CN216252449U

CN216252449U - Flywheel system and anti-rolling gyro

Info

Publication number: CN216252449U
Application number: CN202122815967.3U
Authority: CN
Inventors: 侯明波; 姚学富; 廖霜玉
Original assignee: Shanghai Zhoujia Technology Co ltd
Current assignee: Shanghai Zhoujia Technology Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-08
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the technical field of ship stabilization, and particularly discloses a flywheel system and a stabilization gyro, wherein the flywheel system comprises a shell, a flywheel, a bearing, a motor, a rotating speed detection device and a motor driver, and the shell is provided with a closed accommodating cavity; the flywheel can rotate relative to the shell, and the motor is used for driving the flywheel to rotate and is positioned in the accommodating cavity; the rotational speed detection device is including being located the permanent magnet that holds the intracavity and installing the magnetoelectric sensor outside the shell, the permanent magnet can rotate along with the flywheel, and the magnetic field of permanent magnet can pierce through the shell and can be detected by magnetoelectric sensor, and can convert the signal output of telecommunication into by magnetoelectric sensor, the signal drive motor that motor driver detected according to magnetoelectric sensor is rotatory, the motor then can further drive the flywheel rotatory, the realization is to the rotational speed control of flywheel, compare the flywheel system among the prior art, rotational speed sensor's cable need not to pass the shell, can simplify the structure of shell, make the shell be convenient for process and can promote sealed effect.

Description

Flywheel system and anti-rolling gyro

Technical Field

The utility model relates to the technical field of ship stabilization, in particular to a flywheel system and a stabilization gyro.

Background

The anti-rolling gyroscope has the advantages of no influence of navigational speed on the anti-rolling effect, compact structure, small occupied space, good anti-rolling effect and the like, so the anti-rolling gyroscope is more and more widely applied to the field of ship anti-rolling.

The anti-rolling gyroscope is internally provided with a heavy flywheel, and the flywheel rotating at a high speed has momentum moment and precession physical effect of the gyroscope. The swinging motion of the ship body enables the rotating flywheel to generate precession torque to push the flywheel and the flywheel frame to precess together, meanwhile, the rotating flywheel generates anti-rolling torque during precession, and the anti-rolling torque is transmitted to the ship body through the flywheel frame and the base to resist the swinging of the ship body.

When the flywheel system of the anti-rolling gyroscope works, the motor drives the flywheel to rotate at a high speed. In the prior art, in order to prevent the flywheel and the motor from being corroded by salt fog, a shell is manufactured into a full-sealed form, and the flywheel, the motor, a rotating speed sensor and other parts are arranged in a cavity of the shell; in order to reduce wind resistance, the inner cavity of the shell is vacuumized.

In the prior art, the cable of the rotation speed sensor passes through the wall of the housing. In order to maintain the vacuum seal of the housing, the cable of the tachometer must be sealed when passing through the housing wall, and the sealing measures include the addition of vacuum cable connectors, the filling of sealant, etc., but the sealing measures complicate the structure of the housing, make the manufacture difficult, and make it difficult to completely avoid the slow leakage or failure risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: a flywheel system and a stabilizing top are provided to solve the problems that in the related art, a cable of a rotating speed sensor in the flywheel system penetrates through a shell wall and sealing measures are needed, so that the structure of the shell becomes complex, the manufacturing becomes difficult, and the slow leakage or failure risk is difficult to completely avoid.

In one aspect, the present invention provides a flywheel system comprising:

a housing having a closed receiving cavity;

the flywheel is positioned in the accommodating cavity;

the inner ring of the bearing is fixedly sleeved on the flywheel, and the outer ring of the bearing is fixedly arranged on the shell;

the motor is arranged on the shell and positioned in the accommodating cavity, and the motor is used for driving the flywheel to rotate;

the rotating speed detection device comprises a permanent magnet positioned in the accommodating cavity and a magnetoelectric sensor arranged outside the shell and mounted on the shell, the permanent magnet can rotate along with the flywheel, and a magnetic field of the permanent magnet can penetrate through the shell and can be detected by the magnetoelectric sensor;

and the magnetoelectric sensor and the motor are electrically connected with the motor driver.

As a preferred technical solution of the flywheel system, a portion of the housing between the magnetoelectric sensor and the permanent magnet is made of a non-magnetic material.

As a preferred technical scheme of the flywheel system, the flywheel system further comprises a gland, the gland is made of a non-magnetic material, the gland is sleeved on the flywheel and is located at a shaft end on one side of the flywheel, and the permanent magnet is adhered to the gland.

As the preferred technical scheme of the flywheel system, the pressing cover is provided with a groove, and the permanent magnet is embedded in the groove.

