Shaft structure with self-lubricating function

Abstract

The utility model discloses a kind of shaft structures with self-lubricating function, it is related to shaft structure technical field, including outer ring and strengthening lubricating mechanism, the inner surface of outer ring is fixedly connected with strengthening lubricating mechanism, and strengthening lubricating mechanism includes resin-based adhesive coating fixedly connected in the inner position of outer ring, the inner surface of outer ring is equipped with spiral lubricating groove, and the outer surface of outer ring is fixedly connected with oil nozzle, the outer surface bottom of outer ring is fixedly connected with recovery valve, resin-based adhesive coating is fixed in the inner portion of outer ring.The shaft structure with self-lubricating function compared with the existing ordinary shaft structure, through oil storage, follow-up oil supply and recovery closed loop, guarantee lubrication continuous uniform, improve resource utilization, reduce component wear, adapt heavy load difficult maintenance scene, and with rigid support increase elastic buffer, resist impact load, avoid structure deformation, protect wear-resistant component and self-lubricating system, improve the reliability and durability of shaft structure under complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of shaft structure technology, specifically a shaft structure with self-lubricating function. Background Technology

[0002] Shaft structures are core components in mechanical devices that transmit power and support rotating parts. Through their own rotation, they transmit torque to components such as gears, impellers, and pulleys, while simultaneously bearing radial loads (forces perpendicular to the axis) and axial loads (forces parallel to the axis). They are crucial basic structures ensuring the continuous operation of equipment. Shaft structures can be classified by shape into plain shafts, stepped shafts, and hollow shafts, among which stepped shafts are the most widely used. Their different diameter sections allow for the precise installation of bearings, couplings, and transmission components, achieving positioning and sealing functions. Based on load-bearing type, they can be divided into drive shafts (transmitting only torque), spindles (bearing only load), and rotating shafts (transmitting both torque and load), adapting to different working conditions. However, existing shaft structures have certain shortcomings.

[0003] For example, a bearing structure with application number CN202222158075.5 relates to the field of bearing design and manufacturing technology, including a face cover, a base, a ball bearing assembly, ball screws, and a connecting component. A connecting shaft is located at the center of one side of the face cover, and a mounting hole is provided on the base. The ball screw is located in the mounting hole, and the top of the ball of the ball screw contacts the bottom surface of the face cover. The connecting component is located on the base, and the face cover and the base are connected by the connecting shaft and the connecting component and can rotate relative to each other. In use, the face cover and the base rotate relative to each other under the action of external force, and the ball screw provides an upward thrust, thereby avoiding radial runout between the face cover and the base, effectively reducing end face runout error. Bearings using this bearing structure do not require high manufacturing precision; they can be produced and manufactured with existing machining precision, and the yield rate of the manufactured bearings is significantly improved compared to the past. However, the lubrication method of this shaft structure is prone to oil loss, uneven distribution, and serious waste. In addition, the shaft structure has weak impact resistance, is easily deformed under impact, wear-resistant parts are easily damaged, and the self-lubricating system is easily affected.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings, and proposed a shaft structure with self-lubricating function. Utility Model Content

[0005] The purpose of this invention is to provide a shaft structure with self-lubricating function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shaft structure with self-lubricating function, including an outer ring and a reinforced lubrication mechanism. The reinforced lubrication mechanism is fixedly connected to the inner surface of the outer ring, and the reinforced lubrication mechanism includes a resin-based adhesive coating fixedly connected to the inner position of the outer ring. A spiral lubrication reservoir is formed on the inner surface of the outer ring, and an oil injection nozzle is fixedly connected to the outer surface of the outer ring. A recovery valve is fixedly connected to the bottom of the outer surface of the outer ring.

[0007] Preferably, a retainer is fixedly connected to the inner surface of the outer ring, and a rubber buffer block is fixedly connected to one side of the retainer.

[0008] Preferably, a reinforced anti-collision frame is fixedly connected to the outer surface of the retainer, and an anti-corrosion layer is fixedly connected to one side of the reinforced anti-collision frame.

[0009] Preferably, the inner surface of the cage is tactilely connected to a rolling element, and the outer surface of the rolling element is fixedly connected to a surface hardening layer.

[0010] Preferably, one side of the rolling element is tactilely connected to an inner ring, and the inner surface of the inner ring is fixedly connected to an anti-impact mechanism.

[0011] Preferably, the inner surface of the impact-resistant mechanism is fixedly connected to an inner metal frame, and the inner surface of the inner metal frame is fixedly connected to a rubber ring, with a wave-shaped elastic sleeve fixedly connected to one side of the rubber ring.

