Leakage-proof bearing ring with high sealing performance

Abstract

The utility model discloses a high-leakproofness anti-leakage bearing ring which comprises a bearing ring body, an anti-leakage mechanism used for preventing lubricating oil from leaking is arranged on the bearing ring body, the bearing ring body comprises an outer ring, an oil injection hole used for injecting the lubricating oil is formed in the outer ring, and a through hole is formed in one side of an inner cavity of the oil injection hole; the anti-leakage mechanism comprises a hemisphere used for blocking the oil injection hole and a sealing piece, the hemisphere is arranged in an inner cavity of the through hole, and a supporting piece is further arranged in the inner cavity of the through hole. The adjusting piece is additionally arranged between the hemispheroid and the supporting piece, when the elasticity of the spring is reduced after the spring is used for a long time, the distance between the threaded sleeve and the hemispheroid can be adjusted by rotating the stud, and then one end of the spring is pushed or pulled to adjust the elastic coefficient of the spring, so that the utilization rate of the spring is effectively improved, and the service life of the spring is prolonged. And the service life of the anti-leakage mechanism is prolonged, it is guaranteed that the hemisphere can normally move and reset, and the phenomenon of leakage of the bearing during high-speed rotation is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing rings, and in particular relates to a high-sealing anti-leakage bearing ring. Background Art

[0002] Bearings are mechanical rotating bodies used as supports to reduce the friction coefficient during movement and ensure rotation accuracy. Bearings include bearing rings. In order to reduce the noise and heat generated during the use of bearings, lubricating oil needs to be injected into the bearing rings for lubrication.

[0003] The patent document announced as CN218408182U discloses a bearing ring with good sealing performance, including a bearing ring body, the bearing ring body is provided with an oil filling hole; a fixing ring is fixedly installed in the oil filling hole, a spring is fixedly arranged on the fixing ring, a ball is fixedly connected to the end of the spring away from the fixing ring, a sealing ring is fixedly arranged in the oil filling hole, and the ball is in active sealing contact with the sealing ring; oil can be easily filled into the bearing, and after the oil filling is completed, the ball can be reset to contact and seal with the sealing ring, thereby achieving a good sealing effect.

[0004] In the above technical solution, the bearing sleeve enables the ball to move and reset through the elastic deformation of the spring, so that a sealing effect is achieved through the contact between the ball and the sealing ring. However, the spring is prone to deformation and change in elasticity due to long-term use or environmental problems, which makes it difficult for the ball to contact closely with the sealing ring to achieve a sealing effect. As a result, the lubricating oil will leak out when the bearing rotates at high speed. Utility Model Content

[0005] The utility model aims to provide a highly sealing anti-leakage bearing ring to solve the technical defects of the existing bearing rings, such as the springs being easily deformed and unstable, being difficult to seal, and being prone to leakage during high-speed rotation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-sealing anti-leakage bearing ring comprises a bearing ring body on which an anti-leakage mechanism for preventing lubricating oil from leaking is arranged.

[0008] The bearing ring body comprises an outer ring, an oil injection hole for injecting lubricating oil is provided on the outer ring, and a through hole is provided on one side of the inner cavity of the oil injection hole.

[0009] The anti-leakage mechanism includes a hemisphere and a seal arranged in the inner cavity of the through hole and used to seal the oil filling hole. The inner cavity of the through hole is also provided with a support member, a spring is arranged between the support member and the hemisphere, and an adjustment member for adjusting the spring elastic coefficient is arranged on the support member. The hemisphere is movably connected to the adjustment member.

[0010] As a further solution of the utility model, the support member includes a support plate arranged in the inner cavity of the through hole, and four support rods equidistantly distributed in a ring shape are fixedly connected between the support plate and the inner wall surface of the through hole, wherein two oppositely arranged support rods are fixedly connected to guide rods, and both sides of the surface of the hemisphere are fixedly connected to a first sliding sleeve that can be slidably mounted on the corresponding guide rod surface.

[0011] As a further solution of the utility model, the adjusting member includes a stud rotatably connected to one side of the support plate, one end of the stud movably penetrates into the inner cavity of the oil filling hole, a threaded sleeve is threadedly sleeved on the surface of the stud, and a spring is located between the threaded sleeve and the hemisphere.

[0012] As a further preferred solution of the utility model, the spring sleeve is arranged on the surface of the stud, and the two ends of the spring are respectively fixedly connected to the hemisphere and the screw sleeve.

[0013] As a further preferred solution of the utility model, second sliding sleeves are integrally formed on both sides of the surface of the screw sleeve, and the second sliding sleeves are slidably sleeved on the surface of the corresponding guide rod.

[0014] As a further preferred embodiment of the present invention, a hexagonal hole is provided at one end of the stud away from the support plate.

[0015] As a preferred solution of the utility model, the sealing member includes a groove opened in the inner cavity of the oil filling hole close to the through hole, a sealing ring is embedded in the inner cavity of the groove, and the inner wall surface of the sealing ring contacts the surface of the hemisphere.

[0016] As a further preferred embodiment of the present invention, the seal also includes a sealing ring, the hemisphere is provided with a through hole for the stud to pass through, the sealing ring is fixedly connected to the inner wall surface of the through hole, and the inner wall surface of the sealing ring contacts the surface of the stud.

[0017] Compared with the prior art, the high-sealing anti-leakage bearing ring provided by the utility model has the following beneficial effects:

[0018] 1. When the elasticity of the spring in the utility model decreases after long-term use, the elastic coefficient of the spring can be adjusted by rotating the stud to adjust the distance between the screw sleeve and the hemisphere, and then pushing or pulling one end of the spring, thereby effectively improving the utilization rate of the spring, extending the service life of the anti-leakage mechanism, ensuring that the hemisphere can be moved and reset normally, and preventing the bearing from leaking when rotating at high speed;

[0019] 2. In the utility model, the spring sleeve is arranged on the stud, which can limit the spring through the stud, so that the reverse elastic force generated by the spring during compression can always be in the same straight line with the direction of the pressure, avoiding the spring from tilting and further extending the service life of the anti-leakage mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of point A;

[0023] Figure 3 This is a schematic cross-sectional view of the outer ring and the anti-leakage mechanism in the embodiment of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the anti-leakage mechanism in the embodiment of the utility model.

[0025] Reference numerals:

[0026] 1. Bearing ring body; 11. Outer ring; 12. Oil filling hole; 13. Through hole;

[0027] 2. Anti-leakage mechanism; 21. Hemisphere; 211. First sliding sleeve; 22. Support member; 221. Support plate; 222. Support rod; 223. Guide rod; 23. Spring; 24. Adjustment member; 241. Stud; 2411. Hexagonal hole; 242. Screw sleeve; 243. Second sliding sleeve; 25. Sealing member; 251. Groove; 252. Sealing ring gasket; 253. Sealing ring sleeve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the 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.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] See attached Figure 1-Figure 4 As shown, an embodiment of the utility model provides a high-sealing anti-leakage bearing ring, comprising a bearing ring body 1 and an anti-leakage mechanism 2 provided on the bearing ring body 1 and used to prevent the leakage of lubricating oil.

[0032] The bearing ring body 1 comprises an outer ring 11 , on which an oil injection hole 12 for injecting lubricating oil is provided, and a through hole 13 is provided on one side of the inner cavity of the oil injection hole 12 .

[0033] See attached Figure 2 As shown, the anti-leakage mechanism 2 includes a hemispherical body 21 and a sealing member 25 which are arranged in the inner cavity of the through hole 13 and are used to seal the oil filling hole 12. The inner cavity of the through hole 13 is also provided with a supporting member 22. A spring 23 is arranged between the supporting member 22 and the hemispherical body 21. An adjusting member 24 for adjusting the elastic coefficient of the spring 23 is arranged on the supporting member 22. The hemispherical body 21 is movably connected to the adjusting member 24.

