Bearing with stable lubricating performance

Abstract

The invention discloses a bearing with stable lubricating performance, and relates to the technical field of bearing devices, the bearing comprises a static bearing and a dynamic bearing, the static bearing comprises a shell and a porous oil storage bushing, a sealing ring is arranged on one side of the porous oil storage bushing, an oil supplementing mechanism is arranged on one side of the sealing ring, and an auxiliary ring is arranged on one side of the oil supplementing mechanism; a movable bearing is arranged in the porous oil storage bushing and comprises a shearing shaft sleeve, a shaft wheel and supporting frames, the shaft wheel is arranged on the outer wall of the shearing shaft sleeve, the supporting frames are arranged on the two sides of the shearing shaft sleeve, the shearing shaft sleeve and the porous oil storage bushing are combined through the supporting frames, and one side of the shearing shaft sleeve is connected with an oil supplementing mechanism. An oil scraping plate and an oil outlet hole are integrated by rotating an oil supplementing arm, so that dynamic lubrication supply and pore self-cleaning are realized; by adopting the non-Newtonian fluid lubricant, the viscosity is improved under high-speed shearing, and the stability of an oil film under extreme working conditions is enhanced; the connecting block enables the oil supplementing system and the bearing to rotate synchronously, and self-adjusting lubricating circulation is formed.

Description

Technical Field

[0001] This invention relates to the field of bearing assembly technology, and more specifically, to a bearing with stable lubrication performance. Background Technology

[0002] Bearings are critical components widely used in mechanical equipment, and their lubrication performance directly determines the equipment's operating efficiency, lifespan, and reliability. Especially under conditions of high speed, heavy load, extreme temperatures, or long-term maintenance-free operation, the requirements for the continuity and stability of bearing lubrication are extremely high. In existing bearings, the lubricant in the oil reservoir structure is gradually consumed or lost during operation, especially at high speeds or high temperatures where it evaporates even faster, leading to insufficient lubrication and increased wear. At the same time, static or low-speed oil replenishment methods cannot guarantee that the lubricant forms a uniform and complete oil film on the friction pair surface of the high-speed rotating bearing, which can easily lead to local dry friction or poor lubrication areas. Furthermore, under extremely high shear rates or impact loads, the viscosity of traditional lubricating oil may decrease excessively or fail to respond quickly enough to form an effective lubricating film, resulting in boundary lubrication or even failure.

[0003] Therefore, a bearing with stable lubrication performance is proposed to address the above problems. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing with stable lubrication performance to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bearing with stable lubrication performance, comprising a static bearing and a dynamic bearing. The static bearing includes a housing and a porous oil reservoir bushing. A sealing ring is provided on one side of the porous oil reservoir bushing, an oil replenishing mechanism is provided on one side of the sealing ring, and an auxiliary ring is provided on one side of the oil replenishing mechanism. A dynamic bearing is provided inside the porous oil reservoir bushing. The dynamic bearing includes a shearing bushing, a shaft wheel, and a support frame. A shaft wheel is provided on the outer wall of the shearing bushing. Several groups of shaft wheels are provided, and each group of shaft wheels is evenly arranged along the circumference of the shearing bushing. Each group of shaft wheels is inclined at a 45-degree angle to the surface of the shearing bushing. Support frames are provided on both sides of the shearing bushing, and the shearing bushing is combined with the porous oil reservoir bushing through the support frames. One side of the shearing bushing is connected to the oil replenishing mechanism.

[0006] Preferably, a protective ridge is provided on one side of the porous oil storage bushing, and a slide rail is provided on one side of the protective ridge. A roller is provided inside the slide rail, and the roller is connected to the oil replenishment mechanism, so that the oil replenishment mechanism can rotate along the slide rail.

[0007] Preferably, the outer wall of the porous oil storage bushing is provided with tapered holes, and there are several groups of tapered holes. Each group of tapered holes is evenly arranged along the circumference of the porous oil storage bushing. The tapered holes are wider at the top and narrower at the bottom, so that the lubricating fluid of the oil replenishment mechanism lubricates the moving bearing along the tapered holes.

