CN217502075U

CN217502075U - Impeller structure

Info

Publication number: CN217502075U
Application number: CN202221470437.8U
Authority: CN
Inventors: 谈敏; 朱海永; 姚建堂
Original assignee: Huzhou Nanfeng Machinery Manufacturing Co ltd
Current assignee: Huzhou Nanfeng Machinery Manufacturing Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-09-27
Anticipated expiration: 2032-06-14

Abstract

The utility model provides an impeller structure, including impeller wheel hub, impeller wheel hub center department be equipped with the shaft hole, be equipped with the keyway in the shaft hole, impeller wheel hub openly evenly distributed multi-disc front shroud, impeller wheel hub back evenly distributed multi-disc back shroud is equipped with the multi-disc blade between front shroud and the back shroud, the one end that the shaft hole was kept away from to the blade all is equipped with wear-resisting arc piece. The beneficial effects of the utility model are that: the thickness of the end part of the wear-resistant arc block is increased; the thickness of the opening ring of the front cover plate is increased from 5mm to 9mm during processing, so that the deformation problem of the opening ring of the front cover plate is solved; the pump shaft and the impeller hub are fixed through the locking plate, and stability is improved.

Description

Impeller structure

Technical Field

The utility model belongs to the technical field of the pump accessory, especially, be fit for an impeller structure.

Background

The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and mainly comprises the impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like. The following problems with the pump body are associated with use: the connection part of the pump shaft and the impeller is loosened due to vibration generated during working, so that the service life of equipment is influenced; the problem of deformation easily appears in impeller front shroud choma department, influences normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an impeller structure improves the deformation problem of front shroud choma department, reduces the shrinkage cavity condition of appearing, consolidates the installation with the pump shaft, is particularly suitable for being used in the centrifugal pump.

The technical scheme of the utility model is that: the utility model provides an impeller structure, includes impeller wheel hub, impeller wheel hub center department be equipped with the shaft hole, be equipped with the keyway in the shaft hole, impeller wheel hub front evenly distributed multi-disc front shroud, impeller wheel hub back evenly distributed multi-disc back shroud, be equipped with the multi-disc blade between front shroud and the back shroud, the one end that the shaft hole was kept away from to the blade all is equipped with wear-resisting arc piece, wear-resisting arc piece is located the arc convex surface of blade, and wear-resisting arc piece and blade pass through pouring integrated into one piece, impeller wheel hub is run through from the shaft hole to the pump shaft, impeller wheel hub's shaft hole terminal surface be equipped with a plurality of screw blind holes, the pump shaft passes the hole on the locking plate, and fixes on the hole on the locking plate, fixing bolt passes mounting hole and the screw on the locking plate and establishes in the screw blind hole, the choma thickness of front shroud be 9 mm.

Preferably, the one side that blade and wear-resisting arc piece carried on the back mutually all be equipped with a plurality of water conservancy diversion strips, a plurality of water conservancy diversion strips set up the one end of keeping away from the shaft hole at the blade, a plurality of water conservancy diversion strips are parallel arrangement with the front shroud.

Preferably, the locking plate is provided integrally with the pump shaft.

Preferably, the pump shaft is provided with a key corresponding to the key groove, and the key is arranged in the key groove.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the thickness of the end part of the wear-resistant arc block is increased; the thickness of the opening ring of the front cover plate is increased from 5mm to 9mm during processing, so that the deformation problem of the opening ring of the front cover plate is solved; the pump shaft and the impeller hub are fixed through the locking plate, and stability is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the blade.

In the figure:

1. impeller hub 2, keyway 3, front shroud

4. Rear cover plate 5, blade 6 and wear-resistant arc block

7. Pump shaft 8, locking plate 9 and fixing bolt

10. Flow guide strip

Detailed Description

As shown in figures 1 and 2, the technical proposal of the utility model is an impeller structure, which comprises an impeller hub 1, the center of the impeller hub 1 is provided with a shaft hole, a key groove 2 is arranged in the shaft hole, the front of the impeller hub 1 is evenly distributed with a plurality of front cover plates 3, the back of the impeller hub 1 is evenly distributed with a plurality of back cover plates 4, a plurality of blades 5 are arranged between the front cover plates 3 and the back cover plates 4,

the end of the blade 5 far away from the shaft hole is provided with a wear-resistant arc block 6, the wear-resistant arc block 6 is positioned on the arc convex surface of the blade 5, and the wear-resistant arc block 6 and the blade 5 are integrally formed by casting, so that the thickness of the end part of the blade 5 is increased, the wear resistance is increased,

the pump shaft 7 penetrates through the impeller hub 1 from the shaft hole, the shaft hole end face of the impeller hub 1 is provided with a plurality of threaded blind holes, the pump shaft 7 penetrates through the hole in the locking plate 8 and is fixed on the hole in the locking plate 8, and the fixing bolt 9 penetrates through the mounting hole in the locking plate 8 and is arranged in the threaded blind hole in a threaded mode.

In this embodiment, blade 5 and the one side that wear-resisting arc piece 6 carried on the back mutually all be equipped with a plurality of water conservancy diversion strips 10, a plurality of water conservancy diversion strips 10 set up the one end of keeping away from the shaft hole at blade 5, a plurality of water conservancy diversion strips 10 are parallel arrangement with front shroud 3, when the clear water passes through between two water conservancy diversion strips 10, because the interval is little, can increase the velocity of flow of clear water to the lift of water pump has been increased.

In this embodiment, the lock plate 8 is integrally provided with the pump shaft 7.

In this embodiment, the pump shaft 7 is provided with a key corresponding to the key slot, and the key is arranged in the key slot.

The working process and principle of the example are as follows: the pump shaft is inserted into the shaft hole, the locking plate is arranged by being attached to the end face of the shaft hole, and the fixing bolt is fixed in the threaded blind hole to fix the pump shaft and the impeller; in the course of working, the thickness of the mouth ring of the front cover plate has original 5mm bodiness to 9mm, improve the deformation problem of the mouth ring of the front cover plate, reduce the shrinkage cavity condition to appear.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An impeller structure characterized in that: including impeller hub, impeller hub center department be equipped with the shaft hole, be equipped with the keyway in the shaft hole, impeller hub openly evenly distributed multi-disc front shroud, impeller hub back evenly distributed multi-disc back shroud is equipped with the multi-disc blade between front shroud and the back shroud, the one end that the shaft hole was kept away from to the blade all is equipped with wear-resisting arc piece, wear-resisting arc piece is located the arc convex surface of blade, and wear-resisting arc piece and blade pass through pouring integrated into one piece, the pump shaft runs through impeller hub from the shaft hole, impeller hub's shaft hole terminal surface be equipped with a plurality of screw thread blind holes, the pump shaft passes the hole on the locking plate, and fixes on the hole on the locking plate, fixing bolt passes mounting hole and the screw thread on the locking plate and establishes in the screw thread blind hole, the choma thickness of front shroud be 9 mm.

2. An impeller structure according to claim 1, wherein: the blade all be equipped with a plurality of water conservancy diversion strips with the one side that wear-resisting arc piece carried on the back mutually, a plurality of water conservancy diversion strips set up the one end of keeping away from the shaft hole at the blade, a plurality of water conservancy diversion strips are parallel arrangement with the front shroud.

3. An impeller structure according to claim 1, wherein: the locking plate and the pump shaft are integrally arranged.

4. An impeller structure according to claim 1, wherein: the pump shaft is provided with a key corresponding to the keyway, and the key is arranged in the keyway.