CN106774455B - Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission - Google Patents
Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission Download PDFInfo
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- CN106774455B CN106774455B CN201710035915.XA CN201710035915A CN106774455B CN 106774455 B CN106774455 B CN 106774455B CN 201710035915 A CN201710035915 A CN 201710035915A CN 106774455 B CN106774455 B CN 106774455B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims description 54
- 239000003638 chemical reducing agent Substances 0.000 claims description 38
- 230000033001 locomotion Effects 0.000 description 10
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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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
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a single-axis/double-axis solar tracking device based on crankshaft connecting rod transmission, wherein the single-axis tracking device only tracks the azimuth angle of the sun, and the double-axis device simultaneously tracks the azimuth angle and the altitude angle of the sun. The single-axis solar tracking device is formed by sequentially arranging and connecting a plurality of single-axis tracking units, and the double-axis solar tracking device is formed by arranging and connecting a plurality of double-axis tracking units in a rectangular array; the adjacent single-shaft solar tracking devices and the double-shaft solar tracking devices are driven by a crankshaft connecting rod, and the power sources are only one; the invention has the outstanding characteristics of simple structure, strong terrain adaptability, double-shaft tracking realized by single drive, no overstroke risk, high cost performance and the like.
Description
Technical Field
The invention relates to a solar tracking device, in particular to a single-shaft/double-shaft solar tracking device based on crankshaft and connecting rod transmission.
Background
The existing solar single-axis tracking device can be generally installed on a flat site, and the serial connection direction of each tracking unit is required to be on the east-west axis, so that the application range is limited or the construction cost is increased; the existing solar double-shaft tracking device adopts two sets of driving devices to respectively drive the tracking of the altitude angle and the azimuth angle, and each tracking unit independently works, so that the cost is greatly increased.
Disclosure of Invention
In order to overcome the defects, the invention provides a single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission.
The technical scheme adopted for solving the technical problems is as follows: a single-shaft solar tracking device based on crankshaft and connecting rod transmission is formed by sequentially arranging and connecting a plurality of single-shaft tracking units, wherein each single-shaft tracking unit comprises a stand column, a first crankshaft is hinged to the stand column, a first worm gear reducer and a driving mechanism are installed on one single-shaft tracking unit, the driving mechanism drives the first worm gear reducer, the output end of the first worm gear reducer is fixedly connected with the first crankshaft coaxially, the first crankshafts of two adjacent single-shaft tracking units are connected through connecting rods, a component support frame is hinged to the stand column in a spherical mode, a hinge point is a, the component support frame is connected with the first crankshaft through a first crank connecting rod mechanism, and a photovoltaic component is fixed on the component support frame.
Further, the first crank link mechanism comprises a chain wheel, a roller chain disc and a transmission rod, the chain wheel is fixedly connected with the first crankshaft in a coaxial mode, the roller chain disc is hinged to the upright post, the hinge point is b, one end of the transmission rod is hinged to the roller chain disc ball, the hinge point is c, the other end of the transmission rod is hinged to the component supporting frame ball, the hinge point is d, and the chain wheel is meshed with the roller chain disc for transmission.
Further, the distance L1 between the hinge points bc is smaller than the distance L2 between the hinge points ad.
The invention further aims at providing a double-shaft solar tracking device based on crankshaft connecting rod transmission, which is characterized by being formed by arranging and connecting a plurality of double-shaft tracking units in a rectangular array, wherein each double-shaft tracking unit comprises a stand column, a first crankshaft is hinged to the stand column, a first worm gear reducer is installed on all double-shaft tracking units on one of the north-south columns, the output end of the first worm gear reducer is fixedly connected with the first crankshaft in a coaxial manner, the first crankshaft is fixedly connected with a second crankshaft in a coaxial manner, the input end of the first worm gear reducer is fixedly connected with a third crankshaft in a coaxial manner, a driving mechanism is installed on one double-shaft tracking unit on the north-south column, the driving mechanism drives the first worm gear reducer, and the third crankshafts of two adjacent double-shaft tracking units on the south-north column are connected through connecting rods; the first crankshafts of two adjacent double-shaft tracking units on the east-west column are connected through a connecting rod; the device comprises an upright post, a rotating support frame, a first crank connecting rod mechanism, a fourth crank and a component support frame, wherein the upright post is hinged with the rotating support frame, the hinge point of the rotating support frame is i, the rotating support frame is connected with the first crank through the first crank connecting rod mechanism, the hinge point of the component support frame is e, the fourth crank is connected with the component support frame through the second crank connecting rod mechanism, the fourth crank is connected with the second crank through a connecting rod, and a photovoltaic component is fixed on the component support frame.
