A corrosion-resistant hydraulic cylinder
A hydraulic cylinder and corrosion-resistant technology, applied in the field of hydraulic cylinders, can solve the problems of insufficient cylinder protection and weak corrosion resistance, and achieve the effect of simple structure, corrosion prevention and direct contact
Inactive Publication Date: 2017-09-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
[0003] In order to overcome the deficiencies of the prior art, the present invention provides a corrosion-resistant hydraulic cylinder, which solves the problems of weak corrosion resistance and insufficient protection for the cylinder barrel of the existing products
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Embodiment Construction
[0007] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0008] refer to figure 1 , a preferred embodiment of the present invention provides a corrosion-resistant hydraulic cylinder, including a cylinder 1, a piston 2 and a piston rod 3, the surface of the piston rod 3 is provided with at least one anti-corrosion layer, and it is characterized in that it also includes the left side of the piston 2 The driving pressure chamber 4 and the stainless steel protection cylinder 5 filled with lubricating oil arranged on the outer periphery of the cylinder 1, one end of the stainless steel protection cylinder 5 is in sealing connection with the outside of the cylinder 1, and the other end is connected with the guide fixedly arranged at the front end of the cylinder 1 The flow ring 6 is sealed and connected, the inside of the flow guide ring 6 is close to the outside of the piston rod 3, and the flow guide r...
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The invention provides a corrosion-resistant hydraulic cylinder. The corrosion-resistant hydraulic cylinder comprises a cylinder barrel, a piston, a piston rod, a driving pressure chamber and a stainless steel protecting barrel, wherein at least one corrosion-resistant layer is arranged on the surface of the piston rod; the driving pressure chamber is formed in the left side of the piston; the stainless steel protecting barrel is arranged on the periphery of the cylinder barrel and is filled with lubricating oil; one end of the stainless steel protecting barrel is hermetically connected with the outer side of the cylinder barrel; the other end of the stainless steel protecting barrel is hermetically connected with a flow guiding ring which is fixedly arranged at the front end of the cylinder barrel; the inner side of the flow guiding ring clings to the outer side of the piston rod; an annular groove is formed in the flow guiding ring; the lubricating oil can flow through the annular groove slowly; and a plurality of inclined flow guiding holes are formed between the driving pressure chamber and the stainless steel protecting barrel. By the corrosion-resistant layers and lubricating measures, corrosion of the piston rod is avoided to a maximum extent; and moreover, by the stainless steel protecting barrel, the cylinder barrel is protected effectively, and an oil line is provided for lubrication on the piston rod. The corrosion-resistant hydraulic cylinder is simple in structure and high in corrosion resistance; and the service life of the hydraulic cylinder can be prolonged effectively.
Description
technical field [0001] The invention relates to a hydraulic cylinder, in particular to a corrosion-resistant hydraulic cylinder. Background technique [0002] Existing hydraulic cylinders are mainly composed of cylinder barrels, pistons, piston rods, guide sleeves, rear end covers and seals. Since the piston rods of existing hydraulic cylinders generally do not have anti-corrosion treatment, the piston rods cannot enter the water, so use The scope is limited. In addition, in order to enhance its corrosion resistance, the existing hydraulic cylinder piston rod is coated with several layers of anti-corrosion coatings on its outer circumference. Although this avoids the corrosion of the piston rod to a certain extent, its corrosion resistance is affected by the coating material. Larger, limited corrosion resistance, and the existing hydraulic cylinder does not protect the cylinder well enough, causing the cylinder to corrode easily over time, which also affects the service lif...
Claims
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IPC IPC(8): F15B15/14F16N11/10
CPCF15B15/14F16N11/10
Inventor 嵇海旭梁秀娟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY