Deep groove ball bearing with dustproof cover

Abstract

The utility model discloses a deep groove ball bearing with a dust cover, which relates to the technical field of bearings and comprises an outer ring, an inner ring, matching grooves, steel balls, a protective component, a retainer component and a check ring, the inner ring is arranged in an inner cavity of the outer ring, and the matching grooves are formed in the outer wall of the inner ring and the inner wall of the outer ring in an annular array mode. The steel balls are arranged between the outer ring and the inner ring, the protection assemblies are arranged on the two sides between the inner ring and the outer ring, the retainer assembly is arranged among the steel balls, and the check ring is installed on the outer wall of the outer ring. The annular clamping grooves are formed in the corresponding positions of the outer ring and the inner ring, the dustproof cover forms double fixation, the wear-resisting pad is attached to the first bending part of the dustproof cover, noise is reduced, the service life is prolonged, the elastic damping ring is arranged in the hook part of the dustproof cover, metal collision abnormal sound is avoided, the multiple bending structures of the dustproof cover form an elastic deformation area, and the service life of the dustproof cover is prolonged. The dustproof cover is prevented from falling off, and the use stability of the bearing is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a deep groove ball bearing with a dust cover. Background Technology

[0002] Deep groove ball bearings are rolling bearings widely used in mechanical equipment. Their structure typically includes an outer ring, an inner ring, steel balls, and a cage.

[0003] Under high-speed rotation or harsh operating conditions, bearings are susceptible to the intrusion of dust and foreign objects, leading to lubrication failure, accelerated wear, and even bearing seizure or premature failure. Traditional dust prevention solutions mainly use metal dust covers to reduce the entry of dirt and foreign objects. However, existing dust prevention structures are prone to frictional noise at the contact surfaces between the metal dust cover and the inner or outer ring when the outer and inner rings rotate. After long-term use, wear may cause the dust cover to loosen or detach from the outer and inner rings, resulting in poor structural stability. Even slight displacement of the dust cover can lead to seal failure or abnormal noise, affecting the stability of bearing operation. Utility Model Content

[0004] The purpose of this invention is to provide a deep groove ball bearing with a dust cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep groove ball bearing with a dust cover, comprising:

[0006] Outer ring;

[0007] Inner ring, which is disposed within the inner cavity of the outer ring;

[0008] The mating grooves are arranged in a ring array on the outer wall of the inner ring and the inner wall of the outer ring.

[0009] Steel balls, a plurality of said steel balls being disposed between the outer ring and the inner ring;

[0010] A protective assembly is disposed on both sides between the inner ring and the outer ring, and the protective assembly is used to protect the bearing from dust.

[0011] A cage assembly disposed between a plurality of steel balls;

[0012] A stop ring is installed on the outer wall of the outer ring.

[0013] Preferably, the cage assembly includes:

[0014] A semi-cage, with two semi-cages disposed between a plurality of steel balls;

[0015] Rivets, a plurality of said rivets are mounted in a ring array between two half cages.

[0016] Preferably, the plurality of steel balls are arranged in a ring array and rolled within the inner cavities of the two semi-cages, and the steel balls roll within the inner cavities of the two mating grooves.

[0017] Preferably, the protective component includes:

[0018] The slots are respectively formed on both sides of the inner wall of the outer ring and on both sides of the outer wall of the inner ring;

[0019] Wear-resistant pad, the wear-resistant pad is fixed to the inner wall of two of the slots, and the wear-resistant pad is fixed to the outer wall of the inner ring;

[0020] Dust covers, two of which are disposed between an outer ring and an inner ring, and the dust covers are snapped into two opposite slots.

[0021] Preferably, the dust cover includes:

[0022] An annular cover, wherein the annular cover is provided on both sides between the inner ring and the outer ring;

[0023] The first bend is bent inside the annular cover.

[0024] The second bend is bent at the middle of the annular cover;

[0025] The hook portion is bent to the outside of the annular cover;

[0026] The shock-absorbing rings, in a ring array, are interspersed in the middle of the hook portion.

