Shaftless gyroscope rotor and gyroscope
By using a shaftless design and a shaftless rotating wheel driven by a hydraulic motor, the problems of complex gyroscope rotor structure and high energy consumption are solved, achieving the effects of simplified processing, reduced costs and improved rotational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIWU TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-17
AI Technical Summary
Existing gyroscopes have complex rotor structures, are difficult to manufacture and assemble, have challenges in power arrangement and heat dissipation, and consume a lot of energy.
It adopts a shaftless design, using balls and cages to support the shaftless rotating wheel, combined with a hydraulic motor as the power source, eliminating the rotating shaft and increasing the bearing size, simplifying the structure and improving the load-bearing capacity.
It simplifies the processing and assembly process, reduces manufacturing costs and energy consumption, shortens start-up time, and improves rotational stability and precision.
Smart Images

Figure CN224136623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gyroscope technology, and in particular to an shaftless gyroscope rotor and gyroscope. 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 rotation axis, greatly simplifies the structure of the gyroscope rotor, significantly reduces the assembly difficulty and manufacturing cost of the gyroscope rotor, and at the same time reduces energy consumption and shortens the startup time of the gyroscope.
[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: a first housing, a second housing, a shaftless rotating wheel, a support assembly, and a hydraulic motor; the first housing and the second housing are connected to form an outer shell, the shaftless rotating wheel is assembled inside the outer shell by the support assembly, the support assembly includes balls and a cage, and the hydraulic motor is fixed to the outer shell and provides power to the shaftless rotating wheel.
[0007] Optionally, the balls and cages are symmetrically distributed on both ends of the shaftless rotating wheel.
[0008] Optionally, the first housing and the second housing can be detachably connected by bolts to form a closed cavity.
[0009] Optionally, the first housing and the second housing are connected by at least three evenly distributed bolts.
[0010] Optionally, the size of the balls and cage is larger than the bearing size of a gyroscope rotor of the same specification.
[0011] Optionally, the axis of rotation of the shaftless rotating wheel is coaxial with the output axis of the hydraulic motor.
[0012] Optionally, the hydraulic motor is connected to the threaded hole of the second housing via screws.
[0013] Optionally, the shaftless rotating wheel is connected to the output shaft of the hydraulic motor via a keyway and spline connection.
[0014] According to a second aspect of the present invention, a gyroscope is provided, comprising the aforementioned shaftless gyroscope rotor.
[0015] The advantages of this invention are as follows: Firstly, the elimination of the rotating shaft greatly simplifies the structure of the gyroscope rotor. Simultaneously, the high-precision bearings that should have been mounted on the rotating shaft are replaced with balls and cages mounted on the end face of the shaftless rotating wheel. This increases the bearing size within the same specifications as the gyroscope rotor, enhancing its load-bearing capacity and simplifying processing and assembly. Secondly, the use of a hydraulic motor as the prime mover results in high transmission efficiency, smooth operation, and excellent performance under high load and high speed. Furthermore, its rapid response, precise control, and wide speed range significantly shorten the gyroscope's start-up time. Attached Figure Description
[0016] 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.
[0017] Figure 1 This is a schematic diagram of the structure of the shaftless gyroscope rotor described in this utility model;
[0018] In the diagram: 1. First housing; 2. Bolt; 3. Third housing; 4. Shaftless rotating wheel; 5. Ball bearings and cage; 6. Screw; 7. Hydraulic motor. Detailed Implementation
[0019] 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.
[0020] Example 1:
[0021] like Figure 1As shown, an shaftless gyroscope rotor includes: a first housing 1, a second housing 3, a shaftless rotating wheel 4, a support assembly, and a hydraulic motor 7; the first housing 1 and the second housing 3 are connected to form an outer shell, the shaftless rotating wheel 4 is assembled inside the outer shell through the support assembly, the support assembly includes balls and a retainer 5, and the hydraulic motor 7 is fixed on the outer shell and provides power to the shaftless rotating wheel 4.
[0022] Specifically, the first housing 1 and the second housing 3 are connected to form a closed outer shell, providing a support frame for the shaftless rotating wheel 4. The shaftless rotating wheel 4 is assembled inside the outer shell by ball bearings and a cage 5. The ball bearings are evenly distributed under the constraint of the cage, allowing the shaftless rotating wheel 4 to rotate at high speed around its own axis inside the outer shell, thereby generating angular momentum. The hydraulic motor 7 is fixed to the outer shell and drives the shaftless rotating wheel 4 to rotate by outputting power. The rotating shaft of the traditional gyroscope is eliminated, and the high-precision bearing is replaced by ball bearings and a cage 5 located on the end face of the shaftless rotating wheel 4, simplifying the structure of the gyroscope rotor. Using the hydraulic motor 7 as the power source results in high transmission efficiency and smooth operation, maintaining performance under high load and high speed, and shortening the gyroscope startup time. It also significantly reduces the assembly difficulty and manufacturing cost of the gyroscope rotor.
[0023] Example 2:
[0024] like Figure 1 As shown, an shaftless gyroscope rotor includes: a first housing 1, a second housing 3, a shaftless rotating wheel 4, a support assembly, and a hydraulic motor 7; the first housing 1 and the second housing 3 are connected to form an outer shell, the shaftless rotating wheel 4 is assembled inside the outer shell through the support assembly, the support assembly includes balls and a retainer 5, and the hydraulic motor 7 is fixed on the outer shell and provides power to the shaftless rotating wheel 4.
