CN212435458U - Permanent magnet disc type stepping motor - Google Patents
Permanent magnet disc type stepping motor Download PDFInfo
- Publication number
- CN212435458U CN212435458U CN202021651224.6U CN202021651224U CN212435458U CN 212435458 U CN212435458 U CN 212435458U CN 202021651224 U CN202021651224 U CN 202021651224U CN 212435458 U CN212435458 U CN 212435458U
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- Prior art keywords
- shaft
- disc
- permanent magnet
- motor
- rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000004804 winding Methods 0.000 claims abstract description 30
- 230000005389 magnetism Effects 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a permanent magnet disc type stepping motor, which comprises a stator part and a rotor part; the stator part comprises a shell, a winding coil and a winding ring; the middle part of the shell is provided with a rotor mounting hole, an annular cavity is formed inside the shell, the winding ring is arranged in the annular cavity, and the winding wire is arranged on the winding ring; the rotor part comprises a motor shaft and a deep groove ball bearing; the shaft part of the motor shaft is provided with a shaft disc, magnet mounting holes are uniformly formed in the shaft disc, permanent magnets are arranged in the magnet mounting holes, the axial directions of the axes of the permanent magnets and the shaft disc are consistent, and the magnetism of one ends of the adjacent permanent magnets, which are positioned on the same side of the shaft disc, is different; the motor shaft is rotatably arranged in the rotor mounting hole through a deep groove ball bearing. The utility model discloses a permanent magnetism disk step motor has that structure and drive mode are simple, the torsion-weight ratio is big, outage self-locking torque is big, axial length is short, space utilization is high advantage.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a permanent magnetism disk step motor.
Background
A common stepping motor structure is mainly composed of a rotor, a stator, a winding coil, a motor shaft and related accessories. In general, a conventional stepper motor has a long axial length, a small torsion-weight ratio, a small self-locking torque, and is not flexibly installed, and is difficult to be applied to specific occasions where a small installation space is needed and a large torsion-weight ratio and a large self-locking torque are needed.
Therefore, it is desirable to provide a stepping motor which has a short axial length, a small volume, a large torque ratio, a large self-locking torque, and is flexibly mountable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a permanent magnetism disk step motor is used for solving the problem that conventional step motor exists when using.
The utility model provides a technical problem adopt following technical scheme:
a permanent magnet disk type stepping motor comprises a stator part and a rotor part; the rotor part is rotatably arranged in the stator part;
wherein the stator portion includes a case, a winding coil, and a winding ring; the middle part of the shell is provided with a rotor mounting hole, an annular cavity is formed inside the shell, the winding ring is arranged in the annular cavity inside the shell, and the winding wire is arranged on the winding ring and is positioned in the annular cavity;
the rotor part comprises a motor shaft and a deep groove ball bearing; the shaft part of the motor shaft is provided with a shaft disc, magnet mounting holes are uniformly formed in the shaft disc, permanent magnets are arranged in the magnet mounting holes, the axial directions of the axes of the permanent magnets and the shaft disc are consistent, and the magnetism of one ends of the adjacent permanent magnets, which are positioned on the same side of the shaft disc, is different; the number of the deep groove ball bearings is 2, the deep groove ball bearings are respectively arranged on the motor shafts on two sides of the shaft disc, and the motor shafts are rotatably arranged in the rotor mounting holes through the deep groove ball bearings.
Further, the casing includes the same left casing and right casing of shape, the annular cavity is enclosed by two annular grooves of seting up on left casing and right casing and closes and form.
Further, when the permanent magnet is installed, the surface of the permanent magnet is coated with glue.
Further, the air gap between the disk end face of the shaft disk and the shell is less than 0.1 mm.
The utility model discloses following beneficial effect has: the utility model discloses a step-by-step rotary motion is realized through two kinds of drive mode combined action of electromagnetic drive and permanent magnetism drive to permanent magnetism disk step motor, has that structure and drive mode are simple, turn round the weight ratio big, outage self-locking torque is big, axial length is short, space utilization is high advantage.
Drawings
Fig. 1 is a sectional view of a permanent magnet disc type stepping motor according to the present invention;
fig. 2 is a schematic structural view of a motor shaft of the present invention;
fig. 3 is an installation method of the permanent magnet disc type stepping motor of the present invention when using the step positioning of the housing;
fig. 4 is an installation method of the permanent magnet disc type stepping motor of the present invention when using the shell outer circle for positioning.
The notation in the figures means: 1-a shell; 2-a winding coil; 3-a wire winding ring; 4-deep groove ball bearing; 5-motor shaft; 6-permanent magnet; 7-locking the bolt; 8-hexagonal nut; 9-an annular cavity; 10-shaft disc.
Detailed Description
The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.
Example 1
The embodiment provides a permanent magnet disc type stepping motor which is used for solving the problems that the axial length of a conventional stepping motor is long, the torsion-weight ratio is small, the self-locking torque is small, and the mounting cannot be flexible.
As shown in fig. 1-2, a permanent magnet disc type stepping motor includes a stator portion and a rotor portion; the rotor portion is rotatably disposed in the stator portion.
