A self-cooling canned pump and its production equipment and production method

By designing self-cooling structures and production equipment in the shielding pump, the shielding pump's temperature is too high, processing difficulty is high and burr problems are solved, and more efficient cooling and processing efficiency is achieved.

CN118979899BActive Publication Date: 2025-03-25ZHEJIANG NANYUAN PUMP IND CO LTD
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Patent Information

Application Number
CN202411463497.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-03-25
Estimated Expiration
2044-10-21

AI Technical Summary

Technical Problem

The existing shielded pumps lack effective heat dissipation structure when used, resulting in excessive temperature; at the same time, the pump shaft processing is difficult and the external circulation pump requires additional cooling circuits, which increases cost and space occupation; during the processing process, the component positioning and tool setting process are complex, which affects efficiency, and burrs are prone to occur after processing.

Method used

A self-cooling shielding pump is designed, adopting a combined structure of water pump and shielding motor. By setting a flow channel between the pump shaft and the motor housing as a cooling circuit, it uses liquid circulation to cool. At the same time, a production equipment and processing method are provided, and the positioning and fixing of the front bearing sleeve is quickly completed through the mold and positioning structure, reducing the tool setting process, and automatically removing burrs through the grinding plate.

Benefits of technology

It effectively reduces the temperature of the shielding pump and extends its service life; simplifies the processing process of the pump shaft, reduces cost and space occupation; improves the processing efficiency of the front bearing sleeve and reduces process complexity.

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Abstract

The present invention belongs to the technical field of fluid conveying equipment, and in particular to a self-cooling shielded pump and its production equipment and its production method. In view of the existing problem that it is impossible to actively dissipate heat, the tool needs to be aligned when processing sleeve-like components, and the burrs of the processed components cannot be automatically removed, the following scheme is proposed, including a water pump and a shielded motor; the water pump is provided with a pump shaft and an impeller spacer, and a flow channel is provided between the impeller spacer installed on the pump shaft and the pump shaft as a part of the cooling circuit; the shielded motor is provided with a flange and an end cover, and a motor housing, and a through annular groove is provided on the flange for flow, and a through annular groove is provided on the end cover for flow. In the present invention, during the operation of the shielded pump, the liquid can circulate in the pump, and the shielded pump can be cooled from the inside and the outside at the same time; in addition, when processing the front bearing sleeve, the positioning and fixing of the front bearing sleeve can be quickly completed, which greatly improves the processing efficiency.
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