CN208835919U - A kind of rotor structure for permanent magnet motor - Google Patents
A kind of rotor structure for permanent magnet motor Download PDFInfo
- Publication number
- CN208835919U CN208835919U CN201821657045.6U CN201821657045U CN208835919U CN 208835919 U CN208835919 U CN 208835919U CN 201821657045 U CN201821657045 U CN 201821657045U CN 208835919 U CN208835919 U CN 208835919U
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- CN
- China
- Prior art keywords
- armature spindle
- lead screw
- retaining ring
- rotor
- permanent magnet
- Prior art date
- 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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Abstract
A kind of rotor structure for permanent magnet motor of the utility model is related to motor field, more particularly to a kind of rotor structure for permanent magnet motor, including rotor rim, permanent magnetic steel and armature spindle, the permanent magnetic steel is fixed in rotor rim, the rotor rim is fixed on armature spindle, the central axis of the rotation axis of rotor rim and armature spindle is on the same line, a lead screw is also connected on one end of the armature spindle, the lead screw includes polished rod region and threaded portion, external screw thread is provided in threaded portion, the external screw thread is trapezoidal thread；The utility model realizes the function of converting motor rotary motion to external agency's linear motion, and significantly reduces armature spindle and lead screw integrated design bring difficulty of processing, improves production efficiency.
Description
Technical field
The utility model relates to motor fields, and in particular to a kind of rotor structure for permanent magnet motor.
Background technique
Magneto is that a kind of a kind of motor for establishing magnetic field with permanent magnet does not need the external world compared with electro-magnetic motor
Energy can maintain its magnetic field, have structure simple, and small, high-efficient and motor is lost in reliable for operation, small in size, light weight
Shape and size versatile and flexible can wait remarkable advantages, therefore application range is extremely extensive, almost spreads aerospace, national defence, work
The every field of agricultural production and daily life.
Magneto is the common actuator of various servo mechanisms.In order to meet growing application requirement, servo
The development of structure develops towards small size, big power to weight ratio, quick response etc..Therefore, integrated design theory is gradually applied to
It is integrated to improve in various servo mechanisms, and reduce volume, wherein machine shaft and screw mechanism integrated design are wherein
One important developing direction.But in the longer situation of servo mechanism stroke, lead screw draw ratio is big, takes machine shaft at this time
Difficulty of processing can be increased exponentially with screw mechanism integrated design, causes production efficiency low.
Utility model content
To solve the above-mentioned problems, it is simple to provide a kind of structure for the utility model, can be realized and turns motor rotary motion
External agency's linear motion is turned to, and significantly reduces armature spindle and lead screw integrated design bring difficulty of processing, improves life
Produce a kind of rotor structure for permanent magnet motor of efficiency.
A kind of rotor structure for permanent magnet motor of the utility model, including rotor rim, permanent magnetic steel and armature spindle, the permanent magnetism
Magnet steel is fixed in rotor rim, and the rotor rim is fixed on armature spindle, the rotation axis of rotor rim with
The central axis of armature spindle on the same line, is also connected with a lead screw on one end of the armature spindle, the lead screw includes light
Bar region and threaded portion, external screw thread is provided in threaded portion, and the external screw thread is trapezoidal thread；
One end that lead screw is connected with armature spindle is polished end, and the other end is the end of thread, and one end of the armature spindle passes through week
It is connected to position limiting structure and locking device with the polished end of lead screw, the other end of armature spindle is hollow setting.
Preferably, circumferential position limiting structure includes the connection blind hole being arranged in armature spindle polished end, in the connection blind hole
It is provided with a convex block, the convex block is prominent towards lead screw, is provided with the groove engaged with convex block, lead screw on one end of the lead screw
Polished end protrude into connection blind hole, convex block engages with groove.
Preferably, convex block is cuboid convex block.
Or preferably, locking device includes the first retaining ring and the second retaining ring being socketed in lead screw polished end, institute
It states and is provided with external screw thread on the outer circumference surface of the first retaining ring and the second retaining ring, be provided with interior spiral shell in the connection blind hole
Line, the external screw thread in the first retaining ring and the second retaining ring are meshed with the internal screw thread connecting in blind hole.
Preferably, it is provided with a shaft shoulder on armature spindle, an axle sleeve, the rotor are fixedly installed in the lead screw polished end
Magnetic yoke is arranged in the region between the shaft shoulder and axle sleeve, and one end and the shaft shoulder of rotor rim are fixedly linked, and the other end and axle sleeve are solid
It is fixed to be connected.
Preferably, an annular convex platform is provided in lead screw polished end, first retaining ring and the setting of the second retaining ring exist
On lead screw between annular convex platform and axle sleeve, and an end face of the first retaining ring offsets with annular convex platform, other end and second
One end face of retaining ring offsets, another end face and the axle sleeve of the second retaining ring offset.
Preferably, a sheath is also socketed with outside permanent magnetic steel, in the central axis and armature spindle and lead screw of the sheath
Mandrel line is on the same straight line.
