CN206487679U

CN206487679U - Impeller shaft end nut check anti-loose structure

Info

Publication number: CN206487679U
Application number: CN201621456540.1U
Authority: CN
Inventors: 曹晨阳; 张锡淼
Original assignee: Shanghai Liancheng Group Co Ltd
Current assignee: Shanghai Liancheng Group Co Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2017-09-12
Anticipated expiration: 2026-12-28

Abstract

The utility model is related to impeller shaft end nut check anti-loose structure, including impeller, impeller nut, axle, in addition to the symmetrical half-and-half type pressing plate of two block structures and screw, and the half-and-half type pressing plate is in semi-circular shape；The axle is arranged on the central axis of impeller, one end of the axle is provided with axial trough, the impeller nut is arranged on the end of axle, the half-and-half type pressing plate is arranged between the end face of impeller nut and the end face of impeller and is stuck in axial trough, the impeller nut is provided with first through hole, the half-and-half type pressing plate is provided with the second through hole, the end face of the impeller is provided with screwed hole, the first through hole, second through hole, the position of screwed hole is corresponding to be set, the screw sequentially passes through first through hole, second through hole, then it is threadedly coupled with screwed hole, impeller nut and half-and-half type pressing plate are locked on impeller by realization.The utility model simple structure, fastening anti-loosing effect is good, installation, convenient disassembly.

Description

Impeller shaft end nut check anti-loose structure

Technical field

The utility model relates generally to the technical field of cantilever centrifugal pump structure, more particularly to impeller shaft end nut check Anti-loose structure.

Background technology

By taking single absorption horizontal centrifugal pump as an example, between impeller and shaft end locking mechanism face, as shown in figure 1, impeller 1' passes through Impeller nut 2 ' locks the one end for being installed on axle 4', and packing ring 3' is provided between impeller nut 2 ' and axle 4' one end.

The open defect of this structure is：

（1）Motor is in reversion, frequent starting, and impeller nut easily loosens；

（2）The dismounting of impeller nut is carried out using box spanner, high is required to operating space, easily makes box spanner and leaf The blade interference of wheel.

Utility model content

The utility model is in view of the above-mentioned problems, provide a kind of impeller shaft end nut check anti-loose structure, and improvement shaft end is locked Structure, in the case of motor reversal, frequent starting, impeller nut will not loose or dislocation, be easily installed, dismantle.

The purpose of this utility model can be realized by following technical proposals：Impeller shaft end nut check anti-loose structure, Including impeller, impeller nut, axle, in addition to the symmetrical half-and-half type pressing plate of two block structures and screw, the half-and-half type pressing plate is in half Annular；The axle is arranged on the central axis of impeller, and one end of the axle is provided with axial trough, and the impeller nut is arranged at On the end of axle, the half-and-half type pressing plate is arranged between the end face of impeller nut and the end face of impeller, the half-and-half type pressing plate It is engaged with axial trough, the half-and-half type pressing plate is stuck in axial trough, the impeller nut is provided with first through hole, the half-and-half type pressure Plate is provided with the second through hole, and the end face of the impeller is provided with screwed hole, the first through hole, the second through hole, the position of screwed hole Corresponding setting is put, the screw sequentially passes through the first through hole of impeller nut, the second through hole of half-and-half type pressing plate, then with leaf The screwed hole threaded connection on end face is taken turns, impeller nut and half-and-half type pressing plate are locked on impeller by realization.

Further, the screw is socket cap screw.

Further, the edge on the impeller nut end face forms projection；The half-and-half type pressing plate is used for and leaf The breach being engaged with projection is formed on the end face that wheel nut end face is engaged.

Compared with prior art, the utility model has the advantage of:Simple structure, fastening anti-loosing effect is good, installs, tears open Unload conveniently.

Brief description of the drawings

Fig. 1 is the structural representation of prior art.

Fig. 2 is structural representation of the present utility model.

Marked in figure as follows：

1' impellers, 2' impeller nuts, 3' packing rings, 4' axles；

1 impeller, 2 impeller nuts, 3 socket cap screws, 4 half-and-half type pressing plates, 5 axles, 6 axial troughs, 7 projections.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, becomes apparent from those skilled in the art Ground understands how to put into practice the utility model.Although describing the utility model with reference to its preferred embodiment, these Embodiment is to illustrate, rather than limits scope of the present utility model.

