CN201197096Y - Motor with braking device - Google Patents
Motor with braking device Download PDFInfo
- Publication number
- CN201197096Y CN201197096Y CNU200820116938XU CN200820116938U CN201197096Y CN 201197096 Y CN201197096 Y CN 201197096Y CN U200820116938X U CNU200820116938X U CN U200820116938XU CN 200820116938 U CN200820116938 U CN 200820116938U CN 201197096 Y CN201197096 Y CN 201197096Y
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- motor
- brake disc
- brake device
- rotor
- brake
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Abstract
The utility model relates to an electric motor with a brake device, which consists of a stator, a winding, a rotator and an end closure. The inside of the electric motor is provided with the brake device comprising a brake disc, magnets, a spring, wearing pieces and so on; the brake disc consists of a wearing ring, a bottom board, and an inclined plane lug; an aluminum ring of a cast aluminum electronic motor is provided with an inclined plane wedge block; the angle of the cast aluminum inclined wedge block is basically same as that of the inclined lug of the brake disc; the bottom board of the brake disc is connected with the magnets; the magnets are made of soft magnetic materials; the wearing ring of the brake disc is larger than the inner diameter of the stator so as to greatly improve the brake force; the brake disc is arranged in a space of the end part of the winding and keeps certain distance from the winding; and the brake disc is provided with a fan, thereby ensuring that the winding of the electric motor has good radiating.
Description
Technical field
The utility model relates to motor, particularly a kind of motor of band brake device, and braking rapidly stops operating the rotor of motor at short notice fully behind the dump of motor.The motor of a kind of band brake device of the present utility model 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 motor of band brake device CN2574292Y, brake disc is installed on rotor, and wearing piece is equipped with in the inboard of the end cap of electric machine casing, but spring clutch ground is pressed in brake disc on the wearing piece, when electrical power, produce magnetic field, brake disc is inhaled to rotor by the resistance that magnetic attraction overcomes spring, thereby brake disc and wearing piece break away from, and brake disc and rotor rotate together.When motor cut off the power supply, magnetic force disappeared, and brake disc produces braking force with wearing piece under spring action, and braking force is delivered to rotor by the wedge shape male and fomale(M﹠F) and makes motor braking.
The shortcoming of these several brake apparatus is that brake disc, magnetic guiding loop cover on rotor aluminium ring cylindrical, causes motor radiating bad, and the diameter of above brake apparatus brake disc can't satisfy the needs of braking in short-term all less than diameter of stator bore for the bigger motor of inertia.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, to provide a kind of brake disc excircle dimension not to be subjected to winding inner diameter to limit the motor that stopping power is good.
The technical scheme of the motor of a kind of band brake device of the utility model is: by stator, winding, rotor, end cap is formed motor, brake disc is arranged in the motor, inhale iron, the brake apparatus that spring and wearing piece etc. are formed, so-called brake disc has the friction circle, base plate, the inclined-plane projection is formed, 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 projection of brake disc is basic identical, the base plate of brake disc connects inhales iron, inhaling iron is to be made by soft magnetic material, the friction circle that it is characterized in that brake disc is greater than diameter of stator bore, space and winding that brake disc is contained in winding overhang keep certain space.
The motor of a kind of band brake device of the utility model, 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, and anti-hole of the other end and brake disc snap together, and also can and inhale iron being integral brake disc.
The motor of a kind of band brake device of the utility model, rotor aluminium ring inclined-plane wedge outer rim is radially extended and is become rotor fan, to improve the heat dispersion of rotor.
The motor of a kind of band brake device of the utility model, the motor housing of steel plate drawing can make the seat of electric motor end cap and installation wearing piece be made into one, and wearing piece is installed on the top plan of steel plate stretching end cap.
The motor of a kind of band brake device of the utility model, the hollow cylinder of brake disc is shaped on ventilating window, and the related fan of brake disc makes the motor windings heat radiation good.
The motor of a kind of band brake device of the utility model, brake disc is equipped with wearing piece, wearing piece and the friction braking of electric motor end cap top.
The motor of a kind of band brake device of the utility model, brake disc is made by engineering plastics, and the place's of the connecing face that has fan and silicon steel sheet has soft magnetic material.
