A structurally novel rod end drive bearing device

Abstract

The present application relates to a kind of structural novel rod end driving bearing device, including stator assembly, rotating assembly, lubricated bearing assembly, front end power input component, tail end kinetic energy output driving component and buffer resistance component.The shell of bearing device is set to facilitate safe operation fixed type, rotating assembly is set to help reduce noise pollution and environmental interference built-in type, lubricated bearing assembly adopts double oil groove type to help rod body high-speed smooth operation, the outer leakage groove in buffer resistance component provides an efficient drainage channel for the dust or dirt of external environment inevitably sucked into the intersection of fixed component and rotating component during work, can ensure that bearing is in normal operation in pollution-free environment, to significantly improve the working stability and normal working life of bearing device, simple and reasonable structure, stable and safe and reliable work, both strong load capacity and anti-interference ability, and daily maintenance workload and use cost are low, have strong practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical transmission components, in particular to a novel rod end driving bearing device. BACKGROUND

[0002] Bearing is an important functional component in contemporary 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, which is widely used in various applicable machines, equipment and instruments. Larger load and impact resistance, and longer reliable working life are its most basic requirements. Mechanical bearings are divided into rolling bearings and sliding bearings according to the friction properties between moving elements, in heavy machinery equipment, the bearing is often combined with other mechanical parts to form a bearing device that can fix and limit the bearing and has certain environmental protection effect. When this bearing device is set at both ends of the rod body, it can not only fix and support the rod end, but also ensure the stable and low resistance operation of the rod body, which is collectively referred to as rod end bearing device. The pair of devices set at both ends of the rod body have slight structural differences due to the difference between the main drive and the driven function. The bearing device set at one end of the rod body and driven by external kinetic energy is the rod end driving bearing device, and the bearing device set at the other end of the rod body and driven by the rotating rod body is the rod end driven bearing device. Their common task is to coordinate operation, support and drive the rod body to run in a stable working state with limited speed.

[0003] The application relates to a rod end driving bearing device, which is an innovative product developed on the basis of an existing rod end driving bearing device. The existing rod end driving bearing device comprises a stator assembly, a rotating assembly, a lubricating bearing assembly, a front end power input driving component and a tail end kinetic energy output driving assembly. The stator assembly is fixedly arranged on the middle position of a main body, the rotating assembly is arranged on the periphery of the main body in an exposed state, and the lubricating bearing assembly is arranged between the stator assembly and the rotating assembly. In practice, it is found that the main bearing device with the structure has the following problems: in the initial running stage, the effect is acceptable, but with the increase of the use time, the long-term working stability is poor, the continuous reliable working life is short, and the device needs to be stopped for maintenance due to the non-uniform rotating speed and even the jamming during the working process. During the maintenance, it is found that the foreign matters are squeezed into the lubricating oil ring groove, sometimes the dirt is solidified in the lubricating oil groove, and the ball bearing cannot rotate, thereby seriously affecting the stable operation of the rod body, the operation process of the equipment, the construction efficiency and the construction cost. In addition, the rotating assembly is located on the outermost layer of the device main body and directly exposed to the air. The airflow generated by the high-speed rotation of the rotating assembly greatly interferes with the surrounding air. The airflow not only drives the environmental dust to fly, but also generates large noise, causes environmental pollution, and also causes safety hazards in the surrounding working environment. Therefore, the structure is not scientific and reasonable, the practical effect is not ideal, the daily maintenance workload is large, the use cost is high, and there are many problems such as environmental pollution and safety hazards. From the economic and practicality, the existing rod end driving bearing device is not ideal, and has become a big problem in the industry. Therefore, it is necessary to start from the scientific rationality of the structure to design and innovate, so that the device can meet the special requirements of high load, high efficiency, low cost and safe construction of heavy mechanized operation equipment in complex environments. SUMMARY

[0004] The application aims to overcome the shortcomings of the existing rod end driving bearing device, and provide a new rod end driving bearing device with a relatively scientific and reasonable structure, stable and safe operation, strong anti-pollution and anti-interference ability, low daily maintenance workload, high working stability, long service life, and high efficiency, low cost and continuous safe operation of the equipment in complex environments.

[0005] The application discloses a novel rod end driving bearing device, which comprises a stator assembly, a rotating assembly, a lubricating bearing assembly, a front end power input component and a tail end kinetic energy output driving component, characterized in that the stator assembly comprises an intermediate stator shaft, a positioning disc and a fixed shell, wherein the fixed shell is fixedly arranged on the outermost layer of the bearing device and is of a fixed exposed type; the rotating assembly is filled with a rotating sleeve and is movably arranged in a cavity between the intermediate stator shaft and the fixed shell and is of an internal type; the lubricating bearing assembly is arranged between the outer ring surface of the rotating sleeve and the inner ring surface of the fixed shell; the front end power input component is fixedly arranged on the peripheral ring surface of the front end of the rotating sleeve and comprises a bottom seat ring, a peripheral chain gear and a steel wire snap ring; the tail end kinetic energy output driving component is filled with an outer rotating cylinder which is composed of a seat ring provided with a rim convex ring and a catch pin extension hole and a rod end connecting sleeve used for being connected with a rod end; a buffer drainage assembly is additionally arranged at the joint between the stator assembly and the rotating assembly; wherein:

[0006] The positioning disc is in a stepped disc shape and comprises an inner side cylinder ring fixedly arranged on the peripheral ring surface of the front end of the intermediate stator shaft and a flat outer side disc continuously fixedly arranged on the periphery of the inner side cylinder ring; a ring-shaped limiting groove with a bottom part provided with a plurality of pin compression spring arrangement holes and an outer ring wall provided with a snap ring arrangement groove is fixedly arranged on the inner side end surface of the inner side cylinder ring; the outer side disc is provided with a plurality of anti-rotation screw holes fixedly arranged on the disc surface close to the inner side cylinder ring, and the outer disc surface is in a flat shape with the upper part being inwardly recessed and provided with a plurality of bolt limiting assembly holes A provided with fastening bolts A.

[0007] The fixed shell is in a special cylindrical shape and is composed of a lower cylinder, an intermediate functional cylinder and an upper cylinder ring; an oil injection hole is fixedly arranged on the cylinder wall of the lower cylinder, a plurality of bolt limiting installation holes B are fixedly arranged on the bottom end ring surface as needed, and a limiting snap convex is fixedly arranged on the inner side wall of the top end; the intermediate functional cylinder is fixedly arranged between the lower cylinder and the upper cylinder ring and comprises left and right supporting strips and chain working grooves filled in the space between the left and right supporting strips; a plurality of bolt limiting installation holes A corresponding to the bolt limiting assembly holes A are fixedly arranged on the top end surface of the upper cylinder ring;

[0008] The rotating sleeve is in a relatively long cylindrical shape and is movably arranged on the intermediate main body of the intermediate stator shaft with a small gap; the inner side ring surface of the front end is provided in an inwardly recessed stepped shape and is provided with a plurality of anti-rotation pin arrangement holes and a movable ring setting surface; a steel wire snap ring arrangement groove, the bottom seat ring and a limiting stop ring are sequentially fixedly arranged on the outer side ring surface close to the front end; a plurality of catch pin arrangement holes provided with limiting catch pins are fixedly arranged on the tail end cylinder ring surface.

[0009] The lubricating bearing assembly is arranged between the rotating drum sleeve and the fixed shell, mainly comprising front and rear lubricating oil ring grooves composed of an intermediate positioning valve inner ring arranged between a pair of inner ring groove rings respectively fixed on the outer ring surface of the rotating drum sleeve and an intermediate positioning valve outer ring arranged between a pair of outer ring groove rings and provided with an oil inlet hole communicated with an oil injection hole on the fixed shell, a ball bearing arranged in the front and rear lubricating oil ring grooves, an oil baffle disc arranged on the front end surface of the front and rear lubricating oil ring grooves and covered by the limiting lugs on the lower cylinder and the limiting baffle ring on the rotating drum sleeve, an inner baffle cover arranged on the tail end surface of the front and rear lubricating oil ring grooves and covered, a skeleton oil seal arranged on the inner side ring surface of the inner baffle cover, an outer baffle cover arranged on the outer ring surface of the inner baffle cover and the skeleton oil seal and covered by the fastening bolt B and the fixed shell bottom end, and a baffle ring arranged on the tail end outer periphery of the rotating drum sleeve and sleeved by the limiting snap ring;

