Slewing bearing for photovoltaic support

Abstract

The utility model discloses a slewing bearing for a photovoltaic support, and relates to the field of dust prevention of slewing bearings, the slewing bearing comprises a fixed ring and a rotating ring arranged on the inner circumference of the fixed ring, balls are rotatably mounted in roller paths of the fixed ring and the rotating ring, and dust prevention mechanisms are mounted on the end surfaces of the fixed ring and the rotating ring; the dustproof mechanism is used for preventing dust and impurities from entering a roller path of the fixed ring and the rotating ring, and the dustproof mechanism comprises a first protection assembly and a second protection assembly; the first protection assembly is fixedly connected to the two end faces of the fixed ring, and the second protection assembly is fixedly connected to the two end faces of the rotating ring. By arranging the first protection assembly and the second protection assembly, the periphery of the dustproof annular plate is a conical surface, dust accumulation is avoided, and meanwhile the dustproof effect of the device is further improved through cooperation of a first dustproof cover, a second dustproof cover and the dustproof annular plate.

Description

Technical Field

[0001] The utility model relates to the dust prevention field of a slewing bearing, in particular to a slewing bearing for a photovoltaic support. Background Art

[0002] The slewing bearing is a new type of mechanical component, which consists of inner and outer rings, rolling elements, etc. The slewing bearing is a large bearing that can withstand comprehensive loads.

[0003] Photovoltaic systems are generally installed in open areas to facilitate better reception of sunlight. In such areas, the air contains a lot of dust or other particulate impurities. The existing slewing bearing is generally fixed with a dust cover, and the dustproof effect of a single dust cover is low. Utility Model Content

[0004] The purpose of the present utility model is to provide a slewing bearing for a photovoltaic support in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a slewing bearing for a photovoltaic support, comprising a fixed ring and a rotating ring arranged on the inner circumference of the fixed ring, wherein balls are rotatably installed in raceways of the fixed ring and the rotating ring, and dustproof mechanisms are installed on the end surfaces of the fixed ring and the rotating ring;

[0006] The dustproof mechanism is used to prevent dust and impurities from entering the raceways of the fixed ring and the rotating ring, and the dustproof mechanism includes a first protection component and a second protection component;

[0007] The first protective component is fixedly connected to the two end surfaces of the fixed ring, and the second protective component is fixedly connected to the two end surfaces of the rotating ring. The first protective component and the second protective component are used to further improve the dustproof effect of the slewing bearing.

[0008] As a further solution of the present invention: the first protective component includes a No. 1 dust cover arranged on the two end faces of the fixed ring, the No. 1 dust cover is fixedly connected to the fixed ring through a fixing part, the inner peripheral part of the fixing part coincides with the end face of the rotating ring, and a sealing ring is connected to the inner side of the fixing part at the contact position with the fixed ring.

[0009] As a further solution of the present invention: the second protective component includes a No. 2 dust cover fixedly connected to the two end faces of the rotating ring, the cross-section of the No. 2 dust cover is an "L"-shaped structure, the vertical part of the No. 2 dust cover is located on the outside of the No. 1 dust cover, and the outer circumference of the No. 2 dust cover is integrally formed with a dustproof annular plate rotatably connected to the No. 1 dust cover, and a rotating groove for the dustproof annular plate to rotate is provided on the outer end face of the No. 1 dust cover.

[0010] As a further solution of the present invention: the outer side of the dustproof annular plate is conical, and the conical surface of the dustproof annular plate is narrow at one end close to the second dust cover, and is wide at one end away from the second dust cover.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. By setting up the No. 1 protection component and the No. 2 protection component, and the outer periphery of the dustproof annular plate is conical, the accumulation of dust is avoided. At the same time, the cooperation of the No. 1 dustproof cover, the No. 2 dustproof cover and the dustproof annular plate further improves the dustproof effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 For the utility model Figure 2 Enlarged view of the layout at point A in the middle.

[0016] In the figure: 1. Fixed ring; 2. Rotating ring; 3. Dust cover No. 1; 4. Fixed piece; 5. Dust cover No. 2; 6. Sealing ring; 7. Ball; 8. Dustproof annular plate; 9. Rotating groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 to 3 In an embodiment of the utility model, a slewing bearing for a photovoltaic bracket includes a fixed ring 1 and a rotating ring 2 arranged on the inner circumference of the fixed ring 1, balls 7 are rotatably installed in the raceways of the fixed ring 1 and the rotating ring 2, and dustproof mechanisms are installed on the end faces of the fixed ring 1 and the rotating ring 2; the dustproof mechanism is used to prevent dust and impurities from entering the raceways of the fixed ring 1 and the rotating ring 2, and the dustproof mechanism includes a first protective component and a second protective component; the first protective component is fixedly connected to the two end faces of the fixed ring 1, and the second protective component is fixedly connected to the two end faces of the rotating ring 2, and the first protective component and the second protective component are used to further improve the dustproof effect of the slewing bearing.

