CN213116831U

CN213116831U - Water pump rotor and water pump thereof

Info

Publication number: CN213116831U
Application number: CN202021478837.4U
Authority: CN
Inventors: 余锋
Original assignee: DONGGUAN HENGYUE INDUSTRIAL CO LTD
Current assignee: DONGGUAN HENGYUE INDUSTRIAL CO LTD
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-05-04
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a water pump rotor and a water pump thereof, which comprises a rotor main shaft, a shaft coupling and an impeller, wherein the shaft coupling is fixedly assembled on the rotor main shaft, the rotor main shaft realizes transmission with the impeller through the shaft coupling, and the impeller is rotatably sleeved outside the shaft coupling along the axial direction of the rotor main shaft; wherein: the shaft coupling is provided with an active shifting piece, a cavity of the impeller is internally provided with a passive shifting piece, and after the shaft coupling is driven by the rotation of the rotor spindle through a certain starting angle, the active shifting piece and the passive shifting piece are in interference transmission; the left side and the right side of the driving shifting piece along the interference direction are respectively provided with an elastic buffer part, or the left side and the right side of the driven shifting piece along the interference direction are respectively provided with an elastic buffer part. The utility model discloses simple structure and good reliability can reduce collision and wearing and tearing between shaft coupling and the impeller inner chamber through elastic buffer, plays the effect of making an uproar of falling.

Description

Water pump rotor and water pump thereof

Technical Field

The utility model relates to a water pump technical field, especially a water pump rotor and water pump thereof.

Background

Chinese utility model patent with publication number CN209638076U discloses a washing machine drain pump rotor, relating to the technical field of washing machine liquid pumps. A gap exists between the pressing sheet and the elastic block in the washing machine drainage pump rotor. Through being equipped with the space between preforming and the elastic block, guaranteed that the elastic block can not form interference fit with preforming terminal surface and impeller, thereby make the elastic block can slide in the space that the isolation muscle formed, and then the plectrum of shaft coupling experiences unobstructed zero load stroke earlier when impeller cavity internal rotation with higher speed, paste tight elastic block again and drive the elastic block and carry out the stroke of micro-load in the space that the isolation muscle formed with higher speed, when the muscle was kept apart to elastic block one end butt, just drive the plectrum through the shaft coupling, the plectrum compresses tightly the elastic block, the elastic block compresses tightly the isolation muscle, and then drive the impeller through the isolation muscle and rotate, and then avoided the moment of torsion not enough to drive impeller pivoted condition, make washing machine drain pump rotor also can drive the impeller and rotate under the low or unstable operational environment of voltage. However, the structural design is complex, the elastic block is generally damaged, the impeller cannot work, the reliability is not strong, and the noise is large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to the not enough of above-mentioned prior art, provide a water pump rotor and water pump thereof.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a water pump rotor comprises a rotor main shaft, a coupler and an impeller, wherein the coupler is fixedly assembled on the rotor main shaft, the rotor main shaft is in transmission with the impeller through the coupler, and the impeller is rotatably sleeved outside the coupler along the axial direction of the rotor main shaft; wherein: the shaft coupling is provided with an active shifting piece, a cavity of the impeller is internally provided with a passive shifting piece, and after the shaft coupling is driven by the rotation of the rotor spindle through a certain starting angle, the active shifting piece and the passive shifting piece are in interference transmission; the left side and the right side of the driving shifting piece along the interference direction are respectively provided with an elastic buffer part, or the left side and the right side of the driven shifting piece along the interference direction are respectively provided with an elastic buffer part.

In the above technical scheme, the left and right sides are respectively provided with the elastic buffer parts which are integrated.

In the technical scheme, the coupler is connected with the rotor spindle through interference fit or a pin shaft.

In the above technical scheme, the elastic buffer member is a rubber member.

In the above technical solution, the elastic buffer member is in a cylindrical shape.

In the technical scheme, lubricating liquid is arranged between the coupler and the inner cavity of the impeller.

In the above technical solution, the elastic buffer member is fixedly attached to the shaft coupling or to the inner cavity of the impeller.

In the technical scheme, the shaft coupling locks the axial position of the impeller on the rotor spindle through a limiting structure.

In the technical scheme, the limiting structure comprises an annular groove arranged along the circumferential direction of the coupler and an annular arc convex edge arranged along the circumferential direction of an inner cavity of the impeller.

In order to further solve the defects of the prior art, the water pump is also provided, and the water pump comprises the water pump rotor.

The utility model has the advantages that: the utility model discloses a water pump rotor, it includes rotor spindle, shaft coupling and impeller, and the shaft coupling is fixed to be assembled to the rotor spindle, and the rotor spindle realizes the transmission through shaft coupling and impeller, and the impeller is established outside the shaft coupling rotatably along the axial of rotor spindle; wherein: the shaft coupling is provided with an active shifting piece, a cavity of the impeller is internally provided with a passive shifting piece, and after the shaft coupling is driven by the rotation of the rotor spindle through a certain starting angle, the active shifting piece and the passive shifting piece are in interference transmission; the left side and the right side of the driving shifting piece along the interference direction are respectively provided with an elastic buffer part, or the left side and the right side of the driven shifting piece along the interference direction are respectively provided with an elastic buffer part. The elastic buffer piece can reduce the collision and abrasion between the coupler and the inner cavity of the impeller, and the noise reduction effect is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2-3 are schematic views of the exploded structure of the present invention at different viewing angles.

