CN219627479U

CN219627479U - Novel three-phase asynchronous motor

Info

Publication number: CN219627479U
Application number: CN202223589075.7U
Authority: CN
Inventors: 赵慧宋
Original assignee: Zhejiang Fanglei Electromechanical Co ltd
Current assignee: Zhejiang Fanglei Electromechanical Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-09-01
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a novel three-phase asynchronous motor, and belongs to the technical field of motors. The problem that the sealing performance of the existing three-phase asynchronous motor is poor is solved. The utility model provides a three-phase asynchronous motor, includes the organism, and the front end cover is installed to the organism front end, and the organism front portion has the cavity step of axial evagination, has the built-in chamber that supplies the cavity step to stretch into in the front end cover, just is located between front end cover and the organism and installs sealing mechanism outside the built-in chamber. The utility model has the advantage of good sealing performance.

Description

Novel three-phase asynchronous motor

Technical Field

The utility model belongs to the technical field of motors, relates to a three-phase asynchronous motor, and in particular relates to a novel three-phase asynchronous motor.

Background

The three-phase asynchronous motor is widely applied to the mechanical field in China. At present, the machine body and the front end cover of the motor are sealed through a simple sealing ring, but the installation of the sealing ring is simpler, vibration is easy to generate when the motor works, the sealing ring is unstable to install and fall off for a long time, the tightness is influenced, the whole service life is further influenced, and the working efficiency of the motor is influenced.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel three-phase asynchronous motor with improved sealing performance.

The aim of the utility model can be achieved by the following technical scheme: the novel three-phase asynchronous motor comprises a machine body, wherein a front end cover is arranged at the front end of the machine body, and is characterized in that a hollow step protruding outwards in the axial direction is arranged at the front part of the machine body, a built-in cavity into which the hollow step extends is arranged in the front end cover, and a sealing mechanism is arranged between the front end cover and the machine body and outside the built-in cavity;

the sealing mechanism comprises a sealing body, wherein the inner end of the sealing body is arranged in a front end cover, the outer end of the sealing body extends out of the front end cover and is in sealing contact with the end part of a machine body, sealing lips extending outwards radially and obliquely are arranged at the outer edge and the inner edge of the inner end of the sealing body, an annular groove for clamping in the two sealing lips is arranged in the front end cover, the outer diameter of the outer end part of the sealing body is larger than the outer diameter of the inner end part of the sealing body, extrusion grooves are formed in the surfaces of the inner ring and the outer ring of the outer end part of the sealing body, a flaring groove is formed in the sealing body by extending inwards from the outer end wall of the sealing body, the longitudinal section of the flaring groove is of a trapezoid structure, and a flaring part extending into the flaring groove is outwards and axially arranged on the end surface of the machine body.

In the novel three-phase asynchronous motor, the middle part of the front end cover is provided with the organic shaft hole.

In the novel three-phase asynchronous motor, the outer ring of the front end cover and the outer ring of the shell are respectively provided with a connecting seat, and the connecting seat of the front end cover and the connecting seat of the shell are locked through bolts.

Compared with the prior art, the novel three-phase asynchronous motor has the advantages of preventing the sealing body from loosening and falling off due to vibration and improving the service life of the sealing body.

Drawings

Fig. 1 is a schematic diagram of the three-phase asynchronous motor.

Fig. 2 is a schematic diagram of a cross-sectional structure of a front end cover and a part of a machine body in the novel three-phase asynchronous motor.

