CN205047805U - Fan acceleration rate case and vice lubrication and cooling of spline washes structure thereof - Google Patents

Fan acceleration rate case and vice lubrication and cooling of spline washes structure thereof Download PDF

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Publication number
CN205047805U
CN205047805U CN201520467513.3U CN201520467513U CN205047805U CN 205047805 U CN205047805 U CN 205047805U CN 201520467513 U CN201520467513 U CN 201520467513U CN 205047805 U CN205047805 U CN 205047805U
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CN
China
Prior art keywords
ring
cover
sun gear
endoporus
gearwheel
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CN201520467513.3U
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Chinese (zh)
Inventor
乐永祥
蔡小亮
阙红波
熊雪梅
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CRRC Qishuyan Institute Co Ltd
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CRRC Qishuyan Institute Co Ltd
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Abstract

The utility model discloses a fan acceleration rate case and vice lubrication and cooling of spline washes structure thereof, it includes the sun gear to wash the structure, big gear bush, axle head ring sum cover end links, the external splines of sun gear is vice with big gear bush's internal spline engage formation spline, the axle head ring is including axle head ring body and outer backstop, the one end rigid coupling of axle head ring body and sun gear, form the annular between the lower wind direction terminal surface of outer backstop and sun gear, the cover end links includes flange, the cover end links body and interior backstop, the flange that keeps away from that interior backstop is located the ring body holds, flange is last to have the oil gallery, flange and big gear bush's one end rigid coupling, the oil feed chamber communicates with each other with the play oil pocket through the spline is vice, the oil -recovery tank that goes out on oil pocket and oil gallery and the cover end links body communicates with each other, the parallel level gear of box, one -level planetary gear train and second grade is drawn together to fan acceleration rate case and bag. The utility model discloses can promote vice lubrication of spline and cooling washing effect, proof strength, simple structure.

Description

The lubrication flushing mechanism of a kind of blower fan speedup box and spline pair thereof
Technical field
The utility model relates to the lubrication flushing mechanism of the connecting structure, particularly spline pair of a kind of blower fan speedup box and sun gear and gearwheel axle sleeve.
Background technique
Blower fan speedup box is the precision gear transmission case that a kind of required precision is high, reliability requirement is high.It is an important mechanical part in wind power generating set, be arranged on the mainframe of fan engine room, be used for connecting wheel hub main shaft and generator, its main function is that the transmission of power that produced under wind-force effect by wind wheel makes it obtain corresponding rotating speed to generator, it is the core apparatus in blower fan, required safe and reliable, durable in use, working life, General Requirements was 20 years.
Spline pair, as common connecting structure, is often used in powerful transmission system.Spline pair have high, the axially directed property of accuracy of alignment good, the features such as larger main moment of torsion, installing/dismounting be easy can be transmitted.But fretting wear, situation that heating value is large can be there is during spline pair work, therefore spline pair lubrication developing result to the life-span of spline pair and operational safety most important.
Sun gear and the gearwheel axle sleeve of blower fan speedup box generally connect with spline pair.That considers planetary stage all carries requirement, usually sun gear is designed to relocatable, which exasperates the fretting wear of spline pair, bring larger heating value.From wind power plant practical operation situation, splined pair lost efficacy and accounted for significant proportion in gearbox fault, current blower fan speedup box on the market also all considers lubricating oil path for sun gear and the connection of gearwheel axle sleeve spline pair, on sun gear and Large Gear Shaft During cover, generally process complicated oil-feed oil circuit and oil return circuit or increase disc and form oil circuit, and carry out axial limiting by the both ends of the surface of spline pair, but these scenario-frames are complicated, lubricate insufficient, manufacturing requires high, also can affect the intensity of sun gear and gearwheel axle sleeve simultaneously, reduce the safety and reliability that spline pair connects.