[0010] The front end power input member has the function of accepting external motor kinetic energy and driving the rotating assembly to rotate synchronously around the intermediate stator shaft, and comprises a bottom seat ring held by the limiting baffle ring and fixed on the front end outer periphery ring surface of the rotating drum sleeve, a peripheral chain gear fixed on the bottom seat ring, and a steel wire snap ring arranged in the steel wire snap ring arrangement groove;

[0011] The tail end kinetic energy output driving member has the function of pulling the limiting rod end and outputting kinetic energy to drive the rod body to rotate, and the main body comprises an outer rotating drum composed of a rim protruding ring fixed on the ring surface, a plurality of seat rings with corresponding snap pin insertion holes fixed on the inner concave surface and corresponding to the limiting snap pins in the snap pin arrangement holes on the tail end ring surface of the rotating drum sleeve, and a rod end connecting sleeve connected with the rod end;

[0012] The buffer exhaust assembly mainly comprises a buffer dynamic ring limited by the O-shaped baffle ring and fixed on the dynamic ring arrangement surface, a buffer static ring arranged in the annular limiting groove and limited by the limiting baffle ring and the anti-channeling baffle ring, a anti-rotation pin fixed in the anti-rotation pin arrangement hole and having a top end flush with the inner ring surface of the buffer dynamic ring, and an outer exhaust groove composed of the gap between the bottom surface of the positioning disc and the front end power input member;

[0013] In the assembled state, the positioning disc fixing sleeve is arranged on the outer periphery of the front end of the intermediate stator shaft, is assembled and interconnected with the fixed shell as a whole through the fastening bolt A, and the bearing device body is fixedly connected with the external rack through the anti-rotation screw hole; the rotating assembly is arranged between the intermediate stator shaft and the fixed shell, the main body of the rotating assembly is movably sleeved on the outer periphery of the intermediate stator shaft, the outer ring surface of the rotating assembly is arranged between the inner ring surface of the fixed shell, the front end of the rotating assembly is provided with the front end power input member, and the tail end of the rotating assembly is connected with the outer rotating cylinder through the limiting snap pin and the anti-rotation connection, so as to form a main drive bearing device which is supported by the lubricating bearing assembly, rotates stably around the intermediate stator shaft, transmits kinetic energy to the rod body through the outer rotating cylinder, and can be separated from the rod body as required. The buffer dynamic ring and the buffer static ring in the buffer exhaust assembly are arranged in the inner side of the cylinder ring on the inner side of the positioning disc and the front end corner intersection of the rotating sleeve respectively, the anti-rotation pin is fixedly arranged on the side of the buffer dynamic ring, the top end surface of the anti-rotation pin is flush with the inner ring surface of the buffer dynamic ring, the anti-rotation pin has the function of blocking the buffer dynamic ring from moving and shifting, ensures the working reliability of the buffer exhaust assembly, and provides basic guarantee for the normal work of the ball bearing in the lubricating oil groove.

[0014] When working, the peripheral chain gear is driven by the chain connected with the external motor to drive the rotating assembly to rotate around the intermediate stator shaft in the fixed shell, without causing airflow pollution and noise interference to the surrounding environment; the centrifugal force generated by the high-speed rotating rotating assembly drives the strong suction force generated in the inner side of the gap at the intersection of the buffer dynamic ring and the buffer static ring, and the strong outward diffusion force generated on the outer side, so that part of the air containing dust or dirt around the bearing device is inevitably guided and sucked into the intersection, then passes through the gap and is extruded into the outer exhaust groove located above the lubricating oil groove, and then is rapidly diffused and discharged without resistance, so that the high-pressure stagnation above the lubricating oil groove is avoided, and the damage to the oil seal or the oil baffle, the extrusion into the lubricating oil groove and the influence on the normal working life of the bearing are avoided, and the uniform rotation of the rotating assembly is ensured, the kinetic energy is efficiently transmitted, and the basic guarantee is provided for the stable operation of the rod body and the stable, efficient, low-cost and continuous safe operation of the construction machinery equipment.

[0015] The rod end driving bearing device with novel structure based on the above concept is innovatively and comprehensively structured, the rotating assembly is internally arranged between the stator assembly components, the main housing of the bearing device is provided by the fixed housing in the stator assembly, the lubricating bearing assembly adopts a double oil groove structure which can significantly improve the bearing carrying capacity and fully meet the use requirements of the high-speed operation of the rod body, and the buffer discharge assembly is arranged at the joint of the stator assembly and the rotating assembly by using the principle of aerodynamics, the environmental dust or dirt which is inevitably sucked into the joint is scattered outward at a high speed under the guidance of the outer discharge groove after passing through the joint, so that the environmental dust or dirt entering the lubricating oil groove and affecting the normal operation of the bearing is effectively avoided, the bearing device has the characteristics of simple and scientific and reasonable structure, stable and reliable operation, long service life, small maintenance workload, safety and environmental protection and the like, can ensure the safe operation of the ball bearing in the lubricating oil groove, thereby ensuring the stable operation of the rod body, and also provides a basic guarantee for the efficient, low-cost, safe and pollution-free construction of the mechanical equipment using the bearing device, is a great innovation in the technical field, actually solves a big problem in the prior art, and is an ideal updated product of the existing rod end driving bearing device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a general structural schematic diagram of the embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of the fixed housing in the embodiment of the present application.

[0018] In the drawings:

[0019] 1. Stator assembly 11. Middle stator shaft 12. Positioning disc 121. Inner side cylinder ring 1211. Column pin compression spring installation hole 1212. Clasp ring installation groove 1213. Annular limiting groove 122. Peripheral disc 1221. Anti-rotation screw hole 1222. Fastening bolt A 1223. Bolt limiting assembly hole A

[0020] 13. Fixed housing 131. Lower cylinder 1311. Oil injection hole 1312. Bolt limiting installation hole B

[0021] 1313. Limiting card convex 132. Intermediate functional cylinder 1321. Left and right supporting strips 1322. Chain working groove 133. Upper cylinder ring 1331. Bolt limiting installation hole A 2. Rotation assembly 21. Rotary cylinder sleeve 211. Anti-rotation pin installation hole 212. Moving ring setting surface 213. Steel wire snap ring installation groove 214. Limiting check ring 215. Limiting card pin 216. Card pin installation hole 3. Lubricating bearing assembly 31. Front and back lubricating oil ring groove 311. Inner ring groove ring 3111. Intermediate positioning valve inner ring 312. Outer ring groove ring

[0022] 3121. Intermediate positioning valve outer ring 32. Ball bearing 33. Oil baffle 34. Inner cover 35. Skeleton oil seal 36. Bolt B 37. Outer cover 38. Limiting snap ring 39. Check ring 4. Front power input component 41. Bottom seat ring 42. Peripheral chain gear 43. Steel wire limiting snap ring

[0023] 5. Tail end kinetic energy output driving component 51. Seat ring 511. Edge convex ring 512. Card pin installation hole 52. Rod end connecting sleeve 6. Buffering and draining assembly 61. Buffering moving ring 611. O-shaped check ring 62. Buffering static ring 621. Limiting snap ring 622. Anti-channeling snap ring 623. Column pin compression spring 63. Anti-rotation pin 64. External drainage groove DETAILED DESCRIPTION

[0024] The application will be further described below in conjunction with the drawings and typical embodiments.

[0025] In Figure 1 and Figure 2 , the application is a novel structure of a rod end high-speed driving bearing device, the main body includes a stator assembly 1, a rotation assembly 2, a lubricating bearing assembly 3, a front power input component 4, and a tail end kinetic energy output driving component 5, characterized in that: the stator assembly 1 includes an intermediate stator shaft 11, a positioning disc 12, and a fixed shell 13, wherein the fixed shell 13 is fixedly arranged on the outermost layer of the bearing device, and is of a fixed exposed type; the rotation assembly 2 is filled by a rotary cylinder sleeve 21, and is movably arranged in the cavity between the intermediate stator shaft 11 and the fixed shell 13, and is of an internal type; the lubricating bearing assembly 3 is arranged between the outer ring surface of the rotary cylinder sleeve 21 and the inner ring surface of the fixed shell 13; the front power input component 4 is fixedly arranged on the peripheral ring surface of the front end of the rotary cylinder sleeve 21, and includes a bottom seat ring 41, a peripheral chain gear 42, and a steel wire snap ring 43; the tail end kinetic energy output driving component 5 is filled by an outer rotary cylinder composed of a seat ring 51 provided with an edge convex ring 511 and a card pin installation hole 512, and a rod end connecting sleeve 52 used for assembly connection with the rod end; a buffering and draining assembly 6 is additionally arranged at the joint between the stator assembly 1 and the rotation assembly 2; wherein:

[0026] The positioning disc 12 body is in a stepped disc shape, including an inner cylinder ring 121 fixedly sleeved on the outer peripheral surface of the front end of the intermediate stator shaft 11 and a flat outer disc 122 continuously and fixedly arranged on the periphery of the inner cylinder ring 121. An annular limiting groove 1213 with a bottom provided with a plurality of pin compression spring accommodation holes 1211 and a clamping ring accommodation groove 1212 fixedly arranged on the outer ring wall is arranged on the inner side end surface of the inner cylinder ring 121. The outer disc 122 has a plurality of anti-rotation screw holes 1221 fixedly arranged on the disc surface close to the inner cylinder ring 121, and the outer disc surface is arranged in a flat shape with an upper and lower inwardly recessed shape, and a plurality of bolt limiting assembly holes A 1223 provided with fastening bolts A 1222 are arranged on the upper surface as needed.

[0027] The fixed shell 13 body is in a special cylindrical shape, which is composed of a lower cylinder 131, a middle functional cylinder 132 and an upper cylinder ring 133. An oil injection hole 1311 is fixedly arranged on the cylinder wall of the lower cylinder 131, a plurality of bolt limiting mounting holes B 1312 are fixedly arranged on the bottom end ring surface as needed, and a limiting clamping protrusion 1313 is fixedly arranged on the top inner side wall. The middle functional cylinder 132 is fixedly arranged between the lower cylinder 131 and the upper cylinder ring 133, and includes left and right support strips 1321 and chain working grooves 1322 arranged in the space on both sides of the left and right support strips 1321. A plurality of bolt limiting mounting holes A 1331 corresponding to the bolt limiting assembly holes A 1223 are fixedly arranged on the top end surface of the upper cylinder ring 133.

[0028] The rotating drum sleeve 21 body is in a longer cylindrical shape, which is movably sleeved on the intermediate main body of the intermediate stator shaft 11 with a small gap. The front end inner ring surface is arranged in an inwardly recessed stepped shape, and is provided with a plurality of anti-rotation pin accommodation holes 211 and a movable ring setting surface 212. A steel wire clamping ring accommodation groove 213, the bottom seat ring 41 and a limiting check ring 214 are sequentially fixedly arranged on the proximal end outer ring surface. A plurality of clamping pin accommodation holes 216 provided with limiting clamping pins 215 are fixedly arranged on the tail end cylinder ring surface.

[0029] The lubricating bearing assembly 3 is arranged between the rotating drum sleeve 21 and the fixed shell 13, mainly comprising a front and rear lubricating oil ring groove 31 composed of a pair of inner ring groove rings 311 fixed on the outer ring surface of the rotating drum sleeve 21 respectively, an outer ring groove ring 312 fixed on the inner ring surface of the fixed shell 13 correspondingly, an intermediate positioning valve inner ring 3111 arranged between the inner ring groove rings 311, and an intermediate positioning valve outer ring 3121 arranged between the outer ring groove rings 312 and provided with an oil inlet hole communicated with the oil injection hole 1311 on the fixed shell 13, a ball bearing 32 arranged in the front and rear lubricating oil ring groove 31, an oil baffle 33 arranged on the front end surface of the front and rear lubricating oil ring groove 31 and covered by the limiting lug 1313 on the lower cylinder 131 and the limiting baffle ring 214 on the rotating drum sleeve 21, an inner baffle cover 34 arranged on the tail end surface of the front and rear lubricating oil ring groove 31, a skeleton oil seal 35 arranged on the inner side ring surface of the inner baffle cover 34, an outer baffle cover 37 arranged on the outer ring surface of the inner baffle cover 34 and the skeleton oil seal 35 and covered by the fastening bolt B 36 and the bottom end of the fixed shell 13, and a baffle ring 39 arranged on the tail end outer periphery of the rotating drum sleeve 21 and sleeved on the outer ring surface of the outer baffle cover 37 and limited by the limiting ring 38;

[0030] The front end power input member 4 has the function of accepting external motor power to drive the rotating assembly 2 to rotate synchronously around the intermediate stator shaft 11, comprising a bottom seat ring 41 held by the limiting baffle ring 214 and fixed on the front end outer peripheral ring surface of the rotating drum sleeve 21, a peripheral chain gear 42 fixed on the bottom seat ring 41, and a steel wire snap ring 43 arranged in the steel wire snap ring arrangement groove 213;