As the preferred technical scheme of the flywheel system, the shell is arranged in the mounting groove, and the magnetoelectric sensor is embedded in the mounting groove.

As a preferred embodiment of the flywheel system, the housing includes a first housing, a second housing, a first cover plate, and a second cover plate, the first housing and the second housing are hermetically connected to form the accommodating chamber, the first housing has a first opening communicating with the accommodating chamber, the second housing has a second opening communicating with the accommodating chamber, the first cover plate and the first housing are hermetically connected to seal the first opening, and the second cover plate and the second housing are connected to seal the second opening;

the first end of flywheel is through one the bearing rotate support in first casing, the second end of flywheel is through another the bearing rotate support in the second casing, the permanent magnet set up in the first end of flywheel, magnetoelectric sensor set up in first apron.

In another aspect, the present invention provides a stabilizing gyro comprising a flywheel system according to any of the above aspects.

The utility model has the beneficial effects that:

the utility model provides a flywheel system and an anti-rolling gyroscope, wherein the flywheel system comprises a shell, a flywheel, a bearing, a motor, a rotating speed detection device and a motor driver, wherein the shell is provided with a closed accommodating cavity; the outer ring of the bearing is fixedly arranged on the shell, the inner ring of the bearing is fixedly sleeved on the flywheel, the flywheel can rotate relative to the shell through the bearing, the motor is arranged on the shell and positioned in the accommodating cavity, and the motor is used for driving the flywheel to rotate; rotational speed detection device includes permanent magnet and magnetoelectric sensor, wherein, the permanent magnet is located and holds the intracavity, magnetoelectric sensor sets up outside the shell and installs in the shell, the permanent magnet can rotate along with the flywheel, and the magnetic field of permanent magnet can pierce through the shell and can be detected by magnetoelectric sensor, and can convert the signal of telecommunication output by magnetoelectric sensor, with the actual rotational speed of feedback flywheel, compare the rotational speed sensor in the current flywheel system, magnetoelectric sensor is located the shell outsidely, thereby the cable need not to pass the shell, can simplify the structure of shell, make the shell be convenient for process and can promote sealed effect. The magnetoelectric sensor and the motor are electrically connected with the motor driver, the motor driver drives the motor to rotate according to signals detected by the magnetoelectric sensor, and the motor can further drive the flywheel to rotate so as to realize the rotation speed control of the flywheel.

Drawings

FIG. 1 is a schematic structural diagram of a flywheel system according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of a flywheel system according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a housing of the flywheel system according to an embodiment of the present invention.

In the figure:

1. a housing; 11. an accommodating chamber; 12. a first housing; 121. mounting grooves; 122. a first opening; 13. a second housing; 131. a second opening; 14. a first cover plate; 15. a second cover plate; 16. a seal ring;

2. a flywheel;

3. a bearing;

4. a motor; 41. a rotor; 42. a stator;

51. a permanent magnet; 52. a magnetoelectric sensor;

61. a first cable; 62. a cable connector; 63. a second cable;

7. a motor driver;

8. a gland; 81. a groove;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

When the flywheel system of the anti-rolling gyroscope works, the motor drives the flywheel to rotate at a high speed. In the prior art, in order to prevent the flywheel and the motor from being corroded by salt fog, a shell is manufactured into a full-sealed form, and the flywheel, the motor, a rotating speed sensor and other parts are arranged in a shell cavity; in order to reduce wind resistance, the cavity of the shell is vacuumized. The prior art tachometer sensor is mounted within a housing cavity with the cable of the tachometer sensor passing through the housing wall. In order to maintain the housing vacuum tight, the cables of the tacho sensor must be sealed through the housing wall, which results in a complicated housing structure, difficult manufacturing and difficulty in completely avoiding the risk of slow leakage or failure.

As shown in fig. 1 to 3, the present embodiment provides a flywheel system including a housing 1, a flywheel 2, a bearing 3, a motor 4, a rotation speed detection device, and a motor driver 7. Wherein, the shell 1 is provided with a closed accommodating cavity 11; the outer ring of the bearing 3 is fixedly arranged on the shell 1, the inner ring of the bearing 3 is fixedly sleeved on the flywheel 2, the flywheel 2 can rotate relative to the shell 1 through the bearing 3, the motor 4 is arranged on the shell 1 and positioned in the accommodating cavity 11, and the motor 4 is used for driving the flywheel 2 to rotate; the rotating speed detection device comprises a permanent magnet 51 and a magnetoelectric sensor 52, wherein the permanent magnet 51 is positioned in the accommodating cavity 11, the magnetoelectric sensor 52 is arranged outside the shell 1 and is installed on the shell 1, the permanent magnet 51 can rotate along with the flywheel 2, the magnetic field of the permanent magnet 51 can penetrate through the shell 1 and can be detected by the magnetoelectric sensor 52, the magnetoelectric sensor 52 and the motor 4 are both electrically connected with the motor driver 7, the magnetoelectric sensor 52 can convert the detected magnetic field into an electric signal and output the electric signal to the motor driver 7 so as to feed back the actual rotating speed of the flywheel 2, the motor driver 7 controls the rotating speed of the motor 4 according to the electric signal, and the motor 4 can further drive the flywheel 2 to rotate so as to realize the control of the rotating speed of the flywheel 2; and a closed-loop control system can be constructed among the magnetoelectric sensor 52, the motor driver 7 and the motor 4, when the motor driver 7 judges that the rotating speed of the flywheel 2 is larger, the rotating speed of the motor 4 can be reduced, and when the rotating speed of the flywheel 2 is smaller, the rotating speed of the motor 4 can be increased.

