Dustproof ball bearing

Abstract

The utility model discloses a dustproof ball bearing which comprises a bearing body, an upper protective cover is arranged above the bearing body, a lower protective cover is arranged below the bearing body, a first sleeve is arranged below the upper protective cover, and a second sleeve is arranged on the inner side of the first sleeve. Balls are installed between the first sleeve and the second sleeve, and clamping grooves are formed in the front face and the back face of the first sleeve. The bearing has the beneficial effects that through the design of the graphite radiating fins, heat generated by rotation of the bearing can be adsorbed and radiated through the graphite radiating fins, so that not only is the temperature rise of the bearing avoided, but also the bearing is prevented from being burnt out, and meanwhile, through the design of the sponge lubricating pad, the service life of the bearing is prolonged. By arranging the sponge lubricating pad, the ball can be lubricated through the sponge lubricating pad when the ball does not have a lubricating effect, so that not only is the rotation resistance of the bearing prevented from being increased, but also the damage time of the bearing is shortened, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a dustproof ball bearing. Background Art

[0002] Ball bearings are a type of rolling bearings. Ball bearings are also called ball bearings. Spherical alloy steel balls are installed between the inner and outer steel rings to reduce friction during power transmission and improve the transmission efficiency of mechanical power by rolling. Ball bearings cannot withstand heavy loads and are more common in light industrial machinery. General industrial ball bearings meet the AISI52100 standard. Balls and rings are usually made of high chromium steel with a Rockwell C-scale hardness of approximately 61-65.

[0003] During use, the existing dustproof ball bearings will rotate under load, and the friction generated will cause the raceway surfaces or rolling element surfaces of the inner ring and outer ring to generate a large amount of heat, thereby causing the bearing temperature to increase, which not only reduces the service life of the bearing, but also causes the bearing to burn out. At the same time, during use, the existing dustproof ball bearings need to be manually lubricated to the internal balls, but in the process of manually applying grease, excessive grease will be applied, which will increase the rotational resistance of the bearing and accelerate the damage of the bearing. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a dustproof ball bearing which can dissipate heat for the rotating shaft and does not need to apply lubricating oil manually, in view of the current status of the prior art.

[0006] (II) Technical solution

[0007] The utility model is achieved through the following technical scheme: the utility model proposes a dustproof ball bearing, including a bearing body, an upper protective cover is arranged above the bearing body, a lower protective cover is arranged below the bearing body, a first sleeve is arranged below the upper protective cover, a second sleeve is arranged inside the first sleeve, balls are installed between the first sleeve and the second sleeve, slots are installed on both the front and back sides of the first sleeve, a retaining frame is fixed between the balls, sponge lubrication pads are installed symmetrically between the upper protective cover and the balls, blocks are arranged below one side wall of the upper protective cover and above one side wall of the lower protective cover, and graphite heat sinks are installed symmetrically between the lower protective cover and the balls.

[0008] Furthermore, the upper protective cover is threadedly connected to the first sleeve, and the lower protective cover is bolted to the first sleeve. Both the upper protective cover and the lower protective cover are made of stainless steel.

[0009] By adopting the above technical solution, the upper protective cover and the lower protective cover can protect the interior of the bearing body to prevent dust from entering. The upper protective cover and the lower protective cover are both made of stainless steel to prevent rust.

[0010] Furthermore, the first sleeve and the second sleeve are connected by nesting the balls, and the first sleeve and the second sleeve are made of stainless steel.

[0011] By adopting the above technical solution, the first sleeve and the second sleeve can rotate through the balls, and the first sleeve and the second sleeve are made of stainless steel to prevent rust.

[0012] Furthermore, the slot is formed on the first sleeve, and the ball is nested and connected with the retaining frame.

[0013] By adopting the above technical solution, the card slot can fix the card block therethrough, and the retaining frame can protect the ball to prevent it from jumping out.

[0014] Furthermore, the clamping block is welded to the upper protective cover, the sponge lubricating pad is bonded to the upper protective cover, and lubricating oil is applied inside the sponge lubricating pad.

[0015] By adopting the above technical solution, the design of the block and the upper protective cover can make the block firmly connected to the upper protective cover, the design of the sponge lubricating pad and the upper protective cover can make the sponge lubricating pad firmly connected to the upper protective cover, and the sponge lubricating pad is coated with lubricating oil, so that the sponge lubricating pad can achieve lubrication effect when the ball has no lubrication effect.

[0016] Furthermore, the clamping block is welded to the lower protective cover, and the graphite heat sink is bonded to the lower protective cover.

[0017] By adopting the above technical solution, the design of the block and the lower protective cover can make the block and the lower protective cover firmly connected, and the design of the graphite heat sink and the lower protective cover can absorb and dissipate the heat generated by the rotation of the bearing body through the graphite heat sink.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. To solve the problem that the existing dustproof ball bearings will generate a lot of heat on the raceway surface or rolling element surface of the inner ring and the outer ring due to the load rotation during use, thereby generating friction and causing the bearing temperature to rise, which not only reduces the service life of the bearing but also causes the bearing to burn out. The utility model adopts the design of graphite heat sink, which can absorb and dissipate the heat generated by the rotation of the bearing, thereby avoiding the bearing temperature from rising and the bearing from burning out.

[0021] 2. In order to solve the problem that during the use of the existing dustproof ball bearings, it is necessary to apply lubricating oil to the internal balls, but excessive grease will be applied during the grease application process, which will increase the rotational resistance of the bearing and accelerate the damage of the bearing. The utility model uses the design of the sponge lubrication pad to achieve the lubrication effect when the balls have no lubrication effect. This not only avoids the increase of the rotational resistance of the bearing, but also slows down the time of bearing damage, thereby increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a dustproof ball bearing described in the utility model;

[0023] Figure 2 It is a schematic diagram of the internal structure of a dustproof ball bearing described in the utility model;

[0024] Figure 3 It is a back view of an upper protective cover in a dustproof ball bearing described in the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Bearing body; 2. Upper protective cover; 3. Ball; 4. First sleeve; 5. Second sleeve; 6. Slot; 7. Block; 8. Sponge lubricating pad; 9. Graphite heat sink; 10. Cage; 11. Lower protective cover. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] like Figure 1-Figure 3As shown, a dustproof ball bearing in this embodiment includes a bearing body 1, an upper protective cover 2 is arranged above the bearing body 1, and a lower protective cover 11 is arranged below the bearing body 1. The upper protective cover 2 and the lower protective cover 11 can protect the inside of the bearing body 1 to prevent dust from entering, a first sleeve 4 is arranged below the upper protective cover 2, a second sleeve 5 is arranged inside the first sleeve 4, a ball 3 is installed between the first sleeve 4 and the second sleeve 5, the first sleeve 4 and the second sleeve 5 can rotate through the ball 3, and the first sleeve 4 is installed with a card slot 6 on both sides of the front and back of the first sleeve 4. The card slot 6 can fix the card block 7 through it, and the retaining frame 10 can protect the ball 3 to prevent it from jumping out, and the retaining frame 10 is fixed between the balls 3, sponge lubrication pads 8 are installed symmetrically between the upper protective cover 2 and the ball 3, card blocks 7 are arranged below one side wall of the upper protective cover 2 and above one side wall of the lower protective cover 11, and graphite heat sinks 9 are installed symmetrically between the lower protective cover 11 and the ball 3.

