CN204538851U - Wind-driven generator and bearing support structure thereof - Google Patents
Wind-driven generator and bearing support structure thereof Download PDFInfo
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Abstract
Description
技术领域technical field
本实用新型涉及一种支撑结构，尤其涉及一种风力发电机及其轴承支撑结构。The utility model relates to a support structure, in particular to a wind power generator and a bearing support structure thereof.
背景技术Background technique
现代风力发电机通过叶轮(通常由多个叶片、多个变桨轴承、变桨系统以及一个轮毂组成)捕获风力中的动能，并通过风力发电机将其转化成电能。常见的风力发电机有两种形式，一种是在叶轮和发电机之间使用齿轮箱连接，另一种是叶轮直接与发电机相连接。后者作为直驱式风力发电机，由于不使用齿轮箱等增速设备，极大的降低了风力发电机的故障率和维护成本。Modern wind turbines capture kinetic energy from the wind through impellers (usually composed of multiple blades, multiple pitch bearings, a pitch system, and a hub), and convert it into electrical energy through the wind turbine. There are two types of common wind turbines, one is to use a gearbox connection between the impeller and the generator, and the other is to directly connect the impeller to the generator. The latter, as a direct-drive wind turbine, greatly reduces the failure rate and maintenance cost of the wind turbine because it does not use gear boxes and other speed-increasing equipment.
直驱式风力发电机工作时，需要保证发电机的转子和定子之间的气隙保持在一个可以接受的范围内。现有技术中，直驱式风力发电机的定子和转子至少有一个被单侧支撑，为此该支撑臂就需要被设计成刚度比较大的结构。由此，会带来两个方面的问题：一方面发电机重量较重，对主轴承的承载要求比较高，随着大功率风力发电机的普及，承载要求的问题越发凸显。另一方面风力发电机的生产、运输、吊装和维护等成本比较高。When the direct-drive wind turbine is working, it is necessary to ensure that the air gap between the rotor and the stator of the generator is kept within an acceptable range. In the prior art, at least one of the stator and the rotor of the direct-drive wind turbine is supported on one side, so the support arm needs to be designed as a relatively rigid structure. As a result, there will be two problems: on the one hand, the weight of the generator is relatively heavy, and the load-bearing requirements for the main bearing are relatively high. With the popularization of high-power wind turbines, the problem of load-bearing requirements has become more prominent. On the other hand, the production, transportation, hoisting and maintenance costs of wind turbines are relatively high.
实用新型内容Utility model content
本实用新型实施例的目的在于提供一种风力发电机及其轴承支撑结构，以在发电机的转子和定子之间的波动气隙满足要求的情况下，降低直驱式风力发电机的重量，简化装配过程。The purpose of the embodiment of the utility model is to provide a wind power generator and its bearing support structure, so as to reduce the weight of the direct drive wind power generator under the condition that the fluctuating air gap between the rotor and the stator of the generator meets the requirements. Simplify the assembly process.
为达到上述目的，本实用新型提供了一种风力发电机的轴承支撑结构，其包括桨侧轴承、塔侧轴承、定轴、风力发电机的转子以及风力发电机的定子，所述风力发电机为外转子内定子结构；所述桨侧轴承的内圈与所述定轴的桨侧一端固定连接，所述桨侧轴承的外圈与所述轮毂固定连接，所述塔侧轴承的内圈的两端分别与风力发电机的底座和所述定轴的塔侧一端固定连接；所述定子通过至少两组第一支撑臂固定在所述定轴上；所述转子通过两组第二支撑臂固定在所述桨侧轴承的外圈和所述塔侧轴承的外圈上。In order to achieve the above object, the utility model provides a bearing support structure of a wind power generator, which includes a paddle side bearing, a tower side bearing, a fixed shaft, a rotor of a wind power generator and a stator of a wind power generator, and the wind power generator It is an outer rotor inner stator structure; the inner ring of the paddle side bearing is fixedly connected to the paddle side end of the fixed shaft, the outer ring of the paddle side bearing is fixedly connected to the hub, and the inner ring of the tower side bearing The two ends of the two ends are respectively fixedly connected with the base of the wind power generator and the tower side end of the fixed shaft; the stator is fixed on the fixed shaft by at least two sets of first support arms; the rotor is fixed by two sets of second support arms An arm is fixed to the outer race of the paddle side bearing and the outer race of the tower side bearing.
本实用新型提供了一种风力发电机的轴承支撑结构，包括桨侧轴承、塔侧轴承、定轴、风力发电机的转子以及风力发电机的定子，所述风力发电机为外转子内定子结构；所述桨侧轴承和所述塔侧轴承套设在所述定轴上，所述桨侧轴承的外圈与所述轮毂固定连接，所述定轴的塔侧一端与所述风力发电机的底座固定连接；所述定子通过至少两组第一支撑臂固定在所述定轴上；所述转子通过两组第二支撑臂固定在所述桨侧轴承的外圈和所述塔侧轴承的外圈上。The utility model provides a bearing support structure of a wind power generator, comprising a paddle side bearing, a tower side bearing, a fixed shaft, a rotor of a wind power generator and a stator of the wind power generator, and the wind power generator is an outer rotor inner stator structure The paddle side bearing and the tower side bearing are sleeved on the fixed shaft, the outer ring of the paddle side bearing is fixedly connected to the hub, and the tower side end of the fixed shaft is connected to the wind power generator The base is fixedly connected; the stator is fixed on the fixed shaft through at least two sets of first support arms; the rotor is fixed on the outer ring of the paddle side bearing and the tower side bearing through two sets of second support arms on the outer ring.
本实用新型提供了一种风力发电机的轴承支撑结构，包括桨侧轴承、塔侧轴承、动轴、风力发电机的转子以及风力发电机的定子，所述风力发电机为外定子内转子结构；所述桨侧轴承的内圈的两端分别与轮毂和所述动轴的桨侧一端固定连接，所述塔侧轴承的内圈与所述动轴的塔侧一端固定连接，所述塔侧轴承的外圈与所述风力发电机的底座固定连接；所述转子通过至少两组第一支撑臂固定在所述动轴上；所述定子通过两组第二支撑臂固定在所述桨侧轴承的外圈和所述塔侧轴承的外圈上。The utility model provides a bearing support structure of a wind power generator, comprising a paddle side bearing, a tower side bearing, a moving shaft, a rotor of a wind power generator and a stator of the wind power generator, and the wind power generator is an outer stator inner rotor structure The two ends of the inner ring of the paddle side bearing are respectively fixedly connected with the wheel hub and the paddle side end of the moving shaft, the inner ring of the tower side bearing is fixedly connected with the tower side end of the moving shaft, and the tower The outer ring of the side bearing is fixedly connected to the base of the wind power generator; the rotor is fixed on the moving shaft through at least two sets of first support arms; the stator is fixed on the paddle through two sets of second support arms The outer ring of the side bearing and the outer ring of the tower side bearing.
本实用新型提供了一种风力发电机的轴承支撑结构，包括桨侧轴承、塔侧轴承、动轴、风力发电机的转子以及风力发电机的定子，所述风力发电机为外定子内转子结构；所述桨侧轴承和所述塔侧轴承套设在所述动轴上，所述桨侧轴承的内圈与轮毂固定连接，所述塔侧轴承的外圈与所述风力发电机的底座固定连接；所述转子通过至少两组第一支撑臂固定在所述动轴上；所述定子通过两组第二支撑臂固定在所述桨侧轴承的外圈和所述塔侧轴承的外圈上。The utility model provides a bearing support structure of a wind power generator, comprising a paddle side bearing, a tower side bearing, a moving shaft, a rotor of a wind power generator and a stator of the wind power generator, and the wind power generator is an outer stator inner rotor structure The paddle side bearing and the tower side bearing are sleeved on the moving shaft, the inner ring of the paddle side bearing is fixedly connected to the hub, and the outer ring of the tower side bearing is connected to the base of the wind power generator fixed connection; the rotor is fixed on the moving shaft through at least two sets of first support arms; the stator is fixed on the outer ring of the paddle side bearing and the outer ring of the tower side bearing through two sets of second support arms Circle on.
进一步地，上述任意一项所述的桨侧轴承为双列圆锥滚子轴承或者三列圆柱滚子轴承，所述的塔侧轴承为单列圆柱滚子轴承或者双列圆柱滚子轴承。Further, the paddle-side bearing described in any one of the above is a double-row tapered roller bearing or a three-row cylindrical roller bearing, and the tower-side bearing is a single-row cylindrical roller bearing or a double-row cylindrical roller bearing.
