WO2023280029A1 - 一种连接风力发电机组的叶轮轴与主轴的传动组件 - Google Patents

一种连接风力发电机组的叶轮轴与主轴的传动组件 Download PDF

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Publication number
WO2023280029A1
WO2023280029A1 PCT/CN2022/102205 CN2022102205W WO2023280029A1 WO 2023280029 A1 WO2023280029 A1 WO 2023280029A1 CN 2022102205 W CN2022102205 W CN 2022102205W WO 2023280029 A1 WO2023280029 A1 WO 2023280029A1
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Prior art keywords
transmission assembly
main shaft
gear
shaft
impeller shaft
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PCT/CN2022/102205
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English (en)
French (fr)
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林瑞昕
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林瑞昕
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Publication of WO2023280029A1 publication Critical patent/WO2023280029A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to the technical field of wind power generators, in particular to a transmission assembly connecting the impeller shaft and the main shaft of the wind power generators.
  • the main components include impeller components, transmission components, generator components, and towers.
  • the impeller assembly, the transmission assembly and the generator assembly are all very compactly connected on the same axis line, so the impeller shaft end and the main shaft end are coaxially connected.
  • the impeller assembly, transmission assembly, and generator assembly are placed on top of the tower.
  • the object of the present invention is to provide a transmission assembly connecting the impeller shaft and the main shaft of the wind power generating set, so as to solve the problems raised in the above-mentioned background technology.
  • a transmission assembly connecting the impeller shaft and the main shaft of a wind power generating set is characterized in that one end is connected to the impeller shaft and the other end is connected to the main shaft, and the two ends are not on the same horizontal plane.
  • the transmission assembly includes a gear transmission and a chain transmission, the gear transmission includes gears (2, 3, 4, 5), and the chain transmission includes sprockets (6, 8) and a chain (7).
  • the gear (2) is coaxially connected with the impeller shaft (1), and then is orthogonal to the axis of the gear (3), for changing the axial direction of the impeller shaft transmission.
  • the axis line of the gear (3) coincides with the axis line of the yaw bearing, which is used to fulfill the yaw function.
  • the gear (4) is coaxially connected with the gear (3), and then is perpendicular to the axis of the gear (5), so as to change the axial direction of transmission.
  • the sprocket (6) is coaxially connected with the gear (5), and then connected with the sprocket (8) through the chain (7), so as to increase the center distance of the transmission axis.
  • the sprocket (8) is coaxially connected with the main shaft (9), so as to transmit the mechanical energy when the impeller assembly rotates to the transmission assembly and the generator assembly.
  • the transmission assembly connecting the impeller shaft and the main shaft of the wind power generating set provided by the present invention is used to transmit the mechanical energy when the impeller assembly rotates to the speed change assembly and the generator assembly, so that both the speed change assembly and the generator assembly can be placed on the side of the tower
  • the bottom which greatly reduces the load-bearing capacity and weight requirements of the tower, and also greatly reduces the difficulty and cost of installation and maintenance of wind turbines.
  • Fig. 1 is a schematic diagram of a transmission assembly connecting an impeller shaft and a main shaft of a wind power generating set;
  • Fig. 2 is a schematic diagram of main components of a wind power generating set using the present invention.
  • FIG. 1 is a schematic diagram of a transmission assembly connecting the impeller shaft and the main shaft of a wind power generating set.
  • One end of the transmission assembly is connected to the impeller shaft and the other end is connected to the main shaft, and the two ends are not on the same level.
  • the transmission assembly includes a gear transmission and a chain transmission, the gear transmission includes gears (2, 3, 4, 5), and the chain transmission includes sprockets (6, 8) and a chain (7).
  • the gears (2, 3, 4, 5) are all bevel gears with the same diameter and the same number of teeth.
  • the axis line of the gear (3) should coincide with the axis line of the yaw bearing, so as to ensure that the impeller assembly can use the yaw bearing to make a horizontal 360-degree change of direction, thereby maximizing the use of wind energy from different directions.
  • the chain wheel (6) has the same diameter and the same number of teeth as the chain wheel (8), and its axis lines are parallel to each other and are on the same vertical plane, thereby ensuring efficient and stable transmission under the longer situation of the chain (7).
  • the gear (3) is coaxially connected with the gear (4), and fixed on the inner wall of the tower through the bearing; the gear (5) is coaxially connected with the sprocket (6), and fixed on the inner wall of the tower through the bearing; the sprocket (8) It is fixed on the inner wall of the tower by bearings.
  • Fig. 2 is a kind of schematic diagram of the main components of the wind power generating set after using the present invention, through this embodiment, through described two groups of bevel gear transmissions and one group of chain transmissions, the transmission efficiency of the whole process The loss is not large, and the speed of the main shaft and the speed of the impeller shaft can be maintained at the same speed, so that the transmission components and generator components can be moved away from the top of the tower and placed at the bottom of the tower, so as to greatly reduce the load-bearing capacity and weight of the tower Requirements to greatly reduce the difficulty and cost of wind turbine installation and maintenance.

