A bearing with stable lubricating performance

Abstract

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

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing device, more particularly, the present application relates to a bearing with stable lubrication performance. BACKGROUND

[0002] Bearing is a key basic part widely used in mechanical equipment, and its lubrication performance directly determines the operation efficiency, service life and reliability of the equipment. Especially in high-speed, heavy-load, extreme temperature or long-term maintenance-free working conditions, the continuity and stability of bearing lubrication are extremely high;

[0003] The lubricant in the oil storage structure of the existing bearing will gradually be consumed or lost during operation, especially at high speed or high temperature, and the lubricant will volatilize faster, resulting in insufficient lubrication and aggravating wear. At the same time, the static or low-speed oil supplementing method is difficult to ensure that the lubricant forms a uniform and complete oil film on the surface of the bearing friction pair rotating at high speed, and local dry friction or poor lubrication area is easy to occur. And under extremely high shear rate or impact load, the viscosity of traditional lubricating oil may decrease excessively or fail to form an effective lubricating film quickly, resulting in boundary lubrication or even failure.

[0004] Therefore, in view of the above problems, a bearing with stable lubrication performance is proposed. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a bearing with stable lubrication performance to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a bearing with stable lubrication performance, comprising a static bearing and a dynamic bearing, the static bearing comprising an outer shell and a porous oil storage bushing, one side of the porous oil storage bushing being provided with a sealing ring, one side of the sealing ring being provided with an oil supplementing mechanism, one side of the oil supplementing mechanism being provided with an auxiliary ring, the inside of the porous oil storage bushing being provided with a dynamic bearing, the dynamic bearing comprising a shear shaft sleeve, an axle wheel and a support frame, the outer wall of the shear shaft sleeve being provided with an axle wheel, the axle wheel being provided with a plurality of groups, each group of the axle wheel being uniformly arranged along the circumferential direction of the shear shaft sleeve, and each group of the axle wheel being inclinedly arranged on the surface of the shear shaft sleeve at an angle of 45 degrees, both sides of the shear shaft sleeve being provided with a support frame, the shear shaft sleeve and the porous oil storage bushing being combined through the support frame, and one side of the shear shaft sleeve being connected with the oil supplementing mechanism.

[0007] Preferably, one side of the porous oil storage bushing is provided with a protective rib, one side of the protective rib is provided with a sliding rail, the inside of the sliding rail is provided with a roller, the roller is connected with the oil supplementing mechanism, so that the oil supplementing mechanism can rotate along the sliding rail.

[0008] Preferably, the outer wall of the porous oil storage bush is provided with tapered holes, the tapered holes are provided in groups, each group of the tapered holes is uniformly arranged along the circumferential direction of the porous oil storage bush, the tapered holes are wide at the top and narrow at the bottom, so that the lubricating liquid of the oil supplementing mechanism lubricates the dynamic bearing along the tapered holes.

[0009] Preferably, the auxiliary ring comprises a rotating shaft, a fastening ring and a locking bolt, the outer wall of the rotating shaft is provided with fastening rings on both sides, one side of the two groups of fastening rings is fixed by the locking bolt, and the fastening rings can be rotated along the rotating shaft by adjusting the locking bolt.

[0010] Preferably, the oil supplementing mechanism comprises an oil supplementing arm, an oil supplementing pipe and an oil supplementing warehouse, one side of the oil supplementing arm is provided with an oil supplementing pipe, one side of the oil supplementing pipe is provided with an oil supplementing warehouse, the bottom of the oil supplementing warehouse is provided with a rotating shaft, and the oil supplementing warehouse is connected with the auxiliary ring through the rotating shaft.

[0011] Preferably, one side of the oil supplementing arm is provided with an oil nozzle, both sides of the oil nozzle are provided with scrapers, and the scrapers are circularly moved along the outer wall of the porous oil storage bush under the driving of the oil supplementing arm.

