Self-lubricating rolling bearing

Abstract

The utility model discloses a self-lubricating rolling bearing, which relates to the technical field of bearings and comprises a bearing seat, a static ring is fixedly connected to the middle of the inner side of the bearing seat, a roller groove is formed in the middle of the inner side of the static ring, a movable ring is arranged on the inner side of the static ring, and a plurality of cylindrical rollers are arranged between the movable ring and the static ring. The cylindrical rollers are circumferentially arranged in the roller grooves, protection rings are arranged at the positions, on the left side and the right side of the static ring, in the bearing seat, an oil storage cavity for storing lubricating oil is formed between the protection rings and the static ring, and the left end and the right end of the outer side of the movable ring are fixedly connected with oil baffle rings. Lubricating oil is injected into the oil storage cavity through the oil injection hole, then sealing is conducted through the second sealing nut, it can be guaranteed that the lubricating oil participates in the rotating process all the time when the cylindrical roller and the movable ring rotate, then the self-lubricating effect is achieved, extra lubricating operation is reduced, the manual maintenance frequency is reduced, and the labor cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely relates to a self -lubricating rolling bearing. BACKGROUND

[0002] Bearing is the component that is fixed and reduces the load friction coefficient in the mechanical transmission process. It can also be said that when other machine parts produce relative motion on the shaft, it is used to reduce the friction coefficient and keep the shaft center position fixed. Bearing is a kind of important part in contemporary mechanical equipment. Its main function is to support mechanical rotating body and reduce the mechanical load friction coefficient in the transmission process.

[0003] In order to improve the service life of bearing, and ensure the rotating effect of bearing, generally need to disassemble bearing and smear lubricating grease between roller and rotor to carry out lubrication, disassemble bearing to carry out lubrication and need to spend more time and manpower, this process not only increases the equipment maintenance time, also needs professional technical personnel to operate, leads to the rise of maintenance cost, in some production environment, it can cause production line to stop working, influence production efficiency, and further bring economic loss, in view of the above problem, present a kind of self -lubricating rolling bearing to solve. UTILITARIAN CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of self -lubricating rolling bearing, solve the above current in order to improve the service life of bearing, and ensure the rotating effect of bearing, generally need to disassemble bearing and smear lubricating grease between roller and rotor to carry out lubrication, disassemble bearing to carry out lubrication and need to spend more time and manpower, this process not only increases the equipment maintenance time, also needs professional technical personnel to operate, leads to the rise of maintenance cost, in some production environment, it can cause production line to stop working, influence production efficiency, and further bring economic loss Problem.

[0005] To achieve the above purpose, the utility model adopts the technical scheme as follows: a kind of self -lubricating rolling bearing, including bearing seat, the static ring is fixedly connected in the inside middle part of bearing seat, the static ring inside middle part is equipped with roller groove, the dynamic ring is arranged in the inside of static ring, a plurality of cylindrical rollers are arranged between the dynamic ring and static ring, the cylindrical roller is arranged in the inside roller groove in circle, the protective ring is arranged in the inside of static ring left and right sides of bearing seat, the protective ring and static ring form a oil storage chamber that stores lubricating oil, the dynamic ring outside left and right ends are fixedly connected with oil baffle ring.

[0006] Preferably, the two oil baffle rings are provided with arc-shaped sealing slots on the outside, the sealing blocks are fixedly connected to the inside of the protective ring, the sealing blocks extend to the inside of the sealing slots at the ends, and the sealing blocks are rotatably connected with the sealing slots.

[0007] Preferably, at least eight mounting holes are arranged on the outer side of the two protective rings, and the eight mounting holes are arranged in a circle around the center of the protective ring, and a locking bolt is arranged inside each of the eight mounting holes to fix the protective ring to the bearing seat.

[0008] Preferably, two oil discharge holes are arranged on the lower side of the two protective rings at the position of the oil storage chamber, and a first sealing nut is threadedly connected to the inside of each of the two oil discharge holes.

[0009] Preferably, an oil injection hole is arranged in the middle of the top of the bearing seat and the static ring, and a second sealing nut is threadedly connected to the inside of the oil injection hole.

[0010] Preferably, mounting plates are fixedly connected to the outer ends of the front and rear sides of the bearing seat, and bolt holes are arranged on the surface of each of the two mounting plates.

[0011] Preferably, a friction-reducing coating is arranged on the outer surface of the cylindrical roller, the friction-reducing coating is a molybdenum disulfide coating, and the thickness of the friction-reducing coating is 0.01-0.05 mm.

