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Fan gear box disassembly method and device

A technology for dismantling devices and gearboxes, applied in the directions of transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems such as the tonnage of the jack cannot be too large, the effect of the disassembly method is not ideal, and the main shaft bearing is damaged.

Active Publication Date: 2020-08-04
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the axial static load of the main shaft bearing, the tonnage of the jack should not be too large, otherwise the main shaft bearing will also be greatly damaged, so the effect of this disassembly method is still unsatisfactory

Method used

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  • Fan gear box disassembly method and device
  • Fan gear box disassembly method and device
  • Fan gear box disassembly method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 As shown, the blower gearbox removal device includes a first seal, an oil inlet pipeline and a second seal.

[0032] The first sealing assembly is arranged at the end of the shaft hole 42 of the fan main shaft away from the gearbox 51, and specifically includes a connecting flange 11 and a first piston 12. One end of the connecting flange 11 is connected and fixed on the main shaft 41, and the other end is connected to the first piston 12. In connection, at least one first sealing groove is opened on the outer periphery of the first piston 12, and a first sealing ring 13 is arranged in each first sealing groove. The first piston 12 is disposed in the main shaft hole 42 for sealing the main shaft hole 42 .

[0033] The second seal is arranged in the shaft hole 52 of the gearbox, specifically including the second piston 31, the outer circumference of the second piston 31 is provided with at least one second sealing groove, and each second sealing groove is ...

Embodiment 2

[0043] Different from the first embodiment, in the second embodiment, the design of the oil inlet pipeline is different.

[0044] Since the dismounting device is not the original installation structure, it is only installed and used when the gearbox fails. In addition, the space on the outer end side of the gearbox shaft hole 52 is small, which is not convenient for installation operations. One side of the outer end of the hole 42 realizes the installation of the dismounting device, wherein the second seal is accurately and quickly loaded into the gearbox shaft hole 52, and the sealing of the gearbox shaft hole 52 is the difficulty and focus of installation.

[0045] In order to realize the accurate and fast installation of the second sealing member, on the basis of the first embodiment, the oil inlet pipeline of the second embodiment also includes an oil pipe, and the first end of the oil pipe is connected and fixed on the first piston 12 of the first sealing member. And comm...

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PUM

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Abstract

The invention discloses a dismantling method for a fan gear box. Original shaft holes of a main shaft and the fan gear box are skillfully utilized, a sealed cavity is constructed between the shaft holes of the gear box and the shaft holes of the main shaft of a fan, hydraulic oil is injected into the sealed cavity to reach a predetermined oil pressure, and the gear box is pushed out of the main shaft by the high-pressure oil, and therefore the gear box is successfully and effectively removed, the removal efficiency is greatly improved, and the time is saved. Radial bias force hardly exists inthe whole disassembly process, and therefore the damage to the surface of the main shaft and the difficulty of disassembly are greatly reduced, and the smooth disassembly of the gear box is effectively guaranteed. Cutting knives and jacks are no longer needed, and therefore the damage to the gear box, the main shaft and a main shaft bearing is effectively avoided. The invention further provides adevice adopting the dismantling method for the fan gear box.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method and device for disassembling a wind turbine gearbox. Background technique [0002] Wind energy is an important renewable and clean energy. Wind energy has broad development prospects in development value and commercial promotion. The technical solutions of using wind energy to generate electricity have been continuously researched and developed in various countries. As the core equipment of wind power generation, the quality of wind power generator largely determines the economic benefits of wind power generation technology. [0003] The gearbox is the key transmission part of the wind turbine, and its main function is to transmit the kinetic energy of the wind wheel to the generator and obtain a corresponding speed. At present, the commonly used installation method of the gearbox is to set the planetary frame on the outer periphery of the end of the fan s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/029F16H57/023
CPCF16H57/023F16H57/029
Inventor 张天琦蒋琼胡江平
Owner SANY ELECTRIC CO LTD