[0012] Preferably, the oil supplementing warehouse comprises a mixed oil tank, a counter, a battery seat and a pushing assembly, one side of the mixed oil tank is provided with a counter, one side of the counter is provided with a battery seat, and one side of the battery seat is provided with a pushing assembly.

[0013] Preferably, the bottom of the oil supplementing arm is provided with a connecting block, 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 shaft sleeve, and the connecting block is fixedly connected to the inside of the connecting groove, so that the oil supplementing mechanism, the sealing ring and the auxiliary ring rotate with the dynamic bearing.

[0014] Preferably, the top of the mixed oil tank is provided with a charging port, the inside of the mixed oil tank is filled with non-Newtonian fluid material as lubricating liquid, one side of the charging port is provided with a sealing cover, and the non-Newtonian fluid material is continuously mixed when the oil supplementing warehouse and the dynamic bearing rotate along the static bearing.

[0015] Preferably, the outer wall of the shaft wheel is provided with oil storage holes, the oil storage holes are provided in groups, and each group of the oil storage holes is uniformly arranged along the circumferential direction of the outer wall of the shaft wheel, so that the non-Newtonian fluid material is wrapped on the surface of the shaft wheel through the porous oil storage bush.

[0016] The technical effects and advantages of the present application are as follows:

[0017] 1. Compared with the prior art, the bearing with stable lubricating performance realizes continuous and dynamic supply of lubricant by setting the oil supplementing arm rotating synchronously with the dynamic bearing and integrating the oil outlet hole and oil scraping plate on the surface of the oil supplementing arm contacting the porous oil storage bushing.

[0018] 2. Compared with the prior art, the bearing with stable lubricating performance fills the raw material capable of forming non-Newtonian fluid in the rotating oil supplementing warehouse. With the rotation of the bearing, the viscosity of the fluid increases significantly under the shearing action. This characteristic makes the lubricant viscosity increase when the bearing operates at high speed, forms a more stable lubricating film, and effectively resists oil film rupture under extreme working conditions.

[0019] 3. Compared with the prior art, the bearing with stable lubricating performance is fixedly connected with the shearing shaft sleeve of the dynamic bearing through the connecting block, so that the whole oil supplementing system can rotate synchronously with the dynamic bearing. This design makes the mixing, pressurizing and conveying process of the lubricant naturally synchronized with the operation state of the bearing, and the supply amount and state of the lubricant can dynamically respond to the actual demand of the bearing, forming a high-efficiency self-circulating and self-regulating lubricating system.

[0020] 4. Compared with the prior art, the bearing with stable lubricating performance can effectively capture and store lubricant to form a local micro oil storage pool by setting the uniformly distributed oil storage holes on the surface of the shaft wheel in combination with the continuous oil seepage and rotating smearing effect of the porous oil storage bushing, significantly prolonging the residence time of the lubricant on the key friction surface and ensuring that the contact area between the shaft wheel and the bushing is permanently and fully lubricated. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole three-dimensional structure schematic diagram of the application.

[0022] Figure 2 It is a whole side view three-dimensional structure schematic diagram of the application.

[0023] Figure 3 It is a bearing part three-dimensional explosion schematic diagram of the application.

[0024] Figure 4 It is a dynamic bearing part three-dimensional structure schematic diagram of the application.

[0025] Figure 5 It is a static bearing and oil supplementing mechanism part three-dimensional explosion schematic diagram of the application.

[0026] Figure 6 It is a porous oil storage bushing part three-dimensional structure schematic diagram of the application.

[0027] Figure 7This is a partial three-dimensional structural diagram of the oil replenishment mechanism of the present invention.

[0028] Figure 8 This is a three-dimensional perspective structural diagram of the oil replenishment tank of the present invention.

