WO2023045705A1 - 齿轮箱的控制装置 - Google Patents

齿轮箱的控制装置 Download PDF

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Publication number
WO2023045705A1
WO2023045705A1 PCT/CN2022/115427 CN2022115427W WO2023045705A1 WO 2023045705 A1 WO2023045705 A1 WO 2023045705A1 CN 2022115427 W CN2022115427 W CN 2022115427W WO 2023045705 A1 WO2023045705 A1 WO 2023045705A1
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WIPO (PCT)
Prior art keywords
mechanical pump
stage displacement
speed
pump
control device
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Ceased
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PCT/CN2022/115427
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English (en)
French (fr)
Inventor
王福亮
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ZF Wind Power Antwerpen NV
Zf Wind Power Tianjin Co Ltd
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ZF Wind Power Antwerpen NV
Zf Wind Power Tianjin Co Ltd
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Application filed by ZF Wind Power Antwerpen NV, Zf Wind Power Tianjin Co Ltd filed Critical ZF Wind Power Antwerpen NV
Priority to EP22871757.5A priority Critical patent/EP4407213A4/en
Priority to US18/693,222 priority patent/US12180944B2/en
Publication of WO2023045705A1 publication Critical patent/WO2023045705A1/zh
Anticipated expiration legal-status Critical
Priority to US18/957,954 priority patent/US12595783B2/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F03D80/705—Lubrication circuits; Lubrication delivery means
    • F03D80/707—Gearing lubrication, e.g. gear boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
    • F16H57/0436—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
    • F16H57/0436—Pumps
    • F16H57/0439—Pumps using multiple pumps with different power sources or a single pump with different power sources, e.g. one and the same pump may selectively be driven by either the engine or an electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefor
    • F16H61/0031—Supply of control fluid; Pumps therefor using auxiliary pumps, e.g. pump driven by a different power source than the engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to a control device, in particular to a control device for an oil pump of a wind power gearbox.
  • a wind turbine gearbox is used to transmit torque between the main shaft connected to the wind rotor and the engine, and it usually uses a planetary gear train to achieve speed increase.
  • the electric pump does not turn on or works at a very low speed, and the flow rate it provides is very low, so at this time the mechanical pump will be mainly responsible for the circulation of the lubricating oil in the gearbox and Achieve lubrication.
  • the displacement of the mechanical pump is designed according to the rated load and rated speed of the gearbox, and the flow rate of the mechanical pump is completely determined by the input speed of the gearbox.
  • the rotational speed of the mechanical pump is also low, which cannot provide sufficient oil volume. Insufficient oil quantity will lead to insufficient lubrication of parts such as gears and bearings in the gearbox, thereby affecting the operation and life of the gearbox.
  • the present invention provides a control device for a gearbox, which can adapt to rated working conditions and special working conditions Under different lubrication requirements.
  • the present invention also provides a control device for a gear box, the gear box includes a mechanical pump and an electric pump, and the feature is that the mechanical pump has a first-stage displacement and a second-stage displacement, and the first-stage displacement is less than Second-stage displacement, the control device includes:
  • the sensor module is used to detect the oil pressure of the lubricating oil of the gearbox.
  • Lower oil pressure usually means that the speed of the wind wheel is low and the speed of the electric pump is zero or close to zero. At this time, the lubrication system is almost completely dependent on the mechanical pump, and the input speed of the wind wheel is relatively low, so the speed of the mechanical pump is also relatively low.
  • the mechanical pump control module is used to control the mechanical pump to operate at the first stage displacement when the oil pressure is higher than the oil pressure threshold, and to control the mechanical pump to operate at the second stage displacement when the oil pressure is lower than the oil pressure threshold .