进一步地，上述任意一项所述的第一支撑臂和所述的第二支撑臂由环形钢板构成。Further, the first support arm and the second support arm described in any one of the above are composed of ring-shaped steel plates.
此外，本实用新型还提供了一种风力发电机，包括如上任一所述的风力发电机的轴承支撑结构。In addition, the utility model also provides a wind power generator, including the bearing support structure of the wind power generator as described above.
本实用新型的风力发电机及其轴承支撑结构，采用了双轴承的传动系统的布局，发电机的定子和转子的两侧分别具有支撑臂，这样的支撑机构使得风力发电机的转子和定子之间的波动气隙更加稳定。另外，双侧支撑结构能够降低支撑臂结构的整体重量，从而也降低了风力发电机的整体重量，进而降低了轴承的负荷。此外，双侧支撑结构也能够合理地分散风力发电机的载荷，进一步延长了轴承的使用寿命。The wind power generator and its bearing support structure of the utility model adopts the layout of the transmission system of double bearings, and the two sides of the stator and the rotor of the generator are respectively provided with support arms. Such a support mechanism makes the rotor and the stator of the wind power generator The fluctuating air gap between them is more stable. In addition, the double-side support structure can reduce the overall weight of the support arm structure, thereby also reducing the overall weight of the wind power generator, thereby reducing the load on the bearing. In addition, the double-side support structure can also reasonably disperse the load of the wind turbine, further prolonging the service life of the bearing.
附图说明Description of drawings
图1为本实用新型实施例一的轴承支撑结构的结构示意图；Fig. 1 is a structural schematic diagram of a bearing support structure according to Embodiment 1 of the utility model;
图2为本实用新型实施例二的轴承支撑结构的结构示意图；Fig. 2 is a structural schematic diagram of the bearing support structure of the second embodiment of the utility model;
图3为本实用新型实施例三的轴承支撑结构的结构示意图；Fig. 3 is a structural schematic diagram of the bearing support structure of the third embodiment of the utility model;
图4为本实用新型实施例四的轴承支撑结构的结构示意图。Fig. 4 is a structural schematic diagram of a bearing support structure according to Embodiment 4 of the present invention.
附图标号说明：Explanation of reference numbers:
1-浆侧轴承；2-塔侧轴承；3-定轴；4-转子；5-定子；6-轮毂；7-底座；8-第一支撑臂；9-第二支撑臂；10-叶轮；101-叶片；102-变桨轴承；11-偏航轴承；12-塔架；13-动轴。1- paddle side bearing; 2- tower side bearing; 3- fixed shaft; 4- rotor; 5- stator; 6- hub; 7- base; 8- first support arm; 9- second support arm; 10- impeller ; 101-blade; 102-pitch bearing; 11-yaw bearing; 12-tower; 13-moving shaft.
具体实施方式Detailed ways
下面结合附图对本实用新型的实施例进行详细描述。Embodiments of the utility model are described in detail below in conjunction with the accompanying drawings.
本实用新型的风力发电机的轴承支撑结构，通过设计双轴承的传动系布局，在发电机的转子和定子之间的波动气隙满足要求的情况下，降低了支撑臂的重量，减少了轴承的使用量，从而降低直驱式风力发电机的重量，简化装配过程，降低成本。The bearing support structure of the wind power generator of the utility model, by designing the layout of the transmission system of double bearings, under the condition that the fluctuating air gap between the rotor and the stator of the generator meets the requirements, the weight of the support arm and the bearing capacity are reduced. usage, thereby reducing the weight of the direct-drive wind turbine, simplifying the assembly process, and reducing costs.