[0034] See attached Figure 3-4 As shown, in order to provide a mounting base for the adjustment member 24 and enable the hemisphere 21 to move stably along the axial direction of the guide rod 223, in an embodiment of the utility model, the support member 22 includes a support plate 221 arranged in the inner cavity of the through hole 13, and four annular equidistantly distributed support rods 222 are fixedly connected between the support plate 221 and the inner wall surface of the through hole 13, wherein two oppositely arranged support rods 222 are fixedly connected with the guide rod 223, and both sides of the surface of the hemisphere 21 are fixedly connected with a first sliding sleeve 211 that can be slidably sleeved on the surface of the corresponding guide rod 223.

[0035] Specifically, in order to be able to adjust the distance between the screw sleeve 242 and the hemisphere 21 so as to adjust the elastic coefficient of the spring 23, the adjusting member 24 in the embodiment of the utility model includes a stud 241 rotatably connected to one side of the support plate 221, one end of the stud 241 movably penetrates into the inner cavity of the oil filling hole 12, and the surface of the stud 241 is threadedly sleeved with the screw sleeve 242, and the spring 23 is located between the screw sleeve 242 and the hemisphere 21.

[0036] In order to ensure that the reverse elastic force generated by the spring 23 during compression is always in the same straight line as the direction of the pressure and to prevent the spring 23 from tilting, in the embodiment of the utility model, the spring 23 is sleeved on the surface of the stud 241, and the two ends of the spring 23 are respectively fixedly connected to the hemisphere 21 and the screw sleeve 242.

[0037] Specifically, in order to limit the screw sleeve 242 so that the screw sleeve 242 can stably move along the axial direction of the stud 241, a second sliding sleeve 243 is integrally formed on both sides of the surface of the screw sleeve 242 in the embodiment of the utility model, and the second sliding sleeve 243 is slidably sleeved on the surface of the corresponding guide rod 223.

[0038] Specifically, in order to facilitate the rotation of the stud 241 with a hexagonal wrench, a hexagonal hole 2411 is formed at one end of the stud 241 away from the support plate 221 .

[0039] In order to improve the sealing between the hemisphere 21 and the oil filling hole 12, the sealing member 25 includes a groove 251 opened in the inner cavity of the oil filling hole 12 near the side of the through hole 13, and a sealing ring gasket 252 is embedded in the inner cavity of the groove 251, and the inner wall surface of the sealing ring gasket 252 contacts the surface of the hemisphere 21.

[0040] When the high-sealing anti-leakage bearing ring of the above technical solution is adopted, the hexagonal wrench is placed in the inner cavity of the hexagonal hole 2411 and the stud 241 is rotated. The stud 241 drives the screw sleeve 242 to move on the surface of the stud 241. The screw sleeve 242 drives the second sliding sleeve 243 to slide on the surface of the corresponding guide rod 223. The screw sleeve 242 can push or pull the spring 23, and then the elastic coefficient of the spring 23 can be adjusted to ensure that the hemisphere 21 can move and reset normally.

[0041] After the adjustment is completed, the lubricating oil can be sucked into the syringe, and the syringe is inserted into the oil filling hole 12 to apply pressure to the hemisphere 21, so that the hemisphere 21 drives the first sliding sleeve 211 to slide on the surface of the corresponding guide rod 223 until the hemisphere 21 is away from the sealing ring gasket 252. The hemisphere 21 compresses the spring 23. At this time, the lubricating oil in the syringe can be injected into the bearing through the gap between the hemisphere 21 and the sealing ring gasket 252; after the oil filling is completed, the syringe is taken out, and finally the elastic force of the spring 23 can make the hemisphere 21 automatically reset and contact with the sealing ring gasket 252 to seal the oil filling hole 12.

[0042] In order to improve the sealing between the stud 241 and the hemispherical body 21, the seal 25 in the embodiment of the utility model also includes a sealing ring 253. The hemispherical body 21 is provided with a through hole for the stud 241 to pass through. The sealing ring 253 is fixedly connected to the inner wall surface of the through hole, and the inner wall surface of the sealing ring 253 contacts the surface of the stud 241.