[0025] Specifically, the first housing 1 and the second housing 3 are connected to form a closed outer shell, providing a support frame for the shaftless rotating wheel 4. The shaftless rotating wheel 4 is assembled inside the outer shell by ball bearings and a cage 5. The ball bearings are evenly distributed under the constraint of the cage, allowing the shaftless rotating wheel 4 to rotate at high speed around its own axis inside the outer shell, thereby generating angular momentum. The hydraulic motor 7 is fixed to the outer shell and drives the shaftless rotating wheel 4 to rotate by outputting power. The rotating shaft of the traditional gyroscope is eliminated, and the high-precision bearing is replaced by ball bearings and a cage 5 located on the end face of the shaftless rotating wheel 4, simplifying the structure of the gyroscope rotor. Using the hydraulic motor 7 as the power source results in high transmission efficiency and smooth operation, maintaining performance under high load and high speed, and shortening the gyroscope startup time. It also significantly reduces the assembly difficulty and manufacturing cost of the gyroscope rotor.
[0026] Furthermore, the balls and cages 5 are symmetrically distributed on both ends of the shaftless rotating wheel 4. With the balls and cages 5 symmetrically distributed on both ends of the shaftless rotating wheel 4, during rotation, the balls and cages 5 at both ends can evenly bear radial and axial loads, ensuring that the shaftless rotating wheel 4 rotates stably around the central axis, avoiding vibration or offset caused by uneven force, improving the stability and accuracy of the gyroscope rotor during rotation, and enhancing the overall load-bearing capacity of the structure.
[0027] Furthermore, the first housing 1 and the second housing 3 are detachably connected by bolts 2 to form a closed cavity. The bolt connection provides sufficient fastening force to ensure the sealing and structural strength of the housing, while facilitating disassembly and maintenance.
[0028] Furthermore, the first housing 1 and the second housing 3 are connected by at least three evenly distributed bolts 2. The multiple bolts 2 are evenly distributed on the connection interface of the housings, so that the connection force is evenly transmitted, avoiding local stress concentration and ensuring the overall structural strength and stability of the housing.
[0029] Furthermore, the dimensions of the ball bearings and cage 5 are larger than those of the bearings of a gyroscope rotor of the same specifications. With gyroscope rotors of similar specifications, the larger dimensions of the ball bearings and cage 5 allow them to withstand greater radial and axial loads while reducing pressure per unit area and lowering frictional losses.
[0030] Furthermore, the rotation axis of the shaftless rotating wheel 4 is coaxially arranged with the output axis of the hydraulic motor 7. The power of the hydraulic motor 7 can be directly transmitted to the shaftless rotating wheel 4 along the axial direction, avoiding transmission errors or additional torque caused by axis misalignment. The coaxial arrangement can improve power transmission efficiency, reduce energy loss and vibration, make the rotation of the shaftless rotating wheel 4 more stable, and improve the overall accuracy and stability of the gyroscope.
[0031] Furthermore, the hydraulic motor 7 is connected to the threaded hole of the second housing 3 via a screw 6. The screw 6 passes through the mounting hole of the hydraulic motor 7 and is screwed into the threaded hole of the second housing 3 to fix the hydraulic motor 7 to the housing, ensuring that the output axis of the hydraulic motor 7 is coaxial with the rotation axis of the shaftless rotating wheel 4. The screw connection method is simple in structure and easy to install, and can realize the quick fixing and disassembly of the hydraulic motor 7.
[0032] Furthermore, the shaftless rotating wheel 4 is connected to the output shaft of the hydraulic motor 7 via a keyway and spline connection. The keyway and spline connection provides high strength and transmission accuracy, and can withstand large torques, ensuring that the shaftless rotating wheel 4 remains synchronized with the hydraulic motor 7 during high-speed rotation, thereby improving the reliability of power transmission.
[0033] Example 3:
[0034] 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.
[0035] 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. A shaftless gyro rotor, characterized by include: First housing, second housing, shaftless rotating wheel, support assembly and hydraulic motor; The first housing and the second housing are connected to form an outer shell. The shaftless rotating wheel is assembled inside the outer shell through a support assembly, which includes balls and a retainer. The hydraulic motor is fixed to the outer shell and provides power to the shaftless rotating wheel.
2. The shaftless gyro rotor of claim 1, wherein, The balls and cages are symmetrically distributed on both ends of the shaftless rotating wheel.
3. The shaftless gyro rotor of claim 1, wherein, The first housing and the second housing are detachably connected by bolts to form a closed cavity.
4. The shaftless gyro rotor of claim 3, wherein, The first housing and the second housing are connected by at least three evenly distributed bolts.
5. The shaftless gyro rotor of claim 1, wherein, The dimensions of the balls and cage are larger than the bearing dimensions of a gyroscope rotor of the same specifications.
6. The shaftless gyroscope rotor according to claim 1, characterized in that, The axis of rotation of the shaftless rotating wheel is coaxial with the output axis of the hydraulic motor.
7. The shaftless gyro rotor of claim 1, wherein, The hydraulic motor is connected to the threaded hole of the second housing via screws.
8. The shaftless gyro rotor of claim 1, wherein, The shaftless rotating wheel is connected to the output shaft of the hydraulic motor via a keyway and spline.
9. A gyroscope, characterized by It includes the shaftless gyroscope rotor as described in any one of claims 1-8.