Shaftless gyroscope rotor and gyroscope

The shaftless rotating wheel, supported by a hydrostatic bearing and a shaftless design, solves the problem of complex rotating shaft structures, achieving simplified processing, reduced energy consumption, and improved heat dissipation.

CN224066148UActive Publication Date: 2026-03-31SHANGHAI JIWU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing gyroscopes have complex rotating shaft structures, high requirements for machining and assembly, and difficulties in power arrangement and heat dissipation.

Method used

It adopts a shaftless design, using an external rotor motor to drive a shaftless rotating wheel, and supports the rotation through a hydrostatic bearing, eliminating the traditional rotating shaft, and combining a non-contact lubrication film and a closed cavity structure.

Benefits of technology

The structure was simplified, the assembly difficulty was reduced, the manufacturing economy was improved, the energy consumption was reduced, and the heat dissipation capacity and system reliability were enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gyroscopes, in particular to a shaftless gyrorotor and a gyroscope thereof, and the shaftless gyrorotor comprises a shell, a first rotor, a second rotor and a third rotor, and the shell is formed by connecting a first shell body and a second shell body; the shaftless rotating wheel is arranged in the shell; the hydrostatic bearing is mounted between the end face of the shaftless rotating wheel and the shell and used for supporting high-speed rotation of the shaftless rotating wheel; the outer rotor motor comprises a motor outer rotor and a motor inner stator, the motor outer rotor is fixed to the shaftless rotating wheel, the motor inner stator is fixed to the second shell and used for driving the shaftless rotating wheel to rotate, the structure of a rotating shaft is omitted, and arrangement of a gyroscope heat dissipation structure and a power structure is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of gyroscope technology, and in particular to an shaftless gyroscope rotor and the gyroscope thereof. Background Technology

[0002] Gyroscopes are widely used in aviation, aerospace, and marine fields. The different applications of gyroscopes in various fields lead to variations in their structures, but their basic structure consists of a rotating shaft combined with a rotating wheel, which rotates at high speed under the drive of an electric motor or hydraulic motor, thereby generating a sufficiently large angular momentum.

[0003] However, this high-speed rotor has a complex structure, which places high demands on processing and assembly. High-precision bearings are usually required. In addition, the power arrangement and heat dissipation of gyroscopes using this type of rotor are not easy to solve. Utility Model Content

[0004] In view of the above-mentioned shortcomings of current gyroscope rotors, this utility model provides an shaftless gyroscope rotor and gyroscope, which omits the structure of the rotating shaft, thus facilitating the arrangement of the gyroscope's heat dissipation structure and power structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, an shaftless gyroscope rotor is provided, comprising:

[0007] The outer shell is formed by connecting a first shell and a second shell;

[0008] A shaftless rotating wheel is disposed inside the housing;

[0009] A hydrostatic bearing is installed between the end face of the shaftless rotating wheel and the housing to support the high-speed rotation of the shaftless rotating wheel;

[0010] An external rotor motor includes an external rotor and an inner stator. The external rotor is fixed to the shaftless rotating wheel, and the inner stator is fixed to the second housing, for driving the shaftless rotating wheel to rotate.

[0011] Optionally, the hydrostatic bearings are symmetrically distributed on both ends of the shaftless rotating wheel, and their bearing direction is perpendicular to the rotation axis of the shaftless rotating wheel.

[0012] Optionally, the hydrostatic bearing forms a non-contact lubricating film between the end face of the shaftless rotating wheel and the gyroscope housing using lubricant to reduce frictional losses during rotation.

[0013] Optionally, a heat dissipation channel is provided between the first housing and the second housing.

[0014] Optionally, the outer casing is formed by fastening the first casing and the second casing together with bolts to form a closed cavity.

[0015] Optionally, the first housing and the second housing are connected by at least three evenly distributed bolts.

[0016] Optionally, the inner stator of the motor is fixed to the inside of the second housing by screws.

[0017] Optionally, the outer rotor of the motor is connected to the shaftless rotating wheel by an interference fit or screws.

[0018] According to a second aspect of the present invention, a gyroscope is provided, comprising the aforementioned shaftless gyroscope rotor.

