CN1960134A - Asynchronous motor with braking equipment - Google Patents
Asynchronous motor with braking equipment Download PDFInfo
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- CN1960134A CN1960134A CN 200610125947 CN200610125947A CN1960134A CN 1960134 A CN1960134 A CN 1960134A CN 200610125947 CN200610125947 CN 200610125947 CN 200610125947 A CN200610125947 A CN 200610125947A CN 1960134 A CN1960134 A CN 1960134A
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- motor
- iron
- grinding disk
- brake device
- asynchronous motor
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Abstract
The motor consists of the stator winding, the rotator and the end cap. The brake in the motor consists of the friction disk, the attractive iron, the spring and the friction bar. The friction disk is shape-formed from a punched steel board. Several tilted protruding pieces are punched out on the plane of the friction disk. Several tilted cuneiform bars are made on the aluminum ring of the casting aluminum rotator. The angle of the tilted cuneiform bar on rotator and the angle of the tilted protruding piece on the friction disk are almost the same. The friction disk connects with the attractive iron, which is made of soft magnetic material. The special point is that there is a big heat distribution space between the attractive iron and the friction disk. This motor is mainly used in various garden electrical tools, e.g. the grass cutter, the branch disintegrator, etc.
Description
Technical field
The present invention relates to asynchronous motor, particularly the asynchronous motor of band brake device is braked rapidly behind the dump of motor, and the rotor of motor is stopped operating at short notice fully.The asynchronous motor of band brake device of the present invention is mainly used in all kinds of gardens electric tool, hay mover for example, branch crushing machine.
Background technology
Usually after the motor outage, because the effect of inertia motor need continue to rotate a period of time, as garden instruments such as hay movers, must stall in very short time, otherwise may make the operator bring injury, so brake all is housed in this motor to be braked, as EP0136282, each discloses a kind of asynchronous motor of band brake device CN2574292Y, frictional disk is installed on rotor, friction plate is equipped with in the inboard of the end cap of electric machine casing, but the spring clutch frictional disk is pressed on the friction plate, when electrical power, produce magnetic field, frictional disk is inhaled to rotor by the resistance that magnetic attraction overcomes spring, thereby frictional disk and friction plate break away from, and frictional disk and rotor rotate together.When motor cut off the power supply, magnetic force disappeared, and frictional disk produces braking force with friction plate under spring action, and braking force is delivered to rotor by the wedge shape male and fomale(M﹠F) and makes motor braking.
CN1510817A, CN1510818A are divided into magnetic guiding loop and two parts of brake body to grinding disk,
The shortcoming of these several brake apparatus is frictional disks, magnetic guiding loop covers on rotor aluminium ring cylindrical, cause motor radiating bad, and because the restriction of rotor aluminium ring excircle dimension, dish can only create friction with very thin soft magnetic material, so the magnetic field that is produced during electrical power is also less to the suction of grinding disk, so can only be with less spring, make braking force also less, be generally used for low-power machine, if more powerful motor needs two to load onto frictional disk, also have for grinding disk certain thickness is arranged, for a short time be directed at rotor aluminium loop resistance and become big and rotor aluminium ring changed, influence motor performance.
Summary of the invention
The objective of the invention is provides a kind of perfect heat-dissipating in order to overcome the shortcoming of prior art, and rotor aluminium ring excircle dimension is not subjected to brake body to limit the asynchronous motor of band brake device.
The technical scheme of the asynchronous motor of band brake device of the present invention is: the motor of being made up of stator winding, rotor, end cap etc., the brake apparatus of forming by grinding disk, suction iron, spring and wearing piece in the motor, it is characterized in that grinding disk can strike out the inclined-plane lug by non-soft magnetic material, the quantity of inclined-plane lug is 3 to 6 usually; Be shaped on the inclined-plane wedge on the rotor aluminium ring of cast aluminium, the angle of the angle of the inclined-plane wedge of cast aluminium and the inclined-plane lug of grinding disk is basic identical, grinding disk connects inhales iron, inhale iron by the soft magnetic material manufacturing, inhale the inboard of iron at rotor aluminium ring, suction iron is inhaled behind the electrical power can not influence the rotor heat radiation yet on the rotor silicon steel sheet, grinding disk can be made into plate shaped, leave open bigger axial heat-dissipating space between grinding disk and the rotor silicon steel sheet, under the situation that does not influence heat-dissipating space, grinding disk can strike out basin shape.
