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Combined sealing ring for internal mixer

A combination of sealing and internal mixer technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problem of affecting the life and safety of the sealing ring, the mismatch between the thread strength of the oil injection hole connection and the pressure of the lubricating oil, and the connection of the oil injection hole The thread is easy to break and other problems, and the overall performance and safety performance are improved, the structure is simple, and the service life is improved.

Active Publication Date: 2016-02-03
HUNAN KINGBO CARBON CARBON COMPOSITES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the sealing ring of carbon / carbon composite material can solve the problem of lubrication well, there is a situation that the strength of the connection thread of the oil injection hole does not match the pressure of the lubricating oil. Under the high reaction force of the oil pressure, the oil injection Hole connection threads are easily damaged, which affects the life and safety of the entire sealing ring

Method used

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  • Combined sealing ring for internal mixer

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Experimental program
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Effect test

Embodiment 1

[0016] Depend on figure 1 It can be seen that a combined sealing ring for internal mixers includes a ring body 1 made of carbon / carbon composite material, an oil injection hole is arranged on the ring body 1, and a metal liner with a connecting thread is fixedly installed in the oil injection hole 2. The positioning block 3, the metal liner 2 and the positioning block 3 cannot be rotated relative to each other, nor can they move along the axial direction of the oil injection hole, and the metal liner 2 is close to the non-friction surface 7 side of the ring body 1; The positioning block 3 is on the side of the friction surface 6 of the ring body 1, and the positioning block 3 is made of carbon / carbon composite material.

[0017] In order to better install and fix the positioning block 3, the positioning block 3 of the present invention is fixed on the ring body 1 through the seam screw 4 or the plug with a through hole in the center, and the seam screw 4 and the plug are all m...

Embodiment 2

[0024] In order to better prevent relative rotation between the metal liner 2 and the positioning block 3, the metal liner 2 and the positioning block 3 in the present invention are connected by tenon and tenon.

[0025] For simple processing, the metal liner 2 of the present invention is provided with a square protrusion 8 , and the positioning block 3 is provided with a square groove 9 corresponding to the square protrusion 8 .

[0026] The rest are the same as embodiment 1.

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Abstract

The invention discloses a combination sealing ring for an internal mixer, which can ensure the strength of connection threads of an oil injection hole while less-oil or oil-free lubrication is realized. The combination sealing ring comprises a ring body which is made from carbon / carbon composite material, wherein the oil injection hole is formed in the ring body. The combination sealing ring is characterized in that the oil injection hole is internally provided with a metal inner container with the connection threads and a locating block, the metal inner container is arranged close to a non-rubbing surface side of the ring body, the locating block is arranged close to a rubbing surface side of the ring body, and the locating block is made from the carbon / carbon composite material. The combination sealing ring for the internal mixer, disclosed by the invention, has the advantages that the structure is simple, the manufacturing and the maintaining are convenient, the service life of the sealing ring is prolonged, and comprehensive performance and safety performance of the sealing ring are increased.

Description

technical field [0001] The invention relates to a carbon / carbon composite sealing ring, in particular to a combined sealing ring for an internal mixer. Background technique [0002] The internal mixer is an indispensable equipment in the modern rubber industry, mainly used for mastication and mixing of rubber. The rotor sealing device is generally in two forms of mechanical seal and hydraulic seal, adopts the principle of contact end face seal, and sets a pair of relatively rotating sealing rings—a plane friction pair composed of a moving ring and a static ring. The sealing ring is made of metal material. In order to improve the wear resistance of the sealing ring, hard wear-resistant alloy is often surfacing on the friction surface. During the working process, high-pressure lubricating oil will be injected into the friction surface of the two rings through the oil injection hole. To increase the wear resistance of the friction pair and prevent material leakage. [0003] F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/30F16N1/00
Inventor 廖寄乔李军石磊邰卫平王跃军龚玉良郭宏毅
Owner HUNAN KINGBO CARBON CARBON COMPOSITES CO LTD