A high temperature bearing housing for fan transmission

Abstract

The present invention discloses a high-temperature bearing seat box for fan transmission, comprising: a base and a bearing box body arranged on the base, a rotating shaft is arranged in the bearing box body, two ends of the bearing box body are respectively connected with bearing box end covers by first locking screws, connecting keys are respectively arranged at two ends of the rotating shaft extending out of the bearing box end covers, two bearings are arranged between the bearing box body and the rotating shaft, the structure of the bearing comprises: a bearing inner ring, a bearing outer ring and a plurality of balls arranged between the bearing inner ring and the bearing outer ring, the bearing inner ring is connected to the rotating shaft, limiting rings matching with the bearing outer rings are respectively arranged in the bearing box body between the two bearings, a fixing ring matching with the bearing outer ring is arranged on the bearing box end cover, and an inner conical oil retaining ring and an inner vertical oil retaining ring connected to the inner conical oil retaining ring are arranged on the side of the bearing outer ring close to the bearing box end cover.

Description

Technical Field

[0001] The invention relates to a fan auxiliary device, in particular to a high-temperature bearing seat box for fan transmission. Background Art

[0002] The fan mainly drives the shaft to rotate through the motor, and the other end of the shaft is connected to the impeller, thereby driving the impeller to rotate. When the impeller rotates for a long time, a large amount of heat will be generated at the shaft and the shaft bearing. The heat dissipation method currently used is relatively simple and not targeted. It can only cool the entire bearing with air or water. The heat dissipation effect is poor. Working under high temperature for a long time will cause the fan bearing to wear faster and shorten its service life. At the same time, oil leakage from the fan bearing housing is also a common problem. Due to the high-speed rotation of the fan shaft, when the fan runs for a period of time, the lubricating oil will be brought into the shaft along with the inner ring and ball of the bearing, thereby splashing along the shaft and forming oil leakage, which is usually inevitable. It is difficult to prevent oil leakage by simply relying on the oil seal at the end cover of the bearing housing for sealing. Once the oil leaks, it will bring a certain degree of hindrance to production and manufacturing. The leaked oil often blocks the area around the leaked hole due to time problems. The dirt mixed with oil and various dust is difficult to remove and corrodes the bearing housing. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-temperature bearing seat box for fan transmission with good heat dissipation effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-temperature bearing seat box for fan transmission, comprising: a base and a bearing box body arranged on the base, a rotating shaft is arranged in the bearing box body, two ends of the bearing box body are respectively connected with bearing box end covers by first locking screws, connecting keys are respectively arranged at two ends of the rotating shaft extending out of the bearing box end covers, two bearings are arranged between the bearing box body and the rotating shaft, the structure of the bearing comprises: a bearing inner ring, a bearing outer ring and a plurality of balls arranged between the bearing inner ring and the bearing outer ring, the bearing inner ring is connected to the rotating shaft, limiting rings matching with the bearing outer rings are respectively arranged in the bearing box body between the two bearings, and the bearing box end covers are respectively arranged with retaining rings matching with the bearing outer rings. A matching fixing ring is provided, an inner conical oil retaining ring and an inner vertical oil retaining ring connected to the inner conical oil retaining ring are provided on the side of the bearing outer ring close to the bearing box end cover, an outer vertical oil retaining ring is slidably provided on the rotating shaft between the bearing and the bearing box end cover, an outer conical oil retaining ring that cooperates with the inner conical oil retaining ring is provided on the outer vertical oil retaining ring, a fixing plate is provided on the rotating shaft between the outer vertical oil retaining ring and the bearing box end cover, a spring is sleeved on the rotating shaft between the fixing plate and the outer vertical oil retaining ring, one end of the spring is abutted against the fixing plate, and the other end of the spring is abutted against the outer vertical oil retaining ring, a rotating oil mark and an oil drain bolt are provided at the lower end of the bearing box body between the two bearings, and an air discharge bolt is provided at the upper end of the bearing box body between the two bearings Bolts, a heat dissipation pipe is arranged in the bearing box between the two bearing outer rings, a water inlet and a water outlet which are interconnected with the heat dissipation pipe are arranged at the lower end of the bearing box, a plurality of annular heat dissipation fins are evenly arranged on the inner wall of the heat dissipation pipe, a plurality of through holes are evenly arranged on the annular heat dissipation fins, a cooling channel is arranged in the rotating shaft, plugs are arranged at both ends of the cooling channel, an annular heat-conducting cylinder is arranged on the rotating shaft in the cooling channel, a plurality of heat-conducting columns are evenly arranged in the rotating shaft between the annular heat-conducting cylinder and the bearing outer ring, one end of the heat-conducting column is connected to the heat-conducting cylinder, and the other end of the heat-conducting column is connected to the bearing outer ring, cooling end covers are respectively sleeved on both ends of the rotating shaft extending out of the bearing box end cover, and the cooling end The cover is connected to the bearing box end cover by a second locking screw, an outer annular cooling groove is arranged in the cooling end cover, an inner annular cooling groove cooperating with the outer annular cooling groove is arranged on the rotating shaft in the cooling end cover, a plurality of connecting channels are evenly arranged on the rotating shaft between the inner annular cooling groove and the cooling channel, one end of the connecting channel is interconnected with the cooling channel, and the other end of the connecting channel is interconnected with the inner annular cooling groove, an air inlet interconnected with the outer annular cooling groove is arranged on one of the cooling end covers, and an air outlet interconnected with the outer annular cooling groove is arranged on the other cooling end cover, a first annular oil seal is arranged between the bearing box end cover and the rotating shaft, and a second annular oil seal is arranged between the outer vertical oil retaining ring and the rotating shaft,A conical oil seal ring is arranged between the inner conical oil baffle ring and the outer conical oil baffle ring, and annular sealing plugs are symmetrically arranged between the cooling end covers and the rotating shaft on both sides of the outer annular cooling groove.

[0005] In order to better solve the above technical problems, a further technical solution adopted by the present invention is: the annular heat-conducting cylinder and the heat-conducting column are made of copper material.

[0006] The advantages of the present invention are: the above-mentioned high-temperature bearing seat box for fan transmission has a novel structure, and water cooling is used inside the engine oil to quickly dissipate the heat of the engine oil, the outer ring of the bearing and some balls. Air cooling is used inside the rotating shaft to quickly dissipate the heat of the rotating shaft, the inner ring of the bearing and the remaining balls. The combination of water cooling and air cooling can dissipate the heat of each specific heating part in the bearing box, with strong pertinence and good heat dissipation effect. At the same time, the outer conical oil retaining ring and the inner conical oil retaining ring are always offset, and the engine oil splashed by the main shaft can flow back between the two bearings again, which can prevent leakage from the end cover of the bearing box and effectively protect the bearing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The present invention is a schematic structural diagram of a high-temperature bearing seat box for fan transmission.

[0008] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0009] In the figure: 1, base, 2, bearing box, 3, rotating shaft, 4, first locking screw, 5, bearing box end cover, 6, bearing, 61, bearing inner ring, 62, bearing outer ring, 63, ball, 7, limit ring, 8, fixing ring, 9, inner conical oil retaining ring, 10, inner vertical oil retaining ring, 11, outer vertical oil retaining ring, 12, outer conical oil retaining ring, 13, fixing plate, 14, spring, 15, rotary oil mark, 16, oil drain bolt, 17, air bleed bolt, 18, heat dissipation pipe, 19, Water inlet, 20, water outlet, 21, annular heat sink, 22, through hole, 23, cooling channel, 24, plug, 25, annular heat-conducting cylinder, 26, heat-conducting column, 27, cooling end cover, 28, second locking screw, 29, outer annular cooling groove, 30, inner annular cooling groove, 31, connecting channel, 32, air inlet, 33, air outlet, 34, first annular oil seal, 35, second annular oil seal, 36, conical oil seal ring, 37, annular sealing plug, 38, engine oil level. DETAILED DESCRIPTION

[0010] The specific contents of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] like Figure 1 , Figure 2As shown, a high-temperature bearing seat box for fan transmission comprises: a base 1 and a bearing box body 2 arranged on the base 1, a rotating shaft 3 is arranged in the bearing box body 2, two ends of the bearing box body 2 are respectively connected with bearing box end covers 5 through first locking screws 4, connecting keys are respectively arranged at both ends of the rotating shaft 3 extending out of the bearing box end covers 5, two bearings 6 are arranged between the bearing box body 2 and the rotating shaft 3, the structure of the bearing 6 comprises: a bearing inner ring 61, a bearing outer ring 62 and a plurality of balls 63 arranged between the bearing inner ring 61 and the bearing outer ring 62, the bearing inner ring 61 is connected to the rotating shaft 3, and limiting rings 7 cooperating with the bearing outer ring 62 are respectively arranged in the bearing box body 2 between the two bearings 6, and the bearing outer ring 62 is provided with a plurality of balls 63 arranged between the bearing inner ring 61 and the bearing outer ring 62. A fixing ring 8 that cooperates with the bearing outer ring 62 is provided on the box end cover 5, an inner conical oil retaining ring 9 and an inner vertical oil retaining ring 10 connected to the inner conical oil retaining ring 9 are provided on the side of the bearing outer ring 62 close to the bearing box end cover 5, an outer vertical oil retaining ring 11 is slidably provided on the rotating shaft 3 between the bearing 6 and the bearing box end cover 5, an outer conical oil retaining ring 12 that cooperates with the inner conical oil retaining ring 9 is provided on the outer vertical oil retaining ring 11, a fixing plate 13 is provided on the rotating shaft 3 between the outer vertical oil retaining ring 11 and the bearing box end cover 5, a spring 14 is sleeved on the rotating shaft 3 between the fixing plate 13 and the outer vertical oil retaining ring 11, one end of the spring 14 is against the fixing plate 13, and the other end of the spring 14 is against the outer vertical oil retaining ring 11. The oil retaining ring 11 is against each other, a rotating oil mark 15 and an oil drain bolt 16 are arranged at the lower end of the bearing housing 2 between the two bearings 6, a bleed bolt 17 is arranged at the upper end of the bearing housing 2 between the two bearings 6, a heat dissipation pipe 18 is arranged in the bearing housing 2 between the two bearing outer rings 62, a water inlet 19 and a water outlet 20 which are interconnected with the heat dissipation pipe 18 are arranged at the lower end of the bearing housing 2, a plurality of annular heat dissipation fins 21 are evenly arranged on the inner wall of the heat dissipation pipe 18, a plurality of through holes 22 are evenly arranged on the annular heat dissipation fins 21, a cooling channel 23 is arranged in the rotating shaft 3, plugs 24 are arranged at both ends of the cooling channel 23, and an annular heat conduction is arranged on the rotating shaft 3 in the cooling channel 23. The cylinder 25, a plurality of heat-conducting columns 26 are evenly arranged in the rotating shaft 3 between the annular heat-conducting cylinder 25 and the bearing outer ring 62, one end of the heat-conducting column 26 is connected to the heat-conducting cylinder 25, and the other end of the heat-conducting column 26 is connected to the bearing outer ring 62, cooling end covers 27 are respectively sleeved on the two ends of the rotating shaft 3 extending out of the bearing box end cover 5, and the cooling end cover 27 is connected to the bearing box end cover 5 through a second locking screw 28, an outer annular cooling groove 29 is arranged in the cooling end cover 27, an inner annular cooling groove 30 that cooperates with the outer annular cooling groove 29 is arranged on the rotating shaft 3 in the cooling end cover 27, and a plurality of connecting channels 31 are evenly arranged on the rotating shaft 3 between the inner annular cooling groove 30 and the cooling channel 23,One end of the connecting channel 31 is interconnected with the cooling channel 23, and the other end of the connecting channel 31 is interconnected with the inner annular cooling groove 30. An air inlet 32 ​​interconnected with the outer annular cooling groove 29 is provided on one cooling end cover 27, and an air outlet 33 interconnected with the outer annular cooling groove 29 is provided on the other cooling end cover 27. A first annular oil seal 34 is provided between the bearing box end cover 5 and the rotating shaft 3, a second annular oil seal 35 is provided between the outer vertical oil retaining ring 11 and the rotating shaft 3, a conical oil seal ring 36 is provided between the inner conical oil retaining ring 9 and the outer conical oil retaining ring 12, and annular sealing plugs 37 are symmetrically provided between the cooling end covers 27 and the rotating shaft 3 on both sides of the outer annular cooling groove 29.

