Bearing structure convenient for oil injection

Abstract

The utility model discloses a bearing structure convenient for oil injection, and belongs to the technical field of bearings. Comprising a bearing body and an oil injection mechanism, the bearing body comprises an outer ring and an inner ring, the inner ring is located in the outer ring and is coaxial with the outer ring, a retainer is arranged between the outer ring and the inner ring, a plurality of open holes are distributed in the circumferential direction of the side face of the retainer at equal intervals, balls are arranged in the open holes in a rolling mode, and the balls make contact with the outer ring and the inner ring; the oil injection mechanism comprises an oil cavity formed in the outer ring, a plurality of oil outlet holes are distributed in the circumferential direction of the inner wall of the outer ring at equal intervals, the oil outlet holes are connected with the oil cavity, a plurality of oil inlet holes are distributed in the circumferential direction of the outer wall of the outer ring at equal intervals, conical holes are communicated between the oil inlet holes and the oil cavity, and one-way pieces for preventing lubricating oil from flowing back are arranged in the conical holes. According to the bearing structure convenient to inject oil, the purpose that a user injects lubricating oil into the bearing body conveniently can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is a bearing structure of convenient oiling. BACKGROUND

[0002] As a widely used component in mechanical equipment, the lubrication effect of bearing is crucial to the normal operation and service life of the equipment. Currently, there are many inconveniences in the oiling process of traditional bearings. The oiling hole position of many bearings is not reasonably designed, and it is difficult for the operator to accurately inject lubricating oil into the key parts inside the bearing, resulting in insufficient oiling and affecting the lubrication effect of the bearing. Some bearings need to be disassembled a large number of peripheral components during oiling, which is tedious to operate and consumes time and labor cost, and frequent disassembly can easily damage the bearing and related components. SUMMARY

[0003] The utility model aims at providing a bearing structure convenient for oiling to solve the problems of inconvenient oiling, insufficient oiling and easy damage to the equipment during oiling of traditional bearings in the background technology.

[0004] In view of the above problems, the technical scheme provided by the utility model is:

[0005] A bearing structure convenient for oiling, comprising a bearing body and an oiling mechanism; the bearing body comprises an outer ring and an inner ring, and the inner ring is located inside the outer ring and coaxial with the outer ring, a retainer is arranged between the outer ring and the inner ring, a plurality of openings are distributed equidistantly in the circumferential direction of the side surface of the retainer, a plurality of balls are rolled in the openings, and the balls are in contact with the outer ring and the inner ring; the oiling mechanism comprises an oil cavity formed in the inner part of the outer ring, a plurality of oil outlet holes are distributed equidistantly in the circumferential direction of the inner wall of the outer ring, the oil outlet holes are connected with the oil cavity, a plurality of oil inlet holes are distributed equidistantly in the circumferential direction of the outer wall of the outer ring, a tapered hole is connected between the oil inlet holes and the oil cavity, a one-way piece for preventing backflow of lubricating oil is arranged inside the tapered hole, and the oiling mechanism composed of the oil cavity, the oil inlet holes, the oil outlet holes and the one-way piece arranged on the outer ring enables the operator to directly inject lubricating oil from the oil inlet holes of the outer ring without disassembling the peripheral components. The lubricating oil enters the oil cavity through the tapered hole and the one-way piece, and then flows to the contact parts of the balls and the inner and outer rings inside the bearing through the oil outlet holes, realizing precise oiling and effectively solving the problems of inconvenient oiling and insufficient oiling of traditional bearings.

[0006] Further, the radius of the conical hole near one end of the oil inlet hole is smaller than the radius of the conical hole near the other end of the oil cavity, the one-way piece comprises a connecting plate installed in the conical hole, a clamping ball is arranged between the connecting plate and the oil inlet hole, the clamping ball seals the oil inlet hole, a spring is connected between the clamping ball and the connecting plate, and the surface of the connecting plate is provided with a plurality of through holes. Such a design allows the pressure of the lubricating oil to push the clamping ball to overcome the spring force and separate the clamping ball from the oil inlet hole during oil injection, so that the lubricating oil can enter the oil cavity; after the oil injection is completed, the spring pushes the clamping ball to reseal the oil inlet hole, preventing the lubricating oil from flowing back, and ensuring the sealing and stability of the oil injection.

[0007] Further, the one-way piece further comprises a pipe joint, the pipe joint is threadedly engaged with the oil inlet hole, the pipe joint extrudes the clamping ball, the end of the pipe joint away from the clamping ball is provided with a slot, the end of the pipe joint near the clamping ball is closed, and the surface of the pipe joint near the clamping ball is provided with a plurality of holes. The pipe joint facilitates the connection of the oil injection equipment and the oil inlet hole, the slot design facilitates the use of tools to tighten or loosen, and the closed end and the hole design ensure the extrusion of the clamping ball and the smooth passage of the lubricating oil, further optimizing the convenience and reliability of the oil injection operation.

