Hollow blade shaft-end sealing mechanism

A technology of shaft end sealing and hollow blades, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of loss of sealing performance, wear of moving and static plates, and short service life, so as to improve the sealing level, The effect of prolonging the sealing performance and securing the sealing performance

Inactive Publication Date: 2013-09-25
PENGFEI CHEM EQUIPS FACTORY JIANGDU CITY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing sealing methods include packing seal and mechanical seal. In order to increase the sealing performance, some people combine the two to form an integrated double seal. However, in this sealing structure, small solid particles such as dust are easy to be mechanically sealed. Accelerate the wear between the moving plate and the static plate in the mechanical seal, resulting in a short service life and loss of sealing performance

Method used

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  • Hollow blade shaft-end sealing mechanism

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Embodiment Construction

[0014] The present invention is sleeved on the circumferential outer surface of the main shaft 1, and includes: a bottom ring 2 and a packing seat 3 cooperating with the bottom ring 2, a number of packing seals 12 are arranged inside the packing seat 3, and the packing seals 12 are blocked by the bottom ring 2, The other end of the packing seat 3 is provided with a collection box 8;

[0015] A cooling jacket 6 is provided at the outer end of the packing seat 3 , and the packing seat 3 is provided with an air pipe 4 passing through the packing seat 3 and extending into the packing seat 3 .

[0016] A protective ring 13 is arranged between the packing seats 3 , and the air pipe 4 extends into the protective ring 13 .

[0017] The end of the collection box 8 is provided with a mechanical seal 9 .

[0018] A mirror port 7 is provided on the collecting box.

[0019] A dustproof ring 10 is provided at the end of the collection box 8 .

[0020] The shaft end sealing mechanism of t...

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Abstract

The invention relates to a hollow blade shaft-end sealing mechanism which comprises a packing seal and a mechanical seal arranged in the rear of the packing seal. A material collection box is arranged between the packing seal and the mechanical seal and communicated with the same, and a dust ring is arranged at the communicating position of the tail end of the material collection box and the mechanical seal. The material collection box is arranged between the packing seal and the mechanical seal, a traditional integral combination mode is changed to a split mode, the purpose is to separate the packing seal from the mechanical seal by the material collection box, the probability that solid granular matters such as dust enter the mechanical seal is lowered greatly by the aid of the material collection box, and accordingly sealing performance of the mechanical seal is improved, reliability of two-stage seal is improved, and sealing class is increased; meanwhile, by the aid of the material collection box, emptying time is prolonged, operation amount of workers is decreased, the workers can view material level in the material collection box through a sight glass hole, an empty valve is turned on to discharge excess materials after the material level reaches a certain height, and the hollow blade shaft-end sealing mechanism has high practicality.

Description

technical field [0001] The invention relates to a shaft end sealing mechanism, in particular to a shaft end sealing mechanism for preventing material leakage at the main shaft packing seat of a hollow paddle dryer. Background technique [0002] At present, the shaft end seal of the hollow paddle dryer includes a packing seat, a packing gland and a sealing mechanism composed of packing, and the shaft end sealing is mainly completed by the packing seal. Due to the small number of sealing channels in this sealing mechanism, there are phenomena of poor sealing and material leakage at the shaft end. [0003] The existing sealing methods include packing seal and mechanical seal. In order to increase the sealing performance, some people combine the two to form an integrated double seal. However, in this sealing structure, small solid particles such as dust are easy to be mechanically sealed. Accelerate the wear between the moving plate and the static plate in the mechanical seal, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16
Inventor 任红兵党梅
Owner PENGFEI CHEM EQUIPS FACTORY JIANGDU CITY
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