In an embodiment of the present invention, the stator part comprises a housing 1, a winding coil 2 and a winding ring 3; the winding ring 3 is disposed in the housing 1, and the winding coil 2 is disposed on the winding ring 3.
Specifically, a rotor mounting hole is formed in the middle of the casing 1, an annular cavity 9 is further formed inside the casing 1, the winding ring 3 is arranged in the annular cavity 9 inside the casing 1, and the winding coil 2 is arranged on the winding ring 3 and located in the annular cavity 9.
In this embodiment, the housing 1 includes a left housing and a right housing having the same shape, and the annular cavity 9 is enclosed by two annular grooves formed on the left housing and the right housing. In order to guarantee the joint strength of the left and right shells, through holes are formed in the left shell, the right shell and the winding ring 3, the locking bolts 7 sequentially penetrate through the through holes in the left shell, the winding ring 3 and the right shell, and are locked through the hexagon nuts 8, so that the left shell, the right shell and the winding ring 3 are fixed. Similarly, the rotor mounting hole is composed of two through holes arranged in the upper middle parts of the left shell and the right shell.
In the embodiment of the present invention, the rotor portion includes the motor shaft 5 and the deep groove ball bearing 4, the motor shaft 5 is rotatably disposed in the stator portion through the deep groove ball bearing 4.
Specifically, a shaft disc 10 is arranged on the motor shaft 5, magnet mounting holes 11 are uniformly formed in the shaft disc 10, permanent magnets 6 are arranged in the magnet mounting holes 11, the axial direction of each permanent magnet 6 is consistent with the axial direction of the shaft disc 10, and the magnetism of one end, located on the same side of the shaft disc 10, of each adjacent permanent magnet 6 is different; the number of the deep groove ball bearings 4 is 2, and the deep groove ball bearings are respectively arranged on the motor shafts 5 on two sides of the shaft disc 10, so that the motor shafts 5 can be rotatably arranged in the rotor mounting holes. Preferably, when the permanent magnet 6 is mounted, the permanent magnet 6 is prevented from falling out of the magnet mounting hole 11 by applying glue to the permanent magnet 6.
The utility model discloses an among the permanent magnetism disk step motor, in order to guarantee that the motor has great torque and self-locking torque, the air gap between the dish terminal surface of reel 10 and casing 1 is less than 0.1 mm.
As shown in fig. 3-4, when the permanent magnet disc type stepping motor of the present invention is assembled, if the motor needs to be fixed by step centering and end face fitting, the motor can be directly fixed to the mounting position by using the locking bolt, so that the use of the hexagon nut is omitted; if the motor needs to be fixed in a mode of positioning the outer circle of the motor, a hexagon nut and a locking bolt are matched to lock the motor.
On the other hand, the utility model discloses a permanent magnetism disk step motor's rotation divides into corotation and reversal, after having confirmed the corresponding relation of electric current with turning to, if the direction that only needs to change winding pulse current commutates.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. A permanent magnet disk type stepping motor is characterized by comprising a stator part and a rotor part; the rotor part is rotatably arranged in the stator part;
wherein the stator portion includes a case, a winding coil, and a winding ring; the middle part of the shell is provided with a rotor mounting hole, an annular cavity is formed inside the shell, the winding ring is arranged in the annular cavity inside the shell, and the winding wire is arranged on the winding ring and is positioned in the annular cavity;
the rotor part comprises a motor shaft and a deep groove ball bearing; the shaft part of the motor shaft is provided with a shaft disc, magnet mounting holes are uniformly formed in the shaft disc, permanent magnets are arranged in the magnet mounting holes, the axial directions of the axes of the permanent magnets and the shaft disc are consistent, and the magnetism of one ends of the adjacent permanent magnets, which are positioned on the same side of the shaft disc, is different; the number of the deep groove ball bearings is 2, the deep groove ball bearings are respectively arranged on the motor shafts on two sides of the shaft disc, and the motor shafts are rotatably arranged in the rotor mounting holes through the deep groove ball bearings.
2. The permanent magnet disc type stepping motor according to claim 1, wherein the housing comprises a left housing and a right housing which are identical in shape, and the annular cavity is enclosed by two annular grooves formed in the left housing and the right housing.
3. A permanent magnet disc type stepping motor according to claim 1, wherein the surface of the permanent magnet is coated with a glue when the permanent magnet is mounted.
4. A permanent magnet disc stepper motor according to claim 1, wherein the air gap between the disc end face of the hub and the housing is less than 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021651224.6U CN212435458U (en) | 2020-08-11 | 2020-08-11 | Permanent magnet disc type stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021651224.6U CN212435458U (en) | 2020-08-11 | 2020-08-11 | Permanent magnet disc type stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212435458U true CN212435458U (en) | 2021-01-29 |
Family
ID=74273883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021651224.6U Expired - Fee Related CN212435458U (en) | 2020-08-11 | 2020-08-11 | Permanent magnet disc type stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212435458U (en) |
-
2020
- 2020-08-11 CN CN202021651224.6U patent/CN212435458U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 |