CN203348016U - Internal threading pipe sealing device of wind power speed increasing box - Google Patents

Internal threading pipe sealing device of wind power speed increasing box Download PDF

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Publication number
CN203348016U
CN203348016U CN2013201854062U CN201320185406U CN203348016U CN 203348016 U CN203348016 U CN 203348016U CN 2013201854062 U CN2013201854062 U CN 2013201854062U CN 201320185406 U CN201320185406 U CN 201320185406U CN 203348016 U CN203348016 U CN 203348016U
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China
Prior art keywords
steel pipe
hollow shaft
output terminal
wind power
input end
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Active
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CN2013201854062U
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Chinese (zh)
Inventor
付跃登
马志宇
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Jiangsu New United Heavy Industry Technology Co Ltd
New United Group Co Ltd
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Jiangsu New United Heavy Industry Technology Co Ltd
New United Group Co Ltd
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Priority to CN2013201854062U priority Critical patent/CN203348016U/en
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Publication of CN203348016U publication Critical patent/CN203348016U/en
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    • Y02E10/722

Abstract

The utility model relates to an internal threading pipe sealing device of a wind power speed increasing box. The internal threading pipe sealing device is provided with a sealing steel tube and a hollow shaft, wherein the sealing steel tube is located in an inner cavity of the hollow shaft, a cavity is formed between the outer wall of the sealing steel tube and the inner wall of the hollow shaft, the sealing steel tube is provided with an inner cavity used for a threading pipe needing to be sealed to penetrate, the starting end face of the input end of the sealing steel tube exceeds the starting end face of the input end of the hollow shaft, the output end of the hollow shaft is provided with at least one hollow shaft radial hole, and the hollow shaft radial hole enables the inner cavity penetrating through the hollow shaft to be communicated with the outside. The internal threading pipe sealing device guarantees that leaking oil is discharged timely, greatly reduces influences of the leaking oil on the hollow shaft on slip ring communication, and is good in on-site maintainability.

