Rotating joint

Abstract

The invention discloses a rotating joint. The rotating joint comprises an outer shaft sleeve, a core shaft and a plurality of oil pipes. The core shaft is arranged in the outer shaft sleeve in a sleeved mode, and the outer end face of the core shaft is arranged outside the outer end of the outer shaft sleeve and is attached to the outer end of the outer shaft sleeve. The core shaft is of a hollowstructure. The outer shaft sleeve is provided with a plurality of oil holes. The multiple oil pipes are all arranged in the core shaft and fixed to the inner wall of the core shaft, one ends of the multiple oil pipes are correspondingly connected with the multiple oil holes, and the other ends of the multiple oil pipes are all arranged on the outer end face of the core shaft. According to the rotating joint, the processing technology of the rotating joint can be simplified, and meanwhile, the rejection rate is reduced, and the cost is reduced.

Description

technical field [0001] The present invention relates to fluid connections, and more particularly, to a swivel joint. Background technique [0002] The rotary joint is a closed rotary connector that rotates 360° to transport the medium. The function of the rotary joint is to input the liquid from the side of the pipeline into the rotating or reciprocating equipment, and then discharge it from it. It is a sealing device for the connection. The application fields of rotary joints cover almost every processing and manufacturing industry, such as: metallurgy, machine tools, power generation, petroleum, rubber, plastics, textiles, printing and dyeing, pharmaceuticals, cigarettes, papermaking, food, feed processing, etc. [0003] Existing rotary joints such as figure 1 As shown, the mandrel 1 is sleeved in the outer shaft sleeve 2, and several oil holes 3 are opened on the outer shaft sleeve 2, and several inner holes 4 are opened on the mandrel 1, several inner holes 4 and severa...

AI Technical Summary

Problems solved by technology

[0004] However, the existing mandrel often adopts a solid inner mandrel, and the inner channel is formed by drilling a deep hole on the solid inner mandrel. When more inner channels need to be processed, once one of the holes is drilled deviation, it will cause the entire product to be scrapped

from figure 1 It can be seen from the figure that if the design is porous and has a deep inner channel, even if the hole depth is greater than 1000mm, if it is a slender hole, it will bring great difficulty to the processing, making the entire processing process time-consuming and laborious.

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