Open deep groove ball bearing with protective structure

Abstract

The utility model relates to the technical field of open type deep groove ball bearings, in particular to an open type deep groove ball bearing with a protective structure, which comprises an inner ring, an outer ring arranged on the outer side of the inner ring, a ball arranged between the inner ring and the outer ring, retainers arranged on the front side and the rear side of the ball, and protective plates arranged on the front side and the rear side of the inner ring. Dustproof convex rings are arranged on the sides, close to the inner ring, of the protection plates, pull rings are arranged on the sides, away from the inner ring, of the protection plates, dustproof grooves are formed in the front side and the rear side of the inner ring, elastic pieces are arranged on the outer sides of the protection plates, mounting grooves are formed in the front side and the rear side of the outer ring, and clamping grooves are formed in the inner sides of the mounting grooves; according to the utility model, the protection plate, the dustproof convex ring and the dustproof groove are matched to block external impurities and dust, so that the external impurities and dust are prevented from influencing the ball and the retainer, when the internal structure of the bearing needs to be repaired and maintained, the fixed screw is taken down, and the elastic sheet can be driven to be separated from the clamping groove by pulling the pull ring; and the protection plate can be quickly disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of open deep groove ball bearings, in particular to an open deep groove ball bearing with a protective structure. Background Art

[0002] Open deep groove ball bearings are suitable for high speed or even extremely high speed operation. They have the advantages of low friction coefficient, high limit speed, and a wide range of sizes and forms. They are usually used in precision instruments, low-noise motors, automobiles, motorcycles and general machinery. They are the most widely used type of bearings in the machinery industry.

[0003] At present, in order to ensure the convenience of regular maintenance and lubrication, the existing open deep groove ball bearings, unlike closed bearings, do not have sealing and protective structures, which makes them easily disturbed by external impurities and dust during use, affecting their normal use.

[0004] Therefore, in order to address the problem that the above-mentioned existing open deep groove ball bearings do not have sealing and protective structures, which makes them easily interfered with by external impurities and dust during use, affecting their normal use, an open deep groove ball bearing with a protective structure can be designed. By setting a protective structure that is easy to disassemble on the side of the bearing, the entry of dust and impurities can be avoided without affecting the maintenance and lubrication. Utility Model Content

[0005] In order to overcome the problem that the existing open deep groove ball bearings do not have sealing and protective structures, which makes them easily interfered with by external impurities and dust during use, affecting their normal use.

[0006] The technical solution of the utility model is: an open deep groove ball bearing with a protective structure includes an inner ring, an outer ring is arranged on the outside of the inner ring, balls are arranged between the inner ring and the outer ring, retaining frames are arranged on the front and rear sides of the balls, protective plates are arranged on the front and rear sides of the inner ring, a dustproof convex ring is arranged on the side of the protective plate close to the inner ring, a pull ring is arranged on the side of the protective plate away from the inner ring, dustproof grooves are provided on the front and rear sides of the inner ring, an elastic sheet is provided on the outside of the protective plate, mounting grooves are provided on the front and rear sides of the outer ring, and a locking groove is provided on the inside of the mounting groove.

[0007] Preferably, the protection plate and the dust-proof convex ring cooperate with the dust-proof groove to block external impurities and dust, thereby preventing them from affecting the balls and the cage.

[0008] Preferably, the protective plate is designed to be annular in structure, and filtering holes are evenly opened on the surface of the protective plate.

[0009] Preferably, the dust-proof convex ring and the protective plate are integrally formed, and the dust-proof convex ring and the inner side of the dust-proof groove are adapted to each other.

[0010] Preferably, the pull ring and the protective plate are integrally formed, the cross section of the pull ring is designed in an L-shaped structure, and the inner side of the pull ring and the dustproof groove are matched with each other.

[0011] Preferably, the elastic sheet is located on the side of the protective plate close to the outer ring, and is arranged in a ring array with a plurality of elastic sheets, one end of the elastic sheet is fixedly connected with the protective plate, and the other end of the elastic sheet is provided with an arc-shaped block.

[0012] Preferably, the clamping groove is arranged in a ring array and matched with the elastic sheet, the cross section of the clamping groove is designed in an L-shaped structure, and the arc-shaped block and the inner side of the clamping groove are matched with each other.

[0013] Preferably, the outer side of the protective plate and the inner side of the mounting groove are matched with each other, the side of the surface of the protective plate is provided with a fixing screw, and the protective plate and the inner side of the mounting groove are detachably connected through the fixing screw.