As shown in Fig. 2 impeller shaft end nut check anti-loose structure, including impeller 1, impeller nut 2, axle 5, two block structures pair The half-and-half type pressing plate 4 and screw of title.

The half-and-half type pressing plate 4 is in semi-circular shape；The axle 5 is arranged on the central axis of impeller 1, and the one of the axle 5 End is provided with axial trough 6, and the impeller nut 2 is arranged on the end of axle 5, and the half-and-half type pressing plate 4 is arranged at impeller nut 2 Between the end face of end face and impeller 1, the half-and-half type pressing plate 4 is engaged with axial trough 6, and the half-and-half type pressing plate 4 is stuck in axial trough 6 In, the impeller nut 2 is provided with first through hole, and the half-and-half type pressing plate 4 is provided with the second through hole, the end face of the impeller 1 Screwed hole is provided with, the first through hole, the second through hole, the corresponding setting in position of screwed hole, the screw sequentially pass through leaf First through hole, the second through hole of half-and-half type pressing plate 4 of nut 2 are taken turns, is then threadedly coupled with the screwed hole on the end face of impeller 1, it is real Now impeller nut 2 and half-and-half type pressing plate 4 are locked on impeller 1.

The screw is socket cap screw 3.

Edge on the end face of impeller nut 2 forms projection 7；The half-and-half type pressing plate 4 be used for and impeller nut 2 The breach being engaged with projection 7 is formed on the end face that end face is engaged.The effect of projection 7 on impeller nut 2 is, gives pair Half formula pressing plate 4 one makes half-and-half type pressing plate 4 be stuck in axial trough 6 vertically in the constraint in the direction of axle 5.

Impeller pressing plate of the present utility model is half-and-half type structure, is locked using axial trough 6, half-and-half type pressing plate 4 and impeller Nut 2 is fixed on impeller 1 by socket cap screw 3, and half-and-half type pressing plate 4 and impeller nut 2 are static with respect to impeller 1. In the case of motor reversal, frequent starting, impeller pressing plate blocks axle 5, and impeller nut 2 can not be rotated, and thus be served Fastening and locking effect.During dismounting, it is only necessary to turn on socket cap screw 3, it is not necessary to very big operating space, this Sample just serves the effect of easy installation and removal.

It should be pointed out that for the utility model through absolutely proving, can also have a variety of conversion and the implementation of remodeling Scheme, it is not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment as just explanation of the present utility model, and It is not to limitation of the present utility model.In a word, protection domain of the present utility model should include those for ordinary skill Obvious conversion or replacement and remodeling for personnel, and be determined by the appended claims.

Claims

1. impeller shaft end nut check anti-loose structure, including impeller, impeller nut, axle, it is characterised in that also including two block structures Symmetrical half-and-half type pressing plate and screw, the half-and-half type pressing plate is in semi-circular shape；The axle is arranged on the central axis of impeller, One end of the axle is provided with axial trough, and the impeller nut is arranged on the end of axle, and the half-and-half type pressing plate is arranged at impeller Between the end face of nut and the end face of impeller, the half-and-half type pressing plate is engaged with axial trough, and the half-and-half type pressing plate is stuck in axial trough In, the impeller nut is provided with first through hole, and the half-and-half type pressing plate is provided with the second through hole, the end face of the impeller and set There is screwed hole, the first through hole, the second through hole, the corresponding setting in position of screwed hole, the screw sequentially pass through impeller spiral shell The first through hole of mother, the second through hole of half-and-half type pressing plate, are then threadedly coupled with the screwed hole on impeller end face, realize impeller Nut and half-and-half type pressing plate are locked on impeller.

2. impeller shaft end nut check anti-loose structure according to claim 1, it is characterised in that the screw is socket cap Soket head cap screw.

3. impeller shaft end nut check anti-loose structure according to claim 1, it is characterised in that the impeller nut end face On edge form projection；The half-and-half type pressing plate for formed on the end face that is engaged with impeller nut end face with it is raised The breach being engaged.