The asynchronous motor of band brake device of the present invention, suction iron are the sheet iron drawings by soft magnetism; Inhale iron one end and have protruding rafter, the contact area of inhaling iron and rotor silicon steel sheet is increased, there is bigger suction in the magnetic field that the energising back produces to inhaling iron.
The asynchronous motor of band brake device of the present invention, cast aluminium inclined-plane wedge outer rim extends to rotor fan, and the rotor heat dispersion is further improved.
The asynchronous motor of band brake device of the present invention, the motor housing of steel plate drawing, can make the seat of electric motor end cap and installation wearing piece be made into two parts, steel plate stretching end cap and steel plate are made the friction bar or plastics are made the friction bar, the friction bar of making has better manufacturability separately, can process the depression of placing wearing piece easily, the quantity of wearing piece is three circumference uniform distributions, it is steadily even to help friction, and steel plate friction bar and end cap are connected with methods such as tenon or screw, riveted joint, welding.
The asynchronous motor of band brake device of the present invention, grinding disk can and can carry out heat and get reason raising grinding disk intensity with non-soft magnetic material such as carbon steel or steel alloy; Owing to inhale the flange and the rotor silicon steel sheet of iron bigger contact-making surface is arranged, the suction that is produced behind the electrical power is also bigger, can select thicker spring for use, to improve stopping power; Solved in the prior art that grinding disk is local at least to be made by soft magnetic material, and cover aluminium ring cylindrical, cause air seal influence heat radiation, and the grinding disk of plate shaped or basin shape does not influence the diameter dimension of aluminium ring, it is little to solve aluminium ring car effectively, be directed at rotor aluminium loop resistance and become big, influence motor performance; The asynchronous motor of the disclosed a kind of band brake device of contrast CN2574292Y, the wedge-shaped surface of described attrition surface and braking is respectively on grinding disk and two parts of interior cover, when braking, can cause bigger impact torsion, because the attrition surface of grinding disk of the present invention and inclined-plane lug be all on same part, so grinding disk and bigger impact torsion does not take place when inhaling between the iron braking.
Description of drawings
Fig. 1 is the Induction Motor Structure schematic diagram of band brake device of the present invention;
Fig. 2 is the suction iron of asynchronous motor of band brake device of the present invention and the grinding disk combination assumption diagram of basin shape;
Fig. 3 is the suction iron and the grinding disk combination shaft side figure of the asynchronous motor of band brake device of the present invention;
Fig. 4 is the rotor shaft side figure that the asynchronous motor of band brake device of the present invention has wedge and fan;
Fig. 5 is the rotor end-face view of the asynchronous motor of band brake device of the present invention;
Fig. 6 is the rotor structure schematic diagram of the asynchronous motor of band brake device of the present invention;
Fig. 7 is the hay mover motor structure chart that a kind of outer cover of steel plate of the asynchronous motor of band brake device of the present invention has brake mechanism;
Fig. 8 is that the plastics friction bar axle of the asynchronous motor of band brake device of the present invention is surveyed schematic diagram;
Fig. 9 is a kind of friction bar shaft side figure of steel plate drawing of the asynchronous motor of band brake device of the present invention;
Figure 10 is the hay mover motor partial structurtes schematic diagram that the asynchronous motor of band brake device of the present invention has the bar that rubs;
Embodiment
Shown in Fig. 1-5, be by stator (13), rotor (7), with compositions such as casting end cap (2) and brake apparatus, brake apparatus is by grinding disk (4), spring (6) and wearing piece compositions such as (3), grinding disk is gone out inclined-plane wedge shaped lug (8), be shaped on inclined-plane wedge (10) on the rotor of cast aluminium (7) the aluminium ring, the inclined-plane lug (8) of the angle of inclined-plane wedge (10) and grinding disk (4) matches, grinding disk (4) connects inhales iron (5), inhaling iron (5) is to be stamped to form by the soft magnetism low-carbon steel material, periphery has protruding rafter (9) with the contact-making surface of increase with the rotor silicon steel sheet, anti-hole of the other end and frictional disk (4) snap together, spring (6) is placed on to inhale to it is characterized in that inhaling in the iron (5) open heat-dissipating space (H) between iron and the grinding disk, do not influence the diameter dimension of rotor aluminium ring.
When electrical power produces magnetic field, make and inhale iron (5) drive grinding disk (4) suction from wearing piece (3), grinding disk (4) and rotor rotate together, during power failure because magnetic field disappears, grinding disk under spring action (4) produces frictional force with wearing piece (3) binding face, under the effect of the inclined-plane wedge (10) of inclined-plane lug (8) and cast aluminium, make tighter that grinding disk (4) and wearing piece (3) press, make the quick stall of motor.
As Fig. 4, shown in Figure 5, inclined-plane lozenges (10) the cylindrical extend radially of rotor aluminium ring becomes fan, makes the radiating effect of rotor (7) better.
The grinding disk of the asynchronous motor of band brake device of the present invention (4) can be made into plate shaped, also can strike out basin shape such as Fig. 2, Fig. 3, grinding disk (4) can be selected the higher carbon steel of intensity for use by non-soft magnetic material, alloy steel material, and can heat-treat, owing to inhale the flange (9) and the rotor silicon steel sheet of iron bigger contact-making surface is arranged, the suction that is produced behind the electrical power is also bigger, can select thicker spring (6) for use, to improve stopping power, and solved that grinding disk in the prior art (4) is local at least to be made by soft magnetic material, and cover aluminium ring cylindrical, cause air seal influence heat radiation, and the grinding disk (4) of plate shaped or basin shape do not influence the diameter dimension of aluminium ring, it is little to solve aluminium ring car effectively, be directed at rotor aluminium loop resistance and fall greatly, influence the technical problem of motor performance.
Shown in Fig. 7-10, the seat of the shell of steel plate drawing and installation wearing piece is made into two parts, friction bar (16) made by steel plate stretching end cap (17) and steel plate or plastics are made friction bar (18), the friction bar of making has better manufacturability separately, can process the depression of placing wearing piece easily, the quantity of wearing piece is three circumference uniform distributions, and it is steadily even to help friction, steel plate friction bar and end cap feather joint.
Claims (8)
1, the asynchronous motor of band brake device, by stator (13) winding (12), rotor (7), end cap (2) is formed motor, grinding disk (4) is arranged in the motor, inhale iron (5), the brake apparatus that spring (6) and wearing piece (3) are formed, grinding disk (4) is by the steel plate drawing, go out inclined convex sheet (8) on its plane, be shaped on inclined-plane wedge (10) on the rotor aluminium ring of cast aluminium, the angle of the angle of the inclined-plane wedge (10) of cast aluminium and the inclined-plane lug (8) of grinding disk is basic identical, grinding disk (4) connects inhales iron (5), inhaling iron (5) is to be made by soft magnetic material, and it is characterized in that inhaling has open heat-dissipating space (H) between iron and the grinding disk.
2, the asynchronous motor of band brake device as claimed in claim 1 is characterized in that an end of inhaling the close rotor of iron (5) has protruding rafter (9).
3, the asynchronous motor of band brake device as claimed in claim 1 is characterized in that inhaling the anti-hole of iron (5) and grinding disk (4) snaps together.
4, the asynchronous motor of band brake device as claimed in claim 1, it is characterized in that inhaling iron (5) is by the low carbon steel plate drawing.
