A mixed friction self-lubricating rotary sealing device
A rotary sealing and mixed friction technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of high friction, affecting the use of sealing devices, dislocation and damage of internal components, etc., to reduce pressure, improve service life, simple structure
Active Publication Date: 2019-03-01
FUJIAN MINXUAN TECH
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Problems solved by technology
[0003] Most of the existing rotary sealing devices are mechanical boundary friction structures, which have high friction and are inconvenient to use, and when internal components are corroded or long-term vigorous rotation causes internal components to be misplaced and damaged, the use of the sealing device will be affected
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] see Figure 1-3 , the present invention provides a technical solution: a mixed friction self-lubricating rotary sealing device, including a liquid inlet pipe 1, and one end of the liquid inlet pipe 1 is provided with a first sleeve 2, and the inside of the first sleeve 2 is embedded There is a liquid level height limit plate 3, a first gasket 4 is provided on one side of the liquid level height limit plate 3, and one end of the first sleeve 2 is connect...
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The invention discloses a mixed friction type self-lubricating rotary sealing device which comprises a liquid input pipe. A first sleeve is arranged at one end of the liquid input pipe. A liquid level height limiting plate is embedded into the first sleeve. A first sealing gasket is arranged on one side of the liquid level height limiting plate. One end of the first sleeve is connected with a second sleeve through a bolt. A bearing is embedded in the inner side of the second sleeve. A liquid output pipe is embedded in the inner side of the bearing. A sealing block is arranged on one side of the liquid output pipe. A flow guide groove is formed in one side of the sealing block. A liquid outlet is formed in the lower end of the second sleeve. A sealing head is in screw connection with one end of the liquid outlet. A through hole matched with the liquid output pipe is formed in the middle position of the sealing block. The mixed friction type self-lubricating rotary sealing device is simple in structure, by means of arrangement of an internal space, the sealing block can be in a liquid soaking state all the time, a mixed friction effect is achieved in the rotating process of the sealing block, the service life of the sealing device is prolonged, and pressure in the rotating process is reduced.
Description
technical field [0001] The invention relates to the technical field of sealing joints, in particular to a mixed friction self-lubricating rotary sealing device. Background technique [0002] The seal between relatively moving parts in a machine (or equipment). Dynamic seals are divided into reciprocating dynamic seals and rotary dynamic seals. Reciprocating dynamic seals include molded packing seals, stuffing box seals and expanding ring seals. Rotary dynamic seals include: contact dynamic seals in which the moving parts are in direct contact with stationary parts; non-contact dynamic seals in which the two do not directly contact; semi-fluid dynamic seals that use the special properties of the fluid added in the sealing gap to achieve sealing. The semi-fluid dynamic seal has a magnetic fluid seal. Some machines and equipment must be absolutely sealed, and some allow a small amount of leakage. Therefore, the sealing structure should be selected or designed according to th...
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IPC IPC(8): F16J15/16
CPCF16J15/162
Inventor 朱斌林建华陈杰峰林晓平廖长洋郑华婷
Owner FUJIAN MINXUAN TECH