CN115199643A - Torsional damping bearing, photovoltaic tracking support and photovoltaic system - Google Patents
Torsional damping bearing, photovoltaic tracking support and photovoltaic systemDownload PDFInfo
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- CN115199643A CN115199643ACN202210985776.8ACN202210985776ACN115199643ACN 115199643 ACN115199643 ACN 115199643ACN 202210985776 ACN202210985776 ACN 202210985776ACN 115199643 ACN115199643 ACN 115199643A
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- outer ring
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/005—Fluid passages not relating to lubrication or cooling
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/161—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material characterised by the fluid damping devices, e.g. passages, orifices
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/04—Damper
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及弹性阻尼构件技术领域，特别涉及一种扭转阻尼轴承。本发明还涉及一种包括上述扭转阻尼轴承的光伏跟踪支架。本发明由涉及一种包括上述光伏跟踪支架的光伏系统。The invention relates to the technical field of elastic damping components, in particular to a torsional damping bearing. The present invention also relates to a photovoltaic tracking bracket comprising the above torsional damping bearing. The present invention generally relates to a photovoltaic system comprising the above photovoltaic tracking support.
背景技术Background technique
光伏跟踪器是一种能实时调节光伏组件的倾角以使光伏组件随时正对太阳的动力装置，光伏跟踪器能够有效提升光伏组件接收到的太阳辐射量。A photovoltaic tracker is a power device that can adjust the inclination of photovoltaic modules in real time so that the photovoltaic modules face the sun at any time. The photovoltaic tracker can effectively increase the amount of solar radiation received by the photovoltaic modules.
在光伏跟踪器运行的过程中，安装在主梁的转动梁上的光伏跟踪结构件容易受到自然因素的影响，如风、雪、沙尘等，同时，随着大功率光伏组件的应用，光伏组件的尺寸增大且柔度增加，使作用在光伏组件表面的风荷载更大、风致振动效应明显，导致光伏跟踪器更容易在大风天气下发生破坏。During the operation of the photovoltaic tracker, the photovoltaic tracking structure installed on the rotating beam of the main beam is easily affected by natural factors, such as wind, snow, sand and dust. At the same time, with the application of high-power photovoltaic modules, photovoltaic The increase in the size and flexibility of the module makes the wind load acting on the surface of the photovoltaic module larger and the wind-induced vibration effect is obvious, which makes the photovoltaic tracker more likely to be damaged in windy weather.
同理，在存在扭转的转动梁装置中同样存在上述问题，导致转动梁的稳定性降低。Similarly, the above-mentioned problems also exist in the rotating beam device with torsion, which leads to a decrease in the stability of the rotating beam.
因此，如何提高转动梁的稳定性，是本领域技术人员亟待解决的技术问题。Therefore, how to improve the stability of the rotating beam is a technical problem to be solved urgently by those skilled in the art.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种扭转阻尼轴承，以提高转动梁的稳定性。本发明的另一目的是提供一种包括上述扭转阻尼轴承的光伏跟踪支架。本发明的又一目的是提供一种包括上述光伏跟踪支架的光伏系统。The purpose of the present invention is to provide a torsional damping bearing to improve the stability of the rotating beam. Another object of the present invention is to provide a photovoltaic tracking bracket including the above-mentioned torsional damping bearing. Another object of the present invention is to provide a photovoltaic system including the above photovoltaic tracking bracket.
为实现上述目的，本发明提供一种扭转阻尼轴承包括：In order to achieve the above object, the present invention provides a torsional damping bearing comprising:
轴承外圈；bearing outer ring;
轴承内圈，所述轴承内圈的外圈面设有与所述轴承外圈的内圈面密封贴合的接触位，所述轴承外圈和所述轴承内圈之间的第一腔体通过所述接触位分隔为绕所述轴承内圈周向设置的至少三个第二腔体；The bearing inner ring, the outer ring surface of the bearing inner ring is provided with a contact position that is sealed and fitted with the inner ring surface of the bearing outer ring, the first cavity between the bearing outer ring and the bearing inner ring The contact position is divided into at least three second cavities circumferentially arranged around the inner ring of the bearing;
弹性活动组件，所述弹性活动组件设置在所述第二腔体内，数量至少为一个，所述轴承外圈的内圈面和所述轴承内圈的外圈面一者与所述弹性活动组件滑动连接，另一者与所述弹性活动组件的抵接端弹性抵接，所述弹性活动组件将所述第二腔体分隔为至少两个分隔腔体；an elastic movable assembly, the elastic movable assembly is disposed in the second cavity, and the number of the elastic movable assembly is at least one, and one of the inner ring surface of the bearing outer ring and the outer ring surface of the bearing inner ring is connected to the elastic movable assembly a sliding connection, and the other is in elastic contact with the abutting end of the elastic movable component, and the elastic movable component divides the second cavity into at least two divided cavities;
用于密封所述第一腔体外侧的盖板，所述轴承内圈和所述轴承外圈均与所述盖板壁面密封连接，所述弹性活动组件与所述盖板密封贴合；a cover plate used to seal the outer side of the first cavity, the bearing inner ring and the bearing outer ring are both in sealing connection with the wall surface of the cover plate, and the elastic movable component is sealed and fitted with the cover plate;
及密封填充在所述第二腔体内的流体，当所述轴承内圈转动时，所述弹性活动组件能够在所述第二腔体内往复滑动，所述流体通过所述抵接端形变后与所述轴承外圈或所述轴承内圈形成的间隙由所述弹性活动组件一侧体积变小的分隔腔体流动进入所述弹性活动组件另一侧体积变大的分隔腔体，产生阻尼力。and sealing the fluid filled in the second cavity, when the inner ring of the bearing rotates, the elastic movable component can slide back and forth in the second cavity, the fluid is deformed through the abutting end and The gap formed by the outer ring of the bearing or the inner ring of the bearing flows from the partition cavity with a smaller volume on one side of the elastic movable component into the partition cavity with a larger volume on the other side of the elastic movable component to generate a damping force .
优选地，所述轴承外圈的内圈面与所述弹性活动组件滑动连接，所述轴承外圈内圈面相对两侧设有供所述弹性活动组件往复滑动的滑道。。Preferably, the inner ring surface of the bearing outer ring is slidably connected to the elastic movable assembly, and opposite sides of the inner ring surface of the bearing outer ring are provided with slideways for the elastic movable assembly to reciprocately slide. .
优选地，所述轴承外圈的内圈面设有容置所述弹性活动组件，且限制所述弹性活动组件滑动行程的限位槽，所述弹性活动组件与所述限位槽的槽底滑动密封连接。Preferably, the inner ring surface of the outer ring of the bearing is provided with a limit groove for accommodating the elastic movable assembly and limiting the sliding stroke of the elastic movable assembly, the elastic movable assembly and the groove bottom of the limit groove Sliding seal connection.
优选地，所述轴承外圈的内圈面为圆环形表面。Preferably, the inner ring surface of the bearing outer ring is an annular surface.
优选地，所述轴承内圈的外圈面沿所述轴承内圈轴向方向投影为多边形，所述轴承内圈的中心与所述轴承外圈的中心重合。Preferably, the outer ring surface of the bearing inner ring is projected as a polygon along the axial direction of the bearing inner ring, and the center of the bearing inner ring coincides with the center of the bearing outer ring.
优选地，所述多边形为勒洛三角形，或者所述多边形由至少四个线段依次首尾相连组成。Preferably, the polygon is a Leroy triangle, or the polygon is composed of at least four line segments connected end to end in sequence.
优选地，所述接触位为与所述轴承外圈贴合的圆弧形表面。Preferably, the contact position is an arc-shaped surface that fits with the outer ring of the bearing.
优选地，所述流体为粘性液体或压缩气体。Preferably, the fluid is a viscous liquid or a compressed gas.
一种光伏跟踪支架，包括转动梁及安装在转动梁上的扭转阻尼轴承，扭转阻尼轴承为上述任一项扭转阻尼轴承。A photovoltaic tracking bracket includes a rotating beam and a torsional damping bearing mounted on the rotating beam, wherein the torsional damping bearing is any one of the above-mentioned torsional damping bearings.
一种光伏系统，包括光伏跟踪支架及安装在光伏跟踪支架上的光伏组件，光伏跟踪支架为上述光伏跟踪支架。A photovoltaic system includes a photovoltaic tracking bracket and a photovoltaic component installed on the photovoltaic tracking bracket, and the photovoltaic tracking bracket is the above-mentioned photovoltaic tracking bracket.
在上述技术方案中，本发明提供的扭转阻尼轴承包括轴承外圈、轴承内圈、弹性活动组件、盖板和流体；轴承内圈的外圈面设有与轴承外圈的内圈面密封贴合的接触位，轴承外圈和轴承内圈之间的第一腔体通过接触位分隔为绕轴承内圈周向设置的至少三个第二腔体；弹性活动组件设置在第二腔体内，数量至少为一个，轴承内圈的外圈面和轴承外圈的内圈面一者与弹性活动组件滑动连接，另一者与弹性活动组件的抵接端弹性抵接。盖板用于密封第二腔体外侧，轴承内圈和轴承外圈均与盖板壁面密封连接，弹性活动组件与盖板密封贴合；弹性活动组件将第二腔体阻隔为至少两个分隔腔体；流体密封填充在第二腔体内，当轴承内圈转动时，弹性活动组件在第二腔体内往复滑动，流体通过抵接端形变后与轴承外圈或轴承内圈形成的间隙由弹性活动组件一侧体积变小的分隔腔体流动进入弹性活动组件另一侧体积变大的分隔腔体，产生阻尼力。In the above technical solution, the torsional damping bearing provided by the present invention includes a bearing outer ring, a bearing inner ring, an elastic movable component, a cover plate and a fluid; the outer ring surface of the bearing inner ring is provided with a sealing sticker with the inner ring surface of the bearing outer ring The first cavity between the bearing outer ring and the bearing inner ring is divided into at least three second cavities circumferentially arranged around the bearing inner ring through the contact position; the elastic movable component is arranged in the second cavity, The number is at least one, one of the outer ring surface of the bearing inner ring and the inner ring surface of the bearing outer ring is slidably connected with the elastic movable component, and the other is in elastic contact with the abutting end of the elastic movable component. The cover plate is used to seal the outside of the second cavity, the inner ring of the bearing and the outer ring of the bearing are both sealed and connected to the wall surface of the cover plate, and the elastic movable component is sealed with the cover plate; the elastic movable component blocks the second cavity into at least two partitions Cavity; the fluid seal is filled in the second cavity. When the inner ring of the bearing rotates, the elastic movable component slides back and forth in the second cavity. The partition cavity with the smaller volume on one side of the movable component flows into the partition cavity with the larger volume on the other side of the elastic movable component to generate damping force.
当转动梁带动轴承内圈转动时，弹性活动组件在摩擦力的作用下沿轴承内圈转动方向同步滑动，迫使流体通过弹性活动组件与轴承外圈或轴承内圈之间形成的间隙从一侧体积变小的分隔腔体缓慢流动进入另一侧体积变大的分隔腔体，弹性活动组件起到阻碍流体在两个腔体之间流动的作用，从而产生阻尼力。具体的，轴承内圈在转动过程中通过摩擦力改变弹性活动组件位置，使得弹性活动组件在滑动过程中产生弹性变形，从而改变弹性活动组件的抵接端与轴承内圈或轴承外圈的贴合状态，进一步改变弹性活动组件阻碍流体在两个分隔腔体之间流动的能力，从而调节产生阻尼力的大小。When the rotating beam drives the bearing inner ring to rotate, the elastic movable component slides synchronously along the rotation direction of the bearing inner ring under the action of friction force, forcing the fluid to pass through the gap formed between the elastic movable component and the bearing outer ring or the bearing inner ring from one side. The partition cavity with reduced volume flows slowly into the partition cavity with large volume on the other side, and the elastic movable component acts to hinder the flow of fluid between the two cavities, thereby generating a damping force. Specifically, the inner ring of the bearing changes the position of the elastic movable component through friction during the rotation process, so that the elastic movable component is elastically deformed during the sliding process, thereby changing the contact between the abutting end of the elastic movable component and the bearing inner ring or the bearing outer ring. The closed state further changes the ability of the elastic movable component to hinder the flow of fluid between the two separated cavities, thereby adjusting the magnitude of the generated damping force.
通过上述描述可知，在本申请提供的扭转阻尼轴承中，通过将弹性活动组件及设置在第二腔体内流体的相互作用，对安装在扭转阻尼轴承上的转动梁产生阻尼作用，进入有效抑制转动梁的扭转振动，提高转动梁的稳定性。It can be seen from the above description that in the torsional damping bearing provided by the present application, through the interaction between the elastic movable component and the fluid disposed in the second cavity, a damping effect is generated on the rotating beam installed on the torsional damping bearing, and the rotation is effectively inhibited. The torsional vibration of the beam improves the stability of the rotating beam.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative efforts.
图1为本发明实施例所提供的扭转阻尼轴承的三维结构图；1 is a three-dimensional structural diagram of a torsional damping bearing provided by an embodiment of the present invention;
图2为本发明实施例所提供的除去盖板的扭转阻尼轴承的三维结构图；2 is a three-dimensional structural diagram of a torsional damping bearing with a cover plate removed according to an embodiment of the present invention;
图3为本发明实施例所提供的扭转阻尼轴承的结构示意图；3 is a schematic structural diagram of a torsional damping bearing provided by an embodiment of the present invention;
图4为本发明实施例所提供的轴承内圈的结构示意图；4 is a schematic structural diagram of a bearing inner ring provided by an embodiment of the present invention;
图5为本发明实施例所提供的轴承内圈的三维结构图；5 is a three-dimensional structural diagram of a bearing inner ring provided by an embodiment of the present invention;
图6为本发明实施例所提供的轴承内圈的外圈面为四边形的整体结构示意图。FIG. 6 is a schematic diagram of an overall structure in which the outer ring surface of the inner ring of the bearing provided by the embodiment of the present invention is a quadrilateral.
图7为本发明实施例所提供的扭转阻尼轴承的流体流向示意图；7 is a schematic diagram of a fluid flow of a torsional damping bearing provided by an embodiment of the present invention;
图8为本发明实施例所提供的轴承外圈的结构示意图；8 is a schematic structural diagram of a bearing outer ring provided by an embodiment of the present invention;
图9为本发明实施例所提供的轴承外圈的三维结构图；9 is a three-dimensional structural diagram of a bearing outer ring provided by an embodiment of the present invention;
图10为本发明实施例所提供的轴承本体的结构示意图；10 is a schematic structural diagram of a bearing body provided by an embodiment of the present invention;
图11为本发明实施例所提供的轴承本体的三维结构图；11 is a three-dimensional structural diagram of a bearing body provided by an embodiment of the present invention;
图12为本发明实施例所提供的轴承内圈与轴承外圈的配合的结构示意图；12 is a schematic structural diagram of the cooperation between the bearing inner ring and the bearing outer ring according to an embodiment of the present invention;
图13为本发明实施例所提供的轴承内圈与轴承外圈的配合三维结构图；13 is a three-dimensional structural diagram of the fitting of the bearing inner ring and the bearing outer ring according to an embodiment of the present invention;
图14为本发明实施例所提供的光伏跟踪支架的结构示意图；14 is a schematic structural diagram of a photovoltaic tracking support provided by an embodiment of the present invention;
图15为本发明实施例所提供的光伏系统的结构示意图。FIG. 15 is a schematic structural diagram of a photovoltaic system provided by an embodiment of the present invention.
其中图1-15中：1、轴承外圈；1-1、限位槽；2、轴承内圈；2-1、接触位；3、轴承本体；4、弹性活动组件；5、转动梁；6、扭转阻尼轴承；7、盖板；8、檩条；9、立柱上连接件；10、支撑立柱；11、光伏组件；12、分隔腔体。In Figure 1-15: 1. Bearing outer ring; 1-1, Limit groove; 2. Bearing inner ring; 2-1, Contact position; 3. Bearing body; 6. Torsional damping bearing; 7. Cover plate; 8. Purlin; 9. Connecting piece on the column; 10. Support column; 11. Photovoltaic module; 12. Separation cavity.
具体实施方式Detailed ways
本发明提供一种扭转阻尼轴承，以提高转动梁的稳定性。本发明还提供一种包括上述扭转阻尼轴承的光伏跟踪支架。本发明还提供一种包括上述光伏跟踪支架的光伏系统。The present invention provides a torsional damping bearing to improve the stability of the rotating beam. The present invention also provides a photovoltaic tracking bracket including the above torsional damping bearing. The present invention also provides a photovoltaic system including the above photovoltaic tracking bracket.
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和实施方式对本发明作进一步的详细说明。In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
在一种具体实施方式中，如图1至图3所示，本发明具体实施例提供的扭转阻尼轴承包括轴承外圈1、轴承内圈2、弹性活动组件4、盖板7、轴承本体3和流体。In a specific embodiment, as shown in FIGS. 1 to 3 , the torsional damping bearing provided by the specific embodiment of the present invention includes a bearing
如图2所示，在一种具体实施方式中，轴承内圈2的内圈面贴合在轴承本体3的外圈面，轴承本体3的中心设有梁安装孔，梁安装孔形状根据转动梁5形状而定，其中梁安装孔可以为矩形孔、方孔等。As shown in FIG. 2, in a specific embodiment, the inner ring surface of the bearing
为了便于安装，优选地，轴承外圈1的底端设置为其底部可以通过螺栓等方式固接于立柱顶部的支撑平台。In order to facilitate installation, preferably, the bottom end of the bearing
如图4和图5所示，轴承内圈2的外圈面设有与轴承外圈1的内圈面密封贴合的接触位2-1，其中，轴承外圈1的内圈面可以为圆环形，轴承内圈2的外圈面的凸起部位形成接触位2-1与轴承外圈1滑动密封贴合。As shown in Fig. 4 and Fig. 5 , the outer ring surface of the bearing
轴承外圈1和轴承内圈2之间的第一腔体通过接触位2-1分隔为绕轴承内圈2周向设置的至少三个第二腔体；弹性活动组件4设置在第二腔体，轴承内圈2的外圈面和轴承外圈1的内圈面一者与弹性活动组件4滑动连接，另一者与弹性活动组件4的抵接端弹性抵接。The first cavity between the bearing
具体的，轴承内圈2的外圈面沿轴承内圈2轴向方向投影为多边形，轴承内圈2的外圈面的顶点与轴承外圈1紧密接触，使轴承内圈2被划分出多个相互独立且密封的第二腔体。具体的，多边形由至少三个线段依次首尾相连组成，例如多边形为三角形。或者多边形由至少四个线段依次首尾相连组成，例如四边形、五边形、六边形等，如图6所示，轴承内圈2为四边形结构。Specifically, the outer ring surface of the bearing
优选，轴承内圈2的外圈面沿轴承内圈2轴向方向投影为多边形为三角形或四边形，因为轴承内圈2的边数会影响轴承可以转过的最大角度，如轴承内圈2为三角形结构，每个第二腔体对应的角度为120度，考虑活动弹性组件4位于第二腔体中间，且具有一定的活动性(会随着轴承内圈2的转动向同方向滑动)，则扭转阻尼轴承在同一方向上可以转过的角度在60度～120度之间。考虑扭转阻尼轴承可以向两个方向转动，则扭转阻尼轴承可以转动的角度范围为120度-240度，可以满足目跟踪支架120度跟踪范围的要求。Preferably, the projection of the outer ring surface of the bearing
若换成四边形轴承内圈2，则每个第二腔体对应的角度为90度，轴承在同一方向上可以转过的角度在45度～90度之间，扭转阻尼轴承可以转动的角度范围为90度-180度之间，满足跟踪角度的要求。If it is replaced with a quadrilateral bearing
盖板7用于密封第一腔体外侧，轴承内圈2和轴承外圈1均与盖板7壁面密封连接。具体的，盖板7为两个，盖板7可以为圆环形密封板，安装于轴承外圈1的两侧，圆环的两端为密封设计，此时盖板7为一个整体结构，能在轴承内圈2与轴承本体3转动的过程中对每个第二腔体进行密封，保证流体不外漏。The
弹性活动组件4与盖板7密封贴合，其中弹性活动组件4由弹性材料制成。The elastic
具体的，可以轴承外圈1的内圈面与弹性活动组件4滑动连接，轴承外圈1内圈面相对两侧设有供弹性活动组件4往复滑动的滑道，具体的，如图2所示，弹性活动组件4端部设有限位凸起，轴承外圈1的内圈面形成容置限位凸起的滑道。Specifically, the inner ring surface of the bearing
为了使弹性活动组件4在预设范围内滑动，轴承外圈1的内圈面设有容置弹性活动组件4，且限制弹性活动组件4滑动行程的限位槽1-1，弹性活动组件4与限位槽1-1的槽底滑动密封连接，具体的，限位槽1-1的长度为弹性活动组件4的行程，限位槽1-1的相对两侧形成滑道。In order to make the elastic
流体密封填充在第二腔体内。具体的，流体可以为压缩气体或液体，具体可以为粘性液体。除弹性活动组件4外还可以通过设计结构件在第二腔体内与流体相互作用，产生阻尼力。A fluid-tight filling is within the second cavity. Specifically, the fluid may be a compressed gas or a liquid, and may specifically be a viscous liquid. In addition to the elastic
如图7所示，具体的，弹性活动组件4将第二腔体阻隔为至少两个分隔腔体12，沿轴承内圈2转动的方向依次排布。As shown in FIG. 7 , specifically, the elastic
在轴承内圈2转动过程中，轴承内圈2在转动过程中会不断改变弹性活动组件4所在平面的高度，使弹性活动组件4发生弹性形变，改变与轴承内圈2的贴合状态，弹性活动组件4在摩擦力作用下沿转动方向滑动，弹性活动组件4一侧的分隔腔体12体积变小，另一侧分隔腔体12体积变大，流体通过弹性活动组件4与轴承内圈2或轴承外圈1的抵接面通过弹性活动组件4形变形成间隙，流体由体积变小的一个分隔腔体12缓慢流动进入体积变大的另一个分隔腔体12。During the rotation process of the bearing
本申请弹性活动组件4阻碍粘性流体在两个分隔腔体12之间流动的能力，从而调节产生阻尼力的大小，弹性活动组件4与流体、轴承内圈2的相互作用使扭转阻尼轴承6产生一定的阻尼力。The elastic
当转动梁5在电机的带动下缓慢转动时，弹性活动组件4与流体、轴承内圈2的相互作用较为缓慢，轴承产生阻尼力较小，不影响转动梁5的正常转动。When the
当转动梁5受风荷载作用而发生瞬时的大角度扭转时，弹性活动组件4与流体、轴承内圈2的相互作用较快，轴承产生阻尼力较大，能有效抑制转动梁5的扭转振动，提高光伏跟踪支架上跟踪器的抗风能力和稳定性。When the
具体的，轴承本体3具体可以为塑料轴承，安装于轴承内圈2中，用于连接转动梁5。Specifically, the bearing
如图8和图9所示，为了便于轴承本体3转动，优选，轴承外圈1的内圈面为圆环形表面。As shown in FIGS. 8 and 9 , in order to facilitate the rotation of the bearing
如图10和图11所示，具体的，轴承内圈2的外圈面沿轴承内圈2轴向方向投影为勒洛三角形。如图10和图11所示，轴承内圈2的中心与轴承外圈1的中心重合。轴承内圈2的顶点将轴承外圈1分割出多个相互独立且密封的第二腔体，在每个第二腔体内部灌注粘性流体或压缩空气。As shown in FIG. 10 and FIG. 11 , specifically, the projection of the outer ring surface of the bearing
为了提高第二腔体的密封性，优选，接触位2-1为与轴承外圈1贴合的圆弧形表面。In order to improve the sealing performance of the second cavity, preferably, the contact position 2-1 is an arc-shaped surface that fits with the bearing
本申请提供的扭转阻尼轴承6，将阻尼器集成于轴承中。在转动梁5发生大幅振动时提供有效且均匀的扭转阻尼，提高跟踪器的稳定性与抗风能力。同时，本申请省略部分连接件，提高安装便捷性与安装效率，降低系统综合成本。The torsional damping
如图14所示，本申请提供的一种光伏跟踪支架包括转动梁5及安装在转动梁5上的扭转阻尼轴承6，其中扭转阻尼轴承6为上述任一种扭转阻尼轴承6。前文叙述了关于扭转阻尼轴承6的具体结构，本申请包括上述扭转阻尼轴承6，同样具有上述技术效果。As shown in FIG. 14 , a photovoltaic tracking bracket provided by the present application includes a
本申请提供的一种光伏系统，包括光伏跟踪支架及安装在光伏跟踪支架上的光伏组件11，光伏跟踪支架5上述任一种光伏跟踪支架，其中光伏跟踪支架上光伏组件11的数量根据实际需要而定。前文叙述了关于光伏跟踪支架的具体结构，本申请包括上述光伏跟踪支架，同样具有上述技术效果。A photovoltaic system provided by this application includes a photovoltaic tracking bracket and a
如图15所示，扭转阻尼轴承6通过螺栓固接于立柱上连接件9；立柱上连接件9通过螺栓连接固接于支撑立柱10，具体的，立柱可以为标准立柱。檩条8通过螺栓连接固接于转动梁5，间隔设置；光伏组件11通过螺栓连接固接于檩条8。转动主梁5穿过扭转阻尼轴承6中部的开孔，转动梁5可以在驱动系统(不限于推杆，减速机等)的带动下绕轴线转动，转动时可以带动扭转阻尼轴承6内轴承内圈2转动。转动梁5的截面形状不限于三角形，圆形，正方形，矩形，矩形圆角，六角形，八角形等，且需要与扭转阻尼轴承6中部开孔的形状相对应。As shown in FIG. 15 , the
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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