An integrated dual-drive coaxial gear system and transmission method and application

Abstract

The present invention relates to an integrated dual-drive coaxial gear system and a transmission method and application, belonging to the technical field of transmission devices. The problem that the structure of the transmission system affects the installation and overall layout is solved. It includes a first planetary gear transmission, a second planetary gear transmission, a first drive, a first clutch, a second drive and a second clutch, wherein the first drive, the first planetary gear transmission, the first clutch, the second drive, the second clutch and the second planetary gear transmission are arranged in sequence, the first drive, the first planetary gear transmission and the first clutch are connected in sequence, and the second drive, the second clutch and the second planetary gear transmission are connected in sequence. The present invention does not require modification of the ship, and can directly replace the low-speed direct-drive motor used on the ship, thereby solving the problems of large size and high noise, reducing the load on the ship, and is beneficial to the overall layout of the ship, and can provide more loading space and loading capacity.

Description

Technical Field

[0001] The invention relates to a dual-drive coaxial gear system and a transmission method and application, belonging to the technical field of transmission devices. Background Art

[0002] Motor direct drive means directly driving the load without going through a transmission device such as a transmission belt, etc. It has the characteristics of short transmission chain, stable operation, and relatively high efficiency. It is widely used in wind power generation, petrochemical, mining machinery, cement, transportation, lifting equipment and other fields. Gear transmission refers to a device that transmits motion and power through a gear pair, and works by meshing teeth. It is the most widely used mechanical transmission and power transmission method in various modern equipment, and plays an important role in the fields of automobiles, ships, aerospace, aviation, petrochemicals, transportation, mining, etc.

[0003] With the continuous improvement of demand in various fields, the motor is developing towards high torque, high power, high efficiency and compactness. In particular, low-speed motors are large in size, heavy in weight, and relatively inefficient over a wide speed range, which can cause serious energy waste and bring great inconvenience to use.

[0004] The publication number is CN116691312A, and the name of the invention is dual-motor coaxial longitudinal hybrid power transmission system, its assembly method, and vehicle. Its technical solution discloses that the radial dimensions of the generator and the drive motor are consistent, and the radial dimensions of the generator housing and the drive motor housing are consistent, achieving a simple and compact structure; however, it is suitable for vehicles, and the gearbox layout causes the volume to increase, affecting the installation and overall layout.

[0005] Therefore, it is urgent to propose an integrated dual-drive coaxial gear system and a transmission method and application to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the transmission system structure affects the installation and overall layout, and to provide an integrated dual-drive coaxial gear system and a transmission method and application. A brief overview of the present invention is given below to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify the key or important parts of the present invention, nor is it intended to limit the scope of the present invention.

[0007] The technical solution of the present invention:

[0008] An integrated dual-drive coaxial gear system includes a first planetary gear transmission, a second planetary gear transmission, a first drive, a first clutch, a second drive and a second clutch. The first drive, the first planetary gear transmission, the first clutch, the second drive, the second clutch and the second planetary gear transmission are arranged in sequence. The first drive, the first planetary gear transmission and the first clutch are connected in sequence. The second drive, the second clutch and the second planetary gear transmission are connected in sequence.

[0009] Preferably: the first planetary gear transmission includes a first sun gear, a first planetary gear, a first inner ring gear and a first rotating shaft, the first drive is connected to the first sun gear, the first sun gear is meshed with the first inner ring gear through the first planetary gear, and the first rotating shaft is arranged at the axial position of the first inner ring gear.

[0010] Preferably: the second planetary gear transmission includes a second sun gear, a second planetary gear, a second planetary carrier, a second inner gear ring and a second rotating shaft, the rotating shaft of the second drive is a hollow shaft, and the second rotating shaft is arranged in the hollow shaft of the second drive; one end of the second rotating shaft is connected to the first rotating shaft through a first clutch, the second rotating shaft passes through the second planetary carrier, and the rotating shaft is connected to the second sun gear through the second clutch, the second planetary carrier is provided with a second planetary gear, and the second sun gear is meshed with the second inner gear ring through the second planetary gear.

