A lubrication assembly and its bearing

Abstract

This invention discloses a lubrication assembly and its bearing, relating to the field of bearing technology. The invention includes an inner ring and an outer ring coaxially disposed around the outer circumference of the inner ring; a cage is installed between the inner and outer rings; multiple balls are evenly distributed on the cage; a first retaining ring and a second retaining ring are respectively disposed on opposite sides of the cage; both the first and second retaining rings are coaxially mounted between the inner and outer rings; multiple oil inlets are evenly distributed on one surface of the first retaining ring; and multiple oil outlets are evenly distributed on one surface of the second retaining ring. This invention adds lubricating oil between the inner and outer rings through the oil inlets and discharges the lubricating oil through the oil outlets, thereby achieving dynamic replenishment of the lubricating oil within the bearing, effectively ensuring the bearing's performance and possessing high market application value.

Description

Technical Field

[0001] This invention belongs to the field of bearing technology, and in particular relates to a lubrication assembly and its bearing. Background Technology

[0002] Bearings are crucial components in mechanical equipment, functioning to support rotating mechanical bodies such as shafts and reduce the coefficient of friction during their movement, ensuring rotational accuracy. During bearing operation, not only rolling friction but also sliding friction occurs between the various components, leading to wear. Therefore, adding lubricating oil to bearings not only reduces internal friction and wear but also prevents rust and corrosion, extending their service life. Current technology typically involves periodically adding lubricating oil to bearings. While simple, this method can lead to rapid oil consumption if the equipment is used frequently. Failure to replenish lubricating oil in a timely manner can cause bearing damage. Therefore, there is an urgent need to research a lubrication assembly and its bearing to address these issues. Summary of the Invention

[0003] The present invention provides a lubrication assembly and its bearing, the purpose of which is to solve the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0005] This invention relates to a bearing, comprising an inner ring and an outer ring coaxially disposed around the outer periphery of the inner ring; a cage is installed between the inner ring and the outer ring; a plurality of balls are evenly distributed on the cage; a first retaining ring and a second retaining ring are respectively disposed on opposite sides of the cage; the first retaining ring and the second retaining ring are both coaxially disposed between the inner ring and the outer ring; a plurality of oil inlet holes are evenly distributed on one surface of the first retaining ring; a plurality of oil outlet holes are evenly distributed on one surface of the second retaining ring.

[0006] A lubrication assembly includes a bearing housing, a rotating shaft inserted into the inner bore of the bearing housing, and a bearing as described above. The bearing is disposed within the inner bore of the bearing housing. An inner ring is interference-fitted onto the outer circumference of the rotating shaft. An outer ring is interference-fitted into the inner bore of the bearing housing. End caps are fixed at opposite ends of the inner bore of the bearing housing. The end caps are fitted onto the outer circumference of the rotating shaft. The bearing housing has a pair of symmetrically arranged oil injection holes and at least one oil return hole radially along the rotating shaft. Both oil injection holes are located between a first retaining ring and one end cap. The oil return hole is located between a second retaining ring and the other end cap. Oil supply connectors are installed within the outer ports of the two oil injection holes. The two oil supply connectors are connected by an oil supply pipe. An oil drain connector is installed within the outer port of the oil return hole. An oil drain pipe is connected to the oil drain connector.

[0007] As a preferred embodiment of the present invention, a stirring member for agitating lubricating oil is installed between the first retaining ring and an end cap; the stirring member is disposed on the outer periphery of the rotating shaft; the stirring member includes a bearing sleeve that is interference-fitted to the outer periphery of the rotating shaft; one end of the bearing sleeve has a convex ring coaxially disposed; one end face of the convex ring abuts against one end face of the inner ring; a plurality of stirring blades corresponding to the oil injection holes are radially fixed on the circumferential sidewall of the convex ring.

[0008] As a preferred embodiment of the present invention, the agitator is connected to an oil-pushing component for accelerating the flow of lubricating oil from between the first retaining ring and one end cap into the space between the first retaining ring and the second retaining ring; the oil-pushing component is installed between the convex ring and one end cap; the oil-pushing component includes a support plate coaxially fixed to the other end of the bearing sleeve and an oil-pushing disc coaxially sleeved on the outer periphery of the bearing sleeve; the support plate is sleeved on the outer periphery of the rotating shaft; a plurality of arc-shaped protrusions are evenly distributed and fixed along the annular direction on one surface of the support plate near the convex ring; the oil-pushing disc slides in fit with the bearing sleeve; the outer circumferential wall of the oil-pushing disc slides against the inner wall of the bearing seat's inner hole. The oil-pushing plate has multiple movable columns vertically fixed on one surface near the support plate, corresponding to the arc-shaped protrusions. One end of each movable column abuts against the surface of the arc-shaped protrusion near the oil-pushing plate. A guide column is arranged parallel between two adjacent movable columns. The guide column slides through the oil-pushing plate. One end of the guide column is vertically fixed to one surface of an end cap. A tension spring is sleeved on the guide column. One end of the tension spring is fixed to the end cap. The other end of the tension spring is fixed to the oil-pushing plate. A limit block is fixed to the other end of the guide column. The limit block is located around the agitator blade.

[0009] The present invention has the following beneficial effects:

[0010] 1. This invention replenishes lubricating oil into the oil inlet in real time, causing the lubricating oil to enter the space formed between the inner ring, outer ring, first retaining ring, and second retaining ring, which can effectively lubricate the balls. Then the lubricating oil is discharged from the oil outlet, thereby realizing the circulation of lubricating oil into the space formed between the inner ring, outer ring, first retaining ring, and second retaining ring, which effectively improves the bearing's performance and avoids problems such as lubricating oil shortage in the bearing.

[0011] 2. Lubricating oil is supplied to the oil supply pipe through the oil supply equipment, causing the lubricating oil to enter the gap between the first retaining ring and the end cover through the oil supply joint and the oil injection hole. Then, the lubricating oil enters the space formed between the inner ring, outer ring, first retaining ring, and second retaining ring through the oil inlet hole, thus ensuring the lubrication effect of the bearing. Since the size of the space formed between the inner ring, outer ring, first retaining ring, and second retaining ring is a fixed value, the lubricating oil entering the bearing through the oil injection hole will also discharge other lubricating oil in the bearing from the oil outlet hole. Then, it will be discharged to the oil supply equipment through the oil return hole, oil drain joint, and oil drain pipe, thereby realizing the dynamic flow of lubricating oil in the bearing, effectively improving the lubrication effect of the lubricating oil on the bearing, and has high market application value.

[0012] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a bearing according to the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of a lubrication component according to the present invention.

[0016] Figure 3 This is a schematic diagram of the bearing housing of the present invention.

[0017] Figure 4 for Figure 3 A structural side view.

[0018] Figure 5 This is a schematic diagram of the connection between the flipping component and the oil-pushing component of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the flipping component of the present invention.

[0020] Figure 7 for Figure 6 The main view of the structure.

[0021] Figure 8 This is a schematic diagram of the structure of the oil-pushing component of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Inner ring, 2-Outer ring, 3-Cage, 4-Ball, 5-First retaining ring, 6-Second retaining ring, 7-Bearing housing, 8-Shaft, 9-End cover, 10-Oil supply connector, 11-Oil supply pipe, 12-Oil drain connector, 13-Oil drain pipe, 14-Tilting component, 15-Oil pusher component, 501-Oil inlet hole, 601-Oil outlet hole, 701-Oil injection hole, 702-Oil return hole, 1401-Bearing sleeve, 1402-Convex ring, 1403-Agitator blade, 1501-Support plate, 1502-Oil pusher plate, 1503-Arc-shaped protrusion, 1504-Moving column, 1505-Guide column, 1506-Tension spring, 1507-Limit block. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific Implementation Example 1:

[0026] Please see Figure 1 As shown, a bearing includes an inner ring 1 and an outer ring 2 coaxially disposed around the outer periphery of the inner ring 1; a conventional cage 3 is installed between the inner ring 1 and the outer ring 2; a plurality of conventional balls 4 are evenly distributed on the cage 3; a first retaining ring 5 and a second retaining ring 6 are respectively disposed on opposite sides of the cage 3; the first retaining ring 5 and the second retaining ring 6 are both coaxially disposed between the inner ring 1 and the outer ring 2; a pair of first annular grooves for receiving the inner edges of the first retaining ring 5 and the second retaining ring 6 are arranged side by side on the outer circumference of the inner ring 1; the first annular grooves are slidably engaged with the first retaining ring 5 and the second retaining ring 6 respectively; a pair of second annular grooves for receiving the outer edges of the first retaining ring 5 and the second retaining ring 6 are arranged side by side on the inner circumference of the outer ring 2; the second annular grooves are slidably engaged with the first retaining ring 5 and the second retaining ring 6 respectively; a plurality of oil inlet holes 501 are evenly distributed on one surface of the first retaining ring 5; a plurality of oil outlet holes 601 are evenly distributed on one surface of the second retaining ring 6. During use, lubricating oil is continuously added to the oil inlet 501, causing the lubricating oil to enter the space formed between the inner ring 1, outer ring 2, first retaining ring 5, and second retaining ring 6, which can effectively lubricate the ball 4. Then the lubricating oil is discharged from the oil outlet 601, thereby realizing the circulation of lubricating oil into the space formed between the inner ring 1, outer ring 2, first retaining ring 5, and second retaining ring 6, which effectively improves the bearing's performance and avoids problems such as lubricating oil shortage in the bearing.

[0027] Please see Figures 2-4As shown, a lubrication assembly includes a conventional bearing housing 7, a rotating shaft 8 inserted into the inner hole of the bearing housing 7, and a bearing as described above. The bearing is disposed in the inner hole of the bearing housing 7. An inner ring 1 is interference-fitted onto the outer circumference of the rotating shaft 8. An outer ring 2 is interference-fitted into the inner hole of the bearing housing 7. End caps 9 are screwed to both opposite ends of the inner hole of the bearing housing 7. The end caps 9 are fitted onto the outer circumference of the rotating shaft 8. The end caps 9 and the rotating shaft 8 are clearance-fitted, and a conventional sealing ring is provided at the connection between the end caps 9 and the rotating shaft 8. A pair of symmetrically arranged oil injection holes 701 and an oil return hole 702 are provided on the bearing housing 7 along the radial direction of the rotating shaft 8. Both oil injection holes 701 are located at... Between the first retaining ring 5 and one end cap 9; the oil return hole 702 is located between the second retaining ring 6 and the other end cap 9; conventional oil supply connectors 10 are fixedly inserted into the outer ports of the two oil filling holes 701; the two oil supply connectors 10 are connected to each other through an oil supply pipe 11; conventional oil drain connectors 12 are fixedly inserted into the outer port of the oil return hole 702; an oil drain pipe 13 is connected to the oil drain connector 12; the oil supply pipe 11 and the oil drain pipe 13 are connected through a conventional oil supply device; the oil supply device includes an oil pump whose output end is connected to one end of the oil supply pipe 11, an oil tank whose input end is connected to one end of the oil drain pipe 13, and a delivery pipe for connecting the input end of the oil pump and the output end of the oil tank. In use, lubricating oil is supplied to the oil supply pipe 11 through the oil supply device, causing the lubricating oil to enter the gap between the first retaining ring 5 and the end cap 9 through the oil supply connector 10 and the oil injection hole 701. Then, the lubricating oil enters the space formed between the inner ring 1, the outer ring 2, the first retaining ring 5 and the second retaining ring 6 through the oil inlet hole 501, thus ensuring the lubrication effect of the bearing. Since the size of the space formed between the inner ring 1, the outer ring 2, the first retaining ring 5 and the second retaining ring 6 is a fixed value, the lubricating oil entering the bearing through the oil injection hole 701 will also discharge other lubricating oil in the bearing from the oil outlet hole 601, and then discharge it to the oil supply device through the oil return hole 702, the oil drain connector 12 and the oil drain pipe 13, thereby realizing the dynamic flow of lubricating oil in the bearing and effectively improving the lubrication effect of the lubricating oil on the bearing. Specific Implementation Example 2:

[0029] Based on specific embodiment one, as follows Figure 2 and Figures 4-7As shown, a stirring member 14 for agitating the lubricating oil is installed between the first retaining ring 5 and the end cap 9; the stirring member 14 is disposed on the outer periphery of the rotating shaft 8; the stirring member 14 includes a bearing sleeve 1401 that is interference-fitted on the outer periphery of the rotating shaft 8; one end of the bearing sleeve 1401 has a coaxially disposed convex ring 1402; one end face of the convex ring 1402 abuts against one end face of the inner ring 1; a plurality of stirring blades 1403 corresponding to the oil injection hole 701 are radially welded to the circumferential sidewall of the convex ring 1402. In use, the rotation of the shaft 8 drives the bearing sleeve 1401 to rotate, causing the agitator blades 1403 on the convex ring 1402 to fully agitate the lubricating oil between the first retaining ring 5 and the end cover 9. This not only prevents the lubricating oil from accumulating in the gap between the first retaining ring 5 and the end cover 9, but also ensures that the lubricating oil is evenly distributed in the gap between the first retaining ring 5 and the end cover 9. This ensures that the lubricating oil enters evenly from multiple oil inlets 501 into the space formed between the inner ring 1, outer ring 2, first retaining ring 5 and second retaining ring 6, thereby further improving the lubrication effect of the lubricating oil on the bearing. Specific Implementation Example 3:

[0031] Based on the second specific embodiment, as follows Figure 2 and Figures 4-8As shown, the agitator 14 is connected to an oil-pushing component 15 for accelerating the flow of lubricating oil from between the first retaining ring 5 and the end cap 9 into the space between the first retaining ring 5 and the second retaining ring 6; the oil-pushing component 15 is installed between the convex ring 1402 and the end cap 9; the oil-pushing component 15 includes a support plate 1501 coaxially welded to the other end of the bearing sleeve 1401 and an oil-pushing plate 1502 coaxially sleeved on the outer periphery of the bearing sleeve 1401; the support plate 1501 is sleeved on the outer periphery of the rotating shaft 8, and the support plate 1501 and the rotating shaft 8 are interference-fitted. The support plate 1501 has multiple arc-shaped protrusions 1503 evenly distributed and fixed along the annular direction on one surface near the convex ring 1402; the surface of the arc-shaped protrusions 1503 near the oil-pushing plate 1502 has an isosceles trapezoidal structure, and each edge of the arc-shaped protrusions 1503 is chamfered; the oil-pushing plate 1502 slides with the bearing sleeve 1401, and a conventional sealing ring in the art is provided at the connection between the oil-pushing plate 1502 and the bearing sleeve 1401; the outer circumferential wall of the oil-pushing plate 1502 and the inner hole of the bearing seat 7 are connected. The wall slides and fits together, and a conventional sealing ring in the art is provided at the connection between the oil pusher plate 1502 and the bearing seat 7; a plurality of movable columns 1504 corresponding to the arc-shaped protrusions 1503 are vertically fixed on one surface of the oil pusher plate 1502 near the support plate 1501; one end of the movable column 1504 abuts against the surface of the arc-shaped protrusions 1503 near the oil pusher plate 1502; a guide column 1505 is arranged parallel between two adjacent movable columns 1504; the guide column 1505 slides through the oil pusher plate 1502. Furthermore, a conventional sealing ring of the art is provided at the connection between the guide post 1505 and the oil pushing plate 1502; one end of the guide post 1505 is vertically welded to one surface of the end cover 9; a tension spring 1506 is sleeved on the guide post 1505; one end of the tension spring 1506 is fixed to the end cover 9; the other end of the tension spring 1506 is fixed to the oil pushing plate 1502; a limit block 1507 is welded to the other end of the guide post 1505; the limit block 1507 is provided on the periphery of the stirring blade 1403.In use, the support plate 1501 is rotated by the bearing sleeve 1401. Since one end of the movable column 1504 abuts against the surface of the arc-shaped protrusion 1503 near the oil-pushing plate 1502, the movable column 1504 causes the oil-pushing plate 1502 to move axially along the guide column 1505, thereby realizing the dynamic adjustability of the space between the oil-pushing plate 1502 and the first retaining ring 5. This can accelerate the entry of lubricating oil into the bearing. When the oil-pushing plate 1502 approaches the first retaining ring 5, the tension spring 1506 is in a stretched state. Then, when one end of the movable column 1504 disengages from the arc-shaped protrusion 1503 and approaches the end face of the support plate 1501 near the oil-pushing plate 1502... When they are in contact, the space between the oil pusher plate 1502 and the first retaining ring 5 is at its maximum, thus ensuring the movement effect of the oil pusher plate 1502. It should also be noted that the reciprocating motion of the oil pusher plate 1502 in the bearing housing 7 does not affect the continuous delivery of lubricating oil from the oil injection hole 701 to the space between the oil pusher plate 1502 and the first retaining ring 5. In other words, the oil injection hole 701 is always located between the oil pusher plate 1502 and the first retaining ring 5, thus ensuring the continuous delivery effect of lubricating oil. Furthermore, by designing the reciprocating motion of the oil pusher plate 1502 in the bearing housing 7, the lubricating oil can also be discharged from the oil outlet hole 601 more quickly, thus ensuring the circulation effect of the lubricating oil.