Be in the Chinese invention patent of CN103711885 at publication number, provide the lubricating and cooling method of a kind of blower fan speedup box sun gear and the connection of gearwheel axle sleeve spline pair.The upwind pressing plate of spline pair carries out spacing, forms a circle circumferential clearance oil-feed, devise boss spacing to wind direction under spline pair, and machined deep and long hole oil return inside gearwheel inner hole of shaft sleeve on Large Gear Shaft During cover in the middle of pressing plate and sun gear.Although this design defines effective lubricating oil path, but its oil-feed oil circuit is because by upwind bearing size, hollow core cable pipe size, the restriction of thickness of compressive plate and sun gear requirement of strength, oil-feed space is in fact very limited, may not fully oil-feed, concrete reason is this oil-feed space is jointly be made up of sun gear cylindrical and pressing plate endoporus, hollow core cable pipe be from sun gear endoporus through and hollow tubular outside dimension to be overall design given, consider sun gear load bearing requirements thus define the minimum dimension of sun gear external diameter, when brearing bore size one timing, oil-feed space is just determined, increase a baffle plate and will sacrifice very large oil-feed space, also limit lubricant housings and lubrication effect with the end face of wind direction up and down of pressing plate and the spacing spline pair of boss, spline pair end face is had some setbacks by the position lubricant oil circulation that pressing plate and boss block, and along with working time increases, wearing and tearing increase, and affect also all the more obvious simultaneously, during the end face of wind direction up and down with pressing plate and the spacing spline pair of boss, the length of interior external splines will be limited, Large Gear Shaft During puts the oil return of processing deep and long hole in addition can affect its intensity, particularly fatigue strength on the one hand, and tiltedly the processing of deep and long hole is also very complicated on the other hand.
Summary of the invention
The purpose of this utility model is to provide a kind of and can promotes spline pair lubrication and cooling developing result, ensures sun gear and gearwheel axle sleeve intensity and the lubrication flushing mechanism of the simple sun gear of structure and gearwheel axle sleeve spline pair and adopt the blower fan speedup box of this structure.
In order to achieve the above object, the technical solution of the utility model is: the lubrication flushing mechanism of a kind of sun gear and gearwheel axle sleeve spline pair, comprise sun gear, gearwheel axle sleeve, axle head ring and cover end ring, described sun gear be inserted in the endoporus of gearwheel axle sleeve with a section of external splines, the external splines of sun gear engages with the internal spline of gearwheel axle sleeve and forms spline pair, described axle head ring comprises axle head ring body and outer backstop, axle head ring has axle head ring endoporus, described axle head ring body is fixedly connected with the lower wind direction end of sun gear, annular groove is formed between described outer backstop and the lower wind direction end face of sun gear, described cover end ring comprises adpting flange, cover end ring body and interior backstop, cover end ring has cover end ring endoporus, described interior backstop be positioned at ring body away from adpting flange end, cover end ring body has oil-return groove, oil-return groove communicates with cover end ring endoporus, described adpting flange has spill port, described adpting flange is fixedly connected with the lower wind direction end of gearwheel axle sleeve, described interior backstop is arranged in annular groove, described sun gear overlaps at the cylindrical of external splines upwind and Large Gear Shaft During and form oil suction chamber between the endoporus of internal spline upwind, on described sun gear and under external splines the cylindrical of wind direction and the cylindrical of cover end ring body and Large Gear Shaft During overlap and under internal spline wind direction endoporus between form out oil pocket, described oil suction chamber by spline pair with go out oil pocket and communicate, described go out oil pocket communicate with the cover spill port of end ring and oil-return groove, the endoporus of described sun gear and the axle head ring endoporus of axle head ring and the cover end ring endoporus overlapping end ring communicate.
On described sun gear and the outside diameter being positioned at external splines upwind is less than the root diameter of external splines, the outside diameter of wind direction is less than the root diameter of external splines on sun gear and under being positioned at external splines; Described Large Gear Shaft During puts and the diameter of bore being positioned at internal spline upwind is greater than the root diameter of internal spline, gearwheel axle sleeve and under being positioned at internal spline the diameter of bore of wind direction be greater than the root diameter of internal spline; The outside diameter of described axle head ring to be less than on sun gear and the outside diameter of wind direction under being positioned at external splines, and the outside diameter of the cover end ring body of described cover end ring to be not more than on sun gear and the outside diameter of wind direction under being positioned at external splines.
The axle head ring diameter of bore of described axle head ring is greater than the diameter of bore of sun gear.
The interior backstop width of described cover end ring is at least less than the 0.5mm of annular groove width.
The axle head ring body of described axle head ring has multiple attachment hole, and the lower wind direction end face of described sun gear has tapped hole, and described axle head ring body is coordinated by screw with corresponding attachment hole, tapped hole and is fixedly connected with the lower wind direction end of sun gear.
The axle head ring body of described axle head ring have 16 ~ 24 attachment holes.
The cover end ring body of described cover end ring has multiple oil-return groove along the circumferential direction distributed, adpting flange have multiple spill port of along the circumferential direction distributing and multiple flange connecting hole along the circumferential direction distributed, the lower wind direction end face of described gearwheel axle sleeve has screw hole, and described adpting flange is coordinated by multiple attachment screw with corresponding flange connecting hole, screw hole and is fixedly connected with the lower wind direction end of gearwheel axle sleeve.
Spill port on described cover end ring and oil-return groove are interspersed, and the sectional area sum of all spill ports and oil-return groove is greater than the maximum secting area of oil pocket.
The cover end ring body of described cover end ring has 8 ~ 12 oil-return grooves, adpting flange has 8 ~ 12 spill ports and 16 ~ 24 flange connecting holes.
A kind of blower fan speedup box adopting the lubrication flushing mechanism of sun gear described in above-mentioned any one and gearwheel axle sleeve spline pair, comprise casing, primary planet train and secondary parallel stage gear, described primary planet train comprises sun gear, planet carrier, planet wheel and gear ring, one end of described sun gear and planet wheel engagement, the other end is connected by spline pair with gearwheel axle sleeve, described secondary parallel stage gear comprises gearwheel and small gear, gearwheel and small gear engagement, described gearwheel and gearwheel axle sleeve are by interference or flat key tight joint, also comprise axle head ring and cover end ring, described sun gear be inserted in the endoporus of gearwheel axle sleeve with a section of external splines, the external splines of sun gear engages with the internal spline of gearwheel axle sleeve and forms spline pair, described axle head ring comprises axle head ring body and outer backstop, axle head ring has axle head ring endoporus, described axle head ring body is fixedly connected with the lower wind direction end of sun gear, annular groove is formed between described outer backstop and the lower wind direction end face of sun gear, described cover end ring comprises adpting flange, cover end ring body and interior backstop, cover end ring has cover end ring endoporus, described interior backstop be positioned at ring body away from adpting flange end, cover end ring body has oil-return groove, oil-return groove communicates with cover end ring endoporus, described adpting flange has spill port, described adpting flange is fixedly connected with the lower wind direction end of gearwheel axle sleeve, described interior backstop is arranged in annular groove, described sun gear overlaps at the cylindrical of external splines upwind and Large Gear Shaft During and form oil suction chamber between the endoporus of internal spline upwind, on described sun gear and under external splines the cylindrical of wind direction and the cylindrical of cover end ring body and Large Gear Shaft During overlap and under internal spline wind direction endoporus between form out oil pocket, described oil suction chamber by spline pair with go out oil pocket and communicate, described go out oil pocket communicate with the cover spill port of end ring and oil-return groove, the endoporus of described sun gear and the axle head ring endoporus of axle head ring and the cover end ring endoporus overlapping end ring communicate.
Described small gear is in transmission connection three grades of parallel stage gears again.
Described gearwheel and gearwheel axle sleeve are made of one.
