A rationally structured rod end high-speed drive bearing device

Abstract

The present invention relates to a rod-end high-speed drive bearing device with a reasonable structure, which mainly includes an intermediate stator component, a peripheral rotating component, a lubricating bearing component, a front-end power input component and a rear-end kinetic energy output drive component, and a buffer and leakage prevention component arranged between the fixed component and the rotating component. By applying the principle of aerodynamics, an efficient excretion channel is reasonably set for the external dust or dirt that is inevitably sucked into the junction of the fixed component and the rotating component during operation, which effectively overcomes the problem in the prior art that the sucked-in dust or dirt is squeezed in and then retained above the oil tank under high pressure, causing damage to the oil seal and squeezing into the oil tank, affecting the normal operation of the ball bearing, thereby affecting the working stability and normal working life of the bearing device, and requiring frequent shutdowns for maintenance, affecting the construction progress and work efficiency, and increasing the maintenance workload and daily use costs. The structure is reasonable and scientific, the operation is reliable and stable, and it has strong practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission components, in particular to a rod end high-speed drive bearing device with a reasonable structure. Background Art

[0002] Bearings are a crucial component in modern machinery. Their primary function is to support rotating bodies, reduce friction during movement, and ensure rotational accuracy and balanced operation. They also serve as a functional component that reduces load friction during mechanical transmission. High load capacity, impact resistance, and a long, reliable service life are essential requirements. Mechanical bearings are categorized into rolling bearings and plain bearings based on the friction between moving elements. They are widely used in machinery, equipment, and instrumentation. In heavy machinery, plain bearings are commonly combined with other mechanical components to create a suitable bearing assembly that provides fixed position control and environmental protection. When installed at either end of a rod, they not only support and limit the rod end, but also ensure smooth, low-resistance operation. They are widely used in heavy machinery such as drilling, mining, water conservancy, and environmental pollution treatment, where concentricity requirements are not as high, operating environments are complex, and surface pressures are high, yet slow-motion oscillating or rotating motion is required. This type of bearing, collectively referred to in the industry as a rod end joint bearing assembly, or simply a rod end bearing assembly, is installed in pairs at both ends of a rod body during use, and has either a primary drive function or a driven slave function, resulting in slightly different structures. The bearing assembly installed at one end of the rod body and driven by external kinetic energy is called a rod end drive bearing assembly, while the bearing assembly installed at the other end of the rod body and supported by the rotation of the rod body is called a rod end high-speed drive bearing assembly. Drive bearing assemblies are further divided into high-speed drive bearing assemblies and low-speed drive bearing assemblies based on their speed characteristics. Their common task is to coordinate operation, jointly supporting and driving the rod body in a stable operating state at a limited speed.

[0003] The present invention relates to an innovative design product developed to overcome the shortcomings of existing conventional rod-end high-speed drive bearing devices. Conventional rod-end high-speed drive bearing devices generally include an intermediate stator assembly, a peripheral rotating assembly, a lubricating bearing assembly, a front-end power input drive member assembled and connected to the peripheral rotating assembly, and a rear-end kinetic energy output drive member. While initially operating well, these devices have gradually become less stable over time, with a short lifespan. They frequently experience uneven rotational speeds or even stalling, requiring frequent downtime for repairs. During repairs, these repairs are often caused by foreign matter being squeezed into the lubricating oil ring groove. Sometimes, contaminants are even found to solidify within the groove, rendering the ball bearing inoperable. This seriously impacts the smooth operation of the rod body, thereby affecting operational progress, construction efficiency, quality, and cost. Therefore, existing rod-end high-speed drive bearings generally suffer from numerous deficiencies, including a less-than-scientific and rational structure, less-than-ideal practical performance, heavy maintenance workload, and high construction costs. From both an economic and practical perspective, these devices are less than ideal. It is necessary to start from the rationalization and scientificity of the structure and make innovative improvements to make it meet the special requirements of high-load, high-efficiency and low-cost construction of heavy mechanized operating equipment in complex environments. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing rod end high-speed drive bearing device, and provide a new rod end high-speed drive bearing device with a relatively scientific and reasonable structure, strong anti-pollution and anti-interference capabilities, which is conducive to reducing the workload of daily maintenance, improving working stability and ensuring normal service life, and can meet the requirements of efficient and low-cost continuous operation of applicable equipment in complex environments.