5, the asynchronous motor of band brake device as claimed in claim 1 is characterized in that it is rotor fan (11) that cast aluminium inclined-plane wedge (10) outer rim is radially extended long.
6, the part that axially exceeds of the cramp of motor as claimed in claim 1 (14) is in the groove (5) of end cap (2), make the assembling axiality of motor improve brake apparatus, it is characterized in that the end cap (2) and the feather joint of wearing piece (3) seat of steel plate drawing.
7, the asynchronous motor of band brake device as claimed in claim 1 is characterized in that wearing piece (3) seat has three depressions (20) of placing wearing piece (3), is placed with a wearing piece in each depression.
8, the asynchronous motor of band brake device as claimed in claim 1 is characterized in that grinding disk (4) is a basin shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101259470A CN100544164C (en) | 2005-11-01 | 2006-08-22 | The asynchronous motor of band brake device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520128889 | 2005-11-01 | ||
| CN200520128889.8 | 2005-11-01 | ||
| CNB2006101259470A CN100544164C (en) | 2005-11-01 | 2006-08-22 | The asynchronous motor of band brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960134A true CN1960134A (en) | 2007-05-09 |
| CN100544164C CN100544164C (en) | 2009-09-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101259470A Active CN100544164C (en) | 2005-11-01 | 2006-08-22 | The asynchronous motor of band brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100544164C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775439A (en) * | 2018-08-30 | 2018-11-09 | 鞍山电磁阀有限责任公司 | Electric controller and valve |
| CN109995187A (en) * | 2019-04-16 | 2019-07-09 | 潍坊科技学院 | A kind of digital controlled steel hoop bending machine motor |
| CN112421922A (en) * | 2020-12-08 | 2021-02-26 | 陕西航天时代导航设备有限公司 | Limited-angle motor |
| CN114142632A (en) * | 2021-12-07 | 2022-03-04 | 江苏集萃智能制造技术研究所有限公司 | Large-torque low-temperature-rise brushless motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL82685A0 (en) * | 1987-05-27 | 1987-11-30 | Manuel M Werber | Improvement in electric motors |
-
2006
- 2006-08-22 CN CNB2006101259470A patent/CN100544164C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775439A (en) * | 2018-08-30 | 2018-11-09 | 鞍山电磁阀有限责任公司 | Electric controller and valve |
| CN109995187A (en) * | 2019-04-16 | 2019-07-09 | 潍坊科技学院 | A kind of digital controlled steel hoop bending machine motor |
| CN109995187B (en) * | 2019-04-16 | 2020-05-12 | 潍坊科技学院 | Motor of numerical control steel bar hoop bending machine |
| CN112421922A (en) * | 2020-12-08 | 2021-02-26 | 陕西航天时代导航设备有限公司 | Limited-angle motor |
| CN114142632A (en) * | 2021-12-07 | 2022-03-04 | 江苏集萃智能制造技术研究所有限公司 | Large-torque low-temperature-rise brushless motor |
| CN114142632B (en) * | 2021-12-07 | 2023-09-22 | 江苏集萃智能制造技术研究所有限公司 | Large-torque low-temperature-rise brushless motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100544164C (en) | 2009-09-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070509 Assignee: Zhejiang Fordy Machinery Co., Ltd. Assignor: Wu Weiguo Contract record no.: 2010330000240 Denomination of invention: Asynchronous motor with braking equipment Granted publication date: 20090923 License type: Exclusive License Record date: 20100310 |
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG FORDY MACHINERY CO., LTD. Free format text: FORMER OWNER: WU WEIGUO Effective date: 20120420 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120420 Address after: Taizhou City, Zhejiang province 318058 Luqiao Jinqing Industrial Zone Patentee after: Zhejiang Fordy Machinery Co., Ltd. Address before: Jinqing Luqiao Ring Road Taizhou city Zhejiang province 318058 No. 288 Zhejiang Fudi Machinery Co. Ltd. Patentee before: Wu Weiguo |