Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder
A technology of combining piston and hydraulic cylinder, applied in the direction of piston, piston ring, cylindrical piston, etc., can solve the problems of poor wear resistance, high temperature stuck cylinder, low temperature sealing failure, etc., to reduce weight, strengthen sealing effect, and prolong service life Effect
Inactive Publication Date: 2015-12-30
UNIV OF JINAN
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Problems solved by technology
[0004] The present invention aims at the problems of high-temperature stuck cylinder, low-temperature seal failure and poor wear resistance existing in the use of some existing hydraulic cylinder pistons, and provides a high-temperature-resistant, cold-resistant and wear-resistant hydraulic cylinder that can effectively solve the above problems Combined piston device
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[0021] Such as figure 1 As shown, a high temperature-resistant, cold-resistant and wear-resistant hydraulic cylinder combined piston device of the present invention mainly includes a piston rod 8, a piston, an elastic sleeve, a ceramic sleeve 3, an elastic ring 9, a sealing ring 10, an elastic washer 6 and a lock The tight nut 7 is formed, the piston is formed by the docking of the left convex plate 5 and the right convex plate 1, the elastic sleeve is divided into the left elastic sleeve 4 and the right elastic sleeve 2, and the elastic ring 9 and the sealing ring 10 are installed in the groove of the ceramic sleeve 3 in sequence.
[0022] The head end of the piston rod 8 is provided with two external threads connecting the lock nut 7, and the head end of the piston rod 8 is sequentially installed with the lock nut 7, the elastic washer 6, the left convex plate 5, the right convex plate 1, Elastic washer 6 and lock nut 7, elastic washer 6 adopt rubber material. This design c...
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The invention provides a composite piston device with high temperature resistance, cold resistance and wear resistance for a hydraulic cylinder. The composite piston device mainly comprises a piston rod, a piston, elastic sleeves, a ceramic liner, an elastic ring, a sealing ring, an elastic washer and a locking nut, wherein the piston is formed by butting a left raised disk with a right raised disk; the elastic sleeves comprise a left elastic sleeve and a right elastic sleeve; the elastic ring and the sealing ring are sequentially arranged in an inner groove of the ceramic liner. The composite piston device is characterized in that high temperature, cold resistance and wear resistance of the piston are realized by the ceramic liner and the silicone rubber sealing ring which are arranged on the piston; according to the composite piston device disclosed by the invention, by combining the piston and the ceramic liner, the high temperature, the cold resistance and the wear resistance of the piston are realized while the integral weight of the piston is reduced; the sealing of the piston at high temperature and low coldness is realized by using the silicone rubber sealing ring with an inverted trapezoidal structure; automatic sealing adjustment of the sealing ring and temporary storage of leaked oil are realized by the elastic ring and a clearance oil storage area below the sealing ring.
Description
technical field [0001] The invention relates to a high temperature resistant, cold resistant and wear-resistant hydraulic cylinder combined piston device, in particular to a combination piston and ceramic sleeve, while reducing the overall weight of the piston, the high temperature resistance, cold resistance and wear resistance of the piston can be realized; The silicone rubber sealing ring with an inverted trapezoidal structure can strengthen the sealing of the piston under high temperature and low cold; through the elastic ring and the gap oil storage area under the sealing ring, the automatic adjustment sealing of the sealing ring and the temporary storage of oil leakage are realized, which belongs to the hydraulic cylinder technology research and development field. Background technique [0002] Hydraulic cylinders use the linear reciprocating motion of the piston to convert hydraulic energy into mechanical energy. However, due to the singleness of the current piston st...
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IPC IPC(8): F16J1/12F16J1/01F16J9/20F16J9/28
Inventor 安延涛赵东杨玉娥刘鲁宁杨可森
Owner UNIV OF JINAN