CN218587061U - Hysteresis brake for weakening remanence cogging force - Google Patents
Hysteresis brake for weakening remanence cogging force Download PDFInfo
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- CN218587061U CN218587061U CN202222582237.8U CN202222582237U CN218587061U CN 218587061 U CN218587061 U CN 218587061U CN 202222582237 U CN202222582237 U CN 202222582237U CN 218587061 U CN218587061 U CN 218587061U
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- inner stator
- rotor
- main shaft
- remanence
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Abstract
The utility model relates to a weaken residual magnetism pause or pause and frustrate hysteresis brake of power relates to the controlgear field, concretely relates to weaken residual magnetism pause or pause and frustrate hysteresis brake of power, including the main shaft, the main shaft is connected with first inner stator through the bearing, the winding has first excitation coil on the first inner stator, first inner stator overcoat is equipped with first outer stator, and one end of first inner stator is fixed with one end of first outer stator through fastener, is provided with first rotor in the region between the first inner stator and the first outer stator other end, first rotor passes through connecting device and main shaft fixed link; the utility model discloses simple structure, convenient to use utilizes the stator magnetic pole dislocation set on the stator magnetic pole on the first inner stator and the second inner stator, and under two passageways all had the condition of remanence, the moment of torsion that the remanence produced can offset each other, can effectively reduce the ripple moment that the remanence produced to reduce the weak pause and contort and feel.
Description
Technical Field
The utility model relates to a controlgear field, concretely relates to weaken remanence pause or pause and frustrate hysteresis brake of power.
Background
A hysteresis brake is a torque control component using the hysteresis principle. The magnetic hysteresis brake mainly comprises an outer stator, an inner stator, a rotor, an excitation coil and a rotating shaft. The rotor is made of special magnetic hysteresis material, and the stator magnetic poles have certain gaps in which the rotor rotates. When the exciting coil is electrified, a magnetic field is generated in the gap, so that the hysteresis effect is generated on the rotor. When the hysteresis rotor is rotated against the hysteresis force by an external force, a rated torque is generated. Because the exciting current and the output torque have better linear relation, smooth and stable torque irrelevant to the rotating speed can be provided, the output torque is only relevant to the magnitude of the exciting current and irrelevant to the rotating speed, non-contact torque transmission is realized, and the device has the advantages of stability, reliability, long service life, low maintenance cost and the like.
When the exciting coil is electrified, the coil generates an exciting field, the magnetic field is conducted to the rotor from the outer stator through the air gap and then is conducted to the inner stator through the air gap, and a whole magnetic field loop is formed.
The hard magnetic material of the rotor material of the hysteresis brake has the characteristics of high remanence and low coercive force and is often used as a permanent magnet. When the power is off, the rotor has magnetism, which is equivalent to a permanent magnet, and generates attraction force on the stator pole to prevent the stator pole from continuously moving; after the rotor is rotated, the rotor is far away from the stator magnetic pole, so that the suction force of the rotor to the stator pole is weakened, and the rotation resistance is reduced; when the rotor continues to rotate, the rotor is close to the next magnetic pole, the rotor pole generates strong suction force to the next pair of stator poles, the rotation resistance is increased, and the sudden resistance causes a pause in operation. On control equipment with higher requirements, such as an airplane throttle damper and the like, the generation of large jerk during operation is a very serious problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a simple structure can produce great moment of torsion, and can reduce the hysteresis brake that produces when the operation and frustrates one kind that feels and weaken remanence and pause and frustrate power.
