CN219795682U

CN219795682U - Impeller and rotating shaft connecting structure and water pump

Info

Publication number: CN219795682U
Application number: CN202321330185.3U
Authority: CN
Inventors: 陈金贵; 温金福; 包炎
Original assignee: Thermo Xiamen Intelligent Technology Co ltd
Current assignee: Thermo Xiamen Intelligent Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-10-03
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a connecting structure of an impeller and a rotating shaft and a water pump, which belong to the technical field of impellers, and the technical scheme is characterized in that the connecting structure comprises a rotation stopping groove which is formed in the impeller, the rotation stopping groove is vertically formed and penetrates through the impeller, and the water pump also comprises a connecting part which is arranged at one end of the rotating shaft and used for penetrating into the rotation stopping groove.

Description

Impeller and rotating shaft connecting structure and water pump

Technical Field

The utility model relates to the technical field of impellers, in particular to a connecting structure of an impeller and a rotating shaft and a water pump.

Background

The existing impeller and the rotating shaft are usually fixed in a threaded connection manner, the first way is that as shown in fig. 1, an inner tooth 11 is tapped on the rotating shaft 2, and the impeller 1 is locked on the rotating shaft 2 through a screw 10 with a gasket; in the second mode, as shown in fig. 2, an outer tooth 12 is turned on the rotating shaft 2, an inner tooth 11 is machined on the impeller 1, and the impeller 1 is locked and attached on the rotating shaft 2.

However, the current ways of screwing exist: the processing cost is high and the processing is difficult; the washer screw of the first mode can cause stainless steel structure change due to difficult processing, so that the rust prevention function is affected; in the second mode, the inner teeth are required to be processed on the impeller, and the injection mold is complex; and the structure of threaded connection makes the ceramic axle that wear resistance is more excellent, because can't process the screw thread, and can't obtain the application.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the connecting structure of the impeller and the rotating shaft and the water pump, which have the advantages that the processing of the rotating shaft is easier, the processing cost is low, in addition, the cost of the split ring is lower than that of the screw, the cost is further reduced, the rotating shaft can be made of ceramic materials, and the service life of the product is prolonged.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a connection structure of impeller and pivot, includes the stagnant rotary groove of seting up on the impeller, the vertical impeller that just runs through of stagnant rotary groove still includes the connecting portion that sets up in pivot one end and be used for penetrating stagnant rotary inslot, works as when connecting portion penetrates the stagnant rotary inslot completely, the other end protrusion of stagnant rotary groove is followed to a part of connecting portion, offered the draw-in groove on the week lateral wall of connecting portion protrusion stagnant rotary groove part, the bottom of draw-in groove flushes with the top of stagnant rotary groove, the joint has split washer in the draw-in groove, split washer's top and the top butt of draw-in groove, split washer's bottom and the top butt of stagnant rotary groove realize connecting portion and the fixed of stagnant rotary groove.

The utility model is further provided with: the cross section of the rotation stopping groove can be in a runway shape, an ellipse shape or a polygon shape.

The utility model is further provided with: the shape of the connecting part is matched with that of the rotation stopping groove, and when the connecting part completely penetrates into the rotation stopping groove, the bottom of the rotation stopping groove is abutted with the rotating shaft.

The utility model is further provided with: the split ring is made of elastic materials.

The utility model is further provided with: the notch that is used for penetrating the snap ring into the draw-in groove is offered to the one end of snap ring, the both sides of breach all are provided with joint portion, works as after the snap ring penetrates the draw-in groove, the joint portion realizes joint cooperation with the one end butt of draw-in groove.

The utility model is further provided with: guide surfaces are arranged on two sides of the notch and located on the outer sides of the clamping portions.

The utility model is further provided with: the rotating shaft is made of ceramic materials.

In addition, the utility model also provides a water pump, which comprises the connecting structure of the impeller and the rotating shaft.

In summary, the utility model has the following advantages:

1. through turning out the recess in the pivot, pack into pivot recess with split washer and fix impeller, because of simple structure makes the processing of pivot easier, processing cost is low, and split washer's cost is also lower than the screw in addition, further the cost is reduced.

2. The clamping parts at the two sides of the notch of the split retainer ring are abutted with one end of the clamping groove, so that clamping fit is realized, and the split retainer ring is not easy to fall off from the clamping groove; through seting up the guide surface for the circlip penetrates in the draw-in groove more easily.

3. The structure enables the rotating shaft made of ceramic materials to be processed, the wear resistance of the rotating shaft is more excellent, and the service life of the product is prolonged.

Drawings

FIG. 1 is a schematic illustration of a first threaded connection of an impeller to a shaft in the prior art;

FIG. 2 is a schematic illustration of a second prior art threaded connection of an impeller to a shaft;

FIG. 3 is an overall schematic of the present embodiment;

FIG. 4 is an exploded view of the present embodiment;

fig. 5 is a schematic view of the split ring in this embodiment.

Reference numerals illustrate: 1. an impeller; 2. a rotating shaft; 3. a rotation stopping groove; 4. a connection part; 5. a clamping groove; 6. a split retainer ring; 7. a notch; 8. a clamping part; 9. a guide surface; 10. a screw with a spacer; 11. an inner tooth; 12. external teeth.

