Thin-wall angular contact ball bearing with dustproof and waterproof structure

Abstract

The utility model belongs to the technical field of thin-wall angular contact ball bearings, and particularly relates to a thin-wall angular contact ball bearing with a dustproof and waterproof structure, which comprises an outer ring, an inner ring, a ball and a sealing cover, the inner ring is arranged in the outer ring, the ball is arranged between the outer ring and the inner ring, and the sealing cover is arranged in the top end of the outer ring. A dustproof and waterproof structure is arranged between the outer ring and the inner ring and comprises a dustproof plate, a cavity, a limiting plate, a first spring, a clamping block and a clamping groove, the dustproof plate is arranged between the outer ring and the inner ring, the cavity is formed in the dustproof plate, the limiting plate is arranged in the cavity, and the first spring is connected between the limiting plate and the cavity in a welded mode. Clamping blocks are connected to the ends, away from the first springs, of the limiting plates, and clamping grooves are formed in the sides, close to the clamping blocks, in the outer rings. When in use, the ball bearing can prevent the ball from contacting with dust and water, and is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of thin-wall angular contact ball bearings, in particular to a thin-wall angular contact ball bearing with a dustproof and waterproof structure. Background Art

[0002] Bearings are precision mechanical components that convert the sliding friction between the rotating shaft and the shaft seat into rolling friction, thereby reducing friction losses. Bearings are generally composed of four parts: inner ring, outer ring, rolling element and cage. The inner ring is used to match and rotate with the shaft, and is an important component in current mechanical equipment.

[0003] However, the balls inside the existing bearings are usually exposed to the outside and are easily exposed to dust and water during use. At the same time, long-term accumulation of dust and water can easily lead to poor rolling effect of the balls, affecting use. Summary of the invention

[0004] The utility model aims to provide a thin-wall angular contact ball bearing with a dustproof and waterproof structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin-walled angular contact ball bearing with a dustproof and waterproof structure, comprising an outer ring, an inner ring, a ball and a sealing cover;

[0006] An inner ring is arranged inside the outer ring, balls are arranged between the outer ring and the inner ring, and a sealing cover is arranged inside the top end of the outer ring.

[0007] Preferably, a dustproof and waterproof structure is provided between the outer ring and the inner ring, and the dustproof and waterproof structure comprises a dustproof plate, a cavity, a limit plate, a first spring and a block, a dustproof plate is provided between the outer ring and the inner ring, a cavity is provided inside the dustproof plate, a limit plate is provided inside the cavity, a first spring is welded between the limit plate and the cavity, and a block is connected to the top of the limit plate, and a dustproof and waterproof structure is provided between the outer ring and the inner ring, and the dustproof and waterproof structure comprises a dustproof plate, a cavity, a limit plate, a first spring, a block and a slot, a dustproof plate is provided between the outer ring and the inner ring, a cavity is provided inside the dustproof plate, a limit plate is provided inside the cavity, a first spring is welded between the limit plate and the cavity, an end of the limit plate away from the first spring is connected to the block, and a slot is provided on a side of the outer ring close to the block.

[0008] Preferably, both sides of the limiting plate are connected with guide blocks, a guide groove is provided on one side of the cavity close to the guide block, and the limiting plate and the cavity form a sliding structure through the guide blocks and the guide groove.

[0009] Preferably, locking mechanisms are provided on both sides of the inner side of the top of the outer ring close to the sealing cover, and the locking mechanisms include an empty slot, an L-shaped rod, a second spring, a pull ring, a locking slot, a reserved slot, a vertical rod, a horizontal plate and a third spring. An empty slot is opened inside the outer ring, an L-shaped rod is provided inside the empty slot, and a second spring is welded between the L-shaped rod and the empty slot.

[0010] Preferably, one end of the L-shaped rod is connected to a pull ring, and a locking groove is provided on a side of the sealing cover close to the L-shaped rod.

[0011] Preferably, a reserved groove is provided on one side of the outer ring away from the empty groove, the reserved groove is connected with a vertical rod extending to the inside of the sealing cover, a horizontal plate is sleeved on the surface of the vertical rod, and a third spring is welded between the horizontal plate and the reserved groove.

[0012] Preferably, one end of the L-shaped rod is connected to a T-shaped slider, and a T-shaped slot is provided inside the empty slot at one end close to the T-shaped slider, and the L-shaped rod and the empty slot form a sliding structure through the T-shaped slider and the T-shaped slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is used, the dustproof plate is placed between the outer ring and the inner ring, and the dustproof plate is pressed so that the outer ring squeezes the clamping block. When the clamping block moves, the limit plate is driven to move, and the limit plate drives the guide block to move inside the guide groove, so that the limit plate moves more stably, and when the limit plate moves, it squeezes the first spring connected to one side, so that the clamping block is engaged with the reserved hole opened inside the outer ring.

