Gearbox for oil-electricity hybrid power ship
By designing a single-stage reduced oil-electric hybrid marine gearbox, using a structure where the motor and the oil vehicle work simultaneously, the problem of the problem that the pure electric drive high-power input and the motor rotation direction do not match the working direction of the diesel engine side clutch in the prior art is solved, and the effect of simple structure, easy installation and stable work during hybridization is achieved.
Patent Information
- Application Number
- CN202422082816.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing hybrid marine gearboxes cannot meet the high-power input of pure electric drives, and there is a problem that the motor rotation direction does not match the working direction of the diesel engine side clutch, resulting in large size, complex structure, and unstable working during hybridization.
A single-stage reduction oil-electric hybrid marine gear box is designed, adopting a structure where the motor and the oil truck work simultaneously. The motor input shaft passes through the center of the driving gear, and a clutch structure with different return methods is selected to ensure independent work between the motor and the fuel side.
It realizes the use of motor and fuel components simultaneously, the gear box reduces the speed reduction ratio, simple structure and easy installation, solving the problem of mutual interference between motor and fuel-grade gear design, and improving the working stability during hybridization.
Smart Images
Figure CN222823694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a marine gear box, in particular to a marine gear box with hybrid power input which can be driven by fuel and electricity. Background Art
[0002] In the prior art, hybrid marine gearboxes generally use internal combustion engines as the primary power source, and electric motors as auxiliary power devices, and generally have input power far less than diesel engines. Conventionally, the electric motor is selected to form a hybrid power input when the diesel engine works first, or they work independently under specific working conditions.
[0003] Ships are different from vehicles. Not only is it inconvenient to charge with high power, but also, because ships run for a long time in waterways and have high driving power, pure electric drive cannot solve the problem of high power and long endurance. The use of hybrid drive with electric drive as the main and fuel as the auxiliary can achieve energy saving and emission reduction of ships. In special cases, high power output can also solve the user's anxiety about lack of power and endurance. The ship can run purely on electricity when the load is light or short-distance sailing. When the motor is overloaded when sailing against the current or against the waves, the diesel engine can be selected to increase the power output. When the ship is berthed or only needs to sail slowly, it can only be driven by the motor purely on electricity to avoid the main engine idling for a long time and incomplete combustion, resulting in carbon deposition on the main engine and excessive exhaust pollution of the air. When the power is insufficient during the operation of the ship, the speed can be reduced to run the diesel engine alone. The use of hybrid drive with electric drive as the main can not only make the diesel engine work at an economic speed as much as possible or reduce the operation of the diesel engine, solve the problems of carbon deposition on the main engine, fuel waste and pollution emissions, but also sail as much as possible on pure electricity, which can greatly reduce the energy consumption and transportation cost of the ship.
[0004] However, the existing hybrid marine gearbox cannot meet the high power input of pure electric drive, and there is a problem that the motor rotation direction matches the diesel engine side clutch working direction when the motor works first and then merges into the diesel engine. In addition, the overall structure of the gearbox is relatively large, and the arrangement of the motor-level gears and the arrangement of the fuel-level gears will restrict and affect each other, and there are also many restrictions in gear design. Summary of the invention
[0005] The utility model provides an oil-electric hybrid marine gearbox with a single-stage reduction, a simple structure, and convenient installation. The motor and the oil vehicle have no master-slave relationship and can work simultaneously. The utility model solves the technical problems in the prior art that the gear designs of the motor stage and the oil stage interfere with each other, the gearbox is large in size, and the operation is unstable during hybrid operation.
[0006] The above technical problems of the utility model are solved by the following technical solutions: a hybrid oil-electric marine gearbox, including a gearbox body, a motor input component, an oil truck forward input component, an oil truck reverse input component and an output component are arranged in the gearbox body, and the motor input component, the oil truck forward input component and the oil truck reverse input component are all connected with the output component; with the axis of the output component as the center, the axis of the oil truck forward input component and the axis of the output component are arranged vertically and eccentrically, and the axis of the motor input component and the axis of the output shaft component are arranged angularly and eccentrically; the motor input component includes a motor input shaft, and the torque transmission section of the motor input shaft passes through the axis of the driving gear, and the motor input component, the oil truck forward input component and the oil truck reverse input component are all installed with corresponding motor clutch structures, oil truck forward clutch structures and oil truck reverse clutch structures. There is no master-slave relationship between the motor side and the fuel side. When they work normally, both sides (fuel input and motor input) need to work simultaneously. The gearbox has a small reduction ratio, and the structure adopts a single-stage reduction and a shared output gear. The structure is simple and easy to install. However, due to structural reasons, the motor drive input shaft needs to pass through the axis of the driving gear, which affects the strength of the input shaft. Therefore, different return methods are used for the motor-level clutch and the fuel-side clutch. With the axis of the output component as the center, the motor input component is located above the output component, while the fuel vehicle input component is located directly above the output component. The axis of the output component, the axis of the motor input component and the axis of the fuel vehicle input component form an acute triangle, which is convenient for the installation of the clutch.
[0007] Preferably, the box body comprises an upper box body and a lower box body arranged up and down, and a front box cover is installed on the input side of the upper box body. Arranging the box body into three parts facilitates the installation of various input and output components, and also facilitates the installation of the clutch.
[0008] Preferably, the motor clutch structure includes a motor clutch piston, a plurality of spring holes are provided on the motor clutch piston, and a motor clutch return spring is installed in the spring hole. Since the torque transmission section of the motor input shaft needs to pass through the axis of the driving gear, in order to ensure the strength of the motor input shaft, the diameter of the motor input shaft is as large as possible, so in the return mode of the clutch, the return spring is selected to be installed in the spring hole provided on the piston.
[0009] Preferably, the oil truck clutch structure includes an oil truck clutch piston, an oil truck clutch return spring sleeved on the oil truck clutch input shaft, and one end of the oil truck clutch spring abuts against the oil truck clutch piston. The torque transmission section of the oil truck clutch input shaft does not need to pass through the driving gear axis on the oil truck clutch input shaft, because the diameter of the oil truck clutch input shaft can be arbitrarily designed, so a large oil truck clutch return spring is selected to be directly sleeved on the oil truck clutch input shaft, which has a simple structure and is convenient for installation and operation.
[0010] Preferably, the oil truck reverse clutch structure includes an oil truck reverse clutch piston, an oil truck reverse clutch return spring sleeved on the oil truck reverse input shaft, and one end of the oil truck reverse clutch spring abuts against the oil truck reverse clutch piston. The oil truck reverse input shaft torque transmission section does not need to pass through the driving gear axis on the oil truck reverse input shaft, so a large return spring can also be directly sleeved on the oil truck reverse input shaft, which has a simple structure and is easy to install.
[0011] Preferably, the oil truck forward input component includes an oil truck forward input shaft driven by the oil truck forward power source, an oil truck forward transmission gear is fixed on the oil truck forward input shaft, and the oil truck forward transmission gear is meshed with the oil truck reverse transmission gear; the rear end input shaft of the oil truck forward clutch structure is hollowly sleeved with an oil truck forward driving gear, and the rear end transmission shaft of the oil truck reverse clutch structure is hollowly sleeved with an oil truck reverse driving gear, the oil truck forward driving gear and the oil truck reverse driving gear are both meshed with the output gear on the output shaft component, the oil truck forward clutch structure is located between the oil truck forward driving gear and the oil truck forward transmission gear, and the oil truck reverse clutch structure is located between the oil truck reverse transmission gear and the oil truck reverse driving gear.
[0012] Preferably, the motor input component includes a motor input shaft driven by a motor power source, a motor driving gear is sleeved on the motor input shaft, the motor driving gear is meshed with an output gear on the output shaft component, one end of the motor input shaft is connected to the motor power source, and the other end of the motor input shaft is installed with a motor clutch structure.
[0013] Therefore, the utility model of an oil-electric hybrid marine gearbox has the following advantages: the motor component and the fuel component are used at the same time and connected to the output shaft at the same time, the gearbox reduction ratio is small, and the single-machine reduction gear components are few; due to structural reasons, the motor input shaft needs to pass through the axis of the driving gear, which affects the strength of the motor input shaft, so the motor-level clutch and the fuel-side clutch use different return methods to reduce the impact on the strength of the motor input shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view of an oil-electric hybrid marine gearbox according to Example 1 of the utility model.
[0015] Figure 2 yes Figure 1 Schematic diagram of the internal shafts and meshing gears.
[0016] Figure 3 yes Figure 1 AA section view.
[0017] Figure 4 yes Figure 1 BB cross-sectional view.
[0018] Figure 5 yes Figure 1 CC cross-sectional view. DETAILED DESCRIPTION
[0019] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0020] Embodiment 1:
[0021] like Figure 1 and 2 As shown, a hybrid oil-electric marine gearbox includes a box body, which includes an upper box body 5 and a lower box body 6 arranged up and down. After the upper box body 5 and the lower box body 6 are assembled, a front box cover is installed on the front side. The purpose of setting the front cover is for convenience. A motor input component 1, an oil truck forward output input component 2 and an oil truck reverse input component 3 are arranged in the box body. The motor input component 1, the oil truck forward output input component 2 and the oil truck reverse input component 3 are all connected with the output component 4. The axis of the motor input component, the axis of the oil truck forward input component and the axis of the output component are arranged in an eccentric angle, that is, the axis of the oil truck output input component 2 is directly above the axis of the output component 4, and the axis of the motor input component 1 is located on the right side above the axis of the output component 4.
[0022] like Figure 3 As shown, the oil truck input component includes an oil truck input shaft 10 driven by the oil truck power source 7, and an oil truck transmission gear 8 is fixed on the oil truck input shaft 10. At the same time, an oil truck driving gear 9 is sleeved on the oil truck input shaft 10. The oil truck transmission gear 8 is meshed with the oil truck reverse transmission gear 12, and the oil truck driving gear 9 is meshed with the output gear 21 on the output shaft component, and the output gear 21 is installed on the output shaft 20. The oil truck clutch structure 11 is located between the oil truck transmission gear 8 and the oil truck driving gear 9.
[0023] The oil truck clutch structure includes an oil truck clutch piston 22 . The oil truck clutch return spring 23 is sleeved on the oil truck clutch input shaft 10 . One end of the oil truck clutch spring 23 abuts against the oil truck clutch piston 22 .
[0024] like Figure 4As shown, the oil truck reverse input component includes an oil truck reverse input shaft 14, on which the oil truck reverse transmission gear 12 is installed, and on which the oil truck reverse input shaft 14 there is an empty sleeve of an oil truck reverse driving gear 13, and an oil truck reverse clutch structure 15 is located between the oil truck reverse transmission gear 12 and the oil truck reverse driving gear 13, the oil truck reverse transmission gear 12 is meshed with the oil truck forward transmission gear 8, and the oil truck reverse driving gear 13 is meshed with the output gear 21 on the output shaft component, and the output gear 21 is installed on the output shaft 20.
[0025] The oil truck reverse clutch structure includes an oil truck reverse clutch piston 24 . The oil truck reverse clutch return spring 25 is sleeved on the oil truck reverse input shaft 14 . One end of the oil truck reverse clutch spring 25 abuts against the oil truck reverse clutch piston 24 .
[0026] like Figure 5 As shown, the motor input component includes a motor input shaft 18 driven by a motor power source 16, a motor driving gear 17 is sleeved on the motor input shaft 18, the motor driving gear 17 is meshed with an output gear 21 on the output shaft component, and the output gear 21 is installed on the output shaft 20. One end of the motor input shaft 18 is connected to the motor power source 16, and the other end of the motor input shaft 18 is installed with a motor clutch structure 19. Since the torsion section of the motor input shaft needs to pass through the motor driving gear 17, in order to ensure the strength of the motor input shaft 18, when designing the motor clutch structure, a number of spring holes 26 are evenly opened on the motor clutch piston 28, and a motor clutch return spring 27 is installed in the spring hole 26.
[0027] The specific embodiments described herein are merely examples of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An oil-electric hybrid marine gearbox, comprising a gearbox body, characterized in that: A motor input component, an oil truck forward input component, an oil truck reverse input component and an output component are arranged in the gear box body, and the motor input component, the oil truck forward input component and the oil truck reverse input component are all connected with the output component; with the axis of the output component as the center, the axis of the oil truck forward input component and the axis of the output component are arranged vertically and eccentrically, and the axis of the motor input component and the axis of the output shaft component are arranged angularly and eccentrically; the motor input component includes a motor input shaft, and the torque transmission section of the motor input shaft passes through the axis of the driving gear, and the motor input component, the oil truck forward input component and the oil truck reverse input component are all installed with corresponding motor clutch structures, oil truck forward clutch structures and oil truck reverse clutch structures.
2. The hybrid marine gearbox according to claim 1, characterized in that: The box body comprises an upper box body and a lower box body which are arranged up and down, and a front box cover is installed on the oil truck input side of the upper box body.
3. The hybrid marine gearbox according to claim 1, characterized in that: The motor clutch structure comprises a motor clutch piston, a plurality of spring holes are provided on the motor clutch piston, and a motor clutch return spring is installed in the spring hole.
4. The hybrid marine gearbox according to claim 1, characterized in that: The oil truck clutch structure includes an oil truck clutch piston, an oil truck clutch return spring sleeved on the oil truck clutch input shaft, and one end of the oil truck clutch spring abuts against the oil truck clutch piston.
5. The hybrid marine gearbox according to claim 1, characterized in that: The oil truck reverse clutch structure comprises an oil truck reverse clutch piston, an oil truck reverse clutch return spring sleeved on the oil truck reverse input shaft, and one end of the oil truck reverse clutch spring abuts against the oil truck reverse clutch piston.
6. The oil-electric hybrid marine gearbox according to any one of claims 1 to 5, characterized in that: The oil truck forward input component includes an oil truck forward input shaft driven by the oil truck forward power source, an oil truck forward transmission gear is fixed on the oil truck forward input shaft, and the oil truck forward transmission gear is meshed with the oil truck reverse transmission gear; the rear end input shaft of the oil truck forward clutch structure is idly sleeved with an oil truck forward driving gear, and the rear end input shaft of the oil truck reverse clutch structure is idly sleeved with an oil truck reverse driving gear, the oil truck forward driving gear and the oil truck reverse driving gear are both meshed with the output gear on the output shaft component, the oil truck forward clutch structure is located between the oil truck forward driving gear and the oil truck forward transmission gear, and the oil truck reverse clutch structure is located between the oil truck reverse transmission gear and the oil truck reverse driving gear.
7. The oil-electric hybrid marine gearbox according to any one of claims 1 to 5, characterized in that: The motor input component includes a motor input shaft driven by a motor power source, a motor driving gear is sleeved on the motor input shaft, the motor driving gear is meshed with an output gear on the output shaft component, one end of the motor input shaft is connected to the motor power source, and the other end of the motor input shaft is installed with a motor clutch structure.