[0008] Preferably, the auxiliary ring includes a rotating shaft, fastening rings, and locking bolts. Fastening rings are provided on both sides of the outer wall of the rotating shaft. One side of the two sets of fastening rings is fixed by the locking bolts. By adjusting the locking bolts, the fastening rings can be rotated along the rotating shaft.

[0009] Preferably, the oil replenishment mechanism includes an oil replenishment arm, an oil replenishment pipe, and an oil replenishment tank. An oil replenishment pipe is provided on one side of the oil replenishment arm, and an oil replenishment tank is provided on one side of the oil replenishment pipe. A rotating shaft is provided at the bottom of the oil replenishment tank, and the oil replenishment tank is connected to the auxiliary ring through the rotating shaft.

[0010] Preferably, an oil nozzle is provided on one side of the oil replenishing arm, and scrapers are provided on both sides of the oil nozzle. The scrapers move in a circular motion against the outer wall of the porous oil storage bushing under the drive of the oil replenishing arm.

[0011] Preferably, the refueling tank includes a mixing tank, a counter, a battery connector, and a pressing assembly. The counter is provided on one side of the mixing tank, the battery connector is provided on one side of the counter, and the pressing assembly is provided on one side of the battery connector.

[0012] Preferably, the bottom of the oil replenishing arm is provided with a connecting block, and one side of the connecting block is provided with a connecting groove. The connecting groove is fixed to one side of the outer wall of the shearing bushing, and the connecting block is fixedly connected to the inside of the connecting groove, so that the oil replenishing mechanism, the sealing ring and the auxiliary ring rotate with the moving bearing.

[0013] Preferably, the top of the mixing tank is provided with a feeding port, the interior of the mixing tank is filled with a non-Newtonian fluid material as lubricant, a sealing cap is provided on one side of the feeding port, and the oil replenishment chamber and the moving bearing rotate along the stationary bearing to continuously mix the non-Newtonian fluid material.

[0014] Preferably, the outer wall of the shaft wheel is provided with an oil storage hole, and there are several groups of oil storage holes. Each group of oil storage holes is evenly arranged along the circumferential direction of the outer wall of the shaft wheel, so that the non-Newtonian fluid material is wrapped around the surface of the shaft wheel through the porous oil storage bushing.

[0015] The technical effects and advantages of this invention are as follows: 1. Compared with existing technologies, this bearing with stable lubrication performance achieves continuous and dynamic lubrication supply by incorporating an oil replenishing arm that rotates synchronously with the moving bearing and integrating an oil outlet and a scraper on the surface of the arm that contacts the porous oil reservoir bushing. The rotating scraper actively removes impurities or aged oil films that may clog the pores on the bushing surface, effectively preventing pore blockage and ensuring that the lubricant can smoothly and evenly seep from the porous bushing to the friction interface.

[0016] 2. Compared with existing technologies, this bearing with stable lubrication performance is achieved by filling a rotating lubrication chamber with a material that forms a non-Newtonian fluid. As the bearing rotates, the viscosity of this fluid increases significantly under shear stress. This characteristic allows the lubricant viscosity to increase even at high speeds, forming a more stable lubricating film that effectively resists oil film rupture under extreme operating conditions.

[0017] 3. Compared with existing technologies, this bearing with stable lubrication performance is fixedly connected to the shear sleeve of the moving bearing via a connecting block, allowing the entire oil replenishment system to rotate synchronously with the moving bearing. This design naturally synchronizes the mixing, pressurization, and delivery processes of the lubricant with the operating state of the bearing. The supply and state of the lubricant can dynamically respond to the actual needs of the bearing, forming a highly efficient self-circulating and self-regulating lubrication system.

[0018] 4. Compared with the prior art, this bearing with stable lubrication performance can effectively capture and store lubricant by using uniformly distributed oil storage holes on the surface of the shaft wheel, combined with the continuous oil seepage and rotational coating effect of the porous oil storage bushing. This forms local micro oil storage pools, significantly prolonging the residence time of lubricant on key friction surfaces and ensuring that the contact area between the shaft wheel and the bushing receives lasting and sufficient lubrication coverage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0020] Figure 2 This is a side view of the overall three-dimensional structure of the present invention.

[0021] Figure 3 This is a three-dimensional exploded view of the bearing portion of the present invention.

[0022] Figure 4 This is a schematic diagram of a partial three-dimensional structure of the moving bearing of the present invention.

[0023] Figure 5 This is a partial three-dimensional exploded view of the static bearing and oil replenishment mechanism of the present invention.

[0024] Figure 6 This is a partial three-dimensional structural diagram of the porous oil storage bushing of the present invention.

[0025] Figure 7This is a partial three-dimensional structural diagram of the oil replenishment mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional perspective structural diagram of the oil replenishment tank of the present invention.

[0027] The attached figures are labeled as follows: 1. Static bearing; 11. Housing; 12. Porous oil reservoir bushing; 121. Protective ridge; 122. Slide rail; 123. Tapered hole; 13. Sealing ring; 2. Moving bearing; 21. Shear bushing; 22. Shaft wheel; 221. Oil reservoir; 23. Support frame; 3. Oil replenishment mechanism; 31. Oil replenishment arm; 32. Oil replenishment pipe; 33. Oil replenishment tank; 331. Mixing oil tank; 332. Counter; 333. Battery connector; 334. Pushing assembly; 4. Auxiliary ring; 41. Rotating shaft; 42. Fastening ring; 43. Locking bolt; 5. Roller; 6. Oil nozzle; 7. Scraper; 8. Connecting block; 9. Feed port; 91. Sealing cover; 10. Connecting groove. Detailed Implementation

[0028] 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.

[0029] Example 1: As shown in the attached document Figures 1 to 8 The bearing shown has stable lubrication performance and includes a stationary bearing 1 and a moving bearing 2. The stationary bearing 1 includes a housing 11 and a porous oil reservoir bushing 12. A sealing ring 13 is provided on one side of the porous oil reservoir bushing 12, an oil replenishing mechanism 3 is provided on one side of the sealing ring 13, and an auxiliary ring 4 is provided on one side of the oil replenishing mechanism 3. The moving bearing 2 is disposed inside the porous oil reservoir bushing 12. The moving bearing 2 includes a shearing bushing 21, a shaft wheel 22, and a support frame 23. A shaft wheel 22 is provided on the outer wall of the shear sleeve 21. Several sets of shaft wheels 22 are provided. Each set of shaft wheels 22 is evenly arranged along the circumference of the shear sleeve 21, and each set of shaft wheels 22 is inclined at a 45-degree angle on the surface of the shear sleeve 21. Support frames 23 are provided on both sides of the shear sleeve 21. The shear sleeve 21 is combined with the porous oil storage bushing 12 through the support frames 23. One side of the shear sleeve 21 is connected to the oil replenishment mechanism 3.

[0030] Specifically, the main body of the stationary bearing 1 is composed of a housing 11, which is typically made of high-strength wear-resistant alloy steel. A porous oil reservoir bushing 12 is tightly fixed to its inner wall. This porous oil reservoir bushing 12 is preferably made of sintered metal and has an interconnected microporous structure for adsorbing and slowly releasing lubricant. An annular sealing ring 13 is fixedly installed on the end face of the porous oil reservoir bushing 12 facing the outside of the bearing. This sealing ring 13 can be made of elastic sealing materials such as rubber or polytetrafluoroethylene (PTFE), and its core function is to prevent external contaminants from entering the bearing and reduce internal lubricant leakage. An oil replenishing mechanism 3 is provided adjacent to the inner side of the sealing ring 13, facing the inside of the bearing. The specific structure of this oil replenishing mechanism 3 will be described in detail in subsequent claims. An auxiliary ring 4 is provided on the axial inner side of the oil replenishing mechanism 3, which mainly supports and limits the rotation path of the oil replenishing mechanism 3. The core of the moving bearing 2 is a shear bushing 21, which is typically a high-hardness alloy steel cylindrical structure with several sets of shaft wheels machined on its outer circumferential surface. 22. Each group comprises multiple rollers 22, which are preferably slightly convex raceways or ball bearing structures. The groups are evenly spaced along the circumference of the shear sleeve 21, and the centerline of each roller 22 within the same group is inclined at a 45-degree angle relative to the axis of the shear sleeve 21. This inclined arrangement facilitates effective shear force transmission and lubricant distribution during rotation. Support frames 23 are fixedly connected to both ends of the shear sleeve 21. These support frames 23 are typically annular flanges or mounting brackets. The end cap structure of the hole has an outer diameter that matches the inner diameter of the porous oil reservoir bushing 12. The moving bearing 2 is precisely assembled and supported inside the porous oil reservoir bushing 12 of the stationary bearing 1 via the support frame 23, allowing the moving bearing 2 to rotate relative to it. The shearing bushing 21, located near the oil replenishment mechanism 3 and the sealing ring 13, is fixedly connected to the oil replenishment mechanism 3 via a specific connection structure on its end face or outer wall, ensuring that the oil replenishment mechanism 3 can rotate synchronously with the moving bearing 2, achieving dynamic oil replenishment. This structure ensures precise alignment and smooth rotation of the bearing through the support frame 23, and increases effective contact and shearing action with the porous oil reservoir bushing 12 through the 45-degree inclined shaft wheel 22, providing a foundation for subsequent oil replenishment and lubrication.

[0031] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 8 As shown below, see details: In a preferred embodiment, the porous oil storage bushing 12 has an integrally formed or welded annular protrusion structure as a protective ridge 121 machined along the circumferential direction on its end face near the sealing ring 13 and the oil replenishing mechanism 3. This protective ridge 121 is preferably made of a wear-resistant material with the same or higher hardness as the porous oil storage bushing 12, such as powder metallurgy alloy. Its height is slightly higher than the bushing end face. Its core function is to form a physical barrier, effectively preventing external impurities or accidental impacts from directly acting on the slide rail 122 and the oil replenishing mechanism 3, while simultaneously enhancing the overall structural strength of this area. On the inner wall of the protective ridge 121 facing the bearing center axis, a ring-shaped slide rail 122 is precisely machined or inlaid. This slide rail 122 is preferably a smooth groove or protruding track made of hard alloy, with a cross-section typically arc-shaped or dovetail-shaped, ensuring its inner surface has a low coefficient of friction and high wear resistance. Inside the slide rail 122… A set of rollers 5 is provided, which are usually small precision roller bearings. The outer ring of the rollers 5 directly contacts the working surface of the slide rail 122. The rollers 5 are rigidly connected to a specific part of the oil replenishing mechanism 3 near the end of the porous oil storage bushing 12 through a wheel axle or mounting base. This allows the entire oil replenishing mechanism 3 to be stably supported and guided by the precise fit between the rollers 5 and the slide rail 122. When the moving bearing 2 rotates and drives the oil replenishing mechanism 3, the rollers 5 roll with low friction in the slide rail 122. This allows the oil replenishing mechanism 3 to rotate smoothly, steadily, and with a precise trajectory along the circular path defined by the slide rail 122 in the circumferential direction of the porous oil storage bushing 12. This not only ensures the stability of the oil replenishing action but also avoids uneven lubrication or abnormal wear of the bushing surface by the scraper 7 caused by shaking. At the same time, the fit design between the slide rail 122 and the protective ridge 121 further improves the sealing and protection effect of this rotating interface area.

