Sealing structure used between shaft and shaft barrel

Abstract

The invention provides a sealing structure used between a shaft and a shaft barrel. The sealing structure comprises the shaft and the shaft barrel, wherein the shaft is arranged in the shaft barrel in a penetrating mode and is coaxial with the shaft barrel; a sealing component is arranged at an end opening of the shaft barrel; the sealing component comprises a column type flange and packing; the column type flange is made of nylon materials or Teflon materials; the column type flange comprises a column body part and a flange part which are integrally arranged; the column body part is of a cylinder structure with a through hole; the column body part is arranged between the shaft and the shaft barrel in a sleeving mode and is in interference fit with the shaft and the shaft barrel; the packing is embedded in the column body part and located at the position between the column body part and the shaft; the flange part is of a flange plate structure; the shaft is sleeved with the flange part; the flange part is fixedly connected to the end opening of the shaft barrel; and the flange part is in interference fit with the shaft. A column type flange sealing shaft and the shaft barrel of a special structure are arranged between the shaft and the shaft barrel, so that sealing between the shaft and the shaft barrel is achieved, the coaxiality between the shaft and the shaft barrel is guaranteed, and the duty ratio of the sealing structure is reduced while the structural strength is met.

Description

technical field [0001] The invention relates to a bearing sealing technology of a screw conveyor, in particular to a sealing structure used between a shaft and a shaft cylinder. Background technique [0002] The screw conveyor is mainly composed of a shaft cylinder, a main shaft with a screw, and a bearing stabilizer. In actual use, the main shaft of the screw conveyor should be set coaxially with the shaft tube, and the shaft and the shaft tube should be sealed and connected by packing, bearings, flanges, etc., but due to various factors such as shaft processing and assembly , After the screw conveyor is used for a period of time, the sealing effect between the shaft and the shaft cylinder will become worse and worse. The main reason affecting the sealing is the coaxial problem, and the other is the setting of the sealing structure. In the prior art, bearings, gaskets and flanges are often used to seal and connect the shaft and the shaft cylinder. This structure has poor s...

AI Technical Summary

Problems solved by technology

In actual use, the main shaft of the screw conveyor should be set coaxially with the shaft tube, and the shaft and the shaft tube should be sealed and connected by packing, bearings, flanges, etc., but due to various factors such as shaft processing and assembly , after the screw conveyor is used for a period of time, the sealing effect between the shaft and the shaft cylinder will become worse and worse. The main reason affecting the sealing is the coaxial problem, and the other is the setting of the sealing structure

In the prior art, bearings, gaskets and flanges are often used to seal the shaft and the shaft cylinder. This structure has poor sealing effect and short service life.

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