A structural rational type rod end low-speed driving bearing device

Abstract

The present application relates to a kind of structural rational type rod end low-speed drive bearing device, it mainly includes intermediate stator assembly, peripheral rotating assembly, lubricating bearing assembly, front end power input component and tail end kinetic energy output drive assembly, and the buffer resistance leakage component between fixed component and rotating component is set up. Using aerodynamics principle, for the dust or dirt of outside world inevitably inhaled to the junction of fixed component and rotating component during work is reasonably set with an efficient drainage channel, effectively overcome the dust or dirt inhaled in prior art is extruded into high pressure retention above oil tank, leading to damage oil seal, extrude into oil tank, affect the normal operation of ball bearing, thereby affect the working stability and normal working life of bearing device, and need to be frequently stopped maintenance, affect construction progress and work efficiency, increase maintenance workload and daily use cost The deficiency of, structure is reasonable and scientific, work is reliable and stable, has very strong practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical transmission components, in particular to a structure reasonable type rod end low speed drive bearing device. BACKGROUND

[0002] Bearing is an important part in modern mechanical equipment, its main function is to support the mechanical rotating body, reduce the friction coefficient in its movement process, and ensure its rotation accuracy and balanced operation. It is also a functional component that reduces the load friction coefficient during mechanical transmission. Larger load capacity and impact resistance, and longer reliable working life are its most basic requirements. Mechanical bearings, according to the friction properties between moving elements, are divided into rolling bearings and sliding bearings. They are widely used in applicable machine equipment and instruments. In heavy machinery equipment, more often used is to combine sliding bearings with other mechanical parts to form a suitable bearing device that fixes and limits sliding bearings and has certain environmental protection effect. When set at both ends of the rod, it can not only fix and support the rod end, but also ensure the stable and low resistance operation of the rod. It is widely used in heavy machinery equipment such as mechanical drilling, mining machinery, water conservancy, pollution environmental protection treatment, etc. with less concentricity requirement, complex working environment and large surface pressure, and slow progress swing or rotation. This bearing device is commonly known as rod end joint bearing device, simply referred to as rod end bearing device. When used, it is set at both ends of the rod in pairs, with main drive and driven function, so the structure is slightly different. The bearing device set at one end of the rod and driven by external kinetic energy for driving operation is a rod end drive bearing device, and the bearing device set at the other end of the rod and driven by the rotating rod for driving operation is a rod end low speed drive bearing device. Among them, the drive bearing device is divided into high speed drive bearing device and low speed drive bearing device according to the speed characteristics, and their common task is to coordinate operation, common support and drive the rod to work stably at a limited speed.

[0003] The present application relates to a kind of innovative design products developed on the basis of existing conventional rod end low-speed drive bearing device to overcome its shortcomings, traditional rod end low-speed drive bearing device all include setting with intermediate stator assembly, peripheral rotating assembly, lubricating bearing assembly, with the front end power input drive component and tail end kinetic energy output drive assembly of assembly connection, initial operating stage is good, but as time goes on, gradually find that its long-term work stability is poor, continuous reliable working life is very short, sometimes because of uneven speed, even jamming situation and often need to stop maintenance, and when maintenance, it is found that, mostly because foreign matter is extruded in lubricating oil ring groove, sometimes even find that dirt solidifies in groove, leading to the situation that ball bearing cannot run, seriously affect the running stability of rod body, thereby affect operation process, construction efficiency, quality and construction cost.Therefore, existing rod end low-speed drive bearing, overall there are many deficiencies such as unscientific and unreasonable structure, not too ideal practical effect, large routine maintenance workload and high construction cost, from the economic and practicality, all are less ideal.It is necessary to start from the rationalization of structure, and be innovated and improved, so as to meet the special requirements of high load, high efficiency and low cost construction of heavy mechanized operation equipment in complex environment. SUMMARY

