CN110332079A - A kind of transmission shaft on wind power plant - Google Patents
A kind of transmission shaft on wind power plant Download PDFInfo
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- CN110332079A CN110332079A CN201910603623.0A CN201910603623A CN110332079A CN 110332079 A CN110332079 A CN 110332079A CN 201910603623 A CN201910603623 A CN 201910603623A CN 110332079 A CN110332079 A CN 110332079A
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- shaft body
- transmission shaft
- wind power
- axle body
- shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 239000002346 layers by function Substances 0.000 claims abstract description 11
- 238000005121 nitriding Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005256 carbonitriding Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PIMDXYQKECXXRT-UHFFFAOYSA-M N.[O-2].[OH-].O.[Al+3] Chemical compound N.[O-2].[OH-].O.[Al+3] PIMDXYQKECXXRT-UHFFFAOYSA-M 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- SJKRCWUQJZIWQB-UHFFFAOYSA-N azane;chromium Chemical compound N.[Cr] SJKRCWUQJZIWQB-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001337 iron nitride Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- F03D15/00—Transmission of mechanical power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/90—Coating; Surface treatment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/60—Shafts
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
本发明提供一种风力发电设备上的传动轴，它包括顺次相邻连接的第一轴体、阶梯部和第二轴体，所述阶梯部的外径尺寸大于第一轴体和第二轴体的外径尺寸，且第一轴体和第二轴体的外径尺寸保持一致；它采用传动轴表面设置功能层的结构从而克服现有技术传动轴容易磨损的缺陷，能提高传动轴的耐磨性，以及抗大气腐蚀性能，从而延长了设备的使用寿命，整体结构科学合理、简单紧凑，安装和使用方便，具有显著的经济效益和社会效益；它广泛适用于风力发电配套使用。
The present invention provides a transmission shaft on a wind power generating equipment, which comprises a first shaft body, a stepped portion and a second shaft body which are sequentially connected adjacently, and the outer diameter of the stepped portion is larger than that of the first shaft body and the second shaft body. The outer diameter of the shaft body, and the outer diameters of the first shaft body and the second shaft body are consistent; it adopts the structure of a functional layer on the surface of the transmission shaft to overcome the defect that the transmission shaft is easy to wear in the prior art, and can improve the performance of the transmission shaft. Excellent wear resistance and atmospheric corrosion resistance, thus prolonging the service life of the equipment. The overall structure is scientific and reasonable, simple and compact, easy to install and use, and has significant economic and social benefits; it is widely used in wind power generation.
Description
技术领域technical field
本发明涉及风力发电设备，尤其涉及一种风力发电设备上的传动轴。The invention relates to wind power generating equipment, in particular to a drive shaft on the wind power generating equipment.
背景技术Background technique
风能作为一种清洁的可再生能源，越来越受到世界各国的重视，并且它取之不尽，用之不竭，对于缺水、缺燃料和交通不便的沿海岛屿、草原牧区、山区或高原地带，因地制宜的利用风力发电是非常合适的；我国风能资源丰富，经过统计，可开发利用的风能储量约10亿千瓦，其中陆地上风能储量约为2.5亿千瓦，风力发电的发展前景非常广阔。As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world, and it is inexhaustible. It is very appropriate to use wind power to generate electricity according to local conditions; my country is rich in wind energy resources. According to statistics, the wind energy reserves that can be developed and utilized are about 1 billion kilowatts, of which the wind energy reserves on land are about 250 million kilowatts. The development prospect of wind power generation is very broad.
风力发电所需要的装置称作为风力发电机组，一般包括风轮、机舱和铁塔三部分，其中铁塔是用于支撑风轮、尾舱和发电机的构架，维护人员也可以通过铁塔进入机舱，风轮是把风的动能转变为机械能的重要部件，当风吹向桨叶时，桨叶上产生气动力驱动风轮转动，机舱是风力发电机的关键设备，它包括齿轮箱和发电机。The device required for wind power generation is called a wind turbine, which generally includes three parts: the wind rotor, the nacelle and the iron tower. The iron tower is the frame used to support the wind rotor, the tail cabin and the generator. The wheel is an important part that converts the kinetic energy of the wind into mechanical energy. When the wind blows to the blade, the aerodynamic force generated on the blade drives the wind wheel to rotate. The nacelle is the key equipment of the wind generator, which includes a gearbox and a generator.
传动轴是将桨叶转动的势能传递至发电机的重要部件，一般传动轴的一端连接呈螺旋卷绕状的叶片，经风力作用叶片推动传动轴运转，可使传动轴另一端连接的发电机组工作，达到将空气动能转换为电能的目的；因此传动轴在转动的同时也承受迎风面的压力，长期使用后，传动轴与轴承之间的磨损加剧，扭矩增大，影响工作效率。The drive shaft is an important part that transmits the potential energy of the blade rotation to the generator. Generally, one end of the drive shaft is connected to a spirally wound blade, and the blade drives the drive shaft to run through the wind force, which can make the generator set connected to the other end of the drive shaft To achieve the purpose of converting air kinetic energy into electrical energy; therefore, the transmission shaft is also subjected to the pressure on the windward side while rotating. After long-term use, the wear between the transmission shaft and the bearing will increase, and the torque will increase, which will affect the work efficiency.
发明内容Contents of the invention
针对上述情况，本发明的目的在于提供一种风力发电设备上的传动轴，它采用传动轴表面设置功能层的结构从而克服现有技术传动轴容易磨损的缺陷，能提高传动轴的耐磨性，以及抗大气腐蚀性能，从而延长了设备的使用寿命，整体结构科学合理、简单紧凑，安装和使用方便，市场前景广阔，便于推广使用。In view of the above situation, the object of the present invention is to provide a transmission shaft on wind power generation equipment, which adopts the structure of a functional layer on the surface of the transmission shaft to overcome the defect that the transmission shaft is easy to wear in the prior art, and can improve the wear resistance of the transmission shaft , and anti-atmospheric corrosion performance, thereby prolonging the service life of the equipment. The overall structure is scientific and reasonable, simple and compact, easy to install and use, has a broad market prospect, and is easy to promote and use.
为了实现上述目的，一种风力发电设备上的传动轴，它包括顺次相邻连接的第一轴体、阶梯部和第二轴体，所述阶梯部的外径尺寸大于第一轴体和第二轴体的外径尺寸，且第一轴体和第二轴体的外径尺寸保持一致。In order to achieve the above object, a transmission shaft on a wind power generating equipment comprises a first shaft body, a stepped portion and a second shaft body which are sequentially connected adjacently, and the outer diameter of the stepped portion is larger than the first shaft body and the second shaft body. The outer diameter of the second shaft body, and the outer diameters of the first shaft body and the second shaft body are consistent.
为了实现结构、效果优化，其进一步的措施是：所述第一轴体和第二轴体的外圆表面设有功能层。In order to optimize the structure and effect, the further measure is: the outer circular surfaces of the first shaft body and the second shaft body are provided with functional layers.
所述功能层为渗氮层或碳氮共渗层。The functional layer is a nitrided layer or a carbonitrided layer.
所述第一轴体的外圆表面上设有环形卡槽。An annular locking groove is provided on the outer circular surface of the first shaft body.
所述第二轴体的外圆表面设有延伸至外端面的键槽。The outer circular surface of the second shaft body is provided with a keyway extending to the outer end surface.
本发明相比现有技术所产生的有益效果：Compared with the beneficial effects produced by the prior art, the present invention:
(Ⅰ)本发明采用顺次相邻连接的第一轴体、阶梯部和第二轴体，整体结构布局简单、紧凑，安装和使用方便；(I) The present invention adopts the first shaft body, the stepped part and the second shaft body connected in sequence, the overall structure layout is simple and compact, and it is easy to install and use;
(Ⅱ)本发明采用第一轴体和第二轴体的外圆表面上设有渗氮或碳氮共渗的功能层，能提高传动轴的表面硬度、耐磨性、抗大气腐蚀性能、以及耐疲劳强度，有利于延长设备的使用寿命，大幅提高生产效率，减少维护费用，降低运行成本；(II) In the present invention, the outer circular surfaces of the first shaft body and the second shaft body are provided with a nitriding or carbonitriding functional layer, which can improve the surface hardness, wear resistance, and atmospheric corrosion resistance of the transmission shaft. And fatigue resistance, which is beneficial to prolong the service life of equipment, greatly improve production efficiency, reduce maintenance costs, and reduce operating costs;
(Ⅲ)本发明采用第一轴体和第二轴体的外圆表面上分别设有环形卡槽和键槽，能提高传动轴与轴承或发电机的连接牢固性，保障运转平稳可靠，操作安全；(Ⅲ) In the present invention, the outer circular surfaces of the first shaft body and the second shaft body are respectively provided with annular card slots and key slots, which can improve the firmness of the connection between the transmission shaft and the bearing or the generator, and ensure stable and reliable operation and safe operation. ;
(Ⅳ)本发明采用传动轴表面设置功能层的结构从而克服现有技术传动轴容易磨损的缺陷，能提高传动轴的耐磨性，以及抗大气腐蚀性能，从而延长了设备的使用寿命，整体结构科学合理、简单紧凑，安装和使用方便，具有显著的经济效益和社会效益。(Ⅳ) The present invention adopts the structure of the functional layer on the surface of the transmission shaft to overcome the defect that the transmission shaft is easy to wear in the prior art, and can improve the wear resistance and atmospheric corrosion resistance of the transmission shaft, thereby prolonging the service life of the equipment. The structure is scientific and reasonable, simple and compact, easy to install and use, and has significant economic and social benefits.
本发明广泛适用于风力发电配套使用。The invention is widely applicable to the supporting use of wind power generation.
下面结合附图和实施例对本发明作进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
附图说明Description of drawings
构成本申请一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。The accompanying drawings constituting a part of this application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.
图1为本发明的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the present invention.
图中：1-第一轴体，11-环形卡槽，2-阶梯部，3-第二轴体，31-键槽，4-功能层。In the figure: 1-first shaft body, 11-annular card slot, 2-stepped part, 3-second shaft body, 31-key groove, 4-functional layer.
具体实施方式Detailed ways
参照图1，本发明是这样实现的：一种风力发电设备上的传动轴，它包括顺次相邻连接的第一轴体1、阶梯部2和第二轴体3，所述阶梯部2的外径尺寸大于第一轴体1和第二轴体3的外径尺寸，且第一轴体1和第二轴体3的外径尺寸保持一致。Referring to Fig. 1, the present invention is realized in the following way: a transmission shaft on a wind power generating equipment, which includes a first shaft body 1, a stepped portion 2 and a second shaft body 3 connected sequentially adjacently, the stepped portion 2 The outer diameter of the first shaft body 1 and the second shaft body 3 are larger than the outer diameters of the first shaft body 1 and the second shaft body 3, and the outer diameters of the first shaft body 1 and the second shaft body 3 are consistent.
参考图1所示，本发明中第一轴体1和第二轴体3的外圆表面设有功能层4，所述功能层4为渗氮层或碳氮共渗层；渗氮是在介质中结合一定温度使氮原子渗入工件表层的化学热处理工艺，用于改变表层的化学成分和组织，从而获得优良的表面性能，如果在渗氮过程中同时渗入碳以促进氮的扩散，则称为氮碳共渗；由于渗入钢中的氮一方面由表及里与铁形成不同含氮量的氮化铁，另一方面与钢中的合金元素结合形成各种合金氮化物，特别是氮化铝、氮化铬，这些氮化物具有很高的硬度、热稳定性和很高的弥散度，因而可使渗氮后的钢件得到高的表面硬度，韧性好，能提高工件的疲劳寿命，并且耐磨和抗大气腐蚀能力强。With reference to shown in Fig. 1, in the present invention, the outer circular surface of first axle body 1 and second axle body 3 is provided with functional layer 4, and described functional layer 4 is nitriding layer or carbonitriding layer; Nitriding is in The medium is combined with a certain temperature to make nitrogen atoms penetrate into the surface of the workpiece. It is used to change the chemical composition and structure of the surface to obtain excellent surface properties. If carbon is infiltrated at the same time during the nitriding process to promote the diffusion of nitrogen, it is called It is nitrocarburizing; on the one hand, the nitrogen infiltrated into the steel forms iron nitrides with different nitrogen contents from the surface to the inside, and on the other hand, it combines with alloying elements in the steel to form various alloy nitrides, especially nitrogen Aluminum oxide and chromium nitride, these nitrides have high hardness, thermal stability and high dispersion, so the steel parts after nitriding can obtain high surface hardness, good toughness, and can improve the fatigue life of the workpiece , and strong wear resistance and atmospheric corrosion resistance.
结合图1所示，本发明中第一轴体1的外圆表面上设有环形卡槽11，当轴承安装至第一轴体1上时，经环形卡槽11和另一端的阶梯部2可对轴承进行安装定位，从而保障轴承运转平稳可靠；所述第二轴体3的外圆表面设有延伸至外端面的键槽31，通过设置键槽31方便保障第二轴体3和发电机组的连接牢固可靠，并通过采用键槽31延伸至外端面的结构，有利于实现快速装拆，操作简单、方便。As shown in Fig. 1, an annular groove 11 is provided on the outer surface of the first shaft body 1 in the present invention. When the bearing is installed on the first shaft body 1, the annular groove 11 and the stepped portion 2 The bearing can be installed and positioned to ensure stable and reliable operation of the bearing; the outer circular surface of the second shaft body 3 is provided with a keyway 31 extending to the outer end surface, and the keyway 31 is provided to facilitate the protection of the second shaft body 3 and the generator set. The connection is firm and reliable, and by adopting the structure that the keyway 31 extends to the outer end surface, it is beneficial to realize quick assembly and disassembly, and the operation is simple and convenient.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化；凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes; within the spirit and principles of the present invention, Any modifications, equivalent replacements, improvements, etc., should be included within the protection scope of the present invention.
Claims (5)
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| CN201910603623.0A CN110332079A (en) | 2019-07-05 | 2019-07-05 | A kind of transmission shaft on wind power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112302888A (en) * | 2020-10-15 | 2021-02-02 | 江苏万顺新能源科技有限公司 | Rotating shaft structure of wind driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302888A (en) * | 2020-10-15 | 2021-02-02 | 江苏万顺新能源科技有限公司 | Rotating shaft structure of wind driven generator |
| CN112302888B (en) * | 2020-10-15 | 2021-09-28 | 江苏万顺新能源科技有限公司 | Rotating shaft structure of wind driven generator |
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Application publication date: 20191015 |
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