Detailed Description

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

The utility model provides a connection structure of impeller and pivot, as shown in fig. 3 and 4, including the stagnant rotary groove 3 of seting up on impeller 1, the perpendicular setting of stagnant rotary groove 3 just runs through impeller 1, still including setting up in 2 one ends of pivot be used for penetrating the connecting portion 4 of stagnant rotary groove 3, the cross section of stagnant rotary groove 3 is non-circular, when making connecting portion 4 penetrate stagnant rotary groove 3, the relative rotation can not take place between connecting portion 4 and the stagnant rotary groove 3, the cross section of this embodiment stagnant rotary groove 3 is specifically the runway shape, in other embodiments can also be oval or polygon, connecting portion 4 and the shape assorted of stagnant rotary groove 3, connecting portion 4 is the tip cutting of pivot 2 forms, with pivot 2 integrated into one piece.

The rotating shaft 2 of the embodiment is made of ceramic material, so that the wear resistance of the rotating shaft 2 is more excellent, and the service life of a product is prolonged.

When connecting portion 4 penetrates completely and only changes inslot 3, the bottom of only changing inslot 3 and pivot 2 butt to the part of connecting portion 4 is followed the other end protrusion of only changing inslot 3, has seted up draw-in groove 5 on the week lateral wall of connecting portion 4 protrusion portion of only changing inslot 3, and draw-in groove 5 encircles the week lateral wall of connecting portion 4 and sets up, and the bottom of draw-in groove 5 flushes with the top of only changing inslot 3, and the joint has split washer 6 in the draw-in groove 5, and the top of split washer 6 and the top butt of draw-in groove 5, the bottom of split washer 6 and the top butt of only changing inslot 3 (also with the bottom butt of draw-in groove 5 simultaneously), makes connecting portion 4 unable follow and only changes inslot 3 and draws, realizes the fixed of connecting portion 4 and only changing inslot 3.

As shown in fig. 4 and 5, a notch 7 for penetrating the split ring 6 into the clamping groove 5 is formed in one end of the split ring 6, clamping portions 8 are arranged on two sides of the notch 7, after the split ring 6 penetrates into the clamping groove 5, the clamping portions 8 are abutted to one end of the clamping groove 5, the clamping portions 8 are similar to a reverse hook structure, one end of the clamping groove 5 is hooked, clamping fit is achieved, and the split ring 6 is not easy to fall off from the clamping groove 5.

The split ring 6 is made of elastic materials, and in this embodiment, spring steel is specifically used, so that the notch 7 of the split ring 6 can penetrate into the clamping groove 5 and can be detached by using tools such as ring pliers.

Both sides of the notch 7 and the outer sides of the clamping part 8 are provided with guide surfaces 9, and the guide surfaces 9 are arranged in an outward inclined manner, so that the notch 7 is in a horn shape, and the opening retainer ring 6 can be conveniently penetrated into the clamping groove 5.

The working process of the utility model is as follows: the connecting part 4 on the rotating shaft 2 is penetrated into the rotation stopping groove 3 on the impeller 1, the connecting part 4 protrudes from the other end of the rotation stopping groove 3, the split retaining ring 6 is penetrated into the clamping groove 5 of the connecting part 4, the upper end and the lower end of the split retaining ring are respectively abutted with the top of the clamping groove 5 and the top of the rotation stopping groove 3, and the connecting part 4 cannot move up and down, so that the impeller 1 and the rotating shaft 2 are fixed.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a connection structure of impeller and pivot which characterized in that: including setting up the anti-rotating groove (3) on impeller (1), the perpendicular impeller (1) of just running through of anti-rotating groove (3) still including setting up in connecting portion (4) in pivot (2) one end is used for penetrating anti-rotating groove (3), works as when connecting portion (4) penetrate in anti-rotating groove (3) completely, the other end protrusion of anti-rotating groove (3) is followed to a part of connecting portion (4), draw-in groove (5) have been seted up on the week lateral wall of connecting portion (4) protrusion anti-rotating groove (3) part, the bottom of draw-in groove (5) flushes with the top of anti-rotating groove (3), joint has split washer (6) in draw-in groove (5), the top of split washer (6) and the top butt of draw-in groove (5), the bottom of split washer (6) and the top butt of anti-rotating groove (3) realize connecting portion (4) and the fixed of anti-rotating groove (3).

2. The connection structure of an impeller and a rotating shaft according to claim 1, wherein: the cross section of the rotation stopping groove (3) can be in a runway shape, an ellipse shape or a polygon shape.

3. The connection structure of an impeller and a rotating shaft according to claim 2, wherein: the connecting part (4) is matched with the shape of the rotation stopping groove (3), and when the connecting part (4) completely penetrates into the rotation stopping groove (3), the bottom of the rotation stopping groove (3) is abutted with the rotating shaft (2).

4. The connection structure of an impeller and a rotating shaft according to claim 1, wherein: the split ring (6) is made of elastic materials.

5. The structure for connecting an impeller and a shaft according to claim 4, wherein: the notch (7) for penetrating the notch (6) into the clamping groove (5) is formed in one end of the split ring (6), clamping portions (8) are arranged on two sides of the notch (7), and after the split ring (6) penetrates into the clamping groove (5), the clamping portions (8) are abutted to one end of the clamping groove (5) to achieve clamping fit.

6. The structure for connecting an impeller and a shaft according to claim 5, wherein: guide surfaces (9) are arranged on two sides of the notch (7) and located on the outer sides of the clamping portions (8).

7. The connection structure of an impeller and a rotating shaft according to claim 1, wherein: the rotating shaft (2) is made of ceramic material.

8. A water pump, characterized in that: a connection structure comprising an impeller according to any one of claims 1 to 7 and a shaft.