实施例一Embodiment one
如图1所示，其为本实用新型实施例一的轴承支撑结构的结构示意图。图中左侧为浆侧，右侧为塔侧。本实用新型实施例的风力发电机的轴承支撑结构，包括桨侧轴承1、塔侧轴承2、定轴3、风力发电机的转子4以及风力发电机的定子5，风力发电机为外转子内定子结构。桨侧轴承1的内圈与定轴3的桨侧一端固定连接，桨侧轴承1的外圈与轮毂6固定连接，塔侧轴承2的内圈的两端分别与风力发电机的底座7和定轴3的塔侧一端固定连接。定子5通过至少两组第一支撑臂8固定在定轴3上。转子4通过两组第二支撑臂9固定在桨侧轴承1的外圈和塔侧轴承2的外圈上。其中，本实用新型实施例的第一支撑臂8优选为两组，两组第一支撑臂8和第二支撑臂9分别位于定子5和转子4的两侧。As shown in FIG. 1 , it is a structural schematic diagram of a bearing support structure in Embodiment 1 of the present utility model. The left side of the figure is the slurry side, and the right side is the tower side. The bearing support structure of the wind power generator in the embodiment of the utility model includes the paddle side bearing 1, the tower side bearing 2, the fixed shaft 3, the rotor 4 of the wind power generator and the stator 5 of the wind power generator. substructure. The inner ring of the paddle side bearing 1 is fixedly connected to the paddle side end of the fixed shaft 3, the outer ring of the paddle side bearing 1 is fixedly connected to the hub 6, and the two ends of the inner ring of the tower side bearing 2 are respectively connected to the base 7 and One end of the tower side of the fixed shaft 3 is fixedly connected. The stator 5 is fixed on the fixed shaft 3 through at least two sets of first support arms 8 . The rotor 4 is fixed on the outer ring of the paddle side bearing 1 and the outer ring of the tower side bearing 2 through two sets of second support arms 9 . Among them, the first support arms 8 in the embodiment of the present utility model are preferably two groups, and the two groups of first support arms 8 and second support arms 9 are respectively located on both sides of the stator 5 and the rotor 4 .
本实用新型的实施例通过一种双轴承(浆侧轴承1和塔侧轴承2)的传动系布置，使得风力发电机的定子5和转子4的两侧分别具有支撑臂，在保证直驱式风力发电机运行时发电机转子4与发电机定子5之间的气隙变化较小的前提下，能够降低了支撑臂的整体重量，从而使得风力发电机的整体重量减少，降低了轴承的负荷，也减少了制造成本。The embodiment of the utility model adopts a transmission arrangement of double bearings (the paddle side bearing 1 and the tower side bearing 2), so that the two sides of the stator 5 and the rotor 4 of the wind power generator have support arms respectively, ensuring that the direct drive Under the premise that the air gap between the generator rotor 4 and the generator stator 5 changes little when the wind generator is running, the overall weight of the support arm can be reduced, thereby reducing the overall weight of the wind generator and reducing the load on the bearings , also reduces the manufacturing cost.
上述结构中，风力发电机的叶片101通过螺栓连接固定在变桨轴承102上，变桨轴承102连接到轮毂6上。轮毂6通过螺栓连接固定在浆侧轴承1的外圈上，风力发电机的定子5通过两组第一支撑臂8固定在上述定轴3上，风力发电机的转子4通过两组第二支撑臂9固定在浆侧轴承1的外圈和塔侧轴承2的外圈上，上述叶片101、变桨轴承102、轮毂6和相应的变桨系统共同构成叶轮10，叶轮10带动风力发电机的转子4旋转。浆侧轴承1的内圈和塔侧轴承2的内圈分别固定在定轴3的浆侧一端和塔侧一端，塔侧轴承2的内圈还固定在风力发电机的底座7上。底座7通过偏航轴承11与塔架12相连。In the above structure, the blades 101 of the wind power generator are fixed on the pitch bearing 102 through bolt connection, and the pitch bearing 102 is connected to the hub 6 . The hub 6 is fixed on the outer ring of the paddle side bearing 1 through bolt connection, the stator 5 of the wind-driven generator is fixed on the above-mentioned fixed shaft 3 through two sets of first support arms 8, and the rotor 4 of the wind-driven generator is supported by two sets of second supports The arm 9 is fixed on the outer ring of the paddle side bearing 1 and the outer ring of the tower side bearing 2. The blades 101, the pitch bearing 102, the hub 6 and the corresponding pitch system together constitute the impeller 10, and the impeller 10 drives the wind turbine. The rotor 4 rotates. The inner ring of the paddle side bearing 1 and the inner ring of the tower side bearing 2 are respectively fixed on the paddle side end and the tower side end of the fixed shaft 3, and the inner ring of the tower side bearing 2 is also fixed on the base 7 of the wind turbine. The base 7 is connected to the tower 12 through the yaw bearing 11 .