[0005] The present invention provides a rationally structured rod-end high-speed drive bearing device, characterized in that the main body includes an intermediate stator assembly, a peripheral rotating assembly, a lubricating bearing assembly, a front-end power input component, a tail-end kinetic energy output drive component, and a buffering and draining component. The peripheral rotating assembly is movably sleeved on the periphery of the intermediate stator assembly, the lubricating bearing assembly is arranged between the intermediate stator assembly and the peripheral rotating assembly, the front-end power input component is transversely fixed on the outer ring surface of the front inwardly contracted trapezoidal assembly end of the peripheral rotating assembly, the tail-end kinetic energy output drive component is vertically fixed on the tail end center position of the peripheral rotating assembly, and the buffering and draining component is arranged at the junction between the intermediate stator assembly and the peripheral rotating assembly, wherein:

[0006] The intermediate stator assembly mainly includes a stator shaft, a fixed sleeve and a positioning plate. The main body of the fixed sleeve is cylindrical and is arranged on the periphery of the stator shaft. A limiting groove with a plurality of holes for receiving compression springs with pins is provided on the rear end surface thereof. A plurality of bolt limiting mounting holes A for assembling and interconnecting the positioning plates are transversely provided on the front end wall thereof. The middle outer ring surface of the cylinder serves as the limiting setting surface of the inner ring groove ring of the bearing oil groove. The main body of the positioning plate is L-shaped and is sleeved on the front end outer surface of the fixed sleeve. A plurality of L-shaped oil injection channels are provided inside as needed. A plurality of bolt assembly limiting holes A are fixed on the ring close to the fixed sleeve, which are staggered with the L-shaped oil injection channels and assembled correspondingly with the bolt limiting mounting holes A.

[0007] The peripheral rotating assembly mainly includes a rotating shell and a rotating disk. The rotating shell main body is cylindrical with the retracted trapezoidal assembly end fixedly provided at the front end, and an inner concave sprocket mounting seat is fixedly provided on the outer annular surface of the retracted trapezoidal assembly end. A plurality of convex limiting pillars with bolt limiting mounting holes B are fixedly provided on the rear end annular surface of the cylinder at required intervals, and the middle inner annular surface of the cylinder serves as the limiting setting surface of the outer groove ring of the bearing oil groove; the rotating disk main body is annular in shape consistent with the rotating shell cover, and a plurality of bolt assembly limiting holes B corresponding to the bolt limiting mounting holes B on the convex limiting pillars are fixedly provided on the outer edge surface of the disk, a limiting convex card is fixedly provided on the inner annular surface close to the inner side, and a limiting groove and a plurality of convex main drive limiting pins are fixedly provided on the outer end surface;

[0008] The lubricating bearing assembly mainly includes a pair of inner ring grooves respectively fixed on the outer ring surface of the fixed sleeve in the intermediate stator assembly, an outer ring groove correspondingly fixed on the inner ring surface of the rotating shell in the peripheral rotating assembly, and an intermediate positioning valve, which form a front and rear lubricating oil ring groove, a ball bearing movably arranged in the front and rear lubricating oil ring grooves, and a blind cover A respectively provided at both ends of the front and rear lubricating oil ring grooves and fixed and limited by bolts, and a blind cover B fixed and limited by a block;

[0009] The front-end power input member has the function of receiving the kinetic energy of the motor and driving the peripheral rotating assembly to rotate synchronously around the intermediate stator assembly. The main body is in the shape of a trapezoidal ring, and is composed of a trapezoidal bottom seat ring that is assembled with the inner concave sprocket mounting seat and an outer sprocket with an outer diameter smaller than the outer diameter of the rotating shell. The front end power input member is fixedly mounted on the outer ring surface of the front inner concave trapezoidal assembly end of the rotating shell.

[0010] The tail end kinetic energy output drive assembly has the functions of pulling the limit rod end and outputting kinetic energy to drive the rod body to rotate. It mainly includes a seat ring with a limit pin extension hole on the annular surface, and a rod end connecting sleeve for assembly and connection with the rod end;

[0011] The buffer discharge assembly mainly includes a buffer dynamic ring, a buffer static ring, an anti-rotation pin and an external leakage groove. The buffer dynamic ring is fixed on the inner side of the limiting convex card. The top of the anti-rotation pin is flush with the inner ring surface of the buffer dynamic ring 61 and is fixed on the outer side of the limiting convex card 222. The buffer static ring is correspondingly embedded in the limiting groove with the pin compression spring placement hole on the top of the fixing sleeve.

