Ceramic bearing ring

Abstract

The embodiment of the utility model discloses a ceramic bearing ring in the technical field of bearing rings. When lubricating oil needs to be conveyed to the oil storage area, the sealing assembly is taken down, the oil inlet assembly upwards moves out of a groove cavity of the second limiting groove, and the fixing block synchronously moves out of the upper end of a groove cavity of the fifth limiting groove from a groove cavity of the third limiting groove. And then the fixing block is rotated, so that the annular sliding block rotates in a groove cavity of the annular sliding groove, the fixing block is located at the top of the ceramic outer ring, and the fixing block is tightly attached to the top wall of the ceramic outer ring under the pushing of the spring to the oil conveying pipe. Lubricating oil is injected into the oil inlet, the lubricating oil is input into the hole cavity of the oil inlet through the oil conveying pipe and the middle hole of the piston and finally conveyed to the oil storage area, the oil inlet end of the oil inlet assembly is arranged on the side edge of the ceramic outer ring, and after the lubricating oil in the oil storage area is reduced, the lubricating oil can be continuously injected into the oil storage area in cooperation with the oil inlet assembly.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of bearing rings, and in particular to a ceramic bearing ring. Background Art

[0002] Ceramic bearing rings have the characteristics of high temperature resistance, corrosion resistance, anti-electromagnetic insulation, oil-free self-lubrication, high speed, etc. They can be used in extremely harsh environments and special working conditions. They can be widely used in aviation, aerospace, navigation, electronic equipment, metallurgy, electricity, medical equipment, scientific research, national defense and military fields.

[0003] For example, a hybrid ceramic cylindrical roller bearing ring disclosed in Chinese patent application number CN202122991312.1 has the following specific contents: the side surface of the oil inlet pipe is movably connected to the inside of the sealing ring. When in use, after the flip cover is opened, the fixing bar is held and rotated to rotate the second ring block, so that the oil inlet pipe rotates in the threaded hole of the ceramic outer ring, and the oil inlet pipe is screwed out from the top of the ceramic outer ring, so that it is kept away from the surface of the ceramic outer ring when refueling to prevent the surface of the ceramic outer ring from being contaminated, and the first ring block at the bottom end of the oil inlet pipe rotates and drives the pressure block to move upward, so that the pressure block compresses the sealing ring upward to make the sealing thread The bottom end of the hole prevents the lubricating oil from flowing back into the threaded hole, thereby improving the sealing effect of the oil filling at the bearing ring. After the oil filling operation is completed, the second ring block is reversed to rotate the oil inlet pipe downward in the threaded hole, so that the second ring block at the top of the oil inlet pipe moves down into the circular groove, and the top of the oil inlet pipe can be blocked by closing the flip cover. At the same time, the two fixed blocks drive the pressure block to move downward, so that the annular push pad at the bottom of the pressure block moves downward. Due to the rough setting of the side surface of the annular push pad, the lubricating oil at the inner wall of the oil groove can be pushed down into the raceway, thereby facilitating the lubrication operation of the rollers in the bearing ring. It has the following technical problems:

[0004] When common bearings are in use, the ceramic outer ring of the bearing will be fixed in the bearing seat hole, and the arc-shaped outer wall of the ceramic outer ring of the bearing will be close to the inner wall of the bearing seat hole. The oil inlet of the oil inlet pipe is set at the arc-shaped outer wall of the ceramic outer ring of the bearing, so that after the bearing is installed in the bearing seat hole, lubricating oil cannot be injected into the bearing again, resulting in a decrease in the lubrication degree of the bearing after long-term use, and it is difficult to inject lubricating oil into the bearing. Utility Model Content

[0005] To this end, an embodiment of the utility model provides a ceramic bearing ring to solve the problem in the prior art that it is difficult to inject lubricating oil into the bearing again after the bearing is installed in the bearing seat hole.

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

[0007] A ceramic bearing ring comprises a ceramic outer ring.

[0008] A ceramic inner ring is installed on the inner side of the ceramic outer ring, a rolling ball is installed between the ceramic inner ring and the ceramic outer ring, and an oil storage area is formed between the ceramic inner ring and the ceramic outer ring.

