On the prospects of China's development of hydraulic stand

Date： 1970-01-01

Our hydraulic industry after nearly 50 years of development, already has a general demand considerable strength and technological level of production, can basically meet the economic development, in which the supporting rate of major outfit more than 60%. Especially in the last 10 years, the rapid growth of downstream industries, and actively promote the growth of hydraulic industry. Hydraulic cylinder is one of the more mature product in the product.

Industry to maintain rapid growth for many years, has formed a relatively mature supply chain, with a large market size. Data show that China's hydraulic industry sales revenue growth from 3.1 billion yuan in 2005 to 2010, nearly 110 million, five-year compound growth rate of 28.83%. However, the same hydraulic industry, the country's total industrial output value of cylinder ratio is still low, far below the level of developed countries. Meanwhile, China has a strong market demand and low cost, it is expected to become the focus of world trade and the hydraulic cylinder industry.

This case I believe we will often encounter, because any use of the hydraulic pump stood a long time, there will be more or less pressure shortage. Hydraulic pump hydraulic station is installed, such as quantitative vane pump, variable vane pump, variable displacement piston pump, internal gear pump or external gear pump speed is too low. Relief valve damage. In fact, this and just after a hydraulic oil spill is all they are returned to overflow the mailbox is the same reason, and either repair or replacement. Mailbox is too low hydraulic oil. Accordance with the formal requirements of the hydraulic system, put the oil when the oil is added to specify the height of the oil tank level gauge. Hydraulic pump, such as quantitative vane pump, variable vane pump, variable displacement piston pump, internal gear pumps and external gear pump and cylinder or motor damage, within the vent large. Integrated fast channel design problems. This is entirely hydraulic system design level workers the ability to question, good hydraulic system design engineer is not such a problem, there is no hydraulic pressure is actually rarely seen, we may come from this cause every detail to proceed with an analysis of the problem. Hydraulic pump, such as an external gear pump, gear pumps, variable displacement piston pump, vane pump or quantitative variable vane pump is damaged, it can not suck oil. The above quantitative hydraulic vane pump directional control device in the wrong place in the hydraulic system of the hydraulic pump drive is broken. Hydraulic oil spill after all they are all overflow back to the mailbox.

This relief is obvious there is a problem, for the relief of these gadgets actually specialized repair it is very troublesome, directly replaced. Hydraulic pump suction does not go hydraulic oil. The cause should not put the oil inside the mailbox or filter clogged. In fact, this situation met many times, customers buy a new pump station that there is oil in the mailbox, and then brought it placed on the machine, and then complaining about a problem with the hydraulic system.

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