CN207728601U - A kind of water pump vane coning sleeve - Google Patents

Abstract

A kind of water pump vane coning sleeve, including：The output end of pump motor, the pump motor is sequentially connected by shaft coupling and the mandrel for driving impeller to rotate, and the mandrel is connect by coning sleeve with impeller center bellmouth, and the taper of the impeller bellmouth is identical as coning sleeve；The coning sleeve includes：The cone of crack between impeller and mandrel is filled in, and is fixed on the round platform of circular annular form at cone large diameter end, the outer surface of the round platform is equipped with dismounting screw thread, and the round platform, dismounting screw thread and cone mill out a perforative gap at same axis.Advantageous effect is：By the taper nested structure that stub end is flute profile being modified to the structure of thread shape, may be implemented more comprehensively smoothly to disassemble coning sleeve from mandrel and impeller.

Description

A kind of water pump vane coning sleeve

Technical field

The utility model is related to water pump field, specially a kind of water pump vane coning sleeve.

Background technology

Water pump is the machinery for conveying liquid or liquid being made to be pressurized.Current water pump is rotated using motor, is then driven Impeller rotates, and then drives the purpose realized and fluid is shifted.For the impeller of Multi-stage transmission, typically impeller is installed to On mandrel, the output end of motor is then utilized to drive rotation of the shaft coupling with moving mandrel, uses coning sleeve impeller in current The connection type being installed on mandrel has found documents, application number：201320873165.0 Authorization Notice No.：CN 203614464U, patent name are：" a kind of electric submersible pump impeller fastening tapered sleeve ".

Be directed to the coning sleeve used in currently available technology, in Fig. 1,2,3, installation process in order to impeller 6 It is installed in the first coning sleeve 4, generally can all use and tap impeller 6 or could be realized using press machine, not only installation needs The equipment wanted is big, and step is also cumbersome, and finally also handy locking nut 5 is tightened, and just completes assembling.This tapered sleeve structure is being torn open Also very troublesome when unloading, since the first coning sleeve 4 is all using the metal of casting, itself is frangible；Moreover, because the first cone The miner diameter end fixed thread of degree set 4, the wall thickness of itself is with regard to little；If impeller is taken at screw thread by tapping when dismounting Get off, be very easy to the fastening thread 41 on the first coning sleeve 4 to strike to be broken, on the contrary, comparing if tapping usage time On long impeller 6, it can also be easy an impeller 6 and strike to be broken.So the structure that impeller 6 is fixed on mandrel 3 is being torn in this fixation open Frangible damage is very easy to when unloading.

For patent name is：In the documents of " a kind of electric submersible pump impeller fastening tapered sleeve ", this structure passes through cone Degree is directly fixed impeller 6 and mandrel 3, facilitates installation, but needs to be punched in clearance groove using tool when a little dismountings Two sides, then realize fixed interval (FI) slot coning sleeve exited between mandrel 3 and impeller 6.But this structure has two A defect：1, when being washed open between clearance groove and impeller 6 using tool, for entire clearance groove, actual loading The only part of clearance groove, in addition the structure that coning sleeve is inherently cast, in some cases, have coning sleeve part by Power is excessive, and the clearance groove on coning sleeve can be damaged；2, in Fig. 4, since the outer ring of certain impellers 6 in currently available technology carries Circular boss 61 is not easy to dismantle if having used the coning sleeve with clearance groove that can make in this case, because The opening of slot is in horizontal position, and boss 61 just encloses entire clearance groove, it has not been convenient to be dismantled.

In order to improve more stable and not destroy under the principle of impeller, mandrel, coning sleeve, the utility model proposes one The new technical solution of kind, to solve the above problems.

Utility model content

It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of water pump vane coning sleeve Problem.

To achieve the above object, the utility model provides the following technical solutions：A kind of water pump vane coning sleeve, including：Water The output end of pump motor, the pump motor is sequentially connected by shaft coupling and the mandrel for driving impeller to rotate, the core Axis is connect by coning sleeve with impeller center bellmouth, and the taper of the impeller bellmouth is identical as coning sleeve；The coning sleeve Including：The cone of crack between impeller and mandrel is filled in, and is fixed on the round platform of circular annular form at cone large diameter end, it is described The outer surface of round platform is equipped with dismounting screw thread, and the round platform, dismounting screw thread and cone mill out one at same axis and run through Gap.

One embodiment according to the present utility model：The taper of the cone is 1:30 or 1:50.

One embodiment according to the present utility model：The width in the gap is 2 millimeters.

Compared with prior art, the utility model has the beneficial effects that：By the taper nested structure that stub end is flute profile It is modified to the structure of thread shape, may be implemented more comprehensively smoothly to disassemble coning sleeve from mandrel and impeller.