Description of drawings
Fig. 1 is the electric motor structure schematic diagram of a kind of band brake device of the utility model;
Fig. 2 is the brake disc and the assembly schematic diagram of inhaling iron of the motor of a kind of band brake device of the utility model;
Fig. 3 is the hollow cylinder band fan of motor of a kind of band brake device of the utility model and the brake disc schematic diagram of ventilating window;
Fig. 4 is the brake disc schematic diagram of friction circle lower plane band fan of the motor of a kind of band brake device of the utility model;
Fig. 5 is the brake disc and the suction iron one schematic diagram of the motor of a kind of band brake device of the utility model;
Fig. 6 is the steel plate stretching end cap of motor of a kind of band brake device of the utility model and the assembly schematic diagram of wearing piece;
Fig. 7 is the rotor schematic diagram that the motor of a kind of band brake device of the utility model has wedge and fan;
Fig. 8 is the rotor end-face view of the motor of a kind of band brake device of the utility model;
Fig. 9 is the brake disc of friction circle lower plane band fan of motor of a kind of band brake device of the utility model and the electric machine structure schematic diagram that steel plate stretching end cap is combined into;
Figure 10 is that the wearing piece of the motor of a kind of band brake device of the utility model is contained in the structural representation on the brake disc;
Figure 11 is that the wearing piece of the motor of a kind of band brake device of the utility model is contained in the partial structurtes schematic diagram on the brake disc that has fan functionality;
Figure 12 is the whole reference-view of the brake disc that has fan of the motor of a kind of band brake device of the utility model;
Figure 13 is the whole reference-view that the motor of a kind of band brake device of the utility model has the brake disc other direction of fan.
Among the figure: (1) motor shaft, the end cap of (2) casting, (3) wearing piece, (4) brake disc, (4.1) friction circle, (4.2) hollow cylinder, (4.3) base plate, (4.4) strengthen circle, (4.5) inclined-plane projection, (4.6) fan of brake disc one, (4.7) ventilating window, (5) inhale iron, (6) spring, (7) rotor, (8) external fan, (9) flange of suction iron, (10) wedge, the fan that (11) wedge prolongs, (12) winding, (13) stator, (14) steel plate stretching end cap, (15) place the depression of wearing piece, (16) thermovent, (17) motor casing, (18) guide collar
Embodiment
Embodiment one: as Fig. 1, Fig. 2, Fig. 3, Fig. 7, shown in Figure 8, be by stator (13), rotor (7), composition such as end cap and brake apparatus, brake apparatus is by brake disc (4), inhale iron (5), spring (6), wearing piece compositions such as (3), so-called brake disc (4) is by steel plate stretch forming, friction circle (4.1) is arranged, hollow cylinder (4.2), base plate (4.3), base plate (4.3) is gone out inclined-plane projection (4.5), hollow cylinder (4.2) inwardly stamping-out is bent into ventilating window (4.7) and fan (4.6), friction circle (4.1) is greater than winding (12) internal diameter, rotates together at the end and the rotor (7) of winding (12).Suction iron (5) is the sheet iron drawing by soft magnetism; Inhale iron (5) one ends and have protruding rafter (9), the contact area of inhaling iron (5) and rotor (7) silicon steel sheet is increased, there is bigger suction in the magnetic field that the energising back produces to inhaling iron (5), and anti-hole of the other end and brake disc (4) snap together.Be shaped on inclined-plane wedge (10) on the rotor of cast aluminium (7) the aluminium ring, the inclined-plane projection of the angle of inclined-plane wedge (10) and brake disc (4) matches, inclined-plane wedge (10) the cylindrical extend radially of rotor aluminium ring becomes fan (11), makes the radiating effect of rotor (7) better.Brake disc (4) is formed by a sheet metal punching out, and cost reduces, and is fit to produce in enormous quantities.
Embodiment two: as Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, brake disc (4) is to be processed by swaging die, friction circle (4.1) lower plane has fan (4.6), hollow cylinder (4.2) has ventilating window (4.7), the material of brake disc (4) can be made with alloy material or nonmetallic materials, brake disc (4) is in the end of winding (12), fan (4.6) is cooled off winding preferably, can substitute external fan (8), the structure of inhaling iron (5) and rotor (7) aluminium ring is with embodiment one.Motor casing (17) is stretched by sheet metal and forms, and circumference and top have ventilation and heat mouth (16), and wearing piece (3) directly is contained in the depression (15) at stretching motor casing (17) top.