[0004] The present application relates to a kind of innovative design products developed on the basis of existing conventional rod end low-speed drive bearing device to overcome its shortcomings, traditional rod end low-speed drive bearing device all include setting with intermediate stator assembly, peripheral rotating assembly, lubricating bearing assembly, with the front end power input drive component and tail end kinetic energy output drive assembly of assembly connection, initial operating stage is good, but as time goes on, gradually find that its long-term work stability is poor, continuous reliable working life is very short, sometimes because of uneven speed, even jamming situation and often need to stop maintenance, and when maintenance, it is found that, mostly because foreign matter is extruded in lubricating oil ring groove, sometimes even find that dirt solidifies in groove, leading to the situation that ball bearing cannot run, seriously affect the running stability of rod body, thereby affect operation process, construction efficiency, quality and construction cost.Therefore, existing rod end low-speed drive bearing, overall there are many deficiencies such as unscientific and unreasonable structure, not too ideal practical effect, large routine maintenance workload and high construction cost, from the economic and practicality, all are less ideal.It is necessary to start from the rationalization of structure, and be innovated and improved, so as to meet the special requirements of high load, high efficiency and low cost construction of heavy mechanized operation equipment in complex environment.

[0005] The present application relates to a kind of innovative design products developed on the basis of existing conventional rod end low-speed drive bearing device to overcome its shortcomings, traditional rod end low-speed drive bearing device all include setting with intermediate stator assembly, peripheral rotating assembly, lubricating bearing assembly, with the front end power input drive component and tail end kinetic energy output drive assembly of assembly connection, initial operating stage is good, but as time goes on, gradually find that its long-term work stability is poor, continuous reliable working life is very short, sometimes because of uneven speed, even jamming situation and often need to stop maintenance, and when maintenance, it is found that, mostly because foreign matter is extruded in lubricating oil ring groove, sometimes even find that dirt solidifies in groove, leading to the situation that ball bearing cannot run, seriously affect the running stability of rod body, thereby affect operation process, construction efficiency, quality and construction cost.Therefore, existing rod end low-speed drive bearing, overall there are many deficiencies such as unscientific and unreasonable structure, not too ideal practical effect, large routine maintenance workload and high construction cost, from the economic and practicality, all are less ideal.It is necessary to start from the rationalization of structure, and be innovated and improved, so as to meet the special requirements of high load, high efficiency and low cost construction of heavy mechanized operation equipment in complex environment.

[0006] The intermediate stator assembly mainly includes stator shaft, fixed sleeve and positioning disc, wherein: the fixed sleeve body is cylindrical, the fixed sleeve is arranged on the periphery of the stator shaft, one end face is provided with a limiting groove with a pin compression spring mounting hole, the other end is transversely provided with a plurality of bolt assembly holes for assembling the positioning disc; the positioning disc body is L-shaped annular, is sleeved on the front end of the fixed sleeve, a plurality of oil injection holes are arranged on the surface as needed, a plurality of bolt mounting holes matched with the bolt assembly holes are fixed on the annular surface of the fixed sleeve;

[0007] The peripheral rotating assembly mainly comprises a rotating shell and a rotating disc, wherein the front end of the rotating shell is fixed with an inner recessed sprocket mounting seat, the rear end is fixed with a plurality of outer convex limiting supports provided with bolt limiting mounting holes at intervals on the ring surface, and the middle inner ring surface of the rotating shell is provided with a bearing oil groove limiting surface; the main body of the rotating disc is a circular ring corresponding to the cover of the rotating shell, a plurality of bolt limiting assembly holes corresponding to the bolt limiting mounting holes on the outer convex limiting supports are fixed on the outer peripheral edge disc surface, a limiting convex card is fixed on the inner ring surface, a limiting recess is fixed on the outer end surface, and a plurality of outer convex main drive limiting pin holes are provided;

[0008] The lubricating bearing assembly mainly comprises front and rear lubricating oil ring grooves composed of a pair of inner ring grooves fixed on the outer ring surface of the middle stator assembly, a pair of outer ring grooves fixed on the inner ring surface of the rotating shell of the peripheral rotating assembly, and a middle positioning valve, ball bearings movably arranged in the front and rear lubricating oil ring grooves, and muffle covers A and B fixed by bolts and stop blocks, respectively, at both ends of the front and rear lubricating oil ring grooves;

[0009] The front power input member has the function of accepting motor kinetic energy driving and driving the peripheral rotating assembly to rotate synchronously around the middle stator assembly, and is fixed on the front peripheral inner recessed ring surface of the rotating shell, and the main body is a recessed trapezoidal circular ring composed of a bottom seat ring and a peripheral chain gear;

[0010] The tail end kinetic energy output driving assembly has the functions of pulling the limiting rod end and outputting kinetic energy to drive the rod body to rotate, mainly comprising a seat ring provided with limiting pin hole extension holes on the ring surface, and a rod end connecting sleeve connected with the rod end;

[0011] The buffer resistance leakage assembly mainly comprises a buffer dynamic ring, a buffer static ring, an anti-rotation pin and an outer leakage groove, wherein the buffer dynamic ring is fixed on the inner side of the limiting convex card, the top end of the anti-rotation pin is flush with the inner ring surface of the buffer dynamic ring and is fixed on the outer side of the limiting convex card, has the function of blocking the displacement of the buffer dynamic ring (61), and the buffer static ring is correspondingly embedded in the limiting recess of the fixed sleeve top end provided with the column pin compression spring mounting hole;

[0012] In the assembled state, the rotating shell and the rotating disc in the peripheral rotating assembly are interconnected by bolts through the bolt limiting mounting holes on the outer convex limiting supports and the bolt limiting assembly holes on the rotating disc edge disc surface; the front power input member is fixed on the front peripheral inner recessed ring surface of the rotating shell; the tail end kinetic energy output driving assembly is limited by the outer convex limiting pin on the rotating disc and the pin extension hole on the bottom seat ring, and constitutes a convenient mayThe buffering dynamic ring and the buffering static ring in the buffering and blocking assembly are arranged at the joint between the fixed sleeve of the intermediate stator assembly and the rotating disc of the peripheral rotating assembly, and the anti-rotation pin is arranged beside the buffering dynamic ring and has a top end surface which is flush with the inner ring surface of the buffering dynamic ring.

[0013] In operation, the peripheral chain gear is driven by the motor connected through the chain engagement, and drives the peripheral rotating assembly to rotate around the intermediate stator assembly, and the rotating speed depends on the diameter of the peripheral chain gear. The peripheral chain gear with the outer convex shape has a large diameter, and thus the peripheral rotating assembly rotates at a relatively low speed. During the low-speed rotation of the peripheral rotating assembly, the centrifugal force around the high-speed rotating member generates a strong suction force on the inner side of the joint between the fixed sleeve of the intermediate stator assembly and the rotating disc of the peripheral rotating assembly, and generates a strong outward dispersion force on the other side. The air containing dust or dirt around the bearing device is guided and sucked into the joint between the intermediate stator assembly and the peripheral rotating assembly, and then passes through the gap between the buffering dynamic ring and the buffering static ring, and is extruded into the space above the lubricating oil ring groove. Then, the air is driven by the outward dispersion force, guided by the outward discharge groove, and discharged outward without resistance. Thus, the air is prevented from being high-pressured and stagnant above the front and rear lubricating oil ring grooves due to no place for dispersion, and thus the damage of the oil seal, the extrusion into the front and rear lubricating oil ring grooves, and the like are avoided. Thus, the safe operation and normal service life of the ball bearing in the oil groove are ensured, and the stable operation of the rod body and the working stability, high efficiency and low cost operation of the construction machinery and equipment are ensured.

[0014] The low-speed driving bearing device with reasonable structure based on the above concept, since the intermediate stator assembly, the peripheral rotating assembly, the lubricating bearing assembly, the front end power input component, the tail end kinetic energy output driving assembly and the buffer resistance discharge assembly are reasonably designed on the basis of the prior art, the double oil groove structure is adopted, the bearing carrying capacity is significantly improved, the use requirements of the rod body low-speed operation are met, the buffer resistance discharge assembly is scientifically arranged at the intersection of the intermediate stator assembly and the peripheral rotating assembly by using the principle of aerodynamics, the environmental dust or dirt inevitably sucked into the intersection is rapidly scattered outward under the guidance of the outer discharge groove after passing through the intersection, so that the environmental dust or dirt sucked into the intersection in the prior art is effectively avoided to be high-pressure stagnated above the front and rear lubricating oil ring grooves due to no place to disperse, the oil seal is squeezed and broken, the environmental dust or dirt enters the front and rear lubricating oil ring grooves, the normal operation of the bearing is affected, the machine needs to be frequently stopped for maintenance, the construction progress, quality and efficiency of the project are seriously affected, the maintenance workload is increased, and the overall construction cost is increased. Obviously, the technical scheme of the application has the characteristics of simple and scientific and reasonable structure, stable and reliable work, long service life, small maintenance workload during use and the like, the possibility of garbage or dirt accumulation above the oil groove is eliminated, the bearing in the front and rear lubricating oil ring grooves is ensured to be safely operated without interference, the stable operation of the rod body is ensured, and the high efficiency and low cost construction of the mechanical equipment using the bearing device is provided, so that the application is an ideal updated product of the prior low-speed driving bearing device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the embodiment of the application.