[0008] Further, the oil inlet hole, the conical hole and the one-way piece are provided in plurality, and the plurality of oil inlet holes, conical holes and one-way pieces are distributed at equal intervals in the circumferential direction. This can make the lubricating oil enter the oil cavity more uniformly, thereby more comprehensively lubricating the inside of the bearing, improving the lubricating effect, ensuring that each part of the bearing can be fully lubricated, and prolonging the service life of the bearing.

[0009] Further, the oil outlet hole is trumpet-shaped, and the radius of the oil outlet hole near the oil cavity is smaller than the radius of the oil outlet hole away from the oil cavity. The trumpet-shaped oil outlet hole design is conducive to the smooth flow of lubricating oil from the oil cavity and the diffusion of lubricating oil to the contact surface of the ball and the inner and outer rings, increases the oil outlet area, improves the uniformity of the distribution of lubricating oil, and enhances the lubricating effect.

[0010] Further, the bearing body further comprises a pair of sealing rings, and the pair of sealing rings are arranged on both sides of the outer ring and clamped between the outer ring and the inner ring. The sealing ring can effectively prevent the leakage of lubricating oil, and at the same time block the entry of dust, impurities and the like from the outside into the bearing interior, maintain a good lubricating environment in the bearing interior, and further improve the performance and service life of the bearing.

[0011] Further, the outer ring, the inner ring and the ball are all made of metal. Metal has high strength and wear resistance, can withstand large loads, ensures stable operation of the bearing under various working conditions, prolongs the service life of the bearing, and meets the use requirements of different mechanical equipment.

[0012] Compared with the prior art, the bearing structure convenient for oil injection has the advantages that the bearing structure convenient for oil injection can realize convenient oil injection without disassembling surrounding components, time and labor cost are saved, and damage to the bearing and related components caused by frequent disassembly is avoided; through optimization of the design of the oil injection mechanism, such as the conical hole, the one-way piece, the horn-shaped oil outlet hole and the like, precise oil injection and uniform lubrication are realized, the lubrication effect of the bearing is effectively improved, and the performance and service life of the bearing are improved; in addition, the sealing ring enhances the sealing performance and dustproof capability of the bearing, the selection of the metal material ensures the strength and wear resistance of the bearing, and the bearing can better adapt to various working environments. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A three-dimensional structure schematic diagram of the bearing structure convenient for oil injection is disclosed for the embodiments of the present application.

[0014] Figure 2 An exploded structure schematic diagram of the bearing structure convenient for oil injection is disclosed for the embodiments of the present application.

[0015] Figure 3 A Figure 2 A structure enlarged schematic diagram of the structure A.

[0016] Figure 4 A cross-sectional structure schematic diagram of the bearing structure convenient for oil injection is disclosed for the embodiments of the present application.

[0017] Figure 5 A Figure 4 A structure enlarged schematic diagram of the structure B.

[0018] In the figure: 100, bearing body; 1001, outer ring; 1002, inner ring; 1003, sealing ring; 1004, retainer; 1005, ball; 200, oil injection mechanism; 2002, pipe joint; 2003, eyelet; 2004, oil inlet hole; 2005, oil cavity; 2006, oil outlet hole; 2007, conical hole; 2008, ball; 2009, connecting plate; 2010, spring; 2011, through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] The embodiment applies the bearing structure convenient for oil injection to the roller bearing of a textile machine. The roller bearing needs to be continuously and stably operated during the operation of the textile machine, and the lubricating effect is extremely high. The traditional bearing oil injection mode is not only cumbersome, but also has the problems of insufficient oil injection and impurities mixed in the dusty environment of the textile workshop, which seriously affects the service life of the roller bearing and the quality of the textile products.

[0021] Please refer to Figure 1 - Figure 5 The utility model provides a technical scheme: a bearing structure convenient for oil injection, comprising the following steps:

[0022] Before installation, the installation position of the roller part of the textile machine is cleaned to ensure that there is no dust and impurities left. The bearing structure of the utility model is prepared, whether each part is intact is checked, whether the sealing ring 1003 is firmly installed, and whether the pipe joint 2002 can be normally connected with the oil inlet hole 2004; the inner ring 1002 is tightly sleeved on the roller shaft, the cooperation precision of the inner ring 1002 and the shaft is ensured, the inner ring 1002 is concentric with the shaft, and the outer ring 1001 and the shell are tightly matched;

[0023] The pipe joint 2002 is screwed, at this time, the pipe joint 2002 extrudes the clamping ball 2008, so that it is away from the oil inlet hole 2004, and the oil nozzle of the oil injector is tightly connected with the slot of the pipe joint 2002. The piston of the oil injector is slowly pushed, so that the lubricating oil enters the oil cavity 2005 through the eyelet 2003 and the tapered hole 2007; since the oil outlet hole 2006 is trumpet-shaped and connected with the oil cavity 2005, the lubricating oil flows out from the oil outlet hole 2006 under the action of pressure and is uniformly diffused to the contact surface of the ball 1005 and the outer ring 1001, with the rotation of the ball 1005, the contact surface of the ball 1005 and the inner ring 1002 will also be coated with lubricating oil, and the remaining contact surface of the ball 1005 will also be coated with lubricating oil. Since the oil inlet hole 2004, the tapered hole 2007 and the one-way piece are distributed at equal distances in the circumferential direction, oil can be injected from multiple injection points to ensure that the lubricating oil is more uniformly injected into the oil cavity 2005, and the internal bearing is fully lubricated.