[0027] Preferably, the first bent portion is engaged with the inner cavity of the inner ring's groove, the hook portion is engaged with the inner cavity of the outer ring's groove, and the shock-absorbing ring is fitted and connected to the inner wall of the outer ring's groove.

[0028] The technical effects and advantages of this utility model are as follows:

[0029] This invention features annular grooves on the outer and inner rings. The dust cover is secured by its hook and first bend, forming a double fixation to prevent axial displacement. The wear-resistant pad fits snugly against the first bend of the dust cover, reducing direct metal-to-metal friction, lowering noise, and extending lifespan. The hook of the dust cover incorporates an elastic damping ring to absorb vibrations during high-speed bearing operation, preventing metal-to-metal collision noises. Furthermore, the multiple bends of the dust cover create an elastic deformation zone to accommodate bearing thermal expansion or impact loads, preventing the dust cover from falling off and improving bearing stability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model.

[0031] Figure 2 This is a partial cross-sectional view of the dust cover of this utility model from the front.

[0032] In the diagram: 1. Outer ring; 2. Inner ring; 3. Mating groove; 4. Steel ball; 5. Slot; 6. Wear-resistant pad; 7. Semi-cage; 8. Dust cover; 81. Annular cover; 82. First bend; 83. Second bend; 84. Hook; 85. Shock-absorbing ring; 9. Rivet; 10. Stop ring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model provides, for example Figure 1-2 The deep groove ball bearing with a dust cover shown includes an outer ring 1, an inner ring 2, mating grooves 3, steel balls 4, a protective assembly, a cage assembly, and a retaining ring 10. The inner ring 2 is disposed in the inner cavity of the outer ring 1. Multiple mating grooves 3 are arranged in a ring array on the outer wall of the inner ring 2 and the inner wall of the outer ring 1. Multiple steel balls 4 are disposed between the outer ring 1 and the inner ring 2, and the steel balls 4 roll in the inner cavities of two opposite mating grooves 3. The arrangement of the steel balls 4 facilitates the connection performance and smooth rotation between the outer ring 1 and the inner ring 2. The protective assembly is disposed on both sides between the inner ring 2 and the outer ring 1. The protective assembly is used to prevent dust from entering the space between the outer ring 1 and the inner ring 2, and reduces the impact of dust on the rolling of the steel balls 4. The cage assembly is disposed between the multiple steel balls 4 to facilitate the stability of the position of the multiple steel balls 4 and improve the stability of the bearing structure. The retaining ring 10 is installed on the outer wall of the outer ring 1.

[0035] The cage assembly includes a half cage 7 and rivets 9. The two half cages 7 are disposed between a plurality of steel balls 4. The plurality of rivets 9 are installed in a ring array between the two half cages 7. The plurality of steel balls 4 are rolled in a ring array within the inner cavity of the two half cages 7, so that the plurality of steel balls 4 can roll stably between the outer ring 1 and the inner ring 2.

[0036] In addition, the protective components include slots 5, wear-resistant pads 6, and dust covers 8. Multiple slots 5 are respectively opened on both sides of the inner wall of the outer ring 1 and the outer wall of the inner ring 2. The slots 5 between the outer ring 1 and the inner ring 2 are arranged in a relative state. The slots 5 are annular groove structures. The wear-resistant pads 6 are fixed to the inner walls of two of the slots 5 and the outer wall of the inner ring 2. Two dust covers 8 are set between the outer ring 1 and the inner ring 2. The dust covers 8 are snapped between the two opposite slots 5, so that the inner side of the dust cover 8 close to the inner side of the inner ring 2 can fit and rub against the wear-resistant pad 6, reducing the collision noise between the inner side of the dust cover 8 and the outer side of the inner ring 2 when the outer ring 1 and the inner ring 2 rotate.

[0037] Furthermore, the dust cover 8 includes an annular cover body 81, a first bent portion 82, a second bent portion 83, a hook portion 84, and a shock-absorbing ring 85. The annular cover body 81 is located on both sides between the inner ring 2 and the outer ring 1. The annular cover body 81 can protect the sides of multiple steel balls 4, reducing the impact of dust or foreign objects on the steel balls 4. The first bent portion 82 is bent inside the annular cover body 81 and is engaged with the inner cavity of the slot 5 on the inner ring 2. The wear-resistant pad 6 in the inner cavity of the slot 5 on the inner ring 2 helps to reduce frictional damage to the inner cavity of the slot 5 on the inner ring 2 by the first bent portion 82 on the inner side of the dust cover 8. The second bent portion 83... The fold 83 bends at the middle of the annular cover 81, and the hook 84 bends at the outside of the annular cover 81. The hook 84 engages with the inner cavity of the groove 5 on the outer ring 1. The curved outer wall of the hook 84 engages with the inner wall of the groove 5, which can prevent the dust cover 8 from detaching from the outer ring 1 and the inner ring 2, and improve the stability of the position of the dust cover 8. Multiple shock-absorbing rings 85 are arranged in a ring array and inserted in the middle of the hook 84. The shock-absorbing rings 85 are in close contact with the inner wall of the groove 5 on the outer ring 1. By setting the shock-absorbing rings 85, the collision noise between the hook 84 of the dust cover 8 and the inner wall of the groove 5 on the outer ring 1 is reduced, and the stability of the bearing is improved.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deep groove ball bearing with a dust cover, characterized in that It includes: The outer ring (1); Inner ring (2), the inner ring (2) is arranged in the inner cavity of the outer ring (1); The matching groove (3), a plurality of matching grooves (3) are arranged in the outer wall of the inner ring (2) and the inner wall of the outer ring (1); Steel ball (4), a plurality of steel balls (4) are arranged between the outer ring (1) and the inner ring (2); Protective assembly, the protective assembly is arranged on both sides between the inner ring (2) and the outer ring (1), and the protective assembly is used for dustproof of the bearing; Retainer assembly, the retainer assembly is arranged between a plurality of steel balls (4); Stop ring (10), the stop ring (10) is installed on the outer wall of the outer ring (1).

2. The deep groove ball bearing with a dust cover according to claim 1, characterized in that The retainer assembly includes: Half retainer (7), the relative two half retainers (7) are arranged between a plurality of steel balls (4); Rivets (9), a plurality of rivets (9) are arranged in a ring array between the two half retainers (7).

3. The deep groove ball bearing with a dust cover according to claim 2, characterized in that A plurality of steel balls (4) are arranged in a ring array and are arranged in the inner cavity of the two half retainers (7), and the steel balls (4) roll in the inner cavity of the two matching grooves (3).

4. The deep groove ball bearing with a dust cover according to claim 1, characterized in that The protective assembly includes: The clamping groove (5), a plurality of clamping grooves (5) are arranged on both sides of the inner wall of the outer ring (1) and the outer wall of the inner ring (2); Wear-resistant pad (6), the wear-resistant pad (6) is fixed to the inner wall of two clamping grooves (5), and the wear-resistant pad (6) is fixed to the outer wall of the inner ring (2); Dust cover (8), two dust covers (8) are arranged between the outer ring (1) and the inner ring (2), and the dust cover (8) is clamped between the two clamping grooves (5).

5. A deep groove ball bearing with a dust cover according to claim 4, characterized in that The dust cover (8) includes: Annular cover body (81), the annular cover body (81) is arranged on both sides between the inner ring (2) and the outer ring (1); First bending part (82), the first bending part (82) is bent on the inner side of the annular cover body (81); Second bending part (83), the second bending part (83) is bent in the middle of the annular cover body (81); Hook part (84), the hook part (84) is bent on the outer side of the annular cover body (81); Damping ring (85), a plurality of damping rings (85) are arranged in a ring array and are inserted in the middle of the hook part (84).

6. A deep groove ball bearing with a dust cover according to claim 5, characterized in that The first bending part (82) is clamped in the inner cavity of the clamping groove (5) on the inner ring (2), the hook part (84) is clamped in the inner cavity of the clamping groove (5) on the outer ring (1), and the damping ring (85) is connected with the inner wall of the clamping groove (5) on the outer ring (1).

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