[0031] The tail end kinetic energy output driving member 5 has the function of pulling and limiting the rod end and outputting kinetic energy to drive the rod to rotate, and the main body comprises an outer rotating drum composed of a seat ring 51 provided with a rim protruding ring 511 on the ring surface and a plurality of card pin extension holes 512 corresponding to the limiting card pins 215 in the card pin arrangement holes 216 on the tail end ring surface of the rotating drum sleeve 21 fixed on the inner concave ring surface, and a rod end connecting sleeve 52 connected with the rod end;

[0032] The buffer exhaust assembly 6 mainly comprises a buffer dynamic ring 61 limited by an O-shaped baffle ring 611 and fixed on the dynamic ring arrangement surface 212, a buffer static ring 62 arranged in the annular limiting groove 1213 and limited by a limiting ring 621 and a anti-channeling snap ring 622, and held by a column pin compression spring 623, a anti-rotation pin 63 fixed in the anti-rotation pin arrangement hole 211 and having a top end flush with the inner ring surface of the buffer dynamic ring 61, and an outer exhaust groove 64 composed of the gap between the bottom surface of the positioning disc 12 and the front end power input member 4;

[0033] In the assembled state, the positioning disc 12 is fixedly sleeved on the front end of the intermediate stator shaft 11, is assembled and interconnected with the fixed shell 13 as a whole through the fastening bolt A 1222, and the bearing device body is fixedly connected and pulled with the external rack through the anti-rotation screw hole 1221; the rotating assembly 2 is arranged between the intermediate stator shaft 11 and the fixed shell 13, the main body of the rotating assembly 2 is movably sleeved on the outer periphery of the intermediate stator shaft 11, the outer ring surface of the rotating assembly 2 is arranged between the inner ring surface of the fixed shell 13, the front end of the rotating assembly 2 is fixedly provided with the front end power input member 4, the tail end of the rotating assembly 2 is connected with the outer rotating cylinder through the limiting snap pin 215, thereby forming a main drive bearing device which is supported by the lubricating bearing assembly 3 to stably rotate around the intermediate stator shaft 11, transmits kinetic energy to the rod body through the outer rotating cylinder, and can be separated from the rod body as required; the buffer dynamic ring 61 and the buffer static ring 62 in the buffer exhaust assembly 6 are arranged in the inner side of the cylinder ring 121 of the positioning disc 12 and the front end corner joint of the rotating cylinder sleeve 21 respectively, the anti-rotation pin 63 is fixedly arranged on the side of the buffer dynamic ring 61, the top end surface of the anti-rotation pin 63 is flush with the inner ring surface of the buffer dynamic ring 61, has the function of blocking the buffer dynamic ring 61 from moving and shifting, ensures the working reliability of the buffer exhaust assembly 6, and provides basic guarantee for the normal working of the ball bearing 32 in the lubricating oil groove.

[0034] In work, the peripheral chain gear 42 is driven by the chain connected with the external motor to drive the rotating assembly 2 to rotate around the intermediate stator shaft 11 in the fixed shell 13, without causing airflow pollution and noise interference to the surrounding environment; the centrifugal force generated by the high-speed rotating rotating assembly 2 drives the strong suction force generated in the gap between the buffer dynamic ring 61 and the buffer static ring 62, and the strong outward diffusion force generated on the outside, so that part of the air containing dust or dirt around the bearing device is inevitably guided and sucked into the joint, then passes through the gap, is extruded into the outer exhaust groove 64 located above the lubricating oil groove, and then is rapidly outwardly diffused without resistance, thereby avoiding the high-pressure stagnation above the lubricating oil groove due to no place to diffuse, and finally causing damage to the oil seal or the oil baffle, extruding into the lubricating oil groove, and affecting the normal working life of the bearing, and ensuring the uniform rotation of the rotating assembly 2, efficiently transmitting kinetic energy, and providing basic guarantee for the stable operation of the rod body and the stable, efficient, low-cost and continuous safe operation of the construction machinery and equipment.

