CN213176169U - Water pump impeller locking structure - Google Patents

Abstract

The utility model provides a water pump impeller locking structure belongs to water pump impeller subassembly technical field. It has solved the current tip at the axle set up two nuts side by side and has realized locking and prevent not hard up the difficult problem of adjusting of degree of locking that exists between second nut and the first nut. This water pump impeller locking structure, including the pump body, end cover, impeller and stator mutually support to install and lie in the end cover in the tip of pump body motor shaft, and the impeller realizes fixing through the lock nut of motor shaft tip, and the top that lies in lock nut on the motor shaft has seted up the draw-in groove and has been fixed with the snap ring in the draw-in groove, still is provided with the elastic rubber circle between snap ring and the lock nut. The utility model discloses a replace the tradition with snap ring cooperation elastic rubber circle and set up the locking structure of two nuts side by side, this technical scheme has the simple installation more convenient more of structure to the higher advantage of snap ring rigidity product uniformity.

Description

Water pump impeller locking structure

Technical Field

The utility model belongs to the technical field of water pump impeller subassembly, a immersible pump is related to, in particular to water pump impeller locking structure.

Background

The submersible pump is a water lifting machine with a motor and a water pump directly connected into a whole to be submerged into water for working, and has the advantages of simple structure, high unit efficiency, low noise, safe and reliable operation and convenient installation and maintenance. The impeller is the core part in the water pump and is the only acting part in the pump body, and impeller and motor shaft's fixed usually sets up two nuts side by side at the tip of axle in the water pump at present and realizes locking and prevent to become flexible, but this kind of structure has the problem that mutual location is inaccurate between the nut, and the locking degree between second nut and the first nut is difficult for adjusting promptly.

Disclosure of Invention

The utility model aims at providing a to the above-mentioned problem that exists among the prior art, provide one kind and lock the structure to being used for fixed nut locking installation more convenient water pump impeller.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a water pump impeller locking structure, includes the pump body, end cover, impeller and stator mutually support and install in the tip of pump body motor shaft is located the end cover, its characterized in that, the impeller realize fixedly through the lock nut of motor shaft tip, the motor shaft on be located lock nut's top and seted up the draw-in groove and at the draw-in groove internal fixation have the snap ring, snap ring and lock nut between still be provided with the elastic rubber circle.

The principle of the water pump impeller locking structure is as follows: the impeller overlaps earlier and locates its below on the motor shaft and supports through the axle sleeve, and the top compresses tightly through lock nut, and in order to prevent that lock nut is not hard up, the utility model discloses increase snap ring cooperation elastic rubber circle above lock nut, compress tightly elastic rubber circle and lock nut up end through the snap ring, can prevent effectively that lock nut is not hard up.

In the water pump impeller locking structure, a flat gasket is arranged between the contact surfaces of the locking nut and the impeller.

In the water pump impeller locking structure, the center of the guide vane is provided with an upward convex spherical structure, and the end part of the motor shaft, the locking nut, the clamping ring and the elastic rubber ring are all positioned in the spherical structure.

Compared with the prior art, this water pump impeller locking structure is through replacing the locking structure that the tradition set up two nuts side by side with snap ring cooperation elastic rubber circle, and this technical scheme has that the structure is simple more the installation more convenient to the higher advantage of snap ring position fixing product uniformity.

Drawings

FIG. 1 is a cross-sectional view of the present water pump;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

in the figure, 1, a pump body; 1a, a motor shaft; 2. an end cap; 3. an impeller; 4. a guide vane; 5. locking the nut; 6. a card slot; 7. a snap ring; 8. an elastic rubber ring; 9. flattening the cushion; 10. and (4) a spherical structure.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the water pump impeller locking structure comprises a pump body 1, an end cover 2, an impeller 3 and a guide vane 4, wherein the impeller 3 and the guide vane 4 are mutually matched and installed in the end part of a motor shaft 1a of the pump body 1, the impeller 3 is fixed through a locking nut 5 at the end part of the motor shaft 1a, a clamping groove 6 is formed in the upper part of the locking nut 5 on the motor shaft 1a, a clamping ring 7 is fixed in the clamping groove 6, and an elastic rubber ring 8 is further arranged between the clamping ring 7 and the locking nut 5.

Further explaining, a flat gasket 9 is arranged between the contact surfaces of the locking nut 5 and the impeller 3, and the flat gasket 9 plays a role in preliminary looseness prevention.

The center of stator 4 has the bellied spherical structure 10 that makes progress, and motor shaft 1 a's tip, lock nut 5, snap ring 7 and elastic rubber circle 8 all are located this spherical structure 10, and this design can provide the space and shelter from the messenger pleasing to the eye degree higher to the end for locking structure.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although various terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (3)

1. The utility model provides a water pump impeller locking structure, includes the pump body (1), end cover (2), impeller (3) and stator (4) mutually support and install in the tip of the pump body (1) motor shaft (1 a) be located end cover (2), its characterized in that, impeller (3) realize fixedly through lock nut (5) of motor shaft (1 a) tip, motor shaft (1 a) on lie in the top of lock nut (5) and seted up draw-in groove (6) and at draw-in groove (6) internal fixation have snap ring (7), snap ring (7) and lock nut (5) between still be provided with elastic rubber circle (8).

2. A water pump impeller locking structure according to claim 1, characterized in that a flat gasket (9) is arranged between the contact surfaces of the locking nut (5) and the impeller (3).

3. A water pump impeller locking structure according to claim 1, characterized in that the guide vane (4) has an upwardly convex spherical structure (10) in the center, and the end of the motor shaft (1 a), the locking nut (5), the snap ring (7) and the elastic rubber ring (8) are all located in the spherical structure (10).

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