Abstract

一种连接风力发电机组的叶轮轴（1）与主轴（9）的传动组件（11）。该传动组件（11）的一端与叶轮轴（1）连接，另一端与主轴（9）连接，两端不处于同一个水平面上。该传动组件（11）包括齿轮传动与链传动，使变速组件（12）与发电机组件（13）都放置在风力发电机组塔架（14）的底部，从而大幅降低了对塔架（14）的承重能力和重量的要求，也大幅降低了风力发电机组的安装和维护的难度及成本。

Description

一种连接风力发电机组的叶轮轴与主轴的传动组件 技术领域
本发明涉及风力发电机组技术领域，特别涉及一种连接风力发电机组的叶轮轴与主轴的传动组件。
背景技术
在目前的主流风力发电机组中，主要组件包括叶轮组件、变速组件、发电机组件、塔架。其中叶轮组件、变速组件、发电机组件都是非常紧凑地连接在同一轴心线上，故叶轮轴端与主轴端为同轴连接。叶轮组件、变速组件、发电机组件都是被放置在塔架的顶部。随着发电机组单机容量的不断加大，变速组件和发电机组件的重量也在不断加大，塔架的高度也在不断升高。这样，一方面对塔架的承重能力和重量有更高的要求，另一方面也加大了安装和维护的难度及成本。
为此，需要设计一种新型的连接叶轮轴与主轴的传动组件，以将变速组件和发电机组件移离塔架顶部，放置在塔架底部，从而实现大幅降低对塔架的承重能力和重量的要求，达到大幅降低风力发电机组的安装和维护的难度及成本。
发明内容
本发明的目的在于提供一种连接风力发电机组的叶轮轴与主轴的传动组件，以解决上述背景技术中提出的问题。
为实现上述目的，本发明采用的技术方案是：
一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，一端与叶轮轴连接，另一端与主轴连接，两端不处于同一个水平面上。本传动组件包括齿轮传动和链传动，所述齿轮传动包括齿轮(2、3、4、5)，所述链传动包括链轮(6、8)和链条(7)。
所述齿轮(2)与所述叶轮轴(1)同轴连接，然后与所述齿轮(3)的轴心线正交，用于改变叶轮轴传动的轴向。
所述齿轮(3)的轴心线与偏航轴承的轴心线相重合，用于满足偏航功能的发挥。
所述齿轮(4)与所述齿轮(3)同轴连接，然后与所述齿轮(5)的轴心线正交，用于改变传动的轴向。
所述链轮(6)与所述齿轮(5)同轴连接，然后通过所述链条(7)与所述链轮(8)连接，用于增大传动轴向的中心距。
所述链轮(8)与所述主轴(9)同轴连接，达到将叶轮组件转动时的机械能传动到变速组件和发电机组件上。
本发明提供的连接风力发电机组的叶轮轴与主轴的传动组件，用于将叶轮组件转动时的机械能传动到变速组件和发电机组件上，可使变速组件和发电机组件都放置在塔架的底部，从而大幅降低了对塔架的承重能力和重量的要求，也大幅降低了风力发电机组的安装和维护的难度及成本。
附图说明
图1为一种连接风力发电机组的叶轮轴与主轴的传动组件的示意图；
图2为一种风力发电机组使用了本发明后的主要组件示意图。
附图标记：
1：叶轮轴；       2、3、4、5：齿轮；    6、8：链轮；    7：链条；
9：主轴；         10：叶轮组件；        11：传动组件；
12：变速组件；    13：发电机组件；      14：塔架。
具体实施方式
下面结合附图和具体实施方式对本发明的技术方案作进一步详细描述。以下实施例用于说明本发明，但不能用来限定本发明。
请参阅图1，一种连接风力发电机组的叶轮轴与主轴的传动组件的示意图，该传动组件一端与叶轮轴连接，另一端与主轴连接，两端不处于同一个水平面上。该传动组件包括齿轮传动和链传动，所述齿轮传动包括齿轮(2、3、4、5)，所述链传动包括链轮(6、8)和链条(7)。
齿轮(2、3、4、5)都是直径相同、齿数相同的锥齿轮。
齿轮(3)的轴心线应与偏航轴承的轴心线相重合，确保叶轮组件能够利用偏航轴承作水平360度变向，从而最大限度地利用来自不同方向的风能。
