CN2064437U - Braker with cut-off locking function - Google Patents
Braker with cut-off locking function Download PDFInfo
- Publication number
- CN2064437U CN2064437U CN 90202191 CN90202191U CN2064437U CN 2064437 U CN2064437 U CN 2064437U CN 90202191 CN90202191 CN 90202191 CN 90202191 U CN90202191 U CN 90202191U CN 2064437 U CN2064437 U CN 2064437U
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- magnetic
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- magnetic steel
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Abstract
The utility model provides a baker with a cut-off locking function, which is provided with permanent magnetism magnetic steel. A magnetic field generated by the permanent magnetism magnetic steel is designed into a main and an auxiliary magnetic circuits. In utility model, the magnetic resistance is changed by the rational structure design of the main and the auxiliary magnetic circuits, and the ampere-turn of a demagnetizing coil is small. Thus, the utility model has the advantages of small size, simple structure and large power output, and is used in electromechanical integrative products such as machine tools, machinery humans, radars, special motors, etc., and the structures are compact.
Description
The utility model is a kind of break of the work of cutting off the power supply, and is used for robot, and there are effects such as braking, protection, locking in fields such as lathe, radar, specific type of electric machine, also can be used as clutch and uses, and plays switching action.
Break commonly used at present divides from working method energising work and outage work two classes, and break described in the utility model is worked under powering-off state.Traditional outage lockup brake all is that the elastic force by spring carries out work, because the restriction of mounting point and size, working spring can be very not big, so it is less to exert oneself, and structure is complicated, and when not working, the electromagnetic force of electromagnetic coil must could be thrown off friction plate greater than the elastic force of spring, therefore the Number of ampere turns of electromagnetic coil is all bigger, heating is many, and volume is big, it is little to exert oneself, complex structure, operating temperature height, and its application area is restricted.
Task of the present utility model is to propose a kind of break, adapts in installation dimension to be restricted and the occasion of exerting oneself and can meet the demands, and adopts electromagnetic force can overcome camber of spring and aging shortcoming, and is simple in structure, enlarges application area.
The utility model principle is to replace spring promptly to carry out work with electromagnetic force with Permanent Magnet Steel, on the basis of traditional break, increase an auxiliary magnetic circuit, when break outage work, auxiliary magnetic circuit is inoperative, and magnetic flux is all walked main magnetic circuit, because the main magnetic circuit magnetic resistance is very little, magnetic flux is bigger so effectively work, and it is also bigger to exert oneself.When break is not worked, degaussing coil energising work, auxiliary magnetic circuit becomes the main closed magnetic circuit of magnetic flux, and the main magnetic circuit magnetic flux is approximately zero.Reasonably design the structure of main magnetic circuit and auxiliary magnetic circuit, change its magnetic resistance, design the Number of ampere turns of degaussing coil to such an extent that can meet the demands again very for a short time.
The utility model volume is little, and is simple in structure, and it is big to exert oneself, and particularly is applied in the electromechanical integrated product, makes product structure more compact.
Accompanying drawing: for improving the structure diagram of back outage service brake.
Accompanying drawings embodiment of the present utility model, replace spring with permanent magnetic steel, promptly replace elastic force work with electromagnetic force, when break cuts off the power supply, degaussing coil 2 is inoperative, the electromagnetic force that permanent magnetic steel produces is with friction plate 7 adhesives, and with friction disk 6,3 frictions of outer iron yoke 10 and interior iron yoke produce frictional force and play braking action, at this moment there are two feasible paths in the magnetic field that produces of permanent magnetic steel, main magnetic circuit 12 and auxiliary magnetic circuit 11, the magnetic resistance of auxiliary magnetic circuit is much larger than the magnetic resistance of main magnetic circuit at this moment, so magnetic flux is all walked main magnetic circuit, magnetic is close higher, electromagnetic force, torque is bigger.And the big advantage of exerting oneself behind the permanent magnetic steel employing new material Ne-Fe-B is more outstanding.When break passes to direct current, the magnetic field that degaussing coil produces is just in time opposite with the magnetic field of magnet steel in main magnetic circuit, have only when main field is zero by force, friction plate 7 is thrown off by spring sheet 9 and friction disk 6, working gas gap 8 moves on between friction plate 7 and the friction disk 6, and break does not produce braking moment.Change the scope that the size of working gas gap 8 magnetic force can Control work voltage.
Claims (3)
1, a kind of lockup brake of the work of cutting off the power supply is characterized in that it is by the permanent magnetic steel that produces magnetic force, and degaussing coil, spring sheet, friction disk, interior iron yoke, outer iron yoke are formed.
2, break according to claim 1 is characterized in that the material that permanent magnetic steel adopts is Ne-Fe-B.
3, break according to claim 1 is characterized in that the Magnetic Field Design that is produced by permanent magnetic steel becomes main two magnetic circuits of paying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202191 CN2064437U (en) | 1990-03-03 | 1990-03-03 | Braker with cut-off locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202191 CN2064437U (en) | 1990-03-03 | 1990-03-03 | Braker with cut-off locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2064437U true CN2064437U (en) | 1990-10-24 |
Family
ID=4883645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90202191 Withdrawn CN2064437U (en) | 1990-03-03 | 1990-03-03 | Braker with cut-off locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2064437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060554A (en) * | 2017-06-09 | 2017-08-18 | 苏州安泰空气技术有限公司 | A kind of electronic front window loss protecting device of Biohazard Safety Equipment |
| CN109595278A (en) * | 2018-11-28 | 2019-04-09 | 西安航天动力测控技术研究所 | A kind of high speed sheet electromagnetic brake |
-
1990
- 1990-03-03 CN CN 90202191 patent/CN2064437U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060554A (en) * | 2017-06-09 | 2017-08-18 | 苏州安泰空气技术有限公司 | A kind of electronic front window loss protecting device of Biohazard Safety Equipment |
| CN107060554B (en) * | 2017-06-09 | 2019-01-01 | 苏州安泰空气技术有限公司 | A kind of electronic front window loss protecting device of Biohazard Safety Equipment |
| CN109595278A (en) * | 2018-11-28 | 2019-04-09 | 西安航天动力测控技术研究所 | A kind of high speed sheet electromagnetic brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |