Self-aligning roller bearing with lubricating function

Abstract

A self-aligning roller bearing with a lubricating function comprises a bearing outer ring and a bearing inner ring, and the bearing inner ring is arranged on the inner side of the bearing outer ring; the retainer is connected to the outer side of the bearing inner ring, the multiple roller bodies are rotationally connected to the retainer, and the surfaces of the roller bodies make contact with the inner side of the bearing outer ring; and the lubricating assembly is arranged at the position of the bearing inner ring, and the lubricating assembly is used for conducting lubricating treatment on the roller body. According to the self-aligning roller bearing, the lubricating oil can be smeared on the roller body through the design of the lubricating assembly, the friction coefficient between the roller body and the bearing outer ring and the friction coefficient between the roller body and the bearing inner ring during running of the self-aligning roller bearing are reduced, heat generated during running of the roller body is taken away, and the service life of the self-aligning roller bearing is prolonged; and waste caused by direct flow of lubricating oil can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and in particular to a self-aligning roller bearing with lubrication function. Background Technology

[0002] Self-aligning roller bearings are bearings capable of withstanding heavy loads and possessing an automatic self-aligning function. They feature two rows of rollers: an outer ring with a common spherical raceway and an inner ring with two raceways inclined at a certain angle relative to the bearing axis. This design allows the bearing to automatically align itself, compensating for shaft bending and misalignment of mating surfaces. The rollers in self-aligning roller bearings are drum-shaped, and the symmetrical drum-shaped rollers can freely adjust their position within the outer ring's spherical raceway. The permissible self-aligning angle of self-aligning roller bearings varies depending on the size series and load conditions, typically around 1-2.5 degrees under normal load. This self-aligning property allows the bearing to maintain normal operation even with slight shaft tilting or bending. In addition to radial loads, self-aligning roller bearings can withstand bidirectional axial loads, possessing high radial load capacity, making them particularly suitable for heavy radial loads or vibration loads. They also have good impact resistance, making them suitable for applications involving heavy loads or impact / vibration loads.

[0003] Self-aligning roller bearings are mainly used in various mechanical equipment in industries such as steel, mining, papermaking, shipbuilding, textile machinery, coal mills, and power. They are one of the most widely used types of bearings in the machinery industry. In the Chinese utility model patent "Publication No.: CN218325830U, Title: A Self-aligning Roller Bearing with Self-Lubricating Function," an oil inlet, an oil groove, and an oil outlet are provided. This allows lubricating oil to smoothly enter the oil groove through the inlet, and then the lubricating oil in the oil groove can smoothly enter another oil groove through a hose. The lubricating oil in the two oil grooves can be smoothly discharged through several oil outlets to lubricate the bearing body. The two oil reservoir rings can be fixed to the bearing body by the threaded engagement between the two threaded blocks and the threaded rod. However, directly discharging the lubricating oil into the roller track results in excessive lubricating oil, which is wasteful. Furthermore, the oil reservoir rings installed on both sides of the bearing by the threaded column can block the change of the inner ring angle, making it difficult to perform self-aligning operations and affecting the normal use of the self-aligning roller bearing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of excessive lubricating oil in the prior art, which easily leads to waste, and to provide a self-aligning roller bearing with lubrication function.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a self-aligning roller bearing with lubrication function, including an outer ring and an inner ring, wherein the inner ring is disposed inside the outer ring.

[0007] The bearing has a cage and roller bodies, wherein the cage is connected to the outer side of the inner ring of the bearing, and a plurality of roller bodies are rotatably connected to the cage, and the surface of the roller bodies is in contact with the inner side of the outer ring of the bearing.

[0008] A lubrication assembly is disposed at the inner ring of the bearing and is used to lubricate the roller body.

[0009] In this technical solution, the lubrication component is designed to apply lubricating oil to the roller body, reducing the coefficient of friction between the roller body and the outer and inner rings of the bearing during operation, and carrying away the heat generated by the roller body during operation, thus extending the service life of the self-aligning roller bearing. Furthermore, the application of lubricating oil prevents waste caused by direct flow of lubricating oil.

[0010] Preferably, the plurality of roller bodies are divided into left and right groups, and the plurality of roller bodies in each group are arranged in a circular array.

[0011] The two sets of multiple roller bodies are symmetrically distributed, and the two sets of multiple roller bodies are inclined at a certain angle relative to the bearing centerline.

[0012] In this technical solution, the cage can roll between the outer ring and the inner ring of the bearing.

[0013] Preferably, a spherical track is provided on the inner side of the outer ring of the bearing. The spherical track has an arc-shaped structure, and the roller body is in contact with the spherical track.

[0014] In this technical solution, the spherical track of the outer ring of the bearing allows the roller body to shift at a certain angle, thereby achieving the self-aligning function.

[0015] Preferably, the bearing inner ring has two symmetrically distributed shielding rings connected to its outer side, and one side of each shielding ring is rotatably connected to one end of the roller body.

[0016] In this technical solution, a shielding ring is used to provide a shielding ring for the roller body, preventing the roller body from coming off.

[0017] Preferably, the lubrication assembly includes an oil reservoir located inside the bearing inner ring, and multiple oiling holes are provided on the outer side of the bearing inner ring and at the cage.

[0018] In this technical solution, the oiling holes can be used to apply lubricant to the side surface of the roller body.

[0019] Preferably, the oiling hole has a conical structure, with the small end of the conical oiling hole facing the roller body and the large end facing the oil storage cavity.

[0020] In this technical solution, the design of the small end facing the roller body can avoid excessive lubricating oil outflow and waste.

[0021] Preferably, mounting holes are provided on the outer side of the inner ring of the bearing and at the shielding ring, and an oiled cotton strip is connected to the mounting hole.

[0022] One end of the oiled cotton strip extends into the inner cavity of the oil storage chamber, and the other end of the oiled cotton strip contacts one end of the roller body.

[0023] In this technical solution, lubricating oil can be applied to one end of the roller body using an oil-coated cotton strip at the outer end.

[0024] Preferably, a connecting channel is provided on the outer side of the inner ring of the bearing and at the center of the cage, and an oiled cotton strip is connected to the connecting channel.

[0025] The inner end oiling cotton strip has a cross-shaped structure. One end of the upper and lower ends of the inner end oiling cotton strip extends to the inner cavity of the oil storage chamber, and the other end contacts the inner side of the outer ring of the bearing.

[0026] The inner oiled cotton strip is in contact with the left and right ends of the roller body away from the shielding ring.

[0027] In this technical solution, the inner end of the oil-coated cotton strip can be used to apply lubricating oil to the other end of the roller body and the inner side of the bearing inner ring.

[0028] Preferably, a disassembly assembly is provided on the inner side of the bearing inner ring, the disassembly assembly including a fixed block and a movable block;

[0029] The inner side of the bearing inner ring is connected to a plurality of fixed blocks arranged in a ring array. A movable block is provided between each pair of adjacent fixed blocks. A plurality of elastic reset members are connected to one side of each movable block. The end of each elastic reset member away from the movable block is connected to the inner side of the bearing inner ring.

[0030] In this technical solution, the disassembly and assembly components facilitate the installation of shafts of different shapes.

[0031] Preferably, the fixed block has track grooves on both sides, and the movable block has anti-detachment positioning sliders on both sides. The anti-detachment positioning sliders are disposed in the track grooves and are slidably connected to the fixed block through the track grooves.

[0032] In this technical solution, the movement trajectory of the movable block can be limited by the design of the anti-detachment positioning slider.

[0033] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0034] The positive and progressive effects of this utility model are as follows:

[0035] This invention, through the design of the lubrication component, allows lubricating oil to be applied to the roller body, reducing the coefficient of friction between the roller body and the outer and inner rings of the bearing during operation, and carrying away the heat generated by the roller body during operation, thus extending the service life of the self-aligning roller bearing. Furthermore, the application of lubricating oil prevents waste caused by direct flow of lubricating oil.