Because magnetoelectric sensor 52 in this embodiment is located the shell 1 outside to the cable need not to pass shell 1, can simplify shell 1's structure, makes shell 1 be convenient for process and can promote sealed effect.

Specifically, as shown in fig. 1, the flywheel system further includes a first cable 61 connected to the motor 4, and a cable connector 62 connected to the first cable 61, the cable connector 62 is connected to the motor driver 7 through a cable, the motor driver 7 is located outside the housing 1, the cable connector 62 is inserted into the housing 1 and is hermetically connected to the housing 1, and the first cable 61 is located in the accommodating cavity 11. The cable connector 62 can be a vacuum cable connector 62, and after the vacuum is pumped in the accommodating cavity 11, the vacuum cable connector 62 can ensure that the vacuum environment in the accommodating cavity 11 does not leak. Preferably, the flywheel system further comprises a second cable 63, the second cable 63 connecting the motor driver 7 and the magneto sensor 52.

In the present embodiment, at least a portion of the housing 1 located between the magnetoelectric sensor 52 and the permanent magnet 51 is made of a non-magnetic material, so that the magnetic field of the permanent magnet 51 is not influenced by the magnetic permeability of the magnetic substance when diverging to the outside of the housing 1. Among them, there are various magnetoelectric sensors 52, such as a magnetic encoder, a hall angle sensor, a hall switch, and the like.

In order to ensure the accuracy of detection, when the permanent magnet 51 and the magnetoelectric sensor 52 are arranged, the permanent magnet 51 and the magnetoelectric sensor 52 are positioned as close to each other as possible. As shown in fig. 3, in the present embodiment, the housing 1 includes a first housing 12, a second housing 13, a first cover plate 14, and a second cover plate 15, the first housing 12 and the second housing 13 are hermetically connected and form the accommodating chamber 11, the first housing 12 has a first opening 122 communicating with the accommodating chamber 11, the second housing 13 has a second opening 131 communicating with the accommodating chamber 11, the first cover plate 14 and the first housing 12 are hermetically connected and seal the first opening 122, and the second cover plate 15 and the second housing 13 are connected and seal the second opening 131; a first end of the flywheel 2 is rotatably supported on the first housing 12 through one bearing 3, a second end of the flywheel 2 is rotatably supported on the second housing 13 through the other bearing 3, the permanent magnet 51 is disposed at the first end of the flywheel 2, and the magnetoelectric sensor 52 is disposed on the first cover plate 14.

Specifically, the permanent magnet 51 and the magnetoelectric sensor 52 are disposed at intervals on both sides of the first housing 12 in the axial direction of the flywheel 2, and thus, the distance between the permanent magnet 51 and the magnetoelectric sensor 52 is only slightly thicker than the wall thickness of the first housing 12, so as to ensure the accuracy of detection. The first casing 12 may be made of a non-magnetic material, such as aluminum, copper, stainless steel, etc., so that when the magnetic field of the permanent magnet 51 is emitted to the outside of the first casing 12, the first casing 12 does not generate interference, and the material of the second casing 13 is not limited.

In this embodiment, the sealing rings 16 are disposed between the first casing 12 and the second casing 13, between the first cover plate 14 and the first casing 12, and between the second cover plate 15 and the second casing 13, and the sealing performance of the accommodating chamber 11 can be ensured by connecting the first casing 12 and the second casing 13, the first cover plate 14 and the first casing 12, and the second cover plate 15 and the second casing 13 by bolts.

