A slewing reducer for a photovoltaic tracking bracket

Abstract

The present invention discloses a rotary speed reducer for a photovoltaic tracking bracket, which relates to the technical field of rotary speed reducers and includes a bearing base and a moving guide groove opened at the central position inside the bearing base; a photovoltaic bracket is arranged above the bearing base; further included are: a positioning mechanism is arranged in the moving guide groove inside the bearing base, and the positioning mechanism includes a positioning gear ring; among them, a speed reduction mechanism is arranged at the rear of the top surface of the bearing base, and the speed reduction mechanism includes a speed reducer body, and a driving motor is fixedly arranged at the top end of the speed reducer body. For this rotary speed reducer for a photovoltaic tracking bracket, the first speed reduction mechanism, the second speed reduction mechanism and the third speed reduction mechanism inside the speed reducer body are used to reduce the speed of the positioning gear, and the positioning mechanism improves the stability of the speed reducer body during rotation, so that the photovoltaic bracket on the top surface driven by the bearing top plate rotates together with the photovoltaic panel body to track the light.

Description

Technical Field

[0001] The present invention relates to the technical field of slewing speed reducers, and particularly to a slewing speed reducer for a photovoltaic tracking bracket. Background Art

[0002] A slewing speed reducer is a mechanical device that converts the output of a high-speed rotating motor into a low-speed and high-torque rotating power. It mainly consists of components such as a rotating arm, an eccentric shaft, a gear pair, and bearings. It adopts a planetary gear transmission system, which can achieve the conversion of high-speed rotation and low-speed high torque, and has high precision and stability. The slewing speed reducer can accurately adjust the receiving angle of solar panels in a photovoltaic power generation system to ensure that the panels are always at the best receiving angle, thereby improving the power generation efficiency.

[0003] The bidirectional output slewing speed reducer and photovoltaic tracking system disclosed in the utility model with the publication number of CN219554754U constitute power transmission between the motor and the worm by setting a transmission shaft, and the transmission shaft and the worm adopt cylindrical gear meshing transmission. The two cylindrical gears are arranged in parallel, with less demand for the placement space, thereby reducing the overall volume of the box body. And in this transmission mode, the motor is close to the middle of the box body. Thus, when using the slewing speed reducer of this application to drive the photovoltaic panel, the photovoltaic panel is not easily interfered with by the box body or the motor, and has a large rotation range.

[0004] An auxiliary slewing speed reducer for a photovoltaic bracket disclosed in the invention with the publication number of CN113794324A divides the output shaft into an output outer shaft and an output inner shaft, and controls the torque transmission between the output outer shaft and the output inner shaft through a torque limiting mechanism. When the input shaft of the auxiliary slewing speed reducer stops working and the torque of the main-side photovoltaic panel main shaft driving the input inner shaft to rotate is greater than the preset value, the output outer shaft and the output inner shaft can be directly disengaged, enabling the input inner shaft to rotate independently and preventing damage to the reduction mechanism in the speed reducer.

[0005] However, the above-mentioned slewing speed reducers for photovoltaic tracking brackets still have the following problems in actual use: Although the transmission and deceleration are achieved through a worm mechanism and a bevel gear mechanism, the deceleration effect achieved by such mechanisms during operation is not good, and it is difficult to effectively adapt to the speed of sunlight and rotation, which may lead to misalignment of the photovoltaic tracking bracket. At the same time, the transmission efficiency of such reduction mechanisms is low and the transmission accuracy is insufficient, thus unable to ensure the stability of the tracking bracket.

[0006] Therefore, we propose a slewing speed reducer for a photovoltaic tracking bracket to solve the problems raised above. Summary of the Invention

[0007] The object of the present invention is to provide a rotary speed reducer for a photovoltaic tracking bracket, to solve the problems that in the prior art, the transmission and deceleration are achieved through a worm mechanism and a bevel gear mechanism, but the deceleration effect achieved by such mechanisms during operation is not good, it is difficult to effectively adapt to the speed and rotation of light, which in turn leads to misalignment of the photovoltaic tracking bracket. At the same time, the transmission efficiency of such a speed reduction mechanism is low and the transmission accuracy is insufficient, thus unable to ensure the stability of the tracking bracket.

