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Connection mechanism of power transmission system

A technology for connecting to, turbines, applied in the direction of engines, engine components, wind turbines, etc., which can solve problems such as difficult packaging, incorrect tensioning process, time-consuming connection or disconnection of gearboxes, etc.

Inactive Publication Date: 2014-07-09
ROMAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the process of connecting or disconnecting the gearbox time-consuming and creates a high risk of incorrect tensioning procedures resulting in suboptimal connections
Finally, the large diameter required for bolted flanges can create packaging difficulties
[0010] Connection mechanisms using an interference fit face similar difficulties in assembly, requiring careful alignment and the use of additional equipment

Method used

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  • Connection mechanism of power transmission system
  • Connection mechanism of power transmission system
  • Connection mechanism of power transmission system

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] figure 1 is a schematic diagram of one embodiment of a wind turbine. While an offshore wind turbine is shown, it should be noted that the description below may be applicable to other types of wind turbines. Wind turbine 102 includes rotor blades 104 mounted to hub 106 supported on nacelle 108 on tower 112 .

[0037] The wind forces rotor blades 104 and hub 106 around main axis 11 (not shown; see figure 2 ) turn. This rotational energy is transferred to the figure 2 A power transmission system (or "powertrain") of the type shown is housed within nacelle 108 .

[0038] figure 2 shown for increasing figure 1 One embodiment of the power transmission system for the rotational speed of the rotor of a wind turbine of the type shown. The power transmission system typically includes a main shaft 2 configured to be driven by a hub 106 (see figure 1 ) is driven around the main axis 11 and also includes a gearbox 25 with a gearbox input member 7 . In the embodiment show...

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PUM

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Abstract

The invention provides a connection mechanism of a power transmission system. The end faces of a turbine main shaft and a planet carrier are connected through a spline. The power transmission system increases the rotation speed of a wind power turbine rotor. The power transmission system has a main shaft 2 configured to be driven by the rotor about a main axis 11, a gearbox 25 having a gearbox input element 7, and a coupling element 208 connecting the gearbox input element to the main shaft, where the coupling element comprises a first mating surface associated with the main shaft and a second mating surface associated with the gearbox input element such that one of the mating surfaces comprises axially-extending protrusions, and the other of mating surface comprises axially-extending indentations. In use, these mating surfaces interlock to transmit torque between the main shaft and the gearbox input member.

Description

technical field [0001] The present invention relates to power transmission systems for wind or water turbines. More specifically, the present invention relates to the connection mechanism between the turbine main shaft and the gearbox input member. Background technique [0002] A wind turbine drivetrain typically includes an aerodynamic rotor supported on a main shaft and in turn connected to a step-up gearbox, typically comprising a plurality of planetary and / or parallel gear stages. The output of this gearbox is then connected via another shaft to a generator which produces an electrical output. [0003] The gearbox is the most complex part of the turbine's mechanical transmission system, so the potential for component failure over the lifetime of the turbine is significant. While some repair operations can be performed in situ, it is often advantageous to replace the entire gearbox with another unit. The original gearbox can then be refurbished at the operator's conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/02F03D11/02
CPCF03B11/00F16D1/033F16D3/185F05B2260/403F03D15/00F03D15/10Y02E10/20Y02E10/72F16D1/02
Inventor D·希尔德D·斯科特G·约翰斯通
Owner ROMAX TECH