CN212518567U - Stepping motor - Google Patents
Stepping motor Download PDFInfo
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- CN212518567U CN212518567U CN202021951560.2U CN202021951560U CN212518567U CN 212518567 U CN212518567 U CN 212518567U CN 202021951560 U CN202021951560 U CN 202021951560U CN 212518567 U CN212518567 U CN 212518567U
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Abstract
The utility model relates to a step motor, skeleton, motor rear frame, motor rotor subassembly, motor front bearing, motor rear bearing and motor set screw before motor stator, motor front end housing, motor mounting panel, motor rear end housing, motor front end housing and motor mounting panel be together fixed, motor front bearing and motor rear bearing install respectively on motor front end housing and motor rear end housing, motor set screw twist behind motor rear end housing, motor rear frame, motor stator, the motor front end housing after passing in proper order, motor stator's stator core adopt the stator core at different slot pitch angles, motor set screw pass the great groove of slot pitch angle in the stator core. Compared with the prior art, the utility model has the advantages of the motor is compact, is favorable to the miniaturization of motor size, promotes the power density of motor.
Description
Technical Field
The utility model relates to a motor especially relates to a step motor.
Background
The existing hybrid stepping motor structure is shown in fig. 1-3, in the existing stepping motor, the external structure of the motor is square, four corners of the motor are the motor and fixing screw holes for customers, and the external size of the motor is too large due to the structure, which is not beneficial to the miniaturization of the motor and the improvement of power density.
Through retrieval, the chinese patent publication No. CN203708069U discloses a circular stepping motor, which specifically comprises a front end cover, a rear end cover, a stator assembly, a rotor assembly, a front end insulating sheet, and a rear end insulating sheet, wherein the front end cover is circular, two screws are arranged on the front end cover, and the screws sequentially pass through the front end cover, the front end insulating sheet, the stator assembly, the rear end insulating sheet, and the rear end cover, and the circular front end cover is arranged, so that the circular stepping motor has the advantages of high efficiency, light weight, high reliability, and capability of improving the bearing capacity of the rotor; however, this technique has the following problems: when its screw passed stator assembly, the groove area of stator can reduce, and the wire winding area of motor also can reduce like this, influences the performance of motor.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a stepping motor for overcoming the above-mentioned drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
according to an aspect of the utility model, a step motor is provided, skeleton, motor rear axle bearing and motor set screw before motor stator, motor front end housing, motor mounting panel, motor rear end housing, motor rear axle bearing and motor mounting panel are fixed together, motor front axle bearing and motor rear axle bearing install respectively on motor front end housing and motor rear end housing, motor set screw twist the motor front end housing behind passing motor rear end housing, motor rear axle bearing, motor stator, the skeleton in proper order, motor stator's stator core adopt the stator core of different slot pitch angles, motor set screw pass the great groove of slot pitch angle in the stator core.
As a preferred technical scheme, the motor front end cover and the motor mounting plate are fixed together in a riveting and pressing mode.
As a preferred technical scheme, a threaded hole matched with the motor fixing screw is formed in the surface of the front end cover of the motor.
As a preferable technical scheme, a through hole for a motor fixing screw to pass through is formed in the rear end cover of the motor.
Preferably, the stator core of the motor stator adopts a two-phase 3.75 ° step angle stepping motor stator core, and the groove pitch angle of the larger groove is 56.25 °.
Preferably, the stator core of the motor stator adopts a two-phase stator core of a stepping motor with a step angle of 5.625 degrees, and the groove pitch angle of a larger groove of the stator core is 61.875 degrees.
As a preferable technical solution, the stator core of the motor stator adopts a two-phase stator core of a stepping motor with a 6 ° pitch angle, and the pitch angle of the larger slot is 54 °.
Preferably, the stator core of the motor stator adopts a two-phase 7.5-degree step angle stepping motor stator core, and the groove pitch angle of a larger groove of the stator core is 67.5 degrees or 52.5 degrees.
As a preferred technical scheme, a stator core of the motor stator adopts a two-phase stepping motor stator core with a step angle of 10 degrees, and the groove pitch angle of a larger groove is 90 degrees;
or, the stator core of the motor stator adopts a two-phase 11.25-degree step angle stepping motor stator core, and the groove pitch angle of a larger groove of the stator core is 78.75 degrees.
As a preferable technical scheme, a stator core of the motor stator adopts a stator core of a three-phase 5.455-degree step-angle stepping motor, and the groove pitch angle of a larger groove is 76.365 degrees;
or the stator core of the motor stator adopts a stator core of a three-phase stepping motor with 6-degree or 12-degree stepping angles, and the groove pitch angle of a larger groove is 72 degrees;
or, the stator core of the motor stator adopts a three-phase 7.5-degree step angle stepping motor stator core, and the groove pitch angle of a larger groove of the stator core is 60 degrees.
Compared with the prior art, the utility model has the advantages of it is following:
1) the motor has the advantages that the miniaturization and the power density improvement are realized, the motor core is round, the motor fixing screw penetrates into the motor stator core slot, the size of the motor body does not exceed the outer diameter of the stator of the motor, the motor is compact in size, the motor size miniaturization is facilitated, and the power density of the motor is improved;
2) the performance of the motor is guaranteed, when the fixing screw of the motor passes through a larger groove, the actual winding area of the motor is not affected, and the performance of the motor is not reduced.
Drawings
Fig. 1 is a front view structural schematic diagram of a conventional motor;
FIG. 2 is a schematic side view of a conventional motor;
FIG. 3 is a schematic sectional view A-A of FIG. 1;
FIG. 4 is a schematic front view showing the structure of embodiment 1;
FIG. 5 is a schematic right-view structural view of embodiment 1;
FIG. 6 is a schematic perspective view of the structure of example 1;
FIG. 7 is a schematic diagram showing an exploded structure of example 1;
FIG. 8 is a front view of the front end cap of the embodiment 1;
FIG. 9 is a schematic perspective view of a front end cap according to embodiment 1;
FIG. 10 is a front view of the rear end cap of the embodiment 1;
FIG. 11 is a schematic perspective view of a rear end cap according to embodiment 1;
fig. 12 is a schematic view of a stator core structure of embodiment 2;
fig. 13 is a structural schematic view of a stator core of embodiment 3;
fig. 14 is a structural schematic view of a stator core of embodiment 4;
fig. 15 is a structural schematic view of a stator core of embodiment 5;
fig. 16 is a structural schematic view of a stator core of embodiment 6;
fig. 17 is a structural schematic view of a stator core of embodiment 7;
fig. 18 is a structural schematic view of a stator core according to embodiment 8;
fig. 19 is a structural schematic view of a stator core according to embodiment 9;
fig. 20 is a schematic structural view of a stator core according to embodiment 10;
fig. 21 is a schematic structural view of a stator core according to embodiment 11;
fig. 22 is a schematic structural view of a stator core according to embodiment 12.
The motor fixing structure comprises a motor fixing mounting hole, a motor front end cover, a motor front skeleton, a motor rear skeleton, an outgoing line PCB and a motor rear end cover, wherein a is the motor fixing mounting hole, b is the existing motor front end cover, c is the existing motor front skeleton, d is the existing motor rear skeleton, e is the outgoing line PCB, and f is the existing motor rear;
the motor comprises a motor body 1, a motor stator 2, a motor front end cover 3, a motor mounting plate 4, a motor rear end cover 5, a motor front framework 6, a motor rear framework 7, a motor rotor assembly 8, a motor front bearing 9, a motor rear bearing 10, a motor fixing screw 11, a threaded hole 12, a riveting fixing point 13 and a through hole 14.
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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 3-7, a stepping motor comprises a motor stator 2, a motor front end cover 3, a motor mounting plate 4, a motor rear end cover 5, a motor front frame 6, a motor rear frame 7, a motor rotor assembly 8, a motor front bearing 9, a motor rear bearing 10 and a motor fixing screw 11, wherein the motor front end cover 3 and the motor mounting plate 4 are fixed together, the motor front bearing 9 and the motor rear bearing 10 are respectively installed on the motor front end cover 3 and the motor rear end cover 5, the motor fixing screw 11 sequentially penetrates through the motor rear end cover 5, the motor rear frame 7, the motor stator 2 and the motor front frame 6 and then is screwed into the motor front end cover 3,
the utility model discloses in circular stator, place the set screw of motor in motor stator core's inslot, the body size of motor does not surpass the stator external diameter of motor like this, and motor compact structure is favorable to promoting the power density of motor.
When the motor fixing screw 11 passes through the stator core of the motor stator 2, the slot area of the motor stator can be reduced, so that the winding area of the motor can be reduced, and the performance of the motor is affected.
The utility model discloses in, motor stator 2's stator core adopt the stator core of different slot pitch angles, motor set screw 11 pass the great groove of slot pitch angle in the stator core. That is, the utility model discloses in, it is big than the groove pitch angle in other grooves to have a plurality of grooves, because the wire winding of motor depends on the minimum groove, so when the set screw of motor passes from great groove, do not influence the actual wire winding area of motor, the performance of motor also can not reduce.
As shown in fig. 8-9, the motor front cover 3 and the motor mounting plate 4 are fixed together by riveting. The riveting fixed point 13 is arranged on the motor front end cover 3, and a threaded hole 12 matched with the motor fixing screw 11 is arranged on the surface of the motor front end cover 3.
As shown in fig. 10 to 11, the motor rear end cover 5 is provided with a through hole 14 for passing the motor fixing screw 11.
Example 2
As shown in fig. 12, the stator core of the motor stator 2 is a two-phase 3.75 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 56.25 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 56.25 °.
Example 3
As shown in fig. 13, the stator core of the motor stator 2 is a two-phase 5.625 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 61.875 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 61.875 °.