[0036] Furthermore, when the self-aligning roller bearing is in operation, the lubrication component can automatically apply lubricating oil to the roller body, without the need for additional structures, and does not affect the normal use of the self-aligning roller bearing;

[0037] Furthermore, when using the lubrication assembly, lubricating oil can be applied to the side surface of the roller body, the two end faces of the roller body, and the inner side of the outer ring of the bearing. The large contact area of ​​the lubricating oil can better reduce the coefficient of friction, prevent wear, and better maintain the stable working temperature of the roller body. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of this utility model;

[0039] Figure 2 This is a side view of the structure of this utility model;

[0040] Figure 3 This is a side sectional view of the present invention.

[0041] Figure 4 This is a front cross-sectional view of the present invention.

[0042] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point A;

[0043] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point B.

[0044] Explanation of reference numerals in the attached figures

[0045] 1. Bearing outer ring; 2. Bearing inner ring; 3. Cage; 4. Roller body; 5. Lubrication assembly; 51. Oil reservoir; 52. Oiling hole; 53. Mounting channel; 54. Outer end oiling strip; 55. Connecting channel; 56. Inner end oiling strip; 6. Shielding ring; 7. Disassembly assembly; 71. Fixed block; 72. Movable block; 73. Elastic reset component; 74. Anti-detachment positioning slider. Detailed Implementation

[0046] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0047] Combined with appendix Figures 1-6 The self-aligning roller bearing with lubrication function includes an outer ring 1 and an inner ring 2, wherein the inner ring 2 is disposed inside the outer ring 1.

[0048] The cage 3 and the roller body 4 are connected to the outer side of the inner ring 2 of the bearing, and a plurality of roller bodies 4 are rotatably connected to the cage 3. The surface of the roller body 4 is in contact with the inner side of the outer ring 1 of the bearing.

[0049] Lubrication component 5 is disposed at the inner ring 2 of the bearing and is used to lubricate the roller body 4.

[0050] In this technical solution, the lubrication component 5 is designed to apply lubricating oil to the roller body 4, which reduces the coefficient of friction between the roller body 4 and the outer ring 1 and inner ring 2 of the bearing during operation, and removes the heat generated by the operation of the roller body 4, thus extending the service life of the self-aligning roller bearing. Furthermore, the application of lubricating oil prevents waste caused by direct flow of lubricating oil.

[0051] The multiple roller bodies 4 are divided into two groups, left and right, and the multiple roller bodies 4 in each group are arranged in a ring array.

[0052] The two sets of multiple roller bodies 4 are symmetrically distributed, and the two sets of multiple roller bodies 4 are inclined at a certain angle relative to the bearing centerline.

[0053] In this technical solution, the cage 3 can roll between the outer ring 1 and the inner ring 2 of the bearing.

[0054] A spherical track is provided on the inner side of the outer ring 1 of the bearing. The spherical track has an arc structure, and the roller body 4 is in contact with the spherical track.

[0055] In this technical solution, the spherical track of the outer ring 1 of the bearing allows the roller body 4 to shift at a certain angle, thereby achieving the self-aligning function.

[0056] Two symmetrically distributed shielding rings 6 are connected to the outer side of the inner ring 2 of the bearing, and one side of the shielding ring 6 is rotatably connected to one end of the roller body 4.

[0057] In this technical solution, the shielding ring 6 can provide a shielding ring for the roller body 4, preventing the roller body 4 from coming off.

[0058] The lubrication assembly 5 includes an oil reservoir 51, which is located inside the bearing inner ring 2. Multiple oiling holes 52 are provided on the outer side of the bearing inner ring 2 and at the cage 3.

[0059] A lubrication end assembly is installed on the side of the inner ring 2 of the bearing, and lubricating oil is added to the oil reservoir 51 using the lubrication end assembly.

[0060] In this technical solution, the oiling hole 52 can be used to apply lubricant to the surface of the roller body 4.

[0061] The oiling hole 52 has a conical structure, with the small end of the conical oiling hole 52 facing the roller body 4 and the large end facing the oil storage cavity 51.

[0062] In this technical solution, the design of the small end facing the roller body 4 can avoid excessive lubricating oil outflow and waste.

[0063] Mounting holes 53 are provided on the outer side of the inner ring 2 of the bearing and at the shielding ring 6. An oiled cotton strip 54 is connected to the mounting hole 53.

[0064] One end of the oiled cotton strip 54 extends into the inner cavity of the oil storage chamber 51, and the other end of the oiled cotton strip 54 contacts one end of the roller body 4.

[0065] In this technical solution, the outer end of the oil-coated cotton strip 54 can be used to apply lubricating oil to one end of the roller body 4.

[0066] A connecting channel 55 is provided on the outer side of the inner ring 2 of the bearing and at the center of the cage 3. An oiled cotton strip 56 is connected to the inner end of the connecting channel 55.

[0067] The inner end oiling cotton strip 56 has a cross-shaped structure. One end of the upper and lower ends of the inner end oiling cotton strip 56 extends to the inner cavity of the oil storage cavity 51, and the other end contacts the inner side of the outer ring 1 of the bearing.

[0068] The inner end of the oiled cotton strip 56 is in contact with the left and right ends of the roller body 4 away from the shielding ring 6.

[0069] In this technical solution, the inner end of the oil-coated cotton strip 56 can be used to apply lubricating oil to the other end of the roller body 4 and the inner side of the bearing inner ring 2.

[0070] When in use, the inner ring 2 of the bearing rotates relative to the outer ring 1 of the bearing, thereby causing the cage 3 to rotate relative to the outer ring 1 of the bearing, which in turn causes the roller body 4 to rotate.

[0071] When the roller body 4 rotates, lubricating oil can be applied to the side surface of the roller body 4 through the oiling hole 52, and lubricating oil can be applied to both ends of the roller body 4 and the inner side of the bearing outer ring 1 through the outer oiling cotton strip 54 and the inner oiling cotton strip 56, so that there is lubricating oil on the contact surface of the roller body 4, which can reduce the friction coefficient when the roller body 4 rotates and extend its service life.

[0072] The inner side of the bearing inner ring 2 is provided with a disassembly assembly 7, which includes a fixed block 71 and a movable block 72.

[0073] The inner ring 2 of the bearing is connected to a plurality of fixed blocks 71 arranged in a ring array. A movable block 72 is provided between each two adjacent fixed blocks 71. A plurality of elastic reset members 73 are connected to one side of the movable block 72. The end of the elastic reset member 73 away from the movable block 72 is connected to the inner side of the inner ring 2 of the bearing.

[0074] In this technical solution, the disassembly and assembly component 7 facilitates the installation of shafts of different shapes.

[0075] The fixed block 71 has track grooves on both sides, and the movable block 72 has anti-detachment positioning sliders 74 connected to both sides. The anti-detachment positioning sliders 74 are set in the track grooves and are slidably connected to the fixed block 71 through the track grooves.

[0076] In this technical solution, the movement trajectory of the movable block 72 can be limited by the design of the anti-detachment positioning slider 74.

[0077] When installing a shaft column inside the inner ring 2 of the bearing, if the shaft column is cylindrical, it can directly contact multiple fixing blocks 71 and use the fixing blocks 71 to provide support force.

[0078] If the shaft column surface is provided with anti-detachment protrusions, the anti-detachment protrusions can be provided at the movable block 72. Under the use of the elastic reset member 73, the movable block 72 moves towards the inner side of the bearing inner ring 2. Other positions on the shaft column surface contact the fixed block 71, so that when the shaft column rotates, the anti-detachment protrusions can drive the fixed block 71 to rotate, thereby increasing stability.

[0079] The design of the disassembly and assembly component 7 allows the bearing inner ring 2 to be adapted to a wider variety of shaft types, increasing the flexibility of using self-aligning roller bearings.

