Anti-rolling gyroscope

Abstract

The utility model discloses an anti-rolling gyroscope, which relates to the technical field of ship anti-rolling, and adopts the technical scheme that the anti-rolling gyroscope comprises a bottom frame, a flywheel frame rotationally connected to the bottom frame, a flywheel rotationally connected in the flywheel frame and a driving motor for driving the flywheel to rotate, and the flywheel frame is a spherical component with a sealed cavity; the flywheel frame is provided with an air nozzle communicated with the sealing cavity, the air nozzle is suitable for vacuumizing the sealing cavity, a stator of the driving motor is fixedly connected to the inner bottom of the flywheel frame, one end of the flywheel is rotationally connected with the top of the flywheel frame through a first bearing, and the other end of the flywheel is fixedly connected with a rotor of the driving motor. The flywheel frame is provided with heat dissipation assemblies used for conducting heat dissipation on the position of the first bearing and the drive motor. The anti-rolling device has the advantages of being good in anti-rolling effect and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of ship anti-rolling, and more specifically, to an anti-rolling gyro. Background Art

[0002] The anti-roll gyro is a ship anti-roll device that can effectively reduce the ship's roll. Boats will sway under the action of waves, among which the roll is the most harmful. Ship anti-roll devices include anti-roll fins, anti-roll water tanks, anti-roll gyro, etc., each with its own advantages and disadvantages. The anti-roll gyro is mainly composed of a rotor and its drive device, a rotor frame, a rotor frame precession control device, a mounting base and other components. Among them, when the boat sways under the action of waves, the rotor is set in the rotor frame and rotates around a rotation axis; the rotor precesses around a precession axis with the rotor frame. The torque generated by the anti-roll gyro on the boat comes from the reaction torque generated when the rotor frame precesses. Only when this torque is approximately in antiphase with the wave torque can it reduce the roll, and when they are approximately in phase, the effect is to increase the roll.

[0003] The existing decompression gyroscope has problems such as poor flywheel frame structure strength and insufficient sealing performance, which affects its anti-roll effect and service life. Therefore, it is necessary to improve the structure of the anti-roll gyroscope and improve its performance.

[0004] It is easy to break during use and has no sealing performance. Air can easily enter the flywheel frame and cause corrosion to the flywheel. At the same time, there is friction between the air and the flywheel, which will affect the speed of the flywheel on the one hand, and generate a lot of heat due to friction with the air on the other hand, which is not conducive to the normal operation of the flywheel.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model aims to provide a gyro with good anti-roll effect and long service life.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a gyro with anti-roll, comprising a base frame, a flywheel frame rotatably connected to the base frame, a flywheel rotatably connected in the flywheel frame, and a driving motor for driving the flywheel to rotate, wherein the flywheel frame is a spherical component with a sealed cavity, the flywheel frame is provided with an air nozzle connected to the sealed cavity, the air nozzle is suitable for evacuating the sealed cavity, the stator of the driving motor is fixedly connected to the inner bottom of the flywheel frame, one end of the flywheel is rotatably connected to the top of the flywheel frame through a first bearing, the other end of the flywheel is fixedly connected to the rotor of the driving motor, and the flywheel frame is respectively provided with heat dissipation components for dissipating heat from the first bearing position and the driving motor.

[0008] In one embodiment, the two heat dissipation components are respectively arranged at the bottom and top of the flywheel frame along the axial direction of the driving motor, and the heat dissipation components include a heat dissipation plate and a heat dissipation end cover. A mounting portion is provided on the flywheel frame, and the heat dissipation plate is fixedly connected to the mounting portion by a first bolt, and the heat dissipation end cover is fixedly connected to the heat dissipation plate by a second bolt. A plurality of annular grooves are concentrically arranged at one end of the heat dissipation plate close to the heat dissipation end cover, and a notch is provided on the heat dissipation plate for radially opening the plurality of annular grooves.

[0009] In one of the embodiments, heat dissipating silicone grease is disposed in the annular groove.

[0010] In one embodiment, one side of the flywheel frame is rotatably connected to the base frame via a second bearing, a gear reducer is fixedly connected to one side of the base frame away from the second bearing, and an output end of the gear reducer is fixedly connected to the other side of the flywheel frame.

[0011] In one embodiment, the flywheel frame includes two hemispherical components, and the relative positions of the two hemispherical components are fixedly connected with connecting rings respectively. The two connecting rings are connected and fixed by a third bolt. A sealing ring is also arranged between the two connecting rings. Reinforcing ribs are respectively arranged on the outer wall of each hemispherical component. The reinforcing ribs are fitted with the hemispherical components and the two ends are respectively connected to the mounting part and the connecting ring. Both of the two hemispherical components are made of metal material with heat conductivity.