Example 4
As shown in fig. 14, the stator core of the motor stator 2 is a two-phase 6 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 54 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 54 °.
Example 5
As shown in fig. 15, the stator core of the motor stator 2 is a two-phase 7.5 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 67.5 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 67.5 °.
Example 6
As shown in fig. 16, the stator core of the motor stator 2 is a two-phase 7.5 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 52.5 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 52.5 °.
Example 7
As shown in fig. 17, the stator core of the motor stator 2 is a two-phase 10 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 90 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 90 °.
Example 8
As shown in fig. 18, the stator core of the motor stator 2 is a two-phase 11.25 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 78.75 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 78.75 °.
Example 9
As shown in fig. 19, the stator core of the motor stator 2 is a stator core of a three-phase 5.455 ° step-angle stepping motor, the slot pitch angle of the larger slot is 76.365 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 76.365 °.
Example 10
As shown in fig. 20, the stator core of the motor stator 2 is a three-phase 6 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 72 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 72 °.
Example 11
As shown in fig. 21, the stator core of the motor stator 2 is a three-phase 7.5 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 60 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 60 °.
Example 12
As shown in fig. 22, the stator core of the motor stator 2 is a three-phase 12 ° step-angle stepping motor stator core, the slot pitch angle of the larger slot is 72 °, and the motor fixing screw 11 passes through the slot with the slot pitch angle of 72 °.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A stepping motor comprises a motor stator (2), a motor front end cover (3), a motor mounting plate (4), a motor rear end cover (5), a motor front framework (6), a motor rear framework (7), a motor rotor assembly (8), a motor front bearing (9), a motor rear bearing (10) and a motor fixing screw (11), wherein the motor front end cover (3) and the motor mounting plate (4) are fixed together, the motor front bearing (9) and the motor rear bearing (10) are respectively arranged on the motor front end cover (3) and the motor rear end cover (5), the motor fixing screw (11) sequentially penetrates through the motor rear end cover (5), the motor rear framework (7), the motor stator (2) and the motor front framework (6) and then is screwed into the motor front end cover (3), and the stepping motor is characterized in that a stator core of the motor stator (2) adopts stator cores with different slot pitch angles, the motor fixing screw (11) penetrates through a slot with a larger slot pitch angle in the stator core.
2. A stepping motor according to claim 1, characterized in that the motor front cover (3) and the motor mounting plate (4) are fixed together by riveting.
3. The stepping motor according to claim 1, wherein the surface of the motor front end cover (3) is provided with a threaded hole (12) matched with the motor fixing screw (11).
4. A stepping motor according to claim 1, characterized in that the motor rear end cover (5) is provided with a through hole (14) for passing a motor fixing screw (11).
5. A stepping motor according to claim 1, characterized in that the stator core of the motor stator (2) is a two-phase 3.75 ° step-angle stepping motor stator core, the larger slots of which have a slot pitch angle of 56.25 °.
6. A stepping motor as claimed in claim 1, characterized in that the stator core of said motor stator (2) is a two-phase 5.625 ° step-angle stepping motor stator core, the larger slots of which have a slot pitch angle of 61.875 °.
7. A stepping motor according to claim 1, characterized in that the stator core of the motor stator (2) is a two-phase 6 ° step-angle stepping motor stator core, the larger slots of which have a pitch angle of 54 °.
8. A stepping motor according to claim 1, characterized in that the stator core of the motor stator (2) is a two-phase 7.5 ° step-angle stepping motor stator core, and the larger slots have a slot pitch angle of 67.5 ° or 52.5 °.
9. A stepping motor according to claim 1, characterized in that the stator core of the motor stator (2) is a two-phase 10 ° step-angle stepping motor stator core, the larger slots of which have a pitch angle of 90 °;
or the stator core of the motor stator (2) adopts a two-phase 11.25-degree step angle stepping motor stator core, and the groove pitch angle of a larger groove is 78.75 degrees.
10. A stepping motor according to claim 1, characterized in that the stator core of the motor stator (2) is a three-phase 5.455 ° step-angle stepping motor stator core, the larger slots of which have a slot pitch angle of 76.365 °;
or the stator core of the motor stator (2) adopts a three-phase stepping motor stator core with a 6-degree or 12-degree stepping angle, and the groove pitch angle of a larger groove is 72 degrees;
or the stator core of the motor stator (2) adopts a three-phase 7.5-degree step angle stepping motor stator core, and the groove pitch angle of a larger groove is 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021951560.2U CN212518567U (en) | 2020-09-09 | 2020-09-09 | Stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021951560.2U CN212518567U (en) | 2020-09-09 | 2020-09-09 | Stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212518567U true CN212518567U (en) | 2021-02-09 |
Family
ID=74384265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021951560.2U Active CN212518567U (en) | 2020-09-09 | 2020-09-09 | Stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212518567U (en) |
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2020
- 2020-09-09 CN CN202021951560.2U patent/CN212518567U/en active Active
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