After adopting said structure, the utility model has the following advantages:
1) oil suction chamber, to go out oil pocket, spill port and oil-return groove reasonable in design, whole oil circuit is unobstructed, and spline pair wear particle or other impurity easily rinse out, and spline lubrication cooling developing result is good;
2) do not need to carry out spacing to the both ends of the surface of the upper and lower wind direction of spline, therefore, lubricant housings is abundant; Internal external splines length whether equal or who long who shortly not require, spline design is more flexible;
3) do not need to increase oilhole, oil groove etc. on the sun gear and Large Gear Shaft During cover of the main moment of torsion of carrying, ensure that its intensity;
4) structure is simple, and manufacture difficulty is low, and reliability is high.
Accompanying drawing explanation
The embodiment provided below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is the schematic diagram of the lubrication flushing mechanism of blower fan speedup box inner sun wheel of the present utility model and gearwheel axle sleeve spline pair.
Fig. 2 is the structural representation of the axle head ring in Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the stereogram of Fig. 2;
Fig. 5 is the structural representation of the cover end ring in Fig. 1;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the stereogram of Fig. 5;
Fig. 8 is the shape assumption diagram of blower fan speedup box of the present utility model;
Fig. 9 is the left view of Fig. 8;
Figure 10 is Fig. 8 interior section structural representation.
Embodiment
As Fig. 1, 2, 3, 4, 5, 6, shown in 7, the lubrication flushing mechanism of a kind of sun gear of the present utility model and gearwheel axle sleeve spline pair, comprise sun gear 1, gearwheel axle sleeve 2, axle head ring 3 and cover end ring 4, described sun gear 1 be inserted in the endoporus of gearwheel axle sleeve 2 with a section of external splines 1-1, the external splines 1-1 of sun gear 1 engages with the internal spline 2-1 of gearwheel axle sleeve 2 and forms spline pair, described axle head ring 3 comprises axle head ring body 3-1 and outer backstop 3-2, axle head ring 3 has axle head ring endoporus 3-3, described axle head ring body 3-1 is fixedly connected with the lower wind direction end of sun gear 1, annular groove 11 is formed between described outer backstop 3-2 and the lower wind direction end face of sun gear 1, described cover end ring 4 comprises adpting flange 4-1, cover end ring body 4-2 and interior backstop 4-3, cover end ring 4 has cover end ring endoporus 4-4, described interior backstop 4-3 is positioned at holding away from adpting flange 4-1 of ring body 4-2, cover end ring body 4-2 has oil-return groove 5, oil-return groove 5 communicates with cover end ring endoporus 4-4, described adpting flange 4-1 has spill port 6, described adpting flange 4-1 is fixedly connected with the lower wind direction end of gearwheel axle sleeve 2, described interior backstop 4-3 is arranged in annular groove 11, oil suction chamber 8 is formed on described sun gear 1 and on the cylindrical 1-3 and gearwheel axle sleeve 2 of external splines 1-1 upwind between the gearwheel axle sleeve first endoporus 2-3 of internal spline 2-1 upwind, on described sun gear 1 and under external splines 1-1 on the cylindrical 1-4 of wind direction and the cylindrical 4-5 of cover end ring body 4-2 and gearwheel axle sleeve 2 and under internal spline 2-1 wind direction gearwheel axle sleeve second endoporus 2-4 between form out oil pocket 7, described oil suction chamber 8 by spline pair with go out oil pocket 7 and communicate, described go out oil pocket 7 communicate with the cover spill port 6 of end ring 4 and oil-return groove 5, the endoporus 1-5 of described sun gear 1 and the axle head ring endoporus 3-3 of axle head ring 3 and the cover end ring endoporus 4-4 overlapping end ring 4 communicate.
As shown in Figure 1, on described sun gear 1 and the sun gear first cylindrical 1-3 diameter being positioned at external splines 1-1 upwind is less than the root diameter of external splines 1-1, the sun gear second cylindrical 1-4 diameter of wind direction is less than the root diameter of external splines 1-1 on sun gear 1 and under being positioned at external splines 1-1; On described gearwheel axle sleeve 2 and the gearwheel axle sleeve first endoporus 2-3 diameter being positioned at internal spline 2-1 upwind is greater than the root diameter of internal spline 2-1, gearwheel axle sleeve 2 and under being positioned at internal spline 2-1 the gearwheel axle sleeve second endoporus 2-4 diameter of wind direction be greater than the root diameter of internal spline 2-1; The outside diameter of described axle head ring 3 to be less than on sun gear 1 and the cylindrical 1-4 diameter of wind direction under being positioned at external splines 1-1, the cylindrical 4-5 diameter of the cover end ring body 4-2 of described cover end ring 4 to be not more than on sun gear 1 and the cylindrical 1-4 diameter of wind direction under being positioned at external splines 1-1, and oil circuit is more unobstructed.