[0029] 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;

[0030] 2. Moving bearing; 21. Shear bushing; 22. Shaft wheel; 221. Oil reservoir; 23. Support frame;

[0031] 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;

[0032] 5. Roller; 6. Oil nozzle; 7. Scraper; 8. Connecting block; 9. Feed port; 91. Sealing cover; 10. Connecting groove. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] Specifically, the main body of the static bearing 1 is composed of a shell 11, which is usually made of high-strength wear-resistant alloy steel, and the inner wall of which is fixedly installed with a porous oil storage bushing 12, which is preferably made of sintered metal and has a micro-porous structure inside for adsorbing and releasing lubricant; at the end face of the porous oil storage bushing 12 towards the outside of the bearing, an annular sealing ring 13 is fixedly installed, which can be made of rubber or polytetrafluoroethylene elastic sealing material, and its core function is to prevent external pollutants from entering the bearing and reduce the leakage of internal lubricant; immediately adjacent to the inner side of the sealing ring 13, i.e. towards the inside of the bearing, an oil supplementing mechanism 3 is provided, the specific structure of which is described in detail in the subsequent claims; on the axial inner side of the oil supplementing mechanism 3, an auxiliary ring 4 is provided, which is mainly used to support and limit the rotation path of the oil supplementing mechanism 3; the core of the dynamic bearing 2 is a shear shaft sleeve 21, which is usually a high-hardness alloy steel cylindrical structure, and a plurality of groups of shaft wheels 22 are processed on the outer circumferential surface thereof, each group containing a plurality of shaft wheels 22, which are preferably micro-convex raceways or ball structures, and each group is uniformly spaced along the circumferential direction of the shear shaft sleeve 21, and the center line of each shaft wheel 22 in the same group is inclined at an angle of 45 degrees relative to the axis of the shear shaft sleeve 21. This inclined arrangement facilitates the formation of effective shear force transmission and lubricant distribution during rotation; at both ends of the shear shaft sleeve 21, support frames 23 are fixedly connected, which are usually annular flanges or end cap structures with mounting holes, and the outer diameter thereof is matched with the inner diameter of the porous oil storage bushing 12, and the dynamic bearing 2 is precisely assembled and supported inside the porous oil storage bushing 12 of the static bearing 1 through the support frames 23, so that the dynamic bearing 2 can rotate relatively therein; the end of the shear shaft sleeve 21 close to the oil supplementing mechanism 3 and the sealing ring 13 is fixedly connected with the oil supplementing mechanism 3 through a specific connection structure on the end face or outer wall thereof, so as to ensure that the oil supplementing mechanism 3 can rotate synchronously with the dynamic bearing 2 and realize dynamic oil supplementing. This structure ensures the precise centering and smooth rotation of the bearing through the support frames 23, and increases the effective contact and shear action with the porous oil storage bushing 12 through the 45-degree inclined shaft wheels 22, which provides a basis for subsequent oil supplementing and lubrication.

[0036] On the basis of example 1, the scheme in example 1 is further refined in combination with the specific working mode as follows: Figures 1 to 8 As shown, see the following description in detail:

[0037] As a preferred embodiment, the porous oil storage bushing 12 is provided with an annular protrusion structure as a protective ridge 121 on its side end face close to the sealing ring 13 and the oil supplementing mechanism 3, which is integrally formed or fixed by welding in the circumferential direction. The protective ridge 121 is preferably made of a wear-resistant material such as powder metallurgy alloy with the same or higher hardness as the porous oil storage bushing 12, and has a height slightly higher than the bushing end face. The core function of the protective ridge 121 is to form a physical barrier to effectively block external impurities or accidental impacts from directly acting on the sliding rail 122 and the oil supplementing mechanism 3 described below, while enhancing the overall structural strength of this area. On the inner wall of the protective ridge 121 towards the bearing center axis, a ring-shaped sliding rail 122 is precisely machined or inlaid and fixed. The sliding rail 122 is preferably made of hard alloy and has a smooth groove or protruding track with a cross-section usually in the shape of a circular arc or a dovetail, and ensures that its inner surface has a low friction coefficient and high wear resistance. Inside the sliding rail 122, a set of rollers 5 are arranged, which are usually small and precise roller bearings, with their outer rings directly in contact with the working surface of the sliding rail 122. The rollers 5 are rigidly connected to specific parts of the oil supplementing mechanism 3 close to one end of the porous oil storage bushing 12 through an axle or mounting seat, so that the entire oil supplementing mechanism 3 is stably supported and guided through the precise cooperation of the rollers 5 and the sliding rail 122. When the rotating bearing 2 rotates and drives the oil supplementing mechanism 3, the rollers 5 roll inside the sliding rail 122 with low friction, allowing the oil supplementing mechanism 3 to perform a smooth, smooth and accurate trajectory rotation in the circumferential direction of the porous oil storage bushing 12 along the circular path defined by the sliding rail 122. This not only ensures the stability of the oil supplementing action, but also avoids uneven lubrication or abnormal wear of the bushing surface by the wiper plate 7 due to shaking. At the same time, the cooperation design of the sliding rail 122 and the protective ridge 121 further enhances the sealing and protection effect of this rotating interface area.