[0012] Preferably, an outer sealing ring is fixedly connected to one side of the outer ring, and an inner sealing ring is fixedly connected to the other side of the outer ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model comprehensively improves the performance of the shaft structure from the dimensions of lubrication continuity, resource utilization and component protection by strengthening the lubrication mechanism. It is the core guarantee for realizing the self-lubricating function. The resin-based viscous coating prevents oil from splashing and losing during high-speed operation, ensuring that a stable oil film is always attached to the friction surface. The spiral lubrication storage grooves on the inner surface of the outer ring are spirally distributed. They can not only store the excess lubricating oil injected by the oil nozzle, but also use the centrifugal force of the shaft to evenly guide the oil along the spiral trajectory to each friction contact point, realizing follow-up oil supply. This solves the problem of uneven oil distribution in traditional lubrication methods. At the same time, the recovery valve avoids oil waste and environmental pollution, providing strong support for the long-term stable operation of the shaft structure in heavy-load and difficult-to-maintain scenarios such as metallurgy and wind power.

[0015] 2. This utility model constructs an impact-resistant protective barrier by setting an impact-resistant mechanism, while ensuring the stable operation of the self-lubricating system, significantly improving the reliability and durability of the shaft structure under complex working conditions. The inner metal skeleton is made of high-strength alloy in one piece, which can effectively resist axial and radial impact loads, avoid deformation of the mechanism caused by impact, reduce instantaneous pressure overload between the rolling elements and the inner and outer ring friction surfaces caused by impact, avoid cracks or peeling of the surface hardened layer, and extend the service life of wear-resistant parts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the enhanced lubrication mechanism 2 of this utility model;

[0018] Figure 3 This is a schematic diagram of the impact mechanism 10 of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] In the diagram: 1. Outer ring; 2. Reinforced lubrication mechanism; 201. Resin-based viscous coating; 202. Spiral lubrication reservoir; 203. Oil nozzle; 204. Recovery valve; 3. Cage; 4. Rubber buffer block; 5. Reinforced anti-collision frame; 6. Anti-corrosion layer; 7. Rolling element; 8. Surface hardening layer; 9. Inner ring; 10. Impact-resistant mechanism; 1001. Inner metal skeleton; 1002. Rubber ring; 1003. Wave-shaped elastic sleeve; 11. Outer sealing ring; 12. Inner sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4As shown, a shaft structure with self-lubricating function includes an outer ring 1 and a reinforced lubrication mechanism 2. The reinforced lubrication mechanism 2 is fixedly connected to the inner surface of the outer ring 1, and the reinforced lubrication mechanism 2 includes a resin-based adhesive coating 201 fixedly connected to the inside of the outer ring 1. A spiral lubrication reservoir 202 is formed on the inner surface of the outer ring 1, and an oil injection nozzle 203 is fixedly connected to the outer surface of the outer ring 1. A recovery valve 204 is fixedly connected to the bottom of the outer surface of the outer ring 1. The resin-based adhesive coating 201 is fixed inside the outer ring 1 and can absorb and retain lubricating oil, reducing oil loss. The spiral lubrication reservoir 202 on the inner surface of the outer ring 1 can store the lubricating oil injected by the oil injection nozzle 203. As the components operate, the oil is evenly guided to the friction surface. The recovery valve 204 at the bottom of the outer ring 1 can recover excess or aged lubricating oil, realizing recycling and forming a continuous and uniform lubrication system, reducing friction loss, avoiding lubricating oil waste, and extending the service life of the outer ring 1 and its mating components.

[0023] like Figure 2 As shown, a cage 3 is fixedly connected to the inner surface of the outer ring 1, and a rubber buffer block 4 is fixedly connected to one side of the cage 3. A reinforced anti-collision frame 5 is fixedly connected to the outer surface of the cage 3, and an anti-corrosion layer 6 is fixedly connected to one side of the reinforced anti-collision frame 5. The rubber buffer block 4 on one side of the cage 3 can absorb the impact between the rolling element 7 and the cage 3, reducing vibration and noise. The reinforced anti-collision frame 5 on the outer surface of the cage 3 improves the overall structural strength and resists deformation caused by external impact. The anti-corrosion layer 6 on one side can isolate moisture and corrosive media, prevent the cage 3 and the reinforced anti-collision frame 5 from rusting, and ensure the overall operating accuracy and service life of the shaft structure.

[0024] Furthermore, an inner ring 9 is rolledly connected to one side of the rolling element 7, and an impact-resistant mechanism 10 is fixedly connected to the inner surface of the inner ring 9. An inner metal skeleton 1001 is fixedly connected to the inner surface of the impact-resistant mechanism 10, and a rubber ring 1002 is fixedly connected to the inner surface of the inner metal skeleton 1001. A wave-shaped elastic sleeve 1003 is fixedly connected to one side of the rubber ring 1002. The inner metal skeleton 1001 provides core support, maintains the stability of the mechanism structure, and avoids deformation under impact. The rubber ring 1002 absorbs radial impact energy through elastic deformation, and, in conjunction with the multi-peak structure of the wave-shaped elastic sleeve 1003, provides secondary force relief, weakens vibration transmission, protects the fitting accuracy between the shaft and the inner ring 9, and extends the service life of the shaft structure under complex working conditions.