Further, the first crank connecting rod mechanism and the second crank connecting rod mechanism have the same structure and comprise a chain wheel, a roller chain disc and a transmission rod; when the rotary support frame is connected with a first crankshaft through a first crank connecting rod mechanism, the chain wheel is fixedly connected with the first crankshaft in a coaxial way, the roller chain disc is hinged on the upright post, the hinge point is j, one end of the transmission rod is hinged with the roller chain disc ball, the hinge point is k, the other end of the transmission rod is hinged with the rotary support frame ball, the hinge point is l, and the chain wheel is meshed with the roller chain disc for transmission; when the fourth crankshaft is connected with the assembly support frame through the second crank connecting rod mechanism, a commutator is connected between the fourth crankshaft and the second crank connecting rod mechanism, the commutator comprises a driving bevel gear and a driven bevel gear, the driven bevel gear is hinged on the rotary support frame, the driving bevel gear is coaxially and fixedly connected with the fourth crankshaft, the driven bevel gear is coaxially and fixedly connected with the sprocket, the roller chain disc is hinged on the rotary support frame, the hinge point is f, one end of the transmission rod is hinged with the roller chain disc ball, the hinge point is g, the other end of the transmission rod is hinged with the assembly support frame ball, the hinge point is h, and the sprocket is meshed with the roller chain disc for transmission.
Further, the distance L3 between the hinge points fg is smaller than the distance L4 between the hinge points he; the distance L5 between the hinge points jk is smaller than the distance L6 between the hinge points ie.
Further, the fourth crankshaft is connected with the second crankshaft through a connecting rod, and the transmission ratio of the fourth crankshaft is 1; in the first crank mechanism, the transmission ratio of the sprocket and the roller chain disk is i1, and in the second crank mechanism, the transmission ratio of the sprocket and the roller chain disk is i2, and the ratio of i1 to i2 is 1:2.
Further, the driving mechanism comprises a motor and a second worm gear reducer, and the motor drives the second worm gear reducer to rotate.
Further, the roller chain plate comprises a disc, rollers and rivets, wherein the rollers are evenly hinged on the circumference of the disc through the rivets.
Further, the connecting rod comprises two rod end joint bearings, two studs and a threaded sleeve, wherein the two studs are connected through the threaded sleeve, and the outer end part of each stud is connected with one rod end joint bearing.
The beneficial effects of the invention are as follows: the solar single-axis tracking device is formed by linking a plurality of tracking units, can drive all the tracking units to track the azimuth angle of the sun by adopting one set of driving device, has strong terrain adaptability, can be normally installed on sites with uneven and irregular boundaries, and has low installation cost and wide application range; the solar double-shaft tracking device consists of a plurality of rectangular arrays of tracking units in a linked mode, and can drive all the tracking units to track the sun altitude angle and the sun azimuth angle simultaneously by adopting one set of driving device, so that the production and installation cost is low.
