Bearing seat for photovoltaic tracking system

Abstract

The utility model discloses a bearing seat for a photovoltaic tracking system, which is convenient and quick to assemble, can realize relative fixation of a cable on the bearing seat, and prevents the cable from being twisted into the bearing seat in an operation process. The bearing seat for the photovoltaic tracking system comprises an outer ring and an inner ring, the outer ring comprises an upper outer ring and a lower outer ring which are detachably connected, and the lower outer ring is matched with the end face of a stand column of the photovoltaic tracking system to achieve locking. The opposite surfaces of the upper outer ring and the lower outer ring are respectively provided with a first arc surface and a second arc surface, and the first arc surface and the second arc surface are enclosed to form an annular cavity; the inner ring comprises an upper positioning piece and a lower positioning piece which are designed in a split mode. The outer side surfaces of the upper positioning piece and the lower positioning piece are in sliding fit with the annular cavity, and the inner side surfaces of the upper positioning piece and the lower positioning piece are respectively provided with an upper positioning groove and a lower positioning groove which are matched with the circumferential surface of a main beam of the photovoltaic tracking system in shape; wire clamps are arranged on the front face and the rear face of the upper positioning piece and used for fixing a cable of the photovoltaic tracking system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic technical field, especially point to a bearing seat for photovoltaic tracking system. BACKGROUND

[0002] Photovoltaic tracking system is a kind of technical equipment for improving photovoltaic power generation efficiency, belongs to solar power generation field. It is through dynamic adjustment photovoltaic module's angle and direction, makes it always face the best incident angle of sunlight, to maximize the absorption efficiency of solar energy. In the photovoltaic matrix of application photovoltaic tracking system, photovoltaic module is usually installed on rotatable girder, and girder passes through the bearing seat fixed in the upper end of stand to realize relative fixation.

[0003] In prior art, the structure of bearing seat generally includes inner ring, outer ring, rolling body and retainer. Inner ring is fixedly connected with the girder of photovoltaic tracking system, and outer ring is fixedly installed on the upper end of stand. Rolling body is located between inner ring and outer ring, can smoothly roll, to realize the smooth rotation of girder. Retainer is used to fix the position of rolling body, to prevent mutual collision and falling off. The bearing seat of this structure not only has high strength and wear resistance, but also can ensure that photovoltaic module can stably and accurately adjust angle when tracking sun.

[0004] However, the inner ring and outer ring of existing bearing seat are one-piece structure provided with perforation, can only be sleeved on girder and moved to the corresponding position in the form of sleeving when installing, and when girder is longer, it is difficult and troublesome to install, especially when applied in the region with large undulating topography, whether the one end of fixed girder is installed first and then the bearing seat is sleeved, or the bearing seat is installed on the stand first and then passes through girder, the installation difficulty is increased. At the same time, in order to ensure synchronous rotation with photovoltaic module, the cable in photovoltaic matrix is generally locked on girder and passes through the side surface of bearing seat, and in the process of girder rotation, it can be twisted into the inner ring and outer ring of bearing seat, which affects the normal operation of photovoltaic tracking system and causes production accidents. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a bearing seat for photovoltaic tracking system, solve the problems existing in prior art, which is convenient and fast to assemble, and can realize the relative fixation of cable in bearing seat, to avoid the twisting of cable in the process of operation.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] A bearing seat for a photovoltaic tracking system, comprising an outer ring and an inner ring; the outer ring comprises an upper outer ring and a lower outer ring connected detachably, the lower outer ring is matched with a column end face of the photovoltaic tracking system to realize locking; the opposite faces of the upper outer ring and the lower outer ring are respectively provided with a first circular arc face and a second circular arc face, and the first circular arc face and the second circular arc face enclose an annular cavity; the inner ring comprises an upper positioning member and a lower positioning member designed in a split manner; the outer side faces of the upper positioning member and the lower positioning member are all in sliding fit with the annular cavity, and the inner side faces of the two are respectively provided with an upper positioning groove and a lower positioning groove matched with the shape of a peripheral face of a main beam of the photovoltaic tracking system; the front and back faces of the upper positioning member are both provided with a wire clamp for fixing a cable of the photovoltaic tracking system.

[0008] The two ends of the upper outer ring and the lower outer ring are respectively provided with an upper mounting hole and a lower mounting hole; a bolt is passed through the corresponding upper mounting hole and lower mounting hole and is in threaded connection with a nut to realize detachable connection between the upper outer ring and the lower outer ring.

[0009] The front and back faces of the upper positioning member and the lower positioning member are both provided with an upper edge cover and a lower edge cover.