[0025] Furthermore, an outer sealing ring 11 is fixedly connected to one side of the outer ring 1, and an inner sealing ring 12 is fixedly connected to the other side of the outer ring 1. A rolling element 7 is rolledly connected to the inner surface of the cage 3, and a surface hardening layer 8 is fixedly connected to the outer surface of the rolling element 7. The outer sealing rings 11 and the inner sealing rings 12 on both sides of the outer ring 1 form a double sealing protection, which tightly fits the gap between the components, effectively preventing dust, moisture and other impurities from entering the interior, while preventing lubricating oil leakage and maintaining a stable internal lubrication environment. The inner surface of the cage 3 and the rolling element 7 roll in cooperation, accurately guiding the rolling element 7 to be evenly distributed, avoiding mutual collision and friction during operation. The surface hardening layer 8 on the outer surface of the rolling element 7 greatly improves hardness and wear resistance, reducing wear during the rolling process.

[0026] Working principle: When using this self-lubricating shaft structure, the outer ring 1 serves as the basic component. When the shaft rotates, the rolling element 7 rolls between the outer ring 1 and the inner ring 9. The surface hardening layer 8 on the outer surface reduces wear. The spiral lubrication reservoir 202 guides the oil evenly to the contact surfaces of the rolling element 7 with the outer ring 1 and the inner ring 9 as the shaft rotates. The oil injection nozzle 203 injects oil into the spiral lubrication reservoir (202), so that the surface of the resin-based viscous coating 201 is continuously supplied with oil. In the impact-resistant mechanism 10 on the inner surface of the inner ring 9, the inner metal skeleton 1001 provides support, and the rubber ring 1002 and the wave elastic sleeve 1003 absorb shock. The cage 3 supports the rolling element 7 based on the outer ring 1. The outer surface of the cage is reinforced with a shock-absorbing frame 5 to enhance structural rigidity. A rubber buffer block 4 on one side buffers the impact of the rolling element 7. The anti-corrosion layer 6 isolates the cage 3 from corrosive media. Then, the outer sealing ring 11 and the inner sealing ring 12 prevent oil leakage and impurity intrusion. Excess oil is recovered through the recovery valve 204. Finally, after the operation stops, the enhanced lubrication mechanism 2 retains the oil, the sealing ring maintains the sealing state, the impact-resistant mechanism 10 keeps the inner ring 9 stable, and the anti-corrosion layer 6 continues to play a protective role. This is the working principle of the shaft structure with self-lubricating function.

Claims

1. A shaft structure with self-lubricating function, comprising an outer ring (1) and a reinforced lubrication mechanism (2), characterized in that, The inner surface of the outer ring (1) is fixedly connected to a lubrication enhancement mechanism (2), and the lubrication enhancement mechanism (2) includes a resin-based adhesive coating (201) fixedly connected to the inner position of the outer ring (1). The inner surface of the outer ring (1) is provided with a spiral lubrication reservoir (202), and the outer surface of the outer ring (1) is fixedly connected to an oil injection nozzle (203). The bottom of the outer surface of the outer ring (1) is fixedly connected to a recovery valve (204).

2. The shaft structure with self-lubricating function according to claim 1, characterized in that, The inner surface of the outer ring (1) is fixedly connected to a retainer (3), and a rubber buffer block (4) is fixedly connected to one side of the retainer (3).

3. A shaft structure with self-lubricating function according to claim 2, characterized in that, The outer surface of the retainer (3) is fixedly connected to a reinforced anti-collision frame (5), and one side of the reinforced anti-collision frame (5) is fixedly connected to an anti-corrosion layer (6).

4. A shaft structure with self-lubricating function according to claim 2, characterized in that, The inner surface of the cage (3) is rolled with a rolling element (7), and the outer surface of the rolling element (7) is fixedly connected with a surface hardening layer (8).

5. A shaft structure with self-lubricating function according to claim 4, characterized in that, One side of the rolling element (7) is connected to an inner ring (9), and an anti-impact mechanism (10) is fixedly connected to the inner surface of the inner ring (9).

6. A shaft structure with self-lubricating function according to claim 5, characterized in that, The inner surface of the impact-resistant mechanism (10) is fixedly connected to an inner metal frame (1001), and the inner surface of the inner metal frame (1001) is fixedly connected to a rubber ring (1002). A wave-shaped elastic sleeve (1003) is fixedly connected to one side of the rubber ring (1002).

7. A shaft structure with self-lubricating function according to claim 1, characterized in that, An outer sealing ring (11) is fixedly connected to one side of the outer ring (1), and an inner sealing ring (12) is fixedly connected to the other side of the outer ring (1).

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