CN218216839U

CN218216839U - Traction motor stator

Info

Publication number: CN218216839U
Application number: CN202221999034.2U
Authority: CN
Inventors: 张荣敏; 张宸纲
Original assignee: Taizhou Fuya Electric Machinery Co ltd
Current assignee: Taizhou Fuya Electric Machinery Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-01-03
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a traction motor stator, which comprises a shell and a base, wherein a stator winding is arranged inside the shell, a stator core is arranged inside the stator winding, a connecting seat is arranged at the upper end of the shell, and the connecting seat and the base are fixedly connected through a bolt component; further comprising: a fixing plate installed inside the case and positioned at an upper end of the stator winding; the movable plate is movably arranged in the cavity, and the cavity is arranged in the fixed plate. This traction motor stator through the unsmooth cooperation between the locating piece of installing on the connecting seat and the frame, avoids in the installation, appears rocking, utilizes the positioning action of locating piece to be convenient for be connected stator core and stator winding and frame simultaneously, and when the produced heat of stator work made inside pressure rise moreover, through the removal of fly leaf, can alleviate internal pressure, increase of service life.

Description

Traction motor stator

Technical Field

The utility model relates to a relevant technical field of traction motor stator specifically is a traction motor stator.

Background

The traction motor is mainly used in a railway main line electric locomotive and an industrial and mining electric locomotive, a traction motor stator is an important component of the traction motor, the stator is a stationary part in a motor and specifically comprises a stator core, a stator winding and a machine base, however, the traction motor stator on the market at present has the following problems:

1. in the stator assembling process, the stator winding and the stator core need to be installed on the base through the bolt assembly, however, in the installation process, the stator winding and the stator core are prone to stress deviation, and the installation operation is affected;

2. when the normal work of traction motor is realized with the rotor cooperation to the stator, a large amount of heat will be gathered to stator inside, leads to the inside pressure of stator too big, influences normal operating, shortens life.

We therefore propose a traction motor stator in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a traction motor stator to solve the current traction motor stator that has on the existing market that above-mentioned background art provided and take place the skew easily in the equipment process, influence going on of installation operation, and the stator is inside gathers a large amount of heats at work easily, and makes inside pressure rise, influences normal operating, shortens life's problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: a traction motor stator comprises a shell and a base, wherein a stator winding is arranged inside the shell, a stator core is arranged inside the stator winding, a connecting seat is arranged at the upper end of the shell, and the connecting seat is fixedly connected with the base through a bolt assembly;

further comprising:

the fixed plate is arranged inside the shell and is positioned at the upper end of the stator winding;

and the movable plate is movably arranged in the cavity, and the cavity is arranged in the fixed plate.

Preferably, the locating piece is installed to the one end that the shell was kept away from to the connecting seat, and the upper end of locating piece stretches into the inside of frame to locating piece and frame constitute unsmooth cooperation, make under the unsmooth mating reaction between locating piece and frame, can fix a position the connecting seat on the frame, and prevent to take place to rock in the installation, improve the installation effect.

Preferably, the locating piece is cylindrical structural design, and the locating piece is the angular distribution such as centre of a circle about the center of connecting seat for under the mating reaction of a plurality of locating pieces and frame, improve stability.

Preferably, the movable plate is attached to the inner wall of the cavity, and a pressure spring is welded between the upper end of the movable plate and the fixed plate, so that the movable plate and the fixed plate are matched to divide the inside of the shell into an upper space and a lower space.

Preferably, the pressure spring is in a compressed state, and the movable plate connected to the lower end of the pressure spring and the fixed plate form an up-and-down sliding structure, so that when the pressure in the space below the movable plate is increased, the movable plate can slide in the fixed plate and can be reset by the pressure spring.

Preferably, the upper end and the lower end of the cavity are both provided with through holes, the through holes are arranged in the movable plate and communicated with the cavity, and the widths of the upper through hole and the lower through hole are smaller than the width of the movable plate, so that the movable plate cannot fall off in the fixed plate.

Compared with the prior art, the beneficial effects of the utility model are that: this traction motor stator through the unsmooth cooperation between the locating piece of installing on the connecting seat and the frame, avoids in the installation, appears rocking, utilizes the positioning action of locating piece to be convenient for be connected stator core and stator winding and frame simultaneously, and when the stator work produced heat and made inside pressure rise, through the removal of fly leaf, can alleviate internal pressure, increase of service life, its concrete effect is as follows:

1. the stator core and the stator winding are positioned by utilizing the concave-convex fit between the positioning block and the machine base, so that the mounting precision is improved, and meanwhile, the shaking in mounting can be reduced under the concave-convex fit effect, and the mounting effect is improved;

2. the movable plate and the pressure spring are arranged, so that when the stator and the rotor generate a large amount of heat in operation, the pressure inside the stator is increased, and when the pressure is increased, the movable plate moves upwards under the action of the difference between the upper pressure and the lower pressure, the lower space is enlarged, the internal pressure is reduced, and the service life is prolonged.

Drawings

FIG. 1 is a schematic view of the overall front-cut structure of the present invention;

FIG. 2 is a schematic view of the front cut structure of the fixing plate of the present invention;

FIG. 3 is a schematic view of a top-down structure of the connecting seat of the present invention;

fig. 4 is a schematic view of the side-looking three-dimensional structure of the fixing plate of the present invention.

