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A speed-adjustable hydraulic transmission for a full-hydraulic wind turbine

A hydraulic transmission and wind turbine technology, applied in mechanical equipment, fluid transmission devices, belts/chains/gears, etc., can solve the problems of large energy loss along the journey, transmission can not accurately control the amount of oil input and output power, etc., to achieve shortening The oil circuit and transmission ratio are large, and the effect of cost saving

Inactive Publication Date: 2018-07-13
INNER MONGOLIA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention of the digital variable pump makes the full hydraulic wind turbine have a more specific way of realization, but there is also a very large energy loss along the way
In the new adjustable-speed hydraulic transmission proposed at present, the transmission cannot accurately control the oil intake and output power according to the demand

Method used

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  • A speed-adjustable hydraulic transmission for a full-hydraulic wind turbine
  • A speed-adjustable hydraulic transmission for a full-hydraulic wind turbine
  • A speed-adjustable hydraulic transmission for a full-hydraulic wind turbine

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand that the technical solution of the present invention can be implemented, the present invention will be further described below in conjunction with the accompanying drawings and specific examples, but the given examples are not intended to limit the present invention.

[0029] The invention provides an adjustable-speed hydraulic transmission for a full hydraulic wind turbine, specifically as Figure 1 to Figure 3 As shown, it includes a housing 3, an energy transfer unit, an oil replenishment unit and a controller 24. In this embodiment, the controller 24 is a PLC.

[0030] The energy transfer unit is used to transmit the rotational speed, including the oil distribution shaft 4, the split chamber 8 connected to the end face of the oil distribution shaft 4 in sequence, the guide wheel 9, the turbine 10 and the turbine shaft 11, the oil distribution shaft 4, the guide wheel 9, the turbine 10 and the turbine s...

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Abstract

The invention provides a speed-adjustable hydrodynamic transmission for a full-hydraulic wind generating set.The speed-adjustable hydrodynamic transmission comprises a housing, an energy transmitting unit, an oil supplementing unit and a controller, wherein the energy transmitting unit is used for transmitting rotation speed, the oil supplementing unit is used for supplementing hydraulic oil for the energy transmitting unit, and the controller is used for controlling the oil supplementing amount of the oil supplementing unit.The hydrodynamic transmission adopts a hydraulic drive mode, a structure of a radial piston pump is improved, a variable volume adjusting mode is changed, the transmission combines with a part of the structure of a hydraulic coupler, stages of a drive system is few, the drive ratio is high, direct contact of drive parts in a hydraulic drive system is greatly decreased, and the energy transfer efficiency is higher.A gear box is completely replaced, the cost is saved, and the reliability is improved.The hydraulic oil supplementing device portion is integrated and simplified, so that an oil way is shortened, energy loss is reduced, the overall size and weight of the transmission are decreased, and the speed-adjustable hydrodynamic transmission is a brand new speed-adjustable hydrodynamic transmission.

Description

technical field [0001] The invention belongs to the field of hydraulic transmission, and in particular relates to an adjustable-speed hydraulic transmission for a full hydraulic wind power unit. Background technique [0002] With the large-scale wind turbines and the development of offshore wind power, changes in working conditions and operating conditions have caused wind turbine components to withstand more severe speed and torque fluctuations, and the failure rate has increased. Gearbox transmission and direct drive are commonly used transmission methods for wind turbines, especially gearbox transmission. According to statistics, the gearbox in the transmission part is a part with frequent failures, and its maintenance cost accounts for more than 60% of the total maintenance cost of the wind turbine. The transmission ratio of the gearbox is single, and the load fluctuation caused by the wind speed fluctuation is more severe. [0003] The concept of fully hydraulic wind ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H41/04F16H41/24
CPCF16H41/04F16H41/24
Inventor 岑海堂李东邓宇星杨红艳付昆
Owner INNER MONGOLIA UNIV OF TECH
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