[0032] In a preferred embodiment, the porous oil reservoir bushing 12 has several sets of tapered holes 123 machined on its inner circumferential surface that contacts the shaft wheel 22 of the moving bearing 2. Each set contains multiple tapered holes 123, and these sets are evenly spaced along the circumferential direction of the porous oil reservoir bushing 12. Furthermore, each tapered hole 123 within each set is also evenly arranged circumferentially to ensure complete lubricant coverage. Each tapered hole 123 is mechanically formed, and its key feature is a funnel-shaped structure that is wider at the top and narrower at the bottom. That is, the inlet diameter near the inner wall of the oil reservoir bushing is larger, while the outlet diameter near the outer wall is smaller. This unique geometric design is based on fluid dynamics principles: when the oil replenishment mechanism 3 outputs… When the non-Newtonian fluid lubricant is applied to the outer wall of the porous oil reservoir bushing 12, the larger inlet facilitates rapid reception and temporary storage of the lubricant, reducing flow resistance. The gradually narrowing outlet generates capillary effect and pressurization, which on the one hand guides the lubricant to seep out more concentratedly and stably, and on the other hand helps maintain the pressure inside the hole, preventing the hole wall from being blocked by external pressure or debris intrusion, thus ensuring the long-term unobstructed flow of the pores. Driven by pressure difference and capillary force, the lubricant flows smoothly downward along the inner wall of the tapered hole 123, and finally seeps out precisely and evenly from the narrow outlet into the surface of the shaft wheel 22 of the moving bearing 2 and its oil reservoir 221, achieving continuous and sufficient immersion lubrication of the friction pair.

[0033] In a preferred embodiment, the core function of the auxiliary ring 4 is to provide stable rotational support and axial positioning for the oil replenishment mechanism 3. Its main body is a rotating shaft 41, which is typically a high-precision cold-drawn optical shaft. Both ends are fixed to the end structure of the stationary bearing 1 via bearings or bushings, ensuring that its own axis coincides with the bearing axis. On the outer circumferential surface of the rotating shaft 41, two annular fastening rings 42 are respectively fitted at certain positions from both ends. These fastening rings 42 preferably have a split structure, are made of hard aluminum alloy or steel, and their inner diameter precisely matches the outer diameter of the rotating shaft 41, allowing them to slide axially along the rotating shaft 41 and rotate around it. A lug with a through hole is provided on one side of each of the two fastening rings 42. At least one set of locking screws... Bolt 43 passes through the through holes of the lugs on both sides and is locked with matching nuts. When the locking bolt 43 is tightened, the clamping force it generates forces the semi-ring structure of the two fastening rings 42 to contract radially, thereby clamping and fixing them to the desired axial position of the rotating shaft 41. Conversely, when the locking bolt 43 is loosened, the radial constraint of the fastening rings 42 is released, and their position can be adjusted by moving them axially along the rotating shaft 41, or by making fine adjustments to their rotation angle around the shaft. This design allows for flexible adjustment of the position and angle of the fastening rings 42 on the rotating shaft 41 during installation or maintenance, based on the actual assembly of the oil replenishing mechanism 3 and the moving bearing 2, ensuring the stability and concentricity of the bottom connection of the oil replenishing chamber 33, thereby ensuring the stability and low vibration of the entire oil replenishing mechanism 3 during rotation.

