CN115473482B - Double-pin grooved pulley transmission type photovoltaic tracking bracket - Google Patents
Double-pin grooved pulley transmission type photovoltaic tracking bracket Download PDFInfo
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- CN115473482B CN115473482B CN202210699611.4A CN202210699611A CN115473482B CN 115473482 B CN115473482 B CN 115473482B CN 202210699611 A CN202210699611 A CN 202210699611A CN 115473482 B CN115473482 B CN 115473482B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 24
- 239000003638 chemical reducing agent Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- 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
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
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- 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
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/425—Horizontal axis
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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
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- Engineering & Computer Science (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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a double pin sheave transmission formula photovoltaic tracking support, includes a plurality of support stands, installs at least a set of drive wheel and the photovoltaic main shaft on these a plurality of support stands, the drive wheel include by actuating mechanism driven action wheel and with the driven driving wheel that the photovoltaic main shaft is connected, the action wheel sets up to double pin structure, the driven driving wheel sets up to fan-shaped sheave structure, the double pin of action wheel with the multiple groove intermeshing of fan-shaped sheave of driven driving wheel. According to the double-pin grooved pulley transmission type photovoltaic tracking bracket, as the driving wheel of the transmission mechanism is of a double-pin structure, the defect that errors are easy to occur in the engagement of the driving wheel and the driven wheel is overcome, the shaking phenomenon of the photovoltaic tracking bracket during operation is reduced, and the overall stability of the bracket is improved. And the driving wheel is arranged into a double-pin structure, so that the self-locking capacity of the photovoltaic tracking bracket can be maximized, and the bracket can be effectively prevented from being damaged possibly under the dead weight and the wind-snow load.
Description
Technical Field
The invention relates to a solar photovoltaic support, in particular to a double-pin grooved pulley transmission type photovoltaic tracking support.
Background
When the solar photovoltaic support, especially the large-area solar photovoltaic support array, is installed on the ground or the water surface, the orientation of the photovoltaic module needs to be adjusted timely, so that sunlight directly irradiates the light receiving plane of the photovoltaic panel, and the photovoltaic power generation capacity is improved. An existing photovoltaic support, for example, a patent application of the invention in China, no. 201410781914.6, shown in fig. 14, discloses a photovoltaic power generation oblique single-axis tracking support, wherein an electric push rod is adopted to drive an azimuth push rod so as to drive the steering of a photovoltaic module. However, similar push-rod angle-adjusted photovoltaic brackets have shorter push-rod life, resulting in less reliable safe operation of the entire photovoltaic bracket. For example, the chinese patent application No. 202011115804.8 shown in fig. 15 and 16 discloses a novel transmission device for a photovoltaic tracking bracket, in which a gear is engaged with a slot hole on a fan-shaped steel structure to adjust the steering direction of a photovoltaic module on the bracket. However, in a similar transmission device, there are usually more than two meshing teeth of the driving wheel, and when the driving wheel is meshed with the slot of the driven wheel, only one meshing tooth deviates from the slot, so that the phenomenon of clamping teeth is easily caused. Moreover, similar transmission devices adopt the form of gear engagement transmission, which cannot be self-locking by itself or require the help of an external mechanism to satisfy the self-locking condition. The photovoltaic support which normally operates is required to keep stability of the support in the assembly angle adjusting process or after the adjustment is finished, and a certain self-locking force is required to meet the demand of the photovoltaic assembly for overcoming the dead weight and the wind and snow pressure load, so that the photovoltaic support which cannot provide the gear meshing transmission structure with the self-locking capability is required to be additionally provided with the self-locking mechanism, and therefore the production cost of the photovoltaic support and the complexity of equipment operation are increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a double-pin grooved pulley transmission type photovoltaic tracking bracket.
The invention relates to a double-pin grooved pulley transmission type photovoltaic tracking bracket, which comprises a plurality of bracket upright posts, at least one group of driving wheels and a photovoltaic main shaft, wherein the driving wheels are arranged on the plurality of bracket upright posts, each driving wheel comprises a driving wheel driven by a driving mechanism and a driven wheel connected with the photovoltaic main shaft, the driving wheel is arranged into a double-pin structure, the driven wheel is arranged into a fan-shaped grooved pulley structure, and the double pins of the driving wheel are meshed with the fan-shaped grooved pulley of the driven wheel.
The driven wheel comprises a circular arc-shaped rack, a main shaft connecting part and spokes connected between the circular arc-shaped rack and the main shaft connecting part.
The arc-shaped rack is provided with strip-shaped grooves which are uniformly distributed.
The strip-shaped groove is arranged in a shape of expanding outwards and shrinking inwards with inclination.
The double pin of the driving wheel comprises a pair of parallel symmetrical cylindrical pins which are meshed with the strip-shaped grooves.
The arc-shaped racks are provided with uniformly distributed strip-shaped grooves and fan-shaped grooves at intervals.
The double pins of the driving wheel comprise a cylindrical small pin and an arc sector-shaped large pin, the cylindrical small pin is meshed with the strip-shaped groove of the driven wheel, and the arc sector-shaped large pin is meshed with the sector-shaped groove of the driven wheel.
The circular arc sector big pin is concentric with the circle center of the rotation of the driving wheel.
The circular arc-shaped racks are formed by combining long strip-shaped groove pieces and circular arc-shaped fan-shaped groove pieces, and the long strip-shaped grooves and the circular arc-shaped fan-shaped grooves are staggered with each other, so that the long strip-shaped grooves and the circular arc-shaped fan-shaped grooves are uniformly distributed along the circular arc-shaped racks.
The double pins of the driving wheel comprise a cylindrical small pin and an arc sector big pin, the cylindrical small pin and the arc sector big pin are respectively arranged on two sides of a middle disc, the cylindrical small pin is meshed with the strip-shaped groove piece of the driven wheel, and the arc sector big pin is meshed with the arc sector groove piece of the driven wheel.
According to the double-pin grooved pulley transmission type photovoltaic tracking bracket, as the driving wheel of the transmission mechanism is of a double-pin structure, the defect that errors are easy to occur in the engagement of the driving wheel and the driven wheel is overcome, the shaking phenomenon of the photovoltaic tracking bracket during operation is reduced, and the overall stability of the bracket is improved. And the driving wheel is arranged into a double-pin structure, so that the self-locking capacity of the photovoltaic tracking bracket can be maximized, and the bracket can be effectively prevented from being damaged possibly under the dead weight and the wind-snow load.
Drawings
Fig. 1 is a schematic diagram showing the structure of a double pin sheave driven photovoltaic tracking bracket according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing the structure of a capstan of the double pin sheave driven photovoltaic tracking stent of fig. 1.
Fig. 3 is a schematic view showing the construction of a driven wheel of the double pin sheave driven photovoltaic tracking bracket of fig. 1.
Fig. 4 is a schematic diagram showing the motion of the drive mechanism of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 1.
Fig. 5 is a schematic diagram showing a linkage of the double pin sheave drive type photovoltaic tracking bracket of fig. 1.
Fig. 6 is a schematic diagram showing a double pin sheave drive photovoltaic tracking stent array formed by the linkage mechanism of fig. 5.
Fig. 7 is a schematic diagram showing the structure of a double pin sheave driven photovoltaic tracking bracket according to another embodiment of the present invention.
Fig. 8 is a schematic diagram illustrating the configuration of a capstan of one embodiment of the dual pin sheave drive type photovoltaic tracking bracket of fig. 7.
Fig. 9 is a schematic diagram showing a cross section of a central portion of the capstan of fig. 8.
Fig. 10 is a schematic diagram illustrating the construction of a driven wheel of one embodiment of the double pin sheave drive type photovoltaic tracking bracket of fig. 7.
Fig. 11 is a schematic diagram showing the configuration of a capstan of another embodiment of the double pin sheave drive type photovoltaic tracking stent shown in fig. 7.
Fig. 12 is a schematic view showing the construction of a driven wheel of another embodiment of the double pin sheave drive type photovoltaic tracking bracket of fig. 7.
Fig. 13 is a schematic diagram showing the actuation of the actuator of the double pin sheave actuated photovoltaic tracking bracket according to another embodiment of the present invention.
Fig. 14 to 16 are schematic views showing a prior art photovoltaic tracking stand.
Detailed Description
The following detailed description of the double pin sheave driven photovoltaic tracking stent of the present invention will be made with reference to the accompanying drawings and examples, which are to be understood by those skilled in the art as illustrative only, and which are intended to aid in the understanding of the basic concepts of the present invention.