Description

The inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox
Technical field
The utility model relates to the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox.
Background technique
In wind power generating set, become the slurry system and be installed in wheel hub, with wheel hub, rotate, and electric control cubicle is installed in cabin, power supply is provided to change slurry system.For preventing the cable twisting, need to install penetration pipe in Transmitted chains.
As shown in Figure 1 and Figure 2, because blower fan main shaft 2 and the planet carrier 31 input end relative positions of speedup box 3 can't change, make the seal arrangement between planet carrier 31 and hollow shaft 32 to safeguard, penetration pipe 1 is positioned at hollow shaft 32 inner chambers.Speedup box adopts splash lubrication and pressure lubrication more, and through operation for a long time, leakage of oil appears in speedup box inside frequently, in a large number.Leakage of oil flow to slip ring 4 along the cable of the penetration pipe 1 that is positioned at hollow shaft 32 inner chamber places, causes that slip ring 4 communications are not smooth, thereby causes the frequent even shutdown of reporting to the police of blower fan.Simultaneously, inner product oil in cabin is serious, and sanitary condition is poor.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of wind power speed-increasing gearbox inner penetration pipe seal arrangement, reduce the impact of the leakage of oil at hollow shaft place on slip ring communication.
The utility model solves the technological scheme that its technical problem adopts: the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox, there is sealed steel pipe, hollow shaft, described sealed steel pipe is positioned at the hollow shaft inner chamber, form cavity between the outer wall of described sealed steel pipe and the inwall of hollow shaft, described sealed steel pipe has the inner chamber that the penetration pipe for required sealing penetrates, the initial end face of the input end of described sealed steel pipe exceeds the initial end face of the input end of hollow shaft, the output terminal of described hollow shaft offers at least one hollow shaft radial hole, described hollow shaft radial hole makes inner chamber and the exterior of hollow shaft.
Further, described sealed steel pipe comprises input end steel pipe and output terminal steel pipe, and described input end steel pipe and output terminal steel pipe removably connect, and the joint of described input end steel pipe and output terminal steel pipe is sealed by Sealing.
Further, the Sealing of the joint of described input end steel pipe and output terminal steel pipe is sealer or Stamping Steel Ribbon.
Further, the internal diameter of described input end steel pipe is greater than the external diameter of output terminal steel pipe, and the front end of described output terminal steel pipe is inserted into the rear end inner chamber of input end steel pipe.
Further, the output terminal of described sealed steel pipe has steel pipe flange, and Spielpassung between the output terminal of the penetration pipe of described steel pipe flange and required sealing seals by sealing gasket between the end face of described steel pipe flange and hollow shaft output terminal.
Further, the output terminal of described hollow shaft, sealing gasket and steel pipe flange are fixedly connected with by screw with outside slip ring.
Further, described hollow shaft outer wall cover has speedup box end cap and end cover, between described speedup box end cap and end cover, by O-ring seals, seals; Between described end cover and hollow shaft outer wall, by lip-type packing, seal, described hollow shaft radial hole is communicated with end cover.
Further, the input end front end of described sealed steel pipe is removably connected with at least one additional steel pipe, and the front end of described additional steel pipe is provided with additional flange, and described additional flange is for being connected with blower fan main shaft.
The beneficial effects of the utility model are: when the penetration pipe of the inner penetration pipe seal arrangement of wind power speed-increasing gearbox of the present utility model and required sealing is installed, penetration pipe is worn the inner chamber to sealed steel pipe from the inner chamber of blower fan main shaft, sealed steel pipe by the cable shielding in penetration pipe and penetration pipe in the inner chamber of sealed steel pipe, therefore, leakage of oil between planet carrier and hollow shaft is incited somebody to action only can be between sealed steel pipe outer wall and inner wall of hollow shaft, leakage of oil flow to the output terminal outer wall of sealed steel pipe from sealed steel pipe input end outer wall, therefore leakage of oil can not enter penetration pipe inside.Form cavity between inwall because of the outer wall of sealed steel pipe and hollow shaft, be the hollow shaft radial hole that leakage of oil flows to hollow shaft inner chamber output, flowed out by the hollow shaft radial hole, so leakage of oil be difficult for flowing to slip ring, make slip ring communication use unaffected, the assurance leakage of oil is discharged in time.The utility model greatly reduces the impact of the leakage of oil at hollow shaft place on slip ring communication, and field maintainability is better.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the mounting structure schematic diagram of penetration pipe in prior art, blower fan main shaft, speedup box, slip ring;
Fig. 2 is the scheme of installation that in prior art, penetration pipe does not have mounting sealing device;
Fig. 3 is the simple and easy scheme of installation of the penetration pipe of the inner penetration pipe seal arrangement of embodiment's one of the present utility model wind power speed-increasing gearbox and required sealing;
Fig. 4 is the detailed construction schematic diagram of the inner penetration pipe seal arrangement of wind power speed-increasing gearbox in embodiment one of the present utility model;
Fig. 5 is the enlarged diagram at A place in Fig. 4;
Fig. 6 is the structural representation of the embodiment's two of the present utility model inner penetration pipe seal arrangement of wind power speed-increasing gearbox;
Wherein: 1. penetration pipe, 2. blower fan main shaft, 3. speedup box, 31. planet carrier, 32. hollow shafts, 33. hollow shaft radial holes, 34. speedup box end cap, 4. slip ring, 5. sealed steel pipe, 51. input end steel pipe, 52. the output terminal steel pipe, 54. lip-type packings, 55. end covers, 58. additional steel pipe, 59. additional flange.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