  • the present invention also provides a control device for a gear box, the gear box includes a mechanical pump and an electric pump, and the feature is that the mechanical pump has a first-stage displacement and a second-stage displacement, and the first-stage displacement is less than Second-stage displacement, the control device includes:
  • the sensor module is used to detect the input speed of the wind wheel and the speed of the electric pump
  • the mechanical pump control module is used to control the mechanical pump to operate at the first stage displacement when the input speed of the wind rotor is greater than or equal to the speed threshold, and is used to control the operation of the mechanical pump at the first stage displacement when the input speed of the wind rotor is lower than the speed threshold and the speed of the electric pump is lower than the speed threshold Control the mechanical pump to run at the second stage displacement.
  • the present invention also provides a control device for a gear box, the gear box includes a mechanical pump and an electric pump, and the feature is that the mechanical pump has a first-stage displacement and a second-stage displacement, and the first-stage displacement is less than Second-stage displacement, the control device includes:
  • the sensor module is used to detect the input speed and oil temperature of the wind wheel
  • the mechanical pump control module is used to control the mechanical pump to operate at the first stage displacement when the input speed is greater than or equal to the speed threshold and the oil temperature is higher than the oil temperature threshold, and is used to control the mechanical pump to run at the first stage displacement when the input speed is lower than the speed threshold and the oil temperature is lower than the oil temperature threshold.
  • the mechanical pump is controlled to run with the second-stage displacement.
  • said speed threshold is at least 30% of rated speed.
  • said speed threshold is at least 50% of rated speed.
  • the mechanical pump is a two-stage variable displacement pump.
  • the mechanical pump is a continuously variable variable pump.
  • the technical effect obtained by the present invention is: by adopting a mechanical pump with two-stage displacement, different displacements are applied under different working conditions, taking into account the lubrication requirements of rated working conditions and special working conditions, and avoiding low-speed and/or Insufficient lubrication at low temperature conditions, and excessive oil quantity under rated operating conditions.
  • Fig. 1 shows a structural block diagram of a control device according to an embodiment of the present invention
  • Fig. 2 shows a schematic diagram of the control logic of the control device according to an embodiment of the present invention
  • Fig. 3 shows a schematic diagram of the control logic of the control device according to another embodiment of the present invention.
  • the gear box includes a mechanical pump 1 and an electric pump 2, wherein the mechanical pump 1 has a first-stage displacement and a second-stage displacement. stage displacement, the first stage displacement is less than the second stage displacement, the control device includes: a sensor module 3, used to detect the oil pressure of the lubricating oil in the gearbox; a mechanical pump control module 4, used to When the oil pressure is higher than the oil pressure threshold, the mechanical pump 1 is controlled to operate at the first-stage displacement, and when the oil pressure is lower than the oil pressure threshold, the mechanical pump 1 is controlled to operate at the second-stage displacement.
  • the mechanical pump adopts a stepless variable pump, so that the pressure of the lubricating oil can be stabilized near a certain value.
  • Step 101 The sensor module detects the oil pressure of the lubricating oil in the gearbox.
  • the oil pressure can reflect the current operating state of the gearbox. For example, when the input speed of the wind wheel is low and the electric pump is not working, the lubrication The oil pressure of the oil will be relatively low. At this time, a mechanical pump is required to supply oil with a relatively large displacement.
  • Step 102 The mechanical pump control module judges whether the oil pressure is higher than the oil pressure threshold. If yes, it is considered that the gearbox is in a normal working state, and the supply of lubricating oil is relatively sufficient, so go to step 103; if not, it is considered that the lubrication of the gearbox is Oil supply is insufficient, go to step 104.
  • Step 103 The mechanical pump control module controls the mechanical pump to operate with a smaller displacement (for example, the first stage displacement), so as to avoid high oil pressure caused by a large oil volume.
  • Step 104 The mechanical pump control module controls the mechanical pump to operate with a larger displacement (for example, the second stage displacement), so as to avoid insufficient lubrication.
  • the control device can also judge the working condition of the gearbox by monitoring the input speed of the wind wheel and the rotational speed of the electric pump.
  • the sensor module 3 is used to detect the input speed of the wind wheel and the rotational speed of the electric pump;
  • the mechanical pump control module 4 is used to control the mechanical pump 1 to operate at the first stage when the input speed of the wind wheel is greater than or equal to the speed threshold.
  • the displacement operation is used to control the mechanical pump 1 to operate at the second stage displacement when the input speed of the wind rotor is lower than the speed threshold and the speed of the electric pump 2 is lower than the speed threshold.
  • the mechanical pump is a two-stage variable displacement pump.
  • Step 201 Detect the input speed of the wind wheel and the rotation speed of the electric pump. If the rotation speed of the electric pump is very low or even does not work, then the lubrication will be realized entirely by the mechanical pump. The work of the mechanical pump depends on the operation of the wind wheel, so the input speed of the wind wheel is an important indicator to measure the working condition of the mechanical pump.
  • Step 202 The mechanical pump control module judges whether the input speed is greater than or equal to the speed threshold, if yes, go to step 203; if not, go to step 204.
  • Step 203 The mechanical pump control module controls the mechanical pump to operate with a small displacement (for example, the first stage displacement), so as to avoid high oil pressure caused by a large oil volume.
  • a small displacement for example, the first stage displacement
  • Step 204 The mechanical pump control module determines whether the speed of the electric pump is lower than the speed threshold. If yes, it means that the electric pump cannot provide sufficient oil, and proceeds to step 205; if not, it means that the electric pump can basically guarantee the oil supply of the gearbox, and then enters Step 203.
  • Step 205 The mechanical pump control module controls the mechanical pump to operate with a larger displacement (for example, the second-stage displacement), so as to avoid insufficient lubrication.
  • the gearbox still includes a mechanical pump and an electric pump, the mechanical pump has a first-stage displacement and a second-stage displacement, and the first-stage displacement is smaller than the second-stage displacement.
  • the control device includes: a sensor module for detecting the input speed and oil temperature of the wind rotor; Control the mechanical pump to operate at the first stage displacement when the temperature is higher than the oil temperature threshold, and control the mechanical pump to operate at the second stage displacement when the input speed is less than the speed threshold and the oil temperature is lower than the oil temperature threshold.
  • the detection of the input speed of the wind wheel and the oil temperature is introduced.
  • the detection of oil temperature mainly lies in the judgment of the state of the electric pump.
  • the electric pump basically does not work or runs at a very low speed.
  • the input speed of the wind rotor has a certain relationship with the input parameters of the mechanical pump. For example, if the input speed of the wind rotor is slow, it means that the mechanical pump needs to work at a large displacement to provide sufficient lubricating oil.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)

Abstract

本发明提供了一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：传感器模组，用于检测齿轮箱的润滑油的油压，机械泵控制模组，用于在油压高于油压阈值时控制机械泵以第一级排量运行，以及用于在油压低于油压阈值时控制机械泵以第二级排量运行。通过采用具有两级排量的机械泵，在不同的工况下应用不同的排量，兼顾了额定工况和特殊工况的润滑需求，避免了低速和/或低温条件下润滑的不足，以及额定工况下过多的油量。

Description

齿轮箱的控制装置 技术领域
本发明涉及一种控制装置，特别涉及一种风电齿轮箱的油泵的控制装置。
背景技术
风电齿轮箱用于在连接风轮的主轴和发动机之间传递扭矩，其通常采用行星轮系来实现增速。在齿轮箱的运行过程中，行星轮系的各个部件，特别是齿轮啮合部和轴承都需要润滑以保证齿轮箱的正常工作。目前的风电齿轮箱系统中，存在机械泵和电动泵的双油泵设计，其中机械泵由风轮的转动提供动力，而电动泵则完全由外部电力供电。
然而，在润滑油油温较低的情况下，电动泵不开启或者以很低的转速工作，其提供的流量很低，因而此时将主要由机械泵来负责齿轮箱中润滑油的循环以实现润滑。通常机械泵的排量是根据齿轮箱的额定负载和额定速度来设计的，并且机械泵的流量完全由齿轮箱的输入速度来决定。然而当齿轮箱的输入速度较低时，机械泵的转速也较低，从而不能提供充足的油量。油量的不足又会导致齿轮箱中齿轮和轴承等零部件的不充分润滑从而影响齿轮箱的运行和寿命。
为了克服这一问题，如果按照低输入转速的情况来设计机械泵的排量，这又会导致额定工况下流量过大，而过大的流量又会引起较高的油压，增加了漏油的风险，并且增加齿轮箱的能源损耗。
发明内容
本发明为了解决现有技术中采用固定排量的机械泵难以实现额定工况和特殊工况下不同润滑需求的缺陷，提供一种齿轮箱的控制装置，其可以适应额定工况和特殊工况下不同的润滑需求。
本发明的目的是通过以下技术方案来实现的：
本发明还提供一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特点在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
传感器模组，用于检测齿轮箱的润滑油的油压，较低的油压通常意味着风轮的转速较低且电动泵转速为零或接近于零，此时润滑系统几乎完全依赖于机械泵，且风轮的输入速度又比较低，那么机械泵的转速也比较低。
机械泵控制模组，用于在油压高于油压阈值时控制机械泵以第一级排量运行，以及用于在油压低于油压阈值时控制机械泵以第二级排量运行。
本发明还提供一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特点在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
传感器模组，用于检测风轮的输入速度和电动泵的转速；
机械泵控制模组，用于在风轮的输入速度大于等于速度阈值时控制机械泵以第一级排量运行，以及用于在风轮的输入速度小于速度阈值且电动泵的转速小于转速阈值时控制机械泵以第二级排量运行。
本发明还提供一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特点在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
传感器模组，用于检测风轮的输入速度和油温；
机械泵控制模组，用于在输入速度大于等于速度阈值和油温高于油温阈值时控制机械泵以第一级排量运行，以及用于在输入速度小于速度阈值和油温低于油温阈值时控制机械泵以第二级排量运行。
优选地，所述速度阈值为额定速度的至少30％。
优选地，所述速度阈值为额定速度的至少50％。
优选地，所述机械泵为两级变排量泵。
优选地，所述机械泵为无级变量泵。
本发明获得的技术效果是：通过采用具有两级排量的机械泵，在不同的工况下应用不同的排量，兼顾了额定工况和特殊工况的润滑需求，避免了低速和/或低温条件下润滑的不足，以及额定工况下过多的油量。
附图概述
图1示出了本发明一实施例的控制装置的结构框图；
图2示出了本发明一实施例的控制装置的控制逻辑的示意图；
图3示出了本发明另一实施例的控制装置的控制逻辑的示意图。
本发明的较佳实施方式
下面参考图1-3，根据本发明的具体实施方式并结合附图来进一步说明。
参考图1示出了本发明一实施例的齿轮箱的控制装置的结构框图，所述齿轮箱包括机械泵1和电动泵2，其中，所述机械泵1具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：传感器模组3，用于检测齿轮箱的润滑油的油压；机械泵控制模组4，用于在油压高于油压阈值时控制机械泵1以第一级排量运行，以及用于在油压低于油压阈值时控制机械泵1以第二级排量运行。在该实施例中，机械泵采用无级变量泵，可以实现润滑油的压力被稳定在某一值附近。
参考图2，在该实施例中，该控制装置的具体控制逻辑如下：
步骤101：传感器模组检测齿轮箱的润滑油的油压，一般来说，油压能够反映齿轮箱当前的运行状态，例如当风轮的输入转速较低而电动泵又不工作的时候，润滑油的油压会比较低，此时需要机械泵以比较大的排量来供油。
步骤102：机械泵控制模组判断油压是否高于油压阈值，若是，则认为齿轮箱处于正常工作状态，润滑油的提供比较充足，那么进入步骤103；若否，则认为齿轮箱的润滑油提供不够充分，进入步骤104。
步骤103：机械泵控制模组控制机械泵以较小的排量(例如第一级排量运行)，从而避免油量大造成的油压较高。
步骤104：机械泵控制模组控制机械泵以较大的排量(例如第二级排量运行)，从而避免润滑的不充分。
参考图1和图3，除了仅监控油压之外，在另一实施例中，控制装置还可以通过监控风轮的输入速度和电动泵的转速来判断齿轮箱的工况。具体来说，传感器模组3用于检测风轮的输入速度和电动泵的转速；机械泵控制模组4，用于在风轮的输入速度大于等于速度阈值时控制机械泵1以第一级排量运行，以及用于在风轮的输入速度小于速度阈值且电动泵2的转速小于转速阈值时控制机械泵1以第二级排量运行。在本实施例中，所述机械泵为两级变排量泵。
这一实施例中的控制装置的控制逻辑如下：
步骤201：检测风轮的输入速度和电动泵的转速，如果电动泵的转速很低甚至不工作，那么润滑将完全依靠机械泵来实现。而机械泵的工作则依靠风轮的运转，所以风轮的输入速度是衡量机械泵所处工况的一个重要指标。
步骤202：机械泵控制模组判断输入速度是否大于等于速度阈值，若是，进入步骤203；若否，进入步骤204。
步骤203：机械泵控制模组控制机械泵以较小的排量(例如第一级排量运行)，从而避免油量大造成的油压较高。
步骤204：机械泵控制模组判断电动泵转速是否小于转速阈值，若是，说明电动泵不能提供充足的油量，进入步骤205；若否，说明电动泵基本能保证齿轮箱的供油，则进入步骤203。
步骤205：机械泵控制模组控制机械泵以较大的排量(例如第二级排量运行)，从而避免润滑的不充分。
在又一实施例中，齿轮箱依然包括机械泵和电动泵，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量。但是所述控制装置包括：传感器模组，用于检测风轮的输入速度和油温；机械泵控制模组，用于在输入速度大于等于速度阈值(速度阈值例如额定速度的50％)和油温高于油温阈值时控制机械泵以第一级排量运行，以及用于在输入速度小于速度阈值和油温低于油温阈值时控制机械泵以第二级排量运行。为了更为精确地监控齿轮箱所处的工况，引入了对风轮的输入速度和油温的检测。对油温的检测主要在于对电动泵状态的判断，通常较低油温的情况下，电动泵基本不工作或者以极低的速度运转。而风轮的输入速度则和机械泵的输入参数具有一定关联，例如风轮的输入速度较慢的话，则意味着机械泵需要以较大排量工作来提供足够的润滑油。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这些仅是举例说明，本发明的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本发明的保护范围。

Claims (7)

  1. 一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特征在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
    传感器模组，用于检测齿轮箱的润滑油的油压，
    机械泵控制模组，用于在油压高于油压阈值时控制机械泵以第一级排量运行，以及用于在油压低于油压阈值时控制机械泵以第二级排量运行。
  2. 一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特征在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
    传感器模组，用于检测风轮的输入速度和电动泵的转速；
    机械泵控制模组，用于在风轮的输入速度大于等于速度阈值时控制机械泵以第一级排量运行，以及用于在风轮的输入速度小于速度阈值且电动泵的转速小于转速阈值时控制机械泵以第二级排量运行。
  3. 一种齿轮箱的控制装置，所述齿轮箱包括机械泵和电动泵，其特征在于，所述机械泵具有第一级排量和第二级排量，第一级排量小于第二级排量，所述控制装置包括：
    传感器模组，用于检测风轮的输入速度和油温；
    机械泵控制模组，用于在输入速度大于等于速度阈值和油温高于油温阈值时控制机械泵以第一级排量运行，输入速度小于速度阈值和油温低于油温阈值时控制机械泵以第二级排量运行。
  4. 如权利要求3所述的控制装置，其特征在于，所述速度阈值为额定速度的至少30％。
  5. 如权利要求4所述的控制装置，其特征在于，所述速度阈值为额定速度的至少50％。
  6. 如权利要求1-5中任意一项所述的控制装置，其特征在于，所述机械泵为两级变排量泵。
  7. 如权利要求1-5中任意一项所述的控制装置，其特征在于，所述机械泵为无级变量泵。
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