CN2790019Y - Electric machine with braking device - Google Patents
Electric machine with braking device Download PDFInfo
- Publication number
- CN2790019Y CN2790019Y CN 200520070533 CN200520070533U CN2790019Y CN 2790019 Y CN2790019 Y CN 2790019Y CN 200520070533 CN200520070533 CN 200520070533 CN 200520070533 U CN200520070533 U CN 200520070533U CN 2790019 Y CN2790019 Y CN 2790019Y
- Authority
- CN
- China
- Prior art keywords
- ring
- rotor
- connecting ring
- groove
- braking
- 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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- Braking Arrangements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a motor with a brake, which comprises a stator, a rotor, a front end cover, a rotor shaft and a brake ring, wherein the rotor shaft and the brake ring are fixed on an axial lead point of the rotor. A friction plate is arranged between the brake ring and the front end cover. A connecting ring is sheathed on the rotor shaft between the brake ring and the rotor. A spring is arranged between the connecting ring and the brake ring. One side facing the brake ring on the connecting ring is provided with a flute facing the brake ring. One side of the brake ring faceing the connecting ring is provided with a lug boss which is inserted in the flute. Because frictional force is transferred to the rotor shaft by the connecting ring, the abrasion of the rotor is small. The utility model can prolong the service life of the motor.
Description
Technical field
The utility model relates to a kind of motor that has brake apparatus.
Background technology
In the prior art, EP0360779 discloses a kind of brake apparatus of motor, the brake body that has a jar shape, its free edge is towards the short-circuited conducting sleeve of rotor, on the boss that short-circuited conducting sleeve is given prominence to, has an inclined-plane at each at least, on short-circuited conducting sleeve, have the groove on band inclined-plane, by the braking of cooperating behind the realization power cut-off of boss and groove to motor.But,, easily influence the useful life of this motor so this brake apparatus is more serious to epitrochanterian short-circuited conducting sleeve attrition when each braking because braking is directly realized to rotor by brake body chucking short-circuited conducting sleeve in the outage back.
Summary of the invention
The utility model purpose provides a kind of motor that has brake apparatus, and the wearing and tearing to rotor when its brake apparatus is braked rotor are less.
For achieving the above object, the technical solution adopted in the utility model is: a kind of motor that has brake apparatus, comprise stator, rotor, the front end housing that is fixedly connected with described stator, be fixed on the armature spindle at described epitrochanterian axial line place, be arranged at described epitrochanterian braking ring axially slidably, be provided with friction plate between described braking ring and the front end housing, between braking ring and rotor, be with connecting ring on the described armature spindle, be provided with spring between described connecting ring and the braking ring, side towards braking ring of described connecting ring has the groove of oral area towards braking ring, at least one trough rim of this groove is a wedge shape plate, side towards connecting ring of described braking ring is provided with boss, a boss side adjacent with groove of described boss is wedge shape plate, and described boss is inserted in the groove.
Because technique scheme utilization, the utility model compared with prior art has following advantage: be with connecting ring on armature spindle, when power cut-off and after magnetic field disappears, braking ring is subjected to the active force of spring and moves towards front end housing, make braking ring contact with friction plate, the hypotenuse of the groove on the hypotenuse by the boss on the braking ring and the connecting ring cooperates again, makes braking ring further move towards the direction of front end housing, thereby armature spindle is braked, so that rotor stops operating.Owing to by connecting ring frictional force is delivered on the armature spindle, therefore only braking ring and connecting ring can be worn, and make the life-span of rotor be improved.
Description of drawings
Accompanying drawing 1 is the main cutaway view of the utility model when braking ring is braked;
Accompanying drawing 2 is the main cutaway view of the utility model when braking ring is released;
Accompanying drawing 3 is the stereogram of connecting ring;
Accompanying drawing 4 is the main cutaway view Amplified image of connecting ring;
Accompanying drawing 5 is the stereogram of braking ring;
Accompanying drawing 6 is the main cutaway view Amplified image of braking ring;
Wherein: 1, front end housing; 2, rear end cap; 3, stator; 4, rotor; 5, armature spindle; 6, friction plate; 7, braking ring; 8, connecting ring; 9, groove; 10, boss; 11, spring; 12, tooth; 13, spline groove; 14, hypotenuse; 15, hypotenuse;
Embodiment
Referring to accompanying drawing 1-accompanying drawing 6, a kind of motor that has brake apparatus, front end housing 1, the armature spindle 5 that is fixed on the axial line place on the described rotor 4 that comprises stator 3, rotor 4, is fixedly connected with described stator 3, the braking ring 7 that is arranged at described rotor 4 front sides (left side of accompanying drawing 1), be provided with friction plate 6 between described braking ring 7 and the front end housing 1, described friction plate 6 is fixed on the front end housing 1.Between braking ring 7 and rotor 4, be with connecting ring 8 on the described armature spindle 5, described connecting ring 8 is fixedly connected with armature spindle 5, the fixed connection structure of present embodiment is to have a plurality of teeth 12 along its radial protrusion on the external peripheral surface of described connecting ring 8, the inboard of described rotor 4 has a plurality of spline grooves 13 separately, described a plurality of tooth 12 is inserted in respectively in each spline groove 13, makes described connecting ring 8 not rotate relative to rotor 4.Be provided with spring 11 between described connecting ring 8 and the braking ring 7, side towards braking ring 7 of described connecting ring 8 has the groove 9 of oral area towards braking ring 7, at least one trough rim of this groove 9 is a wedge shape plate 14, side towards connecting ring 8 of described braking ring 7 is provided with boss 10, a boss side adjacent with groove 9 of described boss 10 is wedge shape plate 15, and described boss 10 is inserted in the groove 9.
The power supply energising makes motor get electric back and produces rotating magnetic field, most of flux of magnetic induction rotor 4 produces torque, make rotor 4 rotate, and form the loop with braking ring 7 after having the part magnetic flux to change axial magnetic flux in addition, make axial magnetic flux produce axial attraction to braking ring 7, braking ring 7 promptly breaks away from the friction plate 6 on the front end housing 1 and compresses spring 11 and towards the motion of the direction at connecting ring 8 places, rotor 4 promptly begins rotation; Power cut-off makes after the motor dead electricity, axial magnetic attraction disappears, braking ring 7 is subjected to the active force of spring 11 and the direction that tends to front end housing 1 is moved, and contact with friction plate 6 on the front end housing 1 and produce moment of friction, the cooperation of the hypotenuse that the sidewall by boss 10 matches with the cell wall of groove 9, make braking ring 7 further produce axial moving, make then that described front end housing 1 and braking ring 7 are further compacted and rapidly rotor 4 is braked.
Claims (4)
1, a kind of motor that has brake apparatus, comprise stator [3], rotor [4], the front end housing [1] that is fixedly connected with described stator [3], be fixed on the armature spindle [5] at the axial line place on the described rotor [4], be arranged at the braking ring [7] on the described rotor [4] axially slidably, be provided with friction plate [6] between described braking ring [7] and the front end housing [1], it is characterized in that: described armature spindle [5] is gone up and be with connecting ring [8] between braking ring [7] and rotor [4], be provided with spring [11] between described connecting ring [8] and the braking ring [7], side towards braking ring [7] of described connecting ring [8] has the groove [9] of oral area towards braking ring [7], at least one trough rim of this groove [9] is wedge shape plate [14], side towards connecting ring [8] of described braking ring [7] is provided with boss [10], a boss side adjacent with groove [9] of described boss [10] is wedge shape plate [15], and described boss [10] is inserted in the groove [9].
2, the motor that has brake apparatus according to claim 1 is characterized in that: described connecting ring [8] is fixedly connected with armature spindle [5].
3, the motor that has brake apparatus according to claim 1, it is characterized in that: have a plurality of teeth [12] on the external peripheral surface of described connecting ring [8] along its radial protrusion, have a plurality of spline grooves [13] separately on the described rotor [4], described a plurality of teeth [12] are inserted in respectively in described each spline groove [13].
4, the motor that has brake apparatus according to claim 1 is characterized in that: described friction plate [6] is fixed on the front end housing [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070533 CN2790019Y (en) | 2005-04-04 | 2005-04-04 | Electric machine with braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070533 CN2790019Y (en) | 2005-04-04 | 2005-04-04 | Electric machine with braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2790019Y true CN2790019Y (en) | 2006-06-21 |
Family
ID=36790351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520070533 Expired - Fee Related CN2790019Y (en) | 2005-04-04 | 2005-04-04 | Electric machine with braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2790019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664485A (en) * | 2012-04-24 | 2012-09-12 | 宁波百型机械科技有限公司 | Braking structure for motor |
-
2005
- 2005-04-04 CN CN 200520070533 patent/CN2790019Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664485A (en) * | 2012-04-24 | 2012-09-12 | 宁波百型机械科技有限公司 | Braking structure for motor |
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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 |