优选地，上述的第一支撑臂8和第二支撑臂9可以由环形钢板构成，这样，在满足支撑臂承载要求的情况下，降低了支撑臂的重量，降低了风力发电机的运输、吊装成本，经济性比较好，降低了装配难度。Preferably, the above-mentioned first support arm 8 and second support arm 9 can be made of ring-shaped steel plates. In this way, the weight of the support arm is reduced while the load-bearing requirements of the support arm are met, and the transportation and hoisting of the wind turbine are reduced. The cost and economy are relatively good, and the difficulty of assembly is reduced.
此外，为了使轴承满足相应位置的承载要求，桨侧轴承1可以为双列圆锥滚子轴承，也可以为三列圆柱滚子轴承，塔侧轴承2可以为单列圆柱滚子轴承，也可以为双列圆柱滚子轴承。In addition, in order to make the bearing meet the bearing requirements of the corresponding position, the paddle side bearing 1 can be a double-row tapered roller bearing, or a three-row cylindrical roller bearing, and the tower side bearing 2 can be a single-row cylindrical roller bearing, or it can be a Double row cylindrical roller bearings.
实施例二Embodiment two
如图2所示，其为本实用新型实施例二的轴承支撑结构的结构示意图。作为一种可替换的方案，本实用新型实施例提供的风力发电机的轴承支撑结构与实施例一的主要区别在于：桨侧轴承1和塔侧轴承2套设在定轴3上，桨侧轴承1的外圈与轮毂6固定连接，定轴3的塔侧一端与风力发电机的底座7固定连接。定子5通过至少两组第一支撑臂8固定在定轴3上。转子4可以通过两组第二支撑臂9固定在桨侧轴承1的外圈和塔侧轴承2的外圈上。As shown in FIG. 2 , it is a structural schematic diagram of the bearing support structure of Embodiment 2 of the present invention. As an alternative solution, the main difference between the bearing support structure of the wind power generator provided by the embodiment of the present invention and the first embodiment is that the paddle side bearing 1 and the tower side bearing 2 are sleeved on the fixed shaft 3, and the paddle side The outer ring of the bearing 1 is fixedly connected with the hub 6, and the tower side end of the fixed shaft 3 is fixedly connected with the base 7 of the wind power generator. The stator 5 is fixed on the fixed shaft 3 through at least two sets of first support arms 8 . The rotor 4 can be fixed on the outer ring of the paddle side bearing 1 and the outer ring of the tower side bearing 2 through two sets of second support arms 9 .
实施例三Embodiment three
如图3所示，其为本实用新型实施例三的轴承支撑结构的结构示意图。作为一种可替换方案，本实用新型的实施例还提供了一种风力发电机的轴承支撑结构，包括桨侧轴承1、塔侧轴承2、动轴13、风力发电机的转子4以及风力发电机的定子5，风力发电机为外定子内转子结构；桨侧轴承1的内圈的两端分别与轮毂6和动轴13的桨侧一端固定连接，塔侧轴承2的内圈与动轴13的塔侧一端固定连接，塔侧轴承2的外圈与风力发电机的底座7固定连接；转子4通过至少两组第一支撑臂8固定在动轴13上；定子5通过两组第二支撑臂9固定在桨侧轴承1的外圈和塔侧轴承2的外圈上。As shown in FIG. 3 , it is a structural schematic diagram of the bearing support structure of Embodiment 3 of the present invention. As an alternative solution, the embodiment of the present utility model also provides a bearing support structure of a wind power generator, including a paddle side bearing 1, a tower side bearing 2, a moving shaft 13, a rotor 4 of a wind power generator and a wind power generator The stator 5 of the machine, the wind power generator is an outer stator inner rotor structure; the two ends of the inner ring of the paddle side bearing 1 are fixedly connected with the hub 6 and the paddle side end of the moving shaft 13 respectively, and the inner ring of the tower side bearing 2 is connected with the moving shaft One end of the tower side of 13 is fixedly connected, and the outer ring of the tower side bearing 2 is fixedly connected with the base 7 of the wind power generator; the rotor 4 is fixed on the moving shaft 13 through at least two sets of first support arms 8; the stator 5 is fixed on the moving shaft 13 through two sets of second The support arm 9 is fixed on the outer ring of the paddle side bearing 1 and the outer ring of the tower side bearing 2 .
