Inner bush of pump head

A technology of inner bushing and pump head, which is applied in the field of vertical centrifugal pumps, can solve the problems affecting the water flow and lift in the pump body, and achieve the effect of small resistance

Inactive Publication Date: 2012-07-04
无锡太博泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional inner bushing is in the shape of a cover, and its inner surface is close to a plane. When the water flow through the pump body from bottom to top is sprayed onto the inner bushing, its inner surface will generate huge resistance to the water flow, which affects the flow of water in the pump body. flow and head

Method used

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  • Inner bush of pump head
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  • Inner bush of pump head

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Embodiment Construction

[0014] Such as figure 1 with figure 2 As shown, the pump head inner bushing of the present invention includes a body 3, the body 3 is in the shape of a cover, its top has a hole 5 corresponding to the outer diameter of the pump shaft, and the opening at its lower end is adapted to the upper end of the pump. The inner surface of the body is spherical.

[0015] Wherein, the inside of the body 5 is evenly distributed with four bosses 1 along the circumferential direction, the lower surface of the bosses 1 is parallel to the lower end surface of the body 3, and the lower surface of the bosses 1 is processed with a counterbore 7 for installing a rubber plug , so that in the installed state, it can be fixed with the upper end of the pump body to avoid the rotation of the pump body.

[0016] In addition, a circumferential groove 2 for installing an O-shaped rubber ring is processed on the inner surface of the opening end of the main body 3, so as to cooperate with the upper end of...

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Abstract

The invention relates to an inner bush of a pump head, which comprises a cap-shaped body. The top end of the body is provided with a hole in size corresponding to the outer diameter of a pump shaft, and an opening at the lower end of the body is matched with the upper end of a pump. The inner bush is characterized in that the inner surface of the body is a spherical surface. The inner bush of the pump head is low in resistance of water flow and cannot affect flow rate and lift of water flow in the pump, and is applicable to fixing a motor and bringing convenience to connection of an output shaft of the motor and the pump shaft.

Description

[0001] technical field [0002] The invention relates to a vertical centrifugal pump, in particular to an inner liner of a pump head used for fixing a motor and facilitating the connection between the output shaft of the motor and the pump shaft. Background technique [0003] At present, in the water pump manufacturing industry, in order to facilitate the fixing of the motor and facilitate the connection between the output shaft of the motor and the pump shaft, a pump head is arranged between the upper end of the pump body and the motor, and a pump head is provided at the lower end of the pump head to press the upper end of the pump body. inner liner. The traditional inner bushing is in the shape of a cover, and its inner surface is close to a plane. When the water flow through the pump body from bottom to top is sprayed onto the inner bushing, its inner surface will generate huge resistance to the water flow, which affects the flow of water in the pump body. flow and head....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/00
Inventor 俞杏娟
Owner 无锡太博泵业有限公司
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