Drawings
FIG. 1 is a schematic overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a single axis tracking unit according to embodiment 1 of the present invention;
FIG. 3 is an exploded view of the mounting of the component support frame of embodiment 1 of the present invention on a column;
FIG. 4 is a schematic view showing the assembly of the component support frame of embodiment 1 of the present invention on a column;
FIG. 5 is a schematic view of an installation of a roller chain wheel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the azimuth angle of the sun tracking according to embodiment 1 of the present invention;
FIG. 7 is a schematic view of the roller chain wheel meshing with a sprocket of embodiment 1 of the present invention;
FIG. 8 is a schematic view of a connecting rod structure according to an embodiment of the present invention;
FIG. 9 is a schematic overall structure of embodiment 2 of the present invention;
FIG. 10 is a schematic diagram of a dual-axis tracking unit according to embodiment 2 of the present invention;
FIG. 11 is a schematic view showing a structure of engagement between a roller chain wheel and a sprocket in accordance with embodiment 2 of the present invention;
fig. 12 is a schematic view of the commutator in embodiment 2 of the present invention;
FIG. 13 is a schematic view of the altitude of the sun tracking according to embodiment 2 of the present invention;
FIG. 14 is a schematic view of tracking sun azimuth angle in accordance with embodiment 2 of the present invention;
in the figure: the photovoltaic power generation device comprises a column 1, a first crankshaft 2, a first worm gear reducer 3, a driving mechanism 4, a connecting rod 5, a component support frame 6, a first crank-connecting rod mechanism 7, a photovoltaic component 8, a third crankshaft 9, a rotary support frame 10, a second crankshaft 11, a second crank-connecting rod mechanism 12, a commutator 13, a bolt 14, a first retainer ring 15, a joint bearing 16, a second retainer ring 17, a flat washer 18, a spring washer 19, a nut 20, a bearing fixing plate 21, a fourth crankshaft 22, a drive bevel gear 131, a driven bevel gear 132, a motor 401, a second worm gear reducer 402, a rod end joint bearing 501, a stud 502, a threaded sleeve 503, a sprocket 701, a roller chain 702, a transmission rod 703, a disc 7021, a roller 7022, a rivet 7023 and a third crankshaft 901.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1:
as shown in fig. 1-2, a single-axis solar tracking device based on crank shaft and connecting rod transmission is formed by sequentially arranging and connecting a plurality of single-axis tracking units for executing sun azimuth angle tracking work, wherein each single-axis tracking unit comprises a stand column 1, a first crank shaft 2 is hinged to the stand column 1, a first worm gear reducer 3 and a driving mechanism 4 are installed on one single-axis tracking unit, the driving mechanism 4 drives the first worm gear reducer 3, the first worm gear reducer 3 is connected with the first crank shaft 2 and drives the first crank shaft 2 to rotate, the driving mechanism 4 comprises a motor 401 and a second worm gear reducer 402, the motor 401 drives the second worm gear reducer 402 to rotate, and the second worm gear reducer 402 is connected with the first worm gear reducer 3; the first crankshafts 2 of two adjacent single-shaft tracking units are connected through a connecting rod 5 to realize synchronous motion; the assembly support frame 6 is connected to the upright column 1 in a ball hinged mode, the hinge point is a, the assembly support frame 6 is connected with the first crankshaft 2 through the first crank-link mechanism 7, and the photovoltaic assembly 8 is fixed on the assembly support frame 6.
The driving mechanism 4 comprises a motor 401 and a second worm gear reducer 402, and the motor 401 drives the second worm gear reducer 402 to rotate.
As shown in fig. 3 and 4, the assembly support frame 6 is connected to the upright 1 through a bolt 14, a first retainer ring 15, a joint bearing 16, a second retainer ring 17, a flat washer 18, a spring washer 19, a nut 20 and a bearing fixing plate 21, the upright 1 is fixed, the bearing fixing plate 21 is fixedly mounted to the upright 1, the joint bearing 16 is fixedly mounted to the bearing fixing plate 21, and the bolt 14 sequentially passes through the first retainer ring 15, the joint bearing 16, the second retainer ring 17, the flat washer 18 and the spring washer 19 to be connected to the nut 20, so that the assembly support frame 6 is connected to the bearing fixing plate 21; at this time, the component support frame 6 can rotate with the knuckle bearing 16 as the axis. Based on the characteristic that the joint bearing has the aligning function, and the rod end joint bearing adopted at the joint of the two ends of the transmission rod 703 and the roller chain disk 702 and the component support frame 6 also has the characteristic of aligning function, the roller chain disk 702 can drive the component support frame 6 to form a certain included angle with the upright column 1 to rotate. The working principle is characterized in that two component supporting frames driven by two synchronously moving roller chain discs 702 can not rotate on the same axis, so that the capability of installing and using the tracking device on irregular terrains is improved.