[0015] The utility model can prevent the ball from contacting with dust and water when in use, and is more convenient to use.

[0016] 2. When the utility model is used, the pull ring is pulled, and the movement of the pull ring drives the L-shaped rod to move, and the L-shaped rod drives the T-shaped slider to move inside the T-shaped slide groove, so that the L-shaped rod moves more stably, and when the L-shaped rod moves, it will squeeze the second spring connected to one side, so that the L-shaped rod is separated from the locking groove, and at the same time, the sealing cover can be taken out by the resetting effect of the third spring, and the sealing cover can be automatically lifted up when the sealing cover is opened; conversely, the sealing cover is squeezed, thereby squeezing the third spring, so that the locking groove opened on one side of the sealing cover can be aligned with the position of the L-shaped rod, and then the pull ring is released to reset the second spring, so that the L-shaped rod is engaged with the sealing cover, so as to prevent the sealing cover from loosening and causing leakage of lubricating oil, and facilitate the installation or disassembly of the sealing cover, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of an enlarged side cross-section of the dustproof and waterproof structure of the utility model;

[0021] Figure 4 It is a side view enlarged cross-sectional structural schematic diagram of the locking mechanism of the utility model.

[0022] In the figure: 1. outer ring; 2. inner ring; 3. ball; 4. sealing cover; 5. dustproof and waterproof structure; 501. dustproof plate; 502. cavity; 503. limit plate; 504. first spring; 505. clamping block; 506. clamping slot; 6. guide block; 7. guide slot; 8. locking mechanism; 801. empty slot; 802. L-shaped rod; 803. second spring; 804. pull ring; 805. locking slot; 806. reserved slot; 807. vertical rod; 808. horizontal plate; 809. third spring; 9. T-shaped slider; 10. T-shaped slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 It can be seen that the utility model provides a technical solution: a thin-walled angular contact ball bearing with a dustproof and waterproof structure, comprising an outer ring 1, an inner ring 2, a ball 3 and a sealing cover 4;

[0025] A dustproof and waterproof structure 5 is arranged between the outer ring 1 and the inner ring 2, and the dustproof and waterproof structure 5 includes a dustproof plate 501, a cavity 502, a limit plate 503, a first spring 504, a block 505 and a slot 506. A dustproof plate 501 is arranged between the outer ring 1 and the inner ring 2, a cavity 502 is opened inside the dustproof plate 501, a limit plate 503 is arranged inside the cavity 502, a first spring 504 is welded and connected between the limit plate 503 and the cavity 502, a block 505 is connected to one end of the limit plate 503 away from the first spring 504, a slot 506 is opened on one side of the outer ring 1 close to the block 505, guide blocks 6 are connected on both sides of the limit plate 503, a guide groove 7 is opened on one side of the cavity 502 close to the guide block 6, and the limit plate 503 and the cavity 502 form a sliding structure through the guide block 6 and the guide groove 7.

[0026] See also Figures 1 to 3 It can be seen that by placing the dustproof plate 501 between the outer ring 1 and the inner ring 2 and pressing the dustproof plate 501, the block 505 can engage with the reserved hole opened inside the outer ring 1, thereby preventing the ball 3 from contacting dust and water when the utility model is used.

[0027] See also Figure 1 , Figure 2 and Figure 4 It can be seen that the inner side of the top of the outer ring 1 is provided with a locking mechanism 8 on both sides close to the sealing cover 4, and the locking mechanism 8 includes an empty slot 801, an L-shaped rod 802, a second spring 803, a pull ring 804, a locking slot 805, a reserved slot 806, a vertical rod 807, a horizontal plate 808 and a third spring 809. The outer ring 1 is provided with an empty slot 801, an L-shaped rod 802 is provided inside the empty slot 801, a second spring 803 is welded between the L-shaped rod 802 and the empty slot 801, a pull ring 804 is connected to one side of the L-shaped rod 802, and the sealing cover 4 is close to the L-shaped rod 80 2 is provided with a locking groove 805, a side of the outer ring 1 away from the empty groove 801 is provided with a reserved groove 806, the reserved groove 806 is connected with a vertical rod 807 extending to the inside of the sealing cover 4, the surface of the vertical rod 807 is sleeved with a horizontal plate 808, a third spring 809 is welded and connected between the horizontal plate 808 and the reserved groove 806, one end of the L-shaped rod 802 is connected with a T-shaped slider 9, a T-shaped slide groove 10 is provided on the side of the empty groove 801 close to the T-shaped slider 9, and the L-shaped rod 802 and the empty groove 801 form a sliding structure through the T-shaped slider 9 and the T-shaped slide groove 10.