Preferably, it is evenly arranged with helicla flute on the inner surface of sheath, to increase roughness, increases sheath and permanent-magnet magnetic
Adhesive strength between steel.
Preferably, the both ends end face of sheath and permanent magnetic steel and rotor rim is in same vertical plane, two vertical planes
Be parallel to each other, and with the central axis upright of armature spindle.
Preferably, permanent magnetic steel includes several arcuate permanent magnetic magnetic links, week of the arcuate permanent magnetic magnetic links along rotor rim
To being uniformly arranged, and the magnetic pole of two neighboring arcuate permanent magnetic magnetic links is opposite.
The utility model realizes the function of converting motor rotary motion to external agency's linear motion, and greatly reduces
Armature spindle and lead screw integrated design bring difficulty of processing, improve production efficiency.
The utility model uses two-stage retaining ring, not only ensure that the axial restraint of armature spindle and lead screw, but also realize locking
Function improves device reliability.
The utility model lead screw uses trapezoidal thread, increases and axially withstands forces and realize self-locking function.
The utility model rotor shaft part hollow design, reduces rotary inertia, improves the response speed of magneto.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the connection relationship diagram of permanent magnetic steel and rotor rim.
Appended drawing reference: 1- sheath, 2- permanent magnetic steel, 3- arcuate permanent magnetic magnetic links, 4- rotor rim, 5- armature spindle, 6-
One retaining ring, the second retaining ring of 7-, 8- axle sleeve, 9- lead screw.
Specific embodiment
A kind of rotor structure for permanent magnet motor of the utility model, including rotor rim 4, permanent magnetic steel 2 and armature spindle 5, it is described
Permanent magnetic steel 2 is fixed in rotor rim 4, and the rotor rim 4 is fixed on armature spindle 5, the rotation of rotor rim 4
The central axis of shaft axis and armature spindle 5 on the same line, is also connected with a lead screw 9 on one end of the armature spindle 5, described
Lead screw 9 includes polished rod region and threaded portion, and external screw thread is provided in threaded portion, and the external screw thread is trapezoidal thread；
One end that lead screw 9 is connected with armature spindle 5 is polished end, and the other end is the end of thread, and one end of the armature spindle 5 passes through
Circumferential position limiting structure and locking device are connected with the polished end of lead screw 9, and the other end of armature spindle 5 is hollow setting.
Circumferential position limiting structure includes the connection blind hole being arranged in 5 polished end of armature spindle, is provided in the connection blind hole
One convex block, the convex block is prominent towards lead screw 9, is provided with the groove engaged with convex block on one end of the lead screw 9, lead screw 9
Polished end protrudes into connection blind hole, and convex block engages with groove.
Convex block is cuboid convex block.
Locking device includes the first retaining ring 6 and the second retaining ring 7 being socketed in 9 polished end of lead screw, first lock
It is provided with external screw thread on tight ring 6 and the outer circumference surface of the second retaining ring 7, is provided with internal screw thread in the connection blind hole, first
External screw thread in retaining ring 6 and the second retaining ring 7 is meshed with the internal screw thread connecting in blind hole.
It is provided with a shaft shoulder on armature spindle 5, is fixedly installed an axle sleeve 8, the rotor rim in 9 polished end of lead screw
4 are arranged in the region between the shaft shoulder and axle sleeve 8, and one end and the shaft shoulder of rotor rim 4 are fixedly linked, and the other end and axle sleeve 8 are solid
It is fixed to be connected, it can be fixedly linked by the way of cohering.
An annular convex platform is provided in 9 polished end of lead screw, first retaining ring 6 and the second retaining ring 7 are arranged in annular
On lead screw 9 between boss and axle sleeve 8, and an end face of the first retaining ring 6 offsets with annular convex platform, other end and the second lock
One end face of tight ring 7 offsets, another end face and the axle sleeve 8 of the second retaining ring 7 offset.
A sheath 1, the central axis and armature spindle 5 of the sheath 1 and the center of lead screw 9 are also socketed with outside permanent magnetic steel 2
Axis is on the same straight line.
Helicla flute is evenly arranged on the inner surface of sheath 1.
In same vertical plane, two vertical planes are mutual for the both ends end face of sheath 1 and permanent magnetic steel 2 and rotor rim 4
In parallel, and the central axis upright with armature spindle 5.
Permanent magnetic steel 2 includes several arcuate permanent magnetic magnetic links 3, and arcuate permanent magnetic magnetic links 3 are along the circumferential equal of rotor rim 4
Even setting, and the magnetic pole of two neighboring arcuate permanent magnetic magnetic links 3 is opposite.
In use, connecting external agency on the end of thread of lead screw 9, with the circular motion in motor stator magnetic field, make rotor
Magnet steel generates turning moment, and armature spindle 5 and lead screw 9 is driven to be rotated, then by the screw thread on lead screw 9, rotation is transported
Turn turns to the linear motion of external agency.
The utility model realizes the function of converting motor rotary motion to external agency's linear motion, and greatly reduces
Armature spindle 5 and lead screw 9 integrated design bring difficulty of processing, improves production efficiency.