The utility model relates to a weaken hysteresis lag brake of remanence pause and pause force, including the main shaft, the main shaft is connected with first inner stator through the bearing, the winding has first excitation coil on the first inner stator, first inner stator overcoat is equipped with first outer stator, and one end of first inner stator is fixed with one end of first outer stator through fastener, is provided with first rotor in the region between the other end of first inner stator and first outer stator, first rotor passes through connecting device and main shaft fixed connection;
a first lead channel is arranged on the first outer stator at a position corresponding to the first excitation coil;
the second inner stator is fixedly connected with the first outer stator, a second excitation coil is wound on the second inner stator, a second outer stator is sleeved outside the second excitation coil, one end of the second outer stator is fixedly connected with the second inner stator, a second rotor is arranged in a region between the other end of the second outer stator and the second inner stator, the second rotor is fixedly connected with the main shaft, and the second inner stator is connected with the main shaft through a bearing;
a second lead channel is arranged on the second outer stator at a position corresponding to the second excitation coil;
the stator magnetic poles on the first inner stator and the stator magnetic poles on the second inner stator are arranged in a staggered mode.
Preferably, the connecting device is a fixed sleeve, and the first rotor is fixedly connected with the main shaft through the fixed sleeve.
Preferably, the fixing sleeve is fixedly connected with the main shaft through a rivet.
Preferably, the fastening means is a fastening screw.
The utility model discloses simple structure, convenient to use utilizes the stator magnetic pole dislocation set on the stator magnetic pole on the first inner stator and the second inner stator, and under two passageways all had the condition of remanence, the moment of torsion that the remanence produced can offset each other, can effectively reduce the ripple moment that the remanence produced to reduce the weak pause and contort and feel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a perspective view of the first outer stator and the second outer stator of the present invention.
Fig. 4 is a schematic diagram of an embodiment of the external device for outputting the test result.
Fig. 5 is a graph showing the test results of the first and second outer stators aligned with each other and mounted on the product in the embodiment.
Fig. 6 is a torque chart of a product in which the first outer stator and the second outer stator are aligned in accordance with the embodiment.
Fig. 7 is a torque diagram of the present invention in the embodiment.
Fig. 8 is a schematic view of the alignment of the first outer stator and the second outer stator.
Reference numerals are as follows: 1-main shaft, 2-second rotor, 3-second outer stator, 4-second inner stator, 5-first outer stator, 6-first inner stator, 7-first lead channel, 8-first rotor, 9-second lead channel, and 10-second excitation coil.
Detailed Description
The utility model relates to a weaken hysteresis lag brake of remanence pause force, including main shaft 1, main shaft 1 is connected with first inner stator 6 through the bearing, the winding has first excitation coil on the first inner stator 6, first inner stator 6 overcoat is equipped with first outer stator 5, and one end of first inner stator 6 is fixed with one end of first outer stator 5 through fastener, is provided with first rotor 8 in the region between the first inner stator 6 and the first outer stator 5 other end, first rotor 8 is fixed with main shaft 1 through connecting device;
a first lead channel 7 is arranged on the first outer stator 5 at a position corresponding to the first excitation coil;
the spindle further comprises a second inner stator 4, the second inner stator 4 is fixedly connected with a first outer stator 5, a second excitation coil 10 is wound on the second inner stator 4, a second outer stator 3 is sleeved outside the second excitation coil 10, one end of the second outer stator 3 is fixedly connected with the second inner stator 4, a second rotor 2 is arranged in a region between the other end of the second outer stator 3 and the second inner stator 4, the second rotor 2 is fixedly connected with the spindle 1, and the second inner stator 4 is connected with the spindle 1 through a bearing; in practical use, the second inner stator 4 is fixedly connected with the first outer stator 5 through screws.
A second lead channel 9 is arranged on the second outer stator 3 corresponding to the position of the second excitation coil 10;
the stator magnetic poles on the first inner stator 6 and the stator magnetic poles on the second inner stator 4 are arranged in a staggered mode.
The connecting device is a fixed sleeve, and the first rotor 8 is fixedly connected with the main shaft 1 through the fixed sleeve.
The fixed sleeve is fixedly connected with the main shaft 1 through a rivet.
The fastening device is a fastening screw.
