A sealing structure of cooling water pipe for rotary kiln supporting wheel bearing group

Abstract

The invention relates to an improved rotary kiln riding wheel bearing set cooling water pipe sealing structure which is simple in structure, good in sealing effect and low in production cost. The rotary kiln riding wheel bearing set cooling water pipe sealing structure comprises a spherical surface tile, a bearing upper cover is arranged outside the spherical surface tile which is provided with a pipe connector, and an opening is formed in the bearing upper cover corresponding to the pipe connector. The rotary kiln riding wheel bearing set cooling water pipe sealing structure is characterized in that a supporting pipe concentric with the pipe connector is fixedly arranged on the outer side of the opening in the bearing upper cover, an annular pressing cover is arranged on the end face of the supporting pipe through a bolt, an annular sealing pad is arranged between the pressing cover and the supporting pipe, and an inner hole of the sealing pad is in interference fit with the pipe connector.

Description

technical field [0001] The invention relates to the improvement of the sealing structure of the cooling water pipe of the supporting wheel bearing group of the rotary kiln. Background technique [0002] The supporting roller bearing group is the main supporting part of the rotary kiln. Since the kiln is a thermal heavy-duty equipment, the supporting roller bearing group supporting the kiln body needs cooling water to continuously cool the working bearing bush. The spherical bush will automatically adjust the supporting roller in a small amount during the operation of the equipment. The center of rotation of the bearing group requires a flexible sealing structure between the cooling water pipe and the upper cover of the bearing to prevent rainwater, sundries and dripping water from entering the supporting wheel bearing group and causing accidents. The sealing effect can still be guaranteed after the error occurs. But currently sealed structures such as image 3 As shown, the...

AI Technical Summary

Problems solved by technology

But currently sealed structures such as image 3 As shown, there are the following disadvantages: 1. The seal cannot achieve the sealing effect when it is installed and adjusted

The original seal 11 is mostly made of bowl-shaped rubber. Because the bearing upper cover 2 is a welded or cast structure, the sealing end surface is mostly cylindrical or complicated. It is difficult to adjust the bowl-shaped rubber seal 11 to seal the entire curved surface during installation.

[0003] 2. The seal 11 needs a special mold to make, and the making is complicated

Because the connection thread between the pipe joint 6 and the spherical shoe 1 is mostly a sealing pipe thread, the screwing length of the sealing pipe thread is basically fixed, and there is an unavoidable deviation in the manufacture of the bearing upper cover 2, resulting in that when the pipe joint 6 is tightened, it is impossible to Accurately compress the seal 11 to produce a suitable amount of deformation to achieve the sealing effect

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