[0029] like Figure 1-Figure 3 As shown, in this embodiment, the upper protective cover 2 is threadedly connected to the first sleeve 4, and the lower protective cover 11 is bolted to the first sleeve 4. The upper protective cover 2 and the lower protective cover 11 are both made of stainless steel. The upper protective cover 2 and the lower protective cover 11 can protect the inside of the bearing body 1 to prevent dust from entering. The upper protective cover 2 and the lower protective cover 11 are both made of stainless steel to prevent rust. The first sleeve 4 and the second sleeve 5 are nested and connected through the ball 3. The first sleeve 4 and the second sleeve 5 are made of stainless steel. The first sleeve 4 and the second sleeve 5 can rotate through the ball 3. The first sleeve 4 and the second sleeve 5 are made of stainless steel to prevent rust. The slot 6 is formed on the first sleeve 4. The ball 3 is nested and connected with the retaining frame 10. The slot 6 can fix the block 7 through it, and the retaining frame 10 can fix the ball 3. For protection, to prevent jumping out, the block 7 is welded to the upper protective cover 2, the sponge lubricating pad 8 is bonded to the upper protective cover 2, the sponge lubricating pad 8 is smeared with lubricating oil, the design of the block 7 and the upper protective cover 2 can make the block 7 and the upper protective cover 2 firmly connected, the design of the sponge lubricating pad 8 and the upper protective cover 2 can make the sponge lubricating pad 8 and the upper protective cover 2 firmly connected, the sponge lubricating pad 8 is smeared with lubricating oil, so that the ball 3 can achieve lubrication effect through the sponge lubricating pad 8 when there is no lubrication effect, the block 7 is welded to the lower protective cover 11, the graphite heat sink 9 is bonded to the lower protective cover 11, the design of the block 7 and the lower protective cover 11 can make the block 7 and the lower protective cover 11 firmly connected, the design of the graphite heat sink 9 and the lower protective cover 11 can absorb and dissipate the heat generated by the rotation of the bearing body 1 through the graphite heat sink 9.

[0030] The specific implementation process of this embodiment is as follows: when in use, first, install the bearing body 1 on the rotating shaft of the equipment to be used, and then put the bearing body 1 into use. During use, the bearing body 1 will generate heat, and the graphite heat sink 9 can absorb and dissipate the heat generated by the rotation of the bearing body 1 to prevent the temperature of the bearing body 1 from rising, thereby preventing the bearing body 1 from burning out. When the lubricating oil on the surface of the ball 3 in the bearing body 1 is insufficient, lubrication can be performed using the lubricating oil applied to the sponge lubrication pad 8 to achieve a lubrication effect, which not only avoids the increase in the rotation resistance of the bearing body 1, but also slows down the time of damage to the bearing body 1. After use, the equipment can be turned off, and the bearing body 1 can be removed from the rotating shaft for more detailed maintenance and repair.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dustproof ball bearing, characterized in that: The invention comprises a bearing body (1), wherein an upper protective cover (2) is arranged above the bearing body (1), a lower protective cover (11) is arranged below the bearing body (1), a first sleeve (4) is arranged below the upper protective cover (2), a second sleeve (5) is arranged inside the first sleeve (4), a ball (3) is installed between the first sleeve (4) and the second sleeve (5), a clamping groove (6) is installed on both the front and back sides of the first sleeve (4), a retaining frame (10) is fixed between the balls (3), a sponge lubrication pad (8) is installed symmetrically between the upper protective cover (2) and the balls (3), a clamping block (7) is installed below one side wall of the upper protective cover (2) and above one side wall of the lower protective cover (11), and a graphite heat sink (9) is installed symmetrically between the lower protective cover (11) and the balls (3).

2. A dustproof ball (3) bearing according to claim 1, characterized in that: The upper protective cover (2) is threadedly connected to the first sleeve (4), and the lower protective cover (11) is bolted to the first sleeve (4). Both the upper protective cover (2) and the lower protective cover (11) are made of stainless steel.

3. A dustproof ball bearing (3) according to claim 1, characterized in that: The first sleeve (4) and the second sleeve (5) are connected by nesting the balls (3); the first sleeve (4) and the second sleeve (5) are made of stainless steel.

4. A dustproof ball (3) bearing according to claim 1, characterized in that: The clamping groove (6) is formed on the first sleeve (4), and the ball (3) is nested and connected with the retaining frame (10).

5. A dustproof ball (3) bearing according to claim 1, characterized in that: The clamping block (7) is welded to the upper protective cover (2), the sponge lubricating pad (8) is bonded to the upper protective cover (2), and lubricating oil is smeared inside the sponge lubricating pad (8).

6. A dustproof ball (3) bearing according to claim 1, characterized in that: The clamping block (7) is welded to the lower protective cover (11), and the graphite heat sink (9) is bonded to the lower protective cover (11).

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