According to the requirement the utility model provides a two passageways can the exclusive use also can use simultaneously, during the simultaneous use, the moment value is the moment sum of two passageways.
Will the utility model discloses with the product of the stator magnetic pole alignment installation on the stator magnetic pole on the first inner stator 6 and the second inner stator 4, apply the same excitation voltage, let it have remanence to carry out the torque test, test fixture is as follows: the motor is connected with the torque sensor through the first coupler, and the torque sensor is connected with the installation tool through the second coupler which is connected with the torque sensor; then, a direct current power supply is utilized to supply power to the torque sensor, and the torque sensor is connected with a display and signal output external equipment; the external device outputs the test result as shown in fig. 4 and 5:
the two passage torque variation ranges of the product in which the stator pole on the first inner stator 6 and the stator pole on the second inner stator 4 are aligned are Δ 0.0103n.m.
The utility model discloses a two passageway side by side tooth installation moment of torsion variation range is delta 0.0073N.m.
The entire test system had a 0.0048n.m friction torque.
So that the remanence torque is reduced from delta 0.0055N.m to delta 0.0025N.m.
To the product of the stator magnetic pole alignment installation on the first inner stator 6 and the stator magnetic pole on the second inner stator 4 and the utility model discloses carry out the torque analysis, the moment of torsion schematic diagram is shown in fig. 6 and 7.
Claims (4)
1. A hysteresis brake for weakening residual magnetism cogging force comprises a main shaft (1), and is characterized in that the main shaft (1) is connected with a first inner stator (6) through a bearing, a first excitation coil is wound on the first inner stator (6), a first outer stator (5) is sleeved outside the first inner stator (6), one end of the first inner stator (6) is fixedly connected with one end of the first outer stator (5) through a fastening device, a first rotor (8) is arranged in a region between the other end of the first inner stator (6) and the other end of the first outer stator (5), and the first rotor (8) is fixedly connected with the main shaft (1) through a connecting device;
a first lead channel (7) is arranged on the first outer stator (5) corresponding to the position of the first excitation coil;
the spindle is characterized by further comprising a second inner stator (4), the second inner stator (4) is fixedly connected with the first outer stator (5), a second excitation coil (10) is wound on the second inner stator (4), a second outer stator (3) is sleeved outside the second excitation coil (10), one end of the second outer stator (3) is fixedly connected with the second inner stator (4), a second rotor (2) is arranged in an area between the other end of the second outer stator (3) and the second inner stator (4), the second rotor (2) is fixedly connected with the spindle (1), and the second inner stator (4) is connected with the spindle (1) through a bearing;
a second lead channel (9) is arranged on the second outer stator (3) corresponding to the position of the second excitation coil (10);
and the stator magnetic poles on the first inner stator (6) and the stator magnetic poles on the second inner stator (4) are arranged in a staggered mode.
2. A hysteresis brake with damping of the force of remanence cogging as claimed in claim 1, characterized in that the coupling means are stationary sleeves, by means of which the first rotor (8) is fixedly connected to the main shaft (1).
3. A hysteresis brake with a reduced remanence cogging force according to claim 2, characterized in that the fixing sleeve is fixedly connected to the main shaft (1) by means of rivets.
4. A hysteresis brake with reduced remanence cogging force as in claim 3, characterized in that said fastening means are fastening screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222582237.8U CN218587061U (en) | 2022-09-29 | 2022-09-29 | Hysteresis brake for weakening remanence cogging force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222582237.8U CN218587061U (en) | 2022-09-29 | 2022-09-29 | Hysteresis brake for weakening remanence cogging force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218587061U true CN218587061U (en) | 2023-03-07 |
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ID=85366697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222582237.8U Active CN218587061U (en) | 2022-09-29 | 2022-09-29 | Hysteresis brake for weakening remanence cogging force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218587061U (en) |
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2022
- 2022-09-29 CN CN202222582237.8U patent/CN218587061U/en active Active
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