[0009] An oil inlet assembly for facilitating the delivery of lubricating oil is installed inside the ceramic outer ring, and a sealing assembly for sealing the oil inlet end of the oil inlet assembly is installed on the upper end of the oil inlet assembly.

[0010] The oil inlet assembly includes a piston, an oil pipe is installed on the upper end of the piston, a spring for controlling the downward movement of the oil pipe is installed in the middle of the oil pipe, and an oil inlet pipe for conveying lubricating oil to the inside of the oil pipe is installed on the upper end of the oil pipe.

[0011] Furthermore, an oil inlet hole is opened inside the ceramic outer ring, and the oil inlet hole is an L-shaped cavity, the upper end of the oil inlet hole is connected to a first limiting groove, and the upper end of the first limiting groove is connected to a second limiting groove for limiting the oil inlet pipe.

[0012] Furthermore, a third limiting groove is opened on the left and right sides of the second limiting groove, a fourth limiting groove is arranged on the upper end of the second limiting groove, a fifth limiting groove is opened on the left and right sides of the fourth limiting groove, and a threaded hole is opened at the lower end of the groove cavity of the fifth limiting groove.

[0013] Furthermore, a limit block for cooperating with a spring to control the piston to move downward is installed at the lower end of the oil delivery pipe, and an oil inlet is opened in the middle of the oil inlet pipe.

[0014] Furthermore, an annular groove is provided on the outer wall of the oil inlet pipe, and the oil inlet assembly includes a fixed block for limiting the oil inlet pipe. An annular slider is installed on the inner wall of the fixed block, and the annular slider slides in the groove cavity of the annular groove.

[0015] Furthermore, the sealing assembly includes a sealing plate for closing the fourth limiting groove, connecting rods are installed at the left and right ends of the sealing plate, and the connecting rods are in the groove cavity of the fifth limiting groove, one end of the connecting rod is installed with a bolt for cooperating with the threaded hole to limit the sealing assembly, and the bottom end of the sealing plate is installed with a sealing plug for sealing the middle hole of the oil pipeline.

[0016] The utility model embodiment has the following advantages:

[0017] When it is necessary to deliver lubricating oil to the oil storage area, remove the sealing assembly, move the oil inlet assembly upward out of the groove cavity of the second limit groove, and simultaneously move the fixed block from the groove cavity of the third limit groove out of the upper end of the groove cavity of the fifth limit groove. Then rotate the fixed block so that the annular slider rotates in the groove cavity of the annular slide groove, so that the fixed block is at the top of the ceramic outer ring, and the spring pushes the oil delivery pipe so that the fixed block is tightly attached to the top wall of the ceramic outer ring. By pouring lubricating oil into the oil inlet, the lubricating oil is input into the hole cavity of the oil inlet hole through the oil delivery pipe and the middle hole of the piston, and finally delivered to the oil storage area. By setting the oil inlet end of the oil inlet assembly on the side of the ceramic outer ring, it is convenient to continue to cooperate with the oil inlet assembly to pour lubricating oil into the oil storage area after the lubricating oil in the oil storage area is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the ceramic outer ring of the utility model;

[0022] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0023] Figure 4 This is a schematic diagram of the structure of the oil inlet assembly of the utility model;

[0024] Figure 5 For this utility model Figure 4 The enlarged view of point B;

[0025] Figure 6 It is a structural schematic diagram of the sealing component of the utility model.

[0026] In the figure: 10-ceramic inner ring, 20-ceramic outer ring, 21-oil inlet hole, 22-first limiting groove, 23-second limiting groove, 24-third limiting groove, 25-fourth limiting groove, 26-fifth limiting groove, 27-threaded hole, 30-rolling ball, 40-oil storage area;

[0027] 100- oil inlet assembly, 110- piston, 120- oil delivery pipe, 121- limit block, 130- spring, 140- oil inlet pipe, 141- oil inlet port, 142- annular slide, 150- fixed block, 151- annular slide block;

[0028] 200 - sealing assembly, 210 - sealing plate, 211 - connecting rod, 212 - bolt, 220 - sealing plug. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0031] See also Figure 1-Figure 6 , the utility model provides a ceramic bearing ring.