[0012] In the assembled state, the rotating shell and the rotating disk in the peripheral rotating assembly are assembled and interconnected into one by bolts through the bolt limiting mounting holes B on the several convex limiting pillars arranged at intervals and the bolt assembly limiting holes B on the disk surface near the edge of the rotating disk, and the gap therein constitutes the leakage groove; the front end power input component is shrink-fastened and fixed on the outer ring surface of the front end shrinkage trapezoidal assembly end of the rotating shell; the tail end kinetic energy output drive component is mutually inserted through the convex limiting pin on the rotating disk and the pin extension hole on the bottom seat ring. The limit constitutes an organic whole that can be detached as needed, with kinetic energy transmitted by the rotating disk, driving the rod body to rotate synchronously at high speed; the buffer dynamic ring and the buffer static ring in the buffer discharge assembly are arranged at the intersection between the fixed sleeve in the intermediate stator assembly and the rotating disk in the peripheral rotating assembly, and the anti-rotation pin is fixed on the side of the buffer dynamic ring, and its top end surface is flush with the inner ring surface of the buffer dynamic ring, which has the function of preventing the buffer dynamic ring from shifting; the leakage groove is filled by the inter-column gap formed by the assembly and interconnection of several convex limit pillars on the rotating shell and the rotating disk.

[0013] During operation, the outer chain rack is driven by a motor connected by a chain meshing, driving the outer rotating assembly whose main body outer diameter is smaller than the outer diameter of the rotating shell to rotate at high speed around the intermediate stator assembly. Driven by the centrifugal force around the rapidly rotating parts, a strong internal suction force is generated on the inner side of the intersection between the fixed sleeve of the intermediate stator assembly and the middle rotating disk of the outer rotating assembly, and a strong external divergent force is generated on the outside, driving the air containing dust, garbage or dirt around the bearing device to be guided and sucked into the intersection of the intermediate stator assembly and the outer rotating assembly, and pass through the gap at the intersection between the buffer dynamic ring and the buffer static ring, squeeze into the top of the lubricating oil ring groove, and driven by the external divergent force, discharge outward without obstruction through the external leakage groove, thereby effectively avoiding the situation in the prior art where high pressure stagnates above the lubricating oil ring groove due to nowhere to dissipate and discharge, eventually causing the oil seal or cover to be squeezed out, entering the lubricating oil ring groove, and affecting the normal operation of the bearing, thereby ensuring the safe operation of the ball bearing in the oil groove, and also ensuring the normal operation of the rod body and the long-term working stability and continuous working life of the construction machinery and equipment.

[0014] The rationally structured high-speed drive bearing device of the present invention based on the above conception has a rational design of the intermediate stator assembly, the peripheral rotating assembly, the lubricating bearing assembly, the front-end power input component, the rear-end kinetic energy output drive assembly and the buffer discharge assembly on the basis of the existing technology. The double oil groove structure adopted can significantly improve the bearing load capacity and meet the use requirements of the rod body at high speed operation. By using the principle of aerodynamics, a buffer discharge assembly is scientifically added at the junction of the intermediate stator assembly and the peripheral rotating assembly, making full use of the peripheral rotating assembly at the dynamic and static junction when rotating at high speed. The generated high-pressure suction force on the inside and the high-pressure outward thrust on the outside will inevitably draw in environmental dust or dirt at the junction. After passing through the junction, they will be scattered outward rapidly and unimpeded under the guidance of the external leakage groove, thus effectively avoiding the problem in the prior art that the environmental dust or dirt drawn into the junction has nowhere to disperse and is stagnant at high pressure above the lubricating oil tank, causing the oil seal to be squeezed and enter the lubricating oil tank, affecting the normal operation of the bearing, and requiring frequent downtime for maintenance, which not only seriously affects the construction progress, quality and efficiency of the project, but also increases the maintenance workload and increases the overall construction cost. Obviously, the technical solution of the present invention has the characteristics of simple and scientific and reasonable structure, stable and reliable operation, long service life, and low maintenance workload during use. It can eliminate the possibility of garbage or dirt accumulating above the oil tank, ensure the safe and interference-free operation of the bearing in the lubricating oil tank, thereby ensuring the smooth operation of the rod body, and also provides a basic guarantee for the efficient and low-cost construction of mechanical equipment using the bearing device of the present invention. It is an ideal replacement product for existing high-speed drive bearing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] In the picture:

