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Lubricating and cooling system for wind power gearbox and wind power generating set

A wind power gearbox, lubrication and cooling technology, applied in the direction of gear lubrication/cooling, belt/chain/gear, mechanical equipment, etc., can solve the problems that cannot meet the temperature requirements of the gearbox working condition, the single speed control of the cooling fan, etc., to meet the requirements Gearbox lubrication and cooling requirements, high integration and low cost effects

Active Publication Date: 2019-02-15
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2) The cooling fan of the existing gearbox lubrication and cooling system is controlled by a single speed, which cannot meet the temperature requirements of various working conditions of the gearbox

Method used

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  • Lubricating and cooling system for wind power gearbox and wind power generating set
  • Lubricating and cooling system for wind power gearbox and wind power generating set
  • Lubricating and cooling system for wind power gearbox and wind power generating set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the wind power gearbox lubrication cooling system of this embodiment includes a hydraulic motor 1, a radiator 2 and a gear pump unit 3, the output shaft of the hydraulic motor 1 is connected to the cooling fan of the radiator 2, the hydraulic motor 1, the radiator 2 The oil inlet of the gear pump unit 3 communicates with the output end of the gear pump unit 3, the oil outlet of the radiator 2 communicates with the gear box 5, the input end of the gear pump unit 3 communicates with the gear box 5, and the oil outlet of the hydraulic motor 1 communicates with the radiator The oil inlet of device 2 is connected. In this embodiment, the lubricating medium in the gearbox 5 is used to directly drive the hydraulic motor 1, which can meet the lubrication and cooling requirements of the gearbox 5 of the high-power wind power generating set, without adding an oil source device, and has the advantages of low cost, small installation space, and high integ...

Embodiment 2

[0039] This embodiment is basically the same as the first embodiment, and the main difference is that the implementation of the control unit 4 is different. The control unit 4 includes a first reversing valve 41 and a throttle valve 42. In this embodiment, the first reversing valve 41 is a three-position four-way valve, and the throttle valve 42 is a damping hole.

[0040] Specific as figure 2As shown, the oil inlet P of the three-position four-way valve 41 is connected to the output end of the gear pump unit 3, and the oil suction port T and the first working oil port A of the three-position four-way valve 41 are respectively connected to the oil inlet port of the radiator 2 The second working oil port B of the three-position four-way valve 41 communicates with the oil inlet port of the radiator 2 through the damping hole 42 . It should be noted that, in addition to the three-position four-way valve, the first reversing valve 41 can also use a three-position six-way valve, ...

Embodiment 3

[0046] This embodiment is basically the same as Embodiment 1, and its main difference is:

[0047] (1) The number of gear pump units 3 is different;

[0048] (2) The control unit 4 and the hydraulic motor 1 have different oil intake methods.

[0049] Such as image 3 As shown, in this embodiment, two gear pump units 3 are included, represented by gear pump unit 3#1 (right side) and gear pump unit 3#2 (left side) respectively; The output end of gear pump unit 3#1 on the side is connected, and the oil inlets of hydraulic motor 1 and control unit 4 are respectively connected with the output end of gear pump unit 3#2 on the left; and the output of control unit 4 and hydraulic motor 1 The end is connected with the oil inlet of the radiator 2.

[0050] The working principle of the wind power gearbox lubrication and cooling system in this embodiment is as follows:

[0051] For the gear pump unit 3#1 on the right, the motor 31 starts to work, drives the gear pump 30 to pump gear o...

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Abstract

The invention discloses a wind power gear box lubrication cooling system and a wind turbine generator set. The wind power gear box lubrication cooling system comprises a hydraulic motor, a radiator and at least one gear pump unit, wherein an output shaft of the hydraulic motor is connected with a cooling fan of the radiator; the hydraulic motor and an oil inlet of the radiator are communicated with the output end of the at least one gear pump unit respectively, an oil outlet of the radiator is communicated with the gear box, the input end of the gear pump unit is communicated with a gear box, and an oil outlet of the hydraulic motor is connected with the oil inlet or the oil outlet of the radiator; the wind turbine generator set comprises the gear box and the wind power gear box lubrication cooling system. The lubrication cooling requirement of the gear box of the high-power wind turbine generator set can be met, an oil source device is not required to be added, and the system has the advantages of low cost, small mounting space and high integration degree.

Description

technical field [0001] The invention relates to a wind power generating set, in particular to a lubricating and cooling system for a wind power gearbox and a wind power generating set. Background technique [0002] The gearbox is one of the most important core components of the wind turbine. During the operation of the wind power generating set, the lubricating oil temperature of the gearbox has a direct impact on the work and service life of the entire gearbox and the unit. If the lubricating oil temperature is too high, the oil is easy to deteriorate, and the lubrication and cooling effects are reduced. Serious Gearbox damage will result. Therefore, at present, the gearboxes of wind power generators are equipped with lubricating and cooling systems, and the oil temperature of the gearboxes is reduced by means of heat exchange through radiators to ensure the normal operation of the gearboxes. [0003] The existing gearbox lubrication and cooling system generally includes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/04
CPCF16H57/0402F16H57/0413F16H57/0434F16H57/0435F16H57/0441
Inventor 唐省名孙丹胡江平
Owner SANY ELECTRIC CO LTD
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