In the figure, 1, a machine body; 2. a front end cover; 3. a hollow step; 4. a built-in cavity; 5. a sealing body; 6. a sealing lip; 7. an extrusion groove; 8. a flared portion; 9. a machine shaft hole; 10. and a connecting seat.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 and 2, the novel three-phase asynchronous motor comprises a machine body 1, wherein a front end cover 2 is arranged at the front end of the machine body 1, a hollow step 3 protruding outwards in the axial direction is arranged at the front part of the machine body 1, a built-in cavity 4 for the hollow step 3 to extend in is arranged in the front end cover 2, and a sealing mechanism is arranged between the front end cover 2 and the machine body 1 and positioned outside the built-in cavity 4; the sealing mechanism comprises a sealing body 5, the inner end of the sealing body 5 is arranged in a front end cover 2, the outer end of the sealing body extends out of the front end cover 2 and is in sealing contact with the end part of a machine body 1, sealing lips 6 extending outwards radially and obliquely are arranged at the outer edge and the inner edge of the inner end of the sealing body 5, an annular groove for clamping the two sealing lips 6 is formed in the front end cover 2, when the front end cover 2 is manufactured, in order to form the annular groove, the front end cover 2 is formed by integrally welding two halves, the front end cover 2 is formed by two halves which are evenly divided just at the beginning, corresponding half annular grooves are formed in one half of the front end cover 2 respectively, and then the two halves are welded and spliced; the sealing mechanism is made of rubber, so that the sealing mechanism has certain deformation capacity, in addition, the front end cover 2 is provided with a sealing groove for the inner end part of the sealing body 5 to be installed, therefore, when the sealing body 5 is installed, the sealing lips 6 at the two end edges can move inwards along the groove wall of the sealing groove, the sealing lips 6 can generate certain deformation in the process, after the sealing body is installed in place, the deformation of the sealing lips 6 is reset and flicked into the annular groove, the installation stability of the sealing body 5 is ensured, the outer diameter of the outer end part of the sealing body 5 is larger than the outer diameter of the inner end part of the sealing body, one side surface of the outer end part of the sealing body 5 is tightly pressed on the surface of the front end cover 2, the inner and outer ring surfaces of the outer end part of the sealing body 5 are respectively provided with an extrusion groove 7, the longitudinal section of the sealing body 5 is provided with a flaring groove by extending inwards, the longitudinal section of the flaring groove is of a trapezoid structure, after the flaring part 8 stretches into the flaring groove, and the outer end part of the sealing body 5 is outwards expanded, so that the outer end part of the sealing body 5 is outwards expanded, the outer end part of the sealing body is enabled to form tighter axial force, and under the action of the extrusion groove 7, the sealing body is not easy to be pressed, and the sealing body can be prevented from falling down, and the sealing mechanism can be pressed down, and the sealing mechanism can be prevented from being used, and life is not used.

Preferably, the middle part of the front end cover 2 is provided with an organic shaft hole 9.

Preferably, the outer ring of the front end cover 2 and the outer ring of the machine shell are respectively provided with a connecting seat 10, and the connecting seat 10 of the front end cover 2 and the connecting seat 10 of the machine shell are locked through bolts.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the body 1, the front cover 2, the hollow step 3, the internal cavity 4, the seal body 5, the seal lip 6, the pressing groove 7, the flared portion 8, the crank hole 9, the connection seat 10, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The novel three-phase asynchronous motor comprises a machine body (1), wherein a front end cover (2) is arranged at the front end of the machine body (1), the novel three-phase asynchronous motor is characterized in that a hollow step (3) protruding outwards in the axial direction is arranged at the front part of the machine body (1), a built-in cavity (4) for the hollow step (3) to extend in is formed in the front end cover (2), and a sealing mechanism is arranged between the front end cover (2) and the machine body (1) and outside the built-in cavity (4);

the sealing mechanism comprises a sealing body (5), the inner end of the sealing body (5) is arranged in a front end cover (2), the outer end of the sealing body extends out of the front end cover (2) and is sealed against the end part of a machine body (1), sealing lips (6) extending outwards radially in an inclined mode are arranged at the outer edge and the inner edge of the inner end of the sealing body (5), annular grooves for clamping the two sealing lips (6) are formed in the front end cover (2), the outer diameter of the outer end part of the sealing body (5) is larger than the outer diameter of the inner end part of the sealing body, extrusion grooves (7) are formed in the surfaces of the inner ring and the outer ring of the outer end part of the sealing body (5), flaring grooves are formed in the inner extension of the outer end wall of the sealing body (5), the longitudinal section of each flaring groove is of a trapezoid structure, and flaring parts (8) extending into the flaring grooves are outwards and axially arranged on the end surface of the machine body (1).

2. The novel three-phase asynchronous motor according to claim 1, wherein the middle part of the front end cover (2) is provided with an organic shaft hole (9).

3. The novel three-phase asynchronous motor according to claim 1, wherein the connecting seat (10) is arranged at the outer ring of the front end cover (2) and the outer ring of the machine shell, and the connecting seat (10) of the front end cover (2) is locked with the connecting seat (10) of the machine shell through bolts.