[0014] The utility model discloses a beneficial effect:

[0015] The open deep groove ball bearing with the protection structure prevents the influence of impurities and dust on the ball and the retainer, and when the internal structure of the bearing needs to be overhauled and maintained, the fixing screw on the surface of the protective plate is removed, the protective plate is driven away from the inner ring by pulling the pull ring, so that the elastic sheet is separated from the clamping groove, the protective plate is quickly disassembled, the elastic sheet and the clamping groove are aligned, the protective plate is pressed into the mounting groove, the elastic sheet and the clamping groove are clamped, the pre-installation and fixation of the protective plate are realized, the installation of the fixing screw is facilitated, and the efficient assembly of the protective plate is realized. DRAWINGS

[0016] Figure 1 The utility model discloses a three-dimensional structure schematic diagram of the open deep groove ball bearing with the protection structure Figure 1 ;

[0017] Figure 2 The utility model discloses a three-dimensional structure schematic diagram of the open deep groove ball bearing with the protection structure Figure 2 ;

[0018] Figure 3 The utility model discloses a three-dimensional structure schematic diagram of the inner ring, the outer ring, the ball and the retainer

[0019] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of the protective plate, the dustproof convex ring and the elastic sheet

[0020] Figure 5 The utility model discloses a three-dimensional structure schematic diagram of the open deep groove ball bearing with the protection structure.

[0021] Explanation of the accompanying reference numerals: 1. Inner ring; 2. Outer ring; 3. Ball; 4. Cage; 5. Protective plate; 51. Filter hole; 52. Fixing screw; 6. Dustproof cam; 7. Pull ring; 8. Dustproof groove; 9. Elastic sheet; 91. Arc block; 10. Mounting groove; 11. Engaging groove. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides an embodiment: an open deep groove ball bearing with a protective structure, including an inner ring 1, an outer ring 2 is arranged on the outside of the inner ring 1, balls 3 are arranged between the inner ring 1 and the outer ring 2, retaining frames 4 are arranged on the front and rear sides of the balls 3, protective plates 5 are arranged on the front and rear sides of the inner ring 1, a dustproof convex ring 6 is arranged on the side of the protective plate 5 close to the inner ring 1, a pull ring 7 is arranged on the side of the protective plate 5 away from the inner ring 1, dustproof grooves 8 are opened on the front and rear sides of the inner ring 1, an elastic sheet 9 is arranged on the outside of the protective plate 5, mounting grooves 10 are opened on the front and rear sides of the outer ring 2, and a locking groove 11 is provided on the inner side of the mounting groove 10.

[0024] See also Figure 2-Figure 5 In this embodiment, the protective plate 5 is designed as an annular structure, and filter holes 51 are evenly opened on the surface of the protective plate 5. The dust-proof convex ring 6 and the protective plate 5 are integrally formed, and the inner sides of the dust-proof convex ring 6 and the dust-proof groove 8 are adapted to each other. The pull ring 7 and the protective plate 5 are integrally formed, and the cross-section of the pull ring 7 is designed as an L-shaped structure. The inner sides of the pull ring 7 and the dust-proof groove 8 are adapted to each other, and a gap is provided between the dust-proof convex ring 6 and the dust-proof groove 8. Through the cooperation of the protective plate 5 and the dust-proof convex ring 6 and the dust-proof groove 8, external impurities and dust are blocked to prevent them from affecting the ball 3 and the retaining frame 4. At the same time, through the filter holes 51, air or lubricating oil can normally enter and exit between the inner ring 1 and the outer ring 2 without affecting the lubrication and heat dissipation of the bearing.

[0025] See also Figure 1-Figure 5In this embodiment, the elastic sheet 9 is located on the side of the protective plate 5 close to the outer ring 2, and a plurality of them are arranged in an annular array. One end of the elastic sheet 9 is fixedly connected to the protective plate 5, and the other end of the elastic sheet 9 is provided with an arc block 91. The engaging groove 11 is arranged in an annular array and is adapted to the elastic sheet 9. The cross-section of the engaging groove 11 is designed in an L-shaped structure. The arc block 91 and the inner side of the engaging groove 11 are engaged with each other. The outer side of the protective plate 5 and the inner side of the mounting groove 10 are adapted to each other. The side of the surface of the protective plate 5 is provided with a fixing screw 52. The protective plate 5 and the inner side of the mounting groove 10 are detachably connected by the fixing screw 52. The internal structure of the bearing needs to be repaired. During inspection and maintenance, the fixing screws 52 on the surface of the protective plate 5 are removed to release the fixation of the protective plate 5 and the outer ring 2. At this time, the pull ring 7 can be pulled to drive the protective plate 5 away from the inner ring 1, thereby driving the elastic sheet 9 to deform under force until the arc block 91 is disengaged from the engagement groove 11, thereby realizing rapid disassembly of the protective plate 5 and facilitating inspection and maintenance. By aligning the elastic sheet 9 and the engagement groove 11, the protective plate 5 can be pressed into the installation groove 10, so that the elastic sheet 9 and the engagement groove 11 are engaged through interference fit, thereby realizing pre-installation and fixation of the protective plate 5, facilitating the installation of the fixing screws 52, and realizing efficient assembly of the protective plate 5.