As shown in fig. 7, the first crank-link mechanism 7 includes a sprocket 701, a roller chain disc 702 and a transmission rod 703, where the sprocket 701 is fixedly connected with the first crankshaft 2 coaxially, the roller chain disc 702 is hinged on the upright 1, the hinge point is b, one end of the transmission rod 703 is ball-hinged with the roller chain disc 702, the hinge point is c, the other end of the transmission rod 703 is ball-hinged with the assembly support frame 6, the hinge point is d, and the sprocket 701 is meshed with the roller chain disc 702 for transmission. The sprocket 701 is fixedly connected with the first crankshaft 2 coaxially, the sprocket 701 drives the roller chain disc 702 to rotate while the first crankshaft 2 rotates, and the roller chain disc 702 transmits motion to the component support frame 6 through the transmission rod 703, so that the photovoltaic component 8 fixed on the component support frame 6 is driven to track the sun azimuth angle.
As shown in fig. 5, the roller chain wheel 702 comprises a disc 7021, a roller 7022 and a rivet 7023, wherein the roller 7022 is uniformly hinged on the circumference of the disc 7021 through the rivet 7023; when the roller chain disc 702 drives the component support frame 6 to rotate through the transmission rod 703, a transmission pair of a crank connecting rod is formed, the distance L1 between hinge points bc is smaller than the distance L2 between hinge points ad, when the roller chain disc 702 rotates all the time, the component support frame 6 can swing in an alpha angle range, the size of alpha can be adjusted by adjusting the lengths of the L1, the L2 and the transmission rod 703, and the working principle is characterized in that the motor can track and reset the solar azimuth angle without forward and reverse rotation, and the situation that the tracking device is damaged due to the fact that the motor is out of control cannot occur, as shown in fig. 6.
The roller chain disc 702 is driven by a chain wheel 701 fixed on the first crankshaft 2, the first crankshafts 2 of each tracking unit realize synchronous motion through a connecting rod 5, the connecting rod 5 consists of two rod end joint bearings 501, two studs 502 and a threaded sleeve 503, the two studs 502 are connected through the threaded sleeve 503, the outer end part of each stud 502 is connected with one rod end joint bearing 501, and the axial center distance of the two rod end joint bearings 501 can be adjusted by adjusting the depth of screwing the stud 502 into the threaded sleeve 503, as shown in fig. 8. Based on the characteristic of the rod end joint bearing with the aligning function, the connecting rod 5 can form a certain included angle with the first crankshaft 2, and the synchronous motion of the crankshafts of the tracking units is not influenced. The working principle is characterized in that each tracking unit linked through the connecting rod can be arranged on an axis, so that the capability of the tracking device for being arranged and used on irregular terrains is improved.
Example 2:
as shown in fig. 9 and 10, a double-shaft solar tracking device based on crank shaft connecting rod transmission is formed by arranging and connecting a plurality of double-shaft tracking units for tracking the sun altitude and sun azimuth in a rectangular array, each double-shaft tracking unit comprises a vertical column 1, a first crank shaft 2 is hinged on the vertical column 1, a first worm gear reducer 3 is installed on all double-shaft tracking units on one north-south column, the output end of the first worm gear reducer 3 is fixedly connected with the first crank shaft 2 in a coaxial manner, a second crank shaft 11 is fixedly connected with the first crank shaft 2 in a coaxial manner, the input end of the first worm gear reducer 3 is fixedly connected with a third crank shaft 9 in a coaxial manner, a driving mechanism 4 is installed on one double-shaft tracking unit on the north-south column, the driving mechanism 4 drives the first worm gear reducer 3, and the third crank shafts 9 of two adjacent double-shaft tracking units on the south-north column are connected through a connecting rod 5 to realize synchronous movement, so that the first worm gear reducer 3 of the double-shaft tracking units on the north-south column can realize synchronous movement; the first crankshafts 2 of two adjacent double-shaft tracking units on the east-west row are connected through a connecting rod 5, so that synchronous motion of the row is realized; the upright column 1 is hinged with a rotary support frame 10, the hinge point is i, the rotary support frame 10 is connected with a first crankshaft 2 through a first crank connecting rod mechanism 7, the rotary support frame 10 is hinged with a fourth crankshaft 22 and a component support frame 6, the hinge point of the component support frame 6 is e, the fourth crankshaft 22 is connected with the component support frame 6 through a second crank connecting rod mechanism 12, the fourth crankshaft 22 and a second crankshaft 11 are connected through a connecting rod 5, synchronous movement is achieved, and a photovoltaic component 8 is fixed on the component support frame 6.