[0038] As a preferred embodiment, the porous oil storage sleeve 12 is machined with several groups of tapered holes 123 on its inner wall circumferential surface in contact with the shaft wheel 22 of the dynamic bearing 2; each group contains multiple tapered holes 123, and these groups are uniformly spaced along the circumferential direction of the porous oil storage sleeve 12, and each tapered hole 123 in each group is also uniformly arranged along the circumference, ensuring that the lubricant covers no dead angle; each tapered hole 123 adopts a mechanical addition shape, the key feature of which is a funnel-shaped structure with a wide top and a narrow bottom, that is, the inlet aperture near the inner wall of the oil storage sleeve is larger, while the outlet aperture near the outer wall is smaller; this unique geometric design is based on the principle of fluid dynamics: when the non-Newtonian fluid lubricant output by the oil supplementing mechanism 3 is applied to the outer wall of the porous oil storage sleeve 12, the larger inlet facilitates rapid reception and temporary storage of the lubricant, reducing flow resistance; while the gradually narrowing outlet generates capillary effect and pressurization, on the one hand guiding the lubricant to seep out more concentratedly and stably, and on the other hand helping to maintain the pressure in the hole, preventing the hole wall from being blocked by external pressure or debris invasion, and ensuring the long-term patency of the pore; under the driving of pressure difference and capillary force, the lubricant flows smoothly along the inner wall of the tapered hole 123 and finally seeps out precisely and uniformly from the narrow outlet to the surface of the shaft wheel 22 of the dynamic bearing 2 and its oil storage hole 221, realizing continuous and sufficient wetting lubrication of the friction pair.

[0039] As a preferred embodiment, the core function of the auxiliary ring 4 is to provide stable rotational support and axial positioning for the oil supplementing mechanism 3; its main body is a rotating shaft 41, which is usually a high-precision cold-drawn light shaft, and its two ends are fixed to the end structure of the static bearing 1 through bearings or shaft sleeves, ensuring that its axis coincides with the bearing axis; on the outer circumferential surface of the rotating shaft 41, a certain distance from its two ends, two annular tightening rings 42 are respectively sleeved, which are preferably of split structure and made of hard aluminum alloy or steel, and their inner hole diameters are precisely matched with the outer diameter of the rotating shaft 41, allowing them to slide along the axial direction of the rotating shaft 41 and rotate around the shaft; one side of the two tightening rings 42 is provided with a lug with a through hole; at least one set of locking bolts 43 passes through the through holes of the two lugs and is locked with matching nuts; when the locking bolts 43 are tightened, the clamping force generated forces the semi-ring structure of the two tightening rings 42 to radially contract, thereby tightly holding and fixing the desired axial position of the rotating shaft 41; conversely, when the locking bolts 43 are loosened, the radial constraint of the tightening rings 42 is released, at which time they can be moved axially along the rotating shaft 41 to adjust their position, or rotated around the shaft for fine adjustment of the angle; this design allows flexible adjustment of the position and angle of the tightening rings 42 on the rotating shaft 41 according to the actual assembly of the oil supplementing mechanism 3 and the dynamic bearing 2 during installation or maintenance, ensuring the stability and concentricity of the connection at the bottom of the oil supplementing chamber 33, and thus ensuring the stability and low vibration of the entire oil supplementing mechanism 3 during rotation.