As shown in Figure 1, the axle head ring endoporus 3-3 diameter of described axle head ring 3 is greater than the endoporus 1-5 diameter of sun gear 1.Like this, can guarantee blower fan hollow core cable pipe by.
As shown in Fig. 1,5,7, the interior backstop 4-3 width of described cover end ring 4 is at least less than the 0.5mm of annular groove 11 width, and sun gear can.
As shown in Figure 1,2,3, 4, the axle head ring body 3-1 of described axle head ring 3 has multiple attachment hole 3-4, the lower wind direction end face of described sun gear 1 has tapped hole 1-2, and described axle head ring body 3-1 is coordinated by screw 9 with corresponding attachment hole 3-4, tapped hole 1-2 and is fixedly connected with the lower wind direction end of sun gear 1.
As shown in Figure 2,3, 4, the axle head ring body 3-1 of described axle head ring 3 have 16 ~ 24 attachment hole 3-4.
As shown in Fig. 1,5,6,7, the cover end ring body 4-2 of described cover end ring 4 has multiple oil-return groove 5 along the circumferential direction distributed, adpting flange 4-1 have multiple spill port 6 of along the circumferential direction distributing and multiple flange connecting hole 4-6 along the circumferential direction distributed, the lower wind direction end face of described gearwheel axle sleeve 2 has screw hole 2-2, and described adpting flange 4-1 is coordinated by multiple attachment screw 10 with corresponding flange connecting hole 4-6, screw hole 2-2 and is fixedly connected with the lower wind direction end of gearwheel axle sleeve 2.
As shown in Fig. 1,5,6,7, the spill port 6 on described cover end ring 4 and oil-return groove 5 are interspersed, and the sectional area sum of all spill ports 6 and oil-return groove 5 is greater than the maximum secting area of oil pocket 7, and oil return is unobstructed.
As shown in Fig. 1,5,6,7, the cover end ring body 4-2 of described cover end ring 4 has 8 ~ 12 oil-return grooves 5, can be rectangle, circle or other shape, adpting flange 4-1 has 8 ~ 12 spill ports 6 and 16 ~ 24 flange connecting hole 4-6.
As shown in Figure 1, when the utility model uses, lubricant oil flow into out oil pocket 7 by spline pair after oil suction chamber 8 enters, a part is flowed out by the multiple spill ports 6 on cover end ring 4, a part is flowed out by the multiple oil-return grooves 5 on cover end ring 4, and lubricant oil flows to the double-head arrow dotted line signal seen in Fig. 1.
