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Blade anti-loosening gasket structure

A technology of anti-loosening gaskets and blades, which is applied to components of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc., can solve problems such as loose blades, achieve reliable connection, and ensure reliable operation , to avoid the effect of loose leaves

Inactive Publication Date: 2011-10-19
HITACHI PUMP MFG WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, when the blades of the semi-adjustable water pump are connected with the rotor body by bolts, due to the use of ordinary flat washers, the pump unit is prone to loose blades during operation.

Method used

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  • Blade anti-loosening gasket structure
  • Blade anti-loosening gasket structure
  • Blade anti-loosening gasket structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] See figure 1 , figure 2 and image 3 , the semi-regulating blade 1 is installed on the rotor body 3 through the bolt 2, the washer 4 is installed between the bolt 2 and the rotor body 3, the outer circumference of the head of the bolt 2 has a gap 5, and the gasket 4 is embedded in the position corresponding to the bolt gap 5 Enter notch 5. The rotor body 3 is provided with a slot 6 along the installation axis of the semi-adjusting blade 1 , and the gasket is provided with a protrusion 7 , and the protrusion 7 of the gasket 4 snaps into the slot, and the gasket 4 snaps into the slot 6 .

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PUM

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Abstract

The invention discloses a blade anti-loosening gasket structure which can effectively prevent the blade loosening phenomenon as a bolt and a gasket can not be pressed reliably during the running process of a blade and a rotor body. The semi-adjusting blade is installed in a rotor body through the bolt, and the gasket is arranged between the bolt and the rotor body. The blade anti-loosening gasket structure is characterized in that a gap is arranged at the periphery of the head of the bolt, and the gasket corresponding to the gap of the bolt is embedded into the gap.

Description

technical field [0001] The invention relates to the technical field of the connection structure between the vane and the rotor body of a semi-adjustable water pump, in particular to the vane anti-loosening washer structure. Background technique [0002] Generally, when the blades of the semi-adjustable water pump are connected with the rotor body by bolts, due to the use of ordinary flat washers, the blades of the water pump unit are prone to loosening during operation. Contents of the invention [0003] In view of the above problems, the present invention provides a blade anti-loosening washer structure, which can effectively prevent the blade from loosening due to the unreliable compression of the bolt and the washer during the operation of the blade and the rotor body. [0004] The technical solution is as follows: the semi-regulating blades are installed on the rotor body through bolts, and a washer is installed between the bolts and the rotor body. The gasket at the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/00
Inventor 姚秀芬
Owner HITACHI PUMP MFG WUXI