[0034] In a preferred embodiment, the oil replenishment mechanism 3 is the core functional unit for achieving dynamic lubrication. Its structure comprises three main components: the oil replenishment arm 31 is typically a slender, rigid rod, with one end directly or indirectly equipped with an oil nozzle 6 and a scraper 7 for distributing lubricating fluid; the other end is fixedly connected to the oil replenishment pipe 32 via welding or a flange. This oil replenishment pipe 32 is preferably a flexible, oil-resistant hose for reliably delivering lubricating fluid; the other end of the oil replenishment pipe 32 is connected to the outlet end of the oil replenishment tank 33. The oil replenishment tank 33 is typically designed as a cylindrical or square sealed container, its main body being a mixing tank 331 for storing and mixing non-Newtonian fluid lubricating materials; in the oil replenishment... At the bottom center of the reservoir 33, a downward-extending rotating shaft 41 is fixedly installed. The specific structure and model of the rotating shaft 41 are completely consistent with the rotating shaft 41 of the auxiliary ring 4 as defined in claim 4. By precisely assembling and fixing the lower end of the rotating shaft 41 between the two adjustable fastening rings 42 of the auxiliary ring 4, the entire oil replenishment reservoir 33 and its connected oil replenishment pipe 32 and oil replenishment arm 31 are integrated as a whole. They can rotate with low resistance around the rotating shaft 41 as the center and under the stable support of the auxiliary ring 4. This rotating connection design is the key to ensuring the synchronous rotation of the oil replenishment mechanism 3 and the moving bearing 2, so that the delivery of lubricant is matched with the bearing movement state in real time.

[0035] In a preferred embodiment, an oil nozzle 6 is fixedly installed at one end of the oil replenishing arm 31 facing the outer wall of the porous oil storage bushing 12. The oil nozzle 6 is typically a flat nozzle structure made of cemented carbide, and its internal channel communicates with the oil replenishing arm 31 or the oil replenishing pipe 32, for directionally spraying lubricating fluid from the oil replenishing tank 33 onto the outer wall surface of the porous oil storage bushing 12. A scraper 7 is provided on each of the front and rear sides of the oil nozzle 6 along the circumferential movement direction. The scraper 7 is preferably made of an elastic and wear-resistant material, and its working edge... The oil replenishing arm 31 is tightly fitted with screws or clips, ensuring that its cutting edge remains in contact with the outer wall of the porous oil storage bushing 12 with a slight pre-pressure after assembly. When the oil replenishing arm 31 rotates with the follow bearing 2, the two scrapers 7 are driven synchronously, making a stable circumferential motion close to the outer wall of the bushing. The scraper 7 located in front of the rotation direction mainly plays a scraping role, and its cutting edge can scrape off the impurities attached to the outer wall of the porous oil storage bushing 12 in time, effectively preventing these impurities from clogging the entrance of the lower conical hole 123.

[0036] In a preferred embodiment, the mixing tank 331 adopts a stainless steel cavity structure, and is filled with lubricating fluid raw materials such as silicon-based non-Newtonian fluid materials through the feed port 9. Automatic mixing is achieved by centrifugal force when the bearing rotates. The counter 332 is a standard electronic counter model such as Omron E6C2-C, which is used to monitor the number of rotations or lubrication cycles of the moving bearing 2 in real time. When the count value reaches a preset threshold, an oil replenishment signal is triggered. The battery connector 333 is configured as an 18650 lithium battery holder to provide a stable power supply for the counter 332 and the push assembly 334. The push assembly 334 adopts a piston-type push assembly, which pushes the mixed lubricating fluid from the mixing tank 331 into the oil replenishment arm 31 based on the count signal.

[0037] By combining the rotational power of the bearing to promote the shear thickening properties of non-Newtonian fluid materials, the counter 332 intelligently monitors the lubrication demand, and the push assembly 334 ensures that the lubricant is evenly output to the porous oil reservoir bushing 12, thereby improving the continuity of lubrication, preventing hole blockage, and enhancing the wear resistance of the shaft wheel 22.

[0038] In a preferred embodiment, the connecting block 8 is a dovetail-shaped slider forged from 45# steel, with a height half the wall thickness of the oil storage bushing 12. The connecting groove 10 is a T-shaped groove corresponding to the outer wall of the shear bushing 21, with a groove depth of 1 / 4 of the bushing wall thickness. The connecting block 8 is vertically locked into the groove by M6 hexagon socket bolts. The wedge-shaped fit between the connecting block 8 and the connecting groove 10 enables the transmission of rotational torque, while allowing slight axial displacement to compensate for thermal expansion differences. This ensures that the scraper 7 always adheres to the outer wall of the porous oil storage bushing 12, continuously scraping away impurities at the orifice, preventing blockage of the tapered hole 123, and eliminating vibration of the oil replenishing arm 31 through rigid connection, thus maintaining stable oil outlet pressure of the oil nozzle 6.

[0039] In a preferred embodiment, the mixing tank 331 is made of 304 stainless steel with a one-piece molded cavity. The top feeding port 9 is configured as a quick-release threaded interface, and a leak-proof structure is formed by a silicone sealing gasket and an aluminum alloy sealing cap 91. The lubricant is a silicon-based non-Newtonian fluid, and its filling volume accounts for 80% of the tank volume to reserve shear space. When the moving bearing 2 drives the oil replenishment tank 33 to rotate, the linkage structure of claim 8 is referred to. The six sets of inclined baffles in the tank apply continuous shear force to the fluid, and the shear thickening characteristics of the non-Newtonian fluid are used to make the suspended particles evenly dispersed and avoid sedimentation and stratification.

[0040] In a preferred embodiment, the oil storage cavity 221 on the outer wall of the shaft wheel 22 adopts a hemispherical recess design, which is formed into an 8×8 array by machining on the 45-degree inclined surface of the shaft wheel 22 with a carbide ball end mill. When the non-Newtonian fluid lubricant seeps out from the conical hole 123 of the porous oil storage bushing 12, the hemispherical recess uses the centrifugal force of rotation to form a local negative pressure zone, which actively draws the lubricant into the oil storage cavity 221 for temporary storage. At the same time, when the shaft wheel 22 contacts the porous oil storage bushing 12, the acute angle structure of the edge of the oil storage cavity 221 applies shear force to the lubricant, triggering the shear thickening effect of the non-Newtonian fluid, which causes the viscosity of the lubricant to increase instantaneously and form a micron-level oil film. In terms of technical effect, it achieves dual lubrication protection. When static, the oil storage cavity 221 maintains the basic lubrication layer. When dynamic, it generates a high-pressure lubrication film through shear thickening, reducing the sliding wear between the 45-degree angle shaft wheel 22 and the porous oil storage bushing 12.

[0041] The working process of this invention is as follows: When the moving bearing 2 rotates, the rigid connection between the connecting block 8 and the connecting groove 10 drives the oil replenishment mechanism 3 to rotate synchronously along the circumference of the stationary bearing 1; the non-Newtonian fluid in the oil replenishment chamber 33 generates a shear thickening effect under the action of centrifugal force, and after being pressurized by the pushing component 334, it is transported to the oil replenishment arm 31 through the oil replenishment pipe 32; the lubricant is squeezed out from the oil nozzle 6 and seeps into the conical hole 123 of the porous oil storage bushing 12, while the scraper 7 continuously scrapes away impurities on the bushing surface during rotation to ensure that the oil passage is unobstructed; the lubricant permeates to the surface of the shaft wheel 22 through the conical hole and is captured and temporarily stored by the oil storage hole 221; when the shaft wheel 22 contacts the oil storage bushing at a 45-degree angle, the acute angle structure of the edge of the oil storage hole 221 applies shear force to the lubricant, triggering the viscosity increase of the non-Newtonian fluid again, forming a dynamic high-pressure oil film on the contact surface. The above is the working principle of this bearing with stable lubrication performance.

Claims

1. A bearing with stable lubrication performance, comprising a static bearing (1) and a dynamic bearing (2), characterized in that: The stationary bearing (1) includes a housing (11) and a porous oil reservoir bushing (12). A sealing ring (13) is provided on one side of the porous oil reservoir bushing (12), and an oil replenishment mechanism (3) is provided on one side of the sealing ring (13). An auxiliary ring (4) is provided on one side of the oil replenishment mechanism (3). A moving bearing (2) is provided inside the porous oil reservoir bushing (12). The moving bearing (2) includes a shear bushing (21), a shaft wheel (22), and a support frame (23). A shaft wheel is provided on the outer wall of the shear bushing (21). (22) The shaft wheel (22) is provided in several groups. Each group of shaft wheels (22) is evenly arranged along the circumference of the shearing bushing (21). Each group of shaft wheels (22) is inclined at a 45-degree angle on the surface of the shearing bushing (21). Support frames (23) are provided on both sides of the shearing bushing (21). The shearing bushing (21) is combined with the porous oil storage bushing (12) through the support frames (23). One side of the shearing bushing (21) is connected to the oil replenishment mechanism (3).