As Fig. 8, 9, 10, 1, 2, 3, 4, 5, 6, shown in 7, a kind of blower fan speedup box adopting the lubrication flushing mechanism of sun gear described in above-mentioned any one and gearwheel axle sleeve spline pair, comprise casing 17, primary planet train and secondary parallel stage gear, described primary planet train comprises sun gear 1, planet carrier 12, planet wheel 13 and gear ring 14, one end and the planet wheel 13 of described sun gear 1 engage, the other end is connected by spline pair with gearwheel axle sleeve 2, described secondary parallel stage gear comprises gearwheel 15 and small gear 16, gearwheel 15 and small gear 16 engage, described gearwheel 15 and gearwheel axle sleeve 2 are by interference or flat key tight joint, also comprise axle head ring 3 and cover end ring 4, described sun gear 1 be inserted in the endoporus of gearwheel axle sleeve 2 with a section of external splines 1-1, the external splines 1-1 of sun gear 1 engages with the internal spline 2-1 of gearwheel axle sleeve 2 and forms spline pair, described axle head ring 3 comprises axle head ring body 3-1 and outer backstop 3-2, axle head ring 3 has axle head ring endoporus 3-3, described axle head ring body 3-1 is fixedly connected with the lower wind direction end of sun gear 1, annular groove 11 is formed between described outer backstop 3-2 and the lower wind direction end face of sun gear 1, described cover end ring 4 comprises adpting flange 4-1, cover end ring body 4-2 and interior backstop 4-3, cover end ring 4 has cover end ring endoporus 4-4, described interior backstop 4-3 is positioned at holding away from adpting flange 4-1 of ring body 4-2, cover end ring body 4-2 has oil-return groove 5, oil-return groove 5 communicates with cover end ring endoporus 4-4, described adpting flange 4-1 has spill port 6, described adpting flange 4-1 is fixedly connected with the lower wind direction end of gearwheel axle sleeve 2, described interior backstop 4-3 is arranged in annular groove 11, oil suction chamber 8 is formed on described sun gear 1 and on the cylindrical 1-3 and gearwheel axle sleeve 2 of external splines 1-1 upwind between the gearwheel axle sleeve first endoporus 2-3 of internal spline 2-1 upwind, on described sun gear 1 and under external splines 1-1 on the cylindrical 1-4 of wind direction and the cylindrical 4-5 of cover end ring body 4-2 and gearwheel axle sleeve 2 and under internal spline 2-1 wind direction gearwheel axle sleeve second endoporus 2-4 between form out oil pocket 7, described oil suction chamber 8 by spline pair with go out oil pocket 7 and communicate, described go out oil pocket 7 communicate with the cover spill port 6 of end ring 4 and oil-return groove 5, the endoporus 1-5 of described sun gear 1 and the axle head ring endoporus 3-3 of axle head ring 3 and the cover end ring endoporus 4-4 overlapping end ring 4 communicate.
As shown in Figure 10, described small gear 16 is in transmission connection three grades of parallel stage gears again.
As shown in Figure 10, described gearwheel 15 and gearwheel axle sleeve 2 can be made of one.
As shown in Figure 10, during blower fan speedup box running of the present utility model, blower fan main shaft drives planet carrier 12 to rotate, planet carrier 12 drives the planet wheel 13 be arranged on above it, planet wheel 13 forms interior outer gearing respectively and drives sun gear 1 to rotate with gear ring 14, sun gear 1, sun gear 1 drives gearwheel axle sleeve 2 and gearwheel 15 to rotate by spline pair 1-1,2-1, gearwheel 15 and small gear 16 form outer gearing and drive small gear 16 to rotate, drive three grades of parallel stage gear pairs by small gear 16 again, form three grades of speedups.Wherein gear ring 14 and casing 17 are connected with bolt.Lubricant oil flows to the double-head arrow dotted line signal seen in Figure 10.

