attention should be paid to waterproofing and fire prevention. In the past twenty years, the hydraulic profession in China has developed rapidly, and hydraulic cylinders can completely replace imports. Based on our experience, the processing level of hydraulic cylinders has been thoroughly passed by domestic manufacturers. The key lies in sealing components, and domestic seals cannot completely replace imports. Therefore, we advocate that in important applications, it is best to choose imported parts for sealing components, such as NOK seals from Japan.
Analysis of the causes of hydraulic cylinder operation failure by the manufacturer? The phenomenon of hydraulic cylinders not functioning often occurs on hydraulic cylinders that have just ended the equipment. When cleaning up this problem, the first thing to look for is the external cause of the hydraulic cylinder: whether the resistance of the moving parts of the hydraulic cylinder is too large, and whether there are conditions such as jamming, wedging, or pressing against other components; Does the inlet pressure reach the specified value. After cleaning the external factors, further investigate the reasons for the connotation of the hydraulic cylinder and adopt corresponding cleaning methods.