[0019] In this embodiment: when the rotating ring 2 and the fixed ring 1 rotate relative to each other, the second protective component connected to the rotating ring 2 rotates along with the rotating ring 2. At this time, the fixed ring 1 and the first protective component remain stationary, so the second protective component rotates relative to the first protective component. The first protective component and the second protective component cooperate to effectively block dust and other particulate impurities, preventing dust or other particulate impurities from entering the interior of the device.

[0020] Please refer to Figure 1 and Figure 2 The first protective component includes a No. 1 dust cover 3 arranged on the two end faces of the fixed ring 1. The No. 1 dust cover 3 is fixedly connected to the fixed ring 1 through a fixing part 4. The inner peripheral part of the fixing part 4 coincides with the end face of the rotating ring 2. The inner side of the fixing part 4 is connected to the contact position of the fixed ring 1 with a sealing ring 6.

[0021] In this embodiment: when the No. 1 dust cover 3 is fixed by the fixing part 4, the sealing ring 6 is squeezed, and the sealing ring 6 is effectively squeezed. At this time, the sealing ring 6 is deformed, which can seal dust or other particulate impurities from passing through the contact position between the fixing ring 1 and the No. 1 dust cover 3 and entering the connection position between the fixing ring 1 and the rotating ring 2.

[0022] Please refer to Figure 2 and Figure 3 The second protective assembly includes a No. 2 dust cover 5 fixedly connected to the two end faces of the rotating ring 2. The cross-section of the No. 2 dust cover 5 is an "L"-shaped structure. The vertical part of the No. 2 dust cover 5 is located on the outside of the No. 1 dust cover 3. The outer circumference of the No. 2 dust cover 5 is integrally formed with a dustproof annular plate 8 rotatably connected to the No. 1 dust cover 3. A rotating groove 9 is provided on the outer end surface of the No. 1 dust cover 3 for the dustproof annular plate 8 to rotate.

[0023] In this embodiment: after the No. 2 dust cover 5 is installed with the No. 1 dust cover 3, it is located on the outer end surface of the rotating ring 2. Then, the No. 2 dust cover 5 is fixedly connected to the outer end surface of the rotating ring 2 with bolts. When the rotating ring 2 rotates, the rotating ring 2 drives the No. 2 dust cover 5 and the No. 1 dust cover 3 to rotate relative to each other. At this time, the No. 2 dust cover 5 drives the dustproof annular plate 8 to rotate in the rotating groove 9.

[0024] Please refer to Figure 3 The outer side of the dustproof annular plate 8 is conical, and the conical surface of the dustproof annular plate 8 is narrow at one end close to the second dustproof cover 5, and the conical surface of the dustproof annular plate 8 is wide at one end away from the second dustproof cover 5.

[0025] In this embodiment: since the outer side of the dustproof annular plate 8 is a conical surface, the conical surface rotates with the rotation of the rotating ring 2, so dust is not easy to adhere to the dustproof annular plate 8, thereby avoiding the accumulation of dust on the dustproof annular plate 8, and further reducing the entry of dust into the interior of the device.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slewing bearing for a photovoltaic support, comprising a fixed ring (1) and a rotating ring (2) arranged on the inner periphery of the fixed ring (1), characterized in that: Balls (7) are rotatably mounted in the raceways of the fixed ring (1) and the rotating ring (2), and dustproof mechanisms are mounted on the end faces of the fixed ring (1) and the rotating ring (2); The dustproof mechanism is used to prevent dust and impurities from entering the rolling paths of the fixed ring (1) and the rotating ring (2), and the dustproof mechanism includes a first protection component and a second protection component; The first protective component is fixedly connected to the two end faces of the fixed ring (1), and the second protective component is fixedly connected to the two end faces of the rotating ring (2). The first protective component and the second protective component are used to further improve the dustproof effect of the slewing bearing; The first protective component comprises a number one dust cover (3) provided on the two end faces of the fixed ring (1), the number one dust cover (3) being fixedly connected to the fixed ring (1) via a fixing member (4), the inner peripheral portion of the fixing member (4) being coincident with the end face of the rotating ring (2), and a sealing ring (6) being connected to the inner side of the fixing member (4) at a position in contact with the fixed ring (1); The second protective component comprises a second dust cover (5) fixedly connected to the two end faces of the rotating ring (2); the cross section of the second dust cover (5) is an "L"-shaped structure; the vertical portion of the second dust cover (5) is located outside the first dust cover (3); the outer periphery of the second dust cover (5) is integrally formed with a dustproof annular plate (8) rotatably connected to the first dust cover (3); and a rotating groove (9) for the dustproof annular plate (8) to rotate is provided on the outer end face of the first dust cover (3).

2. A slewing bearing for a photovoltaic support according to claim 1, characterized in that: The outer side of the dustproof annular plate (8) is a conical surface, and the conical surface of the dustproof annular plate (8) is narrow at one end close to the second dustproof cover (5), and is wide at one end away from the second dustproof cover (5).

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