[0016] In the figure:

[0017] 1. Intermediate stator assembly 11. Stator shaft 12. Fixed sleeve 121. Spring seat hole 122. Limiting groove 123. Bolt assembly hole 13. Positioning disc 131. Oil injection hole 132. Bolt mounting hole 2. Peripheral rotating assembly 21. Rotating shell 211. Sprocket mounting seat 212. Outer convex limiting pillar 2121. Bolt limiting mounting hole 22. Rotating disc 221. Bolt limiting assembly hole 222. Limiting convex card 223. Limiting groove 224. Outer convex main drive limiting card pin 3. Lubricating bearing assembly 31. Front and rear lubricating oil ring groove 311. Inner ring groove ring 312. Outer ring groove ring 313. Intermediate positioning valve 32. Ball bearing 33. Cover 331. Bolt 34. Oil seal 4. Front end power input member 41. Bottom seat ring 42. Peripheral chain rack 5. Tail end kinetic energy output drive assembly 51. Seat ring 511. Limiting pin hole 52. Rod end connecting sleeve 6. Buffer blocking assembly 61. Buffer dynamic ring 62. Buffer static ring 63. Anti-rotation pin 64. Outer leakage groove DETAILED DESCRIPTION

[0018] The application will be further described below in conjunction with the drawings and exemplary embodiments.

[0019] In Figure 1 the application, a structure reasonable type rod end low speed drive bearing device, the main body includes intermediate stator assembly 1, peripheral rotating assembly 2, lubricating bearing assembly 3, front end power input member 4 and tail end kinetic energy output drive assembly 5, characterized by further comprising the buffer blocking assembly 6 arranged between the intermediate stator assembly 1 and the peripheral rotating assembly 2, wherein:

[0020] The intermediate stator assembly 1 mainly includes stator shaft 11, fixed sleeve 12 and positioning disc 13, wherein: the fixed sleeve 12 is mainly cylindrical, and the fixed sleeve is arranged on the periphery of the stator shaft 11, one end face of the fixed sleeve is provided with a limiting groove 122 provided with a pin compression spring seat hole 121, the other end ring surface is provided with a plurality of bolt assembly holes 123 for assembling the positioning disc 13 as needed, and the intermediate outer ring surface serves as a bearing oil groove limiting surface; the positioning disc 13 is mainly L-shaped annular, and is arranged on the front end of the fixed sleeve 12, a plurality of oil injection holes 131 are arranged on the positioning disc 13 as needed, and a plurality of bolt mounting holes 132 corresponding to the bolt assembly holes 123 are arranged on the annular surface of the fixed sleeve 12;

[0021] The peripheral rotating assembly 2 mainly comprises a rotating shell 21 and a rotating disc 22, wherein: the front end of the rotating shell 21 is fixedly provided with an inner recessed sprocket mounting seat 211, the rear end is fixedly provided with a plurality of outer convex limiting struts 212 with bolt limiting mounting holes 2121 at intervals on the annular surface, and the middle inner annular surface serves as a bearing oil groove limiting surface; the rotating disc 22 is annular and corresponds to the cover of the rotating shell 21, a plurality of bolt limiting assembly holes 221 corresponding to the bolt limiting mounting holes 2121 on the outer convex limiting struts 212 are fixedly provided on the outer peripheral edge of the disc surface, a limiting convex card 222 is fixedly provided on the inner annular surface, a limiting recess 223 and a plurality of outer convex main drive limiting card pins 224 are fixedly provided on the outer end surface;

[0022] The lubricating bearing assembly 3 mainly comprises front and rear lubricating oil grooves 31 composed of a pair of inner ring groove rings 311 fixedly provided on the outer annular surface of the fixed sleeve 12 in the middle stator assembly 1, a pair of outer ring groove rings 312 fixedly provided on the inner annular surface of the rotating shell 21 in the peripheral rotating assembly 2, and a middle positioning valve 313, ball bearings 32 movably arranged in the front and rear lubricating oil grooves 31, and muffle covers 33 and oil seals 34 fixedly limited by bolts 331 arranged at the two ends of the front and rear lubricating oil grooves 31;