[0008] To achieve the above object, the present invention provides the following technical solution: A rotary speed reducer for a photovoltaic tracking bracket, comprising a bearing base, and a moving guide groove opened at the central position inside the bearing base;

[0009] Above the bearing base is provided a photovoltaic bracket, and a photovoltaic panel body is installed at the top end of the photovoltaic bracket;

[0010] It further includes: A positioning mechanism is arranged in the moving guide groove inside the bearing base, and the positioning mechanism includes a positioning gear ring, and the positioning gear ring is fixedly installed at the lower central position inside the moving guide groove;

[0011] Among them, a speed reduction mechanism is arranged at the rear of the top surface of the bearing base, and the speed reduction mechanism includes a speed reducer body, and a driving motor is fixedly arranged at the top end of the speed reducer body.

[0012] Preferably, the positioning mechanism includes a deviation correction guide ring, and a deviation correction sliding cavity is opened inside the deviation correction guide ring, and deviation correction balls are evenly arranged on the upper and lower sides of the deviation correction sliding cavity inside the deviation correction guide ring.

[0013] Preferably, the positioning mechanism includes a positioning gear, and the positioning gear ring is rotatably arranged below the moving guide groove inside the bearing base, and the positioning gear ring is meshed and connected to the inner side of the positioning gear ring, and the rotating positioning gear is moved through the limitation of the positioning gear ring.

[0014] Preferably, the positioning mechanism includes a dust-proof side ring, and the bottom end of the dust-proof side ring is rotatably arranged in the moving guide groove inside the bearing base, and the top end of the dust-proof side ring is fixedly provided with a bearing top plate, and the rear of the bearing top plate is sleeved and connected to the middle part of the speed reducer body included in the speed reduction mechanism.

[0015] Preferably, the speed reduction mechanism includes a positioning housing, and the positioning housing is fixedly installed inside the speed reducer body, and a first speed reduction mechanism, a second speed reduction mechanism and a third speed reduction mechanism are respectively arranged from top to bottom inside the positioning housing, and the first speed reduction mechanism, the second speed reduction mechanism and the third speed reduction mechanism respectively include a first limit gear ring, a second limit gear ring and a third limit gear ring.

[0016] Preferably, the first limiting gear ring, the second limiting gear ring and the third limiting gear ring included in the speed reduction mechanism are fixedly arranged inside the positioning housing from top to bottom. A first driving gear and first driven gears distributed at equal angles are arranged inside the first limiting gear ring. The first driving gear, the first driven gears distributed at equal angles and the first limiting gear ring are meshed and connected with each other. At the same time, a first cage is sleeved and connected at the bottom shaft of the first driven gears distributed at equal angles.

[0017] Preferably, a second driving gear and second driven gears distributed at equal angles are arranged inside the second limiting gear ring. The second driving gear, the second driven gears distributed at equal angles and the second limiting gear ring are meshed and connected with each other. At the same time, a second cage is sleeved and connected at the shaft of the second driven gears distributed at equal angles.

[0018] Preferably, a third driving gear and third driven gears distributed at equal angles are arranged inside the third limiting gear ring. The third driving gear, the third driven gears distributed at equal angles and the third limiting gear ring are meshed and connected with each other. At the same time, a third cage is sleeved and connected at the top shaft of the third driven gears distributed at equal angles.

[0019] Preferably, locking gear rings are fixedly arranged on the bottom surface of the first cage and the top surface of the third cage. Locking gears are fitted and installed inside the upper and lower locking gear rings. The inner ends of the upper and lower locking gears are respectively fixedly connected to the end of the second driving gear and the third cage.

