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Adjusting method for sealing level of magnetic end face seal and special device thereof

A technology of end face sealing and adjustment method, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of unadjustable sealing level, and achieve the effects of low cost, wide application range, and convenient adjustment and operation.

Inactive Publication Date: 2012-12-19
程笃笃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problem that the sealing level of the magnetic end face seal device in the prior art cannot be adjusted during use, the purpose of the present invention is to provide a method for adjusting the sealing level of the magnetic end face seal that can be adjusted as required

Method used

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  • Adjusting method for sealing level of magnetic end face seal and special device thereof
  • Adjusting method for sealing level of magnetic end face seal and special device thereof
  • Adjusting method for sealing level of magnetic end face seal and special device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0074] Embodiment 1, the present invention provides a magnetic end face sealing device, which mainly includes a carbon graphite ring 2, a moving ring 3, a rotating shaft 5, a housing 6, a mounting seat 8, a static ring 9, an adjusting ring 10, and the matching surfaces The mounting seat 8 adopts a cylindrical structure with protruding rings on both sides inside and outside. The mounting seat 8 is fixedly installed on the housing 6. The moving ring 3 and the rotating shaft 5 compress the moving ring auxiliary O-ring 4 into a fixed position. Cooperate with the rotating shaft 5 to rotate, and the static ring 9 fitted in the mounting seat 8 is arranged coaxially with the rotating shaft 5 and contacts with the end surface of the moving ring 3 to form a friction pair; the contact surface of the moving ring 3 and the static ring 9 is provided with carbon Graphite ring 2, carbon graphite ring 2 is embedded in the moving ring body made of magnetically permeable material, the static ring...

Embodiment 2

[0090] Embodiment 2, another embodiment of the present invention is: the mounting seat 81 can also adopt a cylindrical straight-through mounting seat 81 with a convex ring and an axial extension on the outside, and a pin hole and a clip are provided at the outer end of the straight-through mounting seat 81 ring groove, and cooperate with the sleeve snap ring 12 in the snap ring groove; set the adjustment ring 10 on the rotating shaft 5, the outside of the adjustment ring 10 is matched with the inside of the snap ring 12 of the mounting seat 81, and the inner side of the adjustment ring 10 is matched with the installation The outer end surface of the seat 81 is matched, the inner end of the mounting seat 81 is matched with the outer end surface of the static ring 9, a groove is arranged on the outer periphery of the adjustment ring 10, and the stop pin 11 is fitted in the pin hole, and the inner end of the stop pin 11 is inserted into the adjustment In the outer peripheral groov...

Embodiment 3

[0094] Embodiment 3, the present invention can also set more than one boss at the position corresponding to the outer peripheral groove of the adjustment ring 10 at the outer end of the static ring 9 , and the bosses on the static ring 9 fit into the outer peripheral groove of the adjustment ring 10 . refer to Figures 1 to 27 , all the other are with above-mentioned embodiment 1 or 2.

[0095] Through the adjustment ring 10 outer diameter is provided with the groove that determines to install the strong, middle and weak corner positions and cooperates with the center symmetrical multi-groove positioning device of the static ring 9 end face bosses, the center symmetry multi-slot formed by the stop groove and the synchronous end face bosses. The slot positioning device can select the angular position, and at the same time prevent the strong and weak changes of the magnetic force from being affected by the angular misalignment caused by vibration.

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Abstract

The invention relates to an adjusting method for a sealing level of a magnetic end face seal and a special device thereof. The adjusting method and the special device are mainly used for solving the technical problems of the present magnetic end face sealing device that the limitation to the application range and the leakage possibility are high. According to the technical scheme, the special device is applied to an end face sealing device which is composed of a moveable ring (3), a fixed ring (9) and an O-shaped ring; a mounting base (8) is arranged on a shell (6), so that the end face sealing for a rotating shaft (5) is realized by the end face sealing device; the end face sealing device is characterized in that: an adjusting ring (10) which is made of a permanent magnetic material is sleeved on the rotating shaft (5); and the magnetic force strength of a friction pair of the fixed ring (9) and the moveable ring (3) is changed by adjusting a magnetic pole angle difference between the adjusting ring (10) and the fixed ring (9), so as to adjust the sealing level of the magnetic end face sealing device. The end face sealing device breaks through the limitation to the application range of a magnetic sealing device, has a simple structure and convenience in use as well as excellent sealing effect, and is mainly applied to the shaft end face sealing for a transmission box, a high-speed gearbox, and the like.

Description

technical field [0001] The invention relates to a dynamic sealing device of a mechanical transmission part, in particular to a magnetic sealing device for a shaft end face. Background technique [0002] The sealing device for the shaft end face is a component installed in the transmission case and high-speed gearbox to prevent the leakage of the working medium and the intrusion of external dust and foreign matter. There are two kinds of sealing methods: ordinary spring-loaded end-face seal device and magnetic end-face seal device; ordinary spring-loaded end-face seal requires special transmission parts to make the moving ring and shaft rotate synchronously; magnetic force end-face seal can cancel special transmission parts and rely on The friction force of the secondary sealing ring acts as a transmission. Compared with the ordinary elastic-loaded end-face seal, the main advantages of the magnetic force end-face seal are fewer structural elements, compactness, and convenient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34
CPCF16J15/3444
Inventor 程笃笃
Owner 程笃笃
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