CN213144860U

CN213144860U - Working wheel for centrifugal pump and centrifugal pump

Info

Publication number: CN213144860U
Application number: CN202021343605.8U
Authority: CN
Inventors: 姚强
Original assignee: Kunshan Buhler Precision Parts Co ltd
Current assignee: Kunshan Buhler Precision Parts Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-05-07
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to a centrifugal pump technical field just discloses a working wheel for centrifugal pump, including impeller and pump case, the both ends of pump case are the fixed flange that is provided with all, the middle part of pump case is rotated and is provided with the bull stick, the spacing pole wall that cup joints in the bull stick of impeller, a plurality of arcs have been seted up on the surface of impeller, and are a plurality of the spout has all been seted up to the both sides of arc, and is a plurality of the inside of arc all is provided with the blade, and is a plurality of the lower extreme of blade is all fixed and is provided with the arc, and is a plurality of the both ends of arc all with the spout sliding connection that corresponds, the fixed solid fixed ring that is provided with in upper surface middle part of impeller, gu fixed ring's outside threaded connection has rotatory ring, rotatory ring's. The utility model discloses the convenience is dismantled the blade, and the convenience is maintained and is maintained the impeller.

Description

Working wheel for centrifugal pump and centrifugal pump

Technical Field

The utility model relates to a centrifugal pump technical field especially relates to a working wheel and centrifugal pump for centrifugal pump.

Background

The basic structure of the centrifugal pump is composed of six parts, namely an impeller, a pump body, a pump shaft, a bearing, a sealing ring and a packing box, wherein the impeller is a core part of the centrifugal pump, the rotating speed of the impeller is higher than the output force of the impeller, blades on the impeller play a main role, the impeller passes through a static balance experiment before assembly, and the inner surface and the outer surface of the impeller are required to be smooth so as to reduce the friction loss of water flow.

The centrifugal pump among the tradition, especially impeller part in case damage, in case comparatively troublesome during the dismantlement, is difficult to the maintenance, brings the inconvenience for the operation personnel, because impeller and blade set up as integrated into one piece, in case a certain blade damages, very big probability can cause scrapping of whole impeller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the impeller is inconvenient to be dismantled among the prior art to inconvenient maintenance and maintenance, and the running wheel and the centrifugal pump for the centrifugal pump that provide.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a working wheel for centrifugal pump, includes impeller and pump case, the both ends of pump case are all fixed and are provided with the flange, the middle part of pump case is rotated and is provided with the bull stick, the spacing cup joint in the pole wall of bull stick of impeller, a plurality of arcs have been seted up on the surface of impeller, and is a plurality of the spout has all been seted up to the both sides of arc, and is a plurality of the inside of arc all is provided with the blade, and is a plurality of the lower extreme of blade all is fixed and is provided with the arc, and is a plurality of the both ends of arc all with the spout sliding connection that corresponds, the fixed solid fixed ring that is provided with in the upper surface middle part of impeller, gu fixed ring's outside threaded connection has rotatory ring, the outside.

Preferably, the jacking mechanism comprises a jacking block and a jacking rod, a plurality of limiting grooves are formed in the upper surfaces of the impellers, the upper ends of the limiting grooves all extend to the inner side of the outer end of the corresponding arc-shaped groove, the jacking rod is arranged in the corresponding limiting groove in a sliding mode, the rear end of the jacking rod is abutted to the outer end of the corresponding arc-shaped plate, and the jacking block is fixedly arranged on the outer side wall of the corresponding rotating ring and one end of the outer side of the corresponding rotating ring is abutted to one end of the inner side of the corresponding jacking rod.

Preferably, the outer sides of the arc-shaped plates are provided with sealing gaskets.

Preferably, the two ends of the outer side of the limit grooves are fixedly provided with stop blocks.

Preferably, the impeller is made of aluminum alloy.

A centrifugal pump includes a running wheel for a centrifugal pump.

Compared with the prior art, the utility model provides a working wheel and centrifugal pump for centrifugal pump possesses following beneficial effect:

1. this a working wheel and centrifugal pump for centrifugal pump sets up a plurality of arc walls through the impeller upper surface, and the spout has all been seted up to the both sides of a plurality of arc walls, the arc of a plurality of blade lower extremes and the both sides spout sliding connection that corresponds to can realize the dismantlement to the blade, thereby conveniently maintain and maintain the impeller, avoided leading to whole impeller to scrap because of a blade damages.

2. This a working wheel and centrifugal pump for centrifugal pump promotes the ejector pin to the outside through a plurality of kicking blocks that rotatory ring lateral wall set up for the outside one end of a plurality of ejector pins offsets with the arc outside one end that corresponds, thereby the convenience carries out quick fixed and dismantlement to a plurality of blades.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the convenience is dismantled the blade, and the convenience is maintained and is maintained the impeller.

Drawings

Fig. 1 is a schematic structural diagram of a working wheel for a centrifugal pump and a centrifugal pump according to the present invention;

FIG. 2 is a schematic view of the internal structure of the impeller of FIG. 1;

fig. 3 is a perspective view of the blade of fig. 1.