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lubrication assembly, comprising a bearing housing (7) and a rotating shaft (8) inserted into the inner hole of the bearing housing (7); characterized in that, It also includes a bearing; the bearing is disposed in the inner hole of the bearing housing (7); The bearing includes an inner ring (1) and an outer ring (2) coaxially disposed on the outer periphery of the inner ring (1); a cage (3) is installed between the inner ring (1) and the outer ring (2); The retainer (3) is evenly equipped with a plurality of balls (4); a first retaining ring (5) and a second retaining ring (6) are respectively provided on opposite sides of the retainer (3); the first retaining ring (5) and the second retaining ring (6) are coaxially mounted between the inner ring (1) and the outer ring (2); a plurality of oil inlet holes (501) are evenly distributed on one surface of the first retaining ring (5); a plurality of oil outlet holes (601) are evenly distributed on one surface of the second retaining ring (6). The inner ring (1) is interference-fitted onto the outer circumference of the rotating shaft (8); the outer ring (2) is interference-fitted into the inner hole of the bearing seat (7); end caps (9) are fixed at both ends of the inner hole of the bearing seat (7); the end caps (9) are sleeved on the outer circumference of the rotating shaft (8); a pair of symmetrically arranged oil injection holes (701) and at least one oil return hole (702) are provided on the bearing seat (7) along the radial direction of the rotating shaft (8); both oil injection holes (701) are located between the first retaining ring (5) and one end cap (9); the oil return hole (702) is located between the second retaining ring (6) and the other end cap (9); The two oil injection holes (701) are equipped with oil supply connectors (10) at their outer ports; the two oil supply connectors (10) are connected to each other by an oil supply pipe (11); the oil return hole (702) is equipped with an oil drain connector (12) at its outer port; an oil drain pipe (13) is connected to the oil drain connector (12). An agitator (14) for stirring the lubricating oil is installed between the first retaining ring (5) and an end cap (9); the agitator (14) is located on the outer periphery of the rotating shaft (8); The agitator (14) includes a bearing sleeve (1401) that is interference-fitted onto the outer periphery of the rotating shaft (8); one end of the bearing sleeve (1401) has a coaxially arranged convex ring (1402); one end face of the convex ring (1402) abuts against one end face of the inner ring (1); a plurality of agitator blades (1403) corresponding to the oil injection hole (701) are radially fixed on the circumferential sidewall of the convex ring (1402). The flipping component (14) is connected to an oil-pushing component (15) for accelerating the flow of lubricating oil from between the first retaining ring (5) and the end cap (9) into the space between the first retaining ring (5) and the second retaining ring (6); the oil-pushing component (15) is installed between the convex ring (1402) and the end cap (9); The oil-pushing component (15) includes a support plate (1501) coaxially fixed to the other end of the bearing sleeve (1401) and an oil-pushing plate (1502) coaxially sleeved on the outer periphery of the bearing sleeve (1401); the support plate (1501) is sleeved on the outer periphery of the rotating shaft (8); a plurality of arc-shaped protrusions (1503) are evenly distributed and fixed on one surface of the support plate (1501) near the convex ring (1402) along the annular direction; the oil-pushing plate (1502) slides with the bearing sleeve (1401); the outer circumferential wall of the oil-pushing plate (1502) slides against the inner wall of the inner hole of the bearing seat (7); a plurality of arc-shaped protrusions (1503) are vertically fixed on one surface of the oil-pushing plate (1502) near the support plate (1501). A movable column (1504) corresponds to the protrusion (1503); one end of the movable column (1504) abuts against the surface of the arc-shaped protrusion (1503) near the oil-pushing plate (1502); a guide column (1505) is arranged parallel between two adjacent movable columns (1504); the guide column (1505) slides through the oil-pushing plate (1502); one end of the guide column (1505) is vertically fixed to one surface of an end cap (9); a tension spring (1506) is sleeved on the guide column (1505); one end of the tension spring (1506) is fixed to an end cap (9); the other end of the tension spring (1506) is fixed to the oil-pushing plate (1502).

2. A lubrication assembly according to claim 1, characterized in that, The other end of the guide post (1505) is fixed with a limiting block (1507); the limiting block (1507) is disposed on the periphery of the stirring blade (1403).

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