[0020] Preferably, the bottom end of the output shaft of the driving motor is fixedly connected to the top shaft of the first driving gear inside the speed reducer body. The bottom end of the speed reducer body is slidably arranged in the deviation correction sliding cavity opened by the deviation correction guide ring. The third driving gear inside the speed reducer body is at the top shaft of the positioning gear inside the moving guide groove.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: For the rotary speed reducer for a photovoltaic tracking bracket, the first speed reduction mechanism, the second speed reduction mechanism and the third speed reduction mechanism inside the speed reducer body reduce the speed of the positioning gear, and the positioning mechanism improves the stability of the speed reducer body during rotation, so that the photovoltaic bracket and the photovoltaic panel body on the top surface are driven by the bearing top plate to rotate for tracking light. The specific content is as follows:

[0022] 1. The driving motor drives the first driving gear inside the positioning housing to rotate. The first driven gears meshed with the first driving gear synchronously fit the first limiting gear ring, so that the first driven gears distributed at equal angles revolve while rotating, and at the same time, the revolving first driven gears drive the lower first cage to rotate;

[0023] The first cage drives the internally fitted locking gear to rotate through the locking gear ring in the middle of the bottom end, and drives the second driving gear at its bottom end to rotate, so that it drives the second driven gear between the second limiting gear rings to revolve during the process of self-rotation, and drives the externally arranged second cage to rotate;

[0024] The second cage drives the locking gear ring and the third cage to rotate through the locking gear. The third driven gear drives the engaged third driving gear to rotate, and the third driving gear drives the positioning gear fixedly connected to the bottom end to rotate synchronously. Furthermore, under the operation of the first reduction mechanism, the second reduction mechanism and the third reduction mechanism, the rotation speed of the positioning gear is slowed down to improve the accuracy and stability of the angle adjustment.

[0025] 2. The decelerated positioning gear meshes with the positioning gear ring. The positioning gear ring is fixedly installed inside the bearing base, so that the positioning gear drives the reducer body and the bearing top plate in the middle to rotate. At the same time, the dust-proof side ring fixedly connected to the bottom surface of the bearing top plate is rotatably arranged inside the bearing base to improve the stability during the rotation angle adjustment;

[0026] The bottom end of the reducer body is inside the deviation correction guide ring. At the same time, the deviation correction balls arranged in the deviation correction sliding cavity are attached to the reducer body to reduce the wear of the reducer body during the rotation process, and reduce the wear of the reducer body when the reducer body drives the bearing top plate to rotate. The bearing top plate drives the photovoltaic bracket and the photovoltaic panel on the top surface to rotate to track the light. Brief Description of the Drawings

[0027] Figure 1 It is a schematic three-dimensional structure diagram of the whole invention;

[0028] Figure 2 It is a schematic installation structure diagram of the dust-proof side plate and the bearing top plate of the invention;

[0029] Figure 3 It is a schematic three-dimensional structure diagram of the deviation correction guide ring of the invention;

[0030] Figure 4 For the invention Figure 3 The enlarged structure diagram at A in;

[0031] Figure 5 It is a schematic three-dimensional structure diagram of the positioning housing of the invention;

[0032] Figure 6 It is a schematic sectional structure diagram of the positioning housing of the invention;

[0033] Figure 7 It is a schematic exploded structure diagram of the reduction mechanism of the invention;

[0034] Figure 8Schematic three-dimensional structure diagram of the locking gear ring and the locking gear of the present invention;

[0035] Figure 9 Schematic three-dimensional structure diagram of the second cage of the present invention.

[0036] In the figure: 1, bearing base; 2, moving guide groove; 3, photovoltaic bracket; 4, photovoltaic panel body; 5, positioning gear ring; 6, reducer body; 7, driving motor; 8, deviation correction guide ring; 9, deviation correction sliding cavity; 10, deviation correction ball; 11, positioning gear; 12, dust-proof side ring; 13, bearing top plate; 14, positioning housing; 15, first limit gear ring; 16, second limit gear ring; 17, third limit gear ring; 18, first driving gear; 19, first driven gear; 20, first cage; 21, second driving gear; 22, second driven gear; 23, second cage; 24, third driving gear; 25, third driven gear; 26, third cage; 27, locking gear ring; 28, locking gear. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1-9 , the present invention provides the following technical solutions:

[0039] Embodiment 1: In order to solve the problems existing in the actual use of the existing slewing reducer, therefore, in this embodiment, through the following technical solutions, a slewing reducer for a photovoltaic tracking bracket includes a bearing base 1 and a moving guide groove 2 opened at the central position inside the bearing base 1; wherein, a speed reduction mechanism is arranged at the rear of the top surface of the bearing base 1, and the speed reduction mechanism includes a reducer body 6, and a driving motor 7 is fixedly arranged at the top end of the reducer body 6; the speed reduction mechanism includes a positioning housing 14, and the positioning housing 14 is fixedly installed inside the reducer body 6, and a first speed reduction mechanism, a second speed reduction mechanism and a third speed reduction mechanism are respectively arranged from top to bottom inside the positioning housing 14, and the first speed reduction mechanism, the second speed reduction mechanism and the third speed reduction mechanism respectively include a first limit gear ring 15, a second limit gear ring 16 and a third limit gear ring 17.

[0040] The first limiting gear ring 15, the second limiting gear ring 16 and the third limiting gear ring 17 included in the speed reduction mechanism are fixedly arranged inside the positioning housing 14 from top to bottom. Inside the first limiting gear ring 15, there are a first driving gear 18 and first driven gears 19 distributed at equal angles. The first driving gear 18, the first driven gears 19 distributed at equal angles and the first limiting gear ring 15 are meshed and connected with each other. At the same time, a first cage 20 is sleeved and connected at the bottom shaft of the first driven gears 19 distributed at equal angles.

[0041] Inside the second limiting gear ring 16, there are a second driving gear 21 and second driven gears 22 distributed at equal angles. The second driving gear 21, the second driven gears 22 distributed at equal angles and the second limiting gear ring 16 are meshed and connected with each other. At the same time, a second cage 23 is sleeved and connected at the shaft of the second driven gears 22 distributed at equal angles. Inside the third limiting gear ring 17, there are a third driving gear 24 and third driven gears 25 distributed at equal angles. The third driving gear 24, the third driven gears 25 distributed at equal angles and the third limiting gear ring 17 are meshed and connected with each other. At the same time, a third cage 26 is sleeved and connected at the top shaft of the third driven gears 25 distributed at equal angles. Locking gear rings 27 are fixedly arranged on the bottom surface of the first cage 20 and the top surface of the third cage 26. A locking gear 28 is fitted and installed inside the upper and lower locking gear rings 27. The inner ends of the upper and lower locking gears 28 are respectively fixedly connected to the end of the second driving gear 21 and the third cage 26.

[0042] The bottom end of the output shaft of the driving motor 7 is fixedly connected to the top shaft of the first driving gear 18 inside the speed reducer body 6. The bottom end of the speed reducer body 6 is slidably arranged in the deviation correction sliding cavity 9 opened by the deviation correction guide ring 8. The third driving gear 24 inside the speed reducer body 6 is at the top shaft of the positioning gear 11 inside the moving guide groove 2.

[0043] As Figures 6-9 shown, when the speed reducer body 6 operates, the driving motor 7 at its top works, so that the driving motor 7 drives the uppermost first driving gear 18 inside the positioning housing 14 to rotate. The first driven gears 19 meshed with the first driving gear 18 synchronously fit the first limiting gear ring 15, so that the first driven gears 19 distributed at equal angles revolve while rotating. At the same time, the revolving first driven gears 19 drive the lower first cage 20 to rotate.

[0044] Further, the first cage 20 drives the internally fitted locking gear 28 to rotate through the locking gear ring 27 at the middle of the bottom end, and drives the second driving gear 21 at its bottom end to rotate, so that the second driven gear 22 between the second limiting gear rings 16 revolves during self-rotation, and drives the externally arranged second cage 23 to rotate.

[0045] Further, the second cage 23 drives the fitted locking gear ring 27 and the third cage 26 to rotate through the locking gear 28 arranged at the bottom. At this time, the third cage 26 drives the third driven gear 25 to rotate, and then drives the engaged third driving gear 24 to rotate, so that the positioning gear 11 fixedly connected to the bottom end is driven to rotate synchronously by the third driving gear 24. Furthermore, under the operation of the first reduction mechanism, the second reduction mechanism and the third reduction mechanism, the rotation speed of the positioning gear 11 is slowed down to improve the accuracy and stability of the angle adjustment.

[0046] Embodiment 2: In order to solve the problems existing in the actual use of the existing slewing speed reducer, therefore, in this embodiment, through the following technical solutions, a photovoltaic bracket 3 is arranged above the bearing base 1, and a photovoltaic panel body 4 is installed at the top end of the photovoltaic bracket 3; the positioning mechanism includes a dust-proof side ring 12, and the bottom end of the dust-proof side ring 12 is rotatably arranged in the moving guide groove 2 inside the bearing base 1, and a bearing top plate 13 is fixedly arranged at the top end of the dust-proof side ring 12, and the rear of the bearing top plate 13 is sleeved and connected to the middle part of the speed reducer body 6 included in the reduction mechanism.

[0047] A positioning mechanism is arranged in the moving guide groove 2 inside the bearing base 1, and the positioning mechanism includes a positioning gear ring 5, and the positioning gear ring 5 is fixedly installed at the center position below the inside of the moving guide groove 2; the positioning mechanism includes a deviation correction guide ring 8, and a deviation correction sliding cavity 9 is opened inside the deviation correction guide ring 8, and deviation correction balls 10 are equiangularly arranged on the upper and lower sides of the deviation correction sliding cavity 9 inside the deviation correction guide ring 8; the positioning mechanism includes a positioning gear 11, and the positioning gear ring 5 is rotatably arranged below the moving guide groove 2 inside the bearing base 1, and the positioning gear ring 5 is meshed with the inner side of the positioning gear ring 5, and the rotating positioning gear 11 is moved through the limitation of the positioning gear ring 5.

[0048] As Figures 2-4 shown, the positioned gear 11 decelerated below the speed reducer body 6 meshes with the positioning gear ring 5 inside the moving guide groove 2, and the positioning gear ring 5 is fixedly installed inside the bearing base 1, so that the positioning gear 11 drives the speed reducer body 6 and the bearing top plate 13 in the middle to rotate. At the same time, the dust-proof side ring 12 fixedly connected to the bottom surface of the bearing top plate 13 is rotatably arranged inside the bearing base 1, so as to improve the stability during the rotation angle adjustment.

[0049] Meanwhile, the bottom end of the reducer body 6 is slidably arranged in the deviation correction sliding cavity 9 formed inside the deviation correction guide ring 8. Meanwhile, the deviation correction balls 10 arranged in the deviation correction sliding cavity 9 are in contact with the reducer body 6, reducing the wear of the reducer body 6 during rotation. Moreover, when the reducer body 6 drives the bearing top plate 13 to rotate, the photovoltaic support 3 and the photovoltaic panel body 4 on the top surface are driven by the bearing top plate 13 to rotate, so as to track the light.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A slewing reducer for a photovoltaic tracking bracket, comprising a bearing base and a moving guide groove provided at the center position inside the bearing base; A photovoltaic bracket is arranged above the bearing base, and a photovoltaic panel is installed on the top of the photovoltaic bracket; It is characterized in that Also includes: A positioning mechanism is provided in the movable guide groove inside the bearing base, and the positioning mechanism includes a positioning toothed ring, and the positioning toothed ring is fixedly installed at the lower center position inside the movable guide groove; Wherein, a speed reduction mechanism is arranged at the rear of the top surface of the bearing base, and the speed reduction mechanism includes a speed reducer body, and a driving motor is fixedly arranged at the top of the speed reducer body; The positioning mechanism includes a deviation correction guide ring, and a deviation correction sliding cavity is provided inside the deviation correction guide ring, and deviation correction balls are arranged at equal angles on the upper and lower sides of the deviation correction sliding cavity inside the deviation correction guide ring; The positioning mechanism includes a positioning gear, and the positioning gear ring is rotatably arranged below the moving guide groove inside the bearing base, and the positioning gear is meshedly connected to the inner side of the positioning gear ring, and the rotating positioning gear is moved by the positioning gear ring being limited; The positioning mechanism includes a dustproof side ring, and the bottom end of the dustproof side ring is rotatably arranged in a movable guide groove inside the bearing base, and the top end of the dustproof side ring is fixedly provided with a bearing top plate, and the rear of the bearing top plate is sleeved and connected to the middle part of the reducer body included in the reduction mechanism; The bottom end of the output shaft of the driving motor is fixedly connected to the top rotating shaft of the first driving gear inside the reducer body, and the bottom end of the reducer body is slidably arranged in the correction sliding cavity opened by the correction guide ring, and the third driving gear inside the reducer body is fixedly connected to the top rotating shaft of the positioning gear inside the movable guide groove.

2. The photovoltaic tracking bracket rotary reducer according to claim 1, characterized in that: The reduction mechanism includes a positioning shell, and the positioning shell is fixedly installed inside the reducer body, and the interior of the positioning shell is respectively provided with a first reduction mechanism, a second reduction mechanism and a third reduction mechanism from top to bottom, and the first reduction mechanism, the second reduction mechanism and the third reduction mechanism respectively include a first limiting gear ring, a second limiting gear ring and a third limiting gear ring.

3. The rotary reducer for a photovoltaic tracking bracket according to claim 2, characterized in that: The deceleration mechanism includes a first limiting gear ring, a second limiting gear ring and a third limiting gear ring which are fixedly arranged inside the positioning shell from top to bottom, and a first driving gear and a first driven gear distributed at equal angles are arranged inside the first limiting gear ring, and the first driving gear, the first driven gear distributed at equal angles and the first limiting gear ring are meshed and connected with each other, and a first retaining frame is sleeved and connected to the bottom rotating shaft of the first driven gear distributed at equal angles.

4. The rotary reducer for a photovoltaic tracking bracket according to claim 2, characterized in that: A second driving gear and a second driven gear distributed at equal angles are arranged inside the second limiting gear ring, and the second driving gear, the second driven gear distributed at equal angles and the second limiting gear ring are meshed and connected with each other, and a second retaining frame is sleeved and connected to the rotating shaft of the second driven gear distributed at equal angles.

5. The rotary reducer for a photovoltaic tracking bracket according to claim 2, characterized in that: The third limiting gear ring is provided with a third driving gear and a third driven gear distributed at an equal angle inside, and the third driving gear, the third driven gear distributed at an equal angle and the third limiting gear ring are meshed and connected with each other, and a third retaining frame is sleeved and connected to the top surface rotating shaft of the third driven gear distributed at an equal angle.

6. The rotary reducer for a photovoltaic tracking bracket according to claim 3, characterized in that: The bottom surface of the first retaining frame and the top surface of the third retaining frame are both fixedly provided with locking gear rings, and locking gears are embedded and installed inside the upper and lower locking gear rings, and the inner ends of the upper and lower locking gears are respectively fixedly connected to the ends of the second drive gear and the third retaining frame.

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