Claims

1. A novel rod-end driven bearing device, comprising a stator assembly (1), a rotating assembly (2), a lubricating bearing assembly (3), a front-end power input component (4), and a rear-end kinetic energy output drive component (5), characterized in that: The stator assembly (1) includes an intermediate stator shaft (11), a positioning disk (12), and a fixed housing (13), wherein the fixed housing (13) is fixed on the outermost layer of the bearing device and is a fixed exposed type; the rotating assembly (2) is served by a rotating sleeve (21), which is movably concealed in the cavity between the intermediate stator shaft (11) and the fixed housing (13) and is an internal type; the lubricating bearing assembly (3) is disposed between the outer ring surface of the rotating sleeve (21) and the inner ring surface of the fixed housing (13); the front-end power input Component (4) is fixed on the outer ring surface of the front end of the rotating sleeve (21), and includes a bottom seat ring (41), an outer chain gear (42), and a wire retainer (43); the tail end kinetic energy output drive component (5) is composed of a seat ring (51) with an edge protrusion ring (511) and a retaining pin extension hole (512) and an outer rotating cylinder for connecting with the rod end; a buffer discharge component (6) is also added at the junction between the stator assembly (1) and the rotating assembly (2); wherein: The positioning disk (12) is a stepped disc in shape, comprising an inner cylindrical ring (121) fixedly sleeved on the outer ring surface of the front end of the intermediate stator shaft (11) and a flat outer disc (122) that continues to be fixed on the outer periphery of the inner cylindrical ring (121). On the inner end face of the inner cylindrical ring (121), there is a ring limiting groove (1213) with a number of pin compression spring mounting holes (1211) fixed at its bottom as needed, and a retaining ring mounting groove (1212) fixed on its outer ring wall. The outer disc (122) has a number of anti-rotation screw holes (1221) fixed on its disc surface close to the inner cylindrical ring (121). Its outer ring disc surface is flat with an inward shrinkage at the top and bottom, and there are a number of bolt limiting assembly holes A (1223) equipped with fastening bolts A (1222) as needed. The main body of the fixed housing (13) is a special cylindrical shape, which is composed of a lower cylinder (131), a middle functional cylinder (132) and an upper cylinder ring (133) interconnected. An oil injection hole (1311) is fixed on the cylinder wall of the lower cylinder (131), and a number of bolt limiting installation holes B (1312) are fixed on the bottom ring surface as needed. A limiting protrusion (1313) is fixed on the inner side wall of the top end. The middle functional cylinder (132) is fixed between the lower cylinder (131) and the upper cylinder ring (133), and includes left and right support bars (1321) and chain working grooves (1322) filled by the space on both sides of the left and right support bars (1321). On the top surface of the upper cylinder ring (133), a number of bolt limiting installation holes A (1331) are fixed and matched with the bolt limiting assembly holes A (1223). The main body of the rotating sleeve (21) is a long cylindrical shape. The movable small gap is sleeved on the middle body of the middle stator shaft (11). The inner ring surface of its front end is set in a concave stepped shape, and several anti-rotation pin placement holes (211) and moving ring setting surface (212) are provided on it. On the outer ring surface near the front end, the wire retaining ring placement groove (213), the bottom seat ring (41) and the limiting retaining ring (214) are fixed in sequence. On the cylindrical ring surface at its tail end, several retaining pin placement holes (216) with limiting retaining pins (215) are fixed in the center. The lubricated bearing assembly (3) is positioned between the rotating sleeve (21) and the fixed housing (13). It mainly comprises a pair of inner ring grooves (311) fixed to the outer ring surface of the rotating sleeve (21), and an outer ring groove (312) correspondingly fixed to the inner ring surface of the fixed housing (13). It also includes front and rear lubricating oil ring grooves (31) formed by an inner ring (3111) of an intermediate positioning valve positioned between the inner ring grooves (311) and an outer ring (3121) of an intermediate positioning valve positioned between the outer ring grooves (312) and having an oil inlet hole connected to the oil injection hole (1311) on the fixed housing (13). A ball bearing (32) is disposed within the front and rear lubricating oil ring grooves (31). The lower cylinder (131) is equipped with... The limiting protrusion (1313) and the limiting retaining ring (214) on the rotating sleeve (21) together limit and cover the oil baffle (33) on the front end face of the front and rear lubricating oil ring groove (31), the inner cap (34) on the rear end face of the front and rear lubricating oil ring groove (31), the skeleton oil seal (35) on the inner ring surface of the inner cap (34), the outer cap (37) on the outer ring surface of the inner cap (34) and the skeleton oil seal (35) is limited by fastening bolt B (36) and fixed to the bottom end of the fixed