Four-pull-rod type hydraulic oil cylinder
A technology of hydraulic cylinders and tie rods is applied in the direction of fluid pressure actuating devices, engine seals, engine components, etc., which can solve problems such as affecting the normal operation of other components, polluting the surrounding working environment, leaking energy hydraulic oil, etc., to increase service life. and work efficiency, improve work efficiency and service life, and increase the effect of service life
Inactive Publication Date: 2017-12-26
JIANGYIN DONGREN MACHINERY
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Problems solved by technology
Problems will still occur during work, such as leakage of energy and hydraulic oil, pollution of the surrounding working environment, and affecting the normal operation of other components
Method used
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[0008] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0009] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0010] Such as figure 1 Shown is a four-rod hydraulic cylinder, which includes a cylinder bottom, the cylinder bottom is connected to the cylinder body, there is a piston in the cylinder body, a piston rod in the piston, and a cylinder top at the other end, and a first guide sleeve in the cylinder top, There is a second guide sleeve outside the first guide sleeve, a first sealing ring is set at the clearance hole between the cylinder body and the piston rod, four tie rods are connected between the cy...
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The invention discloses a four-bar hydraulic oil cylinder, which includes a cylinder bottom connected to a cylinder body, a piston in the cylinder body, a piston rod in the piston, a cylinder top at the other end, and a first guide sleeve in the cylinder top. There is a second guide sleeve outside the first guide sleeve, a first sealing ring is set at the clearance hole between the cylinder body and the piston rod, four tie rods are connected between the cylinder bottom and the cylinder top, and a support frame is set up and down between the piston and the cylinder body. A second sealing ring is arranged at the interface between the piston and the piston rod, a dust cover is arranged at the gap between the piston rod and the second guide sleeve, a film layer is added to the inner wall surface of the piston, and an O-ring is arranged on the piston rod. The beneficial effects of the invention are: when the hydraulic cylinder is working, the movement between the piston and the piston rod will inevitably cause leakage, and the sealing ring can avoid leakage and ensure stability.
Description
technical field [0001] The invention relates to the mechanical field, in particular to a four-bar hydraulic oil cylinder. Background technique [0002] After nearly 50 years of development, my country's hydraulic industry has already had considerable production strength and technical level, which can basically meet the general needs of economic development, and the supporting rate of major complete sets of equipment has reached more than 60%. Especially in the past 10 years, the rapid growth of the downstream industry has actively promoted the growth of the hydraulic industry. Oil cylinder is one of the most mature products in my country's hydraulic products. The industry has maintained rapid growth for many years, and has formed a relatively mature supply and demand chain with a large market size. The hydraulic oil enters the cylinder through a one-way valve through manual pressurization. At this time, the hydraulic oil entering the cylinder cannot be reversed because of ...
Claims
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IPC IPC(8): F15B15/14F16J15/32F16J15/3284
CPCF15B15/14F15B15/1447F15B15/1461F15B15/1471
Inventor 周依青
Owner JIANGYIN DONGREN MACHINERY