[0012] In one embodiment, the flywheel frame can precess around the second bearing within a precession angle range of -90° to 90°, and the base frame is provided with buffer rods for buffering the flywheel frame precessing to -90° and 90°, respectively. An impact block is fixed on the flywheel frame, and the impact block can collide with the buffer rod when the flywheel frame precesses to -90° and 90°.

[0013] In one of the embodiments, the anti-roll gyro further comprises a hull bracket, a pressure sensor is fixedly connected between the hull bracket and the base frame, a plurality of the pressure sensors are arranged at intervals along the horizontal plane, and the pressure sensors are suitable for overload detection of the anti-roll gyro.

[0014] In summary, the utility model has the following beneficial effects: the utility model transforms the flywheel frame into a spherical component with a sealed cavity, the spherical component has good structural strength, which is beneficial to improving the service life of the gyro, and the sealed cavity is evacuated through an air nozzle to prevent air from entering the flywheel frame and causing corrosion to the flywheel, while reducing the friction between the air and the flywheel, which is beneficial to the normal operation of the flywheel, and by providing a heat dissipation component, it is beneficial to dissipate heat for the drive motor and the first bearing that are prone to generate high heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a gyro stabilizer according to an embodiment of the present application;

[0016] Figure 2 A cross-sectional view of a gyro according to an embodiment of the present application;

[0017] Figure 3 It is a schematic structural diagram of a hemispherical component and a heat sink in an embodiment of the gyro of the present application.

[0018] In the figure: 1, chassis; 2, hull bracket; 3, flywheel frame; 31, hemispherical member; 311, mounting portion; 312, connecting ring; 313, reinforcing rib; 4, heat dissipation assembly; 41, heat dissipation end cover; 411, annular groove; 412, notch; 42, heat dissipation plate; 5, air nozzle; 6, gear reducer; 7, trigger block; 8, travel switch; 9, flywheel; 10, drive motor; 11, first bearing; 12, second bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 3As shown, the embodiment of the present application provides a gyro, comprising a base frame 1, a flywheel frame 3 rotatably connected to the base frame 1, a flywheel 9 rotatably connected in the flywheel frame 3, and a drive motor 10 for driving the flywheel 9 to rotate. The flywheel frame 3 is a spherical member with a sealed cavity, and the flywheel frame 3 is provided with an air nozzle 5 connected to the sealed cavity, and the air nozzle 5 is provided with a one-way exhaust valve, and the air nozzle 5 is suitable for vacuuming the sealed cavity. The vacuuming described here is not an absolute vacuum state, and it only needs to ensure that a large amount of gas in the flywheel frame 3 is discharged. The stator of the drive motor 10 is fixedly connected to the inner bottom of the flywheel frame 3, one end of the flywheel 9 is rotatably connected to the top of the flywheel frame 3 through the first bearing 11, and the other end of the flywheel 9 is fixedly connected to the rotor of the drive motor 10. The drive motor 10 is specifically a frameless motor, and the frameless motor has the advantages of compact structure and small installation space. The flywheel frame 3 is respectively provided with a heat dissipation component 4 for dissipating heat from the first bearing 11 position and the drive motor 10. It also includes a PLC controller, an angle sensor and a speed sensor electrically connected to the PLC controller. The speed sensor is arranged between the flywheel 9 and the flywheel frame 3, the angle sensor is arranged between the flywheel frame 3 and the base frame 1, and the drive motor 10 is electrically connected to the PLC controller. The specific displacement and speed identification and control methods adopt the existing technology.

[0021] It should be noted that the heat dissipation assembly 4 may or may not penetrate the flywheel frame 3. When penetrating, a sealing structure needs to be provided at the penetration position, for example: the first bearing 11 adopts a sealed bearing, so that the connection position between the first bearing 11 and the flywheel frame is not prone to leakage, the drive motor 10 can pass through the flywheel frame 3, and partially extend into the heat dissipation assembly 4 below, and a sealing ring is provided at the connection position between the drive motor and the flywheel frame.

[0022] When the above-mentioned anti-roll gyro is working, the driving motor 10 drives the flywheel 9 to rotate at high speed around the longitudinal axis, connecting the base frame 1 with the hull. When the hull swings, the high-speed rotating flywheel 9 generates a forward force, driving the flywheel 9 and the flywheel 9 frame to rotate around the transverse axis relative to the base frame 1 to offset the swing generated by the hull, thereby achieving an anti-roll effect. Its detailed working method is a conventional method in the prior art and is not described in detail in this embodiment.

[0023] In the above manner, the flywheel frame 3 is formed into a spherical component with a sealed cavity, which has good structural strength, which is beneficial to improving the service life of the gyro. The sealed cavity is evacuated through the air nozzle 5 to prevent air from entering the flywheel frame 3 and corroding the flywheel 9. At the same time, the friction between the air and the flywheel 9 is reduced, which is beneficial to the normal operation of the flywheel 9. By setting the heat dissipation component 4, it is beneficial to dissipate heat for the drive motor 10 and the first bearing 11 that are prone to generate high heat.

