CN201810585U

CN201810585U - Novel impeller capable of reducing axial force

Info

Publication number: CN201810585U
Application number: CN2010205297793U
Authority: CN
Inventors: 薛璟; 薛继长; 程茂胜; 李圣宁
Original assignee: ANHUI LINE ELECTRIC PUMP Co Ltd
Current assignee: ANHUI LINE ELECTRIC PUMP Co Ltd
Priority date: 2010-09-15
Filing date: 2010-09-15
Publication date: 2011-04-27
Anticipated expiration: 2020-09-15

Abstract

The utility model discloses a novel impeller capable of reducing axial force. The novel impeller comprises an impeller body, a front cover plate and a back cover plate, wherein the horizontal position of the working surface of a front blade of the impeller body is provided with the front cover plate; the back side of the impeller body is provided with a layer of back cover plate; and the peripheral surface of a revolving shaft arranged in the middle of the impeller body is provided with a plurality of balancing holes. The novel impeller has the advantages that: the novel impeller contributes to analyzing axial force of the impeller, solves the problem of unbalanced axial force by changing the stressed areas of the front and back cover plates of the impeller, enhances the through capacity of the impeller and expands the application range of a pump; the outlet position of the impeller has a half-open structure, so that winding objects and materials can be cut.

Description

A kind of novel impeller that reduces axial force

Technical field

The utility model relates to the single stage single suction volute pump technology, relates in particular to a kind of novel impeller that reduces axial force.

Background technique

Existing single stage single suction volute pump is acting on axial force and this power and will promote rotor axial and move in operation process on the rotor.This advocates will be asymmetric by the forward and backward cover plate of impeller and the axial force that produces and point to the impeller eye direction.Conventional method is to beat equalizing orifice or adopt the method for back blades to come balancing axial thrust on blade, as shown in Figure 2, then remains axial force and is born by bearing; In addition, traditional half-opened impeller, just simple cancellation front shroud of impeller or back shroud, but effect is unsatisfactory.

The model utility content

At above defective, the purpose of this utility model provides the novel impeller that a kind ofly strengthens the impeller passing capacity, can solve the reduced axial force axial force imbalance problem, that help expanding Applicable scope, to solve many deficiencies of prior art.

For achieving the above object, the utility model is achieved through the following technical solutions:

A kind of novel impeller that reduces axial force comprises impeller body, front shroud, back shroud, and described impeller body anterior leaflet working surface horizontal position is provided with front shroud, and the impeller body rear side is provided with one deck back shroud; Described impeller body middle part rotating shaft circumferential surface is offered some equalizing orifices.

The beneficial effect that reduces the novel impeller of axial force described in the utility model is: help the analysis by axial force of impeller, adopt the variation of impeller front and rear cover plate lifting surface area to solve the axial force imbalance problem, the impeller passing capacity strengthens, and has expanded the using scope of pump; The semi-open type structure is adopted at the impeller outlet position, can cut twister and material.

Description of drawings

According to embodiment and accompanying drawing the utility model is described in further detail below.

Fig. 1 is the described structural representation that reduces the novel impeller of axial force of the utility model embodiment;

Fig. 2 is the partial structurtes schematic representation of existing impeller.

Among the figure:

1, impeller body; 2, front shroud; 3, back shroud; 4, equalizing orifice; 5, rotating shaft.

Embodiment

Shown in Fig. 1-2, the novel impeller that reduces axial force described in the utility model, comprise impeller body 1, front shroud 2, back shroud 3, described impeller body 1 adopts the semi-open type structure, its middle part rotating shaft 5 circumferential surface are offered some equalizing orifices 4, its anterior leaflet working surface horizontal position is provided with front shroud 2, and 2 of the front shrouds at position remove beyond this working surface, executes unnecessary axial force thereby reduce front shroud 2 to back shroud 3; Described impeller body 1 rear side is provided with one deck back shroud 3, these back shroud 3 ends and blade tip maintain an equal level, therefore, act on the axial force on the impeller cover, obtain balance significantly, adopt the variation of impeller front and rear cover plate lifting surface area to solve the axial force imbalance problem, the impeller passing capacity strengthens, and has expanded the using scope of pump; The semi-open type structure is adopted at the impeller outlet position, can cut twister and material.

Claims

1. the novel impeller that can reduce axial force comprises impeller body, front shroud, back shroud, it is characterized in that: described impeller body anterior leaflet working surface horizontal position is provided with front shroud, and the impeller body rear side is provided with one deck back shroud.

2. the novel impeller that reduces axial force according to claim 1 is characterized in that: described impeller body middle part rotating shaft circumferential surface is offered some equalizing orifices.