CN210770049U - A multi-point parallel synchronous drive device - Google Patents

Abstract

The utility model discloses a multi-point parallel synchronous drive device, which comprises a drive mechanism connected by transmission and several stages of driven mechanisms; the drive mechanism comprises a first power output end for rotatably connecting with a power output shaft; A second power output end below the power output end and parallel to the first power output end along the power output direction; several stages of the driven mechanisms are arranged at intervals along the power output direction, and the second power output end of the driving mechanism is connected to the adjacent slave mechanism. The power input end of the driven mechanism is connected along the power output direction, and the two adjacent driven mechanisms are connected with the power output along the power output direction; the driven mechanism of any stage includes a power for rotational connection with the power output shaft output. The device can achieve multi-point locking, significantly improve wind resistance, and greatly improve stability and reliability. In addition, the device can be applied to a solar tracking system, and the main shaft is used as the power output shaft to realize multi-point parallel synchronous driving of the main shaft.

Description

A multi-point parallel synchronous drive device

technical field

The utility model belongs to the technical field of transmission, in particular to a multi-point parallel synchronous drive device.

Background technique

In the existing mechanical transmission field, especially the driving and tracking system of the current common solar support, a single-point driving mechanism such as a reducer, a push rod, a linear actuator, etc. is generally used, so that the free driving point is formed in addition to the driving point. The long cantilever structure is prone to distortion of the free long cantilever in the case of strong winds. The longer the cantilever is, the more serious the distortion will be, resulting in the risk of damage to components and brackets. At the same time, the low natural frequency will also increase the risk of resonance. Specifically, in the single-axis tracking system, under the action of strong wind, the driving point of this driving mechanism is a fixed locking point, and other points are free moving parts. Since the distance from the driving point to the most edge of the system in a single solar tracking system is generally a dozen or even tens of meters in length, under the action of gusts, it is easy to generate risks such as deformation and resonance, so that it is impossible to achieve multi-point common during strong winds. Locking function, deformation and vibration of the system will cause damage to the system, and long-term operation will also cause risks such as cracking of the solar modules carried on it. Moreover, in current practical applications, a single solar tracking system can only satisfy three 1500V photovoltaic strings at most, which is very inconvenient for power station design.

Therefore, there is an urgent need for those skilled in the art to provide a multi-point parallel synchronous drive device capable of realizing multi-point locking, significantly improving wind resistance, and greatly improving stability and reliability.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies in the prior art, the utility model provides a multi-point parallel synchronous drive device capable of realizing multi-point locking, significantly improving wind resistance, and greatly improving stability and reliability. Compared with the single-point drive device commonly used at present, the device innovatively converts the vertical input and output of the traditional worm gear into two synchronous outputs parallel to the worm gear output, which effectively utilizes the large holding torque of the worm gear drive; and, Combined with the mechanical drive shaft, it realizes multi-point parallel synchronous drive to achieve stable locking in bad weather conditions.

In order to achieve the above purpose, a multi-point parallel synchronous drive device is provided, and the utility model adopts the following technical solutions:

A multi-point parallel synchronous drive device includes a drive mechanism connected by transmission and several stages of driven mechanisms;

The drive mechanism includes a first power output end for rotatably connecting with the power output shaft, and a second power output end disposed below the first power output end and parallel to the first power output end along the power output direction;

Several stages of the driven mechanisms are arranged at intervals along the power output direction, and the second power output end of the driving mechanism is connected with the power input end of the adjacent driven mechanism along the power output direction. The adjacent two-stage driven mechanisms The driven mechanism at any stage includes a power output end for rotational connection with the power output shaft.

Preferably, the drive mechanism includes a worm gear I and a transmission gear as the second power output end; the worm gear I include a worm I and a worm gear I as the first power output;

The transmission gear meshes with the lower side of the worm I, and the worm gear I meshes with the upper side of the worm I; and the end face of the transmission gear is parallel to the end face of the turbine wheel; the worm gear I is used to rotate and connect the power output shaft;

The driving mechanism is connected with the power input end of the driven mechanism in a power output direction through a transmission gear.

Further, a mechanical drive shaft is fixedly connected in the transmission gear, and the power output direction of the mechanical drive shaft and the first power output end are parallel to each other;

The drive mechanism is connected with the power input end of the adjacent driven mechanisms through a mechanical drive shaft, and the adjacent driven mechanisms are connected with each other through a mechanical drive shaft.

Further, the drive mechanism further includes a drive motor, and the output shaft of the drive motor is drivingly connected with the worm or with the mechanical drive shaft.

Further, two sides of the worm gear I along the power output direction are fixed with a worm gear casing I with mounting holes, and the mounting holes are used to rotatably pass through the power output shaft.

Further, the driven mechanism includes a worm gear transmission unit II and a connecting piece as a power input end; the worm gear and worm transmission unit II includes a worm gear II and a worm gear II as a power output end;

The connecting pieces are respectively connected with the mechanical drive shaft in the axial direction and with the worm II in the vertical direction, so as to transmit the axial rotation of the mechanical drive shaft to the worm; the worm wheel II is engaged with the upper side of the worm II; The worm gear II is rotatably connected to the power output shaft.

Further, two sides of the worm gear II along the power output direction are fixed with a worm gear housing II with mounting holes, and the mounting holes are used to rotatably pass through the power output shaft.