[0028] See also Figure 1 , Figure 2 and Figure 4It can be seen that by pulling the pull ring 804, the L-shaped rod 802 can be separated from the locking groove 805, and the sealing cover 4 can be taken out by the resetting action of the third spring 809; conversely, the sealing cover 4 is squeezed, thereby squeezing the third spring 809, so that the locking groove 805 opened on one side of the sealing cover 4 can be aligned with the position of the L-shaped rod 802, and then the pull ring 804 is released to reset the second spring 803, so that the L-shaped rod 802 is engaged with the sealing cover 4 to prevent the sealing cover 4 from loosening and causing leakage of lubricating oil.

[0029] To sum up, when the utility model is used, the dustproof plate 501 is placed between the outer ring 1 and the inner ring 2, and the dustproof plate 501 is pressed so that the outer ring 1 squeezes the block 505. When the block 505 moves, it drives the limit plate 503 to move. The limit plate 503 can squeeze the first spring 504, so that the block 505 can be engaged with the reserved hole opened inside the outer ring 1, so that the utility model can prevent the ball 3 from contacting with dust and water when used, and is easy to use. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thin-walled angular contact ball bearing with a dustproof and waterproof structure, comprising an outer ring (1), an inner ring (2), balls (3) and a sealing cover (4), characterized in that: An inner ring (2) is arranged inside the outer ring (1), a ball (3) is arranged between the outer ring (1) and the inner ring (2), and a sealing cover (4) is arranged inside the top end of the outer ring (1).

2. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 1, characterized in that: A dustproof and waterproof structure (5) is arranged between the outer ring (1) and the inner ring (2), and the dustproof and waterproof structure (5) comprises a dustproof plate (501), a cavity (502), a limiting plate (503), a first spring (504), a clamping block (505) and a clamping slot (506). A dustproof plate (501) is arranged between the outer ring (1) and the inner ring (2), a cavity (502) is arranged inside the dustproof plate (501), a limiting plate (503) is arranged inside the cavity (502), a first spring (504) is welded between the limiting plate (503) and the cavity (502), an end of the limiting plate (503) away from the first spring (504) is connected to the clamping block (505), and a clamping slot (506) is arranged on a side of the outer ring (1) close to the clamping block (505).

3. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 2, characterized in that: Both sides of the limiting plate (503) are connected to guide blocks (6), a guide groove (7) is provided inside the cavity (502) on a side close to the guide block (6), and the limiting plate (503) and the cavity (502) form a sliding structure through the guide block (6) and the guide groove (7).

4. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 1, characterized in that: A locking mechanism (8) is provided on both sides of the inner side of the top of the outer ring (1) close to the sealing cover (4), and the locking mechanism (8) comprises an empty slot (801), an L-shaped rod (802), a second spring (803), a pull ring (804), a locking slot (805), a reserved slot (806), a vertical rod (807), a horizontal plate (808) and a third spring (809). An empty slot (801) is provided inside the outer ring (1), an L-shaped rod (802) is provided inside the empty slot (801), and a second spring (803) is welded between the L-shaped rod (802) and the empty slot (801).

5. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 4, characterized in that: One end of the L-shaped rod (802) is connected to a pull ring (804), and a locking groove (805) is provided on a side of the sealing cover (4) close to the L-shaped rod (802).

6. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 4, characterized in that: A reserved groove (806) is provided on a side of the outer ring (1) away from the empty groove (801); the reserved groove (806) is internally connected to a vertical rod (807) extending to the inside of the sealing cover (4); a horizontal plate (808) is sleeved on the surface of the vertical rod (807); a third spring (809) is welded between the horizontal plate (808) and the reserved groove (806).

7. The thin-walled angular contact ball bearing with a dustproof and waterproof structure according to claim 5, characterized in that: One end of the L-shaped rod (802) is connected to a T-shaped slider (9), and a T-shaped slide groove (10) is provided inside the empty slot (801) at one end close to the T-shaped slider (9). The L-shaped rod (802) and the empty slot (801) form a sliding structure through the T-shaped slider (9) and the T-shaped slide groove (10).

Images