In the figure: pump case 1,

flange

2, 3 bull sticks, 4 impellers, 5 arc-shaped grooves, 6 chutes, 7 blades, 8 arc-shaped plates, 9 fixed rings, 10 rotating rings, 11 ejector blocks, 12 limiting rods, 13 ejector rods, 14 stoppers and 15 sealing gaskets.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a working wheel for centrifugal pump, including impeller 4 and pump case 1, the both ends of pump case 1 are all fixed and are provided with flange 2, the middle part of pump case 1 is rotated and is provided with bull stick 3, the spacing pole wall that cup joints in bull stick 3 of impeller 4, a plurality of arcs 5 have been seted up on impeller 4's surface, spout 6 has all been seted up to the both sides of a plurality of arcs 5, the inside of a plurality of arcs 5 all is provided with blade 7, the lower extreme of a plurality of blades 7 is all fixed and is provided with arc 8, the both ends of a plurality of arcs 8 all with the 6 sliding connection of spout that correspond, the fixed solid fixed ring 9 that is provided with in upper surface middle part of impeller 4, the outside threaded connection of solid fixed ring 9 has rotatory ring 10, the outside of rotatory ring 10 is.

The tight mechanism in top includes kicking block 11 and ejector pin 13, a plurality of spacing grooves 12 have been seted up to a plurality of impeller 4's upper surface, the upper end of a plurality of spacing grooves 12 all extends to inside the outside one end of the arc wall 5 that corresponds, a plurality of ejector pins 13 all slide to set up in the inside of the spacing groove 12 that corresponds and the rear end all offsets with the outside one end of the arc wall 8 that corresponds, a plurality of kicking blocks 11 all fix set up in the lateral wall of the rotatory ring 10 that corresponds and outside one end all offsets with the inboard one end of the ejector pin 13 that corresponds.

And sealing gaskets 15 are arranged on the outer sides of the arc-shaped plates 8, so that the sealing performance between the blades 7 and the impeller 4 is enhanced.

The two ends of the outer side of the limiting grooves 12 are respectively and fixedly provided with a stop block 14, so that the ejector rods 13 are prevented from sliding out of the corresponding limiting grooves 12.

The impeller 4 is made of aluminum alloy, so that the impeller 4 is light in weight and can drive less energy.

A centrifugal pump includes a running wheel for a centrifugal pump.

The utility model discloses in, during the use, the staff rotates rotatory ring 10, rotatory ring 10 drives a plurality of kicking blocks 11 on its lateral wall and rotates, thereby make the outside height of a plurality of kicking blocks 11 descend, thereby make a plurality of ejector pins 13 can move to the inboard, move a plurality of ejector pins 13 to the inboard, even the outside one end of a plurality of arcs 8 loses spacingly, can take out a plurality of arcs 8 to the inside from corresponding spout 6 this moment, be about to a plurality of blades 7 from the inside dismantlement of impeller 4, thereby conveniently maintain and maintain impeller 4, because impeller 4 and a plurality of blades 7 are for dismantling the setting, thereby avoided leading to whole impeller 4 to scrap because of a blade 7 damages, and save cost of maintenance, when needs install impeller 4 and a plurality of blades 7 fixedly, the staff reverse operation above-mentioned step can.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The working wheel for the centrifugal pump comprises an impeller (4) and a pump shell (1), and is characterized in that flanges (2) are fixedly arranged at two ends of the pump shell (1), a rotating rod (3) is rotatably arranged in the middle of the pump shell (1), the impeller (4) is in limited sleeve connection with the rod wall of the rotating rod (3), a plurality of arc-shaped grooves (5) are formed in the surface of the impeller (4), sliding grooves (6) are formed in two sides of the arc-shaped grooves (5), blades (7) are arranged in the arc-shaped grooves (5), arc-shaped plates (8) are fixedly arranged at the lower ends of the blades (7), two ends of the arc-shaped plates (8) are slidably connected with the corresponding sliding grooves (6), a fixing ring (9) is fixedly arranged in the middle of the upper surface of the impeller (4), and a rotating ring (10) is in threaded connection with the outer side of the fixing ring (9), and a jacking mechanism for fixing the blades (7) is arranged on the outer side of the rotating ring (10).

2. The impeller for the centrifugal pump according to claim 1, wherein the tightening mechanism comprises a top block (11) and a top rod (13), a plurality of limiting grooves (12) are formed in the upper surface of the plurality of impellers (4), the upper ends of the plurality of limiting grooves (12) extend to the inside of the outer end of the corresponding arc-shaped groove (5), the plurality of top rods (13) are slidably arranged inside the corresponding limiting grooves (12), the rear ends of the top rods are abutted against the outer end of the corresponding arc-shaped plate (8), and the plurality of top blocks (11) are fixedly arranged on the outer side wall of the corresponding rotating ring (10), and the outer end of the top blocks is abutted against the inner end of the corresponding top rod (13).

3. Impeller for a centrifugal pump according to claim 1, characterized in that the outer sides of the curved plates (8) are provided with sealing gaskets (15).

4. The impeller for a centrifugal pump according to claim 2, wherein stoppers (14) are fixedly provided at both outer ends of the plurality of retaining grooves (12).

5. Impeller for centrifugal pumps according to claim 1, characterized in that the impeller (4) is made of aluminium alloy.

6. A centrifugal pump, characterized by comprising a rotor for a centrifugal pump according to any one of claims 1-5.