Claims (12)

1. a lubrication flushing mechanism for spline pair, is characterized in that:
A, comprise sun gear (1), gearwheel axle sleeve (2), axle head ring (3) and cover end ring (4),
B, described sun gear (1) be inserted in the endoporus of gearwheel axle sleeve (2) with a section of external splines (1-1), the external splines (1-1) of sun gear (1) engages with the internal spline (2-1) of gearwheel axle sleeve (2) and forms spline pair,
C, described axle head ring (3) comprise axle head ring body (3-1) and outer backstop (3-2), axle head ring (3) has axle head ring endoporus (3-3), described axle head ring body (3-1) is fixedly connected with the lower wind direction end of sun gear (1), annular groove (11) is formed between described outer backstop (3-2) and the lower wind direction end face of sun gear (1)
D, described cover end ring (4) comprises adpting flange (4-1), cover end ring body (4-2) and interior backstop (4-3), cover end ring (4) has cover end ring endoporus (4-4), described interior backstop (4-3) is positioned at holding away from adpting flange (4-1) of ring body (4-2), cover end ring body (4-2) has oil-return groove (5), oil-return groove (5) communicates with cover end ring endoporus (4-4), described adpting flange (4-1) has spill port (6), described adpting flange (4-1) is fixedly connected with the lower wind direction end of gearwheel axle sleeve (2), described interior backstop (4-3) is arranged in annular groove (11),
Upper and the cylindrical (1-3) being positioned at external splines (1-1) upwind of e, described sun gear (1) is gone up with gearwheel axle sleeve (2) and is positioned between the endoporus (2-3) of internal spline (2-1) upwind and forms oil suction chamber (8), on the upper and cylindrical (4-5) of cylindrical (1-4) that is wind direction under being positioned at external splines (1-1) and cover end ring body (4-2) of described sun gear (1) and gearwheel axle sleeve (2) and under being positioned at internal spline (2-1) wind direction endoporus (2-4) between form out oil pocket (7)
F, described oil suction chamber (8) by spline pair with go out oil pocket (7) and communicate, described go out the spill port (6) of oil pocket (7) and cover end ring (4) and oil-return groove (5) communicate, the endoporus (1-5) of described sun gear (1) and the axle head ring endoporus (3-3) of axle head ring (3) and the cover end ring endoporus (4-4) overlapping end ring (4) communicate.
2. the lubrication flushing mechanism of spline pair according to claim 1, it is characterized in that: upper and cylindrical (1-3) diameter being positioned at external splines (1-1) upwind of described sun gear (1) is less than the root diameter of external splines (1-1), sun gear (1) upper and under being positioned at external splines (1-1) cylindrical (1-4) diameter of wind direction be less than the root diameter of external splines (1-1); Upper and endoporus (2-3) diameter being positioned at internal spline (2-1) upwind of described gearwheel axle sleeve (2) is greater than the root diameter of internal spline (2-1), gearwheel axle sleeve (2) upper and under being positioned at internal spline (2-1) endoporus (2-4) diameter of wind direction be greater than the root diameter of internal spline (2-1); The outside diameter of described axle head ring (3) is less than upper and cylindrical (1-4) diameter that is wind direction under being positioned at external splines (1-1) of sun gear (1), and cylindrical (4-5) diameter of the cover end ring body (4-2) of described cover end ring (4) is not more than upper and cylindrical (1-4) diameter that is wind direction under being positioned at external splines (1-1) of sun gear (1).
3. the lubrication flushing mechanism of spline pair according to claim 1, is characterized in that: axle head ring endoporus (3-3) diameter of described axle head ring (3) is greater than endoporus (1-5) diameter of sun gear (1).
4. the lubrication flushing mechanism of spline pair according to claim 1, is characterized in that: interior backstop (4-3) width of described cover end ring (4) is at least less than the 0.5mm of annular groove (11) width.
5. the lubrication flushing mechanism of spline pair according to claim 1, it is characterized in that: the axle head ring body (3-1) of described axle head ring (3) has multiple attachment hole (3-4), the lower wind direction end face of described sun gear (1) has tapped hole (1-2), and described axle head ring body (3-1) is coordinated by screw (9) with corresponding attachment hole (3-4), tapped hole (1-2) and is fixedly connected with the lower wind direction end of sun gear (1).
6. the lubrication flushing mechanism of spline pair according to claim 5, is characterized in that: the axle head ring body (3-1) of described axle head ring (3) has 16 ~ 24 attachment holes (3-4).
7. spline pair lubrication flushing mechanism according to claim 1, it is characterized in that: the cover end ring body (4-2) of described cover end ring (4) has multiple oil-return groove (5) along the circumferential direction distributed, adpting flange (4-1) have multiple spill port (6) of along the circumferential direction distributing and multiple flange connecting hole (4-6) along the circumferential direction distributed, the lower wind direction end face of described gearwheel axle sleeve (2) has screw hole (2-2), described adpting flange (4-1) is by multiple attachment screw (10) and corresponding flange connecting hole (4-6), screw hole (2-2) coordinates and is fixedly connected with the lower wind direction end of gearwheel axle sleeve (2).