本实用新型的实施例通过一种双轴承(浆侧轴承1和塔侧轴承2)的传动系布置，使得风力发电机的定子5和转子4的两侧分别具有支撑臂，在保证直驱式风力发电机运行时发电机转子4与发电机定子5之间的气隙变化较小的前提下，能够降低了支撑臂的整体重量，从而使得风力发电机的整体重量减少，降低了轴承的负荷，也减少了制造成本。The embodiment of the utility model adopts a transmission arrangement of double bearings (the paddle side bearing 1 and the tower side bearing 2), so that the two sides of the stator 5 and the rotor 4 of the wind power generator have support arms respectively, ensuring the direct drive Under the premise that the air gap between the generator rotor 4 and the generator stator 5 changes little when the wind generator is running, the overall weight of the support arm can be reduced, thereby reducing the overall weight of the wind generator and reducing the load on the bearings , also reduces the manufacturing cost.
上述结构中，风力发电机的叶片101通过螺栓连接固定在变桨轴承102上，变桨轴承102连接到轮毂6上，轮毂6通过螺栓与浆侧轴承1的内圈相连。风力发电机的转子4位于定子5的内部。风力发电机的转子4通过两组第一支撑臂8固定在上述动轴13上，风力发电机的定子5通过两组第二支撑臂9分别与浆侧轴承1和塔侧轴承2的外圈相连，塔侧轴承2的外圈固定在底座7上，浆侧轴承1的内圈和塔侧轴承2的内圈分别固定在动轴13的浆侧一端和塔侧一端。上述叶片101、变桨轴承102、轮毂6和相应的变桨系统共同构成叶轮10，叶轮10带动风力发电机的转子4旋转。In the above structure, the blades 101 of the wind power generator are fixed on the pitch bearing 102 through bolt connection, the pitch bearing 102 is connected to the hub 6, and the hub 6 is connected to the inner ring of the pitch side bearing 1 through bolts. The rotor 4 of the wind generator is located inside the stator 5 . The rotor 4 of the wind power generator is fixed on the above-mentioned moving shaft 13 through two sets of first support arms 8, and the stator 5 of the wind power generator is respectively connected to the outer rings of the paddle side bearing 1 and the tower side bearing 2 through two sets of second support arms 9. Connected, the outer ring of the tower side bearing 2 is fixed on the base 7, the inner ring of the paddle side bearing 1 and the inner ring of the tower side bearing 2 are respectively fixed on the paddle side end and the tower side end of the moving shaft 13. The blades 101 , the pitch bearing 102 , the hub 6 and the corresponding pitch system together constitute the impeller 10 , and the impeller 10 drives the rotor 4 of the wind power generator to rotate.
优选地，上述的第一支撑臂8和第二支撑臂9可以由环形钢板构成。在满足支撑臂承载要求的情况下，降低了支撑臂的重量，降低了风力发电机的运输、吊装成本，经济性比较好，降低了装配难度。Preferably, the above-mentioned first support arm 8 and second support arm 9 can be made of ring-shaped steel plates. In the case of meeting the bearing requirements of the support arm, the weight of the support arm is reduced, the transportation and hoisting costs of the wind power generator are reduced, the economy is relatively good, and the difficulty of assembly is reduced.
此外，为了使轴承满足相应的承载要求，桨侧轴承1可以为双列圆锥滚子轴承，也可以为三列圆柱滚子轴承，塔侧轴承2可以为单列圆柱滚子轴承，也可以为双列圆柱滚子轴承。In addition, in order to make the bearing meet the corresponding bearing requirements, the paddle side bearing 1 can be a double-row tapered roller bearing or a three-row cylindrical roller bearing, and the tower side bearing 2 can be a single-row cylindrical roller bearing or a double-row cylindrical roller bearing. Cylindrical roller bearings.
