Revolving joint
A technology of rotary joint and rotary cylinder, applied in the direction of pipe/pipe joint/pipe fitting, adjustable connection, passing element, etc., can solve the problems of short service life, low sealing performance, easy aging, etc., to reduce labor intensity and improve sealing performance, the effect of prolonging the aging period
Inactive Publication Date: 2010-11-24
蔡荣锁
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Problems solved by technology
[0002] At present, the internal sealing device of the old-fashioned rotary joint is simple, only one skeleton seal and one O-ring seal, the sealing performance is low, and the material of the seal is NBR, which is easy to age and has a short service life
The rotation of the old-fashioned rotary joint is carried out by steel balls. Due to the influence of external gravity, there will be a lot of friction between the steel balls and the groove, and there will be a lot of resistance when rotating, which makes it very difficult for the connected pipes to rotate. Increased labor intensity of operators
In addition, the old-fashioned rotary joints are welded with steel pipes, which makes it very troublesome to replace the seals. When replacing, the steel pipes need to be cut off. After the seals are replaced, the rotary joints are welded to the steel pipes, which increases the difficulty of maintenance. cost
Method used
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0019] refer to figure 1 The rotary joint described in the present invention is generally used for the connection of rotary pipelines, such as the connection of oil pipe joints and other devices that need to be rotated, including the casing 3 and the rotary cylinder 4 arranged in the casing 3. The outer sides of the upper and lower ends are respectively provided with pressure sealing covers 2, and the pressure sealing covers 2 are connected with the housing 3, and the feature is that: between the housing 3 and the rotating cylinder 4, a bearing 6 is respectively arranged on the inner sides of the pressure sealing cover 2, An outer positioning ring 7 is arranged between the two bearings 6, the lower pressure sealing cover 2 is connected with the housing 3 through bolts 11, a first seal is arranged between the housing 3 and the pressure sealing cover 2, and the lower p...
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The invention discloses a revolving joint, which comprises a shell and a revolving drum arranged in the shell. Squeeze caps are arranged outside the upper and lower ends of the revolving drum respectively, and are connected with the shell. The revolving joint is characterized in that: bearings are arranged on the two inner sides of the squeeze caps between the shell and the revolving drum respectively; an outer positioning ring is arranged between the two bearings; the squeeze cap at the lower end is connected with the shell by bolts; a first sealing element is arranged between the shell and the squeeze cap; and a second sealing element is arranged between the squeeze cap at the lower end and the revolving drum. The revolving joint of the invention has the characteristics of high sealing property, long service life, light and convenient operation, convenient maintenance and low cost.
Description
technical field [0001] The invention relates to a rotary joint, which belongs to the field of mechanical accessories. Background technique [0002] At present, the internal sealing device of the old-fashioned rotary joint is simple, only one skeleton seal and one O-ring seal, the sealing performance is low, and the material of the seal is nitrile rubber, which is easy to age and has a short service life. The rotation of the old-fashioned rotary joint is carried out by steel balls. Due to the influence of external gravity, there will be a lot of friction between the steel balls and the groove, and there will be a lot of resistance when rotating, which makes it very difficult for the connected pipes to rotate. Increased labor intensity of operators. In addition, the old-fashioned rotary joints are welded with steel pipes, which makes it very troublesome to replace the seals. When replacing, the steel pipes need to be cut off. After the seals are replaced, the rotary joints ar...
Claims
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IPC IPC(8): F16L27/00
Inventor 蔡荣锁
Owner 蔡荣锁