The driving mechanism 4 comprises a motor 401 and a second worm gear reducer 402, the motor 401 drives the second worm gear reducer 402 to rotate, and the second worm gear reducer 402 is connected with the first worm gear reducer 3.
The first crank link mechanism 7 and the second crank link mechanism 12 have the same structure and comprise a chain wheel 701, a roller chain disc 702 and a transmission rod 703; when the rotary support frame 10 is connected with the first crankshaft 2 through the first crank-link mechanism 7, the sprocket 701 is fixedly connected with the first crankshaft 2 in a coaxial way, the roller chain disc 702 is hinged on the upright 1, the hinge point is j, one end of the transmission rod 703 is in ball hinge joint with the roller chain disc 702, the hinge point is k, the other end of the transmission rod 703 is in ball hinge joint with the rotary support frame 10, the hinge point is l, and the sprocket 701 is meshed with the roller chain disc 702 for transmission; when the fourth crankshaft 22 is connected with the assembly support frame 6 through the second crank-link mechanism 12, a commutator 13 is connected between the fourth crankshaft 22 and the second crank-link mechanism 12, the commutator 13 comprises a driving bevel gear 131 and a driven bevel gear 132, as shown in fig. 11 and 12, the driving bevel gear 131 and the driven bevel gear 132 are vertically arranged on a shell, the transmission ratio is 1, the driven bevel gear 132 is hinged on the rotary support frame 10, the driving bevel gear 131 is fixedly connected with the fourth crankshaft 22 coaxially, the driven bevel gear 132 is fixedly connected with the sprocket 701 coaxially, the roller chain disc 702 is hinged on the rotary support frame 10, the hinge point is f, one end of the transmission rod 703 is in ball hinge with the roller chain disc 702, the hinge point is g, the other end of the transmission rod 703 is in ball hinge with the assembly support frame 6, the hinge point is h, and the sprocket 701 is in meshed transmission with the roller chain disc 702.
The roller chain disk 702 comprises a disk 7021, rollers 7022 and rivets 7023, wherein the rollers 7022 are uniformly hinged on the circumference of the disk 7021 through the rivets 7023; the distance L3 between the hinge points fg is smaller than the distance L4 between the hinge points he, when the roller chain disc 702 rotates all the time, the component support frame 6 swings in the range of the angle beta, the size of the angle beta can be adjusted by adjusting the lengths of the L3 and L4 and the transmission rod 703, and the working principle is characterized in that the motor can track and reset the solar altitude angle of the photovoltaic component without forward and reverse rotation, and the condition that the tracking device is damaged due to the out-of-control of the motor is avoided, as shown in fig. 13. The distance L5 between the hinge points jk is smaller than the distance L6 between the hinge points il, when the roller chain disc 702 rotates all the time, the rotary support frame 10 swings in the gamma angle range, and the gamma size can be adjusted by adjusting the lengths of the L5 and L6 and the transmission rod 703.
