A water film device for protecting a hydraulic cylinder and its protection method
A protective device and hydraulic cylinder technology, which is applied in the hydraulic field, can solve the problems of corrosion of the piston rod, short life, high loss of spare parts, etc., and achieve the effect of low price, obvious device effect and improved stability
Active Publication Date: 2017-03-22
SHANDONG IRON & STEEL CO LTD
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Problems solved by technology
In some hot-rolling production lines in high-temperature environments with large water mist and small dust particles, the piston rod of the hydraulic cylinder is placed on the outer part. Due to the influence of moisture and high temperature, the piston rod will be corroded. At the same time, moisture and some small particles It will enter the interior of the hydraulic cylinder and the hydraulic system through the seal of the piston rod, causing the hydraulic system to malfunction and the hydraulic cylinder to fail
At present, in order to solve this problem, the usual technical solution is to install a protective cover on the outside of the piston rod of the hydraulic cylinder. The existing protective cover is generally stretchable and has the functions of high temperature resistance and water impermeability, but it will have a short lifespan, Features such as high loss of spare parts
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Embodiment Construction
[0032] The present invention will be further described in detail with the accompanying drawings and specific embodiments.
[0033] Such as figure 1 As shown, the front view of the hydraulic cylinder protection device in the prior art, some hot rolling production lines, in a high-temperature environment with relatively large water mist and small dust particles, the piston rod 2 of the hydraulic cylinder 1 is placed on the outer part, due to moisture, The impact of high temperature will corrode the piston rod. At the same time, water and some small particles will enter the hydraulic cylinder through the seal of the piston rod, and then enter the hydraulic system, resulting in failure of the hydraulic system and failure of the hydraulic cylinder. At present, in order to solve this problem, the usual technical solution is to install a protective cover 3 outside the piston rod of the hydraulic cylinder. The protective cover 3 in the prior art can generally expand and contract, and ...
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The invention discloses a water film device of a protective hydraulic cylinder. The water film device comprises a first protecting device installed on a piston rod and a second protecting device installed on a cylinder body; the first protecting device and the second protecting device are connected through an elastic film. The elastic film is protected by two layers of high pressure water curtains, and the elastic film can further keep the piston rod of the hydraulic cylinder under a dry low-temperature air environment with stable pressure, and protect the piston rod of the hydraulic cylinder from high-temperature radiation, moisture and grain scouring; meanwhile, impurities and moisture cannot enter the inner part of the hydraulic cylinder through the seal of the piston rod, and the stability of the hydraulic system is improved. Moreover, the water curtain of the water film device adopts the elastic film, thus cost of spare parts cannot be generated, the price is low and the device effect is obvious.
Description
technical field [0001] The invention relates to the field of hydraulic pressure, in particular to a water film structural device and a protection method for protecting hydraulic cylinders in a high-temperature dust and water mist environment. Background technique [0002] In the production of enterprises, hydraulic cylinders play a vital role in providing control execution for production. In some hot-rolling production lines in high-temperature environments with large water mist and small dust particles, the piston rod of the hydraulic cylinder is placed on the outer part. Due to the influence of moisture and high temperature, the piston rod will be corroded. At the same time, moisture and some small particles It will enter the interior of the hydraulic cylinder and the hydraulic system through the seal of the piston rod, causing the hydraulic system to malfunction and the hydraulic cylinder to fail. At present, in order to solve this problem, the usual technical solution i...
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IPC IPC(8): F15B15/20F15B20/00F15B21/04
CPCF15B15/20F15B20/00F15B21/04
Inventor 孙业华陈传盛梁玉萍纪冬丽王宝刘明王奇邹元甲
Owner SHANDONG IRON & STEEL CO LTD