Wear-resistant bearing ring

Abstract

The utility model discloses a wear-resistant bearing ring which comprises an inner ring, an outer ring and balls, a sealing ring is embedded between the inner ring and the outer ring, a first inner clamping groove is formed in the inner wall of the outer ring, a first transition inclined plane is arranged between the first inner clamping groove and the inner wall of the outer ring, and a first protruding part corresponding to the first inner clamping groove is arranged on the outer wall of the sealing ring; a second inner clamping groove is formed in the outer wall of the inner ring, a second transition inclined face is arranged between the second inner clamping groove and the outer wall of the inner ring, and a second protruding part corresponding to the second inner clamping groove is arranged on the inner wall of the sealing ring. The sealing device is novel in structure, has a dustproof function and is good in sealing performance, and the sealing ring is easy, flexible and convenient to disassemble and assemble.

Description

Technical Field

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

[0002] Bearing rings are commonly used mechanical transmission parts. Existing bearing rings have the following defects during use: poor sealing, external dust can easily enter the raceway through the annular gap between the inner ring and the outer ring, causing the ball to wear too quickly.

[0003] The existing patent document (Announcement No.: CN216519173U) discloses a "corrosion-resistant bearing ring", the technical solution of which is that the sealing cover is screwed to the outer ring by fastening bolts, and tools are needed for disassembly and assembly, which is inconvenient and also has the above-mentioned technical problems. Summary of the Invention

[0004] The utility model aims to solve the above technical problems existing in the prior art and provide a wear-resistant bearing ring with novel structure, dustproof function, good sealing performance, simple and convenient disassembly and assembly of the sealing ring.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A wear-resistant bearing ring comprises an inner ring, an outer ring, and a ball bearing. The ring features a sealing ring embedded between the inner and outer rings, a first inner groove on the inner wall of the outer ring, a first transition slope between the first inner groove and the inner wall of the outer ring, and a first raised portion on the outer wall of the sealing ring corresponding to the first inner groove. The ring also features a second inner groove on the outer wall of the inner ring, a second transition slope between the second inner groove and the outer wall of the inner ring, and a second raised portion on the inner wall of the sealing ring corresponding to the second inner groove. This bearing ring has a novel structure, is dustproof, and offers excellent sealing performance. The sealing ring is easy to assemble and disassemble, providing flexibility and convenience.

[0007] Furthermore, an oil injection channel is provided on the outer ring and is connected to the inner raceway of the outer ring. Lubricating oil is added to the oil injection channel to lubricate the inner raceway of the outer ring, the balls, and the outer raceway of the inner ring, thereby reducing wear and facilitating oiling.

[0008] Furthermore, the diameter of the oil filling channel increases step by step from the inlet to the outlet, thereby increasing the oil capacity of the oil filling channel and preventing the lubricating oil from easily overflowing during the refueling process due to the small oil capacity of the oil filling channel.

[0009] Furthermore, the sealing ring comprises a first ring body and a second ring body. The second ring body is provided with a connector, and the first ring body is provided with a slot corresponding to the connector, so that the first ring body can be detachably connected to the second ring body. The sealing ring can be disassembled into two parts, facilitating separate manufacturing and reducing manufacturing requirements. Damaged parts can be replaced separately, while intact parts can continue to be used, thereby improving material utilization. During installation, the first ring body can be first installed into the annular gap between the outer ring and the inner ring, and the second ring body can then be positioned and installed on the first ring body. This simplifies installation and avoids the difficulty of squeezing when the sealing ring is thick.

[0010] Furthermore, the connecting member includes a column portion and a spherical portion, the spherical portion is disposed on the column portion, the cross-sectional diameter of the spherical portion is larger than the cross-sectional diameter of the column portion, and the slot includes a first slotted hole and a second slotted hole, the first slotted hole and the second slotted hole being connected, the first slotted hole corresponding to the column portion, and the second slotted hole corresponding to the spherical portion. The spherical portion is squeezed and deformed to be able to enter the first slotted hole. When the spherical portion reaches the second slotted hole, the column portion is located in the first slotted hole, and the spherical portion returns to its original shape, preventing the column portion from freely escaping from the first slotted hole, thereby preventing the first and second ring bodies from freely separating and ensuring reliable assembly.

[0011] Furthermore, a through hole is provided on the spherical portion, which provides the spherical portion with deformation space, facilitates the spherical portion to be installed in the second slot, and reduces the difficulty of assembly.

[0012] Furthermore, the inner ring's center hole has flared ends, which makes assembly between the inner ring and the shaft easier and reduces assembly difficulty.

[0013] Furthermore, the surfaces of the inner and outer rings are coated with a wear-resistant layer. The wear-resistant layer can be made of silicon carbide, which improves the wear resistance of the inner and outer rings, making them less prone to wear and extending their service life.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0015] 1. The first protrusion is embedded in the first inner groove and the second protrusion is embedded in the second inner groove. The inside and outside are restricted at the same time, so that the sealing ring is limited between the outer ring and the inner ring, is not easy to fall off freely, and is stable and reliable to install. Compared with the right-angle structure, by setting the first transition bevel and the second transition bevel, when installing the sealing ring, the deformation degree of the first protrusion and the second protrusion does not need to be very large, and they can be correspondingly embedded in the first inner groove and the second inner groove, thereby reducing the difficulty of installing the sealing ring.

[0016] 2. The sealing ring can be disassembled into two parts, which is convenient for separate manufacturing and reduces manufacturing requirements. The damaged part can be replaced separately, and the intact part can continue to be used, which improves material utilization. During assembly, the spherical part is squeezed to deform it to be able to enter the first slot. When the spherical part reaches the second slot, the column part is located in the first slot, and the spherical part returns to its original shape, preventing the column part from freely escaping from the first slot, so that the first ring body and the second ring body cannot be separated freely, and the assembly is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic structural diagram of embodiment 1 of the present utility model;

[0019] Figure 2 Schematic diagram of the structure of the inner ring in Example 1;

[0020] Figure 3 Schematic diagram of the structure of the outer ring in Example 1;

[0021] Figure 4 This is a schematic structural diagram of the second embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the exploded view of the sealing ring in Example 2.

[0023] In the figure: 1-inner ring; 2-outer ring; 3-ball; 4-oil injection channel; 5-sealing ring; 6-first inner groove; 7-first transition slope; 8-first protrusion; 9-second inner groove; 10-second transition slope; 11-second protrusion; 12-first ring body; 13-second ring body; 14-connecting piece; 15-column part; 16-spherical part; 17-groove; 18-first slot; 19-second slot; 20-through hole. DETAILED DESCRIPTION

[0024] like Figures 1 to 3 As shown, this is the first embodiment of the present invention

[0025] A wear-resistant bearing ring comprises an inner ring 1, an outer ring 2, and balls 3. Balls 3 are located between the outer raceway of inner ring 1 and the inner raceway of outer ring 2. An oil injection channel 4 is defined on outer ring 2 and communicates with the inner raceway of outer ring 2. Lubricating oil is added to oil injection channel 4 to lubricate the inner raceway of outer ring 2, balls 3, and the outer raceway of inner ring 1, reducing wear and facilitating refueling.

[0026] The diameter of the oil filling channel 4 increases step by step from the inlet to the outlet, thereby increasing the oil capacity of the oil filling channel 4 and preventing the lubricating oil from easily overflowing during the refueling process due to the small oil capacity of the oil filling channel 4.

[0027] A sealing ring 5 is embedded between the inner ring 1 and the outer ring 2. The sealing ring 5 can be made of rubber to form an elastic seal. The sealing ring 5 is easy to assemble and disassemble and can be used immediately after assembly. The sealing ring 5 seals the annular gap between the outer ring 2 and the inner ring 1 to prevent dust and other external foreign matter from entering through the annular gap, keeping the ball 3 rotating in a clean environment, reducing wear and extending the service life.

[0028] A first inner groove 6 is provided on the inner wall of the outer ring 2, a first transition inclined surface 7 is provided between the first inner groove 6 and the inner wall of the outer ring 2, and a first protrusion 8 corresponding to the first inner groove 6 is provided on the outer wall of the sealing ring 5; a second inner groove 9 is provided on the outer wall of the inner ring 1, a second transition inclined surface 10 is provided between the second inner groove 9 and the outer wall of the inner ring 1, and a second protrusion 11 corresponding to the second inner groove 9 is provided on the inner wall of the sealing ring 5.

[0029] The first protrusion 8 is embedded in the first inner groove 6 and the second protrusion 11 is embedded in the second inner groove 9. The inside and outside are restricted at the same time, so that the sealing ring 5 is limited between the outer ring 2 and the inner ring 1. It is not easy to fall off freely and the installation is stable and reliable.

[0030] Compared with the right-angle structure, by setting the first transition bevel 7 and the second transition bevel 10, when installing the sealing ring 5, the deformation degree of the first protrusion 8 and the second protrusion 11 does not need to be very large, and they can be correspondingly embedded in the first inner groove 6 and the second inner groove 9, thereby reducing the difficulty of installing the sealing ring 5.

[0031] The two ends of the center hole of the inner ring 1 are flared, which facilitates the assembly of the inner ring 1 and the rotating shaft and reduces the difficulty of assembly.

[0032] The surfaces of the inner ring 1 and the outer ring 2 are coated with a wear-resistant layer. The wear-resistant layer can be made of silicon carbide, which improves the wear resistance of the inner ring 1 and the outer ring 2, makes them less prone to wear, and prolongs their service life.

[0033] like Figure 4 and Figure 5 As shown, this is the second embodiment of the present utility model

[0034] In the technical solution based on Example 1, the sealing ring 5 includes a first ring body 12 and a second ring body 13, the first protrusion 8 is arranged on the outer wall of the first ring body 12, the second protrusion 11 is arranged on the inner wall of the first ring body 12, and the second ring body 13 is provided with a connecting member 14, the connecting member 14 includes a columnar portion 15 and a spherical portion 16, the spherical portion 16 is arranged on the columnar portion 15, the columnar portion 15 is arranged on the second ring body 13, the cross-sectional diameter of the spherical portion 16 is larger than the cross-sectional diameter of the columnar portion 15, and a card slot 17 is opened on the first ring body 12, the card slot 17 includes a first slot hole 18 and a second slot hole 19, the first slot hole 18 is connected to the second slot hole 19, the first slot hole 18 corresponds to the columnar portion 15, and the second slot hole 19 corresponds to the spherical portion 16.

[0035] The sealing ring 5 can be disassembled into two parts, which is convenient for separate manufacturing, reduces manufacturing requirements, and the damaged part can be replaced separately, and the intact part can continue to be used, thereby improving material utilization. During assembly, the spherical part 16 is squeezed to deform it to the point where it can enter the first slot 18. When the spherical part 16 reaches the second slot 19, the column part 15 is located in the first slot 18, and the spherical part 16 returns to its original shape, preventing the column part 15 from freely escaping from the first slot 18, so that the first ring body 12 and the second ring body 13 cannot be separated freely, and the assembly is reliable.

[0036] When installing the sealing ring 5, the first ring body 12 can be first installed in the annular gap between the outer ring 2 and the inner ring 1, and then the second ring body 13 can be positioned and installed on the first ring body 12, which reduces the difficulty of installation and avoids the inconvenience of squeezing and installing when the thickness of the sealing ring 5 is large.

[0037] The spherical portion 16 is provided with a through hole 20 , which provides the spherical portion 16 with a deformation space, facilitates the spherical portion 16 to be installed into the second slot 19 , and reduces the difficulty of assembly.

[0038] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A wear-resistant bearing ring, comprising: Inner ring, outer ring and balls, Its characteristics are: A sealing ring is embedded between the inner ring and the outer ring, a first inner groove is provided on the inner wall of the outer ring, a first transition slope is provided between the first inner groove and the inner wall of the outer ring, and a first protrusion corresponding to the first inner groove is provided on the outer wall of the sealing ring; A second inner groove is provided on the outer wall of the inner ring, a second transition slope is provided between the second inner groove and the outer wall of the inner ring, and a second protrusion corresponding to the second inner groove is provided on the inner wall of the sealing ring.

2. The wear-resistant bearing ring according to claim 1, characterized in that: The outer ring is provided with an oil injection channel which is connected with the inner raceway of the outer ring.

3. The wear-resistant bearing ring according to claim 2, characterized in that: The diameter of the oil injection channel increases step by step from the inlet to the outlet.

4. The wear-resistant bearing ring according to claim 1, characterized in that: The sealing ring includes a first ring body and a second ring body, the second ring body is provided with a connecting piece, and the first ring body is provided with a slot corresponding to the connecting piece, so that the first ring body can be detachably connected to the second ring body.

5. The wear-resistant bearing ring according to claim 4, characterized in that: The connecting member includes a columnar portion and a spherical portion, the spherical portion is arranged on the columnar portion, the cross-sectional diameter of the spherical portion is larger than the cross-sectional diameter of the columnar portion, and the slot includes a first slot hole and a second slot hole, the first slot hole is connected to the second slot hole, the first slot hole corresponds to the columnar portion, and the second slot hole corresponds to the spherical portion.

6. The wear-resistant bearing ring according to claim 5, characterized in that: The spherical body is provided with a through hole.

7. The wear-resistant bearing ring according to claim 1, characterized in that: Both ends of the central hole of the inner ring are in a flared structure.

8. The wear-resistant bearing ring according to claim 1, characterized in that: The surfaces of the inner ring and the outer ring are both coated with a wear-resistant layer.

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