housing (13), and the retaining ring (39) on the outer ring surface of the rotating sleeve (21) is limited by the limiting ring (38) and sleeved around the rear end of the rotating sleeve (21). The aforementioned front-end power input component (4) has the function of receiving external motor kinetic energy to drive the rotating component (2) to rotate synchronously around the intermediate stator shaft (11), and includes a bottom seat ring (41) held by the aforementioned limiting retaining ring (214) and fixed on the outer ring surface of the front end of the rotating sleeve (21), an outer chain gear (42) fixed on the bottom seat ring (41), and a wire retaining ring (43) set in the wire retaining ring mounting groove (213); The tail end kinetic energy output drive component (5) has the functions of traction limiting rod end and outputting kinetic energy to drive the rod body to rotate. The main body is composed of an outer rotating cylinder consisting of a ring ring (511) with an edge protrusion ring (511) fixed on the ring surface, a seat ring (51) with a plurality of limiting pins (215) corresponding to the pin placement holes (216) on the tail end ring surface of the rotating sleeve (21) and a rod end connecting sleeve (52) for assembly and connection with the rod end. The buffer discharge assembly (6) mainly includes a buffer moving ring (61) limited by an O-ring (611) and fixed on the moving ring setting surface (212), a buffer stationary ring (62) blocked and limited by a limiting ring (621) and an anti-slip ring (622), and supported and limited by a compression spring (623) with a pin, and placed in the annular limiting groove (1213), an anti-rotation pin (63) fixed in the anti-rotation pin placement hole (211) with its top end flush with the inner annular surface of the buffer moving ring (61), and an external discharge groove (64) formed by the gap between the bottom surface of the positioning plate (12) and the front power input component (4); In the assembled state, the positioning disc (12) is fixedly sleeved around the front end of the intermediate stator shaft (11), and is integrated with the fixed housing (13) by fastening bolt A (1222). The bearing assembly body is fixedly and tractionly connected to the external frame through the anti-rotation screw hole (1221). The rotating component (2) is located between the intermediate stator shaft (11) and the fixed housing (13). Its main rotating sleeve (21) is movably sleeved around the intermediate stator shaft (11). The lubricating bearing assembly (3) is provided between its outer ring surface and the inner ring surface of the fixed housing (13). The front end of the assembly is fixedly provided with the front power input component (4), and its tail end is connected to the outer rotating sleeve through the limiting pin (215) for anti-rotation. Thus, a rotating assembly is formed by... The lubricating bearing assembly (3) supports the rotating sleeve (21) to rotate smoothly around the intermediate stator shaft (11), transmits kinetic energy to the rod through the outer rotating cylinder, and can also be disengaged from the rod as needed. The buffer moving ring (61) and buffer stationary ring (62) in the buffer drain assembly (6) are respectively set on the inner side of the inner cylinder ring (121) of the positioning disk (12) and at the junction of the front corner of the rotating sleeve (21). The anti-rotation pin (63) is fixed on the side of the buffer moving ring (61), and its top surface is flush with the inner ring surface of the buffer moving ring (61). It has the function of preventing the buffer moving ring (61) from moving and shifting, ensuring the working reliability of the buffer drain assembly (6), and providing a basic guarantee for the normal operation of the ball bearing (32) in the lubricating oil groove. During operation, the peripheral sprocket (42) is driven by a chain meshing with an external motor, causing the rotating assembly (2) to rotate around the central stator shaft (11) inside the fixed housing (13), without causing airflow pollution or noise interference to the surrounding environment. The high-speed rotating assembly (2) generates centrifugal force, creating a strong suction force inside the gap at the junction of the buffer moving ring (61) and the buffer stationary ring (62), and a strong outward dispersion force on the outside, inevitably causing some of the air containing dust or dirt around the bearing assembly to be expelled. The guide is drawn into the junction, then passes through the gap and is squeezed into the external discharge groove (64) located above the lubricating oil groove. Then it is discharged and dispersed rapidly without obstruction, thus avoiding the situation where high pressure stagnates above the lubricating oil groove due to nowhere to disperse, which would eventually damage the oil seal or oil baffle, squeeze into the lubricating oil groove, and affect the normal working life of the bearing. At the same time, it also ensures that the rotating component (2) rotates at a uniform speed and efficiently transmits kinetic energy, providing a basic guarantee for the smooth operation of the rod and the stable, efficient, low-cost, continuous and safe operation of construction machinery and equipment.

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