[0024] Then the pipe joint 2002 is unscrewed, at this time, the pipe joint 2002 no longer extrudes the clamping ball 2008, and the clamping ball 2008 will reset under the action of the spring 2010, thereby sealing the oil inlet hole 2004 to prevent the lubricating oil from flowing back.

[0025] Specifically, the working principle of the bearing structure convenient for oil injection is as follows:

[0026] Principle of oil injection: when using the oil injector, the pipe joint 2002 extrudes the ball 2008, making it away from the oil inlet hole 2004, and connects the oil nozzle with the pipe joint 2002, slowly pushes the piston of the oil injector, and makes the lubricating oil enter the oil cavity 2005 through the hole 2003 and the tapered hole 2007; because the oil inlet hole 2004, the tapered hole 2007 and the one-way piece are distributed at equal distances in the circumference, the oil can be injected from multiple points, ensuring that the lubricating oil is evenly injected into the oil cavity;

[0027] Principle of oil outlet and lubrication: the lubricating oil in the oil cavity 2005 flows out through the trumpet-shaped oil outlet hole 2006 due to the pressure; the oil outlet hole 2006 has a small radius near the oil cavity 2005 and a large radius away from it, which is beneficial to the diffusion of the lubricating oil to the contact surface of the ball 1005, the outer ring 1001 and the inner ring 1002; when the ball 1005 rolls, it drives the lubricating oil to be evenly distributed, achieving comprehensive lubrication of the internal contact parts of the bearing;

[0028] Principle of preventing backflow: after the oil injection is completed, the pressure of the pipe joint 2002 disappears, the spring 2010 pushes the ball 2008 to reseal the oil inlet hole 2004, preventing the lubricating oil from flowing back, and the through hole 2011 on the connecting plate 2009 allows the lubricating oil to pass through during oil injection, and prevents backflow after oil injection.

Claims

1. A bearing structure which is convenient for oiling, characterized by Include: The bearing body (100) includes an outer ring (1001), an inner ring (1002), and the inner ring (1002) is located in the outer ring (1001), and coaxial with the outer ring (1001), the outer ring (1001), inner ring (1002) between provided with retainer (1004), the side of the retainer (1004) is equidistantly distributed with a plurality of openings, the opening is all rolling with ball (1005), and the ball (1005) and the outer ring (1001), inner ring (1002) contact; The oil injection mechanism (200) includes an oil cavity (2005) opened in the inner part of the outer ring (1001), the inner wall of the outer ring (1001) is equidistantly distributed with a plurality of oil outlet holes (2006), the oil outlet hole (2006) is connected with the oil cavity (2005), the outer wall of the outer ring (1001) is equidistantly distributed with a plurality of oil inlet holes (2004), the oil inlet hole (2004) and the oil cavity (2005) are communicated with the tapered hole (2007), the inside of the tapered hole (2007) is provided with a one-way piece for preventing backflow of lubricating oil.

2. The bearing structure of claim 1, wherein The radius of one end of the tapered hole (2007) close to the oil inlet hole (2004) is smaller than the radius of the other end close to the oil cavity (2005), the one-way piece includes a connecting plate (2009) installed in the tapered hole (2007), the connecting plate (2009) and the oil inlet hole (2004) are provided with a ball (2008), the ball (2008) seals the oil inlet hole (2004), the ball (2008) and the connecting plate (2009) are connected with a spring (2010), the surface of the connecting plate (2009) is provided with a plurality of through holes (2011).

3. A bearing construction according to claim 2, wherein The one-way piece further includes a pipe joint (2002), the pipe joint (2002) and the oil inlet hole (2004) are threadedly engaged, and the pipe joint (2002) extrudes the ball (2008), one end of the pipe joint (2002) away from the ball (2008) is provided with a slot, one end of the pipe joint (2002) close to the ball (2008) is closed, and the surface of the pipe joint (2002) close to the ball (2008) is provided with a plurality of eyelets (2003).

4. The bearing structure of claim 2, wherein The oil inlet hole (2004), the tapered hole (2007) and the one-way piece are provided with a plurality of equidistantly distributed oil inlet holes (2004), tapered holes (2007) and one-way pieces.

5. The oil- lubricated bearing structure according to claim 1, characterized in that The oil outlet hole (2006) is trumpet-shaped, and the radius of one end of the oil outlet hole (2006) close to the oil cavity (2005) is smaller than the radius of the other end away from the oil cavity (2005).

6. The oil- lubricated bearing structure according to claim 1, characterized in that The bearing body (100) further comprises a pair of sealing rings (1003), and the pair of sealing rings (1003) are respectively arranged on two sides of the outer ring (1001) and clamped between the outer ring (1001) and the inner ring (1002).

7. The oil- lubricated bearing structure according to claim 1, characterized in that The outer ring (1001), the inner ring (1002) and the rolling ball (1005) are all made of metal.

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