In the figure, 1, a rotor spindle; 2. a coupling; 3. an impeller; 4. an active poking sheet; 5. a passive plectrum; 6. an elastic buffer member; 7. an annular groove; 8. an annular arc convex edge; 9. an inner cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, a water pump rotor comprises a rotor spindle 1, a coupler 2 and an impeller 3, wherein the coupler 2 is fixedly assembled on the rotor spindle 1, the rotor spindle 1 realizes transmission with the impeller 3 through the coupler 2, and the impeller 3 is rotatably sleeved outside the coupler 2 along the axial direction of the rotor spindle 1; wherein: the shaft coupling 2 is provided with an active shifting piece 4, a cavity of the impeller 3 is internally provided with a passive shifting piece 5, and after the shaft coupling 2 is driven by the rotation of the rotor spindle 1 to pass through a certain starting angle, the active shifting piece 4 and the passive shifting piece 5 are in interference transmission; the left and right sides of the driving pulling piece 4 along the interference direction are respectively provided with an elastic buffer 6, or the left and right sides of the driven pulling piece 5 along the interference direction are respectively provided with an elastic buffer 6. The elastic buffer 6 can reduce the collision and abrasion between the coupler 2 and the inner cavity 9 of the impeller 3, and the noise reduction effect is achieved.

Specifically, the elastic buffer members 6 are integrated with the elastic buffer members 6 respectively disposed on the left and right sides. The elastic buffer 6 is a rubber member. The elastic buffer 6 is cylindrical in shape. By extension, the elastic buffer 6 can be fixed in position by gluing or the like on the coupling 2 or in the inner cavity 9 of the impeller 3. Lubricating liquid is arranged between the coupler 2 and the inner cavity 9 of the impeller 3, and the elastic buffer part 6 can be fixed by the adsorption force of the lubricating liquid. And an annular cavity for accommodating the elastic buffer 6 is formed between the coupler 2 and the inner cavity 9 of the impeller 3, and the annular cavity is also an active space of the active poking sheet 4 before the passive poking sheets 5 interfere with each other.

Specifically, the coupler 2 is connected with the rotor spindle 1 through interference fit or a pin shaft. The coupling 2 locks the axial position of the impeller 3 on the rotor spindle 1 through a limiting structure, and the reliability of the assembling structures of the impeller and the rotor spindle is enhanced. The limiting structure comprises an annular groove 7 circumferentially arranged along the shaft coupler 2 and an annular arc convex edge 8 circumferentially arranged along an inner cavity 9 of the impeller 3. The groove width of the annular groove 7 is larger than the width of the annular arc convex edge 8, so that the annular arc convex edge 8 has an axial moving space in the annular groove 7, the impeller 3 is prevented from being clamped and fixed, and the resistance of the rotation of the impeller 3 is caused. The circular arc edge of the circular arc convex edge 8 is beneficial to the assembly with the circular groove 7.

A water pump (not shown) of this embodiment includes a water pump rotor as described above and other related structural accessories, which are not described herein again.

The above embodiments are merely illustrative and not restrictive, and all equivalent changes and modifications made by the methods described in the claims are intended to be included within the scope of the present invention.

Claims

1. A water pump rotor comprises a rotor main shaft, a coupler and an impeller, wherein the coupler is fixedly assembled on the rotor main shaft, the rotor main shaft is in transmission with the impeller through the coupler, and the impeller is rotatably sleeved outside the coupler along the axial direction of the rotor main shaft; the method is characterized in that: the shaft coupling is provided with an active shifting piece, a cavity of the impeller is internally provided with a passive shifting piece, and after the shaft coupling is driven by the rotation of the rotor spindle through a certain starting angle, the active shifting piece and the passive shifting piece are in interference transmission; the left side and the right side of the driving shifting piece along the interference direction are respectively provided with an elastic buffer part, or the left side and the right side of the driven shifting piece along the interference direction are respectively provided with an elastic buffer part.

2. A water pump rotor as claimed in claim 1, wherein: the left side and the right side are respectively provided with the elastic buffer parts which are integrated.

3. A water pump rotor as claimed in claim 1, wherein: the coupler is connected with the rotor spindle through interference fit or a pin shaft.

4. A water pump rotor as claimed in claim 1, wherein: the elastic buffer part is a rubber part.

5. A water pump rotor as claimed in claim 1, wherein: the elastic buffer member is cylindrical.

6. A water pump rotor as claimed in claim 1, wherein: and lubricating liquid is arranged between the coupler and the inner cavity of the impeller.

7. A water pump rotor as claimed in claim 1, wherein: the elastic buffer piece is fixedly adhered to the coupler or the inner cavity of the impeller.

8. A water pump rotor as claimed in claim 1, wherein: the shaft coupling locks the axial position of the impeller on the rotor spindle through a limiting structure.

9. A water pump rotor as claimed in claim 8, wherein: the limiting structure comprises an annular groove arranged along the circumferential direction of the coupler and an annular arc convex edge arranged along the circumferential direction of an inner cavity of the impeller.

10. A water pump, characterized by: a water pump rotor comprising a rotor as claimed in any one of claims 1 to 9.