[0012] like Figure 1 As shown, in this embodiment, in order to achieve a better heat dissipation effect, the annular heat-conducting cylinder 25 and the heat-conducting column 26 are made of copper material.

[0013] During installation, the outer vertical oil baffle ring 11 can be pushed to slide on the rotating shaft 3 under the action of the spring 14, and the outer vertical oil baffle ring 11 drives the outer conical oil baffle ring 12 to abut against the inner conical oil baffle ring 9. The outer conical oil baffle ring 12 and the inner conical oil baffle ring 9 are tightly abutted by the conical oil seal ring 36. Even if the rotating shaft 3 rotates at a high speed and causes part of the oil to splash, the splashed oil can still flow back between the two bearings 6, which can effectively prevent the oil from leaking from between the two bearings 6. Connect the two ends of the rotating shaft 3 to the fan input through the connecting keys respectively. The shaft is connected to the driving device, the water inlet 19 and the water outlet 20 are connected to the cooling pool, and a water pump is added at the water inlet 19, and the air inlet 32 ​​and the air outlet 33 are connected to the air compressor, and the oil release bolt 16 is unscrewed to add engine oil into the bearing housing 2, and the engine oil level 38 is observed through the rotary oil mark 15 to ensure that the height of the engine oil level 38 is located in the middle of the gap between the lower end of the bearing inner ring 61 and the bearing outer ring 62. At this time, the lower end of the bearing outer ring 62, part of the ball 63 and the heat dissipation pipe 18 are immersed below the engine oil level.

[0014] During operation, the shaft 3 rotates at high speed to drive the bearing inner ring 61 to rotate, and the bearing inner ring 61 rolls at high speed in the bearing outer ring 62 through the ball 63. At this time, the bearing 6 will generate a lot of heat; since the lower end of the bearing outer ring 62 and part of the ball 63 are immersed below the engine oil level 38, the heat of the bearing outer ring 62 and the ball 63 will quickly dissipate into the engine oil to increase the engine oil temperature, and the increased engine oil temperature will be directly transferred to the heat dissipation pipe 18. Since a number of annular heat sinks 21 are evenly distributed in the heat dissipation pipe 18, the heat in the engine oil will be quickly absorbed by the heat dissipation pipe 18 and transferred to each annular heat sink 21. The water pump is started, and the cooling water flows back to the cooling pool through the water inlet 19, the heat dissipation pipe 18 and the water outlet 20 in turn. When the cooling water passes through the heat dissipation pipe 18, the heat on each annular heat sink 21 is quickly taken away, and the several through holes 22 on each annular heat sink 21 can further increase

[0015] The heat dissipation speed is fast. The annular heat sink 21 can continuously dissipate the high temperature generated in the engine oil, thereby achieving the effect of quickly dissipating the heat of the bearing outer ring 62, part of the balls 63 and the engine oil; at the same time, the heat generated by the bearing inner ring 61 and the remaining balls 63 is transferred to the annular heat-conducting cylinder 25 through a plurality of heat-conducting columns 26, and the heat generated on the rotating shaft 3 can also be quickly transferred to the annular heat-conducting cylinder 25. Start the air compressor, and the compressed air passes through the air inlet 32, the outer annular cooling groove 29 on one of the cooling end covers 27, the inner annular cooling groove 30 and the connecting channel 31 on one end of the rotating shaft 3, the cooling channel 23, the connecting channel 31 and the inner annular cooling groove 30 on the other end of the rotating shaft 3, the outer annular cooling groove 29 on the other cooling end cover 27, and the air outlet 33. The compressed air can quickly take away the heat on the annular heat-conducting cylinder 25, thereby achieving the effect of quickly dissipating the heat of the bearing inner ring 61, the remaining balls 63 and the rotating shaft 3.

[0016] The above-mentioned high-temperature bearing seat box for fan transmission has a novel structure. Water cooling is used inside the engine oil to quickly dissipate the heat of the engine oil, the outer ring of the bearing and some balls. Air cooling is used inside the rotating shaft to quickly dissipate the heat of the rotating shaft, the inner ring of the bearing and the remaining balls. The combination of water cooling and air cooling can dissipate the heat of each specific heating part in the bearing box, with strong pertinence and good heat dissipation effect. At the same time, the outer conical oil retaining ring and the inner conical oil retaining ring are always offset against each other. The engine oil splashed by the main shaft can flow back between the two bearings again, which can prevent leakage from the end cover of the bearing box and effectively protect the bearing box.