[0040] As a preferred embodiment, the oil supplement mechanism 3 is a core functional unit that realizes dynamic lubrication, and its structure comprises three main components: the oil supplement arm 31 is usually an elongated rigid rod, one end of which is directly or indirectly provided with an oil nozzle 6 and a scraper 7 for dispensing lubricating liquid, and the other end is fixedly connected to the oil supplement pipe 32 through welding or flange, which is preferably a flexible oil-resistant hose for reliable delivery of lubricating liquid; the other end of the oil supplement pipe 32 is connected to the outlet end of the oil supplement tank 33, which is usually designed as a sealed cylindrical or square container, the main body of which is a mixed oil tank 331 for storing and mixing non-Newtonian fluid lubricating materials; at the bottom center of the oil supplement tank 33, a downwardly extending rotating shaft 41 is fixedly installed, which has the same structure and model as the rotating shaft 41 of the auxiliary ring 4 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 supplement tank 33 and its connected oil supplement pipe 32 and oil supplement arm 31 can rotate with the rotating shaft 41 as the center under the stable support of the auxiliary ring 4 with low resistance; this rotating connection design is the key to ensuring the rotational synchronization of the oil supplement mechanism 3 and the dynamic bearing 2, so that the delivery of lubricant is real-time matched with the bearing movement state.

[0041] As a preferred embodiment, the oil supplement arm 31 is fixedly installed with an oil nozzle 6 at one end towards the outer wall of the porous oil storage bushing 12, which is usually a flat nozzle structure made of hard alloy, with its internal channel communicating with the oil supplement arm 31 or the oil supplement pipe 32, for directing the lubricating liquid from the oil supplement tank 33 to the outer wall surface of the porous oil storage bushing 12; on both sides of the oil nozzle 6 in the circumferential movement direction, each is provided with a scraper 7, which is preferably made of a material with elasticity and wear resistance, and its working edge is tightly fitted on the oil supplement arm 31 by screws or buckles, and ensures that its edge continuously fits on the outer wall of the porous oil storage bushing 12 with slight pre-pressure after assembly; when the oil supplement arm 31 rotates with the dynamic bearing 2, the two scrapers 7 are synchronously driven to make stable circumferential movement tightly against the bushing outer wall; the scraper 7 located in front of the rotating direction mainly plays a scraping role, and its 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 blocking the inlet of the lower conical hole 123.

[0042] As a preferred embodiment, the mixing oil tank 331 adopts a stainless steel cavity structure, which is filled with a lubricating liquid raw material such as a silicon-based non-Newtonian fluid material through the filling port 9, and realizes automatic mixing by using centrifugal force when the bearing rotates; the counter 332 selects a standard electronic counter model such as Omron E6C2-C, which is used to monitor the number of rotations or the lubrication period of the dynamic bearing 2 in real time, and triggers the oil supplement signal when the count value reaches the preset threshold; the battery socket 333 is configured as a 18650 lithium battery socket, which provides 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 liquid from the mixing oil tank 331 into the oil supplement arm 31 based on the count signal.

[0043] In combination with the bearing rotation power to promote the shear thickening characteristics of the non-Newtonian fluid material, the counter 332 intelligently monitors the lubrication demand, and the push assembly 334 ensures that the lubricating liquid is uniformly output to the multi-hole oil storage bushing 12, thereby improving the lubrication continuity, preventing hole blockage, and enhancing the wear resistance of the shaft wheel 22.