[0011] Preferably: it also includes a first coupling, a first brake, a second brake, a second coupling and a mounting frame, the mounting frame is connected to the first drive, the first planetary gear and the second drive, the first drive is connected to the first sun gear through the first coupling, the first rotating shaft is connected to the first clutch through the first brake, the rotating shaft of the second drive is connected to the second clutch through the second brake, the second rotating shaft is connected to the load through the second coupling, and the second inner ring is fixedly connected to the mounting frame.

[0012] Preferably: the first drive and the second drive are detachably connected to the mounting frame by bolts; the first planetary gear transmission also includes a first planetary carrier, the first planetary carrier is fixedly connected to the mounting frame, the first planetary carrier is rotatably connected to the first planetary gear, and the wheels in the present invention are all gears.

[0013] A transmission method of an integrated dual-drive coaxial gear transmission system, comprising a first single drive method, a second single drive method and a combined drive method;

[0014] The first single drive method: the first clutch is engaged and the second clutch is disengaged, so that the first drive alone drives the load;

[0015] Second single drive method: by engaging the second clutch and disengaging the first clutch, the second drive is realized to drive the load alone;

[0016] Combined drive method: The clutch and the clutch are engaged at the same time to achieve simultaneous driving of the motor and the motor, and coaxial power to jointly drive the load.

[0017] An application of an integrated dual-drive coaxial gear system includes the integrated dual-drive coaxial gear system.

[0018] The present invention has the following beneficial effects:

[0019] (1) The present invention has a large transmission ratio, high transmission power and high transmission efficiency.

[0020] (2) The present invention has small size, light weight, high power density and high integration.

[0021] (3) The present invention can realize coaxial transmission.

[0022] (4) The present invention is suitable for power systems with high torque, high power, high efficiency, and high power density.

[0023] (5) The present invention does not require modification of the ship and can directly replace the low-speed direct-drive motor used on the ship, thereby solving the problems of large size and high noise, reducing the load on the ship, and being beneficial to the overall layout of the ship, thereby providing more loading space and loading capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structural principle of the integrated dual-drive coaxial gear system of the present invention.

[0025] Figure 1 In: 1-first drive, 2-first coupling, 3-first sun gear, 4-first planetary carrier, 5-first planetary gear, 6-first internal gear ring, 7-first brake, 8-first clutch, 9-second drive, 10-second brake, 11-second clutch, 12-second sun gear, 13-second planetary gear, 14-second planetary carrier, 15-second internal gear ring, 16-second coupling, 17-load, 18-mounting frame, 19, 20, 21, 22-bolts, 23-first shaft, 24-second shaft, I-first planetary gear transmission, II-second planetary gear transmission. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] Specific implementation method 1: Combination Figure 1The present embodiment is described. An integrated dual-drive coaxial gear system of the present embodiment comprises a first planetary gear transmission I, a second planetary gear transmission II, a first drive 1, a first clutch 8, a second drive 9 and a second clutch 11. The first drive 1, the first planetary gear transmission I, the first clutch 8, the second drive 9, the second clutch 11, the second planetary gear transmission II and the load 17 are sequentially coaxially arranged. The first drive 1, the first planetary gear transmission I, the first clutch 8 and the load are sequentially connected. The second drive 9, the second clutch 11, the second planetary gear transmission II and the load are sequentially connected. The present invention has a large transmission ratio, high transmission power, high transmission efficiency and high integration, and can realize coaxial transmission. The present invention can be used according to the use requirements of efficiency, volume, weight and the like. The two motors can adopt the first drive 1 as a high-power motor and the second drive 9 as a low-power motor, or the second drive 9 as a high-power motor and the first drive 1 as a low-power motor. The present invention can be applied to occasions of switching between large and small powers. The power adjustment range is large, and the phenomenon of "big horse pulling a small cart" is prevented when the load rate is low, thereby avoiding a huge waste of electric energy.

