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Impeller locking device for lime stone pump

A technology for locking devices and impellers, which is applied to parts, pumps, and pump components of elastic fluid pumping devices, and can solve problems affecting the service life of lime pumps, loose locking bolts, and wear of impellers, and achieve fixed Good effect, increase resistance, avoid wear and tear

Inactive Publication Date: 2017-11-21
XIANGYANG XINJINKAI PUMP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the locking bolts of the impeller locking device of the lime pump in the prior art are loosened when the impeller is reversed, causing wear of the impeller and affecting the service life of the lime pump, the present invention provides a simple structure, strong practicability, which can effectively prevent the impeller from Loose impeller locking device for locking bolts during reverse rotation

Method used

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  • Impeller locking device for lime stone pump
  • Impeller locking device for lime stone pump
  • Impeller locking device for lime stone pump

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Embodiment Construction

[0017] The technical scheme of the impeller locking device of the lime pump provided by the present invention will be further described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention and implement it.

[0018] see figure 1 , figure 2 and image 3 , the impeller locking device of the lime pump provided by the present invention includes a pump shaft 1, the pump shaft 1 is a stepped shaft, the impeller 3 is sleeved on the pump shaft 1, the outer side of the pump shaft 1 and the inner side of the shaft hole of the impeller 3 are radially Correspondingly provided with a keyway, the impeller 3 and the pump shaft 1 are radially fixed through the connecting key 2, and the locking bolt 4 can pass through the impeller 3 and be threaded with the pump shaft 1 to realize the axial fixation of the impeller 3 and the pump shaft 1.

[0019] The impeller locking device of the lime pump provided by the present...

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Abstract

The invention provides an impeller locking device of a lime pump, which includes a pump shaft, an impeller sleeved on the pump shaft, and a locking bolt, as well as a tapered locking piece and an outer wire nut. The pump shaft and the impeller pass through The connection key realizes the radial fixation, the conical locking part and the impeller realizes the radial fixation through the locating pin, the axial fixation between the pump shaft and the impeller realizes through the locking bolt which passes through the impeller and is threadedly connected with the pump shaft, The external thread nut can realize the secondary locking of the impeller and the axle. The impeller locking device of the lime pump provided by the invention has simple structure and strong practicability, can effectively prevent the locking bolts from loosening when the impeller reverses, prolongs the service life of the lime pump, and reduces equipment maintenance costs.

Description

technical field [0001] The invention relates to a lime pump, in particular to an impeller locking device of the lime pump, which belongs to the technical field of chemical equipment. Background technique [0002] During the use of the lime pump, after the motor stops, the impeller of the lime pump will be reversed due to the backflow of the medium; at the same time, when the lime pump is used to recoil the pipeline, the impeller will also be reversed. The reverse rotation of the impeller will easily lead to the loosening of the locking bolts fixing the impeller, especially when the pressure in the pipeline is high, it is easy to cause the locking bolts to fall off. After the impeller loses the fixation of the locking bolt, it falls to the inlet pump cover of the lime pump, which causes friction with the pump cover, causing the impeller to wear; the connecting key also falls to the lower end of the pump shaft. The force of the connection key will expand the position of the k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/20F04D29/08
CPCF04D29/20F04D29/086
Inventor 李翔
Owner XIANGYANG XINJINKAI PUMP CO LTD
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