CN204538839U - A kind of servo motor rotor structure - Google Patents
A kind of servo motor rotor structure Download PDFInfo
- Publication number
- CN204538839U CN204538839U CN201520118956.1U CN201520118956U CN204538839U CN 204538839 U CN204538839 U CN 204538839U CN 201520118956 U CN201520118956 U CN 201520118956U CN 204538839 U CN204538839 U CN 204538839U
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- Prior art keywords
- magnet steel
- servo motor
- stainless steel
- motor rotor
- rotor
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Abstract
The utility model discloses a kind of servo motor rotor structure, wherein rotor yoke is polygonized structure, magnet steel is eccentric throw magnet steel, and the cylindrical of magnet steel and the interior round-formed point cantact of stainless steel sleeve, with packing material fill in the space produced between magnet steel and stainless steel sleeve.This rotor can accelerate at motor, in high torque (HT) process, effectively prevent magnet steel circumference play, and improve air-gap field sine.
Description
Technical field
The utility model relates to a kind of servo motor rotor structure, relates to the structure optimization of a kind of servo motor rotor yoke, magnet steel particularly, thus guarantees that magnet steel there will not be circumferential play in motor operation course, improves air-gap field sine simultaneously.
Background technology
Along with the progress of science and technology, the performance of permanent magnetic material is constantly improved and perfect, and particularly the thermal stability of Nd-Fe-B permanent magnetic and corrosion resistance have had larger improvement, and the application technology of magneto reaches its maturity, and range of application expands gradually.Meanwhile, along with servomotor high-power (ultrahigh speed, high torque (HT)), multifunction and microminiaturized future development, the reliability requirement of modern technologies to servomotor is also more and more higher.Wherein, surface-mounted permanent magnet machine relies on the performance characteristic of its uniqueness, simple processing technology, has become one of main flow electric machine structure type.
But in extensive use, modern technology requirements servomotor possesses the characteristic of high rotating speed, high overload, fast response, and common tile magnet steel is very possible at this moment in circumference, mutual movement occurs with armature spindle, and cause electrical fault, reliability is not high.Thus the reliability how improving permanent magnet circumference location in frequent acceleration and deceleration process becomes the key of servomotor technology.
In the prior art, a kind of modified node method of high speed rotor shafts of Turbocorp Ltd's utility model, provides a kind of stainless steel sleeve, thus ensure motor at high speeds magnet steel can not to dish out armature spindle and cause structure to be separated.This scheme, ensure that motor when High Rotation Speed have very large centrifugal force, the splitting of magnet steel can not be caused, disintegrate.But this improvement only ensure that magnet steel can not be separated with armature spindle in radial direction, and can not guarantee the contingent mutual displacement in the circumference rotated at magnet steel and armature spindle.
The utility model proposes a kind of rotor structure of servomotor, the improvement to rotor yoke, magnetic steel structure can be realized, guarantee magnet steel and armature spindle and upwards can not produce mutual displacement, improve the reliability of servomotor, can air-gap field sine be improved simultaneously.
Utility model content
The purpose of this utility model is the modified node method providing a kind of servo motor rotor, and it can significantly improve the reliability of motor, and structure is simple, easy to make.
The utility model provides a kind of servo motor rotor structure, forms: rotor yoke primarily of with lower component; Magnet steel, stainless steel sleeve, the packing material between magnet steel and stainless steel sleeve.
Preferably, described rotor yoke is polygonized structure.
Preferably, the cylindrical of described magnet steel is off-centre operation structure, thus the interior round-formed point cantact of the cylindrical of magnet steel and stainless steel sleeve.
Preferably, the space between magnet steel and stainless steel sleeve is filled up with packing material.
The feature of this scheme is as follows:
(1) the accurate location of magnet steel can be realized, guarantee that magnet steel and armature spindle can not produce mutual movement in the circumferential;
(2) air-gap field sine is improved.
Accompanying drawing explanation
To be described the utility model by reference to the accompanying drawings now, wherein:
Fig. 1 is the structural representation of the utility model servo motor rotor.
Wherein, 1 stainless steel sleeve; 2 magnet steel; 3 packing materials; 4 yokes; 5 magnet steel and stainless steel sleeve point cantact place; 6 magnet steel and yoke vamp contact position.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
Fig. 1 is servo motor rotor structural representation.Wherein, rotor yoke 4 is polygonized structure, is processed by the rotor yoke of plain cylindrical form; The cylindrical of magnet steel 2 is off-centre operation, usually claims this structure to be eccentric throw magnet steel, thus round-formed point cantact in the cylindrical of magnet steel 2 and stainless steel sleeve 1.When mounted, first by yoke 4 hot jacket on armature spindle, and magnet steel 2 is bonded in yoke 4, subsequently by stainless steel sleeve 1 hot charging at magnet steel 2 cylindrical, and use packing material 3 to tamp in the space produced between magnet steel 2 and stainless steel sleeve 1.
The modified node method of above-mentioned this rotor and implementation method in acceleration, high torque (HT) process, effectively can prevent magnet steel circumference play at motor.Eccentric throw magnetic steel structure improves air-gap field sine simultaneously.
Claims (4)
1. a servo motor rotor structure, is characterized in that, forms: rotor yoke primarily of with lower component; Magnet steel, stainless steel sleeve, the packing material between magnet steel and stainless steel sleeve.
2. servo motor rotor structure according to claim 1, is characterized in that: described rotor yoke is polygonized structure.
3. servo motor rotor structure according to claim 1, is characterized in that: the cylindrical of described magnet steel is off-centre operation structure, thus the interior round-formed point cantact of the cylindrical of magnet steel and stainless steel sleeve.
4. servo motor rotor structure according to claim 1, is characterized in that:
The space between magnet steel and stainless steel sleeve is filled up with packing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118956.1U CN204538839U (en) | 2015-02-28 | 2015-02-28 | A kind of servo motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118956.1U CN204538839U (en) | 2015-02-28 | 2015-02-28 | A kind of servo motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538839U true CN204538839U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118956.1U Active CN204538839U (en) | 2015-02-28 | 2015-02-28 | A kind of servo motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023425A (en) * | 2016-11-03 | 2018-05-11 | 天津康途科技有限公司 | A kind of elevator traction low-speed permanent-magnet electric motor with large torque |
| CN109768686A (en) * | 2018-12-28 | 2019-05-17 | 深圳市优必选科技有限公司 | Permanent magnet synchronous motor |
-
2015
- 2015-02-28 CN CN201520118956.1U patent/CN204538839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023425A (en) * | 2016-11-03 | 2018-05-11 | 天津康途科技有限公司 | A kind of elevator traction low-speed permanent-magnet electric motor with large torque |
| CN109768686A (en) * | 2018-12-28 | 2019-05-17 | 深圳市优必选科技有限公司 | Permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |