CN102411373B - Single axis tracking device for photovoltaic power generation - Google Patents
Single axis tracking device for photovoltaic power generation Download PDFInfo
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- CN102411373B CN102411373B CN 201110401563 CN201110401563A CN102411373B CN 102411373 B CN102411373 B CN 102411373B CN 201110401563 CN201110401563 CN 201110401563 CN 201110401563 A CN201110401563 A CN 201110401563A CN 102411373 B CN102411373 B CN 102411373B
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Abstract
The invention aims to provide a single axis tracking device for photovoltaic power generation. The single axis tracking device for photovoltaic power generation comprises a power generation unit, a driving device and a transmission mechanism, wherein the power generation unit comprises a carrier mounting a photovoltaic assembly and a bracket for supporting the carrier, and the carrier rotates along the directions of west and east on the bracket; the transmission mechanism comprises a driving wheel, a driven wheel, a pulley and a driving rope, wherein the driving rope is used for winding the driving wheel and the pulley and is connected at two different parts along circumferential direction of the driven wheel, so as to enable the driving rope to transmit between the driving wheel and the driven wheel; and the driven wheel is arranged on the carrier of the power generation unit and can drive the carrier of the power generation unit.
Description
Technical field
The present invention relates to solar energy tracking device.
Background technology
US Patent No. 6058930 discloses a kind of push-down tracking means and has had the torque tube at least one north-south, the support solar plate array, wherein at least one is supported on ground bearing and has the pivot connecting element that joins with the torque tube axle journal, drive unit has body part, be installed on the leg, connecting rod with the toggle on the torque tube of being couple to, torque tube is divided into two sections or above formation, one section one section end that is molded into next section wherein, with wringing fit, driver can be used for driving many row's solar panels.The driving of such push-down tracking means has the dead angle, therefore the maximum tracking rotary system of being limited in scope.
Summary of the invention
The object of the present invention is to provide a kind of single shaft tracking apparatus for photovoltaic generation.
For realizing the single shaft tracking apparatus that is used for photovoltaic generation of described purpose, be characterized in, comprise generator unit, drive unit and gear train, wherein, generator unit comprises that carriage rotates along east-west direction for the carriage of installation photovoltaic component and the support of Support bracket on support; Gear train comprises driving wheel, engaged wheel, pulley and driving rope, drives rope and twines driving wheel and pulley, and be connected to two circumferential different parts of engaged wheel, can carry out transmission so that drive rope between driving wheel and engaged wheel; This engaged wheel is installed on the carriage of generator unit, and can drive the carriage of this generator unit.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are, a plurality of generator units are at the east-west direction arrangement in a row, each generator unit also comprises swing arm, swing arm is installed on the carriage, can drive carriage, and the swing arm of each generator unit is parallel, connected by connecting rod between the swing arm, this engaged wheel is installed on the carriage of a bill unit of this generator unit.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are that engaged wheel is non-complete circle, is installed in the downside of carriage.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are, carriage comprises girder and a plurality of purlin, girder extends in the plane of North and South direction, purlin is fixed on the girder, and the downside of girder is provided with the rotating shaft that interts in bearing, and this bearing is rack-mount, be provided at isolated at least two place's fulcrums in the plane of North and South direction so that support is girder, the carriage of girder both sides and on load centered by girder, balance each other.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are that described connecting rod comprises master connecting-rod and the connecting rod end plate, the web joint that arrange at least one end of master connecting-rod; On the connecting rod end plate, be provided with two row's connecting holes along the identical starting point of the length direction of connecting rod, the spacing of each row's connecting hole is one apart from three times of a; On web joint, be provided with two row's connecting holes along two different starting points of the length direction of connecting rod, two different starting points have spacing a at the length direction of connecting rod, and the spacing of respectively arranging connecting hole is the twice apart from a; The connecting hole of the web joint of the connecting hole of connecting rod end plate and correspondence is inserted with web member, so that the connecting rod end plate is connected with web joint.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics be, driving wheel is sprocket wheel, and driving in the rope can be chain with the part of sprocket engagement, and remainder is rope or belt.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are that driving wheel is reel, drives rope and is wire rope.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics be, the photovoltaic module on the carriage is ± 75 ° in the maximum tracking rotary scope of East and West direction, namely eastwards 75 ° to westwards 75 °.
Described single shaft tracking apparatus for photovoltaic generation, its further characteristics are to be oblique single shaft tracking apparatus or horizontal single shaft tracking apparatus.
Drive driving wheel by accessory drive and carry out forward and reverse rotation, and spur the engaged wheel that is fixed on the carriage and carry out forward and reverse rotation by driving rope and pulley, and then drive carriage and top photovoltaic module carries out the East and West direction tracking rotary.Simultaneously, by being installed in swing arm and the connecting rod on the girder, can realizing one of an engaged wheel drive and carry out the East and West direction tracking rotary with bracket, thereby realize how group photovoltaic module clusterings were followed the tracks of day.
The driving wheel diameter can further strengthen the driving reduction gear ratio much smaller than engaged wheel, and therefore, identical drive motor can drive larger load.The rotation following range is large, compares with the push-down tracking means, does not drive the dead angle.Photovoltaic module on the carriage is ± 75 ° in transmeridional maximum tracking rotary scope.
Description of drawings
Fig. 1 is the front view along the axial single shaft tracking apparatus of thing.
Fig. 2 be along A-A among Fig. 1 to cut-open view, wherein photovoltaic module has been rotated an angle.
Fig. 3 is the synoptic diagram of drive unit.
Fig. 4 is the synoptic diagram of another embodiment of drive unit.
Fig. 5 is the partial enlarged view at I place among Fig. 1.
Fig. 6 be among Fig. 5 B-B to cut-open view.
Fig. 7 is the partial enlarged view at II place among Fig. 2.
Fig. 8 be among Fig. 7 C-C to cut-open view.
Fig. 9 is the front view of an embodiment of bearing.
Figure 10 is the front view of another embodiment of bearing.
Figure 11 is the again front view of an embodiment of bearing.
Figure 12 is the front view of telescopic rod.
Figure 13 is the vertical view of telescopic rod.
Figure 14 is the decomposition view of telescopic rod.
Figure 15 is the synoptic diagram that the single shaft tracking apparatus of weight linear meter is installed on the carriage.
Embodiment
Fig. 1 is the view of the projection carried out on the plane of North and South direction.Fig. 2 is the view of the projection carried out on the plane of east-west direction.For the ease of observing, position shown in Figure 2 is with respect to position shown in Figure 1, and girder rotates.
As depicted in figs. 1 and 2, in one embodiment of the invention, single shaft tracking apparatus comprises a plurality of generator units 2, and it is at the east-west direction arrangement in a row.Each generator unit 2 comprises carriage 10, support 14,15 and photovoltaic module 11.Carriage 10 comprises girder 13 and many purlins 12, and girder 13 extends in the plane of North and South direction, correspondingly is connected with many purlins 12 that extend at girder 13 in the east-west direction plane, and at least one photovoltaic module 11 is installed on the carriage 10.
Simultaneously with reference to Fig. 1 and Fig. 5, Fig. 6, support 15 is supported by basis, ground (perhaps it is equal to the basis), and the upper end of support 15 is equipped with bearing 171, and bearing 171 is supporting rotating shaft 161, rotating shaft 161 can freely be rotated in that bearing 171 is interior, and an end of girder 13 is supported by rotating shaft 161.
Refer again to Fig. 1 and Fig. 7, Fig. 8, two stands 14 is supported by basis, ground (perhaps it is equal to the basis), the upper end of each support 14 is equipped with bearing 172, bearing 172 is supporting rotating shaft 162, rotating shaft 162 can freely be rotated in that bearing 172 is interior, and the other end of girder 13 is supported by the rotating shaft 162 that the bearing 172 on the two stands 14 is supporting.
As shown in Figure 8, the projection of two stands 14 in the east-west direction plane intersects, and as shown in Figure 7, the projection of two stands 14 in the North and South direction plane is isolated.
With reference to Fig. 6 and Fig. 8 and Fig. 9, rotating shaft 161,162 is installed on the downside of girder 13 simultaneously, and the advantage of this structure is: (1) rotating shaft 161,162 diameters are less, and the spin friction resistance is little, and economical with materials; (2) adjust the distance beta value at the center of girder 13 and rotating shaft 161,162 center, or the balancing weight 191 (as shown in figure 15) that increases counter weight device 19 comes balance rotating shaft 161, the counterbalance moment of both sides about in the of 162, to reach the purpose that is conducive to the driven bracket tracking rotary most.
Extremely shown in Figure 11 such as Fig. 9, bearing 162,172 can be at the hole of bearing shaft liner self-lubricating material 18, also liner self-lubricating material 18 not, self-lubricating material 18 is cylindrical shell, self-lubricating material 18 rivetings are in the endoporus of bearing 162 or 172 among the embodiment as shown in Figure 9, embodiment as shown in figure 10, self-lubricating material 18 is a tight fit in the endoporus of bearing 162 or 172.
With reference to Fig. 5, Fig. 6, Fig. 7 and Fig. 8, each bearing 171,172 is connected on the corresponding support 15,14 by the securing member of can threading off simultaneously, and the securing member of can threading off for example is bolt, nut assembly.Loosening fasteners just can be adjusted the relatively corresponding support 15 of bearing 171,172,14 angle, to guarantee rotating shaft 161,162 on same axis or parallel.
As depicted in figs. 1 and 2, in one embodiment of the invention, single shaft tracking apparatus also comprises drive unit 21 and gear train.This gear train comprises driving wheel 22, drives rope 23, pulley 24 and engaged wheel 25.
Engaged wheel 25 is semicircle wheel, comprises arc-shaped edges 251 and a plurality of rib 252, and an end of rib 252 connects wheel hub, and an end connects arc-shaped edges 251, and rib 252 extends radially from wheel hub.
As shown in Figure 3, the first end 231 that drives rope 23 is connected to the first connecting portion 251a of the arc-shaped edges 251 of engaged wheel 25, and the second end 232 is connected to the second connecting portion 251b of the arc-shaped edges 251 of engaged wheel 25.The first connecting portion 251a and the second connecting portion 251b are circumferentially spaced apart engaged wheel 25.The first end 231 and the rope between the second end 232 that drive rope 23 twine driving wheel 22 and pulley 24, can carry out transmission between driving wheel 22 and engaged wheel 25 so that drive rope 23.Pulley 24 (idle pulley) mainly plays the effect of guiding.
As shown in Figure 3, driving wheel 22 can be sprocket wheel 22A, and correspondingly, driving rope 23 need to be chain 230 with the part of driving wheel 22 engagements, and remainder can be wire rope 231.
As shown in Figure 4, when driving wheel 22 is reel, drives rope 23 and can adopt wire rope or other ropes or band.Driving wheel 22 also can be belt pulley.Rope comprises band.
The wheel hub of engaged wheel 25 is the carriage 10 of a generator unit 2, as shown in Figure 2, is the girder 13 of carriage 10.Engaged wheel 25 and girder 13 be for being fixedly connected with, so engaged wheel 25 is when connecting, and girder 13 will rotate around its rotating shaft.Photovoltaic module 11 rotates with carriage 10.Therefore drive unit 21 rotatings will drive photovoltaic module 11 and rotate at east-west direction, to follow the tracks of sunshine, in one embodiment of this invention, photovoltaic module 11 on the carriage 10 in transmeridional maximum tracking rotary scope at (namely eastwards 75 ° to westwards 75 °) more than ± 75 °, therefore it is large to rotate following range, and compare with the push-down tracking means, do not drive the dead angle.
As shown in Figure 1, the girder 13 of carriage 10 is more than or equal to 0 ° with less than 90 ° with the angle α scope of surface level.When α=0 °, embodiments of the invention are horizontal single shaft tracking apparatus; When α＞0 °, embodiments of the invention are oblique single shaft tracking apparatus.Girder 13 or carriage 10 provide fulcrum at two places by support at least.
Each generator unit 2 also comprises swing arm 31, and swing arm 31 is connected to the downside of girder 13, and in abutting connection with the swing arm 31 of generator unit 2 of engaged wheel 25 also in abutting connection with this engaged wheel 25.
Connect by connecting rod 41 between the swing arm 31, the swing arm 31 of each generator unit 2 is parallel to each other, as long as therefore there is a swing arm 31 to swing, just can reach the effect that other swing arms 31 swing, thereby reaches the effect of generator unit 2 interlocks of embarking on journey.
To shown in Figure 14, connecting rod 41 comprises master connecting-rod 412 and the connecting rod end plate 411, the web joint 410 that arrange in master connecting-rod 412 at least one ends such as Figure 12.
On the connecting rod end plate 411, being provided with two row's connecting hole 411a along the identical starting point of the length direction of connecting rod 41, is 3a with the spacing of row's connecting hole 411a; I connecting hole 411a of first row is connected i+1 connecting hole 411a and participated in the connection of being connected with web joint with second row, i is natural number, and in embodiment as shown in figure 15, i is 1, but in other embodiments, i can be 2 or the natural number of other realistic demands.
Aforementioned first row and second row are only named for the differentiation in statement, and without the restriction effect on the physics implication, the arbitrary row among the row of two on the connecting rod end plate 411 among Fig. 8 can be first row or second row.
On the web joint 410, being provided with two row's connecting holes along two different starting points of the length direction of connecting rod 41, is 2a with the spacing of row's connecting hole 410a; The spacing of two different starting points on the length direction of connecting rod 41 is a.J connecting hole 410a of first row is connected j+1 connecting hole 410a and participated in and connection on the connecting rod end plate is connected with second row, j is natural number, and in embodiment as shown in figure 15, j is 4, but in other embodiments, j can be 2 or the natural number of other realistic demands.
Row can be first row on the web joint 410, and lower row can be second row.Spacing between the row on spacing between the row on the connecting rod end plate 411 and the web joint 410 is identical.
Aforementioned i connecting hole connects by web member with j connecting hole, and aforementioned i+1 connecting hole connects by web member with j+1 connecting hole, and described web member connection for example is fixedly connected with for bolt.Simultaneously with reference to Figure 12 to Figure 14, be appreciated that integral multiple according to the step-length a web joint 410 that moves to left or move to right, and then be connected with connecting rod end plate 411, so the degree of regulation of the length of connecting rod 41 is a.
Certainly, if the lower row of web joint 410 is first row among Fig. 8, when upper row is second row, j connecting hole 410a of first row is connected j+2 connecting hole 410a and participated in and connection on the connecting rod end plate is connected with second row, j is natural number, and aforementioned i+1 connecting hole connects by web member with j+2 connecting hole.
The scalable architecture of aforementioned connecting rod 41 not only is limited in as shown in drawings on the connecting rod 41, can also be used as support 15,14, so that support 15,14 length can be regulated, and have higher degree of regulation.
Such as Figure 12 to the embodiment shown in Figure 14, connecting rod end plate 411 is fixed on the end of master connecting-rod 412, be fixedly connected with two bolts with the connecting hole on the diagonal angle with connecting rod end plate 411 between connecting rod end plate 411 and the web joint 410, stretching between connecting rod end plate 411 and the web joint 410 can a be that step-length is regulated, the advantage of this structure is to make step-length flexible between connecting rod end plate 411 and the web joint 410 short as far as possible, and then improves the degree of regulation of connecting rod 411 collapsing lengths.