The first crankshaft 2 is fixedly provided with a sprocket 701, the sprocket 701 drives a roller chain disc 702 to rotate while the first crankshaft 2 rotates, the roller chain disc 702 drives a rotary support frame 10 to rotate through a transmission rod 703, so that a component support frame 6 mounted on the rotary support frame 10 is driven to rotate, further a photovoltaic component 8 fixed on the component support frame 6 is driven to realize the movement of tracking the sun azimuth angle, meanwhile, the first crankshaft 2 is coaxially fixedly provided with a second crankshaft 11, the second crankshaft 11 drives a fourth crankshaft 22 mounted on the rotary support frame 10 to synchronously move through a connecting rod 5, further a commutator 13 is driven to rotate, the commutator 13 drives the sprocket 701 connected with the commutator to rotate, the sprocket 701 drives the roller chain disc 702 to rotate, and the roller chain disc 702 drives the component support frame 6 to rotate through the transmission rod 703, so that the photovoltaic component 8 fixed on the component support frame 6 is driven to realize the movement of tracking the sun elevation angle; in practice, the transmission ratio of the second crankshaft 11 to the fourth crankshaft 22 is 1, the transmission ratio of the sprocket and the roller chain disk is i1 in the first crank link mechanism, the transmission ratio of the sprocket and the roller chain disk is i2 in the second crank link mechanism, and the ratio of i1 to i2 is 1:2. By setting the transmission ratio of the chain wheel 701 and the roller chain disc 702, the double-shaft tracking device completes the action of tracking the azimuth angle of the sun from east to west, and simultaneously completes the action of tracking the altitude angle of the sun from the early to the late to be changed from the big to the small, namely, the roller chain disc 702 of the rotary support frame 10 is driven to rotate once, and the roller chain disc 702 of the component support frame 6 is driven to rotate twice.
Claims (9)
1. The utility model provides a unipolar solar tracking device based on bent axle connecting rod drive, its characterized in that is formed by arranging in proper order and connecting a plurality of unipolar tracking units, unipolar tracking unit includes the stand, articulated on the stand has first bent axle, install first worm gear reducer and actuating mechanism on one of them unipolar tracking unit, actuating mechanism drives first worm gear reducer, first worm gear reducer output and first bent axle coaxial fixed connection, the first bent axle of two adjacent unipolar tracking units passes through the connecting rod to be connected, spherical hinge has the subassembly support frame on the stand, the pin joint is a, the subassembly support frame passes through first crank link mechanism and links to each other with first bent axle, be fixed with photovoltaic module on the subassembly support frame;
the first crank connecting rod mechanism comprises a chain wheel, a roller chain disc and a transmission rod, wherein the chain wheel is fixedly connected with the first crankshaft in a coaxial mode, the roller chain disc is hinged to the upright post, the hinge point is b, one end of the transmission rod is hinged to a roller chain disc ball, the hinge point is c, the other end of the transmission rod is hinged to a component supporting frame ball, the hinge point is d, and the chain wheel is meshed with the roller chain disc for transmission.
2. The crankshaft-based single-axis solar tracking apparatus of claim 1 wherein the distance L1 between the hinge points bc is less than the distance L2 between the hinge points ad.
3. The double-shaft solar tracking device based on crankshaft connecting rod transmission is characterized by being formed by connecting a plurality of double-shaft tracking units in a rectangular array mode, wherein each double-shaft tracking unit comprises a stand column, a first crankshaft is hinged to each stand column, a first worm gear reducer is installed on all double-shaft tracking units on one of the north-south columns, the output end of each first worm gear reducer is fixedly connected with the first crankshaft in a coaxial mode, a second crankshaft is fixedly connected with the first crankshaft in a coaxial mode, the input end of each first worm gear reducer is fixedly connected with a third crankshaft in a coaxial mode, a driving mechanism is installed on one double-shaft tracking unit on the north-south column, the driving mechanism drives the first worm gear reducer, and the third crankshafts of two adjacent double-shaft tracking units on the south-north column are connected through connecting rods; the first crankshafts of two adjacent double-shaft tracking units on the east-west column are connected through a connecting rod; the device comprises an upright post, a rotating support frame, a first crank connecting rod mechanism, a fourth crank and a component support frame, wherein the upright post is hinged with the rotating support frame, the hinge point of the rotating support frame is i, the rotating support frame is connected with the first crank through the first crank connecting rod mechanism, the hinge point of the component support frame is e, the fourth crank is connected with the component support frame through the second crank connecting rod mechanism, the fourth crank is connected with the second crank through a connecting rod, and a photovoltaic component is fixed on the component support frame.
