CN219611534U

CN219611534U - Staggered tooth structure of motor

Info

Publication number: CN219611534U
Application number: CN202320453706.8U
Authority: CN
Inventors: 周成利
Original assignee: Zhongshan Shengyang Motor Co ltd
Current assignee: Zhongshan Shengyang Motor Co ltd
Priority date: 2023-03-11
Filing date: 2023-03-11
Publication date: 2023-08-29
Anticipated expiration: 2033-03-11

Abstract

The utility model discloses a staggered tooth structure of a motor, which comprises a stator assembly, wherein the stator assembly comprises a stator main body, an inner staggered tooth groove which is arranged at the axis of the stator main body and is in matched engagement transmission with the rotor main body, and the rotor assembly comprises a rotor main body, a connecting shaft arranged at the bottom end of the rotor main body, and an outer staggered tooth groove which is arranged outside the connecting shaft and is in penetrating connection with the inner staggered tooth groove.

Description

Staggered tooth structure of motor

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to a staggered tooth structure of a motor.

Background

The rotor punching sheets of the hybrid stepping motor are required to be staggered by an angle which is half of the included angle of every two adjacent teeth on the rotor punching sheets, so that when adjacent rotor iron cores are processed, the adjacent rotor iron cores are required to be staggered by a fixed angle through a staggered tooth tool, and the processed staggered teeth are matched with the rotor to generate rotation transmission acting force;

accordingly, the present utility model provides a staggered tooth structure of a motor that keeps a stator and a rotor stably rotating.

Disclosure of Invention

The utility model aims to provide a staggered tooth structure of a motor so as to solve the problems in the prior art.

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

an offset tooth construction for an electric machine, comprising:

the stator assembly comprises a stator main body, a bearing seat arranged at the axis of the stator main body and an internal staggered tooth slot which is in matched engagement transmission with the rotor shaft main body, and an external tooth matched and assembled with the motor is arranged on the outer wall of the stator main body;

the rotor assembly comprises a rotor shaft main body, a connecting shaft arranged at the bottom end of the rotor shaft main body, and an outer staggered tooth slot which is arranged outside the connecting shaft and is connected with the inner staggered tooth slot in a penetrating manner, wherein the rotor shaft main body penetrates through the inner staggered tooth slot through the connecting shaft and is in meshed transmission with the inner staggered tooth slot through the outer staggered tooth slot, and a limiting shaft rod which is limited by the assembly of the connecting shaft and the stator assembly is arranged at the tail end of the rotor shaft main body.

Further, at least two screw hole through grooves matched with the stator main body and the motor are formed in the stator main body.

Further, the cross sections of the internal staggered tooth grooves and the external staggered tooth grooves are correspondingly in trapezoid meshing transmission.

Further, the upper surface and the lower surface of the stator main body are respectively provided with a bulge arranged at the outer edge of the inner staggered tooth groove, the bottom end of the rotor shaft main body is provided with a limiting groove, and the limiting groove is arranged at the outer edge of the outer staggered tooth groove and is matched and butted with the bulge.

Further, the protrusions are arranged on the bearing seat, and the inner staggered tooth grooves are arranged on the inner ring of the bearing seat.

Further, the limiting shaft rod is fixed with the connecting shaft through welding or bolts.

The utility model has the following technical effects and advantages:

the staggered tooth structure of the motor is characterized in that a bearing seat with an internal staggered tooth groove is arranged on a stator assembly, and is in meshed transmission with an external staggered tooth groove of a connecting shaft on a rotor assembly through the internal staggered tooth groove, so that the connecting shaft connected on a rotor shaft main body is meshed with the internal staggered tooth groove on the stator main body through the external staggered tooth groove.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of a stator assembly according to the present utility model;

fig. 3 is a schematic view of a rotor assembly according to the present utility model.

In the figure: 1. a stator assembly; 2. a stator body; 3. a bearing seat; 4. staggered tooth grooves; 5. external teeth; 6. a rotor assembly; 7. a rotor shaft body; 8. a connecting shaft; 9. staggered tooth grooves; 10. a limit shaft lever; 11. the screw hole is communicated with the groove; 12. a protrusion; 13. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model provides a staggered tooth structure of an electric machine as shown in fig. 1-3, comprising:

the stator assembly 1, the stator assembly 1 comprises a stator main body 2, a bearing seat 3 arranged at the axis of the stator main body 2 and an inner staggered tooth groove 4 which is in matched engagement transmission with a rotor shaft main body 7, and an outer tooth 5 matched and assembled with a motor is arranged on the outer wall of the stator main body 2;

the rotor assembly 6 comprises a rotor shaft main body 7, a connecting shaft 8 arranged at the bottom end of the rotor shaft main body 7, and an outer staggered tooth slot 9 arranged outside the connecting shaft 8 and connected with the inner staggered tooth slot 4 in a penetrating way, wherein the rotor shaft main body 7 penetrates through the inner staggered tooth slot 4 through the connecting shaft 8, and the rotor shaft main body 7 is meshed and driven with the inner staggered tooth slot 4 through the outer staggered tooth slot 9;