[0010] The bearing seat for the photovoltaic tracking system further comprises a cable fixing member; the cable fixing member comprises the wire clamp and a U-shaped connecting part matched with the inner wall of the upper positioning groove.

[0011] Preferably, the cable fixing member is formed by folding a metal plate member, and the wire clamp is a pair of pressing plates folded on both sides of the end of the U-shaped connecting part.

[0012] A through hole is arranged on the second circular arc face of the lower outer ring.

[0013] Preferably, the two sides of the through hole are both arranged in a wave shape.

[0014] After the above technical scheme is adopted, the utility model has the following technical effects:

[0015] In the utility model, the outer ring and the inner ring of the bearing seat are all designed as split members, the upper outer ring and the upper positioning member can be first disassembled in the process of assembling the photovoltaic matrix, the lower outer ring is pre-installed, the main beam is placed on the lower positioning member in the lower outer ring, then the upper positioning member and the upper outer ring are sequentially placed, and finally the upper outer ring and the lower outer ring are locked, so that the operation is simple and fast; the wire clamp is arranged on the front and back faces of the upper positioning member, and when the cable of the photovoltaic tracking system is laid to the position of the bearing seat, the cable can pass through the wire clamp to realize the cable fixing at the position, so that a certain distance is left between the cable and the bearing seat, the cable is prevented from being twisted into the bearing seat, and the safety is higher. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of a specific embodiment of the utility model.

[0017] Figure 2 The front view of the embodiment of the utility model.

[0018] Figure 3 The side view of the embodiment of the utility model.

[0019] Figure 4 The exploded view of the embodiment of the utility model.

[0020] Figure 5 The sectional view of the embodiment of the utility model.

[0021] Figure 6 The application scenario schematic view of the embodiment of the utility model.

[0022] Explanation of the drawing reference number:

[0023] 1-outer ring;11-upper outer ring;111-first arc surface;112-upper mounting hole;12-lower outer ring;121-second arc surface;122-lower mounting hole;123-through hole;

[0024] 2-inner ring;21-upper positioning member;211-upper positioning groove;212-upper edge covering;22-lower positioning member;221-lower positioning groove;222-lower edge covering;

[0025] 3-cable fixing member;31-cable clamp;32-U-shaped connecting part;

[0026] 4-bolt;

[0027] 5-nut;

[0028] a-stand;B-main beam;C-cable. Specific implementation

[0029] In order to further explain the technical scheme of the utility model, the utility model is described in detail below through specific embodiments.

[0030] Reference Figures 1-6 As shown in the figure, the utility model discloses a bearing seat for photovoltaic tracking system, including outer ring 1 and inner ring 2;

[0031] Outer ring 1 includes detachably connected upper outer ring 11 and lower outer ring 12, and the lower outer ring 12 cooperates with the end face of the stand a of the photovoltaic tracking system to realize locking;The opposite surface of the upper outer ring 11 and the lower outer ring 12 is respectively provided with first arc surface 111 and second arc surface 121, and the first arc surface 111 and the second arc surface 121 are enclosed to form an annular cavity;

[0032] The inner ring 2 comprises an upper positioning member 21 and a lower positioning member 22 which are designed in a split manner; the outer side surfaces of the upper positioning member 21 and the lower positioning member 22 are in sliding fit with the annular cavity, and the inner side surfaces of the two are respectively provided with an upper positioning groove 211 and a lower positioning groove 221 which are matched with the shape of the peripheral surface of the main beam b of the photovoltaic tracking system;

[0033] The front and rear surfaces of the upper positioning member 21 are provided with a wire clamp 31, which is used for fixing the cable c of the photovoltaic tracking system.

[0034] According to the above scheme, the outer ring 1 and the inner ring 2 of the bearing seat are designed as split parts, the upper outer ring 11 and the upper positioning member 21 can be first disassembled, the lower outer ring 12 is pre-installed, the main beam b is placed on the lower positioning member 22 in the lower outer ring 12, then the upper positioning member 21 and the upper outer ring 11 are placed in sequence, and finally the upper outer ring 11 and the lower outer ring 12 are locked, so that the operation is simple and fast; the front and rear surfaces of the upper positioning member 21 are provided with the wire clamp 31, the cable c of the photovoltaic tracking system can pass through the wire clamp 31 to realize the cable fixing at the position of the bearing seat, so that a certain distance is left between the cable c and the bearing seat, the cable c is prevented from being twisted into the bearing seat, and the safety is higher.

[0035] The following shows the specific embodiments of the utility model.