[0026] During operation, the protection plate 5 and the dustproof convex ring 6 cooperate with the dustproof groove 8 to block external impurities and dust to prevent them from affecting the ball 3 and the retaining frame 4. At the same time, through the filter hole 51, air or lubricating oil can normally enter and exit between the inner ring 1 and the outer ring 2 without affecting the lubrication and heat dissipation of the bearing. When it is necessary to inspect and maintain the internal structure of the bearing, the fixing screws 52 on the surface of the protection plate 5 are removed to release the fixation of the protection plate 5 and the outer ring 2. At this time, the protection plate 5 can be driven away from the inner ring 1 by pulling the pull ring 7, thereby driving the elastic sheet 9 to deform under force until the arc block 91 is disengaged from the engagement groove 11, thereby realizing quick disassembly of the protection plate 5 and facilitating inspection and maintenance. By aligning the elastic sheet 9 and the engagement groove 11, the protection plate 5 can be pressed into the installation groove 10, so that the elastic sheet 9 and the engagement groove 11 are engaged through interference fit, thereby realizing pre-installation and fixation of the protection plate 5, facilitating the installation of the fixing screws 52, and realizing efficient assembly of the protection plate 5.

[0027] Through the above steps, the protection plate 5 and the dustproof convex ring 6 cooperate with the dustproof groove 8 to block external impurities and dust, preventing them from affecting the balls 3 and the retaining frame 4, so as to solve the problem that the existing open deep groove ball bearings do not have sealing and protective structures, which makes them easily interfered with by external impurities and dust during use, affecting their normal use.

Claims

1. An open deep groove ball bearing with a protective structure, comprising an inner ring (1), characterized in that: An outer ring (2) is provided on the outer side of the inner ring (1), a ball (3) is provided between the inner ring (1) and the outer ring (2), a retaining frame (4) is provided on the front and rear sides of the ball (3), a protective plate (5) is provided on the front and rear sides of the inner ring (1), a dustproof convex ring (6) is provided on the side of the protective plate (5) close to the inner ring (1), a pull ring (7) is provided on the side of the protective plate (5) away from the inner ring (1), dustproof grooves (8) are provided on the front and rear sides of the inner ring (1), an elastic sheet (9) is provided on the outer side of the protective plate (5), a mounting groove (10) is provided on the front and rear sides of the outer ring (2), and a snap-fit ​​groove (11) is provided on the inner side of the mounting groove (10).

2. The open deep groove ball bearing with a protective structure according to claim 1, characterized in that: The protective plate (5) is designed to be annular in structure, and filtering holes (51) are evenly formed on the surface of the protective plate (5).

3. The open deep groove ball bearing with a protective structure according to claim 1, characterized in that: The dustproof convex ring (6) and the protective plate (5) are integrally formed, and the inner sides of the dustproof convex ring (6) and the dustproof groove (8) are adapted to each other.

4. The open deep groove ball bearing with a protective structure according to claim 1, characterized in that: The pull ring (7) and the protective plate (5) are integrally formed, the cross section of the pull ring (7) is designed as an L-shaped structure, and the inner sides of the pull ring (7) and the dustproof groove (8) are adapted to each other.

5. The open deep groove ball bearing with a protective structure according to claim 1, characterized in that: The elastic sheet (9) is located on a side of the protective plate (5) close to the outer ring (2), and a plurality of elastic sheets (9) are arranged in a ring array. One end of the elastic sheet (9) is fixedly connected to the protective plate (5), and the other end of the elastic sheet (9) is provided with an arc block (91).

6. The open deep groove ball bearing with a protective structure according to claim 5, characterized in that: The engaging grooves (11) are arranged in an annular array and are adapted to the elastic sheet (9). The cross section of the engaging grooves (11) is designed to be L-shaped, and the arc-shaped blocks (91) and the inner sides of the engaging grooves (11) are engaged with each other.

7. The open deep groove ball bearing with a protective structure according to claim 1, characterized in that: The outer side of the protective plate (5) and the inner side of the mounting groove (10) are adapted to each other, and fixing screws (52) are provided on the side of the surface of the protective plate (5). The protective plate (5) and the inner side of the mounting groove (10) are detachably connected via the fixing screws (52).

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