[0023] The front end power input member 4 has the function of accepting motor kinetic energy driving and driving the peripheral rotating assembly 2 to rotate synchronously around the middle stator assembly 1, and is protrusively fixedly provided on the front outer side surface of the rotating shell 21 and has a main body in the form of a tapered annular ring composed of a bottom seat ring 41 and a peripheral chain gear 42;

[0024] The tail end kinetic energy output driving assembly 5 has the functions of pulling and limiting the rod end and outputting kinetic energy to drive the rod to rotate, mainly comprises a seat ring 51 with a limiting card pin extension hole 511 on the annular surface, and a rod end connecting sleeve 52 connected with the rod end for assembly;

[0025] The buffer blocking assembly 6 mainly comprises a buffer dynamic ring 61, a buffer static ring 62, an anti-rotation pin 63, and an outer leakage groove 64, wherein: the buffer dynamic ring 61 is fixedly provided on the inner side of the limiting convex card 222, the top end of the anti-rotation pin 63 is flush with the inner annular surface of the buffer dynamic ring 61 and is fixedly provided on the outer side of the limiting convex card 222, and the buffer static ring 62 is correspondingly embedded in the limiting recess 122 of the bolt pin compression spring mounting hole 121 on the top end of the fixed sleeve 12;

[0026] In the assembled state, the rotating shell 21 and the rotating disc 22 in the peripheral rotating assembly 2 are interconnected by bolts through the bolt limiting mounting holes 2121 on the outer convex limiting pillars 212 and the bolt limiting assembly holes 221 on the proximal edge of the disc surface of the rotating disc 22, and the gap forms the outer leakage groove 64; the front end power input member 4 is convexly fixed on the front end outer ring surface of the rotating shell 21; the tail end kinetic energy output driving assembly 5 is limited by the outer convex limiting pin 224 on the rotating disc 22 and the pin extending hole 511 on the bottom seat ring 41, forming a whole that is convenient to disassemble, transfers kinetic energy, and drives the rod body to rotate synchronously; the buffer dynamic ring 61 and the buffer static ring 62 in the buffer resistance assembly 6 are arranged at the interface between the fixed sleeve 12 in the intermediate stator assembly 1 and the rotating disc 22 in the peripheral rotating assembly 2, and the anti-rotation pin 63 is fixed on the side of the buffer dynamic ring 61, with the top end surface flush with the inner ring surface of the buffer dynamic ring 61, having the function of blocking the displacement of the buffer dynamic ring 61; the outer leakage groove 64 is filled by the column gap formed after the assembly of the rotating shell 21 and the rotating disc 22.

[0027] In operation, the peripheral chain gear 42 is driven by the motor connected by the chain engagement, driving the peripheral rotating assembly 2 to rotate around the intermediate stator assembly 1, and the rotating speed depends on the diameter of the peripheral chain gear 42. The peripheral chain gear 42 with an outer convex shape has a larger diameter, which will inevitably make the peripheral rotating assembly 2 rotate at a relatively low speed. During the low-speed rotation of the peripheral rotating assembly 2, a strong suction force is generated inside the interface between the fixed sleeve 12 in the intermediate stator assembly 1 and the rotating disc 22 in the peripheral rotating assembly 2, and a strong outward dispersion force is generated outside the interface, which is driven by the centrifugal force around the high-speed rotating member. The air containing dust or dirt around the bearing device is guided and sucked into the interface between the intermediate stator assembly 1 and the peripheral rotating assembly 2, and then squeezed into the upper part of the lubricating oil ring groove 31, and then driven by the outward dispersion force and guided by the outer leakage groove 64 to fly outward without resistance. This can avoid the situation where the oil seal 34 is damaged, the air is squeezed into the front and rear lubricating oil ring grooves 31, and the high-pressure air stagnates above the lubricating oil ring grooves 31, ultimately leading to damage to the oil seal 34 and the squeezing of the air into the front and rear lubricating oil ring grooves 31, thereby ensuring the safe operation and normal working life of the oil groove ball bearing 32 and the stable operation of the rod body and the working stability and high efficiency, low cost operation of the construction machinery and equipment.

