Octagonal closed-type bearing bracket connected with shell

Abstract

The invention relates to an octagonal closed-type bearing bracket connected with a shell and belongs to the technical field of fluid machinery and fluid engineering equipment. The shape of a bearing bracket body is composed of three different shapes, wherein the appearance of the section of the front bearing bracket body is in an octagonal shape; the appearance of the section of the middle bearing bracket body is in a circular shape to be connected with one half of the octagonal shape; and the appearance of the section of the back bearing bracket body is in a circular shape. The back part and middle part of the bearing bracket are provided with various positions and convex platforms, which need to be drilled, according to user requirements; and the suitable positions on the octagonal-shaped surface of the bracket are directly drilled. When the bearing bracket needs to be insulated or cooled and washed in a closed manner, the drilled convex platforms do not need to be arranged on the bracket, and pipeline connection and piping are very convenient; an axial space which needs to be reserved to mount a mechanical seal pressing cover or a filler seal pressing cover is saved, the axial size of the bearing bracket is shortened and the strength of a rotating shaft is effectively improved; and the mould cost, manufacturing cost and equipment management cost of equipment are reduced.

Description

technical field [0001] The invention relates to an octagonal closed bearing bracket connected with a casing, and belongs to the technical field of fluid machinery and fluid engineering equipment. Background technique [0002] At present, there are many forms of existing pump bearing brackets. Because the pump uses a mechanical seal or packing seal, in order to install the seal seat or gland, holes are often made on the bearing bracket or connecting bracket for easy assembly and disassembly. There are various ways to open the holes, and the sizes are different. Since the damage of the mechanical seal will lead to the leakage of the pump conveying medium, on the one hand, it is necessary to strengthen safety inspection and regular maintenance. On the other hand, sealless pumps, such as magnetic pumps and canned pumps, can be used. However, since sealless pumps have their own different shortcomings, sealed pumps are still used in more cases. This kind of sealed pump not only...

AI Technical Summary

Problems solved by technology

It generally has the following disadvantages: ① Since the connecting section between the bracket and the pump cover adopts a circular or other irregular shape, when it is necessary to drill holes on the bracket to achieve heat preservation, cooling or flushing, it is necessary to set a drilling boss. Sometimes, For this purpose, holes are also drilled on the flange or end face of the pump cover; ② For pumps that need to be installed with mechanical seal glands or packing seal glands, the connecting section between the bearing bracket and the pump cover must be open, otherwise the sealing device cannot be installed. This results in that when the seal is damaged or fails, the leaking medium will directly contact the outside world, which will bring hidden dangers to personal safety and environmental pollution; The axial dimension of the bearing frame is lengthened, resulting in reduced strength, increased volume, and increased cost; ④ The existing bearing brackets can often be shared for non-cooled and air-cooled forms, but often cannot be shared for water-cooled methods, so adding Increased mold manufacturing costs and equipment management costs

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