Such as Fig. 2, Fig. 3 and shown in Figure 4, driving wheel 22a, 22 and pulley 24 can adopt as required horizontally disposed or be arranged vertically.
The principle of work of the single shaft tracking apparatus in the previous embodiment is: drive driving wheel 22 by accessory drive 21 and just carrying out or reverse rotation, and spur the engaged wheel 25 that is fixed on the girder 13 and just carrying out or reverse rotation by driving rope 23 and pulley 24, and then drive carriage 10 and above photovoltaic module 11 carry out the East and West direction tracking rotary.Simultaneously, by being installed in the swing arm 31 and the connecting rod 41 that is connected swing arm 31 on the girder 13, can realize that 25 one of the drive of an engaged wheel and above generator unit 2 carry out the East and West direction tracking rotary, thereby realize how group photovoltaic module clusterings were followed the tracks of day.
Claims (9)
1. the single shaft tracking apparatus that is used for photovoltaic generation, it is characterized in that, comprise generator unit, drive unit and gear train, wherein, generator unit comprises that carriage can rotate along east-west direction for the carriage of installation photovoltaic component and the support of Support bracket on support; Gear train comprises driving wheel, engaged wheel, pulley and driving rope, the first end that drives rope is connected to the first connecting portion of the arc-shaped edges of engaged wheel, the second end is connected to the second connecting portion of this arc-shaped edges of engaged wheel, the first connecting portion and the second connecting portion are circumferentially spaced apart engaged wheel, the first end and the rope between the second end that drive rope twine driving wheel and pulley, can carry out transmission so that drive rope between driving wheel and engaged wheel; This engaged wheel is installed on the carriage of generator unit, and can drive the carriage of this generator unit.
2. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1, it is characterized in that, a plurality of generator units are at the east-west direction arrangement in a row, each generator unit also comprises swing arm, swing arm is installed on the carriage, can drive carriage, and the swing arm of each generator unit is parallel, connected by connecting rod between the swing arm, this engaged wheel is installed on the carriage of a generator unit of these a plurality of generator units.
3. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1 is characterized in that, engaged wheel is non-complete circle, is installed in the downside of carriage.
4. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1, it is characterized in that, carriage comprises girder and a plurality of purlin, girder extends in the plane of North and South direction, purlin is fixed on the girder, and the downside of girder is provided with the rotating shaft that interts in bearing, and this bearing is rack-mount, be provided at isolated at least two place's fulcrums in the plane of North and South direction so that support is girder, the carriage of girder both sides and on load centered by girder, balance each other.
5. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 2 is characterized in that, described connecting rod comprises master connecting-rod and the connecting rod end plate, the web joint that arrange at least one end of master connecting-rod; On the connecting rod end plate, be provided with two row's connecting holes along the identical starting point of the length direction of connecting rod, the spacing of each row's connecting hole is one apart from three times of a; On web joint, be provided with two row's connecting holes along two different starting points of the length direction of connecting rod, two different starting points have spacing a at the length direction of connecting rod, and the spacing of respectively arranging connecting hole is the twice apart from a; The connecting hole of the web joint of the connecting hole of connecting rod end plate and correspondence is inserted with web member, so that the connecting rod end plate is connected with web joint.
6. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1 is characterized in that, driving wheel is sprocket wheel, and driving in the rope can be chain with the part of sprocket engagement, and remainder is rope or belt.
7. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1 is characterized in that, driving wheel is reel, drives rope and is wire rope.
8. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1 is characterized in that, the photovoltaic module on the carriage is ± 75 ° in the maximum tracking rotary scope of East and West direction, namely eastwards 75 ° to westwards 75 °.