4. The crankshaft-linkage-based dual-shaft solar tracking apparatus of claim 3, wherein the first and second crank link mechanisms are identical in structure and each include a sprocket, a roller chain disc, and a drive rod; when the rotary support frame is connected with a first crankshaft through a first crank connecting rod mechanism, the chain wheel is fixedly connected with the first crankshaft in a coaxial way, the roller chain disc is hinged on the upright post, the hinge point is j, one end of the transmission rod is hinged with the roller chain disc ball, the hinge point is k, the other end of the transmission rod is hinged with the rotary support frame ball, the hinge point is l, and the chain wheel is meshed with the roller chain disc for transmission; when the fourth crankshaft is connected with the assembly support frame through the second crank connecting rod mechanism, a commutator is connected between the fourth crankshaft and the second crank connecting rod mechanism, the commutator comprises a driving bevel gear and a driven bevel gear, the driven bevel gear is hinged on the rotary support frame, the driving bevel gear is coaxially and fixedly connected with the fourth crankshaft, the driven bevel gear is coaxially and fixedly connected with the sprocket, the roller chain disc is hinged on the rotary support frame, the hinge point is f, one end of the transmission rod is hinged with the roller chain disc ball, the hinge point is g, the other end of the transmission rod is hinged with the assembly support frame ball, the hinge point is h, and the sprocket is meshed with the roller chain disc for transmission.
5. The crankshaft-based dual-axis solar tracking apparatus of claim 4 wherein the distance L3 between the hinge points fg is less than the distance L4 between the hinge points he; the distance L5 between the hinge points jk is smaller than the distance L6 between the hinge points il.
6. The crankshaft-based connecting rod-driven double-shaft solar tracking device according to claim 4, wherein the fourth crankshaft and the second crankshaft are connected through a connecting rod, and the transmission ratio is 1; in the first crank link mechanism, the transmission ratio of the chain wheel to the roller chain disk isi1, in the second crank link mechanism, the transmission ratio of the sprocket and the roller chain disk isi2，i1 andi2 is 1:2.
7. A solar tracking apparatus as defined in claim 1 or claim 3 wherein the drive mechanism comprises a motor and a second worm gear reducer, the motor driving the second worm gear reducer in rotation.
8. The solar tracking apparatus of claim 4 wherein the roller chain disk comprises a disk, rollers, and rivets, the rollers being evenly hinged to the circumference of the disk by the rivets.
9. A solar tracking apparatus as defined in claim 1 or claim 3 wherein the connecting rod is comprised of two rod end joint bearings, two studs and a threaded sleeve, the two studs being connected by the threaded sleeve, the outer end of each stud being connected to one rod end joint bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035915.XA CN106774455B (en) | 2017-01-18 | 2017-01-18 | Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission |
| PCT/CN2018/071884 WO2018133701A1 (en) | 2017-01-18 | 2018-01-09 | Single-shaft/double-shaft solar tracking device based on crankshaft linkage rod transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035915.XA CN106774455B (en) | 2017-01-18 | 2017-01-18 | Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106774455A CN106774455A (en) | 2017-05-31 |
| CN106774455B true CN106774455B (en) | 2024-02-20 |
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|---|---|---|---|
| CN201710035915.XA Active CN106774455B (en) | 2017-01-18 | 2017-01-18 | Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission |
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| Country | Link |
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| CN (1) | CN106774455B (en) |
| WO (1) | WO2018133701A1 (en) |
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|---|---|---|---|---|
| CN106774455B (en) * | 2017-01-18 | 2024-02-20 | 李樱子 | Single-shaft/double-shaft solar tracking device based on crankshaft connecting rod transmission |
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| CN106774455A (en) | 2017-05-31 |
| WO2018133701A1 (en) | 2018-07-26 |
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