Claims

1. A high temperature bearing housing for fan transmission, characterized in that: include: A base (1) and a bearing housing (2) arranged on the base (1); a rotating shaft (3) is arranged in the bearing housing (2); bearing housing end covers (5) are connected to both ends of the bearing housing (2) via first locking screws (4); connecting keys are provided at both ends of the rotating shaft (3) extending out of the bearing housing end covers (5); two bearings (6) are arranged between the bearing housing (2) and the rotating shaft (3); the structure of the bearings (6) comprises: a bearing inner ring (61), a bearing outer ring (62), and a plurality of balls (63) arranged between the bearing inner ring (61) and the bearing outer ring (62); the bearing inner ring (61) is connected to the rotating shaft (3); the bearing housing (2) between the two bearings (6) is provided with a plurality of balls (63) arranged between the bearing inner ring (61) and the bearing outer ring (62); the bearing inner ring (61) is connected to the rotating shaft (3); and the bearing housing (2) between the two bearings (6) is provided with a plurality of balls (63) arranged between the bearing inner ring (61) and the bearing outer ring (62). ) are respectively provided with a limiting ring (7) which cooperates with the bearing outer ring (62); a fixing ring (8) which cooperates with the bearing outer ring (62) is provided on the bearing box end cover (5); an inner conical oil retaining ring (9) and an inner vertical oil retaining ring (10) connected to the inner conical oil retaining ring (9) are provided on the side of the bearing outer ring (62) close to the bearing box end cover (5); an outer vertical oil retaining ring (11) is slidably provided on the rotating shaft (3) between the bearing (6) and the bearing box end cover (5); an outer conical oil retaining ring (12) which cooperates with the inner conical oil retaining ring (9) is provided on the outer vertical oil retaining ring (11); and an inner vertical oil retaining ring (10) which cooperates with the inner conical oil retaining ring (9) is provided on the rotating shaft (3) between the outer vertical oil retaining ring (11) and the bearing box end cover (5). A fixed plate (13) is arranged, a spring (14) is sleeved on the rotating shaft (3) between the fixed plate (13) and the outer vertical oil retaining ring (11), one end of the spring (14) abuts against the fixed plate (13), and the other end of the spring (14) abuts against the outer vertical oil retaining ring (11), a rotary oil mark (15) and an oil drain bolt (16) are arranged at the lower end of the bearing housing (2) between the two bearings (6), a bleed bolt (17) is arranged at the upper end of the bearing housing (2) between the two bearings (6), a heat dissipation pipe (18) is arranged in the bearing housing (2) between the two bearing outer rings (62), and a water inlet (18) which is interconnected with the heat dissipation pipe (18) is arranged at the lower end of the bearing housing (2). 9) and a water outlet (20), a plurality of annular heat sinks (21) are evenly arranged on the inner wall of the heat dissipation pipe (18), a plurality of through holes (22) are evenly arranged on the annular heat sinks (21), a cooling channel (23) is arranged in the rotating shaft (3), plugs (24) are arranged at both ends of the cooling channel (23), an annular heat-conducting cylinder (25) is arranged on the rotating shaft (3) in the cooling channel (23), a plurality of heat-conducting columns (26) are evenly arranged in the rotating shaft (3) between the annular heat-conducting cylinder (25) and the bearing outer ring (62), one end of the heat-conducting column (26) is connected to the heat-conducting cylinder (25), and the other end of the heat-conducting column (26) is connected to the bearing outer ring (62),Cooling end covers (27) are respectively sleeved on both ends of the rotating shaft (3) extending out of the bearing box end cover (5); the cooling end cover (27) is connected to the bearing box end cover (5) via a second locking screw (28); an outer annular cooling groove (29) is provided in the cooling end cover (27); an inner annular cooling groove (30) cooperating with the outer annular cooling groove (29) is provided on the rotating shaft (3) in the cooling end cover (27); a plurality of connecting channels (31) are evenly provided on the rotating shaft (3) between the inner annular cooling groove (30) and the cooling channel (23); one end of the connecting channel (31) is communicated with the cooling channel (23); and the connecting channel (31) is connected to the cooling channel (23). The other end of the bearing housing (31) is interconnected with the inner annular cooling groove (30), an air inlet (32) interconnected with the outer annular cooling groove (29) is provided on one cooling end cover (27), an air outlet (33) interconnected with the outer annular cooling groove (29) is provided on the other cooling end cover (27), a first annular oil seal (34) is provided between the bearing housing end cover (5) and the rotating shaft (3), a second annular oil seal (35) is provided between the outer vertical oil retaining ring (11) and the rotating shaft (3), a conical oil seal ring (36) is provided between the inner conical oil retaining ring (9) and the outer conical oil retaining ring (12), and a plurality of conical oil seal rings (36) are provided on both sides of the outer annular cooling groove (29). An annular sealing plug (37) is symmetrically arranged between the cooling end cover (27) and the rotating shaft (3). The annular heat-conducting cylinder (25) and the heat-conducting column (26) are made of copper. When installed, the outer vertical oil retaining ring (11) can be pushed to slide on the rotating shaft (3) under the action of the spring (14). The outer vertical oil retaining ring (11) drives the outer conical oil retaining ring (12) to abut against the inner conical oil retaining ring (9). The outer conical oil retaining ring (12) and the inner conical oil retaining ring (9) are tightly abutted against each other through the conical oil sealing ring (36). Even if the rotating shaft (3) rotates at a high speed and causes some oil to splash, the splashed oil can still flow back between the two bearings (6), which can effectively prevent the oil from flowing from the two bearings (6). ); connect the two ends of the rotating shaft (3) to the fan input shaft and the driving device respectively through the connecting key, connect the water inlet (19) and the water outlet (20) to the cooling pool, and add a water pump at the water inlet (19), connect the air inlet (32) and the air outlet (33) to the air compressor, unscrew the oil release bolt (16) to add engine oil into the bearing housing (2), observe the engine oil level (38) through the rotary oil mark (15), and ensure that the engine oil level (38) is located in the middle of the gap between the bearing inner ring (61) and the lower end of the bearing outer ring (62). At this time, the lower end of the bearing outer ring (62), part of the ball (63) and the heat dissipation pipe (18) are immersed below the engine oil level.

Images