Auxiliary electric motor special for wind power, bearing grease adding method of electric motor and wind power unit

A technology for auxiliary motors and electric motors, applied in the direction of electric components, engines, bearing components, etc., can solve the problems of small motor suppliers being overwhelmed, achieve the effects of reducing maintenance burden, improving reliability, and ensuring reliable operation

Inactive Publication Date: 2016-07-13
BEIJING GENERATOR MECHANICAL & ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some motor suppliers can only guarantee the motor within the 5-year warranty period. If the motor has a quality problem, it will be replaced and installed free o

Method used

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  • Auxiliary electric motor special for wind power, bearing grease adding method of electric motor and wind power unit
  • Auxiliary electric motor special for wind power, bearing grease adding method of electric motor and wind power unit

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Embodiment Construction

[0030] Such as figure 1 As shown, the existing conventional wind power auxiliary motor includes a rotating shaft 1 , a wave gasket 2 , a sealed bearing 3 , and an end cover 4 . The sealed bearing 3 is set on the outer circle of the rotating shaft 1, the inner diameter of the sealed bearing 3 is an interference fit with the outer diameter of the rotating shaft 1, and the end cover 4 is set on the outer circle of the sealed bearing 3, between the sealed bearing 3 and the end cover 4 Between them, there is a wave washer 2 for adjusting the axial clearance of the sealed bearing 3 .

[0031] With reference to the bearing structure of conventional small asynchronous motors, this kind of bearing structure uses disposable sealed bearings. There are no grease filling and grease discharge channels on the end cover, and there is no bearing inner cover and bearing outer cover for axial positioning in the axial direction of the bearing, resulting in In the harsh operating environment of t...

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PUM

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Abstract

The invention discloses an auxiliary electric motor special for wind power.The auxiliary electric motor comprises a rotating shaft, a bearing, an external bearing cover, an end cover and an internal bearing cover; the bearing is installed on the rotating shaft in a sleeving mode, the internal bearing cover and the external bearing cover are arranged on the inner side and the outer side of the bearing respectively, and the end cover is installed on the external circle of the bearing in a sleeving mode; a grease storage space containing a grease adding channel and a grease discharging channel is formed by the external bearing cover, the end cover and the internal bearing cover in an enclosing mode.The invention further discloses a bearing grease adding method of the auxiliary electric motor special for the wind power.When lubricating grease is initially loaded and the lubricating grease is added again in a wind field, grease adding is conducted when the electric motor rotates.The invention further discloses a wind power unit containing the auxiliary electric motor special for the wind power.By means of the auxiliary electric motor special for the wind power, the bearing grease adding method of the electric motor and the wind power unit, the use requirements of the wind-power auxiliary electric motor on the long guarantee period and high reliability are guaranteed, the special use requirement in the wind field is met, and the auxiliary electric motor special for the wind power is suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a special auxiliary motor for wind power, its bearing greasing method and a wind power unit. Background technique [0002] The installed capacity of clean energy wind turbines is increasing year by year, and the technology of components supporting wind turbines is also becoming more mature and reliable. However, the wind power auxiliary motors matched with each subsystem of the wind turbine include the pitch motor matched with the pitch system of the wind turbine, the yaw motor matched with the yaw system of the wind turbine, and the cooling motor matched with the main generator cooler of the wind turbine. Cooling motors, etc., technology and reliability need to be improved. [0003] Because the wind power auxiliary motors matched with the wind turbine subsystem have relatively small power, generally below 15kW, and the center height of the motor is below 180mm. Most motor su...

Claims

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Application Information

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IPC IPC(8): F16C35/04F16N1/00F16N31/02H02K3/04H02K5/124H02K5/173
CPCH02K5/173F16C35/04F16C2380/26F16N1/00F16N31/02F16N2031/025F16N2210/18H02K3/04H02K5/124H02K2203/06
Inventor 秦明
Owner BEIJING GENERATOR MECHANICAL & ELECTRICAL TECH
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