Compensable rocker arm sealing device

A sealing device and compensation technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of no compensation for the sealing direction of the sealing strip, expansion and aging of the sealing strip and the sealing frame, so as to improve the sealing effect and reduce the Effects of friction loss and service life improvement

Pending Publication Date: 2019-04-26
TANGSHAN CERAMIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used sealing structure is to stick the sealing strip around the sealing frame, but due to the manufacturing and installation errors of this structure, it is easy to cause a certain gap between the sealing strip and the sealing frame, which cannot be completely sealed; and the sealing strip has no compensation in the sealing direction. Therefore, after a period of use, due to wear and wind erosion, the gap between the sealing strip and the sealing frame will expand, the air leakage will increase, and the energy consumption of the system will increase; in addition, the sealing strip used for this kind of sealing is general industrial rubber The board will age quickly in a high temperature working environment above 200°C, the service life is very short, and the maintenance cost of the equipment will increase

Method used

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  • Compensable rocker arm sealing device
  • Compensable rocker arm sealing device
  • Compensable rocker arm sealing device

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Embodiment 1

[0049] Embodiment 1 of the present invention discloses a compensable rocker arm sealing device, which is installed on the middle casing 20, and a rocker arm 21 and a grinding roller 22 are installed inside, and the rocker arm 21 is driven by the rocker arm shaft (not shown), including Grinding roller door 1, sealing seat 2, sealing frame 3, sealing air bag 4 and pressure plate 5;

[0050] The center of the grinding roller door 1 is provided with a cavity structure, the grinding roller door 1 is connected to the middle shell 20, and one side of the grinding roller door 1 protrudes outward from the ring-shaped sealing seat 2;

[0051] The sealing seat 2 is arranged concentrically with the cavity;

[0052] The sealing frame 3 is inserted into the cavity structure, and is in contact with the grinding roller door 1, and the sealing frame 3 is inserted with a rocker arm 21 and a grinding roller 22;

[0053] A sealing air bag 4 is installed between the roller door 1, the sealing sea...

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Abstract

The invention discloses a compensable rocker arm sealing device which enables the joint of a rocker arm and a grinding roller to be sealed and can prevent air outside a vertical roller mill from entering the mill and affecting the internal and external pressure difference of the mill in the using process of the vertical roller mill. According to the sealing structure, a grinding roller door, a sealing base, a sealing frame, a sealing air bag and a pressing plate are matched with one another to achieve the sealing effect, the sealing air bag has elasticity, the whole structure has the compensation effect, and therefore it is guaranteed that the rocker arm can still achieve sealing in the continuous rotating process, and the sealing effect of the whole device can be improved.

Description

technical field [0001] The invention relates to the technical field of grinding equipment in mining, electric power, building materials and cement industries, and more specifically relates to a compensable rocker arm sealing device. Background technique [0002] For vertical roller mills that can pull out the grinding rollers, the rocker arm sealing structure is an important part of it, which can avoid air leakage from the device and prevent the air outside the mill from entering the mill during the use of the vertical roller mill to affect the internal and external pressure of the mill. difference, so that the performance parameter of the vertical mill - differential pressure is a fixed value. [0003] At present, the commonly used sealing structure is to stick the sealing strip around the sealing frame, but due to the manufacturing and installation errors of this structure, it is easy to cause a certain gap between the sealing strip and the sealing frame, which cannot be c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/40
CPCF16J15/40
Inventor 莫妮徐大卫黄武印杨义润张宝东李晓红唐卫斌刘刚卢迪王志华鄂刚李冬辉
Owner TANGSHAN CERAMIC
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