the end of the rotor shaft main body 7 is provided with a limiting shaft rod 10 for limiting the assembly of the connecting shaft 8 and the stator assembly 1, the limiting shaft rod 10 is fixed with the connecting shaft 8 through welding or bolts, the limiting shaft rod 10 is used for limiting the connecting shaft 8 on the stator main body 2 by matching with the rotor shaft main body 7, the upper surface and the lower surface of the stator main body 2 are respectively provided with a bulge 12 arranged at the outer edge of the inner staggered tooth groove 4, the bottom end of the rotor shaft main body 7 is provided with a limiting groove 13, the limiting groove 13 is arranged at the outer edge of the outer staggered tooth groove 9 and matched and butted with the bulge 12, the connecting shaft 8 on the rotor shaft main body 7 is matched and butted with the limiting groove 13 through the bulge 12, the stability of the connecting shaft 8 on the rotor shaft main body 7 and the inner staggered tooth groove 4 is further improved, the bulge 12 is arranged on the bearing seat 3, the inner staggered tooth groove 4 is arranged on the inner ring of the bearing seat 3, the rotor shaft main body 7 is matched and fixed with the bearing seat 3 after being butted with the bulge 12 through the limiting groove 13, and the rotor shaft main body 7 is further improved, and the stability of a rotating magnetic field is generated by the thrust of the rotor shaft main body 7 under the thrust of magnetic force lines.

At least two screw hole through grooves 11 matched with the stator main body 2 and assembled by the motor are formed in the stator main body 2, and the screw hole through grooves 11 are used for being matched with bolts on the motor to fix the stator main body 2.

The cross sections of the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 are correspondingly in trapezoid meshing transmission, and the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 which are in trapezoid meshing maintain the rotation stability of the stator main body 2 matched with the rotor shaft main body 7, and meanwhile the problem that the transmission acting force is reduced after friction is generated by meshing of the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 is avoided.

The stator assembly 1 is provided with the bearing seat 3 with the inner staggered tooth grooves 4, and the inner staggered tooth grooves 4 are meshed with the outer staggered tooth grooves 9 of the connecting shaft 8 on the rotor assembly 6 for transmission, so that the connecting shaft 8 connected on the rotor shaft body 7 is meshed with the inner staggered tooth grooves 4 on the stator body 2 through the outer staggered tooth grooves 9, the meshing force of the rotor shaft body 7 and the stator body 2 during transmission is improved due to the fact that the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 are matched to form trapezoid meshing, and even if the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 are worn, the inner staggered tooth grooves 4 and the outer staggered tooth grooves 9 still keep the effect of stable transmission of the rotor assembly 6 through the stator assembly 1, and the stable operation of the motor through the staggered tooth structure is ensured.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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 described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An offset tooth construction of an electric machine, comprising:

the stator assembly (1), the stator assembly (1) comprises a stator main body (2), a bearing seat (3) arranged at the axis of the stator main body (2) and an internal staggered tooth slot (4) which is in matched engagement transmission with a rotor shaft main body (7), and an external tooth (5) matched and assembled with a motor is arranged on the outer wall of the stator main body (2);

rotor subassembly (6), rotor subassembly (6) include rotor shaft main part (7), locate connecting axle (8) of rotor shaft main part (7) bottom, locate outside and to interior wrong tooth groove (4) through-connection's the outer wrong tooth groove (9) of wrong tooth groove (4), rotor shaft main part (7) run through interior wrong tooth groove (4) through connecting axle (8), rotor shaft main part (7) are through outer wrong tooth groove (9) and interior wrong tooth groove (4) meshing transmission, the end of rotor shaft main part (7) is equipped with spacing axostylus axostyle (10) that define connecting axle (8) and stator subassembly (1) assembly.

2. The staggered tooth structure of a motor as recited in claim 1, wherein: at least two screw hole through grooves (11) matched with the stator main body (2) and assembled with the motor are formed in the stator main body (2).

3. The staggered tooth structure of a motor as recited in claim 1, wherein: the cross sections of the inner staggered tooth grooves (4) and the outer staggered tooth grooves (9) are correspondingly in trapezoid meshed transmission.

4. The staggered tooth structure of a motor as recited in claim 1, wherein: the upper surface and the lower surface of the stator main body (2) are respectively provided with a bulge (12) arranged at the outer edge of the inner staggered tooth groove (4), the bottom end of the rotor shaft main body (7) is provided with a limiting groove (13), and the limiting groove (13) is arranged at the outer edge of the outer staggered tooth groove (9) and is matched and butted with the bulge (12).

5. The motor of claim 4, wherein: the bulge (12) is arranged on the bearing seat (3), and the inner staggered tooth groove (4) is arranged on the inner ring of the bearing seat (3).

6. The staggered tooth structure of a motor as recited in claim 1, wherein: the limiting shaft rod (10) is fixed with the connecting shaft (8) through welding or bolts.