[0036] The two ends of the upper outer ring 11 and the lower outer ring 12 are respectively provided with an upper mounting hole 112 and a lower mounting hole 122; a bolt 4 is used for penetrating through the corresponding upper mounting hole 112 and the lower mounting hole 122 and is in threaded connection with a nut 5, so that detachable connection between the upper outer ring 11 and the lower outer ring 12 is realized. When assembling, only a group of bolts 4 and nuts 5 on one side of the outer ring 1 can be disassembled, so that the upper outer ring 11 is rotated and opened and closed around the other group of bolts 4 as the shaft, the upper outer ring 11 and the lower outer ring 12 remain an integral whole, the parts are not easy to lose, and after the inner ring 2 and the main beam b are placed, the upper outer ring 11 can be placed.

[0037] The front and rear surfaces of the upper positioning member 21 and the lower positioning member 22 are provided with an upper edge covering 212 and a lower edge covering 222, so that the outer side surfaces of the upper positioning member 21 and the lower positioning member 22 form a U-shaped groove structure and can be matched on the first circular surface 111 / second circular surface 121 without axial displacement.

[0038] The utility model also comprises a cable fixing member 3; the cable fixing member 3 comprises the wire clamp 31 and a U-shaped connecting part 32 which is matched in the inner wall of the upper positioning groove 211. The cable fixing member 3 which is independent of the upper positioning member 21 makes the wire clamp 31 become an optional part which can be directly disassembled from the bearing seat when not needed; meanwhile, in use, the U-shaped connecting part 32 of the cable fixing member 3 can be relatively fixed by the surface of the main beam b and the inner wall of the upper positioning groove 211, so that installation is convenient and fast.

[0039] Further, the cable fixing member 3 is folded and formed by a metal plate, easy to process; the wire clamps 31 are a pair of pressing pieces folded and formed on both sides of the end of the U-shaped connecting part 32, which can be adapted to cables c of different diameters.

[0040] The second arc surface 121 of the lower outer ring is provided with a through hole 123. Since the utility model is mainly applied outdoors, sand and moisture will enter the friction surface between the outer ring 1 and the inner ring 2, and the through hole 123 can make the sand and moisture leak out under the action of gravity, thereby improving the wear resistance and durability of the bearing seat.

[0041] Further, the two sides of the through hole 123 are set as wave shapes, having stronger support strength.

[0042] The above embodiments and drawings do not limit the product form and style of the utility model, and any ordinary technical personnel in the art makes appropriate changes or modifications to them, which should be considered as not departing from the patent scope of the utility model.

Claims

1.A bearing seat for a photovoltaic tracking system, characterized in that: it comprises an outer ring and an inner ring; the outer ring comprises an upper outer ring and a lower outer ring connected detachably, the lower outer ring is matched with the end surface of the column of the photovoltaic tracking system to realize locking; the opposite surfaces of the upper outer ring and the lower outer ring are respectively provided with a first circular arc surface and a second circular arc surface, and the first circular arc surface and the second circular arc surface enclose a ring-shaped cavity; the inner ring comprises an upper positioning member and a lower positioning member designed separately; the outer side surfaces of the upper positioning member and the lower positioning member are both in sliding fit with the ring-shaped cavity, and the inner side surfaces of the upper positioning member and the lower positioning member are respectively provided with an upper positioning groove and a lower positioning groove matched with the shape of the peripheral surface of the main beam of the photovoltaic tracking system; the front and back surfaces of the upper positioning member are both provided with a wire clamp for fixing the cable of the photovoltaic tracking system. 2.The bearing seat for the photovoltaic tracking system according to claim 1, characterized in that: the upper outer ring and the lower outer ring are respectively provided with upper mounting holes and lower mounting holes at both ends; a bolt is used to pass through the corresponding upper mounting holes and lower mounting holes and is in threaded connection with a nut to realize detachable connection between the upper outer ring and the lower outer ring. 3.The bearing seat for the photovoltaic tracking system according to claim 1, characterized in that: the front and back surfaces of the upper positioning member and the lower positioning member are both provided with upper edges and lower edges. 4.The bearing seat for the photovoltaic tracking system according to claim 1, characterized in that: it further comprises a cable fixing member; the cable fixing member comprises the wire clamp and a U-shaped connecting part matched with the inner wall of the upper positioning groove. 5.The bearing seat for the photovoltaic tracking system according to claim 4, characterized in that: the cable fixing member is formed by folding a metal plate, and the wire clamp is a pair of pressing pieces folded on both sides of the end of the U-shaped connecting part. 6.The bearing seat for the photovoltaic tracking system according to claim 1, characterized in that: a through hole is arranged on the second circular arc surface of the lower outer ring. 7.The bearing seat for the photovoltaic tracking system according to claim 6, characterized in that: both sides of the through hole are arranged in a wave shape.

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