[0080] The elastic reset component 73 is a spring or other component with elastic reset function.

[0081] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A self-aligning roller bearing with lubrication function, characterized in that: It includes an outer ring (1) and an inner ring (2), wherein the inner ring (2) is disposed inside the outer ring (1); A cage (3) and roller bodies (4) are provided. The cage (3) is connected to the outside of the inner ring (2) of the bearing, and multiple roller bodies (4) are rotatably connected to the cage (3). The surface of the roller bodies (4) is in contact with the inside of the outer ring (1) of the bearing. Lubrication assembly (5) is disposed at the inner ring (2) of the bearing and is used to lubricate the roller body (4).

2. The self-aligning roller bearing with lubrication function as described in claim 1, characterized in that: The multiple roller bodies (4) are divided into two groups, left and right, and the multiple roller bodies (4) in each group are arranged in a ring array; The two sets of multiple roller bodies (4) are symmetrically distributed, and the two sets of multiple roller bodies (4) are inclined at a certain angle relative to the bearing centerline.

3. The self-aligning roller bearing with lubrication function as described in claim 1, characterized in that: The bearing outer ring (1) is provided with a spherical track on the inner side. The spherical track has an arc-shaped structure, and the roller body (4) is in contact with the spherical track.

4. The self-aligning roller bearing with lubrication function as described in claim 1, characterized in that: Two symmetrically distributed shielding rings (6) are connected to the outer side of the inner ring (2) of the bearing. One side of the shielding ring (6) is rotatably connected to one end of the roller body (4).

5. The self-aligning roller bearing with lubrication function as described in claim 4, characterized in that: The lubrication assembly (5) includes an oil reservoir (51) located inside the bearing inner ring (2). Multiple oiling holes (52) are provided on the outer side of the bearing inner ring (2) and at the cage (3).

6. The self-aligning roller bearing with lubrication function as described in claim 5, characterized in that: The oiling hole (52) has a conical structure, with the small end of the conical oiling hole (52) facing the roller body (4) and the large end facing the oil storage cavity (51).

7. The self-aligning roller bearing with lubrication function as described in claim 5, characterized in that: Mounting holes (53) are provided on the outer side of the inner ring (2) of the bearing and at the shielding ring (6), and an oiled cotton strip (54) is connected to the mounting hole (53). One end of the oiled cotton strip (54) extends into the inner cavity of the oil storage cavity (51), and the other end of the oiled cotton strip (54) contacts one end of the roller body (4).

8. The self-aligning roller bearing with lubrication function as described in claim 5, characterized in that: A connecting channel (55) is provided on the outer side of the inner ring (2) of the bearing and at the center of the cage (3). An oiled cotton strip (56) is connected inside the connecting channel (55). The inner end oiled cotton strip (56) has a cross-shaped structure. One end of the upper and lower ends of the inner end oiled cotton strip (56) extends to the inner cavity of the oil storage cavity (51), and the other end contacts the inner side of the outer ring (1) of the bearing. The inner end oiled cotton strip (56) is in contact with the left and right ends of the roller body (4) away from the shielding ring (6) at its left and right ends respectively.

9. The self-aligning roller bearing with lubrication function as described in claim 1, characterized in that: The inner side of the bearing inner ring (2) is provided with a disassembly assembly (7), which includes a fixed block (71) and a movable block (72). The inner ring (2) of the bearing is connected to a plurality of fixed blocks (71) arranged in a ring array. A movable block (72) is provided between each two adjacent fixed blocks (71). A plurality of elastic reset members (73) are connected to one side of the movable block (72). The end of the elastic reset member (73) away from the movable block (72) is connected to the inner side of the bearing inner ring (2).

10. The self-aligning roller bearing with lubrication function as described in claim 9, characterized in that: The fixed block (71) has track grooves on both sides, and the movable block (72) has anti-detachment positioning sliders (74) on both sides. The anti-detachment positioning sliders (74) are set in the track grooves and are slidably connected to the fixed block (71) through the track grooves.

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