[0028] The first planetary gear transmission 1 comprises a first sun gear 3, a first planetary gear 5, a first inner gear ring 6 and a first rotating shaft 23, wherein the first drive 1 is connected to the first sun gear 3, the first sun gear 3 is meshed with the first inner gear ring 6 through the first planetary gear 5, a radially arranged support rod is welded on the right side of the first inner gear ring 6, and one end of the first rotating shaft 23 is fixedly arranged at the axial center position of the first inner gear ring 6 through the support rod;

[0029] The second planetary gear transmission II includes a second sun gear 12, a second planetary gear 13, a second planet carrier 14, a second inner gear ring 15 and a second rotating shaft 24. The rotating shaft 25 of the second drive 9 is a hollow shaft with an axial through hole. The second rotating shaft 24 is coaxially connected with the hollow shaft through a bearing, and the middle part of the second rotating shaft 24 is arranged in the hollow shaft of the second drive 9; one end of the second rotating shaft 24 is connected with the other end of the first rotating shaft 23 through the first clutch 8, and the other end of the second rotating shaft 24 passes through the second sun gear 12 and the axis of the second planet carrier 14 to be connected with the load 17. The second rotating shaft 24 is fixedly connected to the second planet carrier 14, and the second rotating shaft 24 does not contact the second sun gear 12. The rotating shaft 25 is connected to the second sun gear 12 through the second clutch 11. The second planet carrier 14 is provided with a second planetary gear 13 connected in rotation. The second sun gear 12 is meshed with the second inner gear ring 15 through the second planetary gear 13. A plurality of second planetary gears 13 are arranged in a circumferential array with the axis of the second planet carrier 14 as the center.

[0030] It also includes a first coupling 2, a first brake 7, a second brake 10, a second coupling 16 and a mounting frame 18, wherein the mounting frame 18 is connected to the first drive 1, the first planetary gear 5 and the second drive 9, the rotating shaft of the first drive 1 is connected to the first sun gear 3 through the first coupling 2, the first rotating shaft 23 is connected to the first clutch 8 through the first brake 7, the rotating shaft 25 of the second drive 9 is connected to the second clutch 11 through the second brake 10, the second clutch 11 is connected to the second sun gear 12 through another shaft with a through hole in the middle, the other end of the second rotating shaft 24 is connected to the load 17 through the second coupling 16, the load is a ship propeller, and the second inner gear ring 15 is fixedly connected to the mounting frame 18;

[0031] The first drive 1 and the second drive 9 are detachably connected to the mounting frame 18 by bolts; the first planetary gear transmission I also includes a first planetary carrier 4, which is fixedly connected to the mounting frame 18, and the first planetary carrier 4 is rotatably connected to the first planetary gear 5. The wheels in the present invention are all gears, the first planetary carrier 4 is a gear mounting frame welded to the mounting frame 18, and the first planetary gear 5 is a pinion. The axis of the gear is arranged parallel to the second rotating shaft 24, and the axis of the rotating shaft of the motor is coaxially arranged with the second rotating shaft 24.

[0032] Specific implementation method 2: Combination Figure 1 The present embodiment is described. The present embodiment is an integrated dual-drive coaxial gear system. The first planetary gear transmission I includes a first sun gear 3, a first planetary gear 5, a first inner ring gear 6 and a first rotating shaft 23. The first drive 1 is connected to the first sun gear 3. The first sun gear 3 is meshed with the first inner ring gear 6 through the first planetary gear 5. A radially arranged support rod is welded on the right side of the first inner ring gear 6. One end of the first rotating shaft 23 is fixedly arranged at the axial center position of the first inner ring gear 6 through the support rod.

[0033] Specific implementation method three: Combination Figure 1The present embodiment is described. The present embodiment is an integrated dual-drive coaxial gear system. The second planetary gear transmission II includes a second sun gear 12, a second planetary gear 13, a second planet carrier 14, a second inner gear ring 15 and a second rotating shaft 24. The rotating shaft 25 of the second drive 9 is a hollow shaft with an axial through hole. The second rotating shaft 24 is coaxially connected to the hollow shaft through a bearing. The middle part of the second rotating shaft 24 is arranged in the hollow shaft of the second drive 9; one end of the second rotating shaft 24 is connected to the other end of the first rotating shaft 23 through the first clutch 8, and the other end of the second rotating shaft 24 passes through the second sun gear 12 and the axis of the second planet carrier 14 to be connected to the load 17. The second rotating shaft 24 is fixedly connected to the second planet carrier 14, and the second rotating shaft 24 does not contact the second sun gear 12. The rotating shaft 25 is connected to the second sun gear 12 through the second clutch 11, and the second planet carrier 14 is provided with a rotatably connected second rotating shaft 23. The second planetary gears 13, the second sun gear 12 is meshed with the second inner ring 15 through the second planetary gears 13, and a plurality of second planetary gears 13 are arranged in a circumferential array with the axis of the second planet carrier 14 as the center. The small-volume first planetary gear transmission I and the second planetary gear transmission II are both single-stage transmissions, which complete efficient transmission in a limited space, provide higher torque output and a larger reduction ratio, adapt to different output requirements, improve operating efficiency, and have a reasonable and ingenious structure and are easy to maintain. The present invention can prevent motor overload, is safe and reliable, saves energy, and reduces construction and operation costs; or the second rotating shaft 24 is connected to the second planetary carrier 14 through a brake, and the second rotating shaft 24 and the second planetary carrier 14 can also be separated when the second clutch 11 is disconnected. The second rotating shaft 24 is connected to the right side wall of the installation box through a bearing, so that the first single driving method is a first-stage transmission, which runs smoothly, has high efficiency, and high torque.

[0034] Specific implementation method four: Combination Figure 1 The present embodiment is described. An integrated dual-drive coaxial gear system of the present embodiment also includes a first coupling 2, a first brake 7, a second brake 10, a second coupling 16 and a mounting frame 18. The mounting frame 18 is connected to the first drive 1, the first planetary gear 5 and the second drive 9. The rotating shaft of the first drive 1 is connected to the first sun gear 3 through the first coupling 2, the first rotating shaft 23 is connected to the first clutch 8 through the first brake 7, the rotating shaft 25 of the second drive 9 is connected to the second clutch 11 through the second brake 10, the second clutch 11 is connected to the second sun gear 12 through another shaft with a through hole in the middle, the other end of the second rotating shaft 24 is connected to the load 17 through the second coupling 16, and the load is a ship propeller. The second inner ring 15 is fixedly connected to the mounting frame 18; the first brake 7 and the second brake 10 can realize the fixing of the transmission parts to prevent the transmission parts from being damaged by unnecessary collision.

[0035] Specific implementation method five: Combination Figure 1The present embodiment is described. The present embodiment is an integrated dual-drive coaxial gear system. The first drive 1 and the second drive 9 are detachably connected to the mounting frame 18 by bolts. The first planetary gear transmission I also includes a first planetary carrier 4, which is fixedly connected to the mounting frame 18. The first planetary carrier 4 is rotatably connected to the first planetary gear 5. The wheels in the present invention are all gears. The first planetary carrier 4 is a gear mounting frame welded to the mounting frame 18. The first planetary gear 5 is a pinion. The axis of the gear is arranged parallel to the second rotating shaft 24. The axis of the rotating shaft of the motor is parallel to the second rotating shaft 24. The shaft 24 is coaxially arranged; a transmission mode is adopted in which the first planetary carrier 4 is fixed, the first sun gear 3 is input, and the first inner gear ring 6 is output, and the first drive 1 is connected to the first sun gear 3 through the first coupling 2; a mode is adopted in which the second inner gear ring 15 is fixed, the second sun gear 12 is input, and the second planetary carrier 14 is output, and the second drive 9 is connected to the second sun gear 12 through the second clutch 11; the first drive 1 is fixed to the gear transmission device (mounting frame) by bolts 21 and bolts 22, and the second drive 9 is fixed to the gear transmission device by bolts 19 and bolts 20.

[0036] Specific implementation method six: Combination Figure 1 The present embodiment is described. The present embodiment is a transmission method of an integrated dual-drive coaxial gear transmission system. The power transmission route of the integrated dual-drive coaxial gear transmission system is divided into two routes: one route is engaged through the first clutch 8, and the first drive 1 drives the first sun gear 3 of the planetary gear transmission I. Through meshing, the first sun gear 3 drives the first inner ring 6, and the first inner ring 6 drives the load 17 through the first clutch 8 and the second coupling 16 to achieve power and speed transmission; the other route is engaged through the second clutch 11, and the second drive 9 drives the second sun gear 12 of the planetary gear transmission (II). Through meshing, the first sun gear 3 drives the first inner ring 6, and the first inner ring 6 drives the load 17 through the first clutch 8 and the second coupling 16 to achieve power and speed transmission. The second sun gear 12 drives the second planetary carrier 14, and the second planetary carrier 14 drives the load 17 through the second coupling 16 to achieve power and speed transmission. The first clutch and the second clutch of the present invention both adopt mechanical overrunning clutches, that is, the publication number is CN103684114A, and the invention is named as a control system for paralleling and decoupling multiple motors with automatic synchronous clutches. The clutch in the technical solution can also adopt a multi-plate friction clutch, which can achieve automatic connection and disconnection without external control; a dual-drive coaxial arrangement is adopted to realize three transmission methods, including a first single drive method, a second single drive method and a combined drive method;

[0037] The first single drive method: the first clutch 8 is engaged, the second clutch 11 is disengaged, the first drive 1 is output through the first planetary gear transmission I, and the load 17 is driven through the first shaft 23 and the second shaft 24, so that the first drive 1 drives the load 17 alone; the power of the first drive 1 can be greater than the power of the second drive 9. If the second shaft 24 is not separated from the second planetary carrier 14, it is further supported by the existing second planetary gear transmission II, and the support points of the long shaft are increased, which plays a role in correction and deformation prevention, thereby improving the stability of the first drive 1 and the long shaft (the first shaft and the second shaft are connected by the first clutch to form the long shaft), and no other support is required, which reduces the quality and processing and maintenance difficulties. On the basis of reasonable layout, the power output by the first drive 1 is better utilized; the power of the first drive 1 can also be less than the power of the second drive 9, which can reduce the power required for the input motor; on the basis of ensuring that the installation box is small in size and uniform in shape, the radial size is reduced, and sufficient space is reserved in the axial direction, which is suitable for motors of various sizes, has better adaptability, and is convenient for replacement to cope with sudden emergencies on the ocean, and realizes adaptability to various models on the basis of compact structure;

[0038] The second separate driving method: the second clutch 11 is engaged, the first clutch 8 is disengaged, the second drive 9 drives the second planetary gear transmission II through the rotating shaft 25, and then the second rotating shaft 24 drives the load 17, so that the second drive 9 drives the load 17 alone; the second drive 9 can select a low-power motor, and can be separated from the first planetary gear transmission I during operation. The second separate driving method adopts a primary transmission, thereby reducing the mass, and on the basis of reducing noise and ensuring stability, better utilizing the power output by the second drive 9, with high efficiency and high torque;

[0039] Combined drive method: Clutch 3 and clutch 11 are engaged at the same time to achieve simultaneous driving of motor 1 and motor 9, and coaxial power combined drive of load 17; the invention has high precision and stability, can effectively reduce noise and vibration during the transmission process, thereby improving stability and reliability, and has high power density.

[0040] Specific implementation method seven: Combination Figure 1The present embodiment is described. The application of an integrated dual-drive coaxial gear system of the present embodiment includes the aforementioned integrated dual-drive coaxial gear system. The components in the present invention can be reasonably arranged inside a cylindrical or cubic installation box of a regular shape and equal diameter through a mounting frame. On the basis of improving energy utilization, it is not only small in size and light in weight, but also can prevent bumps and scratches with surrounding objects. It is easy to install and repair and maintain. It is suitable for the uninhabited sea. In the event of an emergency, it is easy to find replacement parts for self-rescue. At the same time, the utilization rate of output power is improved, thereby saving a lot of energy. The saved energy provides precious time and survival probability for people waiting for rescue on the ship. The present invention consists of a motor and a gear. The wheel transmission is integrated and driven by two motors. The two motors can be driven separately or jointly through a clutch. Compared with direct drive by a single motor, this integrated dual-drive coaxial gear motor device has significant advantages such as high integration, high power density, and high transmission efficiency. The present invention is suitable for power systems with large torque, high power, high efficiency, and high power density, and is especially suitable for occasions where low-speed and high-power motors are directly driven. It can be used for ship propulsion systems and pump stations without modification, and can directly replace the low-speed direct-drive motors used on ships, thereby solving the problems of large size and high noise, reducing the load on the ship, and having small vibrations that do not affect the stability of the ship. It is safer and is beneficial to the overall layout of the ship, and can provide more loading space and weight.

