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Dismantling method and device for fan gear box

A technology for dismantling devices and gearboxes, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc. It can solve problems such as damage to main shaft bearings, unsatisfactory disassembly methods, and the tonnage of jacks cannot be too large.

Active Publication Date: 2018-12-07
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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  • Dismantling method and device for fan gear box
  • Dismantling method and device for fan gear box
  • Dismantling method and device for fan gear box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the fan gearbox disassembly device includes a first seal, an oil inlet pipeline and a second seal.

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

[0033] The second sealing element is arranged in the gearbox shaft hole 52, and specifically includes a second piston 31. At least one second sealing groove is provided on the outer periphery of the second piston 31, and a second sealing ring 32 is...

Embodiment 2

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

[0044] Since the disassembly device is not the original installation structure, it is installed and used when the gearbox fails. In addition, the space on the outer end of the gearbox shaft hole 52 is small, which is not convenient for installation and operation. Therefore, priority should be given to only the main shaft One side of the outer end of the hole 42 realizes the installation of the disassembly device, in which the second sealing element is accurately and quickly fitted into the gearbox shaft hole 52 to realize the sealing of the gearbox shaft hole 52 is the difficulty and key point of installation.

[0045] In order to realize the accurate and rapid installation of the second seal, on the basis of the first embodiment, the oil inlet pipeline of the second embodiment further includes an oil pipe, and the first end of the oil pipe is connec...

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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 clean energy. Wind energy has broad development prospects in its development value and commercial promotion. Technical solutions for 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 turbines largely determines the economic benefits of wind power technology. [0003] The gearbox is the key transmission component of the wind turbine, and its main function is to transfer the kinetic energy of the wind wheel to the generator and make it get the corresponding speed. At present, the commonly used installation method of the gearbox is to set the planet carrier on the outer circumference of the end of the main shaft of the ...

Claims

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Application Information

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