Further, the connector is a commutator or a universal joint.

Further, the multi-point parallel synchronous driving devices are arranged in parallel rows, and the worms of the adjacent two rows of driving devices are respectively connected by corresponding transmission.

Further, the multi-point parallel synchronous drive device is set as multiple groups in series, and the transmission gears and connecting pieces in the series of multiple groups of the multi-point parallel synchronous drive device are all connected by a mechanical drive shaft, or by a plurality of The mechanical drive shafts are connected, and a plurality of mechanical drive shafts are connected in rotation from end to end; the number of the drive motors is set to one, and a controller is correspondingly provided, and the controller is electrically connected to the drive motors.

Preferably, the driven mechanisms in several stages are evenly spaced on one side or both sides of the driving mechanism.

The above-mentioned multi-point parallel synchronous driving device of the present invention can be applied to a solar tracking system, and the main shaft is used as the power output shaft. Multiple fixed point locking to adapt to bad weather, improve its running performance and service life.

Compared with the prior art, the beneficial effects of the present utility model are:

1) The multi-point parallel synchronous driving device of the present utility model cooperates with the driving mechanism and the driven mechanism, and is synchronously connected through the mechanical driving shaft. The driving mechanism divides the power into two parallel outputs, one is output to the power output shaft, and the other is output. The adjacent driven mechanism is driven by the mechanical drive shaft, and the driven mechanism should drive the adjacent driven mechanism to synchronously drive along the power transmission direction, so that the power output ends of several stages of driven mechanisms can work together in specific applications. On the power output shaft, a multi-point driving power output shaft is formed to rotate synchronously.

2) Both the drive mechanism and the driven mechanism of the present utility model adopt a worm gear and worm drive structure, which converts the vertical input and output of the worm gear and worm into two synchronous outputs parallel to the worm gear output, while retaining the large holding torque of the worm gear and worm structure. The mechanical drive shaft realizes multi-point parallel synchronous drive, which can achieve a stable and reliable locking effect on the power output shaft under strong wind conditions. In addition, the design of the two-way parallel drive only needs to be arranged in the space of the original power output shaft, and does not need to occupy a larger space, and the installation, layout and maintenance are more convenient.

3) The device of the utility model is applied in the solar tracking system with excellent effect. When encountering a strong wind, the multiple driving points of the system become multiple fixed locking points, correspondingly, the jitter of the system is greatly reduced, the stability, The reliability has been greatly improved, so that the wind pressure and wind twist can be dispersed, and the reliability and stability of the system work can be greatly improved. In addition, the two-way power of the driving mechanism is output in parallel along the main axis direction, which makes the operation and maintenance of the device in the north-south direction convenient when it is applied to the solar tracking system, and can effectively reduce the shielding of the solar modules, especially the double-sided modules, by the transmission components, which makes the system design more convenient. more flexible.

4) When the device of the present invention is applied to a solar tracking system, the multi-point parallel synchronous driving devices are arranged at intervals according to the size of the photovoltaic string that actually needs to be carried, and the distance from each driving device to the edge of the corresponding carrying system does not exceed 10 meters, Therefore, in the case of strong wind, the deformation of the system is greatly reduced, the force is reduced, the torque is reduced, and the corresponding system cost is also greatly reduced.

5) In the prior art, a single set of solar tracking system can only satisfy three 1500V photovoltaic strings at most, but the single set of solar tracking system using the multi-point parallel synchronous drive device of the present utility model can realize the installation of four or more 1500V photovoltaic strings Strings (a single 1500V PV string generally has 30 modules), with excellent bearing performance, and can ensure the stability of system operation in extreme weather, especially strong wind conditions. Wherein, the single set of solar tracking system mentioned in the present invention refers to a system that can only satisfy at most three 1500V photovoltaic strings on a single row of main shafts.

6) The single set of solar tracking system utilizing the multi-point parallel synchronous drive device of the present invention only needs to be provided with a drive motor and a controller, and all worm gears, transmission gears, and connectors are Installation, operation and maintenance costs.

7) In the cooperative design of the driving mechanism and the driven mechanism of the present invention, by connecting the worms of the adjacent two rows of driving devices, it can also be applied to synchronously drive multiple rows of power output shafts at the same time, so that it can be adapted to multiple platforms. The solar energy tracking system is the drive of the east-west multi-row solar energy tracking system, which realizes the synchronous linkage of the multi-platform solar energy tracking system, so that the technology of the utility model has a wider application range and stronger applicability.

Description of drawings

FIG. 1 is a schematic structural diagram of a multi-point parallel synchronous drive device of the present invention.

FIG. 2 is a schematic diagram of the system structure of applying the multi-point parallel synchronous driving device of the present invention to a solar tracking system.

FIG. 3 is an enlarged view of the structure at A in FIG. 2 .

FIG. 4 is an enlarged view of the structure at B in FIG. 2 .

Fig. 5a and Fig. 5b are enlarged views of the structure at the upright column that provides support for the main shaft alone.

The meanings of the symbols in the figure are as follows:

1- Drive mechanism, 10- Worm gear transmission unit I, 100- Worm I, 101- Worm gear housing I, 102- Support seat, 11- Transmission gear;

2- driven mechanism; 20- worm gear transmission unit II, 200- worm II, 201- worm gear housing II, 21- connecting piece;

3- PTO shaft/spindle, 30- bearing race;

4-Mechanical drive shaft;

5-column, 50-installation side plate, 51-drive shaft seat, 52-column top seat, C-up and down adjustable row hole III, D-fixed hole III;

6- Solar modules.

Detailed ways

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementations of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts. Obtain other implementations.

In order to make the drawings concise, only the parts related to the present invention are schematically shown in each drawing, and they do not represent the actual structure of the product.

Example 1

As shown in FIG. 1 , it is a multi-point parallel synchronous drive device, including a drive mechanism 1 and several stages of driven mechanisms 2 connected in a transmission;

The drive mechanism 1 includes a first power output end for rotatably connecting with the power output shaft 3, which is arranged below the first power output end and is parallel to the first power output end along the power output direction, that is, the axial direction of the power output shaft. the second power output terminal;

Several stages of the driven mechanism 2 are arranged at intervals along the power output direction, and the second power output end of the driving mechanism 1 is connected to the power input end of the adjacent driven mechanism 2 along the power output direction. The driven mechanisms are connected in a drive along the power output direction; the driven mechanism 2 at any stage includes a power output end for rotational connection with the power output shaft 3 .

In this embodiment, when the driving mechanism 1 and the driven mechanism 2 are both rotatably connected to the power output shaft 3, the driving mechanism 1 outputs the power to the power output shaft 3 in the axial direction through the first and second power output ends respectively. , Adjacent driven mechanism 2, the driven mechanism 2 correspondingly drives the adjacent driven mechanism 2 to synchronously transmit axially, so that the power output ends of several stages of the driven mechanism 2 can act together on the power output shaft, forming a multi-stage driven mechanism. The point-driven power output shaft rotates synchronously, so that the driving mechanism 1 and the driven mechanism 2 are driven and cooperated to realize multi-point parallel synchronous driving and rotation of the power output shaft.

As a preferred embodiment, the driven mechanisms 2 described in several stages are evenly spaced on one side or both sides of the driving mechanism 1 . Therefore, the stability and reliability of the multi-point parallel synchronous driving of the power output shaft 3 can be further improved.

Example 2

As shown in FIG. 1 , it is a multi-point parallel synchronous drive device for a solar tracking system, including a drive mechanism 1 and several stages of driven mechanisms 2 connected in a transmission;

The drive mechanism 1 includes a first power output end for rotatably connecting with the power output shaft 3, which is arranged below the first power output end and is parallel to the first power output end along the power output direction, that is, the axial direction of the power output shaft. the second power output terminal;

The drive mechanism includes a worm gear I10 and a transmission gear 11 as the second power output end; the worm gear I10 includes a worm I100 and a worm gear I as the first power output (the worm gear in the figure is located in the worm gear housing, Therefore, it is not shown visually); the transmission gear 11 meshes with the lower side of the worm I100, and the worm gear I meshes with the upper side of the worm I100; and the end face of the transmission gear 11 is parallel to the end face of the worm gear I; the Worm gear I is used to connect the power output shaft in rotation;

Several stages of the driven mechanism 2 are arranged at intervals along the power output direction. The drive mechanism 1 is connected to the power input end of the adjacent driven mechanism 2 through the transmission gear 11 along the power output direction. The adjacent two-stage driven mechanism The mechanisms 2 are connected in a drive along the power output direction; the driven mechanism 2 at any stage includes a power output end for rotational connection with the power output shaft 3 .

In this embodiment, the drive mechanism 1 adopts a worm gear transmission unit, which outputs the power to the power output shaft 3 and the adjacent driven mechanism 2 through the worm gear I and the transmission gear 11 in the axial direction respectively, and then drives the adjacent driven mechanism accordingly. The drive mechanism 2 is axially driven, so that the power output ends of the driven mechanisms 2 of several stages act together on the power output shaft 3 to form a multi-point drive for the synchronous rotation of the power output shaft. In the traditional worm gear transmission mechanism, the input shaft and the output shaft are in a vertical relationship, and this embodiment converts the vertical input and output of the worm gear into two synchronous outputs parallel to the worm gear output, while retaining the large holding torque of the worm gear structure, The locking effect of the power take-off shaft can be achieved in strong wind conditions.

As a preferred embodiment, a mechanical drive shaft 4 is fixedly connected to the transmission gear 11, and the mechanical drive shaft 4 is on the lower side of the first power output end and parallel to its power output direction; the drive mechanism 1 is driven by a mechanical The drive shaft 4 is in driving connection with the power input end of the driven mechanism 2 ; Therefore, the synchronous transmission between the drive mechanism 1 and the several-stage driven mechanisms 2 is realized through the mechanical drive shaft 4, and the drive mechanism 1 outputs the power to the power output shaft 3 along the axial direction through the worm gear I and the transmission gear 11, and the mechanical drive Shaft 4, the mechanical drive shaft 4 drives the adjacent driven mechanism 2, and then drives the adjacent driven mechanism 2 for axial transmission, so that the power output ends of several stages of the driven mechanism 2 act together on the power output shaft 3 to form The multi-point drive power output shaft 3 rotates synchronously. When connecting the power output shaft 3 in practical application, on the basis of using the large torque of the worm gear transmission, because the mechanical drive shaft 4 and the power output shaft 3 are designed to be two parallel synchronous outputs, it is only necessary to do it in the space of the original power output shaft. It does not need to occupy more space, and the installation, layout and maintenance are more convenient.

On the basis of this preferred example, the drive mechanism 1 further includes a drive motor, and the output shaft of the drive motor is drivingly connected to the worm I100, so that the motor drives the worm I100 to drive the worm gear I to rotate, and drive the transmission gear 11 to rotate; The output shaft of the drive motor is drivingly connected with the mechanical drive shaft 4, so that the motor drives the mechanical drive shaft 4 to drive the transmission gear 11 to rotate, thereby driving the worm I100 and the worm wheel I to rotate. Therefore, the arrangement of the driving motor is more flexible and convenient.

More preferably, the driven mechanism 2 includes a worm gear unit II 20 and a connecting piece 21 as a power input end; the worm gear and worm drive unit II 20 includes a worm gear II 200 and a worm gear II as the power output end (the worm gear in the figure is located in the worm gear housing. so it is not shown directly); the connecting pieces 21 are respectively connected with the mechanical drive shaft 4 in the axial direction and with the worm II 200 in the vertical direction, so as to transmit the axial rotation of the mechanical drive shaft 4 to the worm II 200; The worm gear II is engaged with the upper side of the worm II 200 ; and the worm gear II is used to rotate the power output shaft 3 .

Therefore, this solution provides a preferred setting form of the driven mechanism 2, which also uses the worm gear and worm drive unit, and the driving mechanism 1 outputs the power to the power output shaft 3 and the mechanical drive shaft 4 in parallel in the axial direction through the worm gear I and the transmission gear 11 respectively. , the adjacent driven mechanisms 2 are synchronously driven by the mechanical drive shaft 4 for axial transmission, so that the power output ends of the driven mechanisms 2 of several stages can act together on the power output shaft 3, forming a multi-point driving power output shaft synchronously rotating. It can effectively improve the stability of the device to the synchronous drive of the power output shaft.

More preferably, the multi-point parallel synchronous drive device is set as multiple groups in series, and the transmission gears and the connecting parts in the series of multiple groups of the multi-point parallel synchronous drive device are connected by a mechanical drive shaft, or the transmission gear. , The connecting piece can also be connected by a plurality of mechanical drive shafts, and the head and tail of the plurality of mechanical drive shafts are connected by a universal joint, which can adapt to different terrains; the number of the drive motors is set to 1, and a controller is set accordingly. , the controller is electrically connected with the drive motor. With this preferred solution, when multiple sets of multi-point parallel synchronous drive devices need to be used for linkage, only one drive motor and a corresponding controller (the drive motor and the controller can be supported and fixed by relying on the column 5) only need to be set. The controller adopts a single-chip microcomputer, and the single-chip microcomputer is electrically connected to the drive motor, and all the transmission gears and the connecting pieces in the multi-group multi-point parallel synchronous drive device (including the transmission gear and the adjacent connecting pieces and the adjacent connecting pieces between them) are connected by a mechanical drive shaft, or the transmission gears and connectors can also be connected by multiple mechanical drive shafts, and the head and tail of multiple mechanical drive shafts are connected by universal joints, which can adapt to different terrains and drive synchronously. , reducing installation, operation and maintenance costs. In addition, the electrical connection between the drive motor and the controller mentioned above is set as a conventional technical means in the field, and the model of the single-chip microcomputer is STM32 series, or other commercially available models can also be used, which can realize the transmission of command signals to the drive motor. The function is sufficient, and no further detailed description will be given here.

More preferably, the multi-point parallel synchronous drive device can be set as multiple parallel rows as required, and the worms of the adjacent two rows of drive devices are respectively connected by transmission. Specifically, the worm I100 in the first row of drive devices is drivingly connected with the worm I100 in the second row up to the nth row of drive devices, and several stages of worms II200 in the first row of drive devices are connected with the second row up to the nth row. Several stages of worms II 200 in the driving device are connected in one-to-one correspondence. In practical applications, the transmission connection is realized through the transmission shaft, so as to realize the synchronous linkage of multiple rows of driving devices.

In the cooperative design of the driving mechanism and the driven mechanism of the utility model, by connecting the worms of the adjacent two rows of driving devices, it can also be applied to synchronously drive multiple rows of main shafts at the same time, so as to adapt to the multi-platform solar tracking system. The drive of the east-west multi-row solar tracking system realizes the synchronous linkage of the multi-platform solar energy tracking system, so that the application range of the technology of the utility model is wider and the applicability is stronger.

More preferably, two sides of the worm gear II along the power output direction are fixed with a worm gear housing II 201 with mounting holes, and the mounting holes are used for rotatably passing the power output shaft 3 . Thus, the installation of the power take-off shaft 3 is facilitated. More preferably, the connecting member 21 is a commutator or a universal joint, or an existing component or assembly that can realize the function of reversing and transmitting power. As shown in FIG. 4 , the connecting member 21 is a commutator, and the mechanical drive shaft 4 passes through the commutator. The commutator is preferably a gear commutator, which can synchronously transmit the power of the mechanical drive shaft to the worm II200 of the driven mechanism. The working principle of the gear commutator here is the prior art, and will not be repeated in detail. .

In this preferred example, a preferred setting form of the driven mechanism 5 is provided, and the axial power from the mechanical drive shaft 4 is transmitted to the worm gear transmission unit II 20 through reversal through the connecting piece 21 that can realize the function of reversing and transmitting power, so as to The synchronous rotation of the power output shaft 3 and the worm gear II is realized.

As another preferred embodiment, two sides of the worm gear I along the power output direction are fixed with worm gear housings I101 with mounting holes, and the mounting holes are used for rotationally connecting the power output shaft 3 . Thus, the installation of the power take-off shaft 3 is facilitated.

On the basis of the above embodiment, the specific application of applying the technical solution of the multi-point parallel synchronous drive device of the present invention to the solar tracking system is also given, and the obtained application performance is extremely excellent, such as the following application examples 1- 3.

Application example 1

As shown in FIGS. 1 to 4 , the multi-point parallel synchronous driving device of Examples 1 to 3 is applied to the solar tracking system, and the multi-point parallel synchronous driving solar tracking system of this example is obtained. specific:

The multi-point parallel synchronous driving solar tracking system includes a main shaft 3 and a plurality of uprights 5 for supporting the main shaft 3, and the main shaft 3 is used for fixing the solar modules 6;

It also includes a multi-point parallel synchronous drive device arranged on the main shaft 3, and the multi-point parallel synchronous drive device includes a drive mechanism 1 and several stages of driven mechanisms 2 that are connected by transmission;

The first power output end of the drive mechanism 1 is rotatably connected with the main shaft 3, and the main shaft 3 is used as the power output shaft 3; ;

Several stages of the driven mechanisms 2 are arranged at intervals along the main shaft 3, the second power output end of the drive mechanism 1 is connected to the power input end of the adjacent driven mechanism 2 along the axial drive, and the adjacent two-stage driven mechanism 2 are connected in an axial drive; the power output end of any one of the driven mechanisms 2 is rotatably connected with the main shaft 3;

Therefore, the driving mechanism 1 and the driven mechanisms 2 of several stages are driven and cooperated to realize the multi-point parallel synchronous driving and rotation of the main shaft 3 .

In this application example, the driving mechanism 1 outputs power to the main shaft 3 and the adjacent driven mechanism 2 through the first and second power output ends respectively in the axial direction, and the driven mechanism 2 drives the adjacent driven mechanism 2 accordingly. Axial transmission, so that the power output ends of the driven mechanisms 2 of several stages act together on the main shaft 3 to form a multi-point drive to drive the main shaft 3 to rotate synchronously. Applying this technical solution, when the strong wind comes, the multiple driving points of the system become multiple fixed locking points, correspondingly, the jitter of the system is greatly reduced, and the stability and reliability are greatly improved, so that the distributed wind pressure can be realized. , wind twist, greatly improve the reliability and stability of the system work. In addition, the two powers of the drive mechanism 1 are output in parallel along the direction of the main shaft 3, which makes the operation and maintenance of the system in the north-south direction convenient. In addition, the multi-point parallel synchronous drive devices are arranged at intervals according to the actual size of the PV strings to be carried, and the distance from each drive device to the edge of the corresponding carrying system does not exceed 10 meters. Therefore, the deformation of the system is greatly reduced in the case of strong winds. , the force is reduced, the torque is reduced, and the corresponding system cost is greatly reduced. In practical applications, the multi-point parallel synchronous drive device includes a drive mechanism 1 and a 2-stage driven mechanism 2 that are drive-connected. Each system is driven by a multi-point parallel synchronous drive device, which can be used in extreme weather (especially strong wind) conditions. , to ensure the stability of the system operation; a single system can realize the installation of 4 or more 1500V photovoltaic strings (a single 1500V photovoltaic string generally has 30 components).

As a preferred application example, the driven mechanisms 2 are evenly distributed on one side or both sides of the driving mechanism 1 . Thus, the stability and reliability of the multi-point parallel synchronous driving of the main shaft 3 can be further improved.

Application example 2

As shown in Figures 1 to 4, it is a multi-point parallel synchronous driving solar tracking system, including a main shaft 3 and a plurality of columns 5 for supporting the main shaft 3, and the main shaft 3 is used for fixing the solar modules 6;

It also includes a multi-point parallel synchronous drive device arranged on the main shaft 3, and the multi-point parallel synchronous drive device includes a drive mechanism 1 and several stages of driven mechanisms 2 that are connected by transmission;

The first power output end of the driving mechanism 1 is rotatably connected with the main shaft 3, and the main shaft 3 is used as the power output shaft 3; the second power output end of the driving mechanism 1 is arranged below the main shaft 3 and is axially parallel to the main shaft 3;

The drive mechanism 1 includes a worm gear I10 fixed on the column 5 and a transmission gear 11 as the second power output end; the worm gear I10 includes a worm I100 and a worm gear I as the first power output end; the transmission gear 11 meshes with the lower side of the worm I100, the worm gear I meshes with the upper side of the worm I100; and the end face of the transmission gear 11 is parallel to the end face of the worm gear I; the worm gear I is sleeved on the main shaft 3 and the main shaft 3 rotating connection;

Several stages of the driven mechanisms 2 are arranged at intervals along the main shaft 3, and the driving mechanism 1 is axially connected to the power input end of the adjacent driven mechanism 2 through the transmission gear 11; and the adjacent two-stage driven mechanisms 2 Axial drive connection between them; the power output end of any one of the driven mechanisms 2 is rotatably connected with the main shaft 3;

Therefore, the driving mechanism 1 and the driven mechanisms 2 of several stages are driven and cooperated to realize the multi-point parallel synchronous driving and rotation of the main shaft 3 .

In this application example, the drive mechanism 1 adopts a worm gear and worm drive structure, and the power is output to the main shaft 3 and the adjacent driven mechanism 2 through the worm gear I and the transmission gear 11 in the axial direction respectively, and then drives the adjacent driven mechanism accordingly. 2. Axial transmission, so that the power output ends of the driven mechanisms 2 of several stages act together on the main shaft 3 to form a multi-point drive for the synchronous rotation of the main shaft 3. In the traditional worm gear transmission mechanism, the input shaft and the output shaft are in a vertical relationship, but this application example converts the vertical input and output of the worm gear into two synchronous outputs parallel to the output of the worm gear, while retaining the large holding torque of the worm gear structure, The main shaft 3 can be locked under strong wind conditions. In addition, the parallel drive of this application example can effectively reduce the shielding of the solar modules, especially the bifacial modules, by the transmission components, making the system design more flexible.

In the above application example, the transmission gear 11 is fixedly connected with a mechanical drive shaft 4, the mechanical drive shaft 4 is rotatably fixed between the column 5 and the worm gear unit along with the transmission gear 11, and the mechanical drive shaft 4 and the main shaft 1 are parallel to each other; the drive mechanism 1 is connected to the power input end of the adjacent driven mechanism 2 through a mechanical drive shaft 4, and the adjacent driven mechanisms 2 are connected through a mechanical drive shaft 4. Therefore, the synchronous transmission between the driving mechanism 1 and the driven mechanism 2 is realized through the mechanical driving shaft 4, and the driving mechanism 1 outputs the power to the main shaft 3 and the mechanical driving shaft 4 in the axial direction through the worm gear I and the transmission gear 11 respectively. The drive shaft 4 drives the adjacent driven mechanism 2, and then drives the adjacent driven mechanism 2 for axial transmission, so that the power output ends of the driven mechanisms 2 of several stages act together on the main shaft 3 to form a multi-point drive for the main shaft 3 to rotate synchronously cooperation. On the basis of the large torque driven by the worm gear, due to the design of two parallel synchronous outputs of the mechanical drive shaft 4 and the main shaft 3, the mechanical drive shaft 4 is arranged in parallel in the space between the bottom of the main shaft 3 and the top of the column 5, Make full use of the space, and only need to avoid the main shaft for the shielding of double-sided components, which makes the system layout more convenient.

As a preferred application example, the drive mechanism 1 further includes a drive motor, and the output shaft of the drive motor is drivingly connected to the worm I100, so that the motor drives the worm I100 to drive the worm gear I to rotate and drive the transmission gear 11 to rotate; or the drive The output shaft of the motor is drivingly connected with the mechanical drive shaft 4, so that the motor drives the mechanical drive shaft 4 to drive the transmission gear 11 to rotate, and drives the worm I100 and the worm wheel I to rotate. Therefore, the arrangement of the driving motor is more flexible and convenient.

As another preferred application example, worm gear housings I101 with mounting holes are fixed on both sides of the worm gear I along the length direction of the main shaft 3, and the main shaft 3 is rotatably penetrated in the mounting holes; the worm gear housings I101 and The column 5 is fixedly connected. More preferably, a pair of installation side plates 50 are detachably arranged on both sides of the column 5 along the direction perpendicular to the main shaft 3; the worm gear housing I101 is fixed on the pair of installation side plates 50 through the support seat 102; A drive shaft seat 51 is arranged between the bottom of the worm gear housing I101 and the top of the column 5 for rotatably installing the mechanical drive shaft 4 ; and the drive shaft seat 51 is fixed between the pair of installation side plates 50 .

The worm gear I in the worm gear and worm drive unit I10 of this application example is rotatably set inside the main shaft 3, and is connected to the column 5 through the worm gear casing I101 to be fixed, so that when the worm gear I rotates, it drives the main shaft 3 to a fixed point accordingly. Tracking and rotation; the fixed support for the main shaft 3 and the drive mechanism 1 is realized through the upright column 5 . Furthermore, by arranging the drive shaft seat 51 in the space between the main shaft 3 and the upright post 5 by relying on the upright post 5 , the arrangement is flexible and compact, and does not interfere with the solar installation components.

As another preferred application example, the driven mechanism 2 includes a worm gear II 20 and a connecting member 21 as a power input end; the worm gear transmission unit includes a worm II 200 and a worm gear II as a power output end; the connecting members 21 are respectively It is axially connected with the mechanical drive shaft 4 and vertically connected with the worm II 200 for transmitting the axial rotation of the mechanical drive shaft 4 to the worm II 200; the worm wheel II is engaged with the upper side of the worm II 200; and the worm wheel II is sleeved on the main shaft 3 and connected with the main shaft 3 in rotation.

This application example provides the preferred setting form of the driven mechanism 2, which also uses the worm gear transmission structure. The driving mechanism outputs the power to the main shaft 3, the mechanical drive shaft 4, and the mechanical drive shaft through the worm gear I and the transmission gear 11 in the axial direction respectively. 4. The axial rotation is transmitted to the connecting piece 21 and then to the worm II 200, so that the adjacent driven mechanisms 2 are driven synchronously axially through the mechanical drive shaft 4, so that the power output ends of the driven mechanisms 2 of several stages work together. On the main shaft 3, a multi-point driving main shaft 3 is formed to rotate synchronously. In practical applications, the multi-point parallel synchronous drive device includes a drive mechanism 1 and a 2-stage driven mechanism 2 that are drive-connected. Each system is driven by a multi-point parallel synchronous drive device, which can be used in extreme weather (especially strong wind) conditions. , to ensure the stability of the system operation; a single system can realize the installation of 4 or more 1500V photovoltaic strings (a single 1500V photovoltaic string generally has 30 components).

More preferably, the multi-point parallel synchronous drive device is set as multiple groups in series, and the transmission gear 11 and the connecting piece 21 in the series of multiple groups of the multi-point parallel synchronous drive device are connected by a mechanical drive shaft 4, Alternatively, the transmission gear and the connecting piece can also be connected by a plurality of mechanical drive shafts, and the head and tail of the plurality of mechanical drive shafts are connected by universal joints, which can adapt to different terrains; the number of the drive motors is set to 1, and the corresponding settings a controller electrically connected to the drive motor. With this preferred solution, only one drive motor and controller need be provided for a single system (the drive motor and the controller can be supported and fixed by relying on the column 5), and the controller adopts a single-chip microcomputer, and the single-chip microcomputer is electrically connected to the drive motor. All transmission gears and connecting parts (including between transmission gears and adjacent connecting parts and between two adjacent connecting parts) in multiple sets of multi-point parallel synchronous drive devices are connected by a mechanical drive shaft, or drive Gears and connectors can also be connected by multiple mechanical drive shafts, and the head and tail of multiple mechanical drive shafts are connected by universal joints, which can adapt to different terrains, drive synchronously, and reduce installation, operation and maintenance costs. In addition, the electrical connection between the drive motor and the controller mentioned above is set as a conventional technical means in the field, and the model of the single-chip microcomputer is STM32 series, or other commercially available models can also be used, which can realize the transmission of command signals to the drive motor. The function is sufficient, and no further detailed description will be given here.

More preferably, the main shafts 3 are arranged in multiple rows, and the corresponding columns 5 are also arranged in parallel rows; the worms on the adjacent two rows of main shafts 3 are respectively connected by corresponding transmissions, so as to realize multi-row synchronization of the photovoltaic tracking system. linkage. Specifically, the worms I100 in the first row of main shafts 3 are drivingly connected with the worms I100 in the second row up to the nth row of main shafts 3, and several stages of worms II200 in the first row of main shafts 3 are connected with the second row up to the nth row. Several stages of worms II 200 in the main shaft 3 are connected in one-to-one correspondence. In practical applications, the transmission connection is realized through the transmission shaft, so as to realize the synchronous linkage of multiple rows.

The matching form of the driving mechanism and the driven mechanism of the utility model can also be adapted to the multi-platform tracking system (that is, the driving of the east-west multi-row tracking system). The synchronous linkage of the tracking system makes the technical application scope of the utility model wider and the applicability stronger.

More preferably, a worm gear housing II 201 with a mounting hole is fixed on both sides of the worm gear II along the length direction of the main shaft, and the main shaft 3 is rotatably inserted in the mounting hole; the top of the column 5 and the column top seat 52 Removable connection; the column top seat 52 is set as a U-shaped bending part; the connecting piece 21 is placed in the column top seat 52 and passes through the column 5 and the column top seat 52 in turn along both sides perpendicular to the direction of the main shaft 3 The mounting holes on the vertical surface are detachably connected; the worm gear housing II 201 is fixed on the horizontal surface of the column top seat 52 . More specifically, several rows of adjustment holes II are arranged on the top of the column 5, the top seat of the column is set as a U-shaped bending part, and a pair of fixing holes II are oppositely arranged on the two vertical surfaces of the top seat of the column; The connecting piece 21 is placed in the column top seat 52 and passes through the adjustment hole II and the fixing hole II in turn to achieve a height-adjustable detachable connection with the column 5 and the column top seat 52 .

This preferred example provides a fixed connection method between the worm gear and worm drive unit II20 in the driven mechanism 2 and the column 5, and the matching connection between the mechanical drive shaft 4 and the worm gear and worm drive unit II20. The structure is compact, and the vertical column realizes the connection between the main shaft and the main shaft. The fixed support of the driven mechanism makes the mechanical drive shaft 4 rotate steadily and maintain a constant parallel driving relationship with the main shaft 3 .

More preferably, the connecting member 21 is a commutator or a universal joint, or an existing component or assembly that can realize the function of reversing and transmitting power. As shown in FIG. 4 , the connecting member 21 is a commutator, and the mechanical drive shaft 4 passes through the commutator. The commutator is preferably a gear commutator, which can synchronously transmit the power of the mechanical drive shaft to the worm II200 of the driven mechanism. The working principle of the gear commutator here is the prior art, and will not be repeated in detail. .

In this preferred example, a preferred setting form of the driven mechanism 2 is provided, and the axial power from the mechanical drive shaft 4 is transmitted to the worm gear transmission unit II 20 through reversal through the connecting piece 21 that can realize the function of reversing and transmitting power, so as to The synchronous rotation of the main shaft 3 and the worm gear II is realized.

Application example 3

In this application example, on the basis of application example 1 or 2, it should be noted that in addition to the upright column 5 that supports the main shaft 3, the driving mechanism 1 and the driven mechanism 2 synchronously, other upright columns that independently provide support for the main shaft can also be provided 5. As shown in Figures 5a and 5b, the top of the column 5 is fixedly connected to the column top seat 52; the main shaft 3 is passed through the bearing, and the bearing is installed in the bearing seat ring 30; the column top seat 52 is connected with The bearing races 30 are fixedly connected to directly rotatably support the main shaft 3 . In practical application, the top of the column 5 is provided with up and down adjustable row holes IIIC, the column top seat 51 is set as a U-shaped bending part, and a set of fixed holes IIID are oppositely arranged on the two vertical surfaces of the column top seat 51 ; Through the cooperation of the upper and lower adjustable row holes IIIC and the set of fixed holes IIID, the relative height of the column 5 and the column top seat 52 can be adjusted.

Therefore, the column 5 in the present invention can be applied to different fixing scenarios, supporting and fixing the main shaft 3 , the driving mechanism 1 , and the driven mechanism 2 , and connecting with the foundation or directly serving as the foundation to support the main shaft 1 . In practical applications, the bearing is preferably a polymer bearing.

In addition, the multi-point parallel synchronous drive device of the present invention can also be applied to other suitable working scenarios, not only the solar tracking system.

It should be noted that the above application examples can be freely combined as required. The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (10)

1. a multi-point parallel synchronous drive is characterized in that: Including the drive mechanism of the transmission connection and several stages of the driven mechanism; The drive mechanism includes a first power output end for rotatably connecting with the power output shaft, and a second power output end disposed below the first power output end and parallel to the first power output end along the power output direction; Several stages of the driven mechanisms are arranged at intervals along the power output direction, and the second power output end of the driving mechanism is connected with the power input end of the adjacent driven mechanism along the power output direction. The adjacent two-stage driven mechanisms The driven mechanism at any stage includes a power output end for rotational connection with the power output shaft. 2. The multi-point parallel synchronous drive device according to claim 1, wherein: The drive mechanism includes a worm gear transmission unit I and a transmission gear as the second power output end; the worm gear and worm transmission unit I includes a worm I and a worm gear I as the first power output end; The transmission gear meshes with the lower side of the worm I, and the worm gear I meshes with the upper side of the worm I; and the end face of the transmission gear is parallel to the end face of the turbine wheel; the worm gear I is used to rotate and connect the power output shaft; The drive mechanism is connected to the power input end of the driven mechanism in a power output direction through a transmission gear. 3. The multi-point parallel synchronous drive device according to claim 2, wherein: A mechanical drive shaft is fixedly connected in the transmission gear, and the mechanical drive shaft and the power output direction of the first power output end are parallel to each other; The drive mechanism is connected with the power input end of the adjacent driven mechanisms through a mechanical drive shaft, and the adjacent driven mechanisms are connected with each other through a mechanical drive shaft. 4. The multi-point parallel synchronous drive device according to claim 3, wherein: The drive mechanism further includes a drive motor, the output shaft of which is drivingly connected with the worm or with the mechanical drive shaft. 5. The multi-point parallel synchronous drive device according to claim 2, wherein: Two sides of the worm gear I along the power output direction are fixed with a worm gear casing I with mounting holes, and the mounting holes are used for rotatably passing through the power output shaft. 6. The multi-point parallel synchronous drive device according to claim 4, wherein: The driven mechanism includes a worm gear transmission unit II and a connector serving as a power input end; the worm gear and worm transmission unit II includes a worm screw II and a worm gear II as a power output end; The connecting pieces are respectively connected with the mechanical drive shaft in the axial direction and with the worm II in the vertical direction, so as to transmit the axial rotation of the mechanical drive shaft to the worm; the worm wheel II is engaged with the upper side of the worm II; The worm gear II is rotatably connected to the power output shaft. 7. The multi-point parallel synchronous drive device according to claim 6, wherein: Two sides of the worm gear II along the power output direction are fixed with a worm gear housing II with mounting holes, and the mounting holes are used for rotatably passing through the power output shaft; and/or, The connecting piece is a commutator or a universal joint. 8. The multi-point parallel synchronous drive device according to claim 6, wherein: The multi-point parallel synchronous drive device is set as multiple groups in series, and the transmission gears and connectors in the series of multiple groups of the multi-point parallel synchronous drive device are all connected by a mechanical drive shaft, or by a plurality of mechanical drive shafts. A plurality of mechanical drive shafts are connected in a head-to-tail rotation; the number of the drive motors is set to one, and a controller is correspondingly provided, and the controller is electrically connected to the drive motor. 9. The multi-point parallel synchronous drive device according to claim 6, wherein: The multi-point parallel synchronous driving devices are arranged in parallel rows, and the worms of the adjacent two rows of driving devices are respectively connected by corresponding transmission. 10. The multi-point parallel synchronous drive device according to claim 1, wherein: The driven mechanisms described in several stages are evenly spaced on one or both sides of the driving mechanism.

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