Fig. 1 is a schematic diagram showing the structure of a double pin sheave driven photovoltaic tracking bracket according to an embodiment of the present invention. Referring to fig. 1, the double-pin sheave transmission type photovoltaic tracking support comprises a plurality of support upright posts, at least one group of driving wheels and a photovoltaic main shaft, wherein the driving wheels are arranged on the support upright posts and comprise a driving wheel driven by a driving mechanism and a driven wheel connected with the photovoltaic main shaft, the driving wheel is arranged into a double-pin structure, and the driven wheel is arranged into a fan-shaped sheave structure. Specifically, the photovoltaic main shaft 1 is mounted at the top of the upright post 3 through a main shaft bearing seat 2, the driving wheel 4 is fixed at the side of the upright post 3 through a driving wheel bearing seat 5 and a bearing seat fixing support 6 thereof, and the top of the driven wheel 7 is connected to the photovoltaic main shaft 1 through a hoop 8. Wherein the fan-shaped grooved wheel 71 of the driven wheel 7 is engaged with the double pin of the driving wheel 4. The upright 3 is provided with a reducer fixing seat 18 beside the position where the driving wheel 4 is installed, and a reducer (not shown) is installed on the reducer fixing seat, when the driving wheel 4 is driven to rotate by a driving mechanism and the reducer, the driven wheel 7 can be driven to swing left and right, so that the photovoltaic module 9 installed on the upright can track the running track of the sun to steer.
Fig. 2 is a schematic diagram showing the structure of a driving wheel of the double-pin sheave transmission type photovoltaic tracking bracket shown in fig. 1, and fig. 3 is a schematic diagram showing the structure of a driven wheel of the double-pin sheave transmission type photovoltaic tracking bracket shown in fig. 1. Referring to fig. 2 and 3 in combination, the drive wheel 4 includes a pair of parallel symmetrical cylindrical pins 41, also known as double pins, and pin mounting plates 42 and 43 disposed at opposite ends of the cylindrical pins. The mounting plate 42 is connected to a speed reducer (similar to a worm gear speed reducer, with a self-locking function), for example, by a drive arm 421, and the mounting plate 43 is connected to a bracket linkage, for example, by a linkage arm 431, and vice versa. The driven wheel 7 includes a circular arc-shaped rack 71, a spindle connection portion 72, and spokes 73 connected between the circular arc-shaped rack 71 and the spindle connection portion 72. Wherein, the arc-shaped rack 71 is provided with uniformly distributed long strip-shaped grooves 711, and the length of the long strip-shaped grooves is 50mm-65mm. The tail (i.e. bottom) of the groove 711 is for example provided with substantially the same diameter as the cylindrical pin 41, and the head (i.e. at the opening) is for example provided with a diameter of 106% -118%, preferably 112% of the diameter of the tail, forming a flared inner band taper shape. The spacing between the pair of cylindrical pins 41 of the driving pulley 4 is set to coincide with the spacing between the adjacent grooves 711 of the driven pulley 7 so that the two can be engaged with each other to transmit. Because the outer-expansion and inner-contraction long-strip-shaped groove 711 of the driven wheel 7 makes the diameter of the head part of the driven wheel be slightly larger than the diameter of the tail part of the driven wheel, namely slightly larger than the diameter of the cylindrical pin 41, when the double pin 41 of the driving wheel is simultaneously positioned on two adjacent grooves 711, the problem that the two pins are easy to generate clamping teeth in the grooves in the meshing process is solved. The diameter of the tail part of the strip-shaped groove 711 which is expanded outwards and retracted inwards of the driven wheel 7 is equal to the diameter of the cylindrical pin 41, so that the cylindrical pin can play a role of tightly taking the driven wheel in the process of meshing the cylindrical pin, the shaking condition of the photovoltaic bracket can be effectively reduced, and the stability of the bracket is improved. The two ends of the circular arc-shaped rack 71 of the driven wheel 7 are provided with a driving wheel anti-disengaging structure 713 which is basically parallel to the long-strip-shaped groove 711 and longer than the long-strip-shaped groove 711, so that the driving wheel 4 can be prevented from disengaging from the circular arc-shaped rack 71 in the transmission process, and the condition that the photovoltaic module is damaged due to the fact that the driving wheel and the driven wheel are invalid due to excessive angle adjustment possibly occurring in the photovoltaic bracket is avoided.
Fig. 4 is a schematic diagram showing the motion of the drive mechanism of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 1. Referring to fig. 1 to 4 in combination, according to the double-pin sheave transmission type photovoltaic tracking bracket of the present invention, the movement of the cylindrical pin 41 in the elongated groove 711 of the driven wheel is similar to an up-down reciprocating movement in the process of meshing the driving wheel 4 with the driven wheel 7, and the meshing contact time between the two is long, so that the photovoltaic bracket can be more stable in the angle adjustment process, and the adjustment precision is higher. In addition, as the driving wheel 4 mainly has a cylindrical pin for transmission in the process of rotating one circle, the meshing difficulty between the driving wheel 4 and the driven wheel is reduced, and the transmission is smoother. Correspondingly, the driven wheel 7 is in a state that the groove 711 of the driven wheel is mainly clamped on one cylindrical pin 41 of the double pin most of the time in the process of being meshed with the driving wheel 4, so that the driven wheel has a certain self-locking effect. When the photovoltaic bracket operates, for example, the proximity sensor 47 can be installed at a proper position such as the driving wheel bearing seat 5, the position relationship between the double pin of the driving wheel 4 and the groove 711 of the driven wheel 7 can be detected in real time, and when the photovoltaic bracket is in each transmission end, one cylindrical pin 41 of the double pin can be kept at the tail position of the groove 711, and the two cylindrical pins of the double pin and the strip-shaped groove are basically positioned on the same straight line, so that the self-locking capability of the photovoltaic bracket is maximized.
Fig. 5 is a schematic diagram showing a linkage of the double-pin sheave drive type photovoltaic tracking bracket shown in fig. 1, and fig. 6 is a schematic diagram showing an array of double-pin sheave drive type photovoltaic tracking brackets composed of the linkage shown in fig. 5. Referring to fig. 1, 5 and 6 in combination, the link arm 431 of the drive wheel 4 is connected to the bracket link lever 48, for example, through a bearing sleeve 481. For example, a plurality of sets of double pin sheave drives are uniformly arranged in a single row photovoltaic module array, and each double pin sheave drive can be interconnected by a module linkage 48. And a decelerator 181 and a driving motor required by the driving of the decelerator are arranged at the end part of the single-row photovoltaic bracket array or on a stand column at a proper position, and all double-pin grooved pulley driving mechanisms in the bracket array can be linked through a bracket linkage rod 48, so that all photovoltaic modules in the photovoltaic bracket array can be linked to track the running track of the sun, and the tracking and adjusting effect of multi-point linkage is realized. Preferably, a worm and gear reducer can be configured between the driving wheel 4 and the bracket linkage rod 48 according to the actual calculated multipoint linkage spindle torque in the photovoltaic bracket array, so that the bracket linkage tracking precision is improved. Preferably, an angle sensor (not shown) is installed at the photovoltaic bracket array to precisely feed back and control the steering and adjustment angle of the photovoltaic module.
Fig. 7 is a schematic diagram showing the structure of a double pin sheave driven photovoltaic tracking bracket according to another embodiment of the present invention. Referring to fig. 7, the double-pin sheave transmission type photovoltaic tracking support comprises a plurality of support columns, at least one group of driving wheels and a photovoltaic main shaft, wherein the driving wheels are arranged on the support columns, each driving wheel comprises a driving wheel driven by a driving mechanism and a driven wheel connected with the photovoltaic main shaft, the driving wheels are arranged into a double-pin structure, and the driven wheels are arranged into a fan-shaped sheave structure. Specifically, the photovoltaic main shaft 1 is mounted on the top of the upright 3, for example, through a main shaft bearing seat 2, the driving wheel 4 'is fixed on the side of the upright 3, for example, through a driving wheel bearing seat (not shown), and the top of the driven wheel 7' is connected to the photovoltaic main shaft 1, for example, through a hoop 8. Wherein the fan-shaped grooved wheel 71' of the driven wheel 7' is intermeshed with the double pin of the driving wheel 4 '. The upright post 3 is provided with a speed reducer fixing seat beside the position where the driving wheel 4' is installed, and a speed reducer (not shown) is installed on the speed reducer fixing seat, when the driving wheel 4' is driven to rotate by a driving mechanism and the speed reducer, the driven wheel 7' can be driven to swing leftwards and rightwards, so that the photovoltaic module installed on the photovoltaic main shaft 1 can track the running track of the sun to steer.
Fig. 8 is a schematic diagram showing the structure of a driving wheel of one embodiment of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 7, fig. 9 is a schematic diagram showing a cross section of a central portion of the driving wheel shown in fig. 8, and fig. 10 is a schematic diagram showing the structure of a driven wheel of one embodiment of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 7. Referring to fig. 7-10 in combination, the drive wheel 4' includes a pair of parallel pins, also known as double pins, one of which is a cylindrical small pin 411 and the other is a circular arc sector large pin 412, the latter being concentric 4121 with the centre of rotation of the drive wheel. Preferably, the diameter of the circular arc sector-shaped large pin is set to 180% of the diameter of the cylindrical small pin, for example. The driving wheel 4' further comprises pin-fixing mounting discs 42' and 43' arranged at both ends of the double pin, wherein the mounting disc 42' is for example connected with a speed reducer (like a worm gear speed reducer, with a self-locking function), and the mounting disc 43' is for example connected with a bracket linkage, or vice versa. The driven wheel 7 'includes a circular arc-shaped rack 71', a spindle connection 72', and spokes 73' connected between the circular arc-shaped rack 71 'and the spindle connection 72'. Wherein, the arc-shaped racks 71 'are provided with uniformly distributed elongated grooves 711' and fan-shaped grooves 712 at intervals. The tail of the groove 711' is provided to have substantially the same diameter as the cylindrical small pin 411. The spacing between the pair of pins 411 and 412 of the driving pulley 4' is set to coincide with the spacing between the adjacent elongated groove 711' of the driven pulley 7' and the fan-shaped groove 712 so that the two can be engaged with each other to transmit.
In the process of the transmission engagement of the driving wheel 4' and the driven wheel 7', the cylindrical small pin 411 mainly plays a role in transmission, the circular arc fan-shaped large pin 412 mainly plays a role in angle limiting, and because the circular arc fan-shaped large pin 412 is concentric with the rotating circle center of the driving wheel 4', the photovoltaic bracket only moves axially in the angle adjustment process, and not only can play a role in limiting, but also can achieve the self-locking effect. Similarly, the two ends of the circular arc-shaped rack 71' of the driven wheel 7' are provided with a driving wheel anti-disengaging structure 713', which is basically parallel to the long-strip-shaped groove 711', but longer than the long-strip-shaped groove 711', so that the driving wheel 4' can be prevented from being disengaged from the circular arc-shaped rack 71' in the transmission process, and the condition that the photovoltaic module is damaged due to the fact that the driving wheel and the driven wheel are invalid due to excessive angle adjustment possibly occurring in the photovoltaic bracket is avoided.
Fig. 11 is a schematic diagram showing the structure of a driving wheel of another embodiment of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 7, and fig. 12 is a schematic diagram showing the structure of a driven wheel of another embodiment of the double pin sheave drive type photovoltaic tracking bracket shown in fig. 7. Referring to fig. 11 and 12 in combination, the drive wheel 4 "also comprises a pair of pins, also called double pins, one of which is a small cylindrical pin 411 and the other is a large circular arc sector pin 412, the latter being concentric with the centre of rotation of the drive wheel. The driving wheel 4 "also comprises pin-fixing mounting discs 42 'and 43' arranged at both ends of the double pin, wherein the mounting disc 42 'is for example connected with a speed reducer (like a worm gear speed reducer, with a self-locking function), and the mounting disc 43' is for example connected with a bracket linkage, or vice versa. Unlike the capstan 4' shown in fig. 8, the capstan 4 "according to the present embodiment, in which the cylindrical small pins 411 and the circular arc sector large pins 412 are provided separately on both sides of one intermediate disk 415. Correspondingly, the circular arc-shaped rack 71' of the driven wheel 7″ is formed by combining the long strip-shaped groove sheet 771 and the circular arc-shaped groove sheet 772. As shown, the elongated groove segments 771 and the arcuate segment groove segments 772 are, for example, superimposed on one another such that the elongated grooves and the arcuate segment grooves therein are offset from one another, the groove segments 771 and 772 being secured by the spokes 73'. Preferably, the spacing between the elongated groove segments 771 and the circular arc sector shaped groove segments 772 is set to be substantially the same as the spacing between the cylindrical small pins 411 and the circular arc sector shaped large pins 412 spaced on either side of the intermediate disk 415 to ensure that the driving wheel 4 "and the driven wheel 7" are capable of being matingly engaged together.
Fig. 13 is a schematic diagram showing the actuation of the actuator of the double pin sheave actuated photovoltaic tracking bracket according to another embodiment of the present invention. Referring to fig. 11 to 13 in combination, the circular arc rack 71' of the driven pulley 7″ is formed by combining a long groove piece 771 and a circular arc sector groove piece 772, wherein the long groove piece 771 is mainly used for engaging with the cylindrical small pin 411 of the driving pulley 4", the circular arc sector groove piece 772 is mainly used for engaging with the circular arc sector large pin 412 of the driving pulley, and the two groove pieces adopt a staggered structure. The arc-shaped rack 71' adopts a structure formed by combining the strip-shaped groove sheet 771 and the arc-shaped fan-shaped groove sheet 772, so that on one hand, the problem that the driven wheel is likely to break due to the fact that the distance between the adjacent strip-shaped grooves and the arc-shaped fan-shaped grooves is too small in the integrated arc-shaped rack can be effectively avoided; on the other hand, the strip-shaped groove and the circular arc fan-shaped groove are respectively matched with the cylindrical small pin and the circular arc fan-shaped large pin, and the strip-shaped groove and the circular arc fan-shaped groove are matched with each other, so that the self-locking capability of the transmission mechanism can be enhanced, the minimum tracking and adjusting angle of the photovoltaic support can be better matched, and the tracking precision of the support is improved.
The foregoing is merely a few examples of the double pin sheave driven photovoltaic tracking brackets of this invention and those skilled in the art can make various changes and modifications thereto in light of the above-described concepts of this invention, but all such changes and modifications are within the scope of this invention.
Claims (3)
1. The utility model provides a double pin sheave transmission formula photovoltaic tracking support, includes a plurality of support stands, installs at least a set of drive wheel and the photovoltaic main shaft on these a plurality of support stands, the drive wheel include by actuating mechanism driven action wheel and with the driven wheel that the photovoltaic main shaft is connected, the action wheel sets up to double pin structure, set up into fan-shaped sheave structure from the driving wheel, the driven wheel includes arc rack, spindle connection and the spoke of connection between arc rack and spindle connection, the arc rack is formed by rectangular shape recess piece and the combination of circular arc fan-shaped recess piece, and rectangular shape recess staggers each other with circular arc fan-shaped recess for rectangular shape recess and circular arc fan-shaped recess are followed circular arc rack evenly distributed, the double pin of action wheel includes cylindrical little pin and circular arc fan-shaped big pin, cylindrical little pin with circular arc fan-shaped big pin divides to set up in the both sides of a middle disc, cylindrical little pin with the rectangular shape recess piece of driven wheel meshes, circular arc fan-shaped big pin with the circular arc fan-shaped recess piece of driven wheel meshes.
2. The dual pin sheave driven photovoltaic tracking bracket of claim 1, wherein the elongated grooves are configured in the shape of a flared inner belt taper.
3. The double pin sheave driven photovoltaic tracking bracket of claim 2, wherein the circular arc sector shaped large pin is concentric with the center of rotation of the drive wheel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210699611.4A CN115473482B (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
| CN202310862741.XA CN117060828A (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210699611.4A CN115473482B (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310862741.XA Division CN117060828A (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
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| Publication Number | Publication Date |
|---|---|
| CN115473482A CN115473482A (en) | 2022-12-13 |
| CN115473482B true CN115473482B (en) | 2023-07-21 |
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|---|---|---|---|
| CN202210699611.4A Active CN115473482B (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
| CN202310862741.XA Pending CN117060828A (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
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| CN202310862741.XA Pending CN117060828A (en) | 2022-06-20 | 2022-06-20 | Double-pin grooved pulley transmission type photovoltaic tracking bracket |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332764A (en) * | 2020-10-19 | 2021-02-05 | 福建安泰新能源科技有限公司 | Novel transmission device for photovoltaic tracking support |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209767460U (en) * | 2019-04-17 | 2019-12-10 | 常州中信博新能源科技有限公司 | linkage type thumb wheel transmission tracking system |
| CN210839447U (en) * | 2019-11-26 | 2020-06-23 | 杭州华鼎新能源有限公司 | Flat single-shaft linkage solar tracking system |
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2022
- 2022-06-20 CN CN202210699611.4A patent/CN115473482B/en active Active
- 2022-06-20 CN CN202310862741.XA patent/CN117060828A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332764A (en) * | 2020-10-19 | 2021-02-05 | 福建安泰新能源科技有限公司 | Novel transmission device for photovoltaic tracking support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117060828A (en) | 2023-11-14 |
| CN115473482A (en) | 2022-12-13 |
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