A New Type of Hydraulic Rotary Oil Distribution (Oil Supply) Device

Abstract

The invention discloses a novel hydraulic rotary oil distribution (oil supply) device which comprises a main shaft, a shaft sleeve and an end cover, wherein a bearing I and a bearing II are arranged at two ends of the main shaft; elastic collars (I and II) are used for axial positioning of the bearings (I and II) respectively; a spacer ring is arranged between the bearing I and a rotary oil seal; the end cover is arranged at an end part of the shaft sleeve; an O-ring is arranged on the end cover; an oil inlet passage A, an oil outlet passage B and a circular cavity are formed in the upper part of the shaft sleeve; return oil passages (A and B) are formed in the lower part of the shaft sleeve. The novel hydraulic rotary oil distribution (oil supply) device is high in strength, friction resistance, corrosion resistance, and high temperature resistance, contains copper alloy of high lubricating function, and is ingenious and reasonable in structure; the machining accuracy and the assembly accuracy of parts are ensured as a dedicated fixture and main shaft fit grinding technology is adopted for processing and assembly. Compared with the prior art, the novel hydraulic rotary oil distribution (oil supply) device has the advantages of being simple in structure, low in cost, high in wear resistance, reliable in sealing, long in service life, low in failure rate, convenient to maintain and the like.

Description

technical field [0001] The invention relates to the technical field of oil distribution (oil supply) to rotary working hydraulic oil cylinders, in particular to a novel hydraulic rotary oil distribution (oil supply) device. Background technique [0002] The hydraulic system is an important part of modern industrial production, occupies a pivotal position and plays a key role in the realization of industrial automation. The hydraulic cylinder is the key actuator for reciprocating motion in the hydraulic system. In the process of modern industrial production, it is sometimes necessary to combine the reciprocating and rotating movements of hydraulic cylinders to achieve specific mechanical actions and functions. [0003] The structural representation of the technical solution for realizing this function is as shown in the attached drawing of the description. figure 2 shown. Among them, 1-main shaft, 2-skeleton oil seal, 3-bearing Ⅰ, 4-oil cup, 5-installation seat, 6-spline s...

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Problems solved by technology

[0004] The device used in the above technical solution is large in size and complex in structure, and the cost of each set is as high as 35,000 yuan. During the application process, failures such as bearing failure, spline shaft wear, skeleton oil seal leakage, and oil and sediment entering the interior often occur. To replace bearings, skeleton oil seals, and spline shafts, and to clean up internal oil and sediment, the maintenance cost reaches about 1,000 yuan per month, and each maintenance takes at least half a shift (4 hours)

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