CN110307301A - Photovoltaic tracking thinks highly of load driving structure - Google Patents
Photovoltaic tracking thinks highly of load driving structure Download PDFInfo
- Publication number
- CN110307301A CN110307301A CN201910730741.8A CN201910730741A CN110307301A CN 110307301 A CN110307301 A CN 110307301A CN 201910730741 A CN201910730741 A CN 201910730741A CN 110307301 A CN110307301 A CN 110307301A
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- China
- Prior art keywords
- rotor
- driving structure
- photovoltaic tracking
- load driving
- roller bearing
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S2030/10—Special components
- F24S2030/13—Transmissions
- F24S2030/134—Transmissions in the form of gearings or rack-and-pinion transmissions
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of photovoltaic trackings to think highly of load driving structure, including column, rotor, multiple supporting parts and at least one set of transmission mechanism, in which: column top has a circular base, and circular base is sheathed on rotor exterior；Multiple supporting parts are circumferentially equidistantly connected to circular base, and top the fitting on the outside of rotor with fit clearance of each supporting part fixes rotor radial；Rotor and the contact-segment section of each supporting part are rounded, and can be relative to each supporting part moving in rotation；Transmission mechanism includes driving gear and axle sleeve, and the axle sleeve fixing sleeve is set to rotor exterior and can be coaxial with the rotor rotation, and outside has the multiple gear teeth being uniformly arranged in the circumferential direction；Driving gear engages connection with axle sleeve, can export twisting resistance to axle sleeve to drive rotor moving in rotation.Planetary transmission structure of the gear in conjunction with axle sleeve is driven in the structure, and the bearing capacity of photovoltaic tracking device driving structure is also greatly improved while reducing driving motor power.
Description
Technical field
The present invention relates to photovoltaic tracking device drive areas, think highly of load driving structure more particularly to a kind of photovoltaic tracking.
Background technique
With the development of clean energy resource, photovoltaic project obtains more and more applications, turns as by solar energy
It is changed to the core component of electric energy, the installation of photovoltaic module is put particularly significant.Since the generating efficiency of photovoltaic power generation is by the sun
Irradiation angle is affected, thus can be effective with the mobile photovoltaic module of sunlight irradiating angle using photovoltaic tracking device
Promote photoelectric conversion efficiency.
Photovoltaic tracking device is usually that photovoltaic module is arranged on the rotor connecting with driving mechanism, to track sun
The incident angle of light light.But the load of existing photovoltaic tracking device rotor is lower, the component count of drive is few, this is mainly
Since the driving capability of rotary motion mechanism is poor, severe duty cannot be suitable for well.
Summary of the invention
The present invention provides a kind of driving bearing capacitys by force, low photovoltaic tracking is required power of motor to think highly of load driving knot
Structure, it includes column, rotor, multiple supporting parts and at least one set of transmission mechanism that the photovoltaic tracking, which thinks highly of load driving structure, in which:
The column top has a circular base, and the circular base is sheathed on the rotor exterior；It is held described in multiple
Support portion is circumferentially equidistantly connected to the circular base, and the top of each supporting part has fitting in for fit clearance described
On the outside of rotor, the rotor radial is fixed；The rotor and the contact-segment section of each supporting part are rounded, and can be opposite
In each supporting part moving in rotation；
The transmission mechanism includes driving gear and axle sleeve, and the axle sleeve fixing sleeve is set to the rotor exterior and can be with institute
Rotor coaxial rotation is stated, outside has the multiple gear teeth being uniformly arranged in the circumferential direction；The driving gear engages company with the axle sleeve
It connects, twisting resistance can be exported to the axle sleeve to drive the rotor moving in rotation.
In specific implementation, it includes transmission mechanism described in two groups that the photovoltaic tracking, which thinks highly of load driving structure, is passed described in two groups
Motivation structure is along the two sides for being axially set in the circular base of the rotor.
In specific implementation, the supporting part includes equal two fixed plates, roller bearing and idler wheel, in which:
Two fixed plates are fixedly connected on the circular base two sides along the rotor axial, the roller bearing and described
Idler wheel is parallel to the rotor, and the roller bearing is fixedly connected between two fixed plates, and the idler wheel has fit clearance
Be sheathed on outside the roller bearing, can be relative to the roller bearing sliding friction and relative to the rotor rolling friction.