[0017] 1. Intermediate stator assembly 11. Stator shaft 12. Fixing sleeve 121. Spring mounting hole 122. Limiting groove 123. Bolt limiting mounting hole A 13. Positioning plate 131. L-shaped oil injection channel

[0018] 132. Bolt assembly limit hole A 2. Peripheral rotating assembly 21. Rotating shell

[0019] 210. Trapezoidal assembly end 211. Concave sprocket mounting seat 212. Convex limiting support

[0020] 2121. Bolt limit installation hole B 22. Rotating plate 221. Bolt assembly limit hole B

[0021] 222. Limiting convex card 223. Limiting groove 224. External convex main drive limiting card pin 3. Lubrication bearing assembly

[0022] 31. Front and rear lubricating oil ring grooves 311. Inner ring groove ring 312. Outer ring groove ring 313. Intermediate positioning valve

[0023] 32. Ball bearing 33. Cover A 331. Bolt 34. Cover B 341. Stopper

[0024] 4. Front power input member 41. Trapezoidal bottom seat ring 42. Peripheral sprocket

[0025] 5. Tail end kinetic energy output drive assembly 51. Seat ring 511. Limiting pin extension hole

[0026] 52. Rod end connection sleeve 6. Buffer drain assembly 61. Buffer dynamic ring 62. Buffer static ring

[0027] 63. Anti-rotation pin 64. Leakage groove DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and typical embodiments.

[0029] exist Figure 1 In the present invention, a structurally reasonable rod-end high-speed drive bearing device is characterized in that the main body includes an intermediate stator component 1, a peripheral rotating component 2, a lubricating bearing component 3, a front-end power input member 4, a tail-end kinetic energy output drive component 5 and a buffering and draining component 6. The peripheral rotating component 2 is movably sleeved on the periphery of the intermediate stator component 1, the lubricating bearing component 3 is arranged between the intermediate stator component 1 and the peripheral rotating component 2, the front-end power input member 4 is transversely fixed on the outer ring surface of the front inwardly contracted trapezoidal assembly end 210 of the peripheral rotating component 2, the tail-end kinetic energy output drive component 5 is vertically fixed on the tail end center position of the peripheral rotating component 2, and the buffering and draining component 6 is arranged at the junction between the intermediate stator component 1 and the peripheral rotating component 2, wherein:

[0030] The intermediate stator assembly 1 mainly includes a stator shaft 11, a fixed sleeve 12 and a positioning plate 13. The main body of the fixed sleeve 12 is cylindrical and is arranged on the periphery of the stator shaft 11. A limiting groove 122 with a plurality of holes 121 for receiving compression springs with pins is provided on the rear end surface thereof. A plurality of bolt limiting mounting holes A123 for assembling and interconnecting the positioning plate 13 are transversely provided on the front end wall thereof. The middle outer ring surface of the cylinder serves as the limiting setting surface of the inner ring groove ring of the bearing oil groove. The main body of the positioning plate 13 is L-shaped and is sleeved on the front end outer surface of the fixed sleeve 12. A plurality of L-shaped oil injection channels 131 are provided inside as needed. A plurality of bolt assembly limiting holes A132 are fixed on the ring close to the fixed sleeve 12, which are staggered with the L-shaped oil injection channels 131 and assembled correspondingly with the bolt limiting mounting holes A123.

[0031] The peripheral rotating assembly 2 mainly includes a rotating shell 21 and a rotating disk 22. The main body of the rotating shell 21 is cylindrical with the retracted trapezoidal assembly end 210 fixedly provided at the front end. A concave sprocket mounting seat 211 is fixedly provided on the outer annular surface of the retracted trapezoidal assembly end 210. A plurality of convex limiting pillars 212 with bolt limiting mounting holes B2121 are fixedly provided on the rear end annular surface of the cylinder at required intervals. The middle inner annular surface of the cylinder serves as the limiting setting surface of the outer ring groove ring of the bearing oil groove; the main body of the rotating disk 22 is annular to match the cover of the rotating shell 21. A plurality of bolt assembly limiting holes B 221 corresponding to the bolt limiting mounting holes B 2121 on the convex limiting pillars 212 are fixedly provided on the outer edge surface of the disk. A limiting convex card 222 is fixedly provided on the inner annular surface near the inner side, and a limiting groove 223 and a plurality of convex main drive limiting pins 224 are fixedly provided on the outer end surface.

[0032] The lubricating bearing assembly 3 mainly comprises a pair of inner ring grooves 311 respectively fixed on the outer annular surface of the fixed sleeve 12 in the intermediate stator assembly 1, an outer ring groove 312 correspondingly fixed on the inner annular surface of the rotating shell 21 in the peripheral rotating assembly 2, and an intermediate positioning valve 313, forming a front and rear lubricating oil ring groove 31, a ball bearing 32 movably disposed in the front and rear lubricating oil ring grooves 31, and a blind cover A 33 respectively provided at both ends of the front and rear lubricating oil ring grooves 31 and fixed in place by bolts 331, and a blind cover B 34 fixed in place by a stopper 341.

[0033] The front-end power input member 4 has the function of receiving the kinetic energy of the motor and driving the peripheral rotating assembly 2 to rotate synchronously around the intermediate stator assembly 1. The main body is in the shape of a trapezoidal ring, and is composed of a trapezoidal bottom seat ring 41 that is assembled with the recessed sprocket mounting seat 211 and a peripheral sprocket 42 with an outer diameter smaller than the outer diameter of the rotating shell 21. It is fixedly mounted on the outer annular surface of the front recessed trapezoidal assembly end 210 of the rotating shell 21.

[0034] The tail end kinetic energy output drive assembly 5 has the functions of pulling the limit rod end and outputting kinetic energy to drive the rod body to rotate. It mainly includes a seat ring 51 with a limit pin extension hole 511 on the annular surface, and a rod end connecting sleeve 52 for assembly and connection with the rod end.

[0035] The buffer discharge assembly 6 mainly includes a buffer dynamic ring 61, a buffer static ring 62, an anti-rotation pin 63 and an external leakage groove 64. The buffer dynamic ring 61 is fixedly arranged on the inner side of the limiting convex clamp 222. The top end of the anti-rotation pin 63 is flush with the inner ring surface of the buffer dynamic ring 61 and is fixedly arranged on the outer side of the limiting convex clamp 222. The buffer static ring 62 is correspondingly embedded in the limiting groove 122 of the pin compression spring mounting hole 121 on the top end of the fixing sleeve 12.

[0036] In the assembled state, the rotating shell 21 and the rotating disk 22 in the peripheral rotating assembly 2 are assembled and interconnected into one piece by bolts through the bolt limiting mounting holes B2121 on the several convex limiting pillars 212 arranged at intervals and the bolt assembly limiting holes B 221 on the near-edge disk surface of the rotating disk 22, and the gap therein constitutes the leakage groove 64; the front end power input component 4 is shrink-fitted on the outer ring surface of the front end of the shrinking trapezoidal assembly end 210 of the rotating shell 21; the tail end kinetic energy output drive component 5 is mutually inserted and limited by the convex limiting pin 224 on the rotating disk 22 and the pin extension hole 44 on the bottom seat ring 51, forming an organic whole that can be detached as needed, the kinetic energy is transmitted by the rotating disk 22, and the rod body is driven to rotate synchronously at high speed; the The buffer dynamic ring 61 and the buffer static ring 62 in the buffer discharge assembly 6 are arranged at the intersection between the fixed sleeve 12 in the intermediate stator assembly 1 and the rotating disk 22 in the peripheral rotating assembly 2. The anti-rotation pin 63 is fixed on the side of the buffer dynamic ring 61, and its top end surface is flush with the inner ring surface of the buffer dynamic ring 61, which has the function of preventing the buffer dynamic ring 61 from shifting; the leakage groove 64 is formed by the inter-column gap formed by the assembly and interconnection of several convex limiting pillars 212 on the rotating shell 21 and the rotating disk 22.

[0037] During operation, the outer sprocket 42 is driven by a motor connected by a chain meshing, driving the outer rotating assembly 2 whose main body outer diameter is smaller than the outer diameter of the rotating shell 21 to rotate at high speed around the intermediate stator assembly 1. Driven by the centrifugal force around the rapidly rotating parts, a strong internal suction force is generated on the inner side of the intersection between the fixed sleeve 12 of the intermediate stator assembly 1 and the rotating disk 22 of the outer rotating assembly 2, and a strong external divergent force is generated on the outer side, driving the air containing dust, garbage or dirt around the bearing device to be guided and sucked into the intersection of the intermediate stator assembly 1 and the outer rotating assembly 2. The oil flows through the gap at the junction of the dynamic buffer ring 61 and the static buffer ring 62, squeezes into the top of the lubricating oil ring groove 31, and is driven by the outward divergent force to discharge outward without hindrance through the leakage groove 64, thereby effectively avoiding the situation in the prior art where high pressure stagnates above the lubricating oil ring groove 31 due to nowhere to diverge and discharge, eventually causing the oil seal or cover to be squeezed out, entering the lubricating oil ring groove, and affecting the normal operation of the bearing, thereby ensuring the safe operation of the ball bearing in the oil groove, and also ensuring the normal operation of the rod body and the long-term working stability and continuous working life of the construction machinery and equipment.

Claims

1. A rationally structured rod end high-speed drive bearing device, characterized in that The main body comprises an intermediate stator assembly (1), a peripheral rotating assembly (2), a lubricating bearing assembly (3), a front end power input component (4), a tail end kinetic energy output drive assembly (5) and a buffer discharge assembly (6), wherein the peripheral rotating assembly (2) is movably sleeved on the periphery of the intermediate stator assembly (1), the lubricating bearing assembly (3) is arranged between the intermediate stator assembly (1) and the peripheral rotating assembly (2), the front end power input component (4) is transversely fixed on the outer ring surface of the front inner contracted trapezoidal assembly end (210) of the peripheral rotating assembly (2), the tail end kinetic energy output drive assembly (5) is vertically fixed on the tail end center position of the peripheral rotating assembly (2), and the buffer discharge assembly (6) is arranged at the junction between the intermediate stator assembly (1) and the peripheral rotating assembly (2), wherein: The intermediate stator assembly (1) mainly includes a stator shaft (11), a fixed sleeve (12) and a positioning plate (13). The main body of the fixed sleeve (12) is cylindrical and is arranged on the periphery of the stator shaft (11). A limiting groove (122) with a plurality of pin compression spring placement holes (121) is provided on the tail end surface thereof, and a plurality of bolt limiting mounting holes A (123) for assembling and interconnecting the positioning plate (13) are transversely provided on the front end wall thereof. The middle outer ring surface of the cylinder serves as the limiting setting surface of the inner ring groove ring of the bearing oil groove. The main body of the positioning plate (13) is L-shaped and is sleeved on the front end outer surface of the fixed sleeve (12). A plurality of L-shaped oil injection channels (131) are provided inside as needed. A plurality of bolt assembly limiting holes A (132) are fixed on the ring close to the fixed sleeve (12) and are staggered with the L-shaped oil injection channels (131) and assembled correspondingly with the bolt limiting mounting holes A (123); The peripheral rotating assembly (2) mainly comprises a rotating shell (21) and a rotating disk (22). The main body of the rotating shell (21) is cylindrical with the front end fixedly provided with the retracted trapezoidal assembly end (210). An inner concave sprocket mounting seat (211) is fixedly provided on the outer annular surface of the retracted trapezoidal assembly end (210). A plurality of outer convex limiting pillars (212) with bolt limiting mounting holes B (2121) are fixedly provided on the rear end annular surface of the cylinder at required intervals. The middle inner annular surface of the cylinder serves as The limiting setting surface of the outer ring of the bearing oil groove; the main body of the rotating disk (22) is in a circular ring shape that matches the cover of the rotating shell (21), and a plurality of bolt assembly limiting holes B (221) that correspond to the bolt limiting mounting holes B (2121) on the convex limiting pillar (212) are fixed on the outer edge of the disk surface, and a limiting convex card (222) is fixed on the inner ring surface near the inner side, and a limiting groove (223) and a plurality of convex main drive limiting pins (224) are fixed on the outer end surface; The lubricating bearing assembly (3) mainly comprises a pair of inner ring grooves (311) respectively fixed on the outer ring surface of the fixed sleeve (12) in the intermediate stator assembly (1), an outer ring groove (312) correspondingly fixed on the inner ring surface of the rotating shell (21) in the peripheral rotating assembly (2), and a front and rear lubricating oil ring groove (31) formed by an intermediate positioning valve (313), ball bearings (32) movably arranged in the front and rear lubricating oil ring grooves (31), and blind covers A (33) respectively correspondingly arranged at both ends of the front and rear lubricating oil ring grooves (31) and fixed by bolts (331), and blind covers B (34) fixed by a stopper (341); The front-end power input component (4) has the function of receiving the kinetic energy of the motor and driving the peripheral rotating component (2) to rotate synchronously around the intermediate stator component (1). The main body is in the shape of a trapezoidal ring and is composed of a trapezoidal bottom seat ring (41) that is assembled with the recessed sprocket mounting seat (211) and a peripheral sprocket (42) with an outer diameter smaller than the outer diameter of the rotating shell (21). The front-end power input component (4) is shrink-fitted on the annular surface of the front shrink-fit trapezoidal assembly end (210) of the rotating shell (21); The tail end kinetic energy output drive assembly (5) has the functions of pulling the limit rod end and outputting kinetic energy to drive the rod body to rotate, and mainly includes a seat ring (51) with a limit pin extension hole (511) provided on the annular surface, and a rod end connecting sleeve (52) for connecting to the rod end; The buffer discharge assembly (6) mainly includes a buffer dynamic ring (61), a buffer static ring (62), an anti-rotation pin (63) and an external leakage groove (64), wherein the buffer dynamic ring (61) is fixed on the inner side of the limiting convex card (222), the top end of the anti-rotation pin (63) is flush with the inner ring surface of the buffer dynamic ring (61) and is fixed on the outer side of the limiting convex card (222), and the buffer static ring (62) is correspondingly embedded in the limiting groove (122) of the compression spring placement hole (121) with the pin on the top end of the fixing sleeve (12); In the assembled state, the rotating shell (21) and the rotating disk (22) in the peripheral rotating assembly (2) are assembled and interconnected into one piece by bolts through the bolt limiting mounting holes B (2121) on the plurality of convex limiting pillars (212) arranged at intervals and the bolt assembly limiting holes B (221) on the near edge of the rotating disk (22), wherein the gap constitutes the leakage groove (64); the front end power input component (4) is shrink-fitted on the outer ring surface of the front end shrink-type trapezoidal assembly end (210) of the rotating shell (21); the tail end kinetic energy output drive component (5) is connected to the rotating disk (22) through the convex limiting latch (224) and the pin extension hole (44) on the bottom seat ring (51). ) are inserted into each other and limited, forming an organic whole that can be removed as needed, the kinetic energy is transmitted by the rotating disk (22), and the rod body is driven to rotate synchronously at high speed; the buffer dynamic ring (61) and the buffer static ring (62) in the buffer discharge component (6) are arranged at the intersection between the fixed sleeve (12) in the intermediate stator component (1) and the rotating disk (22) in the peripheral rotating component (2); the anti-rotation pin (63) is fixed on the side of the buffer dynamic ring (61), and its top end surface is flush with the inner ring surface of the buffer dynamic ring (61), which has the function of preventing the buffer dynamic ring (61) from shifting; the leakage groove (64) is filled by the inter-column gap formed by the assembly and interconnection of a plurality of convex limiting pillars (212) on the rotating shell (21) and the rotating disk (22); During operation, the outer sprocket (42) is driven by a motor connected by a chain meshing, driving the outer rotating assembly (2) whose outer diameter is smaller than the outer diameter of the rotating shell (21) to rotate at high speed around the intermediate stator assembly (1). Driven by the centrifugal force around the rapidly rotating parts, a strong internal suction force is generated on the inner side of the junction between the fixed sleeve (12) of the intermediate stator assembly (1) and the rotating disk (22) of the outer rotating assembly (2), and a strong external divergent force is generated on the outer side, driving the air containing dust, garbage or dirt around the bearing device to be guided and sucked into the intermediate stator assembly (1) and the outer The oil passes through the intersection of the rotating assembly (2) and the gap between the buffer dynamic ring (61) and the buffer static ring (62), squeezes into the top of the lubricating oil ring groove (31), and is driven by the external divergent force to fly outward through the external leakage groove (64) without hindrance, thereby effectively avoiding the situation where high pressure is stagnant above the lubricating oil ring groove (31) due to having nowhere to diverge and discharge, and eventually causes the oil to break through the cover, enter the lubricating oil ring groove, and affect the normal operation of the bearing, thereby ensuring the safe operation of the ball bearing in the oil groove, the normal operation of the rod body, and the long-term working stability and continuous working life of the construction machinery and equipment.

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