[0044] As a preferred embodiment, the connecting block 8 adopts a dovetail type sliding block forged from 45 steel, and the height of the connecting block 8 is half of the wall thickness of the oil storage bushing 12; the connecting groove 10 is a T-shaped groove corresponding to the groove opened on the outer wall of the shear shaft sleeve 21, and the groove depth is 1 / 4 of the shaft sleeve wall thickness. The connecting block 8 is vertically locked in the groove by an M6 internal hexagonal bolt. The wedge-shaped cooperation between the connecting block 8 and the connecting groove 10 realizes the transmission of rotational torque, while allowing a small amount of axial displacement to compensate for the difference in thermal expansion; it ensures that the scraper 7 is always in contact with the outer wall of the multi-hole oil storage bushing 12, continuously scraping off the impurities in the hole, avoiding the blockage of the conical hole 123, and eliminating the vibration of the oil supplement arm 31 through rigid connection, so that the oil outlet pressure of the oil nozzle 6 remains stable.

[0045] As a preferred embodiment, the mixing oil tank 331 adopts a 304 stainless steel integrally formed cavity, and the top filling port 9 is configured as a quick-release threaded interface, which forms a leak-proof structure with an aluminum alloy sealing cover 91 through a silicone sealing gasket; the lubricating liquid is selected to be a silicon-based non-Newtonian fluid, and the filling amount occupies 80% of the oil tank volume to reserve a shear space; when the dynamic bearing 2 drives the oil supplement bin 33 to rotate, referring to the linkage structure of claim 8, six groups of inclined baffles arranged in the oil tank apply continuous shear force to the fluid, and the shear thickening characteristics of the non-Newtonian fluid are used to uniformly disperse the suspended particles, thereby avoiding sedimentation and stratification.

[0046] As a preferred embodiment, the oil storage hole 221 of the outer wall of the shaft wheel 22 adopts a semi-spherical pit design, which is formed by a 8x8 array of hard alloy ball head milling cutters on a 45-degree inclined surface of the shaft wheel 22; after the non-Newtonian fluid lubricating liquid seeps out of the conical hole 123 of the porous oil storage bushing 12, the semi-spherical pit forms a local negative pressure area using rotational centrifugal force to actively absorb the lubricating liquid into the oil storage hole 221 for temporary storage, and at the same time when the shaft wheel 22 contacts the porous oil storage bushing 12, the sharp corner structure at the edge of the oil storage hole 221 applies shear force to the lubricating liquid to trigger the shear thickening effect of the non-Newtonian fluid, so that the viscosity of the lubricating liquid is temporarily increased to form a micron-level oil film; the technical effect realizes double lubrication protection, the oil storage hole 221 maintains a basic lubricating layer in a static state, and a high-pressure lubricating film is generated by shear thickening in a dynamic state, thereby reducing the sliding wear of the 45-degree shaft wheel 22 and the porous oil storage bushing 12.

[0047] The working process of the present application is as follows: when the dynamic bearing 2 rotates, the oil supplementing mechanism 3 is driven to rotate synchronously along the circumferential direction of the static bearing 1 through the rigid connection of the connecting block 8 and the connecting groove 10; the non-Newtonian fluid in the oil supplementing bin 33 produces a shear thickening effect under the action of centrifugal force, is pressurized by the push assembly 334, and is then delivered to the oil supplementing arm 31 through the oil supplementing pipe 32; the lubricating liquid is extruded from the oil nozzle 6 and seeps into the conical hole 123 of the porous oil storage bushing 12, and the scraper 7 continuously scrapes off impurities on the surface of the bushing during rotation to ensure that the oil passage is unobstructed; the lubricating liquid penetrates 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 sharp corner structure at the edge of the oil storage hole 221 applies shear force to the lubricating liquid, again triggering the viscosity of the non-Newtonian fluid to increase, and forming a dynamic high-pressure oil film on the contact surface; the above is the working principle of the bearing with stable lubrication performance.

