CN2418615Y - Linear motor - Google Patents
Linear motor Download PDFInfo
- Publication number
- CN2418615Y CN2418615Y CN 00214402 CN00214402U CN2418615Y CN 2418615 Y CN2418615 Y CN 2418615Y CN 00214402 CN00214402 CN 00214402 CN 00214402 U CN00214402 U CN 00214402U CN 2418615 Y CN2418615 Y CN 2418615Y
- Authority
- CN
- China
- Prior art keywords
- coil
- permanent magnet
- mandrel
- casing
- shell
- 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
The utility model relates to a linear motor with a permanent magnetism structure. The utility model comprises a casing, wherein, a core axle, one end of which extends outwards, is arranged in the inner cavity of the casing; an inside magnetic seat fixed with the casing is sheathed on the core axle at the section positioned in the inner cavity of the casing; an inside permanent magnet ring is sheathed on the inside magnetic seat; the outsied of the inside permanent magnet ring is sheathed with a coil former which is ficxedly connected with the inner end of the core axle together; a coil is wound on the coil former. After the current of the coil is switched on, the coil and the core axle synchronously make a rectilinear movement under the action of electromagnetic force so as to increase on-load capability and widen the range of application.
Description
The utility model relates to a kind of linear electric motors of permanent-magnet structure.
General motor all is an electric rotary machine, and its basic principle is that hot-wire coil is stressed in magnetic field, produces moment, drives rotor rotation.Although electric rotary machine has obtained using widely in all trades and professions, need the field of moving linearly at some, for example control automatically, detection automatically, instrument and meter for automation etc. are inapplicable.Number of patent application is the background technology part of 85100292 specification, a kind of linear motor of permanent-magnet structure has been described, it is to put a long pipe type permanent magnet on the mandrel of motor, outside the long pipe type permanent magnet, put a movable column type coil again, when feeding direct current in the moving coil, under the effect of electromagnetic force, this coil is just along the axial moving linearly of mandrel.Because external loading is driven by coil, thereby the range of application of the linear motor of this permanent-magnet structure is very limited, thereby causes the narrow deficiency of range of application.
The purpose of this utility model provides the wideer linear electric motors of a kind of range of application.
This linear electric motors comprise shell, the overhanging mandrel of one end is housed in the inner chamber of shell, mandrel is positioned at and is set with on a section of shell inner cavity and magnetic support that shell is fixing, be set with the internal permanent magnet ring on the interior magnetic support, the internal permanent magnet ring is set with bobbin outward again, be tied with coil on the bobbin, its design feature is that the inner of bobbin and mandrel is fixed together.
In order to increase magnetic field intensity, above-mentioned linear electric motors also comprise the outer permanent magnet rings that is fixed on the inner surface of outer cover, coil the internal permanent magnet ring and outside in the gap between the permanent magnet rings.
As further improvement to above-mentioned linear electric motors, in the gap between mandrel and interior magnetic support the fairlead that is enclosed within on the mandrel is housed, ball is housed on the fairlead.
Linear electric motors described in the utility model, because coil is placed in the magnetic field that is formed by internal permanent magnet ring and outer permanent magnet rings, bobbin is fixedlyed connected with mandrel again, thereby when passing to electric current in the coil, coil just drives mandrel along guiding interplanting axial motion by bobbin under the effect of electromagnetic force, realization coil and mandrel are made axial linear movement synchronously, change sense of current, and the direction of motion also changes thereupon.From the above mentioned, this linear electric motors, not only coil can moving linearly, and mandrel also can moving linearly, in other words, not only coil can external load, and also can connect load on overhanging section of the mandrel, the user can select arbitrarily according to needs, thereby strengthened load-carrying ability, widened range of application.
Accompanying drawing shows the structural representation of this linear electric motors embodiment.
In the present embodiment, linear electric motors comprise shell 1, the outer permanent magnet rings 8 that is fixed on the inner surface is housed in the inner chamber of shell 1 and the overhanging mandrel of an end 2 is housed, mandrel 2 is positioned at and is set with on a section of shell 1 inner chamber and the fixing magnetic support 3 of an end of shell 1, the fairlead 9 that is enclosed within on the mandrel 2 is housed in the gap between interior magnetic support 3 and the mandrel 2, ball 10 is housed on the fairlead 9, on the interior magnetic support 3 internal permanent magnet ring 4 is housed, the internal permanent magnet ring 4 outer bobbins 5 that are set with again, be tied with coil 6 on the bobbin 5, coil 6 internal permanent magnet ring 4 and outside in the gap between the permanent magnet rings 8, bobbin 5 is fixed together by screw 7 with the inner of mandrel 2.
Claims (3)
1, a kind of linear electric motors, comprise shell (1), the overhanging mandrel of one end (2) is housed in the inner chamber of shell (1), mandrel (2) is positioned at and is set with on a section of shell (1) inner chamber and the fixing magnetic support (3) of shell (1), be set with internal permanent magnet ring (4) on the interior magnetic support (3), internal permanent magnet ring (4) is outer to be set with bobbin (5) again, is tied with coil (6) on the bobbin (5), it is characterized in that ring formation frame (5) and the inner of mandrel (2) are fixed together.
2, linear electric motors according to claim 1 is characterized in that also comprising the outer permanent magnet rings (8) that is fixed on shell (1) inner surface, and coil is positioned at the gap between internal permanent magnet ring (4) and the outer permanent magnet rings (8).
3, linear electric motors according to claim 1 is characterized in that the fairlead (9) that is enclosed within on the mandrel (2) is housed in the gap between mandrel (2) and interior magnetic support (3), and ball (10) is housed on the fairlead (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214402 CN2418615Y (en) | 2000-04-21 | 2000-04-21 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214402 CN2418615Y (en) | 2000-04-21 | 2000-04-21 | Linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418615Y true CN2418615Y (en) | 2001-02-07 |
Family
ID=33580508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214402 Expired - Fee Related CN2418615Y (en) | 2000-04-21 | 2000-04-21 | Linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418615Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187065A (en) * | 2018-09-14 | 2019-01-11 | 上海理工大学 | The full-automatic load machine of linear motor driving |
-
2000
- 2000-04-21 CN CN 00214402 patent/CN2418615Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187065A (en) * | 2018-09-14 | 2019-01-11 | 上海理工大学 | The full-automatic load machine of linear motor driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |