A wear-resistant high-carbon chromium self-lubricating bearing

Abstract

The present invention discloses a wear-resistant high-carbon chromium self-lubricating bearing in the technical field of self-lubricating bearings, comprising a rotating shaft, a bearing inner ring and a bearing outer ring, wherein the bearing inner ring is fixedly mounted on the surface of the rotating shaft; during the long-term operation of the lubricating bearing of the present invention under a heavy pressure and a large vibration working environment, the self-lubricating bearing can be quickly disassembled and repaired by using a mounting ring and a fixing block, thereby reducing the difficulty of disassembling the self-lubricating bearing, being able to quickly observe the inside of the self-lubricating bearing, improving the repair efficiency, and facilitating the replacement of the lubricating paste inside the self-lubricating peripheral layer; and a shielding cover is used to shield the side of the self-lubricating bearing to prevent the shielding cover from rotating relative to the bearing outer ring during the rotation of the self-lubricating bearing, so that dust can enter the shielding cover from the gap, thereby easily entering between the bearing outer ring and the bearing inner ring to pollute the lubricating paste inside the self-lubricating bearing, thereby affecting the service life of the self-lubricating bearing.

Description

Technical Field

[0001] The invention relates to the technical field of self-lubricating bearings, in particular to a wear-resistant high-carbon chromium self-lubricating bearing. Background Art

[0002] Sliding bearings can be divided into two categories: general lubricated bearings and self-lubricating bearings according to whether they need to be continuously replenished with lubricating oil. Self-lubricating bearings refer to sliding bearings made of self-lubricating materials or with lubricants pre-added in the materials, which can work without lubricants or for a long time; the application areas of self-lubricating bearings are mainly under heavy load, low speed and harsh working conditions (such as extreme temperature, vacuum, high altitude, corrosiveness, etc., which cannot be refueled or are difficult to refuel). They are widely used in automobile, construction machinery, port machinery, plastic machinery, agricultural machinery and other industries.

[0003] When self-lubricating bearings work under heavy pressure, vibration and dusty environment (such as coal mines), self-lubricating bearings work under heavy pressure and vibration environment for a long time, which is easy to cause failure inside the self-lubricating bearings, resulting in the failure of normal lubrication inside the self-lubricating bearings. In addition, large vibrations can easily cause fine dust to enter the self-lubricating bearings and contaminate the lubricating grease inside the self-lubricating bearings, thereby reducing the lubricating effect and service life of the self-lubricating bearings. In addition, self-lubricating bearings are difficult to disassemble and it is difficult to quickly disassemble, inspect and replenish the lubricating grease. Summary of the invention

[0004] The object of the present invention is to provide a wear-resistant high-carbon chromium self-lubricating bearing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wear-resistant high-carbon chromium self-lubricating bearing, comprising a rotating shaft, a bearing inner ring and a bearing outer ring, wherein the bearing inner ring is fixedly mounted on the surface of the rotating shaft, the bearing inner ring is rotatably connected to the inside of the bearing outer ring, a plurality of storage grooves for storing lubricating grease are provided on the surface of the bearing inner ring, a shielding mechanism is provided on the surface of the bearing outer ring, the shielding mechanism is used to shield the self-lubricating bearing close to the construction position, the shielding mechanism is provided with a clamping mechanism, the clamping mechanism is used to limit and fix the shielding mechanism after installation, a maintenance mechanism is provided on the surface of the bearing outer ring, the maintenance mechanism is used to facilitate the disassembly of the self-lubricating bearing when the self-lubricating bearing is repaired, a limiting mechanism is provided between the maintenance mechanism and the shielding mechanism, the limiting mechanism is used to limit the maintenance mechanism after the shielding mechanism is installed, and a yielding mechanism is provided on the surface of the shielding mechanism, the yielding mechanism is used to yield the rotating shaft when the rotating shaft is long and needs to pass through the shielding mechanism.

[0006] As a further solution of the present invention, the shielding mechanism includes a shielding cover with one side closed, the shielding cover is sleeved on the surface of the outer ring of the bearing, and the inner wall side of the shielding cover is fixedly connected to a plurality of sliding blocks arranged at equal angles, and the surface of the outer ring of the bearing is provided with a plurality of first sliding grooves arranged at equal angles, and the sliding blocks slide in the first sliding grooves.

[0007] As a further solution of the present invention, the clamping mechanism includes a plurality of second slide grooves, and the plurality of second slide grooves are opened at equal angles on the surface of the shielding cover; an L-shaped clamping rod is elastically and slidably connected in the second slide groove, and the clamping rod extends to the outside of the shielding cover; the surfaces of the plurality of clamping rods are commonly fixedly connected to a fixing ring; a clamping groove is opened on the inner wall surface of the first slide groove, and the clamping rod extends into the clamping groove.

[0008] As a further solution of the present invention, the maintenance mechanism includes a mounting groove, which is opened on the inner side of the bearing outer ring, and a mounting ring is threadedly connected to the mounting groove. The inner wall surface of the mounting ring is tightly connected to the inner wall surface of the bearing outer ring, and the mounting ring is located close to the shielding cover. A plurality of fixing blocks are fixedly connected to the surface of the mounting ring close to the shielding cover.

[0009] As a further solution of the present invention, the limiting mechanism includes a plurality of limiting blocks, and the plurality of limiting blocks are fixedly connected to the surface of one side of the inner wall of the shielding cover close to the fixed block, and the plurality of limiting blocks are used to limit the fixed block.

[0010] As a further solution of the present invention, the yielding mechanism includes a through opening, which is opened on the surface of the shielding cover, and the inner wall surface of the through opening is provided with a plurality of third sliding grooves arranged at equal angles toward the inside of the side wall of the shielding cover, and a blocking plate is elastically slidably connected in the third sliding groove, and the surface of the blocking plate close to the rotating shaft is an inclined surface, and the side surfaces of the plurality of blocking plates are fitted together after being extended out.

[0011] As a further solution of the present invention, a flip plate is hinged on the surface of the blocking plate, and multiple flip plates flip to the side away from the rotating axis. Multiple telescopic plates are fixedly connected to the surface of the side wall of the opening. The telescopic plates are located at the position where two adjacent blocking plates contact each other, and the end of the telescopic plate away from the side wall of the opening is a concave arc.

[0012] As a further solution of the present invention, a plurality of balls are rotatably connected to the surface of the flip plate.

[0013] As a further solution of the present invention, a plurality of flip plate surfaces are commonly fixedly connected with an elastically retractable shrink ring.

[0014] As a further solution of the present invention, the thread on the surface of the mounting ring is a rectangular thread.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the lubricating bearing of the present invention works for a long time under a working environment with heavy pressure and large vibration, the mounting ring and the fixing block are used to enable the self-lubricating bearing to be quickly disassembled and repaired, thereby reducing the difficulty of disassembling the self-lubricating bearing, enabling the interior of the self-lubricating bearing to be quickly observed, improving the maintenance efficiency, and facilitating the replacement of the lubricating paste inside the self-lubricating peripheral layer. The shielding cover is used to shield the side of the self-lubricating bearing to prevent the shielding cover from rotating relative to the outer ring of the bearing during the rotation of the self-lubricating bearing, so that dust will enter the shielding cover from the gap, and then easily enter between the outer ring of the bearing and the inner ring of the bearing to contaminate the lubricating paste inside the self-lubricating bearing, thereby affecting the service life of the self-lubricating bearing.

[0017] 2. After the self-lubricating bearing and the rotating shaft are installed, when the shielding cover is put on the surface of the rotating shaft, the flip plate will flip to the side away from the self-lubricating bearing. The flipping of the flip plate will push the telescopic plate to extend and retract, and the blocking plate will move into the third slide groove. A gap will appear between adjacent blocking plates, and the telescopic plate can block the gap between adjacent blocking plates to ensure the normal operation of the self-lubricating bearing.

[0018] 3. In the present invention, when the rotating shaft passes through the through opening, the flip plate will flip to one side, and the ball will fit with the surface of the rotating shaft. Then, during the rotation of the rotating shaft, the ball will roll on the surface of the rotating shaft, which is beneficial to reduce the friction of the rotating shaft on the flip plate, avoiding the flip plate from being worn during long-term operation, thereby affecting the service life of the self-lubricating bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention after being cut apart;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0022] Figure 4 for Figure 2 Schematic diagram of the structure at B in the middle;

[0023] Figure 5 It is a schematic diagram of the exploded structure of the bearing inner ring, the bearing outer ring and the mounting ring in the present invention;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle;

[0025] Figure 7 It is a schematic diagram of the structure of the shielding cover in the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the bearing outer ring and the mounting ring after being cut apart in the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] Rotating shaft 1, bearing inner ring 2, bearing outer ring 3, storage groove 4, shielding cover 5, sliding block 6, first slide groove 7, second slide groove 8, clamping rod 9, fixing ring 10, clamping groove 11, mounting groove 12, mounting ring 13, fixing block 14, limiting block 15, through port 16, third slide groove 17, blocking plate 18, flip plate 19, telescopic plate 20, ball 21, shrink ring 22. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 8 The present invention provides a technical solution: a wear-resistant high-carbon chromium self-lubricating bearing, comprising a rotating shaft 1, a bearing inner ring 2 and a bearing outer ring 3, wherein the bearing inner ring 2 is fixedly mounted on the surface of the rotating shaft 1, and the bearing inner ring 2 is rotatably connected to the inside of the bearing outer ring 3, and a plurality of storage grooves 4 for storing lubricating grease are provided on the surface of the bearing inner ring 2, and a shielding mechanism is provided on the surface of the bearing outer ring 3, and the shielding mechanism is used to shield the self-lubricating bearing close to the construction position. The shielding mechanism is provided with a clamping mechanism, and the clamping mechanism is used to limit and fix the shielding mechanism after installation. A maintenance mechanism is provided on the surface of the bearing outer ring 3, and the maintenance mechanism is used to facilitate the disassembly of the self-lubricating bearing when the self-lubricating bearing is maintained. A limiting mechanism is provided between the maintenance mechanism and the shielding mechanism, and the limiting mechanism is used to limit the maintenance mechanism after the shielding mechanism is installed. A yielding mechanism is provided on the surface of the shielding mechanism, and the yielding mechanism is used to yield the rotating shaft 1 when the rotating shaft 1 is long and needs to pass through the shielding mechanism;

[0031] The shielding mechanism comprises a shielding cover 5 with one side closed, the shielding cover 5 is sleeved on the surface of the bearing outer ring 3, a plurality of sliding blocks 6 arranged at equal angles are fixedly connected to the inner wall side of the shielding cover 5, a plurality of first sliding grooves 7 arranged at equal angles are opened on the surface of the bearing outer ring 3, and the sliding blocks 6 slide in the first sliding grooves 7;

[0032] The clamping mechanism includes a plurality of second slide grooves 8, which are opened at equal angles on the surface of the shielding cover 5, and an L-shaped clamping rod 9 is elastically slidably connected in the second slide groove 8, and the clamping rod 9 extends to the outside of the shielding cover 5. The surfaces of the plurality of clamping rods 9 are commonly fixedly connected to a fixing ring 10, and a clamping groove 11 is opened on the inner wall surface of the first slide groove 7, and the clamping rod 9 extends into the clamping groove 11;

[0033] The maintenance mechanism includes a mounting groove 12, which is provided on the inner side of the bearing outer ring 3, and a mounting ring 13 is connected to the inner thread of the mounting groove 12, and the inner wall surface of the mounting ring 13 is closely connected to the inner wall surface of the bearing outer ring 3, and the mounting ring 13 is located on the side close to the shielding cover 5, and a plurality of fixing blocks 14 are fixedly connected to the surface of the mounting ring 13 close to the shielding cover 5;

[0034] The limiting mechanism includes a plurality of limiting blocks 15, and the plurality of limiting blocks 15 are fixedly connected to the inner wall of the shielding cover 5 near the surface of one side of the fixing block 14, and the plurality of limiting blocks 15 are used to limit the fixing block 14;

[0035] The yielding mechanism comprises a through opening 16, which is provided on the surface of the shielding cover 5, and a plurality of third slide grooves 17 arranged at equal angles are provided on the inner wall surface of the through opening 16 toward the inner side wall of the shielding cover 5, and a blocking plate 18 is elastically slidably connected in the third slide groove 17, and the surface of the blocking plate 18 close to the rotating shaft 1 is an inclined surface, and the side surfaces of the plurality of blocking plates 18 are mutually attached after being extended;

[0036] When the self-lubricating bearing works for a long time under a working environment with heavy pressure and large vibration, the inner ring 2 of the bearing will be installed on the surface of the rotating shaft 1. After the inner ring 2 of the bearing is installed, the fixing ring 10 needs to be rotated to rotate the clamping rod 9 until it is in a straight line with the sliding block 6, and then the clamping rod 9 and the sliding block 6 are pushed into the first slide groove 7 together. The sliding block 6 and the first slide groove 7 can limit the rotation of the shielding cover 5 to ensure that the shielding cover 5 can remain stable during the use of the self-lubricating bearing. The shielding cover 5 can shield the self-lubricating bearing close to the construction site to prevent the shielding cover 5 from rotating relative to the outer ring 3 of the bearing during the rotation of the self-lubricating bearing, and dust will enter from the gap. The visor 5 is inserted into the interior of the shielding cover 5, thereby easily entering between the bearing outer ring 3 and the bearing inner ring 2 to pollute the lubricating paste inside the self-lubricating bearing, thereby affecting the service life of the self-lubricating bearing. Subsequently, when the clamping rod 9 moves to the position of the clamping groove 11, the clamping rod 9 will move into the clamping groove 11 under the action of elastic force, and the clamping rod 9 and the clamping groove 11 will axially fix the shielding cover 5 to ensure that the shielding cover 5 and the bearing outer ring 3 can maintain a tight fit during the operation of the self-lubricating bearing, so that the shielding cover 5 can shield the end of the self-lubricating bearing to prevent dust from contacting the self-lubricating bearing. After the shielding cover 5 is installed, the limit blocks 15 will move with the shielding cover 5 to the two sides of the fixed block 14 to fix the fixed block 14 The limit block 15 and the sliding block 6 can keep the fixed block 14 and the bearing outer ring 3 relatively fixed together. The shielding cover 5 and the clamping rod 9 can prevent the fixed block 14 and the mounting ring 13 from moving to the outside of the bearing outer ring 3, which is beneficial to ensure that the mounting ring 13 and the bearing outer ring 3 are installed and fixed when the self-lubricating bearing is working, and avoid the mounting ring 13 and the bearing outer ring 3 from loosening during the operation of the self-lubricating bearing, thereby affecting the use of the self-lubricating bearing. When the self-lubricating bearing needs to be repaired after long-term use, it is necessary to first rotate the clamping rod 9 through the fixing ring 10 to rotate the clamping rod 9 to the first slide groove 7 position, and then move the shielding cover 5 outward, and the clamping rod 9 and the sliding block 6 will move from the first After the mounting ring 13 is screwed out of the mounting groove 12 by the fixing block 14, the bearing inner ring 2 can be smoothly taken out of the mounting groove 12, which is conducive to the rapid disassembly and maintenance of the self-lubricating bearing, reduces the difficulty of disassembly of the self-lubricating bearing, can quickly observe the inside of the self-lubricating bearing, improves the maintenance efficiency, and facilitates the replacement of the lubricating paste inside the self-lubricating peripheral layer. When the rotating shaft 1 is long, it is necessary to first push the blocking plate 18 on the inner side of the shielding cover 5 into the third slide groove 17, and then the shielding cover 5 is put on the surface of the rotating shaft 1 through the through hole 16 and installed on the bearing outer ring 3 to block dust, so that the shielding cover 5 can be suitable for different installation conditions of the rotating shaft 1 and the self-lubricating bearing.

[0037] After the rotating shaft 1 passes through the through opening 16, when the diameter of the rotating shaft 1 is smaller than the diameter of the through opening 16, a gap will be left between adjacent blocking plates 18. As a further solution of the present invention, a flip plate 19 is hinged on the surface of the blocking plate 18, and multiple flip plates 19 flip toward the side away from the rotating shaft 1. Multiple telescopic plates 20 are fixedly connected to the surface of the side wall of the through opening 16. The telescopic plates 20 are located at the position where two adjacent blocking plates 18 contact each other, and the end of the telescopic plate 20 away from the side wall of the through opening 16 is a concave arc.

[0038] After the self-lubricating bearing and the rotating shaft 1 are installed, when the shielding cover 5 is put on the surface of the rotating shaft 1, the flip plate 19 will flip to the side away from the self-lubricating bearing. The flipping of the flip plate 19 will push the telescopic plate 20 to extend and retract, and the blocking plate 18 will move toward the inside of the third slide groove 17. A gap will appear between adjacent blocking plates 18, and the telescopic plate 20 can block the gap between adjacent blocking plates 18 to ensure the normal operation of the self-lubricating bearing.

[0039] When the flip plate 19 contacts the rotating shaft 1, the rotating shaft 1 rotates relative to the flip plate 19 during operation. As a further solution of the present invention, a plurality of balls 21 are rotatably connected to the surface of the flip plate 19.

[0040] When the rotating shaft 1 passes through the through opening 16, the flip plate 19 will flip to one side, and the ball 21 will fit with the surface of the rotating shaft 1. Then, during the rotation of the rotating shaft 1, the ball 21 will roll on the surface of the rotating shaft 1, which is beneficial to reduce the friction of the rotating shaft 1 on the flip plate 19, avoiding the flip plate 19 from being worn during long-term operation, thereby affecting the service life of the self-lubricating bearing.

[0041] After the rotating shaft 1 passes through the through opening 16, dust still enters the gap between the flip plate 19 and the rotating shaft 1. As a further solution of the present invention, a plurality of flip plates 19 are fixedly connected to the surface of a resilient shrink ring 22;

[0042] When the rotating shaft 1 passes through the shielding cover 5 through the opening 16, the rotating shaft 1 will also pass through the shrink ring 22, which will block the gap between the flip plate 19 and the rotating shaft 1 to prevent dust from passing through the gap between the flip plate 19 and the rotating shaft 1 and affecting the self-lubricating bearing.

[0043] As a further solution of the present invention, the thread on the surface of the mounting ring 13 is a rectangular thread;

[0044] The surface of the mounting ring 13 uses rectangular threads to increase the tightness and tightness of the mounting ring 13 and the bearing outer ring 3 after installation, and can well prevent the mounting ring 13 from loosening due to working vibration.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant high-carbon chromium self-lubricating bearing, comprising a rotating shaft (1), a bearing inner ring (2) and a bearing outer ring (3), characterized in that: The inner ring (2) of the bearing is fixedly mounted on the surface of the rotating shaft (1), and the inner ring (2) of the bearing is rotatably connected to the inside of the outer ring (3) of the bearing. The surface of the inner ring (2) of the bearing is provided with a plurality of storage grooves (4) for storing lubricating grease. The surface of the outer ring (3) of the bearing is provided with a shielding mechanism, and the shielding mechanism is used to shield the self-lubricating bearing close to the construction position. The shielding mechanism is provided with a clamping mechanism, and the clamping mechanism is used to limit and fix the shielding mechanism after installation. The surface of the outer ring (3) of the bearing is provided with an inspection mechanism, and the inspection mechanism is used to facilitate the disassembly of the self-lubricating bearing when inspecting the self-lubricating bearing. A limiting mechanism is provided between the inspection mechanism and the shielding mechanism, and the limiting mechanism is used to limit the inspection mechanism after the shielding mechanism is installed. A yielding mechanism is provided on the surface of the shielding mechanism, and the yielding mechanism is used to yield the rotating shaft (1) when the rotating shaft (1) is long and needs to pass through the shielding mechanism. The shielding mechanism comprises a shielding cover (5) with one side closed, the shielding cover (5) being sleeved on the surface of the bearing outer ring (3), a plurality of sliding blocks (6) arranged at equal angles being fixedly connected to the inner wall side of the shielding cover (5), a plurality of first sliding grooves (7) arranged at equal angles being opened on the surface of the bearing outer ring (3), and the sliding blocks (6) sliding in the first sliding grooves (7); The clamping mechanism comprises a plurality of second slide grooves (8), the plurality of second slide grooves (8) being arranged at equal angles on the surface of the shielding cover (5), an L-shaped clamping rod (9) being elastically slidably connected in the second slide groove (8), the clamping rod (9) extending to the outside of the shielding cover (5), the surfaces of the plurality of clamping rods (9) being commonly fixedly connected to a fixing ring (10), a clamping groove (11) being arranged on the inner wall surface of the first slide groove (7), the clamping rod (9) extending into the clamping groove (11); The maintenance mechanism comprises a mounting groove (12), the mounting groove (12) being arranged on the inner side of the bearing outer ring (3), a mounting ring (13) being connected to the inner thread of the mounting groove (12), an inner wall surface of the mounting ring (13) being closely connected to the inner wall surface of the bearing outer ring (3), the mounting ring (13) being located on a side close to the shielding cover (5), and a plurality of fixing blocks (14) being fixedly connected to the surface of the mounting ring (13) on a side close to the shielding cover (5); The limiting mechanism comprises a plurality of limiting blocks (15), the plurality of limiting blocks (15) are all fixedly connected to a surface of a side of the inner wall of the shielding cover (5) close to the fixing block (14), and the plurality of limiting blocks (15) are used to limit the fixing block (14); The yielding mechanism comprises a through opening (16), wherein the through opening (16) is provided on the surface of the shielding cover (5), and a plurality of third sliding grooves (17) arranged at equal angles are provided on the inner wall surface of the through opening (16) toward the inside of the side wall of the shielding cover (5), and a blocking plate (18) is elastically slidably connected in the third sliding groove (17), and a surface of the blocking plate (18) on a side close to the rotating shaft (1) is an inclined surface, and the side surfaces of the plurality of blocking plates (18) are mutually abutted after being extended.

2. The wear-resistant high-carbon chromium self-lubricating bearing according to claim 1, characterized in that: A flip plate (19) is hingedly connected to the surface of the blocking plate (18), and a plurality of the flip plates (19) flip toward a side away from the rotating shaft (1). A plurality of telescopic plates (20) are fixedly connected to the surface of the side wall of the through opening (16), and the telescopic plates (20) are located at a position where two adjacent blocking plates (18) contact each other, and one end of the telescopic plate (20) away from the side wall of the through opening (16) is a concave arc.

3. The wear-resistant high-carbon chromium self-lubricating bearing according to claim 2, characterized in that: A plurality of balls (21) are rotatably connected to the surface of the flip plate (19).

4. The wear-resistant high-carbon chromium self-lubricating bearing according to claim 2, characterized in that: An elastically retractable shrink ring (22) is fixedly connected to the surfaces of the plurality of flip plates (19).

5. The wear-resistant high-carbon chromium self-lubricating bearing according to claim 1, characterized in that: The thread on the surface of the mounting ring (13) is a rectangular thread.

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