[0032] The ceramic inner ring 10 is installed on the inner side of the ceramic outer ring 20, and a ball 30 is installed between the ceramic inner ring 10 and the ceramic outer ring 20. An oil storage area 40 is formed between the ceramic inner ring 10 and the ceramic outer ring 20, and the lubricating oil is transported to the oil storage area 40 through the oil inlet hole 21. The ceramic outer ring 20 has an oil inlet hole 21 formed inside, and the oil inlet hole 21 is an L-shaped cavity. The upper end of the oil inlet hole 21 is connected to a first limiting groove 22, and the upper end of the first limiting groove 22 is connected to a second limiting groove 23 for limiting the oil inlet pipe 140.

[0033] A third limiting groove 24 is provided on the left and right sides of the second limiting groove 23, and the fixing block 150 slides up and down in the groove cavity of the third limiting groove 24. A fourth limiting groove 25 is provided at the upper end of the second limiting groove 23, and a fifth limiting groove 26 is provided on the left and right sides of the fourth limiting groove 25. A threaded hole 27 is provided at the lower end of the groove cavity of the fifth limiting groove 26. The sealing plate 210 is fixed in the groove cavity of the fourth limiting groove 25 by rotating the bolt 212 to the hole cavity of the threaded hole 27.

[0034] An oil inlet assembly 100 for delivering lubricating oil is installed inside the ceramic outer ring 20. The oil inlet assembly 100 includes a piston 110. An oil delivery pipe 120 is fixedly installed on the upper end of the piston 110. A stopper 121 for cooperating with a spring 130 to control the piston 110 to move downward is fixedly installed on the lower end of the oil delivery pipe 120, and the spring 130 is located at the upper end of the stopper 121. The middle part of the oil delivery pipe 120 is sleeved with a spring 130 for controlling the oil delivery pipe 120 to move downward, and the spring 130 and the stopper 121 are located in the groove cavity of the first stopper groove 22.

[0035] An oil inlet pipe 140 is fixedly installed at the upper end of the oil delivery pipe 120 for delivering lubricating oil to the inside of the oil delivery pipe 120. An oil inlet port 141 is provided in the middle of the oil inlet pipe 140, and an annular groove 142 is provided on the outer wall of the oil inlet pipe 140. The oil inlet assembly 100 includes a fixed block 150 for limiting the oil inlet pipe 140. An annular slider 151 is fixedly installed on the inner wall of the fixed block 150, and the annular slider 151 slides in the groove cavity of the annular groove 142.

[0036] When it is necessary to deliver lubricating oil to the oil storage area 40, the sealing assembly 200 is removed, the oil inlet assembly 100 is moved upward out of the groove cavity of the second limiting groove 23, and the fixed block 150 is simultaneously moved out of the groove cavity of the third limiting groove 24 and out of the upper end of the groove cavity of the fifth limiting groove 26. Then the fixed block 150 is rotated so that the annular slider 151 rotates in the groove cavity of the annular slide groove 142, so that the fixed block 150 is at the top of the ceramic outer ring 20, and under the push of the spring 130 on the oil delivery pipe 120, the fixed block 150 is tightly attached to the top wall of the ceramic outer ring 20. By pouring lubricating oil into the oil inlet 141, the lubricating oil is input into the cavity of the oil inlet hole 21 through the oil delivery pipe 120 and the middle hole of the piston 110, and finally delivered to the oil storage area 40.

[0037] After the lubricating oil is injected, the fixing block 150 is rotated in the opposite direction to align the fixing block 150 with the third limiting groove 24. Under the push of the spring 130, the fixing block 150 slides toward the groove cavity of the third limiting groove 24, and the oil inlet assembly 100 can be blocked by the sealing assembly 200. By setting the spring 130, when the ceramic bearing is in use, the spring 130 pushes the limiting block 121, and the piston 110 can be controlled to push the lubricating oil in the hole cavity at one end of the oil inlet hole 21, so that the lubricating oil can be continuously delivered to the oil storage area 40 for a period of time, reducing the number of times the lubricating oil is injected.