In specific implementation, the roller bearing is metal roller bearing, and the idler wheel is engineering plastics idler wheel.
In specific implementation, the both ends of the roller bearing are threadedly connected to the screw hole on two fixed plate tops.
In specific implementation, each driving gear is set to one in multiple supporting parts by a fixed plate
Outside, share the same roller bearing with the idler wheel.
In specific implementation, it includes three supporting parts that the photovoltaic tracking, which thinks highly of load driving structure, in which: described in two
Supporting part is correspondingly arranged in the two sides of the rotor bottom.
In specific implementation, the circular base is welded in the top of the column.
In specific implementation, the column is C-type steel column.
In specific implementation, the rotor is the rounded main shaft external member of section rounded main shaft or section.
Photovoltaic tracking provided by the invention thinks highly of load driving structure, including column, rotor, multiple supporting parts and at least one set
Transmission mechanism, rotor traverse inside the circular base being set at the top of column, and multiple supporting parts are circumferentially fixedly connected on annular
The contact-segment section of pedestal, each supporting part top fixing rotor radial with fit clearance, rotor and each supporting part is in circle
Shape, can be relative to supporting part and circular base moving in rotation；Transmission mechanism includes that axle sleeve and driving gear, axle sleeve are sheathed on rotor
It is external and be uniformly arranged in the circumferential direction multiple gear teeth, rotation can be coaxial with the rotor；Drive multiple gear teeth meshings of gear and axle sleeve
Connection can export twisting resistance to axle sleeve to drive rotor moving in rotation.The photovoltaic tracking, which is thought highly of, carries driving structure for existing
The load of photovoltaic tracking device driving structure is low, to the demanding defect of power of motor, and creative proposes driving gear and axle sleeve
In conjunction with planetary transmission structure, photovoltaic tracking device driving structure is also greatly improved while reducing driving motor power
Bearing capacity, which can be effectively reduced the integral device cost of photovoltaic tracking system, to further decrease cost of electricity-generating.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is only certain specific embodiments of the invention, for those of ordinary skill in the art, is not paying creativeness
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:
Fig. 1 is that photovoltaic tracking thinks highly of the structural schematic diagram for carrying driving structure in a specific embodiment according to the present invention；
Fig. 2 is that photovoltaic tracking thinks highly of the perspective view of the explosion for carrying driving structure in a specific embodiment according to the present invention.
Specific embodiment
For the purposes, technical schemes and advantages of the specific embodiment of the invention are more clearly understood, with reference to the accompanying drawing
The specific embodiment of the invention is described in further details.Here, schematic specific embodiment of the invention and its explanation
It is used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 1 and Figure 2, that the present invention provides a kind of driving bearing capacitys is strong, power of motor is required low photovoltaic with
Track thinks highly of load driving structure, and it includes column 100, rotor 200, multiple supporting parts 300 that the photovoltaic tracking, which thinks highly of load driving structure,
And at least one set of transmission mechanism 400, in which:
100 top of column has a circular base 110, and the circular base 110 is sheathed on outside the rotor 200
Portion；Multiple supporting parts 300 are circumferentially equidistantly connected to the circular base 110, the top tool of each supporting part 300
There is 200 outside of rotor that fits in of fit clearance, the rotor 200 is radially fixed；The rotor 200 described is held with each
The contact-segment section in support portion 300 is rounded, and can be relative to each 300 moving in rotation of supporting part；
The transmission mechanism 400 includes driving gear 410 and axle sleeve 420, and 420 fixing sleeve of axle sleeve is set to the rotor
200 outsides simultaneously can be with 200 coaxial rotating of rotor, and outside has the multiple gear teeth 421 being uniformly arranged in the circumferential direction；The driving
Gear 410 engages connection with the axle sleeve 420, can export twisting resistance to the axle sleeve 420 to drive the rotation of rotor 200 to move
It is dynamic.
In specific implementation, the group number of transmission mechanism 400 in setting can there are many embodiments, for example, in order to guarantee
The bearing capacity of the driving structure, it may include transmission mechanism 400 described in two groups that the photovoltaic tracking, which thinks highly of load driving structure,；Into
One step, in order to enable 200 uniform force of rotor, transmission mechanism 400 described in two groups can be along the axial direction setting of the rotor 200
In the two sides of the circular base 110.
In specific implementation, the setting of supporting part 300 can be there are many embodiment.For example, in order to promote the driving structure
Bearing capacity, the supporting part 300 may include equal two fixed plates 330, roller bearing 310 and idler wheel 320, in which: two
The fixed plate 330 can be connected to 110 two sides of circular base along 200 axial restraint of rotor, the roller bearing 310 and
The idler wheel 320 is parallel to the rotor 200, and the roller bearing 310 is fixedly connected between two fixed plates 330, described
There is idler wheel 320 fit clearance to be sheathed on outside the roller bearing 310, can be relative to 310 sliding friction of roller bearing and opposite
In 200 rolling friction of rotor.When fixed plate 330 is arranged, in order to guarantee to connect between fixed plate 330 and circular base 110
Securely, functional reliability is promoted, two screw holes can be set in the tail end of fixed plate 330, by stay bolt by two fixed plates
330 are correspondingly connected to 110 two sides of circular base.
In specific implementation, in specific implementation, the selection of 320 material of roller bearing 310 and idler wheel can be there are many embodiment.Example
Such as, in order to guarantee the service life of roller bearing 310 and effectively be supported to rotor 200, the roller bearing 310 can roll for metal
Axis；Since engineering plastics have excellent self-lubricating effect, thus in order to reduce abrasion, the idler wheel 320 can be engineering plastic
Material roller.
In specific implementation, roller bearing 310 can be there are many embodiment when being connected to setting with fixed plate 330.For example, institute
The both ends for stating roller bearing 310 can be set screw thread and be threadedly connected to the screw hole on two 330 tops of fixed plate.
In specific implementation, drive the setting of gear 410 can be there are many embodiment.For example, being convenient for simplify structure
Installation, each driving gear 410 can be set to one in multiple supporting parts 300 by a fixed plate 330
Outside, share the same roller bearing 310 with the idler wheel 320.Fixed plate 330 when setting, for stationary drive gear 410
It is arranged in parallel with the fixed plate 330 of supporting part 300, tail end shares stay bolt and is fixed on circular base 110, and roller bearing 310 is then successively
It is arranged through the top of each fixed plate 330, so that driving gear 410 and idler wheel 320 share same roller bearing 310.
In specific implementation, the setting of the 300 groups of numbers in supporting part can be there are many embodiment.For example, the photovoltaic tracking device
Heavily loaded driving structure includes three supporting parts 300, and three supporting parts 300 are arranged, and can not only guarantee bearing capacity and right
Rotor 200 is radially carrying out effective position, can also reduce the manufacturing cost of the driving structure.Further, in order to mention
The structural bearing capacity is risen, two supporting parts 300 can be correspondingly arranged in the two sides of 200 bottom of rotor, play support
The effect of 200 weight of entire rotor.
In specific implementation, the connection of circular base 110 and column 100 can be there are many embodiment.For example, in order to guarantee
The bond strength of circular base 110 and column 100, the circular base 110 can be welded in the top of the column 100.
In specific implementation, the selection of column 100 can be there are many embodiment.For example, since C-type steel intensity is big and cost
It is lower, thus the column 100 can be C-type steel column 100.
In specific implementation, the setting of rotor 200 can be there are many embodiment.For example, due to rotor 200 and supporting part
300 contact-segment is cylinder Shi Caike with moving in rotation, thus the rotor 200 can be the rounded main shaft in section；Example again
Such as, when main shaft is not cylindrical body, rotor 200 can be the rounded main shaft external member in section, the inside shape of the main shaft external member
The shape of shape and main shaft is mutually agreed with, and can be fixed on the outside of main shaft, so that the main shaft of non-cylindrical can be in circular base
Moving in rotation in 110.
In conclusion photovoltaic tracking provided by the invention thinks highly of load driving structure, including it is column 100, rotor 200, multiple
Supporting part 300 and at least one set of transmission mechanism 400, rotor 200, which traverses, to be set to inside the circular base 110 at 100 top of column,
Multiple supporting parts 300 are circumferentially fixedly connected on circular base 110, at the top of each supporting part 300 with fit clearance by rotor
200 is radially fixed, and rotor 200 and the contact-segment section of each supporting part 300 are rounded, can be relative to supporting part 300 and annular base
110 moving in rotations of seat；Transmission mechanism 400 includes axle sleeve 420 and driving gear 410, axle sleeve 420 be sheathed on the outside of rotor 200 and
Multiple gear teeth 421 have been uniformly arranged in the circumferential direction, it can be with 200 coaxial rotating of rotor；Drive multiple wheels of gear 410 and axle sleeve 420
The engagement connection of tooth 421 can export twisting resistance to axle sleeve 420 to drive 200 moving in rotation of rotor.The photovoltaic tracking thinks highly of load driving
Structure for existing photovoltaic tracking device driving structure load it is low, to the demanding defect of power of motor, creative proposes
The planetary transmission structure that driving gear 410 is combined with axle sleeve 420, is also greatly improved while reducing driving motor power
The integral device cost of photovoltaic tracking system can be effectively reduced in the bearing capacity of photovoltaic tracking device driving structure, the structure, from
And further decrease cost of electricity-generating.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of photovoltaic tracking thinks highly of load driving structure, it includes column (100), rotor that the photovoltaic tracking, which thinks highly of load driving structure,
(200), multiple supporting parts (300) and at least one set of transmission mechanism (400), in which:
Column (100) top has a circular base (110), and the circular base (110) is sheathed on the rotor (200)
It is external；Multiple supporting parts (300) are circumferentially equidistantly connected to the circular base (110), each supporting part (300)
Top there is the fitting on the outside of the rotor (200) of fit clearance, the rotor (200) is radially fixed；The rotor
(200) rounded with the contact-segment section of each supporting part (300), and can be moved relative to each supporting part (300) rotation
It is dynamic；
The transmission mechanism (400) includes driving gear (410) and axle sleeve (420), and axle sleeve (420) fixing sleeve is set to described
Rotor (200) is external and can be with the rotor (200) coaxial rotating, and outside has the multiple gear teeth being uniformly arranged in the circumferential direction
(421)；The driving gear (410) engages connection with the axle sleeve (420), can to the axle sleeve (420) export twisting resistance with
Drive the rotor (200) moving in rotation.
2. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the photovoltaic tracking thinks highly of load driving structure
Including transmission mechanism (400) described in two groups, transmission mechanism described in two groups (400) is axially set in institute along the rotor (200)
State the two sides of circular base (110).
3. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the supporting part 300 includes equal two solid
Fixed board (330), roller bearing (310) and idler wheel (320), in which:
Two fixed plates (330) are connected to the circular base (110) two sides, institute along the rotor (200) axial restraint
It states roller bearing (310) and the idler wheel (320) is parallel to the rotor (200), the roller bearing (310) is fixedly connected on described in two
Between fixed plate (330), the idler wheel (320) is sheathed on the roller bearing (310) outside with fit clearance, can be relative to institute
State roller bearing (310) sliding friction and relative to the rotor (200) rolling friction.
4. photovoltaic tracking as claimed in claim 3 thinks highly of load driving structure, wherein the roller bearing (310) is metal roller bearing, institute
Stating idler wheel (320) is engineering plastics idler wheel.
5. photovoltaic tracking as claimed in claim 3 thinks highly of load driving structure, wherein the both ends screw thread of the roller bearing (310) connects
It is connected to the screw hole on two fixed plate (330) tops.
6. photovoltaic tracking as claimed in claim 3 thinks highly of load driving structure, wherein each driving gear (410) passes through one
The fixed plate (330) is set to one outside in multiple supporting parts (300), shares with the idler wheel (320) same
One roller bearing (310).
7. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the photovoltaic tracking thinks highly of load driving structure
Including three supporting parts (300), in which: two supporting parts (300) are correspondingly arranged in the rotor (200) bottom
Two sides.
8. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the circular base (110) is welded in institute
State the top of column (100).
9. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the column (100) is C-type steel column.
10. photovoltaic tracking as described in claim 1 thinks highly of load driving structure, wherein the rotor (200) is that section is rounded
The rounded main shaft external member of main shaft or section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730741.8A CN110307301B (en) | 2019-08-08 | 2019-08-08 | Photovoltaic tracker heavy load drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730741.8A CN110307301B (en) | 2019-08-08 | 2019-08-08 | Photovoltaic tracker heavy load drive structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110307301A true CN110307301A (en) | 2019-10-08 |
| CN110307301B CN110307301B (en) | 2024-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910730741.8A Active CN110307301B (en) | 2019-08-08 | 2019-08-08 | Photovoltaic tracker heavy load drive structure |
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| CN (1) | CN110307301B (en) |
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