The utility model uses two-stage retaining ring, not only ensure that the axial restraint of armature spindle 5 Yu lead screw 9, but also realize anti-
Loose function, improves device reliability.
The utility model lead screw 9 uses trapezoidal thread, increases and axially withstands forces and realize self-locking function.
The design of 5 part hollow of the utility model armature spindle, reduces rotary inertia, improves the response speed of magneto
Degree.
Claims (10)
1. a kind of rotor structure for permanent magnet motor, including rotor rim (4), permanent magnetic steel (2) and armature spindle (5), the permanent-magnet magnetic
Steel (2) is fixed on rotor rim (4), which is characterized in that and the rotor rim (4) is fixed on armature spindle (5),
The rotation axis of rotor rim (4) and the central axis of armature spindle (5) on the same line, on one end of the armature spindle (5)
It is also connected with a lead screw (9), the lead screw (9) includes polished rod region and threaded portion, and external screw thread, institute are provided in threaded portion
Stating external screw thread is trapezoidal thread；
One end that lead screw (9) is connected with armature spindle (5) is polished end, and the other end is the end of thread, and one end of the armature spindle (5) is logical
It crosses circumferential position limiting structure and locking device is connected with the polished end of lead screw (9), the other end of armature spindle (5) is hollow setting.
2. a kind of rotor structure for permanent magnet motor as described in claim 1, which is characterized in that the circumferential direction position limiting structure includes setting
Connection blind hole in armature spindle (5) polished end, is provided with a convex block in the connection blind hole, and the convex block is towards lead screw (9)
It is prominent, it is provided with the groove engaged with convex block on one end of the lead screw (9), the polished end of lead screw (9) protrudes into connection blind hole, convex
Block engages with groove.
3. a kind of rotor structure for permanent magnet motor as claimed in claim 2, which is characterized in that the convex block is cuboid convex block.
4. a kind of rotor structure for permanent magnet motor as described in Claims 2 or 3, which is characterized in that the locking device includes socket
The first retaining ring (6) and the second retaining ring (7) in lead screw (9) polished end, first retaining ring (6) and the second retaining ring
(7) it is provided with external screw thread on outer circumference surface, internal screw thread, the first retaining ring (6) and second are provided in the connection blind hole
External screw thread in retaining ring (7) is meshed with the internal screw thread connecting in blind hole.
5. a kind of rotor structure for permanent magnet motor as claimed in claim 4, which is characterized in that be provided with one on the armature spindle (5)
The shaft shoulder is fixedly installed an axle sleeve (8) in lead screw (9) polished end, and the rotor rim (4) is arranged in the shaft shoulder and axle sleeve
(8) in the region between, one end of rotor rim (4) is fixedly linked with the shaft shoulder, and the other end is fixedly linked with axle sleeve (8).
6. a kind of rotor structure for permanent magnet motor as claimed in claim 5, which is characterized in that be arranged in lead screw (9) polished end
There are an annular convex platform, the silk that first retaining ring (6) and the second retaining ring (7) are arranged between annular convex platform and axle sleeve (8)
On thick stick (9), and an end face of the first retaining ring (6) offsets with annular convex platform, an end of other end and the second retaining ring (7)
Face offsets, another end face and the axle sleeve (8) of the second retaining ring (7) offset.
7. a kind of rotor structure for permanent magnet motor as claimed in claim 6, which is characterized in that the permanent magnetic steel (2) is also socketed outside
Have a sheath (1), the central axis of the sheath (1) is with the central axis of armature spindle (5) and lead screw (9) in same straight line
On.
8. a kind of rotor structure for permanent magnet motor as claimed in claim 7, which is characterized in that on the inner surface of the sheath (1)
It is even to be provided with helicla flute.
9. a kind of rotor structure for permanent magnet motor as claimed in claim 8, which is characterized in that the sheath (1) and permanent magnetic steel (2)
And the both ends end face of rotor rim (4), in same vertical plane, two vertical planes are parallel to each other, and with armature spindle (5)
Central axis upright.
10. a kind of rotor structure for permanent magnet motor as claimed in claim 9, which is characterized in that the permanent magnetic steel (2) includes several
A arcuate permanent magnetic magnetic links (3), arcuate permanent magnetic magnetic links (3) are uniformly arranged along the circumferential direction of rotor rim (4), and two neighboring arc
The magnetic pole of shape permanent-magnet magnetic steel disc (3) is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657045.6U CN208835919U (en) | 2018-10-12 | 2018-10-12 | A kind of rotor structure for permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657045.6U CN208835919U (en) | 2018-10-12 | 2018-10-12 | A kind of rotor structure for permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835919U true CN208835919U (en) | 2019-05-07 |
Family
ID=66318136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821657045.6U Expired - Fee Related CN208835919U (en) | 2018-10-12 | 2018-10-12 | A kind of rotor structure for permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835919U (en) |
-
2018
- 2018-10-12 CN CN201821657045.6U patent/CN208835919U/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 |
Granted publication date: 20190507 Termination date: 20201012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |