CN218678579U

CN218678579U - Sealed rotor

Info

Publication number: CN218678579U
Application number: CN202223178335.1U
Authority: CN
Inventors: 董孝宗; 夏丽萍; 段长礼; 王磊; 李晓冬; 王翔
Original assignee: Shimge Pump Industry Group Co Ltd
Current assignee: Shimge Pump Industry Group Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-21
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a sealed rotor relates to the technical field of water pump, include the pivot and install the core in the pivot, the pivot on fixedly connected with end cover, the end cover setting be in the both sides of core and with pivot fixed connection, the core on the cover be equipped with sealed sleeve, sealed sleeve's both ends form sealed cavity with two end cover fixed connection respectively for hold the core. This application has the longer advantage of rotor life.

Description

Sealed rotor

Technical Field

The application relates to the technical field of water pumps, in particular to a sealing rotor.

Background

Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal.

The water pump generally comprises a motor, and when the existing part of the motor is cooled by adopting a water cooling mode, the rotor is soaked in water, so that the core body of the rotor is easily corroded, and the service life of the rotor is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, it is an object of the present application to provide a sealed rotor having the advantage of a longer useful life of the rotor.

The above object of the present application is achieved by the following technical solutions:

the utility model provides a sealed rotor, includes the pivot and installs the epaxial core in the pivot, the pivot on fixedly connected with end cover, the end cover setting be in the core both sides and with pivot fixed connection, the core on the cover be equipped with sealed sleeve, sealed sleeve's both ends respectively with two end cover fixed connection formation sealed cavity for hold the core.

By adopting the technical scheme, in use, the end covers are positioned on two sides of the core body and connected with the sealing sleeve to form the sealing cavity, and the core body is positioned in the sealing cavity, so that the probability of water contacting with the core body can be effectively reduced in the water cooling process, the probability of corrosion of the core body can be reduced, and the service life of the rotor is prolonged.

The present application may be further configured in a preferred example to: the inner diameter of the sealing sleeve is smaller than the outer diameter of the core body.

Through adopting above-mentioned technical scheme, sealing sleeve and core form the tight fit promptly, consequently better to the protection effect of core.

The present application may be further configured in a preferred example to: the end cover is provided with a connecting hole for the rotating shaft to penetrate out, and the aperture of the connecting hole is smaller than the diameter of the rotating shaft at the connecting part of the end cover and the rotating shaft.

Through adopting above-mentioned technical scheme, end cover and pivot junction are in the tight fit state promptly, consequently can effectively reduce the probability that liquid enters into to the sealing sleeve from this department.

The present application may be further configured in a preferred example to: at least a portion of the end cap is positioned within the sealing sleeve.

Through adopting above-mentioned technical scheme, when using promptly, end cover and sealing sleeve have the contact surface, consequently make sealed effect better.

The present application may be further configured in a preferred example to: one part of the end cover is positioned in the sealing sleeve, one part of the end cover is positioned outside the sealing sleeve, and the diameter of the end cover is larger than the inner diameter of the sealing sleeve.

Through adopting above-mentioned technical scheme, in use promptly, end cover and sealing sleeve form the tight fit, and then further promote sealed effect.

The present application may be further configured in a preferred example to: the surface of the end cover facing the core body is contacted with the core body.

By adopting the technical scheme, the heat dissipation device is more beneficial to heat dissipation in use.

The present application may be further configured in a preferred example to: the end cover and the sealing sleeve are fixedly connected through welding, and the end cover and the rotating shaft are connected through welding.

Through adopting above-mentioned technical scheme, through the welding mode for end cover and pivot, sealing sleeve are connected, thereby can play good sealed effect.

Drawings

Fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a schematic view of the structure of the rotating shaft and the core body of the present application.

Fig. 3 is a schematic cross-sectional structure of the present application.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3.

Reference numerals: 1. a rotating shaft; 2. a core body; 3. a sealing sleeve; 4. an end cap; 41. and connecting the holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1 to 4, a sealed rotor disclosed in the present application includes a rotating shaft 1 and a core 2 mounted on the rotating shaft 1, and in the present embodiment, the core 2 is a copper rotor. The end cover 4 is fixedly connected to the rotating shaft 1, one end, facing the core body 2, of the end cover 4 is in contact with the core body 2, and the diameter of the end cover 4 is equal to that of the core body 2. The end cover 4 is provided with a connecting hole 41 for the rotating shaft 1 to pass through, the aperture of the connecting hole 41 is smaller than the diameter of the rotating shaft 1 at the joint of the end cover 4 and the rotating shaft 1, namely, the end cover 4 is in interference fit with the rotating shaft 1, the end cover 4 and the rotating shaft 1 are fixedly connected in a welding mode, and in the embodiment, the connecting hole is connected in a laser welding mode.

Still the cover is equipped with sealing sleeve 3 on the core 2, and sealing sleeve 3's internal diameter is less than the diameter of core 2, and the end cover 4 that is located core 2 both ends respectively has a part to be located sealing sleeve 3, because sealing sleeve 3's internal diameter is less than the diameter of core 2, consequently sealing sleeve 3 and core 2, the equal interference fit of end cover 4. The sealing sleeve 3 and the end cap 4 are joined by welding, in this embodiment by laser welding, so that the sealing sleeve 3 and the end cap 4 form a sealed chamber for accommodating the core body 2.

The implementation principle of the embodiment is as follows: in the production process, through the design of sealing sleeve 3 and end cover 4, end cover 4 and sealing sleeve 3 form the sealed cavity that is used for holding core 2, and then make in use, can effectively cool off the corruption of water to core 2, prolong the life of rotor.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sealed rotor, characterized by: including pivot (1) and install core (2) in pivot (1), pivot (1) on fixedly connected with end cover (4), end cover (4) set up the both sides of core (2) and with pivot (1) fixed connection, core (2) on the cover be equipped with sealing sleeve (3), sealing sleeve (3) both ends respectively with two end cover (4) fixed connection formation seal chamber for hold core (2).

2. A sealed rotor according to claim 1, wherein: the inner diameter of the sealing sleeve (3) is smaller than the outer diameter of the core body (2).

3. A sealed rotor according to claim 1, wherein: the end cover (4) is provided with a connecting hole (41) for the rotating shaft (1) to penetrate out, and the aperture of the connecting hole (41) is smaller than the diameter of the rotating shaft (1) at the joint of the end cover (4) and the rotating shaft (1).

4. A sealed rotor according to any one of claims 1-3, characterised in that: at least one part of the end cover (4) is positioned in the sealing sleeve (3).

5. A sealed rotor according to claim 4, wherein: one part of the end cover (4) is positioned in the sealing sleeve (3), the other part of the end cover is positioned outside the sealing sleeve (3), and the diameter of the end cover (4) is larger than the inner diameter of the sealing sleeve (3).

6. A sealed rotor according to claim 1, wherein: one surface of the end cover (4) facing the core body (2) is contacted with the core body (2).

7. A sealed rotor according to claim 1, wherein: the end cover (4) is fixedly connected with the sealing sleeve (3) through welding, and the end cover (4) is connected with the rotating shaft (1) through welding.