2. The bearing with stable lubrication performance according to claim 1, characterized in that: The porous oil storage bushing (12) has a protective ridge (121) on one side, and a slide rail (122) is provided on one side of the protective ridge (121). A roller (5) is provided inside the slide rail (122), and the roller (5) is connected to the oil replenishment mechanism (3).

3. The bearing with stable lubrication performance according to claim 1, characterized in that: The outer wall of the porous oil storage bushing (12) is provided with a conical hole (123). The conical hole (123) is provided in several groups, and each group of the conical hole (123) is evenly arranged along the circumferential direction of the porous oil storage bushing (12). The conical hole (123) is wider at the top and narrower at the bottom.

4. The bearing with stable lubrication performance according to claim 1, characterized in that: The auxiliary ring (4) includes a rotating shaft (41), a fastening ring (42) and a locking bolt (43). Fastening rings (42) are provided on both sides of the outer wall of the rotating shaft (41). One side of the two sets of fastening rings (42) is fixed by the locking bolt (43). By adjusting the locking bolt (43), the fastening ring (42) can be rotated along the rotating shaft (41).

5. A bearing with stable lubrication performance according to claim 4, characterized in that: The oil replenishment mechanism (3) includes an oil replenishment arm (31), an oil replenishment pipe (32), and an oil replenishment tank (33). An oil replenishment pipe (32) is provided on one side of the oil replenishment arm (31), and an oil replenishment tank (33) is provided on one side of the oil replenishment pipe (32). A rotating shaft (41) is provided at the bottom of the oil replenishment tank (33), and the oil replenishment tank (33) is connected to the auxiliary ring (4) through the rotating shaft (41).

6. A bearing with stable lubrication performance according to claim 5, characterized in that: An oil nozzle (6) is provided on one side of the oil replenishing arm (31), and scrapers (7) are provided on both sides of the oil nozzle (6). The scrapers (7) move in a circular motion against the outer wall of the porous oil storage bushing (12) under the drive of the oil replenishing arm (31).

7. A bearing with stable lubrication performance according to claim 5, characterized in that: The refueling tank (33) includes a mixing tank (331), a counter (332), a battery connector (333), and a push assembly (334). The counter (332) is provided on one side of the mixing tank (331), the battery connector (333) is provided on one side of the counter (332), and the push assembly (334) is provided on one side of the battery connector (333).

8. A bearing with stable lubrication performance according to claim 5, characterized in that: The bottom of the oil replenishing arm (31) is provided with a connecting block (8), and a connecting groove (10) is provided on one side of the connecting block (8). The connecting groove (10) is fixed to one side of the outer wall of the shearing bushing (21), and the connecting block (8) is fixedly connected to the inside of the connecting groove (10).

9. A bearing with stable lubrication performance according to claim 7, characterized in that: The mixing tank (331) is provided with a feeding port (9) at the top. The mixing tank (331) is filled with a non-Newtonian fluid material as a lubricant. A sealing cap (91) is provided on one side of the feeding port (9). When the oil replenishment chamber (33) and the moving bearing (2) rotate along the stationary bearing (1), the non-Newtonian fluid material is continuously mixed.

10. A bearing with stable lubrication performance according to claim 1, characterized in that: The outer wall of the axle wheel (22) is provided with an oil storage hole (221), and there are several groups of oil storage holes (221), and each group of oil storage holes (221) is evenly arranged along the circumferential direction of the outer wall of the axle wheel (22).

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