Optionally, as shown in fig. 1 and fig. 2, the flywheel system further includes a gland 8, the gland 8 is made of a non-magnetic material, the gland 8 is sleeved on the flywheel 2 and is located at a shaft end of one side of the flywheel 2, and the permanent magnet 51 is adhered to the gland 8. Preferably, the pressing cover 8 is provided with a groove 81, and the permanent magnet 51 is embedded in the groove 81, so that the permanent magnet 51 can be stably fixed by the pressing cover 8 and can be protected. It should be noted that, in the present embodiment, there are two glands 8, two shaft ends of the flywheel 2 are respectively sleeved with one gland 8, the gland 8 and the flywheel 2 can be fixed by bolts, the two glands 8 respectively abut against the two bearings 3 to axially limit the two bearings 3, and the permanent magnet 51 is disposed on the gland 8 adjacent to the first housing 12.

Alternatively, as shown in fig. 2, the housing 1 is provided with a mounting groove 121, and the magneto-electric sensor 52 is embedded in the mounting groove 121. Specifically, in this embodiment, be provided with mounting groove 121 on the first casing 12 of shell 1, through setting up mounting groove 121, can protect magnetoelectric sensor 52 on the one hand, on the other hand can reduce the local wall thickness of first casing 12 and can not influence the whole cavity of first casing 12, and through reducing the local wall thickness of first casing 12, can guarantee that the magnetic field of permanent magnet 51 loses lessly after penetrating through first casing 12 to guarantee magnetoelectric sensor 52 and detect the accuracy of signal.

Optionally, the motor 4 includes a rotor 41 and a stator 42, the rotor 41 is fixedly sleeved on the flywheel 2, and the stator 42 is fixedly sleeved on the rotor 41 and fixed to the housing 1. The motor 4 of the embodiment adopts a frameless direct-drive motor, the stator 42, the rotor 41 and the flywheel 2 are coaxially arranged, transmission parts such as gears and the like do not need to be adopted in the arrangement, the size of the motor 4 can be designed to be smaller, and the reduction of the whole size of a flywheel system is facilitated. Of course, in other embodiments, the motor 4 may also be a common frame motor, and the output shaft of the frame motor is in transmission connection with the flywheel 2 through a gear transmission assembly, a belt transmission assembly or a chain transmission assembly.

The embodiment also provides a stabilizing gyro which comprises the flywheel system in any one of the above schemes, and the stabilizing gyro can be used for reducing the swinging of a ship.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A flywheel system, comprising:

a housing (1), the housing (1) having a closed receiving chamber (11);

a flywheel (2) located inside the housing chamber (11);

the inner ring of the bearing (3) is fixedly sleeved on the flywheel (2), and the outer ring of the bearing (3) is fixedly arranged on the shell (1);

the motor (4) is arranged on the shell (1) and is positioned in the accommodating cavity (11), and the motor (4) is used for driving the flywheel (2) to rotate;

the rotating speed detection device comprises a permanent magnet (51) positioned in the accommodating cavity (11) and a magnetoelectric sensor (52) arranged outside the shell (1) and mounted on the shell (1), wherein the permanent magnet (51) can rotate along with the flywheel (2), and a magnetic field of the permanent magnet (51) can penetrate through the shell (1) and can be detected by the magnetoelectric sensor (52);

the motor driver (7), the magnetoelectric sensor (52), motor (4) all with motor driver (7) electricity is connected.

2. The flywheel system according to claim 1, characterized in that the portion of the casing (1) located between the magnetoelectric sensor (52) and the permanent magnet (51) is made of a non-magnetic material.

3. The flywheel system as claimed in claim 1, further comprising a gland (8), wherein the gland (8) is made of a non-magnetic material, the gland (8) is sleeved on the flywheel (2) and is located at a shaft end of one side of the flywheel (2), and the permanent magnet (51) is adhered to the gland (8).

4. A flywheel system according to claim 3, characterized in that the gland (8) is provided with a groove (81), the permanent magnet (51) being embedded in the groove (81).

5. The flywheel system according to claim 1, characterized in that said housing (1) is provided with a mounting groove (121), said magnetoelectric sensor (52) being embedded in said mounting groove (121).

6. A flywheel system according to any of claims 1 to 5, characterized in that said housing (1) comprises a first shell (12), a second shell (13), a first cover plate (14) and a second cover plate (15), said first shell (12) and said second shell (13) being sealingly connected and forming said containment chamber (11), said first shell (12) having a first opening (122) communicating with said containment chamber (11), said second shell (13) having a second opening (131) communicating with said containment chamber (11), said first cover plate (14) being sealingly connected with said first shell (12) and sealing said first opening (122), said second cover plate (15) being connected with said second shell (13) and sealing said second opening (131);

the first end of flywheel (2) is through one bearing (3) rotate support in first casing (12), the second end of flywheel (2) is through another bearing (3) rotate support in second casing (13), permanent magnet (51) set up in the first end of flywheel (2), magnetoelectric sensor (52) set up in first apron (14).

7. A stabilizing gyro comprising a flywheel system as claimed in any one of claims 1 to 6.