CN-224229236-U - Sealing structure of pulverizer

CN224229236UCN 224229236 UCN224229236 UCN 224229236UCN-224229236-U

Abstract

The utility model relates to the technical field of crushers, in particular to a crusher sealing structure which comprises an impeller shaft, wherein a bearing is sleeved on one side of the outer wall of the impeller shaft, a shaft sleeve is arranged on one side of the bearing, the shaft sleeve is fixedly sleeved on the outer wall of the impeller shaft, a mechanical seal is sleeved on the outer wall of the shaft sleeve, a transition disc is fixedly sleeved on the outer wall of the mechanical seal, one end of the transition disc is clamped on an adjusting ring, and a first air inlet channel is formed in one side of the outer wall of the transition disc. According to the utility model, the mechanical seal is connected with the transition disc and then matched with the adjusting ring for sealing, and the first air inlet channel is arranged on the filtering disc, so that pressure air can be introduced through the first air inlet channel in the using process, and air with certain pressure is introduced from the outside to the inside, thereby avoiding the influence of internal air on the bearing along the gap, improving the protection effect, prolonging the service life of the bearing, and enabling the traditional pulverizer to be suitable for the crushing working condition with pressure.

Inventors

TANG YONG
LI LONG
YUE CHAO
ZHANG ZONGYOU

Assignees

四川美丰化工股份有限公司
四川美丰化工科技有限责任公司
绵阳和泽化工有限公司

Dates

Publication Date: 20260512
Application Date: 20250625

Claims (3)

1. The crusher seal structure comprises an impeller shaft (1) and is characterized in that a bearing (6) is sleeved on one side of the outer wall of the impeller shaft (1); One side of bearing (6) is provided with axle sleeve (3), the fixed suit of axle sleeve (3) is in the outer wall of impeller shaft (1), the outer wall cover of axle sleeve (3) is equipped with mechanical seal (5), the fixed cover of outer wall of mechanical seal (5) is equipped with transition dish (4), the one end joint of transition dish (4) is in adjusting ring (2), first inlet channel (8) have been seted up to outer wall one side of transition dish (4).
2. A shredder seal structure according to claim 1, wherein the mechanical seal (5) comprises a fixed part and a rotating part, the rotating part is fixedly sleeved with the outer wall of the shaft sleeve (3), and the fixed part is fixedly connected with the inner wall of the transition disc (4).
3. A shredder seal structure according to claim 2, wherein the outer wall of the transition plate (4) is provided with a second air inlet channel (7), and the second air inlet channel (7) extends to the connection part of the fixed part and the rotating part of the mechanical seal (5).

Description

Sealing structure of pulverizer Technical Field The utility model relates to the technical field of crushers, in particular to a sealing structure of a crusher. Background Along with the development of economy and the development of society, the continuous improvement of production efficiency has become necessary and social consensus, various powder equipment belongs to non-general mechanical equipment, and is applied to specific working conditions, and the equipment has a simple general structure and is easy to use. Along with the increasing of people to production life condition, also put forward new requirement to operational environment, the abominable operational environment of powder product production in-process received people's high importance, how control the raise dust in the production process, protection production workman's personal safety has put in the position that stands out more and more. The pulverizer is an indispensable mechanical device in the production process of powder products. The pulverizer pulverizes the material entering the pulverizer through the impeller rotating at a high speed, so that the product with the required granularity is obtained, the sealing performance of the impeller cavity and the impeller shaft are directly related to the advantages and disadvantages of the working environment. In short, the sealing performance is good, the dust in the environment is less, the working environment is good, the sealing performance is poor, the dust in the environment is more, and the working environment is poor; The traditional pulverizer impeller cavity adopts simple labyrinth seal more, and under the condition of bearing pressure, the dust can get into along the gap and cause the influence to the bearing to influence life, make equipment unable to satisfy long-period operation's requirement. Therefore, we propose a shredder seal structure. Disclosure of utility model The utility model aims to provide a crusher sealing structure, which solves the problems in the background technology. In order to achieve the aim, the utility model provides a crusher sealing structure, which comprises an impeller shaft, wherein one side of the outer wall of the impeller shaft is sleeved with a bearing; One side of the bearing is provided with a shaft sleeve, the shaft sleeve is fixedly sleeved on the outer wall of the impeller shaft, the outer wall of the shaft sleeve is sleeved with a mechanical seal, the outer wall of the mechanical seal is fixedly sleeved with a transition disc, one end of the transition disc is clamped with an adjusting ring, and one side of the outer wall of the transition disc is provided with a first air inlet channel. Through adopting above-mentioned technical scheme, seal one side of bearing through mechanical seal cooperation transition dish at first, at sealed in-process that uses, insert the air supply pipe through first inlet channel, from outside to inboard the gas of letting in certain pressure, thereby avoid inside gas to get into along the gap and cause the influence to the bearing, thereby make gas blow along the gap to inboard, thereby be favorable to avoiding the dust to get into along the gap, thereby be favorable to avoiding the dust to cause the influence to the bearing, the effect of protecting the bearing has been played, the life of bearing has been prolonged. As a preferred embodiment of the utility model, the mechanical seal comprises a fixed part and a rotating part, wherein the rotating part is fixedly sleeved with the outer wall of the shaft sleeve, and the fixed part is fixedly connected with the inner wall of the transition disc. By adopting the technical scheme, the shaft sleeve is ensured not to be influenced along with the rotation of the impeller shaft. As a preferred embodiment of the present utility model, the outer wall of the transition disc is provided with a second air inlet channel, and the second air inlet channel extends to the connection position of the fixed part and the rotating part of the mechanical seal. Through adopting above-mentioned technical scheme, can be with gaseous leading-in to mechanical seal department through the second inlet channel to can utilize leading-in gaseous cooling to mechanical seal's rotation part and fixed part department, thereby play the effect of protection mechanical seal, be favorable to avoiding the heat to pile up the condition that causes the influence to mechanical seal life. Compared with the prior art, the utility model has the following beneficial effects: According to the sealing structure of the pulverizer, the pulverizer is connected with the transition disc through the mechanical seal and then is matched with the adjusting ring for sealing, and the first air inlet channel is formed in the filtering disc, so that pressure air can be introduced through the first air inlet channel in the using process, air with certain pressure is introduced from the outside to the inside, the influence o