[0041] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined, and those skilled in the art can exhaust all possibilities based on the mathematical knowledge of arrangement and combination. Therefore, the present invention will no longer describe the technical solutions after arrangement and combination one by one, but it should be understood that the technical solutions after arrangement and combination have been disclosed by the present invention.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated dual-drive coaxial gear system, characterized in that: The integrated dual-drive coaxial gear system comprises a first planetary gear transmission (I), a second planetary gear transmission (II), a first drive (1), a first clutch (8), a second drive (9) and a second clutch (11), wherein the first drive (1), the first planetary gear transmission (I), the first clutch (8), the second drive (9), the second clutch (11) and the second planetary gear transmission (II) are arranged in sequence, the first drive (1), the first planetary gear transmission (I) and the first clutch (8) are connected in sequence, and the second drive (9), the second clutch (11) and the second planetary gear transmission (II) are connected in sequence; The first planetary gear transmission (I) comprises a first sun gear (3), a first planetary gear (5), a first inner gear ring (6) and a first rotating shaft (23), wherein the first drive (1) is connected to the first sun gear (3), the first sun gear (3) is meshed with the first inner gear ring (6) through the first planetary gear (5), and the first rotating shaft (23) is arranged at the axial center position of the first inner gear ring (6); The second planetary gear transmission (II) comprises a second sun gear (12), a second planetary gear (13), a second planet carrier (14), a second inner gear ring (15) and a second rotating shaft (24); the rotating shaft (25) of the second drive (9) is a hollow shaft, and the second rotating shaft (24) is arranged in the hollow shaft of the second drive (9); one end of the second rotating shaft (24) is connected to the first rotating shaft (23) through a first clutch (8), the second rotating shaft (24) passes through the second planet carrier (14), the rotating shaft (25) is connected to the second sun gear (12) through a second clutch (11), the second planetary gear (13) is arranged on the second planet carrier (14), and the second sun gear (12) is meshed with the second inner gear ring (15) through the second planetary gear (13).

2. The integrated dual-drive coaxial gear system according to claim 1, characterized in that: The integrated dual-drive coaxial gear system further comprises a first coupling (2), a first brake (7), a second brake (10), a second coupling (16) and a mounting frame (18); the mounting frame (18) is connected to the first drive (1), the first planetary gear (5) and the second drive (9); the first drive (1) is connected to the first sun gear (3) via the first coupling (2); the first rotating shaft (23) is connected to the first clutch (8) via the first brake (7); the rotating shaft (25) of the second drive (9) is connected to the second clutch (11) via the second brake (10); the second rotating shaft (24) is connected to the load (17) via the second coupling (16); and the second inner gear ring (15) is fixedly connected to the mounting frame (18).

3. The integrated dual-drive coaxial gear system according to claim 2, characterized in that: The first drive (1) and the second drive (9) are detachably connected to the mounting frame (18) by bolts; the first planetary gear transmission (I) also includes a first planetary carrier (4), the first planetary carrier (4) is fixedly connected to the mounting frame (18), and the first planetary carrier (4) is rotatably connected to the first planetary gear (5), and the wheels in the present invention are all gears.

4. A transmission method of the integrated dual-drive coaxial gear transmission system according to claim 1, characterized in that: The steps of the integrated dual-drive coaxial gear transmission method include a first single drive method, a second single drive method and a combined drive method; A first independent driving method: the first clutch (8) is engaged and the second clutch (11) is disengaged, so that the first drive (1) independently drives the load (17); Second independent driving method: by engaging the second clutch (11) and disengaging the first clutch (8), the second drive (9) independently drives the load (17); Combined driving method: the clutch (3) and the clutch (11) are engaged at the same time, so as to achieve simultaneous driving of the motor (1) and the motor (9) and coaxial power combined driving of the load (17).

5. An application of the integrated dual-drive coaxial gear system according to any one of claims 1 to 3, characterized in that: The integrated dual-drive coaxial gear system is applied to the power system of a ship.

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