[0038] A sealing assembly 200 for closing the oil inlet end of the oil inlet assembly 100 is installed at the upper end of the oil inlet assembly 100. The sealing assembly 200 includes a sealing plate 210 for closing the fourth limiting groove 25. Connecting rods 211 are fixedly installed at the left and right ends of the sealing plate 210, and the connecting rod 211 is in the groove cavity of the fifth limiting groove 26. A bolt 212 for cooperating with the threaded hole 27 to limit the sealing assembly 200 is installed at one end of the connecting rod 211. A sealing plug 220 for sealing the middle hole of the oil pipeline 120 is installed at the bottom end of the sealing plate 210.

[0039] After the oil inlet pipe 140 moves to the groove cavity of the second limit groove 23, the sealing plate 210 is placed in the groove cavity of the fourth limit groove 25, so that the sealing plug 220 is inserted into the middle hole of the oil pipe 120 through the oil inlet port 141, and the middle hole of the oil pipe 120 is blocked to prevent the lubricating oil from flowing out of the middle hole of the oil pipe 120.

[0040] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A ceramic bearing ring, comprising a ceramic outer ring (20), characterized in that: A ceramic inner ring (10) is installed inside the ceramic outer ring (20), a rolling ball (30) is installed between the ceramic inner ring (10) and the ceramic outer ring (20), and an oil storage area (40) is formed between the ceramic inner ring (10) and the ceramic outer ring (20); An oil inlet assembly (100) for facilitating the delivery of lubricating oil is installed inside the ceramic outer ring (20), and a sealing assembly (200) for sealing the oil inlet end of the oil inlet assembly (100) is installed at the upper end of the oil inlet assembly (100); The oil inlet assembly (100) comprises a piston (110), an oil delivery pipe (120) is mounted on the upper end of the piston (110), a spring (130) for controlling the downward movement of the oil delivery pipe (120) is mounted in the middle of the oil delivery pipe (120), and an oil inlet pipe (140) for facilitating the delivery of lubricating oil to the interior of the oil delivery pipe (120) is mounted on the upper end of the oil delivery pipe (120).

2. A ceramic bearing ring according to claim 1, characterized in that: An oil inlet hole (21) is provided inside the ceramic outer ring (20), and the oil inlet hole (21) is an L-shaped cavity. The upper end of the oil inlet hole (21) is connected to a first limiting groove (22), and the upper end of the first limiting groove (22) is connected to a second limiting groove (23) for limiting the oil inlet pipe (140).

3. A ceramic bearing ring according to claim 2, characterized in that: A third limiting groove (24) is provided on the left and right sides of the second limiting groove (23); a fourth limiting groove (25) is provided at the upper end of the second limiting groove (23); a fifth limiting groove (26) is provided on the left and right sides of the fourth limiting groove (25); and a threaded hole (27) is provided at the lower end of the groove cavity of the fifth limiting groove (26).

4. A ceramic bearing ring according to claim 1, characterized in that: A limit block (121) is installed at the lower end of the oil delivery pipe (120) for cooperating with a spring (130) to control the piston (110) to move downward, and an oil inlet (141) is opened in the middle of the oil inlet pipe (140).

5. A ceramic bearing ring according to claim 1, characterized in that: The outer wall of the oil inlet pipe (140) is provided with an annular groove (142), and the oil inlet assembly (100) includes a fixed block (150) for limiting the position of the oil inlet pipe (140). An annular sliding block (151) is installed on the inner wall of the fixed block (150), and the annular sliding block (151) slides in the groove cavity of the annular groove (142).

6. A ceramic bearing ring according to claim 2, characterized in that: The sealing assembly (200) comprises a sealing plate (210) for closing the fourth limiting groove (25); connecting rods (211) are installed at the left and right ends of the sealing plate (210), and the connecting rods (211) are located in the groove cavity of the fifth limiting groove (26); a bolt (212) for cooperating with the threaded hole (27) to limit the sealing assembly (200) is installed at one end of the connecting rod (211); and a sealing plug (220) for sealing the middle hole of the oil pipeline (120) is installed at the bottom end of the sealing plate (210).

Images