[0012] Preferably, a plurality of uniformly distributed oil grooves are arranged on the side of the movable ring close to the static ring, and the oil grooves are arranged in a spiral shape along the circumferential direction of the movable ring.

[0013] Compared with the prior art, the utility model has the advantages that the utility model discloses an oil injection hole is arranged to inject lubricating oil into the oil storage chamber, and then the second sealing nut is used for sealing, so that the cylindrical roller and the movable ring can always ensure that lubricating oil participates in the rotating process when rotating, thereby achieving the self-lubricating effect, reducing additional lubricating operation, reducing the frequency of manual maintenance, saving labor cost, and continuously supplying lubricating oil to reduce the friction coefficient of the cylindrical roller and the movable ring during operation, thereby effectively reducing the overheating or jamming phenomenon caused by oil shortage, ensuring the stable operation of the equipment by the action of the lubricating oil, avoiding the failure or shutdown caused by insufficient lubrication, and the lubricating oil can be replaced without disassembling the bearing, thereby reducing the equipment maintenance time. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is Figure 2 It is a sectional view of A-A;

[0017] Figure 4 It is Figure 3A local enlarged view at P.

[0018] Reference signs in the figures are:

[0019] 1, bearing seat; 2, mounting plate; 3, static ring; 4, roller groove; 5, dynamic ring; 6, oil retaining ring; 7, sealing insertion slot; 8, cylindrical roller; 9, protective ring; 10, mounting hole; 11, oil storage chamber; 12, locking bolt; 13, oil discharge hole; 14, first sealing nut; 15, oil injection hole; 16, second sealing nut; 17, sealing insertion block. DETAILED DESCRIPTION

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0021] Referring to Figures 1-4 As shown in the figure, a self-lubricating rolling bearing comprises a bearing seat 1, a static ring 3 is fixedly connected to the middle part of the inner side of the bearing seat 1, a roller groove 4 is formed in the middle part of the inner side of the static ring 3, a dynamic ring 5 is arranged on the inner side of the static ring 3, a plurality of cylindrical rollers 8 are arranged between the dynamic ring 5 and the static ring 3, the cylindrical rollers 8 are arranged in a circle inside the roller groove 4, a protective ring 9 is arranged on both sides of the static ring 3 inside the bearing seat 1, an oil storage chamber 11 for storing lubricating oil is formed between the protective ring 9 and the static ring 3, and an oil retaining ring 6 is fixedly connected to the outer side of both ends of the dynamic ring 5.

[0022] Specifically, an arc-shaped sealing insertion slot 7 is formed in the outer side of each of the two oil retaining rings 6, a sealing insertion block 17 is fixedly connected to the inner side of the protective ring 9, the sealing insertion block 17 extends to the inside of the sealing insertion slot 7 at the end, and the sealing insertion block 17 is rotatably connected with the sealing insertion slot 7, the sealing insertion slot 7 and the sealing insertion block 17 cooperate with each other to form an effective sealing barrier, which further enhances the sealing performance of the bearing, prevents the leakage of lubricating oil and the intrusion of external impurities, and improves the reliability and service life of the bearing.

[0023] Specifically, at least eight mounting holes 10 are formed through the outer sides of the two protective rings 9, the eight mounting holes 10 are arranged in a circle with the center of the protective ring 9, and a locking bolt 12 for fixing the protective ring 9 with the bearing seat 1 is arranged in each of the eight mounting holes 10. The design of the mounting hole 10 and the locking bolt 12 enables the protective ring 9 to be firmly fixed on the bearing seat 1, thereby ensuring the overall stability and reliability of the bearing.

[0024] Specifically, two protective rings 9 are provided with oil discharge holes 13 at the position of the oil storage chamber 11, and the first sealing nut 14 is screwed in the oil discharge hole 13.

[0025] Specifically, the bearing seat 1 and the top of the static ring 3 are provided with an oil injection hole 15 at the middle position, and the second sealing nut 16 is screwed in the oil injection hole 15.

[0026] Specifically, the bearing seat 1 is fixedly connected with the mounting plate 2 on both sides, and the mounting plate 2 is provided with bolt holes on the surface.

[0027] Specifically, the cylindrical roller 8 is provided with a friction-reducing coating on the outer surface, the friction-reducing coating is a molybdenum disulfide coating, and the thickness of the friction-reducing coating is 0.01-0.05mm.

[0028] Specifically, the dynamic ring 5 is provided with a plurality of uniformly distributed oil grooves on the side close to the static ring 3, and the oil grooves are distributed in a spiral shape along the circumferential direction of the dynamic ring 5.