Embodiment three: as Figure 10, Figure 11, Figure 12, shown in Figure 13, brake disc (4) is to be formed by the engineering plastics integral molded plastic, and the A face is equipped with wearing piece (3), and wearing piece (3) can be annular or local; When outage, the inner plane of wearing piece (3) and end cap rubs and brakes, the feature of present embodiment is the one side of the position of wearing piece (3) by end cap, transfer to the brake disc (4) that rotates together with rotor simultaneously, make brake disc (4) when braking, directly not produce friction, heating reduces friction, so brake disc is injection molded by engineering plastics, and make fan (4.6) and guide collar (18) easily, the contact-making surface soft magnetic material of brake disc (4) and rotor silicon steel sheet, this soft magnetic material can be assemblied in plastics brake disc (4) and go up or be added in the plastics.
More than three embodiment produce magnetic field when electrical power, make and inhale iron (5) drive brake disc (4) suction from wearing piece (3), brake disc (4) and rotor (7) rotate together, during power failure because magnetic field disappears, brake disc (4) produces friction with wearing piece (3) binding face under spring (6) effect, under the effect of the inclined-plane wedge (10) of inclined-plane projection (4.5) and cast aluminium, make tighter that friction circle (4.1) and wearing piece (3) press, because friction circle (4.1) diameter increases, the friction that produces makes motor obtain braking in short-term apart from also increase thereupon; Because the friction loop diameter increases, and is contained in winding (12) end, makes wearing piece (3) be directly installed on the end cap top, saved the trouble that wearing piece (3) need add supporting structure in addition, the fan of brake disc (4.6) is cooled off motor preferably.
Claims (10)
1. the motor of a band brake device, by stator (13), winding (12), rotor (7), end cap is formed motor, brake disc (4) is arranged in the motor, inhale iron (5), the brake apparatus that spring (6) and wearing piece (3) are formed, brake disc has friction circle (4.1), base plate (4.3), inclined-plane projection (4.5), be shaped on inclined-plane wedge (10) on the rotor of cast aluminium (7) the aluminium ring, the angle of the angle of the inclined-plane wedge (10) of cast aluminium and the inclined-plane projection (4.5) of brake disc (4) is basic identical, the base plate (4.3) of brake disc (4) connects inhales iron (5), inhaling iron (5) is to be made by soft magnetic material, the friction circle (4.1) that it is characterized in that brake disc (4) is greater than stator (13) internal diameter, and friction circle (4.1) is in the space of winding (12) end.
2. the motor of a kind of band brake device as claimed in claim 1 is characterized in that an end of inhaling the close rotor (7) of iron (5) has protruding rafter (9).
3. the motor of a kind of band brake device as claimed in claim 1 is characterized in that inhaling iron (5) and brake disc (4) snaps together.
4. the motor of a kind of band brake device as claimed in claim 1 is characterized in that inhaling iron (5) and brake disc (4) is made into one.
5. as the motor of claim 1,2,3,4 described a kind of band brake devices, it is characterized in that inhaling iron (5) is by the low carbon steel plate drawing.
6. the motor of a kind of band brake device as claimed in claim 1, it is characterized in that rotor aluminium ring inclined-plane wedge (10) outer rim is radially extended becomes rotor fan (11).
7. the motor of a kind of band brake device as claimed in claim 1 is characterized in that the hollow cylinder (4.2) of brake disc (4) is shaped on ventilating window (4.7), the related fan of brake disc (4) (4.6).
8. the motor of a kind of band brake device as claimed in claim 1 is characterized in that wearing piece (3) is contained on the top plan of steel plate stretching end cap (14).
9. the motor of a kind of band brake device as claimed in claim 1 is characterized in that brake disc (4) is equipped with wearing piece (3), wearing piece (3) and the friction braking of electric motor end cap top.
10. the motor of a kind of band brake device as claimed in claim 9 is characterized in that brake disc (4) made by engineering plastics, and the contact-making surface that has fan (4.6) and silicon steel sheet has soft magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820116938XU CN201197096Y (en) | 2008-05-17 | 2008-05-17 | Motor with braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820116938XU CN201197096Y (en) | 2008-05-17 | 2008-05-17 | Motor with braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201197096Y true CN201197096Y (en) | 2009-02-18 |
Family
ID=40416724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820116938XU Expired - Fee Related CN201197096Y (en) | 2008-05-17 | 2008-05-17 | Motor with braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201197096Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674130A (en) * | 2012-05-31 | 2012-09-19 | 宁波欣达电梯配件厂 | Power-off braking mechanism for main brake of escalator |
-
2008
- 2008-05-17 CN CNU200820116938XU patent/CN201197096Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674130A (en) * | 2012-05-31 | 2012-09-19 | 宁波欣达电梯配件厂 | Power-off braking mechanism for main brake of escalator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20110517 |