链轮(6)与链轮(8)直径相同、齿数相同，其轴心线互相平行，并处于同一垂直面上，从而保证在链条(7)较长的情况下传动的高效平稳。
齿轮(3)与齿轮(4)同轴连接，通过轴承在塔架内壁进行固定；齿轮(5)与链轮(6)同轴连接，通过轴承在塔架内壁进行固定；链轮(8)通过轴承在塔架内壁进行固定。
请参阅图1和图2，图2为一种风力发电机组使用了本发明后的主要组件示意图，通过该实施例，经过所述两组锥齿轮传动和一组链传动，整个过程的传动效率损失不大，可以维持主轴的转速与叶轮轴的转速相差不大，从而使变速组件和发电机组件可以移离塔架顶部，放置在塔架底部，实现大幅降低对塔架的承重能力和重量的要求，达到大幅降低风力发电机组的安装和维护的难度及成本。
上面对本发明的较佳实施方式作了详细说明，但是本发明并不限于上述实施方式，在本领域的普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (10)

  1. 一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，一端与叶轮轴连接，另一端与主轴连接，两端不处于同一个水平面上。
  2. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，包括齿轮传动和链传动，所述齿轮传动包括齿轮(2、3、4、5)，所述链传动包括链轮(6、8)和链条(7)。
  3. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述齿轮(2)与所述叶轮轴(1)同轴连接。
  4. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述齿轮(3)与所述齿轮(2)的轴心线正交。
  5. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述齿轮(3)的轴心线与偏航轴承的轴心线相重合。
  6. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述齿轮(4)与所述齿轮(3)同轴连接。
  7. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述齿轮(5)与所述齿轮(4)的轴心线正交。
  8. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述链轮(6)与所述齿轮(5)同轴连接。
  9. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述链轮(8)通过所述链条(7)与所述链轮(6)连接。
  10. 如权利要求1所述的一种连接风力发电机组的叶轮轴与主轴的传动组件，其特征在于，所述链轮(8)与所述主轴(9)同轴连接。
PCT/CN2022/102205 2021-07-06 2022-06-29 一种连接风力发电机组的叶轮轴与主轴的传动组件 WO2023280029A1 (zh)

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CN113266535A (zh) * 2021-07-06 2021-08-17 林瑞昕 一种连接风力发电机组的叶轮轴与主轴的传动组件

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KR20080094972A (ko) * 2007-04-23 2008-10-28 주식회사 엔이씨 고감도풍력발전시스템
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