Claims

1. A structurally sound low-speed drive bearing device for rod ends, comprising a central stator assembly (1), a peripheral rotating assembly (2), a lubricating bearing assembly (3), a front-end power input component (4), and a rear-end kinetic energy output drive assembly (5), characterized in that... It also includes a buffer and leakage component (6) disposed 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 disk (13). The fixed sleeve (12) is cylindrical in shape and is fixedly sleeved around the stator shaft (11). One end face of the fixed sleeve is provided with a limiting groove (122) with a pin compression spring mounting hole (121). The other end is provided with several bolt mounting holes (123) for assembling and interconnecting the positioning disk (13). The outer ring surface in the middle serves as the bearing oil groove limiting setting surface. The positioning disk (13) is L-shaped and is sleeved on the outer surface of the front end of the fixed sleeve (12). Several oil injection through holes (131) are provided on the fixed sleeve (12) as needed. Several bolt mounting holes (132) that match the bolt mounting holes (123) are fixed on the ring that is close to the fixed sleeve (12). The peripheral rotating assembly (2) mainly includes a rotating shell (21) and a rotating disk (22), wherein: a concave sprocket mounting seat (211) is fixed on the front end ring surface of the rotating shell (21), and a number of convex limiting support columns (212) with bolt limiting mounting holes (2121) are fixed at intervals on the rear end ring surface as needed, and the middle inner ring surface serves as the bearing oil groove limiting setting surface; the main body of the rotating disk (22) is in the shape of a ring that matches the rotating shell (21), and a number of bolt limiting assembly holes (221) corresponding to the bolt limiting mounting holes (2121) on the convex limiting support columns (212) are fixed on its outer periphery near the edge of the disk surface, and a limiting protrusion (222) is fixed on its inner ring surface, and a limiting groove (223) and a number of convex main drive limiting pins (224) are fixed on its outer end surface; The lubricating bearing assembly (3) mainly includes a pair of inner ring grooves (311) fixed on the outer ring surface of the fixed sleeve (12) in the intermediate stator assembly (1), an outer ring groove (312) fixed on the inner ring surface of the rotating shell (21) in the outer rotating assembly (2), and an intermediate positioning valve (313) forming a front and rear lubricating oil ring groove (31), ball bearings (32) movably installed in the front and rear lubricating oil ring grooves (31), and end caps (33) fixed and limited by bolts (331) respectively set at both ends of the front and rear lubricating oil ring grooves (31), and an oil seal (34); 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). It is fixed on the front-end outer ring surface of the rotating shell (21), and the main body is in the shape of an outwardly convex trapezoidal ring composed of a bottom seat ring (41) and a peripheral chain gear (42). The tail end kinetic energy output drive assembly (5) has the functions of traction limiting rod end and outputting kinetic energy and driving rod body to rotate. It mainly includes a seat ring (51) with a limiting pin extension hole (511) on the ring surface, and a rod end connecting sleeve (52) for assembly and connection with the rod end. The buffer leakage assembly (6) mainly includes a buffer moving ring (61), a buffer stationary ring (62), an anti-rotation pin (63), and an external leakage groove (64), wherein: the buffer moving ring (61) is fixed on the inner side of the limiting protrusion (222); the top end of the anti-rotation pin (63) is flush with the inner ring surface of the buffer moving ring (61), and has the function of preventing the buffer moving ring (61) from shifting; the buffer stationary ring (62) is correspondingly embedded in the limiting groove (122) of the pin-compression spring mounting hole (121) on the top end of the fixed sleeve (12); In the assembled state, the rotating shell (21) and the rotating disk (22) in the peripheral rotating assembly (2) are interconnected by bolts through the bolt limiting mounting holes (2121) on the several convex limiting support pillars (212) and the bolt limiting mounting holes (221) on the near edge of the rotating disk (22), and the gaps therein constitute the external leakage groove (64); the front end power input component (4) is fixed on the front end peripheral inner ring surface of the rotating shell (21); the tail end kinetic energy output drive component (5) is connected by the convex limiting pin (224) on the rotating disk (22) and the bottom The pin extension holes (44) on the seat ring (41) are interlocked and limited to form an integral part that is easy to disassemble as needed, transmits kinetic energy through the rotating disk (22), and drives the rod to rotate synchronously; the buffer moving ring (61) and buffer stationary ring (62) in the buffer leakage assembly (6) are located at the junction between the fixed sleeve (12) in the intermediate stator assembly (1) and the rotating disk (22) in the peripheral rotating assembly (2), and the anti-rotation pin (63) is fixed on the side of the buffer moving ring (61); the external leakage groove (64) is filled by the gap between the columns formed by the assembly of several protruding limiting pillars (212) on the rotating shell (21) and the rotating disk (22).

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