[0029] Working principle: through the bolt hole of the installation plate 2 surface, the bearing seat 1 is installed on the corresponding rack by using bolt, and the protective ring 9 is stably fixed in the bearing seat 1 by using the mounting hole 10 on the protective ring 9 and the locking bolt 12, so that the whole bearing maintains a stable state during work, the second sealing nut 16 is unscrewed by using screwdriver, and the oil storage chamber 11 is injected with appropriate amount of lubricating oil through the oil injection hole 15, and the second sealing nut 16 is screwed after the oil injection is completed to seal, the oil supply for the self-lubrication of the bearing is provided, when the movable ring 5 rotates in the inside of the static ring 3, the cylindrical roller 8 rolls in the roller groove 4. The lubricating oil in the oil storage chamber 11 will gradually penetrate to the contact part of the cylindrical roller 8, the movable ring 5 and the static ring 3, and play a lubricating role. The oil groove spirally distributed on the movable ring 5 can guide the lubricating oil to be uniformly distributed on the surface of the movable ring 5, further improve the lubricating effect, reduce the friction and wear, the sealing slot 7 on the oil baffle 6 cooperates with the sealing block 17 of the protective ring 9, and when the movable ring 5 rotates, the lubricating oil is prevented from leaking, and at the same time, foreign matters in the outside are prevented from entering the inside of the bearing, and a good working environment in the inside of the bearing is maintained, when it is necessary to replace the lubricating oil, the first sealing nut 14 is unscrewed by using screwdriver, and the waste lubricating oil in the oil storage chamber 11 will flow out through the oil discharge hole 13, if the oil is viscous, gas can be injected from the oil injection hole 15, and the oil is extruded by using gas pressure, and then new lubricating oil is injected again, and the maintenance work is completed.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating rolling bearing, characterized in that: Including the bearing seat (1), the static ring (3) is fixedly connected to the inside middle part of the bearing seat (1), the static ring (3) is provided with the dynamic ring (5) in the inside, the dynamic ring (5) is provided with a plurality of cylindrical rollers (8) between the static ring (3), the cylindrical roller (8) is arranged in the inside of the roller groove (4) in a circle, the bearing seat (1) is provided with the protection ring (9) on the left and right sides of the static ring (3) inside, the protection ring (9) and the static ring (3) form an oil storage chamber (11) for storing lubricating oil, the dynamic ring (5) is fixedly connected with the oil baffle ring (6) on the left and right ends of the outside.

2. A self-lubricating rolling bearing according to claim 1, characterized in that: The outer side of the two oil baffle rings (6) is provided with an arc-shaped sealing slot (7), the inner side of the protection ring (9) is fixedly connected with a sealing plug (17), the sealing plug (17) extends to the inside of the sealing slot (7), and the sealing plug (17) is rotatably connected with the sealing slot (7).

3. A self-lubricating rolling bearing according to claim 1, characterized in that: The outer side of the two protection rings (9) is provided with at least eight mounting holes (10), the eight mounting holes (10) are arranged in a circle with the center of the protection ring (9), and the eight mounting holes (10) are provided with locking bolts (12) for fixing the protection ring (9) and the bearing seat (1) inside.

4. A self-lubricating rolling bearing according to claim 1, characterized in that: The lower side of the two protection rings (9) is provided with an oil discharge hole (13) at the position of the oil storage chamber (11), and the first sealing nut (14) is screwed in the two oil discharge holes (13).

5. A self-lubricating rolling bearing according to claim 1, characterized in that: The top middle position of the bearing seat (1) and the static ring (3) is provided with an oil injection hole (15), and the second sealing nut (16) is screwed in the oil injection hole (15).

6. A self-lubricating rolling bearing according to claim 1, characterized in that: The outer end of the front and rear sides of the bearing seat (1) is fixedly connected with the mounting plate (2), and the bolt hole is provided through the surface of the two mounting plates (2).

7. A self-lubricating rolling bearing according to claim 1, characterized in that: The outer surface of the cylindrical roller (8) is provided with a friction-reducing coating, the friction-reducing coating is a molybdenum disulfide coating, and the thickness of the friction-reducing coating is 0.01-0.05mm.

8. A self-lubricating rolling bearing according to claim 1, characterized in that: The side of the dynamic ring (5) close to the static ring (3) is provided with a plurality of uniformly distributed oil grooves, and the oil grooves are distributed in a spiral shape along the circumferential direction of the dynamic ring (5).

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