[0019] The advantages of this invention are as follows: Firstly, the traditional rotating shaft is omitted, and an external rotor motor is used, which greatly simplifies the structure of the gyroscope rotor and makes it easier to arrange the heat dissipation and power structures of the gyroscope. Secondly, it can significantly reduce the assembly difficulty of the gyroscope rotor and improve the economic efficiency of manufacturing the gyroscope rotor. Finally, a hydrostatic bearing is used on the end face of the rotating wheel, which greatly reduces the energy consumption of the gyroscope operation and improves the bearing capacity compared with traditional bearings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an shaftless gyroscope rotor according to the present invention;

[0022] In the diagram: 1. First housing; 2. Bolt; 3. Second housing; 4. Shaftless rotating wheel; 5. Hydrostatic bearing; 6. Screw; 7. Motor outer rotor; 8. Motor inner stator. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] like Figure 1 As shown, an shaftless gyroscope rotor includes: a housing, formed by connecting a first housing 1 and a second housing 3; a shaftless rotating wheel 4 disposed inside the housing; a hydrostatic bearing 5 installed between the end face of the shaftless rotating wheel 4 and the housing, for supporting the high-speed rotation of the shaftless rotating wheel 4; and an external rotor motor, including an external rotor 7 and an internal stator 8, wherein the external rotor 7 is fixed to the shaftless rotating wheel 4 and the internal stator 8 is fixed to the second housing 3, for driving the shaftless rotating wheel 4 to rotate.

[0026] Specifically, a closed outer shell is formed by bolts 2 connecting the first housing 1 and the second housing 3. The shaftless rotating wheel 4 is supported at its end face by a hydrostatic bearing 5 and is directly driven to rotate at high speed by an external rotor motor to generate the required angular momentum. This eliminates the need for a traditional rotating shaft, simplifies the structure, and reduces problems such as friction, wear, and vibration caused by the shaft system, thereby improving the reliability and stability of the system. The hydrostatic bearing 5 provides good support and lubrication, reducing frictional losses during rotation and helping to improve the rotational efficiency and service life of the shaftless rotating wheel 4. The design of the external rotor motor allows the motor's power output to act directly on the shaftless rotating wheel 4, resulting in high transmission efficiency and fast response speed.

[0027] Example 2:

[0028] like Figure 1 As shown, an shaftless gyroscope rotor includes: a housing, formed by connecting a first housing 1 and a second housing 3; a shaftless rotating wheel 4 disposed inside the housing; a hydrostatic bearing 5 installed between the end face of the shaftless rotating wheel 4 and the housing, for supporting the high-speed rotation of the shaftless rotating wheel 4; and an external rotor motor, including an external rotor 7 and an internal stator 8, wherein the external rotor 7 is fixed to the shaftless rotating wheel 4 and the internal stator 8 is fixed to the second housing 3, for driving the shaftless rotating wheel 4 to rotate.

[0029] Specifically, a closed outer shell is formed by bolts 2 connecting the first housing 1 and the second housing 3. The shaftless rotating wheel 4 is supported at its end face by a hydrostatic bearing 5 and is directly driven to rotate at high speed by an external rotor motor to generate the required angular momentum. This eliminates the need for a traditional rotating shaft, simplifies the structure, and reduces problems such as friction, wear, and vibration caused by the shaft system, thereby improving the reliability and stability of the system. The hydrostatic bearing 5 provides good support and lubrication, reducing frictional losses during rotation and helping to improve the rotational efficiency and service life of the shaftless rotating wheel 4. The design of the external rotor motor allows the motor's power output to act directly on the shaftless rotating wheel 4, resulting in high transmission efficiency and fast response speed.

[0030] Furthermore, the hydrostatic bearings 5 ​​are symmetrically distributed on both ends of the shaftless rotating wheel 4, and their bearing direction is perpendicular to the rotation axis of the shaftless rotating wheel 4. This distribution ensures that the supporting force on both ends of the shaftless rotating wheel 4 is uniform during rotation, effectively balancing the radial force generated by the shaftless rotating wheel 4 during high-speed rotation and ensuring its rotational stability.

