CN104948615A - Vertical type magnetic powder brake - Google Patents
Vertical type magnetic powder brake Download PDFInfo
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- CN104948615A CN104948615A CN201510324893.XA CN201510324893A CN104948615A CN 104948615 A CN104948615 A CN 104948615A CN 201510324893 A CN201510324893 A CN 201510324893A CN 104948615 A CN104948615 A CN 104948615A
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- cavity
- magnetic pole
- rotor
- rotor body
- powder brake
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Abstract
The invention provides a vertical type magnetic powder brake, and relates to the field of electromechanical brakes. The vertical type magnetic powder brake comprises a rotor, an upper magnetic pole and a lower magnetic pole. The rotor comprises a rotor shaft and a rotor body fixed to the rotor shaft coaxially. The rotor body is in a circular step shape with the rotor as the axis. The upper magnetic pole and the lower magnetic pole are arranged in the rotor shaft in a sleeving mode. A first hollow cavity and a second hollow cavity are formed between the upper magnetic pole and the lower magnetic pole. The inner shape of the first hollow cavity is arranged to correspond to the shape of the rotor body. The rotor body is located in the first hollow cavity. Magnet powders are arranged in a gap between the first hollow cavity and the rotor body. The second hollow cavity is an annular hollow cavity located outside the first hollow cavity. A field coil is arranged in the second hollow cavity. The vertical type magnetic powder brake has the advantages that the structure is scientific and simple, the magnetic powders do not enter a bearing easily, the vertical type magnetic powder brake can be used for the installation in the vertical direction, and the service life is prolonged.
Description
Technical field
The present invention relates to dynamo-electric brake field, particularly relate to a kind of magnetic powder brake.
Background technique
In the magnetic powder brake generally used at present, because of in structural design magnetic active chamber and rotor on same parallel surface, can only horizontally install, if need the vertical installation of vertical direction, then magnetic can fall into magnetic active chamber side, and easily entering bearing, moment properties is poor, fragile magnetic powder brake.Then along with magnetic powder brake extensive use in the industrial production,
Summary of the invention
Object of the present invention provides a kind of magnetic powder brake, and what solve in above-mentioned prior art problem is one or more.
The invention provides a kind of vertical type magnetic powder brake, comprising:
Rotor, the rotor body that rotor comprises rotor shaft and is coaxially fixed on rotor shaft, the convex annular mesa-shaped that rotor body is is the center of circle with rotor shaft axle center;
Upper magnetic pole, lower magnetic pole, upper and lower magnetic pole is set on rotor shaft, the first cavity and the second cavity is had between upper and lower magnetic pole, the setting corresponding with rotor body shape of first cavity inside shape, rotor body is positioned at the first cavity, and the first cavity and rotor body gap are provided with magnetic, and the second cavity is positioned at the ring cavity outside the first cavity, be provided with field coil in second cavity, between the first cavity and the second cavity, be provided with magnetism resistent ring.
Structure of the present invention is simple, and magnetic not easily enters bearing, can be used for the installation of vertical direction, adds the working life of magnetic powder brake.
In some embodiments, upper magnetic pole is provided with upper shaft hole, and lower magnetic pole is provided with lower shaft hole, is fixed in upper and lower axis hole after the bearing set of rotor shaft two ends; Seal ring is provided with between upper and lower magnetic pole and rotor shaft.Prevent the magnetic draining to bearing place from entering in running shaft further.
Accompanying drawing explanation
Fig. 1 is the sectional view of the vertical type magnetic powder brake of one embodiment of the present invention;
Fig. 2 is the A place enlarged view of the vertical type magnetic powder brake shown in Fig. 1.
Embodiment
Embodiment 1:
Below in conjunction with accompanying drawing, with regard to one embodiment of the invention, structure of the present invention and working method are described further.
As shown in Figure 1: a kind of vertical type magnetic powder brake that the invention provides, comprise rotor 1, rotor 1 comprises rotor shaft 11 and is coaxially fixed on the rotor body 12 on rotor shaft 11, the convex annular mesa-shaped that rotor body 12 is is the center of circle with rotor shaft 11 axle center, namely the shaft section of rotor body 12 is stepped, and the present embodiment is that step shape is described for the shaft section of rotor body 12.
This vertical type magnetic powder brake also comprises magnetic pole 2, lower magnetic pole 3, upper and lower magnetic pole 2,3 is set on rotor shaft 11, the first cavity 4 and the second cavity 5 is had between upper and lower magnetic pole 2,3, first cavity 4 interior shape and the corresponding setting of rotor body 12 shape, rotor body 12 is positioned at the first cavity 4, first cavity 4 is provided with magnetic 6 with rotor body 12 gap, and the second cavity 5 is positioned at the ring cavity outside the first cavity 4, is provided with field coil 7 in the second cavity 5.
Upper magnetic pole 2 is provided with upper shaft hole 21, and lower magnetic pole 3 is provided with lower shaft hole 31, is fixed in upper and lower axis hole 21,31 after the bearing set of rotor shaft 11 two ends.
Because rotor body 12 has one-level from rotor shaft 11 to the descending ladder at rotor body 12 edge, first cavity 4 interior shape has ladder with the corresponding setting of rotor body 12 shape, magnetic 6 is made not easily to fall in the bearing at rotor shaft 11 place, therefore can vertically install, and extend the working life of magnetic powder brake, improve the stability of magnetic powder brake.
Be provided with seal ring 9 between upper and lower magnetic pole 2,3 and rotor shaft 11, prevent the magnetic 6 draining to bearing place from entering in running shaft further.