实施例四Embodiment four
如图4所示，其为本实用新型实施例四的轴承支撑结构的结构示意图。作为一种可替换的方案，本实用新型实施例提供的风力发电机的轴承支撑结构与实施例三的主要区别在于：桨侧轴承1和塔侧轴承2套设在动轴13上，桨侧轴承1的内圈与轮毂6固定连接，塔侧轴承2的外圈与风力发电机的底座7固定连接；转子4通过至少两组第一支撑臂8固定在动轴13上；定子5通过两组第二支撑臂9固定在桨侧轴承1的外圈和塔侧轴承2的外圈上。As shown in FIG. 4 , it is a structural schematic diagram of the bearing support structure of Embodiment 4 of the present utility model. As an alternative solution, the main difference between the bearing support structure of the wind power generator provided by the embodiment of the present invention and the third embodiment is that the paddle side bearing 1 and the tower side bearing 2 are sleeved on the moving shaft 13, and the paddle side The inner ring of the bearing 1 is fixedly connected to the hub 6, and the outer ring of the tower side bearing 2 is fixedly connected to the base 7 of the wind power generator; the rotor 4 is fixed on the moving shaft 13 by at least two sets of first support arms 8; the stator 5 is fixed by two The set of second support arms 9 is fixed on the outer ring of the paddle side bearing 1 and the outer ring of the tower side bearing 2 .
此外，本实用新型还提供了一种风力发电机，包括以上任一实施例的风力发电机的轴承支撑结构。In addition, the utility model also provides a wind power generator, including the bearing support structure of the wind power generator in any one of the above embodiments.
综上所述，本实用新型的风力发电机及其轴承支撑结构具有如下优点：In summary, the wind power generator and its bearing support structure of the present invention have the following advantages:
1、采用了双轴承的传动系统的布局，发电机的定子和转子的两侧分别具有支撑臂，这样的支撑机构使得风力发电机的转子和定子之间的波动气隙更加稳定。1. The layout of the transmission system with double bearings is adopted. There are support arms on both sides of the stator and rotor of the generator respectively. Such a support mechanism makes the fluctuating air gap between the rotor and stator of the wind turbine more stable.
2、双侧支撑结构能够降低支撑臂结构的整体重量，从而也降低了风力发电机的整体重量，进而降低了轴承的负荷。双侧支撑结构也能够合理地分散风力发电机的载荷，进一步延长了轴承的使用寿命。2. The double-side support structure can reduce the overall weight of the support arm structure, thereby also reducing the overall weight of the wind power generator, thereby reducing the load on the bearing. The double-side support structure can also reasonably disperse the load of the wind turbine, further prolonging the service life of the bearing.
3、支撑臂采用环形钢板构成。在满足支撑臂承载要求的情况下，进一步降低了支撑臂的重量，降低了风力发电机的运输、吊装成本，经济性比较好，降低了装配难度。3. The support arm is made of circular steel plate. In the case of meeting the bearing requirements of the support arm, the weight of the support arm is further reduced, the transportation and hoisting costs of the wind power generator are reduced, the economy is relatively good, and the difficulty of assembly is reduced.
以上所述，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以所述权利要求的保护范围为准。The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.
Claims (7)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305708A (en) * | 2015-10-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Motor, wind generating set and rigidity adjusting device |
| CN105464899A (en) * | 2015-12-15 | 2016-04-06 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN109826764A (en) * | 2019-03-13 | 2019-05-31 | 浙江大学 | Bearing cooling device and wind turbine comprising the same |
| CN109973313A (en) * | 2017-12-27 | 2019-07-05 | 威海银河风力发电有限公司 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
-
2015
- 2015-04-30 CN CN201520278028.1U patent/CN204538851U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305708A (en) * | 2015-10-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Motor, wind generating set and rigidity adjusting device |
| CN105305708B (en) * | 2015-10-13 | 2018-07-31 | 北京金风科创风电设备有限公司 | Motor, wind turbine and stiffness adjustment device |
| CN105464899A (en) * | 2015-12-15 | 2016-04-06 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN105464899B (en) * | 2015-12-15 | 2018-07-31 | 北京金风科创风电设备有限公司 | Wind turbines and wind turbines |
| CN109973313A (en) * | 2017-12-27 | 2019-07-05 | 威海银河风力发电有限公司 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
| CN109826764A (en) * | 2019-03-13 | 2019-05-31 | 浙江大学 | Bearing cooling device and wind turbine comprising the same |
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