Stainless steel deep groove ball bearing

Abstract

The utility model discloses a stainless steel deep groove ball bearing, which relates to the field of bearings and comprises a stainless steel outer ring and a stainless steel inner ring which are coaxially arranged, a plurality of balls which are arranged at equal intervals and are distributed in a double-ring shape are arranged between the inner side of the circumference of the stainless steel outer ring and the outer side of the circumference of the stainless steel inner ring, and a retainer mechanism is sleeved on the outer sides of the balls; an oil filling hole is formed in the top of the stainless steel outer ring, a sealing plug is arranged in the oil filling hole, and dustproof sealing baffles are arranged on the two sides of the stainless steel inner ring. According to the utility model, the operation requirements of the bearing in high-speed, high-load and severe environments are fully considered, and the structures such as the oil injection hole, the sealing cover, the dustproof sealing baffle and the retainer mechanism are integrated, so that the lubricating performance, the dustproof performance and the anti-pollution capability of the bearing are effectively enhanced, the maintenance cost is reduced, and the operation stability is improved; in addition, the corrosion resistance of the bearing is improved due to the selection of the stainless steel material, so that the bearing can keep a good working state in a humid or high-corrosivity environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely related to a stainless steel deep groove ball bearing. BACKGROUND

[0002] Deep groove ball bearings are the most common and widely used rolling bearings, with simple design and easy manufacturing. They are suitable for carrying radial and axial loads, and their working principle is based on the principle of rolling friction. There is a series of rolling elements (usually steel balls) between the inner and outer rings. When the bearing is running, the rolling elements roll between the inner and outer rings, so that the bearing can bear external load and reduce friction. The rolling of the rolling elements reduces the sliding between the contact surfaces, reduces the friction resistance, and thus reduces the heat generation and improves the efficiency.

[0003] Despite the many advantages of deep groove ball bearings, there are also some shortcomings, such as limited load capacity. Compared with other types of bearings, deep groove ball bearings have lower load capacity, especially when subjected to large loads. And in high temperature, high pressure or strong corrosion environment, the performance of deep groove ball bearings may be reduced.

[0004] For example, the anti-corrosion deep groove ball bearing disclosed in Chinese patent CN221195757U includes a stainless steel inner ring, a stainless steel outer ring coaxially rotatably mounted on the outer ring of the stainless steel inner ring, a second ceramic baffle fixedly installed on both sides of the stainless steel inner ring, a first ceramic baffle fixedly installed on both sides of the stainless steel outer ring, and the outer side of the first ceramic baffle in contact with the inner side of the second ceramic baffle. It can be seen that the bearing uses double-sided sealing baffle to play the role of protection and corrosion resistance, but it uses single-row ball design, which has uneven contact pressure distribution. Especially when subjected to large loads, some rolling elements may bear excessive pressure, causing plastic deformation of the rolling elements, inner ring or outer ring, affecting the service life of the bearing.

[0005] There is no effective solution to the problems in the related art. UTILITY MODEL CONTENT

[0006] To solve the problems in the related art, the utility model provides a stainless steel deep groove ball bearing to overcome the above technical problems existing in the prior art.

[0007] Therefore, the utility model adopts the following specific technical solutions:

[0008] The utility model provides a stainless steel deep groove ball bearing, including coaxial stainless steel outer ring and stainless steel inner ring, a plurality of equidistant arrangement and double ring distribution ball are arranged between the circumferential inner side of stainless steel outer ring and the circumferential outer side of stainless steel inner ring, and the outer side of ball is equipped with retainer mechanism, the top of stainless steel outer ring is provided with oil injection hole, the inside of oil injection hole is provided with sealing plug, and both sides of stainless steel inner ring are provided with dustproof sealing baffle.

[0009] Further, in order to make the ball equidistant arrangement and double ring distribution, the load distribution is more uniform, the wear and heat accumulation caused by uneven load are reduced, the running stability of the bearing is improved, the circumferential inner side of the stainless steel outer ring is provided with two outer ring grooves matched with the ball, and the two outer ring grooves are parallel to each other and have the same shape; the circumferential outer side of the stainless steel inner ring is provided with two inner ring grooves matched with the ball, and the two inner ring grooves are parallel to each other and have the same shape.

[0010] Further, in order to ensure the accurate arrangement and spacing of the ball through the design of the inner retainer ring, the outer retainer ring, the double-sided ball limiting block and the single-sided ball limiting block, reduce the friction between the ball and the retainer, optimize the load distribution of the bearing, and effectively ensure the stable operation of the ball under high load, prevent the ball from being misaligned or deviated, reduce uneven wear, improve the carrying capacity of the bearing, the retainer mechanism includes an inner retainer ring and two outer retainer rings, the inner retainer ring is located between the two annularly arranged balls, and the outer retainer ring is located on both sides of the two annularly arranged balls; the circumferential outer edge of the inner retainer ring is provided with a plurality of double-sided ball limiting blocks matched with the ball, and the circumferential outer edge of the outer retainer ring is provided with a plurality of single-sided ball limiting blocks matched with the ball; the two sides of the inner retainer ring are provided with a plurality of equidistantly arranged inner threaded connecting columns, the inner side of the outer retainer ring is provided with a plurality of connecting column sleeves matched with the inner threaded connecting columns, and connecting bolts are arranged between the connecting column sleeves and the inner threaded connecting columns; the circumferential outer side of the inner retainer ring and between the inner threaded connecting columns and the double-sided ball limiting blocks is provided with an oil storage sponge.

[0011] Further, in order to ensure the accurate docking and fixing of each part of the bearing during operation through the outer ring limiting groove and the inner ring limiting groove, avoid structural looseness caused by external force or vibration, and enhance the stability of the bearing; dust, moisture and other pollutants are prevented from entering the inside of the bearing by using the dust cover, bearing failure caused by external factors is avoided, the circumferential inner side of the stainless steel outer ring is provided with an outer ring limiting groove, the circumferential outer side of the stainless steel inner ring is provided with an inner ring limiting groove, and the dustproof sealing baffle includes a limiting installation ring arranged between the outer ring limiting groove and the inner ring limiting groove, the side of the limiting installation ring away from the ball is provided with a dust cover, and the inner side of the dust cover is provided with sealing rings at the top and the bottom.

[0012] Further, in order to utilize the tangent design of the outer ring outer convex ring and the dust cover, the sealing performance and protection of the bearing in operation are ensured. The setting of the inner and outer ring outer convex rings effectively improves the anti-pollution ability and durability of the bearing, avoids the invasion of external impurities, reduces the maintenance difficulty, the outer ring outer convex rings are arranged on both sides of the outer ring, the inner ring outer convex rings are arranged on both sides of the inner ring, the outer circumferential edge of the outer ring outer convex ring is tangent to the outer circumferential edge of the dust cover, and the inner circumferential edge of the inner ring outer convex ring is tangent to the inner circumferential edge of the dust cover.

[0013] Further, in order to improve the sealing performance inside the bearing, ensure the accurate butt joint and fixation of the bearing components during operation, avoid structural looseness caused by external force or vibration, and enhance the stability of the bearing, outer ring sealing grooves matched with the sealing rings are arranged on the inner circumferential edges of both sides of the outer ring, and inner ring sealing grooves matched with the sealing rings are arranged on the outer circumferential edges of both sides of the inner ring.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model fully considers the operation requirements of the bearing under high speed, high load and harsh environment, integrates oil injection holes, sealing covers, dustproof sealing baffle plates and cage mechanisms and the like structures, effectively enhances the lubricating performance, dustproof performance and anti-pollution ability of the bearing, reduces the maintenance cost, and improves the running stability; in addition, the selection of the stainless steel material improves the corrosion resistance of the bearing, so that the bearing can also maintain a good working state in a humid or highly corrosive environment, thereby meeting the requirements of high requirement application scenarios.

[0016] 2. The equidistant arrangement and double-ring distribution of the balls can realize relatively uniform load distribution, reduce wear and heat accumulation caused by uneven load, and improve the running stability of the bearing; the outer ring, the inner ring and the balls made of stainless steel not only improve the corrosion resistance and oxidation resistance of the bearing, but also enhance the strength and stability of the overall structure.

[0017] 3. The dustproof sealing baffle plate effectively prevents dust, pollutants and moisture and the like external factors from entering the bearing interior, reduces the pollution of the balls and the cage, thereby improving the service life of the bearing; the sealing rings arranged on the top and bottom of the dust cover enhance the sealing effect, effectively prevent grease leakage, and guarantee the long-term stable work of the lubricating system of the bearing. DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 is a structure schematic view of a stainless steel deep groove ball bearing according to an embodiment of the present application;

[0020] Figure 2 is a structure schematic view of a stainless steel deep groove ball bearing removing dustproof sealing baffle according to an embodiment of the present application;

[0021] Figure 3 is a partial sectional view of a stainless steel deep groove ball bearing according to an embodiment of the present application;

[0022] Figure 4 is a sectional view of a stainless steel outer ring and a stainless steel inner ring in a stainless steel deep groove ball bearing according to an embodiment of the present application;

[0023] Figure 5 is Figure 4 is a local enlarged view of A in the figure;

[0024] Figure 6 is a structure schematic view of a retainer mechanism in a stainless steel deep groove ball bearing according to an embodiment of the present application;

[0025] Figure 7 is a structure schematic view of a dustproof sealing baffle in a stainless steel deep groove ball bearing according to an embodiment of the present application.

[0026] In the figure:

[0027] 1, stainless steel outer ring; 2, stainless steel inner ring; 3, ball; 4, retainer mechanism; 401, inner retainer ring; 402, outer retainer ring; 403, double-sided ball limiting block; 404, single-sided ball limiting block; 405, inner threaded connecting column; 406, connecting column sleeve; 407, connecting bolt; 408, oil storage sponge; 5, oil injection hole; 6, sealing plug; 7, dustproof sealing baffle; 701, limiting installation ring; 702, dust cover; 703, sealing ring; 8, outer ring groove; 9, inner ring groove; 10, outer ring limiting groove; 11, inner ring limiting groove; 12, outer ring outer protruding ring; 13, inner ring outer protruding ring; 14, outer ring sealing groove; 15, inner ring sealing groove. DETAILED DESCRIPTION

[0028] To further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can explain the operating principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the figure are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] The utility model discloses a stainless steel deep groove ball bearing.

[0030] The utility model further illustrates the present utility model with the drawings and specific embodiments, as shown in Figures 1-7 The stainless steel deep groove ball bearing provided by the embodiment of the utility model comprises a stainless steel outer ring 1 and a stainless steel inner ring 2 arranged coaxially, a plurality of equidistantly arranged and double-ring distributed ball bearings 3 are arranged between the inner circumferential side of the stainless steel outer ring 1 and the outer circumferential side of the stainless steel inner ring 2, and a retainer mechanism 4 is arranged on the outer side of the ball bearings 3.

[0031] By means of the above technical scheme, the utility model fully considers the operation requirement of the bearing under high speed, high load and harsh environment, integrates the oil injection hole 5, the sealing plug 6, the dustproof sealing baffle 7 and the retainer mechanism 4 and other structures, effectively enhances the lubricating property, the dustproof property and the anti-pollution ability of the bearing, reduces the maintenance cost, and improves the stability of operation; in addition, the selection of the stainless steel material improves the corrosion resistance of the bearing, so that the bearing can also maintain a good working state in a humid or highly corrosive environment, thereby meeting the requirement of high requirement application scene. By designing the equidistant arrangement and double-ring distribution of the ball bearings 3, uniform load distribution can be realized, wear and heat accumulation caused by uneven load can be reduced, and the operation stability of the bearing is improved; in combination with the outer ring, the inner ring and the ball bearings 3 made of stainless steel, not only the corrosion resistance and the oxidation resistance of the bearing are improved, but also the strength and stability of the overall structure are enhanced.

[0032] In one embodiment, for the above-mentioned stainless steel outer ring 1, two outer ring grooves 8 matched with the ball bearings 3 are arranged on the inner circumferential side of the stainless steel outer ring 1, the two outer ring grooves 8 are parallel to each other and have the same shape; two inner ring grooves 9 matched with the ball bearings 3 are arranged on the outer circumferential side of the stainless steel inner ring 2, the two inner ring grooves 9 are parallel to each other and have the same shape, so that the ball bearings 3 are arranged equidistantly and distributed in a double-ring shape, uniform load distribution can be realized, wear and heat accumulation caused by uneven load can be reduced, and the operation stability of the bearing is improved.

[0033] In one embodiment, for the above cage mechanism 4, the cage mechanism 4 includes an inner cage ring 401 located between the two annular arrangements of balls 3 and two outer cage rings 402 located on both sides of the two annular arrangements of balls 3; the inner cage ring 401 is provided with a plurality of double-sided ball limiting blocks 403 on the circumferential outer edge for cooperating with the balls 3, and the outer cage ring 402 is provided with a plurality of single-sided ball limiting blocks 404 on the circumferential outer edge for cooperating with the balls 3; the inner cage ring 401 is provided with a plurality of equidistantly arranged inner threaded connecting columns 405 on both sides, and the outer cage ring 402 is provided with a plurality of connecting column sleeves 406 on the inner side for cooperating with the inner threaded connecting columns 405, and the connecting column sleeves 406 and the inner threaded connecting columns 405 are provided with connecting bolts 407 therebetween; the inner cage ring 401 is provided with oil storage sponges 408 on the circumferential outer side and between the inner threaded connecting columns 405 and the double-sided ball limiting blocks 403, so as to ensure the accurate arrangement and spacing of the balls 3 through the design of the inner cage ring 401, the outer cage ring 402, the double-sided ball limiting blocks 403 and the single-sided ball limiting blocks 404, reduce the friction between the balls 3 and the cage, optimize the load distribution of the bearing, and effectively ensure the stable operation of the balls 3 under high load, prevent the balls 3 from being misaligned or deviated, reduce uneven wear, and improve the load-carrying capacity of the bearing.

[0034] In one embodiment, for the above stainless steel outer ring 1, the stainless steel outer ring 1 is provided with outer ring limiting grooves 10 on both sides of the circumferential inner part, the stainless steel inner ring 2 is provided with inner ring limiting grooves 11 on both sides of the circumferential outer part, and the dustproof sealing baffle 7 includes a limiting installation ring 701 arranged between the outer ring limiting grooves 10 and the inner ring limiting grooves 11, the limiting installation ring 701 is provided with a dust cover 702 on the side away from the balls 3, and the inner side top and bottom of the dust cover 702 are provided with sealing rings 703, so as to help ensure the accurate docking and fixing of the bearing components during operation through the outer ring limiting grooves 10 and the inner ring limiting grooves 11, avoid structural looseness caused by external force or vibration, and enhance the stability of the bearing; the dust cover 702 is used to prevent dust, moisture and other pollutants from entering the inside of the bearing, and avoid bearing failure caused by external factors.

[0035] In one embodiment, for the above stainless steel outer ring 1, the stainless steel outer ring 1 is provided with outer convex rings 12 on both sides, and the stainless steel inner ring 2 is provided with inner convex rings 13 on both sides; the circumferential inner edge of the outer convex ring 12 is tangent to the circumferential outer edge of the dust cover 702 at an inclined surface, and the circumferential outer edge of the inner convex ring 13 is tangent to the circumferential inner edge of the dust cover 702 at an inclined surface, so as to ensure the sealing and protection of the bearing during operation by the tangential design of the outer convex ring 12 and the dust cover 702. The setting of the inner and outer convex rings effectively improves the anti-pollution ability and durability of the bearing, avoids the invasion of external impurities, and reduces the maintenance difficulty.

[0036] In one embodiment, for the above-mentioned stainless steel outer ring 1, the outer ring sealing grooves 14 are arranged on the circumferential inner edges of both sides of the stainless steel outer ring 1, and the inner ring sealing grooves 15 are arranged on the circumferential outer edges of both sides of the stainless steel inner ring 2, which are matched with the sealing rings 703, thereby improving the sealing performance inside the bearing, ensuring the precise docking and fixing of each part of the bearing during operation, avoiding structural loosening caused by external force or vibration, and enhancing the stability of the bearing.

[0037] In order to facilitate the understanding of the above technical solutions of the present application, the working principle or operation mode of the present application in the actual process will be described in detail.

[0038] In actual application, the stainless steel deep groove ball bearing of the present application supports and carries the operation of the equipment under high speed and high load through close cooperation with the rotating shaft. The stainless steel outer ring 1 of the bearing is fixed on the equipment shell, and the stainless steel inner ring 2 is connected with the rotating shaft. When the equipment operates, the stainless steel inner ring 2 drives the ball 3 to roll along the outer ring groove 8 of the stainless steel outer ring 1, thereby realizing the rotating support of the bearing. The uniform arrangement of the ball 3 and the action of the retainer mechanism 4 enable the load to be evenly distributed, reducing local wear and heat accumulation, and ensuring the stability of operation. The design of the oil injection hole 5 and the sealing plug 6 ensures the supply of lubricating oil, reduces friction and prevents overheating, and the oil storage sponge 408 provides stable lubrication during long-time operation. In addition, the dustproof sealing baffle 7 effectively prevents dust and moisture from entering, ensures the cleanliness of the inside of the bearing, reduces the influence of external pollution on the bearing, and improves the adaptability and service life of the bearing in harsh environments. The optimized design of the entire bearing system in terms of load transmission, lubrication, dust prevention and sealing ensures its reliability in long-time efficient and stable operation.

[0039] In summary, by means of the technical scheme of the utility model, the operation requirement of the bearing under high speed, high load and severe environment is fully considered, the integrated oil injection hole 5, sealing plug 6, dustproof sealing baffle 7 and retainer mechanism 4 and other structures effectively enhance the lubricating property, dustproof property and anti-pollution ability of the bearing, reduce the maintenance cost and improve the running stability; in addition, the selection of the stainless steel material improves the corrosion resistance of the bearing, so that it can maintain a good working state in a humid or highly corrosive environment, thereby meeting the requirement of high requirement application scene; the equidistant arrangement and double ring distribution of the designed ball 3 can realize relatively uniform load distribution, reduce the wear and heat accumulation caused by uneven load and improve the running stability of the bearing; the combination of the outer ring, inner ring and ball 3 made of stainless steel not only improves the corrosion resistance and oxidation resistance of the bearing, but also enhances the strength and stability of the overall structure; the dustproof sealing baffle 7 effectively prevents dust, pollutants and moisture and other external factors from entering the bearing, reduces the pollution of the ball 3 and the retainer, thereby improving the service life of the bearing; and the sealing ring 703 is arranged at the top and bottom of the dust cover 702, which enhances the sealing effect, effectively prevents grease leakage and ensures the long-term stable work of the lubricating system of the bearing.

[0040] In the utility model, unless another definite provision and limitation, the terms "installation", "arrangement", "connection", "fixation", "screw connection" and other terms should be understood in a broad sense, for example, can be fixed connection, can be detachable connection or integrated; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stainless steel deep groove ball bearing comprising a stainless steel outer ring (1) and a stainless steel inner ring (2) arranged coaxially, characterized in that, The circumference inner side of the stainless steel outer ring (1) is provided with a plurality of equidistantly arranged and double-ring distributed ball bearings (3) matched with the circumference outer side of the stainless steel inner ring (2), and the outer side of the ball bearing (3) is sleeved with a retainer mechanism (4). The top of the stainless steel outer ring (1) is provided with an oil injection hole (5), and the inside of the oil injection hole (5) is provided with a sealing plug (6), and the two sides of the stainless steel inner ring (2) are provided with dustproof sealing baffle plates (7).

2. A stainless steel deep groove ball bearing according to claim 1, characterized in that The circumference inner side of the stainless steel outer ring (1) is provided with two outer ring grooves (8) matched with the ball bearings (3), and the two outer ring grooves (8) are parallel to each other and have the same shape. The circumference outer side of the stainless steel inner ring (2) is provided with two inner ring grooves (9) matched with the ball bearings (3), and the two inner ring grooves (9) are parallel to each other and have the same shape.

3. The stainless steel deep groove ball bearing of claim 1, wherein, The retainer mechanism (4) comprises an inner retaining ring (401) and two outer retaining rings (402), the inner retaining ring (401) is located between the two annularly arranged ball bearings (3), and the outer retaining ring (402) is located on both sides of the two annularly arranged ball bearings (3). The circumference outer edge of the inner retaining ring (401) is provided with a plurality of double-sided ball limiting blocks (403) matched with the ball bearings (3), and the circumference outer edge of the outer retaining ring (402) is provided with a plurality of single-sided ball limiting blocks (404) matched with the ball bearings (3). The two sides of the inner retaining ring (401) are provided with a plurality of equidistantly arranged inner threaded connecting columns (405), the inner side of the outer retaining ring (402) is provided with a plurality of connecting column sleeves (406) matched with the inner threaded connecting columns (405), and the connecting column sleeves (406) and the inner threaded connecting columns (405) are provided with connecting bolts (407) therebetween. The circumference outer side of the inner retaining ring (401) and between the inner threaded connecting columns (405) and the double-sided ball limiting blocks (403) is provided with an oil storage sponge (408).

4. The stainless steel deep groove ball bearing of claim 1, wherein, The circumference inner side of the stainless steel outer ring (1) is provided with outer ring limiting grooves (10) on both sides, and the circumference outer side of the stainless steel inner ring (2) is provided with inner ring limiting grooves (11) on both sides.

5. A stainless steel deep groove ball bearing according to claim 4, wherein The dustproof sealing baffle plate (7) comprises a limiting installation ring (701) arranged between the outer ring limiting groove (10) and the inner ring limiting groove (11), a dustproof cover (702) arranged on the side away from the ball bearing (3), and sealing rings (703) arranged on the inner side top and bottom of the dustproof cover (702).

6. A stainless steel deep groove ball bearing according to claim 5, wherein The two sides of the stainless steel outer ring (1) are provided with outer ring outer convex rings (12), the two sides of the stainless steel inner ring (2) are provided with inner ring outer convex rings (13), the circumference inner edge of the outer ring outer convex ring (12) is tangent to the circumference outer edge of the dustproof cover (702), and the circumference outer edge of the inner ring outer convex ring (13) is tangent to the circumference inner edge of the dustproof cover (702).

7. A stainless steel deep groove ball bearing according to claim 6, wherein The stainless steel outer ring (1) is provided with outer ring sealing grooves (14) on the circumferential inner edges of both sides, which are matched with the sealing rings (703); the stainless steel inner ring (2) is provided with inner ring sealing grooves (15) on the circumferential outer edges of both sides, which are matched with the sealing rings (703).

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