As shown in Figure 2, during work, field coil 7 galvanization, namely operating magnetic field flux is produced in upper magnetic pole 2 and lower magnetic pole 3, magnetic 6 in first cavity 4 is that chain couples together along flow direction, form magnetic chain, magnetic powder brake by the lower end surface of now magnetic 6 and rotor body 12, upper magnetic pole 2, lower magnetic pole 3 upper-end surface between frictional force and magnetic chain between shearing resistance carry out transmitting torque, to reach the object of braking.
When described field coil 7 cuts off electric current, operating magnetic field flux disappears with the disappearance of exciting curent, magnetic 6 is in loose condition (of surface) under gravity, magnetic 6 drops on the upper-end surface of lower magnetic pole 3, because the first cavity 4 has the stairstepping of respective rotor body 12 setting, make magnetic 6 can not enter the first cavity 4 near rotor shaft 11 place, therefore magnetic 6 can not enter in bearing.
Regulate the size of exciting curent in field coil 7, can change the action effect of magnetic 6 transmitting torque, when exciting curent is larger, then the moment of torsion of magnetic 6 transmission is larger, larger to the frictional force of rotor body 12; When exciting curent is less, then the moment of torsion of magnetic 6 transmission is less, less to the frictional force of rotor body 12, thus can reach the object of brake rotors axle 11.
Embodiment 2:
In the present invention, convex annular mesa-shaped rotor body 12 also can adopt shaft section to be the shape of three grades of ladders.
Compare embodiment 1, this enforcement only has above-mentioned part to change, and same place is no longer repeated.
Embodiment 3:
In the present invention, convex annular mesa-shaped rotor body 12 also can adopt shaft section to have the shape of countless level ladder, that is, the shaft section of rotor body 12 is arcuation or slope shape.
Compare embodiment 1, this enforcement only has above-mentioned part to change, and same place is no longer repeated.
The above is only three kinds of mode of executions of the present invention; it should be pointed out that to those skilled in the art, without departing from the concept of the premise of the invention; can also make some similar distortion and improvement, these also should be considered as within protection scope of the present invention.
Claims (3)
1. vertical type magnetic powder brake, is characterized in that, comprising:
Rotor (1), described rotor comprises rotor shaft (11) and is coaxially fixed on the rotor body (12) on described rotor shaft (11), and described rotor body (12) take described rotor shaft (11) axle center as the convex annular mesa-shaped in the center of circle.
2. go up magnetic pole (2), lower magnetic pole (3), on described, lower magnetic pole is set on described rotor shaft (11), on described, lower magnetic pole (2, 3) the first cavity (4) and the second cavity (5) is had between, described first cavity (4) interior shape and the corresponding setting of described rotor body (12) shape, described rotor body (12) is positioned at described first cavity (4), described first cavity (4) and described rotor body (12) gap, be provided with magnetic (6), described second cavity (5) is the ring cavity being positioned at described first cavity (4) outside, field coil (7) is provided with in second cavity (5),
Magnetism resistent ring (8) is provided with between described first cavity (4) and described second cavity (5).
3. vertical type magnetic powder brake according to claim 1, it is characterized in that, described upper magnetic pole (2) is provided with upper shaft hole (21), described lower magnetic pole (3) is provided with lower shaft hole (31), is fixed in described upper and lower axis hole (21,31) after the bearing set of described rotor shaft (11) two ends; Seal ring (9) is provided with between described upper and lower magnetic pole (2,3) and described rotor shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324893.XA CN104948615A (en) | 2015-06-12 | 2015-06-12 | Vertical type magnetic powder brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324893.XA CN104948615A (en) | 2015-06-12 | 2015-06-12 | Vertical type magnetic powder brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948615A true CN104948615A (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510324893.XA Pending CN104948615A (en) | 2015-06-12 | 2015-06-12 | Vertical type magnetic powder brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871469A (en) * | 2020-12-25 | 2021-06-01 | 林鑫 | Device for effectively realizing rapid stop of high-speed centrifugal machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61290238A (en) * | 1985-06-18 | 1986-12-20 | Riken Corp | Magnetic powder type electromagnetic clutch and brake |
| CN201307821Y (en) * | 2008-10-24 | 2009-09-09 | 福州永森机器五金有限公司 | Magnetic powder arrester |
| CN103051151A (en) * | 2012-12-12 | 2013-04-17 | 海安县兰菱机电设备有限公司 | Vertical type magnetic powder brake |
| CN203051574U (en) * | 2012-12-12 | 2013-07-10 | 海安县兰菱机电设备有限公司 | Water-cooling vertical magnetic particle brake |
| CN104963969A (en) * | 2015-06-06 | 2015-10-07 | 张玉如 | Magnetic powder brake |
-
2015
- 2015-06-12 CN CN201510324893.XA patent/CN104948615A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61290238A (en) * | 1985-06-18 | 1986-12-20 | Riken Corp | Magnetic powder type electromagnetic clutch and brake |
| CN201307821Y (en) * | 2008-10-24 | 2009-09-09 | 福州永森机器五金有限公司 | Magnetic powder arrester |
| CN103051151A (en) * | 2012-12-12 | 2013-04-17 | 海安县兰菱机电设备有限公司 | Vertical type magnetic powder brake |
| CN203051574U (en) * | 2012-12-12 | 2013-07-10 | 海安县兰菱机电设备有限公司 | Water-cooling vertical magnetic particle brake |
| CN203119737U (en) * | 2012-12-12 | 2013-08-07 | 海安县兰菱机电设备有限公司 | Vertical-type magnetic powder brake |
| CN104963969A (en) * | 2015-06-06 | 2015-10-07 | 张玉如 | Magnetic powder brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871469A (en) * | 2020-12-25 | 2021-06-01 | 林鑫 | Device for effectively realizing rapid stop of high-speed centrifugal machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |