Roller bearing
By designing roller bearings, independent rotation of the photovoltaic tracker's main shaft was achieved, solving the problem of bearing damage caused by high torsional and bending stress of the main shaft and extending the bearing's service life.
Patent Information
- Application Number
- CN202520568662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The existing 90-meter-long main shaft of the photovoltaic tracker suffers from high torsional and bending stress during rotation, leading to bearing damage. Furthermore, when multiple main shafts share a drive unit, the torque superposition affects independent rotation.
Design a roller bearing including a base, a fixed seat and a collar, with a spindle connector connected to the collar. The spindle connector achieves independent rotation through raceways and rollers to avoid torque superposition.
This allows the two spindle joints to rotate independently, reducing the superposition of spindle bending moment and torque, and extending the service life of the bearings.
Smart Images
Figure CN223676786U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic power generation technical field, concretely relates to a roller bearing. BACKGROUND
[0002] In photovoltaic power generation system, in order to promote photoelectric conversion capability, photovoltaic module is generally set to sunlight direction. Because the generation efficiency of photovoltaic power generation is greatly influenced by sunlight angle, the orientation of each solar cell panel in photovoltaic power generation system is set to move along with sunlight angle, which can effectively improve photoelectric conversion efficiency. Multiple tracking devices in tracking system commonly share driving device and are connected through main shaft to transmit torque.
[0003] The main shaft of the existing photovoltaic tracker is generally about 90 meters long, and the main shaft adopts hoop butt joint form, and the torsion and bending stress of the 90-meter-long main shaft is very large. When the main shaft rotates, the running resistance is entirely applied to the bearing, causing the bearing to be damaged. SUMMARY
[0004] 1. Technical problem to be solved by the utility model
[0005] The utility model aims at solving the technical problems in the prior art, and provides a roller bearing, which can enable two main shaft joints to rotate independently and not affect each other.
[0006] 2. Technical scheme
[0007] To solve the above problems, the utility model provides the technical scheme that:
[0008] A roller bearing, comprising a base, two fixed seats are arranged on the base, a collar is rotatably connected to the fixed seat, the collars on the two fixed seats are coaxially arranged, a main shaft joint is fixedly connected to the collar, and a main shaft connecting structure is arranged on the main shaft joint.
[0009] Optionally, the main shaft joint is a tubular structure, and a main shaft fixing hole is arranged on the side wall of the main shaft joint.
[0010] Optionally, the main shaft joint is a tubular structure, and the main shaft joint and the main shaft are butt jointed through a hoop.
[0011] Optionally, a rolling way is arranged on the fixed seat, the rolling way is annularly arranged, and the collar is rotatably installed in the rolling way.
[0012] Optionally, the collar comprises two symmetrically arranged spoke plates, a plurality of rolling shafts are arranged between the two spoke plates in the circumferential direction, a roller is installed on the rolling shaft, and the outer side of the roller abuts against the rolling way.
[0013] Optionally, the number of the rolling shafts is three or more.
[0014] Optionally, the number of the rolling shafts is four.
[0015] Optionally, the main shaft joint is arranged at the inner hole side of the sleeve ring.
[0016] 3、Advantages
[0017] Compared with the prior art, the technical scheme has the following advantages:
[0018] The left and right two main shaft joints of the roller bearing can be connected to two main shafts, and the two main shaft joints can rotate independently without affecting each other. Therefore, the two main shafts can also rotate independently without affecting each other. The base can be installed on the column through the base mounting hole on the base, and the independent rotation of the two main shafts can be realized on one column, and the bending moment and the torque of the main shafts will not be superimposed on each other, thereby solving the problem of superimposition of the torque of the main shafts of the photovoltaic tracking support. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 A structure diagram of the roller bearing is provided for the embodiment of the utility model;
[0020] Figure 2 A cross-sectional view of the roller bearing is provided for the embodiment of the utility model;
[0021] Figure 3 A side view of the roller bearing is provided for the embodiment of the utility model
[0022] 1, base; 2, fixed seat; 3, sleeve ring; 31, spoke plate; 32, rolling shaft; 33, roller; 4, main shaft joint; 5, main shaft fixing hole; 6, raceway. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and do not limit the protection scope of the utility model.
[0024] It should be noted that when an element is referred to as being "fixed", "disposed", "fixedly connected" or "arranged" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. Further, when an element is referred to as being "fixedly connected" to another element, the two elements can be fixedly connected in a detachable manner or fixedly connected in a non-detachable manner such as sleeving, clamping, integrally formed fixing, welding, etc., which can be achieved in the prior art and will not be described here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two elements is perpendicular, but due to manufacturing and assembly, there can be a certain vertical error. The terms "perpendicular", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0026] The "first" and "second" referred to in the present application do not represent the specific number and order, but are only used for the differentiation of names.
[0027] The embodiments are described in detail with reference to the accompanying drawings Figure 1 , 2 As shown in FIGS. 1, 2 and 3, the roller bearing of the embodiment comprises a base 1, two fixed seats 2 are arranged on the base 1, the two fixed seats 2 are arranged close to each other but not in contact, a sleeve ring 3 is rotatably connected on the fixed seat 2, the central axis of the sleeve ring 3 is horizontally arranged, the sleeve rings 3 on the two fixed seats 2 are coaxially arranged, a main shaft joint 4 is fixedly connected on the sleeve ring 3, the main shaft joint 4 is used for connecting a main shaft, and a main shaft connecting structure is arranged on the main shaft joint 4.
[0028] The two main shaft joints 4 of the roller bearing can be connected to two main shafts, the two main shaft joints 4 can rotate independently and do not affect each other. Therefore, the two main shafts can also rotate independently and do not affect each other. The base 1 can be installed on a stand column through the base mounting hole of the base 1, and the independent rotation of the two main shafts can be realized on a stand column, and the bending moment and the torque of the main shafts will not be superimposed on each other, thereby solving the problem of superimposition of the torque of the main shafts of the photovoltaic tracking support.
[0029] As the preferred scheme of the utility model, the main shaft joint 4 is tubular structure, the specific shape is adapted to the shape of the main shaft, the main shaft can be sleeved on the main shaft joint 4 or the main shaft joint 4 is adopted hoop butt joint, the lateral wall of the main shaft joint 4 is equipped with the main shaft fixed hole 5, to be fixedly connected the main shaft and the main shaft joint 4 by the form such as bolt.
[0030] As the preferred scheme of the utility model, the fixed seat 2 is equipped with the raceway 6, the raceway 6 is annularly arranged, the raceway 6 is fixedly connected on the fixed seat 2, the sleeve ring 3 is rotatably installed at the inner hole of the raceway 6, the sleeve ring 3 includes two symmetrical wheel spoke plates 31, the raceway 6 and the wheel spoke plate 31 are coaxially arranged, the raceway 6 is arranged between the two wheel spoke plates 31 and does not contact the wheel spoke plate 31, a plurality of rollers 32 are arranged between the two wheel spoke plates 31 along the circumferential direction, the roller 32 is installed with the roller 33, the outer side of the roller 33 is in abutment with the raceway 6, so that the sleeve ring 3 can rotate with the center of the raceway 6 as the center.
[0031] As the preferred scheme of the utility model, the number of the roller 32 is three and above, in order to further guarantee the stability when the sleeve ring 3 rotates, and avoid that the structure is more complex due to the setting of excessive roller 32 and roller 33, the number of the roller 32 is preferably 4, the same roller bearing has two raceways 6, four wheel spoke plates 31, eight rollers 32, eight rollers 33, two main shaft joints 4 and one base 1.
[0032] As the preferred scheme of the utility model, the main shaft joint 4 is arranged at the inner hole side of the sleeve ring 3 and is fixedly connected with the inner side wall of the sleeve ring 3, the sleeve ring 3 and the main shaft joint 4 rotate synchronously.
[0033] The utility model and its implementation mode are described above, the description is not limited, and the shown in the drawing is only one of the implementation mode of the utility model, and the actual structure is not limited to this. Therefore, if the ordinary skilled in the art is inspired, without departing from the utility model creation tenet, the structure mode and the embodiment similar to the technical scheme are not created creatively, all should belong to the protection scope of the utility model.
Claims
1. A roller bearing, characterized by: The base is provided with two fixing seats, the fixing seats are coaxially provided with the lantern rings, the lantern rings are fixedly connected with the main shaft joint, and the main shaft joint is provided with a main shaft connecting structure.
2. A roller bearing according to claim 1, wherein: The main shaft joint is a tubular structure, and the side wall of the main shaft joint is provided with a main shaft fixing hole.
3. A roller bearing according to claim 1, wherein: The main shaft joint is a tubular structure, and the main shaft joint and the main shaft are connected through a clamp.
4. A roller bearing according to any one of claims 1-3, characterized in that: The fixing seat is provided with a raceway, the raceway is annularly arranged, and the lantern ring is rotatably arranged in the raceway.
5. A roller bearing according to claim 4, wherein: The lantern ring comprises two symmetrically arranged spoke plates, a plurality of rolling shafts are arranged between the two spoke plates in the circumferential direction, the rolling shafts are provided with rolling wheels, and the outer side of the rolling wheels is in abutment with the raceway.
6. A roller bearing according to claim 5, wherein: The number of the rolling shafts is three or more.
7. A roller bearing according to claim 6, wherein: The number of the rolling shafts is four.
8. A roller bearing according to any one of claims 1-3, characterized in that: The main shaft joint is arranged on the inner hole side of the lantern ring.