[0024] In this embodiment, the two heat dissipation components 4 are respectively arranged at the bottom and top of the flywheel frame 3 along the axial direction of the drive motor 10. The heat dissipation components 4 include a heat dissipation plate 42 and a heat dissipation end cover 41. The flywheel frame 3 is provided with a mounting portion 311. The heat dissipation plate 42 is fixedly connected to the mounting portion 311 by a first bolt, thereby ensuring a stable connection between the heat dissipation plate 42 and the flywheel frame 3, and at the same time ensuring that heat can be smoothly transferred from the flywheel frame 3 to the heat dissipation plate 42. The heat dissipation end cover 41 is fixedly connected to the heat dissipation plate 42 by a second bolt, forming a closed heat dissipation space. A plurality of annular grooves 411 are concentrically arranged at one end of the heat dissipation plate 42 close to the heat dissipation end cover 41. A notch 412 for radially opening the plurality of annular grooves 411 is arranged on the heat dissipation plate 42, and heat dissipation silicone grease is arranged in the annular groove 411.

[0025] Through the above arrangement, the heat dissipation silicone grease has good thermal conductivity and can quickly transfer heat from the heat dissipation plate 42 to the heat dissipation end cover 41. The heat dissipation plate 42 is provided with a plurality of annular grooves 411, which are concentrically arranged and radially connected to each other through notches 412. This design increases the surface area of ​​the heat dissipation plate 42, so that heat can be dissipated to the surrounding environment more quickly. At the same time, the design of the notch 412 also allows the heat dissipation silicone grease to be better filled in the annular groove 411, thereby improving the heat conduction efficiency.

[0026] In this embodiment, one side of the flywheel frame 3 is rotatably connected to the base frame 1 through a second bearing 12, and a gear reducer 6 is fixedly connected to the side of the base frame 1 away from the second bearing 12, and the output end of the gear reducer 6 is fixedly connected to the other side of the flywheel frame 3.

[0027] It is understandable that a torque control motor may be provided at the input end of the gear reducer 6 , and the torque control motor is electrically connected to the PLC controller, and the precession speed and precession angle of the flywheel frame 3 may be controlled by the torque control motor.

[0028] In the above manner, the gear reducer 6 adopts gear transmission, which has the advantages of compact structure, strong load-bearing capacity, reliable operation, etc. This makes the flywheel frame 3 more stable during rotation, reduces the failure caused by speed fluctuation, and is less likely to have oil leakage risk compared to the traditional controllable hydraulic damping system, which is conducive to improving the reliability of the anti-roll gyro.

[0029] In this embodiment, the flywheel frame 3 includes two hemispherical components 31, and the relative positions of the two hemispherical components 31 are fixedly connected with connecting rings 312 respectively. The two connecting rings 312 are connected and fixed by a third bolt. A sealing ring is also arranged between the two connecting rings 312. A reinforcing rib 313 is arranged on the outer wall of each hemispherical component 31. The reinforcing rib 313 is fitted with the hemispherical component 31 and the two ends are respectively connected to the mounting portion 311 and the connecting ring 312. The two hemispherical components 31 are made of metal material with heat conductivity.

[0030] In the above manner, the flywheel frame 3 is composed of two hemispherical components 31, which are connected and fixed by a connecting ring 312 and a third bolt. This design makes the assembly and disassembly of the flywheel frame 3 simple and quick, and is convenient for maintenance and replacement of parts. The setting of the sealing ring can effectively prevent the direct contact between the inside of the flywheel frame 3 and the external environment, which is conducive to improving the sealing of the flywheel frame 3. The setting of the reinforcing ribs 313 can significantly improve the structural strength of the flywheel frame 3, so that it can withstand greater loads and impact forces, and ensure the stability and safety of the flywheel frame 3. The two hemispherical components 31 are made of metal materials with heat conductivity, such as aluminum alloy, copper, etc. This material selection makes the flywheel frame 3 have good thermal conductivity, can quickly conduct the heat generated inside to the outside, reduce the working temperature of the flywheel frame 3, and improve the service life and performance stability of the flywheel frame 3.

[0031] In this embodiment, the flywheel frame 3 can precess around the second bearing 12 within the precession angle range of -90° to 90°, and the base frame 1 is provided with a buffer rod 8 for buffering the flywheel frame 3 precessing to -90° and 90°, respectively. An impact block 7 is fixed on the flywheel frame 3, and the impact block 7 can collide with the buffer rod 8 when the flywheel frame 3 precesses to -90° and 90°. Specifically, the buffer rod 8 can be an airbag column with a certain buffering contraction ability, or a hard rod can be used, a slide groove is provided on the flywheel frame 3, the hard rod is slidably connected in the slide groove, and a buffer spring is fixedly connected between the bottom of the slide groove and the hard rod.

[0032] In the above manner, by arranging the buffer rod 8 and the impact block 7, the flywheel frame can be buffered under the buffer force of the buffer rod 8 when it precesses to the end position, and it is not easy to cause damage to the anti-roll gyro.

[0033] In this embodiment, the anti-roll gyro further includes a hull bracket 2, a pressure sensor (not shown) is fixedly connected between the hull bracket 2 and the base frame 1, the pressure sensor is electrically connected to the PLC controller, and a plurality of pressure sensors are arranged at intervals along the horizontal plane, and the pressure sensors are suitable for overload detection of the anti-roll gyro.

[0034] In the above manner, when the anti-roll gyro is subjected to a large impact force, part of the impact force will be unloaded toward the hull bracket 2. When the part of the impact force exceeds the limit range of the anti-roll gyro, the pressure sensor sends a detection pressure value to the PLC controller, and the PLC controller compares the detected pressure value with the target pressure value, thereby controlling the drive motor 10 to turn on and off power to achieve the purpose of overload protection.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A gyro comprising a base frame (1), a flywheel frame (3) rotatably connected to the base frame (1), a flywheel (9) rotatably connected to the flywheel frame (3), and a drive motor (10) for driving the flywheel (9) to rotate, characterized in that: The flywheel frame (3) is a spherical component having a sealed cavity. The flywheel frame (3) is provided with an air nozzle (5) connected to the sealed cavity, and the air nozzle (5) is suitable for evacuating the sealed cavity. The stator of the drive motor (10) is fixedly connected to the inner bottom of the flywheel frame (3). One end of the flywheel (9) is rotatably connected to the top of the flywheel frame (3) through a first bearing (11), and the other end of the flywheel (9) is fixedly connected to the rotor of the drive motor (10). The flywheel frame (3) is respectively provided with a heat dissipation component (4) for dissipating heat from the first bearing (11) position and the drive motor (10).

2. The anti-roll gyro according to claim 1, characterized in that: The two heat dissipation components (4) are respectively arranged at the bottom and the top of the flywheel frame (3) along the axial direction of the drive motor (10), and the heat dissipation component (4) comprises a heat dissipation plate (42) and a heat dissipation end cover (41). The flywheel frame (3) is provided with a mounting portion (311), the heat dissipation plate (42) is fixedly connected to the mounting portion (311) by a first bolt, and the heat dissipation end cover (41) is fixedly connected to the heat dissipation plate (42) by a second bolt. A plurality of annular grooves (411) are concentrically arranged at one end of the heat dissipation plate (42) close to the heat dissipation end cover (41), and a notch (412) for radially opening the plurality of annular grooves (411) is provided on the heat dissipation plate (42).

3. The anti-roll gyro according to claim 2, characterized in that: Heat dissipation silicone grease is arranged in the annular groove (411).

4. The anti-roll gyro according to claim 1, characterized in that: One side of the flywheel frame (3) is rotatably connected to the base frame (1) via a second bearing (12); a gear reducer (6) is fixedly connected to the side of the base frame (1) away from the second bearing (12); and an output end of the gear reducer (6) is fixedly connected to the other side of the flywheel frame (3).

5. The anti-roll gyro according to claim 2, characterized in that: The flywheel frame (3) comprises two hemispherical components (31), the relative positions of the two hemispherical components (31) are respectively fixedly connected with connecting rings (312), the two connecting rings (312) are connected and fixed by a third bolt, and a sealing ring is also arranged between the two connecting rings (312), and a reinforcing rib (313) is respectively arranged on the outer wall of each hemispherical component (31), the reinforcing rib (313) is fitted with the hemispherical component (31) and the two ends are respectively connected between the mounting portion (311) and the connecting ring (312), and the two hemispherical components (31) are both made of metal material with heat conductivity.

6. The anti-roll gyro according to claim 1, characterized in that: The flywheel frame (3) can precess around the second bearing (12) within a precession angle range of -90° to 90°. The base frame (1) is provided with a buffer rod (8) for buffering the flywheel frame (3) precessing to -90° and 90°. An impact block (7) is fixed to the flywheel frame (3). The impact block (7) can collide with the buffer rod (8) when the flywheel frame (3) precesses to -90° and 90°.

7. The gyro according to claim 1, characterized in that: The anti-roll gyro further comprises a hull bracket (2), a pressure sensor being fixedly connected between the hull bracket (2) and the bottom frame (1), a plurality of the pressure sensors being arranged at intervals along a horizontal plane, and the pressure sensors being suitable for overload detection of the anti-roll gyro.

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