Air chamber spring combination buffer slow-release accommodating cavity arranged on oil cylinder head
An oil cylinder and cavity technology, which is applied in the field of air chamber spring combined buffer and slow release cavity, can solve problems such as little effect, and achieve the effect of preventing impact and saving energy.
Inactive Publication Date: 2013-08-07
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
For these reasons, people have conducted a lot of research and discussion, but these are inherent to the nature of the mainframe work, making people's efforts to improve or alleviate this impact and energy consumption through more reasonable matching have little effect
Method used
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Embodiment Construction
[0012] The specific embodiment of the present invention is: in the start-up process of the oil cylinder, the speed of the oil cylinder is increased from a standstill, and the excess flow will inevitably cause the pressure in the rodless chamber of the oil cylinder to rise rapidly. The sum of the pressure generated by the internal gas pressure plus the spring force of the spring 4, the excess flow will push the piston 3 to further compress the inert gas and the spring 4, and the flow will flow into the cavity between the piston 3 and the screw cap 1 to ease the start of the cylinder impact; and when the impact pressure in the rodless chamber of the oil cylinder decreases with the increase of the speed of the cylinder, the fluid that originally entered the cavity at the left end of the piston 3 will gradually flow back to the rodless chamber under the action of the compressed inert gas and the spring 4. Work is done, energy is saved, and the impact of backflow flow is prevented.
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An air chamber spring combination buffer slow-release accommodating cavity arranged on an oil cylinder head is structurally formed by a spiral cover 1, a cylinder barrel 2, a piston 3, a spring 4, the oil cylinder head 5, an inflating one-way valve 6 and a one-way throttle valve 7. The air chamber spring combination buffer slow-release accommodating cavity is characterized in that the end of the oil cylinder head 5 towards the cylinder barrel 2 is provided with a step blind hole, and the piston 3 and a small blind hole form an accommodating cavity; the sum of pressure of inert gas in the accommodating cavity and pressure generated by pre-tightening spring force of the spring 4 is slightly larger than working pressure of an oil cylinder; the left end of the piston 3 is communicated with a rodless cavity of the oil cylinder through the one-way throttle valve 7 positioned on the spiral cover 1; and equivalently, a combination energy accumulator is arranged on the oil cylinder head 5. In the starting process of the oil cylinder, redundant flow can be distributed to enter the accommodating cavity between the piston 3 and the spiral cover 1 to relieve starting impact of the oil cylinder; when impact pressure in the rodless cavity of the oil cylinder is reduced, the flow flows back to the rodless cavity again to enable the rodless cavity to do work again, energy is saved, and impact of the backflow flow is avoided.
Description
1. Technical field: [0001] The invention relates to an air-chamber-spring combined buffering slow-release chamber arranged on a cylinder head of an oil cylinder. 2. Background technology: [0002] With the development of my country's industry, hydraulic transmission and control have been widely used in various types of heavy machinery and equipment. [0003] The hydraulic cylinder is the most important actuator in the hydraulic transmission system. Its performance plays a big role in the performance of the host. [0004] With the development of hydraulic technology towards high pressure and high speed today, the start-up shock and reversing shock of the hydraulic cylinder have brought a large hydraulic shock to the main engine, causing vibration and noise of the main engine, which can easily lead to early damage to the hydraulic oil pump. . The hydraulic impact causes unnecessary consumption of energy, which makes the hydraulic system of the main engine heat up rapidly, w...
Claims
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Inventor 陈曦
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY