Step-by-step speed-increasing gearbox for offshore renewable energy comprehensive platform

Abstract

The utility model discloses a step-by-step speed-increasing gear box for an offshore renewable energy comprehensive platform. The step-by-step speed-increasing gear box comprises a box body, an input shaft, an output shaft, a transmission shaft, a transmission gear and an energy storage flywheel, the input shaft, the output shaft and the transmission shafts are installed in the box body in parallel and arranged in a row, transmission gears are installed on the input shaft, the output shaft and the transmission shafts, the adjacent transmission gears are in meshed transmission, and the number of teeth of the transmission gears is gradually reduced from the input shaft to the output shaft. And the energy storage flywheel is arranged at the end part of the output shaft and is used for storing energy by utilizing inertia. The lubricating device is simple in structure and easy to manufacture, the starting torque of the motor is reduced on the premise that the output shaft continuously outputs power, an appropriate lubricating mode can be selected according to the rotating speed, and the lubricating effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, and in particular to a step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform. Background Technology

[0002] The offshore renewable energy integrated platform is a comprehensive platform that utilizes wave energy to generate electricity. Its wave power generation system collects wave energy using floats and transmission rods, and then drives a generator through a speed-increasing gearbox. Commercially available speed-increasing gearboxes have the following problems in actual use: 1. Wave energy has a certain periodicity; the speed-increasing gearbox only has the functions of speed increase and transmission, but does not have the ability to convert periodic power into continuous power; 2. Commercially available speed-increasing gearboxes have a limited number of transmission shafts between the input and output shafts (mostly two), resulting in uneven speed increase, high starting torque, and difficulty in starting the motor; 3. The internal space of commercially available speed-increasing gearboxes is a single cavity, and both high-speed and low-speed gears use the same lubrication method, affecting the lubrication effect.

[0003] Therefore, how to create a new type of incrementally increasing gearbox for a comprehensive offshore renewable energy platform is one of the important research and development topics at present. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform, which ensures continuous power output, reduces the starting torque of the motor, and improves the lubrication effect of transmission gears at different speeds, thereby overcoming the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform, including a housing, an input shaft, an output shaft, a transmission shaft, transmission gears, and an energy storage flywheel;

[0006] The input shaft, output shaft, and several transmission shafts are installed parallel to each other in a row inside the housing. Transmission gears are installed on the input shaft, output shaft, and several transmission shafts. Adjacent transmission gears mesh and drive each other. From the input shaft to the output shaft, the number of teeth on each transmission gear gradually decreases, thereby achieving a step-by-step increase in rotational speed from the input shaft to the output shaft. The energy storage flywheel is installed at the end of the output shaft and is used to store energy using inertia.

[0007] As an improvement of this utility model, the box body is provided with a partition, which is stepped in the horizontal cross section, and the partition divides the internal space of the box body into independent high-speed zone and low-speed zone.

[0008] Furthermore, one of the several drive shafts is a conversion shaft. The conversion shaft passes through the partition and a bearing is installed between the partition and the partition. Two transmission gears are installed on the conversion shaft, located in the high-speed zone and the low-speed zone respectively, and they mesh with the transmission gears on the adjacent drive shafts respectively.

[0009] Furthermore, the input shaft, transmission shaft, and output shaft are all connected to the side wall of the housing via bearings, and an end cover is installed on the outside of the housing.

[0010] Furthermore, the energy storage flywheel is located outside the housing.

[0011] With this design, the present invention has at least the following advantages:

[0012] 1. The energy storage flywheel installed at the output shaft end can store energy by inertia and release the energy during the gaps in the swell, thereby ensuring continuous power output from the output shaft;

[0013] 2. Increasing the number of drive shafts can make the overall speed increase smoother, reduce the starting torque of the motor, and ensure that the motor starts smoothly;

[0014] 3. The internal space of the speed-increasing gearbox is divided into independent high-speed and low-speed zones by a partition, and different lubrication methods can be used in the two chambers to improve the lubrication effect;

[0015] 4. It has a simple structure, is easy to manufacture, and has low cost. Attached Figure Description

[0016] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Housing; 11. High-speed zone; 12. Low-speed zone; 13. Baffle; 2. Input shaft; 3. Drive shaft; 31. Conversion shaft; 4. Output shaft; 5. Drive gear; 6. Energy storage flywheel; 7. Bearing; 8. End cover. Detailed Implementation

[0020] Please see Figure 1 and Figure 2 This utility model provides a step-by-step speed-increasing gearbox for a marine renewable energy integrated platform, including a housing 1, an input shaft 2, an output shaft 4, a transmission shaft 3, a transmission gear 5, and an energy storage flywheel 6.

[0021] The input shaft 2, output shaft 4, and several drive shafts 3 are installed parallel to each other inside the housing 1 and arranged in a row. In this embodiment, there are 7 drive shafts 3. The input shaft 2, output shaft 3, and output shaft 4 are all rotatably connected to the side wall of the housing 1 through bearings 7. An end cover 8 is installed on the outside of the housing 1. The function of the end cover 8 is to provide support and installation space for the bearings 7.

[0022] One end of the input shaft 1 extends outside the housing 1 for connection with the front-end transmission component. Both ends of the output shaft 4 extend outside the housing 1, with an energy storage flywheel 6 installed at one end and the other end connected to the motor.

[0023] The input shaft 2, output shaft 4 and several transmission shafts 3 are all equipped with transmission gears 5. Adjacent transmission gears 5 mesh with each other, and the number of teeth of each transmission gear 5 gradually decreases from the input shaft 2 to the output shaft 4, thereby realizing the gradual increase of the rotational speed from the input shaft 2 to the output shaft 4.

[0024] In this embodiment, a partition 13 is also provided inside the housing 1. The partition 13 is stepped in horizontal cross-section, located in the middle of the housing 1, and divides the internal space of the housing 1 into an independent high-speed zone 11 and a low-speed zone 12. The left side of the partition 13 is the high-speed zone, and the right side is the low-speed zone.

[0025] One of the drive shafts 3 is defined as the conversion shaft 31, which passes exactly through the partition 13 and has a bearing 7 installed between it and the partition 13. Two transmission gears 5 are installed on the conversion shaft 31, located in the high-speed zone 11 and the low-speed zone 12 respectively, and mesh with the transmission gears 5 on the adjacent drive shaft 3 respectively.

[0026] It should be noted that this invention adds an energy storage flywheel 6 to the end of the output shaft 4, which makes the power output more continuous, but also increases the starting torque of the motor. Therefore, it is necessary to appropriately increase the number of transmission shafts 3 to make the speed increase smoother and reduce the starting torque of the motor. At the same time, increasing the number of transmission shafts 3 is also more conducive to the division of the high-speed zone 11 and the low-speed zone 12. Users can choose the appropriate lubrication method according to the actual working conditions. For example, jet lubrication can be used in the high-speed zone 11, while oil bath lubrication can be used in the low-speed zone 12. Different lubrication methods are suitable for different speed ranges to achieve the best lubrication effect.

[0027] This utility model has a simple structure and is easy to manufacture. While ensuring continuous output power from the output shaft, it reduces the starting torque of the motor and allows for selection of appropriate lubrication methods based on the rotational speed, thereby improving the lubrication effect.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A progressively increasing gearbox for an integrated offshore renewable energy platform, characterized in that, It includes a housing, input shaft, output shaft, drive shaft, drive gears, and energy storage flywheel; The input shaft, output shaft, and several transmission shafts are installed parallel to each other in a row inside the housing. Transmission gears are installed on the input shaft, output shaft, and several transmission shafts. Adjacent transmission gears mesh and drive each other. From the input shaft to the output shaft, the number of teeth on each transmission gear gradually decreases, thereby achieving a step-by-step increase in rotational speed from the input shaft to the output shaft. The energy storage flywheel is installed at the end of the output shaft and is used to store energy using inertia.

2. The step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform according to claim 1, characterized in that, The enclosure is equipped with a partition, which is stepped in the horizontal cross section. The partition divides the internal space of the enclosure into independent high-speed and low-speed zones.

3. The step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform according to claim 2, characterized in that, One of the several drive shafts is a conversion shaft. The conversion shaft passes through the partition and a bearing is installed between the partition and the partition. Two transmission gears are installed on the conversion shaft, located in the high-speed zone and the low-speed zone respectively, and they mesh with the transmission gears on the adjacent drive shafts respectively.

4. The step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform according to claim 1, characterized in that, The input shaft, drive shaft, and output shaft are all connected to the side wall of the housing via bearings, and end caps are installed on the outside of the housing.

5. The step-by-step speed-increasing gearbox for an integrated offshore renewable energy platform according to claim 1, characterized in that, The energy storage flywheel is located outside the housing.

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