Claims

1. A bearing with stable lubrication properties, comprising a static bearing (1) and a dynamic bearing (2), characterized in that: The static bearing (1) comprises an outer shell (11) and a porous oil storage bushing (12), one side of the porous oil storage bushing (12) is provided with a sealing ring (13), a tapered hole (123) is arranged on the outer wall of the porous oil storage bushing (12), the tapered hole (123) is provided in several groups, each group of the tapered hole (123) is uniformly arranged along the circumferential direction of the porous oil storage bushing (12), the tapered hole (123) is wide at the top and narrow at the bottom, one side of the sealing ring (13) is provided with an oil supplementing mechanism (3), the oil supplementing mechanism (3) comprises an oil supplementing arm (31), an oil supplementing pipe (32) and an oil supplementing bin (33), one side of the oil supplementing arm (31) is provided with the oil supplementing pipe (32), one side of the oil supplementing pipe (32) is provided with the oil supplementing bin (33), one side of the oil supplementing mechanism (3) is provided with an auxiliary ring (4), the oil supplementing bin (33) is connected with the auxiliary ring (4), the auxiliary ring (4) comprises a rotating shaft (41), a fastening ring (42) and a locking bolt (43), the outer wall of the rotating shaft (41) is provided with the fastening ring (42) on both sides, one side of the two groups of fastening rings (42) is fixed through the locking bolt (43), the fastening ring (42) can be rotated along the rotating shaft (41) by adjusting the locking bolt (43), one side of the oil supplementing arm (31) is provided with an oil nozzle (6), the oil nozzle (6) is provided with a scraper (7) on both sides, the scraper (7) is driven by the oil supplementing arm (31) to move circumferentially on the outer wall of the porous oil storage bushing (12), the inside of the porous oil storage bushing (12) is provided with a dynamic bearing (2), the dynamic bearing (2) comprises a shearing shaft sleeve (21), a shaft wheel (22) and a support frame (23), the outer wall of the shearing shaft sleeve (21) is provided with the shaft wheel (22), the shaft wheel (22) is provided in several groups, each group of the shaft wheel (22) is uniformly arranged along the circumferential direction of the shearing shaft sleeve (21), and each group of the shaft wheel (22) is arranged on the surface of the shearing shaft sleeve (21) at an angle of 45 degrees, the shearing shaft sleeve (21) is provided with the support frame (23) on both sides, the shearing shaft sleeve (21) is combined with the porous oil storage bushing (12) through the support frame (23), one side of the shearing shaft sleeve (21) is connected with the oil supplementing mechanism (3).

2. A bearing with stable lubricating properties according to claim 1, characterized in that: One side of the porous oil storage bushing (12) is provided with a protective rib (121), one side of the protective rib (121) is provided with a sliding rail (122), the inside of the sliding rail (122) is provided with a roller (5), the roller (5) is connected with the oil supplementing mechanism (3).

3. A bearing with stable lubricating properties according to claim 1, characterized in that: The oil supplementing bin (33) comprises a mixed oil tank (331), a counter (332), a battery seat (333) and a pushing assembly (334), one side of the mixed oil tank (331) is provided with the counter (332), one side of the counter (332) is provided with the battery seat (333), one side of the battery seat (333) is provided with the pushing assembly (334).

4. A bearing with stable lubricating properties according to claim 1, characterized in that: The bottom of the oil supplementing arm (31) is provided with a connecting block (8), one side of the connecting block (8) is provided with a connecting groove (10), the connecting groove (10) is fixed to one side of the outer wall of the shearing shaft sleeve (21), and the connecting block (8) is fixedly connected to the inside of the connecting groove (10).

5. A bearing with stable lubricating properties according to claim 3, characterized in that: The top of the mixed oil tank (331) is provided with a feeding opening (9), the inside of the mixed oil tank (331) is filled with non-Newtonian fluid material as lubricating liquid, one side of the feeding opening (9) is provided with a sealing cover (91), and the oil supplementing bin (33) and the dynamic bearing (2) allow the non-Newtonian fluid material to continuously mix when rotating along the static bearing (1).

6. A bearing with stable lubricating properties according to claim 1, characterized in that: The outer wall of the shaft wheel (22) is provided with oil storage holes (221), a plurality of groups of the oil storage holes (221) are arranged, and each group of the oil storage holes (221) is uniformly arranged along the circumferential direction of the outer wall of the shaft wheel (22).

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