Multi-stage hydraulic oil cylinder with long service life

Abstract

The invention discloses a long-life multi-stage hydraulic oil cylinder, and belongs to the field of hydraulic oil cylinders, the long-life multi-stage hydraulic oil cylinder comprises a cylinder body, the top end of the cylinder body is movably connected with a multi-stage telescopic rod, the side wall of the cylinder body is fixedly connected with a round shell, the inner wall of the round shell is fixedly connected with an annular partition plate, the left side of the annular partition plate is an air cooling cavity, and the right side of the annular partition plate is a water cooling cavity; a plurality of air inlet holes are formed in the side wall of the round shell, a driving mechanism is arranged on the top face of the centrifugal fan blade, a conveying mechanism is arranged on the side wall of the round shell, and lubricating smearing mechanisms are arranged at the top ends of the cylinder body and the multi-stage telescopic rod correspondingly. Two hydraulic pipes are symmetrically and fixedly connected to the side wall of the cylinder body, heat dissipation treatment can be conducted on the hydraulic cylinder in time when the hydraulic cylinder operates, meanwhile, a proper amount of lubricating liquid can be smeared on a multi-stage telescopic rod of the hydraulic cylinder, and oil leakage caused by too large friction between the multi-stage telescopic rod and a sealing ring is reduced.

Description

technical field [0001] The invention relates to the field of hydraulic oil cylinders, and more particularly, to a long-life multistage hydraulic oil cylinder. Background technique [0002] Hydraulic cylinder is a device that can convert hydraulic energy into mechanical energy, which can convert hydraulic energy into linear motion. According to the structure, it can be divided into: piston cylinder, plunger cylinder and swing cylinder, etc. on multiple devices. [0003] After patent search, it was found that the Chinese patent with publication number: CN215861072U discloses a long-life multi-stage hydraulic cylinder. The hydraulic cylinder can extend the service life of the hydraulic cylinder by providing dust-proof parts. Prevent dust from entering the interior of the hydraulic cylinder to increase its service life. During the long-term operation of the hydraulic cylinder, a large amount of heat will be generated on the surface and the internal hydraulic oil. If the heat is...

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Problems solved by technology

[0003] Through patent retrieval, it is found that the Chinese patent publication number: CN215861072U discloses a long-life multi-stage hydraulic cylinder. The hydraulic cylinder can prolong the service life of the hydraulic cylinder by arranging dust-proof components. However, when the device is actually used, it is only through Prevent dust from entering the interior of the hydraulic cylinder to increase its service life. During the long-term operation of the hydraulic cylinder, the surface and internal hydraulic oil will generate a lot of heat. Excessive heat will cause the seal ring to fail and the distance between the oil molecules will become larger. Air bubbles and the final result are the direct causes of oil leakage, so it is necessary to dissipate heat from the hydraulic cylinder in time

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