9. the single shaft tracking apparatus for photovoltaic generation as claimed in claim 1 is characterized in that, is oblique single shaft tracking apparatus or horizontal single shaft tracking apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401563 CN102411373B (en) | 2011-12-06 | 2011-12-06 | Single axis tracking device for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401563 CN102411373B (en) | 2011-12-06 | 2011-12-06 | Single axis tracking device for photovoltaic power generation |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101693332A Division CN103235601A (en) | 2011-12-06 | 2011-12-06 | Single-shaft tracking device for photovoltaic power generation |
| CN201310169387.9A Division CN103279133B (en) | 2011-12-06 | 2011-12-06 | Single-shaft tracking mechanism for photovoltaic power generation |
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| CN102411373A CN102411373A (en) | 2012-04-11 |
| CN102411373B true CN102411373B (en) | 2013-04-24 |
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| CN 201110401563 Active CN102411373B (en) | 2011-12-06 | 2011-12-06 | Single axis tracking device for photovoltaic power generation |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739112A (en) * | 2012-06-27 | 2012-10-17 | 成都瑞迪机械实业有限公司 | Novel solar power generation tracing driving device |
| CN103309358A (en) * | 2013-06-28 | 2013-09-18 | 上海摩昆新能源科技有限公司 | Vertical axis tracking device for solar power generation |
| CN103279137A (en) * | 2013-06-28 | 2013-09-04 | 上海摩昆新能源科技有限公司 | Transmission mechanism and single-shaft tracking device for solar cells |
| CN104731110A (en) * | 2015-01-23 | 2015-06-24 | 北京雷蒙赛博机电技术有限公司 | Linear double coiling block rope driving device used for photovoltaic tracking support |
| CN104808697A (en) * | 2015-03-09 | 2015-07-29 | 北京雷蒙赛博机电技术有限公司 | Cable connection mode for driving multiple tracking supports by one driving device |
| CN104808700A (en) * | 2015-04-23 | 2015-07-29 | 北京雷蒙赛博机电技术有限公司 | Interactive pre-tightening mechanism of traction cable rope of cable rope driven photovoltaic tracking bracket |
| CN105162405B (en) * | 2015-06-29 | 2018-10-26 | 广东美的暖通设备有限公司 | One kind rotating solar control system from motion tracking and bidimensional |
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| US6058930A (en) * | 1999-04-21 | 2000-05-09 | Shingleton; Jefferson | Solar collector and tracker arrangement |
| CN101567399A (en) * | 2009-06-11 | 2009-10-28 | 张晋 | General three-dimensional automatic tracking device of photovoltaic battery panel |
| CN201479045U (en) * | 2009-08-06 | 2010-05-19 | 王贵录 | Sunward horizontal-shaft single-shaft tracking system in east-west direction |
| CN202433778U (en) * | 2011-12-06 | 2012-09-12 | 上海摩昆新能源科技有限公司 | Homotaxial tracker for photovoltaic power generation |
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2011
- 2011-12-06 CN CN 201110401563 patent/CN102411373B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058930A (en) * | 1999-04-21 | 2000-05-09 | Shingleton; Jefferson | Solar collector and tracker arrangement |
| CN101567399A (en) * | 2009-06-11 | 2009-10-28 | 张晋 | General three-dimensional automatic tracking device of photovoltaic battery panel |
| CN201479045U (en) * | 2009-08-06 | 2010-05-19 | 王贵录 | Sunward horizontal-shaft single-shaft tracking system in east-west direction |
| CN202433778U (en) * | 2011-12-06 | 2012-09-12 | 上海摩昆新能源科技有限公司 | Homotaxial tracker for photovoltaic power generation |
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Address after: 201406, room 8, building 628, 170 Yang Yang Road, Shanghai, Fengxian District Patentee after: Shanghai Mokun New Energy Technology Co., Ltd. Address before: 201102 Shanghai Minhang District Gumei road 675 Lane 22, room 1301 Patentee before: Shanghai Mokun New Energy Technology Co., Ltd. |