Sealing structure of rotating shaft of powder feeder

A technology of sealing structure and rotating shaft, applied in the direction of engine sealing, mechanical equipment, conveyor objects, etc., can solve the problem of poor sealing effect of the rotating shaft of the powder feeder, achieve compact structure, strengthen the sealing effect, reduce wear effect

Active Publication Date: 2012-08-22
SHENYANG MECHANICAL DESIGN RES INST CHINA LIGHT IND GENERAL COUNCIL
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Problems solved by technology

[0003] The invention designs a sealing structure for the rotating shaft of the powder feeder, which solves the problem of poor sealing effect of the rotating shaft of the powder feeder in the prior art

Method used

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  • Sealing structure of rotating shaft of powder feeder
  • Sealing structure of rotating shaft of powder feeder
  • Sealing structure of rotating shaft of powder feeder

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be further described:

[0029] figure 1 Shown is a sealing structure for the rotating shaft of a powder feeder, including a support seat 3, an O-shaped gasket 4, a spacer sleeve 5 and a V-shaped gasket 6, the left end of the support seat 3 is connected to the flange of the motor 1, and the right end is connected to the assembly The powder tank 9 with powder material 8, the rotating shaft 7 driven by the motor 1 axially passes through the support base 3 to the powder tank 9, the bearing 2 is installed in the left end chamber 34 of the support base 3, and is located in the middle chamber of the support base 3 The rotating shaft 7 in 35 is provided with an O-shaped gasket 4 between its left end and the bearing 2, and its right end is provided with a V-shaped gasket 6. The V-shaped opening of the V-shaped gasket 6 faces the right-hand chamber 36, and the O-shaped seal A spacer sleeve 5 is arranged b...

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Abstract

The invention relates to a sealing structure of a rotating shaft of a powder feeder, which comprises a supporting seat (3) and a plurality of seal gaskets. The left end of the supporting seat (3) is connected with a motor flange, the right end of the supporting seat (3) is connected with a powder cylinder (9), the rotating shaft (7) of the motor axially penetrates through the supporting seat (3) to the powder cylinder (9), a bearing (2) is mounted in a left-end cavity (34) of the supporting seat (3), and the seal gaskets are mounted on the rotating shaft (7) to seal the left end and the right end of a middle cavity (35). The sealing structure is characterized in that an air inlet and a discharge outlet (33) are arranged on the supporting seat (3), and a local high-pressure area is formed by compressed air entering the supporting seat (3) from the air inlet and then has a function of preventing powder entering while discharging a small quantity of powder from the discharge outlet (33). The sealing structure is an integration of mechanical seal and pneumatic seal, is simple and compact and has excellent sealing effect.

Description

technical field [0001] The invention belongs to the technical field of powder feeders in industries such as chemical industry and pharmacy, and in particular relates to a sealing structure for a rotating shaft of a powder feeder. Background technique [0002] Compared with other materials such as pellets, powder has the characteristics of small particle size and good filling, which brings great difficulties to the sealing of the rotating shaft of the powder feeder. At present, in the fields of domestic chemical industry and medicine, the sealing of the rotating shaft of the powder feeder mostly adopts the mechanical sealing method of the gasket, and most of the sealing effects are not good. Contents of the invention [0003] The invention designs a sealing structure for the rotating shaft of the powder feeder, which solves the problem of poor sealing effect of the rotating shaft of the powder feeding machine in the prior art. [0004] In order to solve the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/40F16J15/16F16J15/54B65G39/09
Inventor 刘卓范卫东赵洪霞覃事永宋明周
Owner SHENYANG MECHANICAL DESIGN RES INST CHINA LIGHT IND GENERAL COUNCIL
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