In the figure: 1. a housing; 2. a stator core; 3. a stator winding; 4. a connecting seat; 5. positioning blocks; 6. a fixing plate; 7. a cavity; 8. a movable plate; 9. a pressure spring; 10. a through hole; 11. a machine base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a traction motor stator comprises a shell 1 and a base 11, wherein a stator winding 3 is arranged inside the shell 1, a stator core 2 is arranged inside the stator winding 3, a connecting seat 4 is arranged at the upper end of the shell 1, and the connecting seat 4 is fixedly connected with the base 11 through a bolt assembly; further comprising: a positioning block 5 is arranged at one end of the connecting seat 4 far away from the shell 1, the upper end of the positioning block 5 extends into the base 11, and the positioning block 5 and the base 11 form concave-convex matching; the positioning block 5 is designed in a cylindrical structure, and the positioning block 5 is distributed in an equal angle around the center of the connecting seat 4 as a circle center;

with reference to fig. 1-3, when the stator core 2, the stator winding 3 and the base 11 are installed, the positioning block 5 on the connecting seat 4 is inserted into the base 11, and the connecting seat 4 is positioned by utilizing the concave-convex fit between the positioning block 5 and the base 11, so that the installation accuracy is improved, and meanwhile, under the concave-convex fit effect, the stator core 2 and the stator winding 3 can be prevented from shaking in the installation process, so that the installation effect is improved;

a fixing plate 6 installed inside the case 1, the fixing plate 6 being positioned at an upper end of the stator winding 3; a movable plate 8 which is movably arranged in the cavity 7, and the cavity 7 is arranged in the fixed plate 6; the movable plate 8 is attached to the inner wall of the cavity 7, and a pressure spring 9 is welded between the upper end of the movable plate 8 and the fixed plate 6; the pressure spring 9 is in a compressed state, and the movable plate 8 and the fixed plate 6 which are connected with the lower end of the pressure spring 9 form an up-and-down sliding structure; the upper end and the lower end of the cavity 7 are both provided with through holes 10, the through holes 10 are arranged inside the movable plate 8, the through holes 10 are communicated with the cavity 7, and the widths of the upper through hole 10 and the lower through hole 10 are both smaller than the width of the movable plate 8;

with reference to fig. 1-4, when the traction motor is in operation and the stator and the rotor are engaged with each other, a large amount of heat is generated inside the stator, which causes the pressure inside the stator to be too high, and the movable plate 8 moves upward under the action of the pressure difference between the upper space and the lower space, so as to expand the lower space, relieve the pressure inside the stator, and prolong the service life.

The working principle is as follows: when the traction motor stator is used, as shown in fig. 1-4, the stator winding 3 is sleeved on the outer side of the stator core 2, and the stator winding 3 is installed inside the housing 1, when the stator core 2, the stator winding 3 and the base 11 are installed, firstly, the positioning block 5 on the connecting seat 4 is inserted into the base 11, the connecting seat 4 is positioned by utilizing the concave-convex fit between the positioning block 5 and the base 11, so that the installation accuracy is improved, and meanwhile, under the concave-convex fit effect, the situation that the stator core 2 and the stator winding 3 shake in the installation process can be avoided, so that the installation effect is improved, when the traction motor is in the operation process, and the stator and the rotor are mutually matched, a large amount of heat is generated inside the stator, so that when the pressure inside the stator is too large, the movable plate 8 moves upwards under the action of the pressure difference between the upper space and the lower space, so that the internal pressure of the stator is relieved, and the service life is prolonged.

Those not described in detail in this specification are prior art well known to those skilled in the art, and in the description of the present invention, "plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A traction motor stator comprises a shell (1) and a base (11), wherein a stator winding (3) is arranged inside the shell (1), a stator core (2) is arranged inside the stator winding (3), a connecting seat (4) is arranged at the upper end of the shell (1), and the connecting seat (4) is fixedly connected with the base (11) through a bolt assembly;

it is characterized by also comprising:

a fixing plate (6) which is installed inside the housing (1), wherein the fixing plate (6) is positioned at the upper end of the stator winding (3);

the movable plate (8) is movably arranged in the cavity (7), and the cavity (7) is arranged in the fixed plate (6).

2. The traction motor stator according to claim 1, wherein: the connecting seat (4) is far away from one end of the shell (1) and is provided with a positioning block (5), the upper end of the positioning block (5) extends into the interior of the machine base (11), and the positioning block (5) and the machine base (11) form concave-convex matching.

3. The traction motor stator according to claim 2, wherein: the positioning block (5) is designed to be a cylindrical structure, and the positioning block (5) is distributed in an equiangular mode around the center of the connecting seat (4) as the circle center.

4. The traction motor stator according to claim 1, wherein: the movable plate (8) is attached to the inner wall of the cavity (7), and a pressure spring (9) is welded between the upper end of the movable plate (8) and the fixed plate (6).

5. The traction motor stator according to claim 4, wherein: the pressure spring (9) is in a compressed state, and the movable plate (8) and the fixed plate (6) which are connected with the lower end of the pressure spring (9) form an up-and-down sliding structure.

6. The traction motor stator according to claim 1, wherein: the upper end and the lower end of the cavity (7) are provided with through holes (10), the through holes (10) are arranged in the movable plate (8), the through holes (10) are communicated with the cavity (7), and the widths of the upper through hole and the lower through hole (10) are smaller than the width of the movable plate (8).