[0031] Furthermore, the hydrostatic bearing 5 forms a non-contact lubricating film between the end face of the shaftless rotating wheel 4 and the gyroscope housing using lubricant, thereby reducing frictional losses during rotation. Under pressure, the lubricant is delivered into the gap between the shaftless rotating wheel 4 and the housing, forming a continuous liquid film with a certain load-bearing capacity. This prevents direct contact between the shaftless rotating wheel 4 and the housing, thus reducing friction during rotation, minimizing energy loss, improving the rotational efficiency of the shaftless rotating wheel 4, reducing power consumption, extending the service life of both the shaftless rotating wheel 4 and the hydrostatic bearing 5, and lowering maintenance costs.

[0032] Furthermore, a heat dissipation channel is provided between the first housing 1 and the second housing 3. Effective heat dissipation can prevent the shaftless gyroscope rotor from experiencing performance degradation due to excessive temperature, thereby improving the reliability and stability of the system.

[0033] Furthermore, the outer shell is formed by fastening the first housing 1 and the second housing 3 together with bolts 2, creating a closed cavity. This closed cavity provides a good working environment for the internal components, reduces the impact of external factors on the components, and improves the reliability and stability of the system.

[0034] Furthermore, the first housing 1 and the second housing 3 are connected by at least three evenly distributed bolts 2. The evenly distributed bolt connection improves the reliability and stability of the housing connection, ensures the sealing of the enclosed cavity, and can withstand greater external forces and torques.

[0035] Furthermore, the inner stator 8 of the motor is fixed to the inner side of the second housing 3 by screws 6. The tightening action of the screws 6 firmly installs the inner stator 8 of the motor onto the second housing 3, ensuring that the inner stator 8 is fixed in position during operation and will not shift or shake, making the operation of the motor more reliable and improving the working efficiency and performance of the external rotor motor.

[0036] Furthermore, the outer rotor 7 of the motor and the shaftless rotating wheel 4 are connected by an interference fit or screws. The interference fit or screw connection ensures that the outer rotor 7 of the motor and the rotating wheel rotate synchronously, ensuring reliable connection and high torque transmission efficiency.

[0037] Example 3:

[0038] This embodiment provides a gyroscope comprising the aforementioned shaftless gyroscope rotor. The shaftless design results in a compact and lightweight overall structure, and offers advantages such as low overall energy consumption, excellent heat dissipation, and low maintenance costs, making it suitable for precision applications in aviation, aerospace, and marine fields.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An axisless gyro rotor, characterized by The application relates to a shaftless gyro rotor, comprising: a housing connected by a first shell and a second shell; a shaftless rotating wheel arranged in the housing; a hydrostatic bearing installed between the end face of the shaftless rotating wheel and the housing for supporting high-speed rotation of the shaftless rotating wheel; an outer rotor motor comprising a motor outer rotor and a motor inner stator, the motor outer rotor being fixed on the shaftless rotating wheel, and the motor inner stator being fixed on the second shell for driving the shaftless rotating wheel to rotate.

2. The shaftless gyro rotor of claim 1, wherein, The hydrostatic bearings are symmetrically distributed on the two end faces of the shaftless rotating wheel, and the bearing direction is perpendicular to the rotation axis of the shaftless rotating wheel.

3. The shaftless gyro rotor of claim 2, wherein, The hydrostatic bearings form a non-contact lubricating film between the end face of the shaftless rotating wheel and the gyro housing through lubricating liquid, so as to reduce friction loss in the rotating process.

4. The shaftless gyro rotor of claim 1, wherein, A heat dissipation channel is arranged between the first shell and the second shell.

5. The shaftless gyro rotor of claim 1, wherein, The housing is connected by bolt fastening of the first shell and the second shell to form a closed cavity.

6. The shaftless gyro rotor of claim 5, wherein, The first shell and the second shell are connected by at least three uniformly distributed bolts.

7. The shaftless gyro rotor of claim 1, wherein, The motor inner stator is fixed on the inner side of the second shell by a screw.

8. The shaftless gyro rotor of claim 1, wherein, The motor outer rotor and the shaftless rotating wheel are connected by interference fit or a screw.

9. A gyroscope, characterized by The shaftless gyro rotor comprises the shaftless gyro rotor of any one of claims 1-8.