[0043] The embodiment of the utility model adds an adjusting member 24 between the hemispherical body 21 and the supporting member 22. When the elasticity of the spring 23 decreases after long-term use, the distance between the screw sleeve 242 and the hemispherical body 21 can be adjusted by rotating the stud 241, and then one end of the spring 23 can be pushed or pulled to adjust the elastic coefficient of the spring 23, thereby effectively improving the utilization rate of the spring 23, extending the service life of the anti-leakage mechanism 2, ensuring that the hemispherical body 21 can be moved and reset normally, and preventing the bearing from leaking when rotating at high speed;

[0044] The spring 23 is sleeved on the stud 241, which can limit the spring 23 through the stud 241, so that the reverse elastic force generated by the spring 23 during compression can always be in the same straight line as the direction of the pressure, avoiding the spring 23 from tilting, thereby further extending the service life of the anti-leakage mechanism 2.

[0045] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly leak-proof bearing ring, comprising a bearing ring body (1) on which is provided an anti-leakage mechanism (2) for preventing lubricating oil from leaking, characterized in that: The bearing ring body (1) comprises an outer ring (11), an oil injection hole (12) for injecting lubricating oil is provided on the outer ring (11), and a through hole (13) is provided on one side of the inner cavity of the oil injection hole (12); The anti-leakage mechanism (2) comprises a hemispherical body (21) and a sealing member (25) which are arranged in the inner cavity of the through hole (13) and are used to block the oil filling hole (12). The inner cavity of the through hole (13) is also provided with a support member (22). A spring (23) is arranged between the support member (22) and the hemispherical body (21). An adjusting member (24) for adjusting the elastic coefficient of the spring (23) is arranged on the support member (22). The hemispherical body (21) is movably connected to the adjusting member (24).

2. A high-sealing anti-leakage bearing ring according to claim 1, characterized in that: The support member (22) comprises a support plate (221) disposed in the inner cavity of the through hole (13); four support rods (222) equidistantly distributed in an annular shape are fixedly connected between the support plate (221) and the inner wall surface of the through hole (13); two of the support rods (222) disposed opposite to each other are fixedly connected to guide rods (223); and first sliding sleeves (211) capable of being slidably sleeved on the surfaces of corresponding guide rods (223) are fixedly connected to both sides of the surface of the hemispherical body (21).

3. A high-sealing anti-leakage bearing ring according to claim 2, characterized in that: The adjusting member (24) comprises a stud (241) rotatably connected to one side of the support plate (221), one end of the stud (241) movably penetrates the inner cavity of the oil filling hole (12), a threaded sleeve (242) is threadedly sleeved on the surface of the stud (241), and the spring (23) is located between the threaded sleeve (242) and the hemisphere (21).

4. A high-sealing anti-leakage bearing ring according to claim 3, characterized in that: The spring (23) is sleeved on the surface of the stud (241), and two ends of the spring (23) are respectively fixedly connected to the hemispherical body (21) and the screw sleeve (242).

5. The high-sealing anti-leakage bearing ring according to claim 3, characterized in that: Second sliding sleeves (243) are integrally formed on both sides of the surface of the screw sleeve (242), and the second sliding sleeve (243) is slidably sleeved on the surface of the corresponding guide rod (223).

6. The high-sealing anti-leakage bearing ring according to claim 3, characterized in that: A hexagonal hole (2411) is formed at one end of the stud (241) away from the support plate (221).

7. The high-sealing anti-leakage bearing ring according to claim 1, characterized in that: The sealing member (25) comprises a groove (251) formed in the inner cavity of the oil filling hole (12) close to the through hole (13), a sealing ring gasket (252) being embedded in the inner cavity of the groove (251), and an inner wall surface of the sealing ring gasket (252) is in contact with the surface of the hemispherical body (21).

8. The high-sealing anti-leakage bearing ring according to claim 7, characterized in that: The sealing member (25) further comprises a sealing ring (253); the hemispherical body (21) is provided with a through hole for the stud (241) to pass through; the sealing ring (253) is fixedly connected to the inner wall surface of the through hole; the inner wall surface of the sealing ring (253) contacts the surface of the stud (241).

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