8. the lubrication flushing mechanism of spline pair according to claim 7, it is characterized in that: the spill port (6) on described cover end ring (4) and oil-return groove (5) are interspersed, the sectional area sum of all spill ports (6) and oil-return groove (5) is greater than the maximum secting area of oil pocket (7).
9. the lubrication flushing mechanism of spline pair according to claim 7, it is characterized in that: the cover end ring body (4-2) of described cover end ring (4) has 8 ~ 12 oil-return grooves (5) adpting flange (4-1) having 8 ~ 12 spill ports (6) and 16 ~ 24 flange connecting holes (4-6).
10. a blower fan speedup box, comprise casing (17), primary planet train and secondary parallel stage gear, described primary planet train comprises sun gear (1), planet carrier (12), planet wheel (13) and gear ring (14), one end of described sun gear (1) and planet wheel (13) engagement, the other end is connected by spline pair with gearwheel axle sleeve (2), described secondary parallel stage gear comprises gearwheel (15) and small gear (16), gearwheel (15) and small gear (16) engagement, described gearwheel (15) and gearwheel axle sleeve (2) are by interference or flat key tight joint, it is characterized in that:
A, also comprise axle head ring (3) and cover end ring (4),
B, described sun gear (1) be inserted in the endoporus of gearwheel axle sleeve (2) with a section of external splines (1-1), the external splines (1-1) of sun gear (1) engages with the internal spline (2-1) of gearwheel axle sleeve (2) and forms spline pair,
C, described axle head ring (3) comprise axle head ring body (3-1) and outer backstop (3-2), axle head ring (3) has axle head ring endoporus (3-3), described axle head ring body (3-1) is fixedly connected with the lower wind direction end of sun gear (1), annular groove (11) is formed between described outer backstop (3-2) and the lower wind direction end face of sun gear (1)
D, described cover end ring (4) comprises adpting flange (4-1), cover end ring body (4-2) and interior backstop (4-3), cover end ring (4) has cover end ring endoporus (4-4), described interior backstop (4-3) is positioned at holding away from adpting flange (4-1) of ring body (4-2), cover end ring body (4-2) has oil-return groove (5), oil-return groove (5) communicates with cover end ring endoporus (4-4), described adpting flange (4-1) has spill port (6), described adpting flange (4-1) is fixedly connected with the lower wind direction end of gearwheel axle sleeve (2), described interior backstop (4-3) is arranged in annular groove (11),
Upper and the cylindrical (1-3) being positioned at external splines (1-1) upwind of e, described sun gear (1) is gone up with gearwheel axle sleeve (2) and is positioned between the endoporus (2-3) of internal spline (2-1) upwind and forms oil suction chamber (8), on the upper and cylindrical (4-5) of cylindrical (1-4) that is wind direction under being positioned at external splines (1-1) and cover end ring body (4-2) of described sun gear (1) and gearwheel axle sleeve (2) and under being positioned at internal spline (2-1) wind direction endoporus (2-4) between form out oil pocket (7)
F, described oil suction chamber (8) by spline pair with go out oil pocket (7) and communicate, described go out the spill port (6) of oil pocket (7) and cover end ring (4) and oil-return groove (5) communicate, the endoporus (1-5) of described sun gear (1) and the axle head ring endoporus (3-3) of axle head ring (3) and the cover end ring endoporus (4-4) overlapping end ring (4) communicate.
11. blower fan speedup boxes according to claim 10, is characterized in that: described small gear (16) is in transmission connection three grades of parallel stage gears again.
12. blower fan speedup boxes according to claim 10, is characterized in that: described gearwheel (15) and gearwheel axle sleeve (2) are made of one.
CN201520467513.3U 2015-07-02 2015-07-02 Fan acceleration rate case and vice lubrication and cooling of spline washes structure thereof Withdrawn - After Issue CN205047805U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930173A (en) * 2015-07-02 2015-09-23 南车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930173A (en) * 2015-07-02 2015-09-23 南车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof
CN104930173B (en) * 2015-07-02 2017-05-24 中车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof

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