Description of the drawings

Fig. 1 is the structural schematic diagram that the first coning sleeve dismantles after locking nut in the prior art；

Fig. 2 is the structural schematic diagram after the first coning sleeve installation locking nut in the prior art；

Fig. 3 is locking nut, mandrel and the first coning sleeve scheme of installation in the prior art；

Fig. 4 is the impeller that outer ring carries boss in the prior art；

Fig. 5 is coning sleeve scheme of installation in the application；

Fig. 6 is that coning sleeve is mounted on the schematic diagram on mandrel in the application；

Fig. 7 is coning sleeve structural schematic diagram in the application；

Fig. 8 is bellmouth diagrammatic cross-section at a kind of impeller center in the application；

Fig. 9 is to dismantle nut structure diagram in the application.

In figure：1 pump motor, 2 supporting racks, 3 mandrels, 4 first coning sleeves, 41 fastening threads, 42 first cones, 5 lockings Nut, 6 impellers, 61 boss, 62 bellmouths, 7 coning sleeves, 71 round platforms, 711 dismounting screw threads, 72 cones, 8 dismounting nuts.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Shown in Fig. 5,6,7,8,9, a kind of water pump vane coning sleeve, including：Pump motor 1, the output of the pump motor 1 End is sequentially connected by shaft coupling and the mandrel 3 for driving impeller 6 to rotate, and the mandrel 3 passes through in coning sleeve 7 and impeller 6 Heart bellmouth 62 connects, and the taper of the bellmouth 62 is identical as coning sleeve 7；It is filled in by squeezing or tapping a coning sleeve 7 At 6 center of mandrel 3 and impeller, because also there is size identical with 7 taper of coning sleeve at 6 center inner wall of impeller, coning sleeve 7 is filled in After entering, it can ensure that coning sleeve 7 is completely tightly attached on the inner wall of 6 centre bore of 3 outer wall of mandrel and impeller, be realized using taper Mandrel 3, coning sleeve 7 and impeller 6 are connected；And the coning sleeve 7 includes：Fill in the cone of crack between impeller 6 and mandrel 3 72, and it is fixed on the round platform 71 of circular annular form at 72 large diameter end of cone, the outer surface of the round platform 71 is equipped with dismounting spiral shell Line 711, the round platform 71, dismounting screw thread 711 and cone 72 mill out a perforative gap 73 at same axis.Again cone Body 72 is filled between impeller 6 and mandrel 3 during crack, because bore is gradually smaller, the gap 73 The size of distance can be automatically adjusted.Further, the taper of the cone 72 is 1:30 or 1:50.Further, the gap 73 width is 2 millimeters.In installation process, impeller 6 is first determined the position on mandrel 3, then by mandrel 3 Outside taps or coning sleeve 7 is slowly pressed into crack between impeller 6 and mandrel 3 using hydraulic device, after installing, stream Body can enter from the supporting rack 2 being fixed on from 1 end of pump motor, then by the work of impeller 6, obtain the height of needs Or apart from lift.When needing impeller 6 to be dismantled from mandrel 3, it is only necessary to be communicated with about one and inner wall carries energy Enough and dismounting 711 screw-thread fit of screw thread dismounting nut 8, is screwed on dismounting screw thread 711 with this nut, by constantly twisting Tightly, the surrounding of dismounting nut 8 will be detached with mandrel 3 comprehensively, uniformly impeller 6, and then realized and torn open in a manner of more stable Unload impeller 6 and coning sleeve 7.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of water pump vane coning sleeve, including：Pump motor (1), the output end of the pump motor (1) by shaft coupling with Mandrel (3) for driving impeller (6) to rotate is sequentially connected, it is characterised in that：The mandrel (3) passes through coning sleeve (7) and leaf (6) tapered centre hole (62) connection is taken turns, the taper of impeller (6) bellmouth (62) is identical as coning sleeve (7)；The coning sleeve (7) include：The cone (72) of crack between impeller (6) and mandrel (3) is filled in, and is fixed at cone (72) large diameter end and justifies The outer surface of the cricoid round platform of shape (71), the round platform (71) is equipped with dismounting screw thread (711), the round platform (71), dismounting spiral shell Line (711) and cone (72) mill out a perforative gap (73) at same axis.

2. a kind of water pump vane coning sleeve according to claim 1, it is characterised in that：The taper of the cone (72) is 1: 30 or 1:50.

3. a kind of water pump vane coning sleeve according to claim 1 or 2, it is characterised in that：The width of the gap (73) It is 2 millimeters.