Embodiment one: as shown in Fig. 3 Fig. 4, the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox, there is sealed steel pipe 5, hollow shaft 32, sealed steel pipe 5 is positioned at hollow shaft 32 inner chambers, form cavity between the inwall of the outer wall of sealed steel pipe 5 and hollow shaft 32, sealed steel pipe 5 has the inner chamber that the penetration pipe 1 for required sealing penetrates, the initial end face of the input end of sealed steel pipe 5 exceeds the initial end face of the input end of hollow shaft 32, the output terminal of hollow shaft 32 offers at least one hollow shaft radial hole 33, and hollow shaft radial hole 33 makes inner chamber and the exterior of hollow shaft 32.
As shown in Fig. 3 Fig. 4, when the penetration pipe 1 of the inner penetration pipe seal arrangement of wind power speed-increasing gearbox of the present utility model and required sealing is installed, penetration pipe 1 is worn to the inner chamber of sealed steel pipe 5 from the inner chamber of blower fan main shaft 2, sealed steel pipe 5 by the cable shielding in penetration pipe 1 and penetration pipe in the inner chamber of sealed steel pipe 5, therefore, leakage of oil between planet carrier 31 and hollow shaft 32 is incited somebody to action only can be between sealed steel pipe 5 outer walls and hollow shaft 32 inwalls, because the initial end face of the input end of sealed steel pipe 5 exceeds the initial end face of the input end of hollow shaft 32, there is inclination angle while adding speedup box 3 work, the leakage of oil of hollow shaft 32 initial ends flow to sealed steel pipe 5 outer walls, leakage of oil easily flow to the output terminal outer wall of sealed steel pipe 5 from the input end outer wall of sealed steel pipe 5, therefore leakage of oil can not enter penetration pipe 1 inside.Form cavity between inwall because of the outer wall of sealed steel pipe 5 and hollow shaft 32, be the hollow shaft radial hole 33 that leakage of oil flows to hollow shaft 32 inner chamber outputs, flowed out by hollow shaft radial hole 33, so leakage of oil be difficult for flowing to slip ring, make slip ring communication use unaffected, the assurance leakage of oil is discharged in time.
Hollow shaft radial hole 33 circumferentially staggers with the end face connecting thread hole that hollow shaft 32 routines of speedup box need be offered.
Sealed steel pipe 5 comprises input end steel pipe 51 and output terminal steel pipe 52, and input end steel pipe 51 removably connects with output terminal steel pipe 52, as is threaded etc., and this form field maintenance is good, installing/dismounting more for convenience,
Input end steel pipe 51 is sealed by Sealing with the joint of output terminal steel pipe 52, can prevent that leakage of oil from entering the penetration pipe inwall by joint.Input end steel pipe 51 is sealer or Stamping Steel Ribbon with the Sealing of the joint of output terminal steel pipe 52.
The internal diameter of input end steel pipe 51 is greater than the external diameter of output terminal steel pipe 52, and the front end of output terminal steel pipe 52 is inserted into the rear end inner chamber of input end steel pipe 51.Leakage of oil easily flow to the outer wall of output terminal steel pipe from the outer wall of input end steel pipe.
The output terminal of sealed steel pipe 5 has steel pipe flange, Spielpassung between the output terminal of the penetration pipe 1 of steel pipe flange and required sealing.The axial stretching that this form allows penetration pipe 1 to cause due to the temperature difference has reduced the radial-play of penetration pipe 1 simultaneously.Between the end face of steel pipe flange and hollow shaft output terminal, by sealing gasket, seal.Sealing gasket between steel pipe flange and hollow shaft output terminal can prevent that leakage of oil from locating along hollow axle end surface current to outside cabin etc.
As shown in Figure 5, hollow shaft outer wall cover has speedup box end cap 34 and end cover 55, between speedup box end cap 34 and end cover 55, by O-ring seals, seals; Between end cover 55 and hollow shaft 32 outer walls, by lip-type packing 54, seal; The output terminal of hollow shaft 32, sealing gasket and steel pipe flange are fixedly connected with by screw with outside slip ring 4.Hollow shaft radial hole 33 is communicated with end cover 55, and the leakage of oil that hollow shaft radial hole 33 flows out flow to end cover 55, by end cover, is expelled to oil catcher.
The lip-type packing 54 of installing makes to form motive sealing between end cover 55 and hollow shaft 32 outer walls, and the O-ring seals of installation seals and can prevent that leakage of oil from flowing to outside cabin etc. and locating.
The inner penetration pipe seal arrangement of wind power speed-increasing gearbox of the present utility model, simple in structure, easy for installation, the utility model greatly reduces the impact of the leakage of oil at hollow shaft place on slip ring communication, and field maintainability is better.
Embodiment two.As shown in Figure 6, with embodiment one difference, be: the input end front end of sealed steel pipe 5 is removably connected with at least one additional steel pipe 58, and the front end of additional steel pipe 58 is provided with additional flange 59, and additional flange 59 is for being connected with blower fan main shaft 2.Additional flange 59 is with blower fan main shaft 2 rotations.The utility model has solved the planet carrier 31 and the impact of hollow shaft 32 leakage of oils on slip ring communication of speedup box, and field maintainability is good.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to the claim scope.

Claims (8)

1. the inner penetration pipe seal arrangement of a wind power speed-increasing gearbox, it is characterized in that: there is sealed steel pipe (5), hollow shaft (32), described sealed steel pipe (5) is positioned at hollow shaft (32) inner chamber, form cavity between the inwall of the outer wall of described sealed steel pipe (5) and hollow shaft (32), described sealed steel pipe (5) has the inner chamber that the penetration pipe (1) for required sealing penetrates, the initial end face of the input end of described sealed steel pipe (5) exceeds the initial end face of the input end of hollow shaft (32), the output terminal of described hollow shaft (32) offers at least one hollow shaft radial hole (33), described hollow shaft radial hole (33) makes inner chamber and the exterior of hollow shaft (32).
2. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 1, it is characterized in that: described sealed steel pipe (5) comprises input end steel pipe (51) and output terminal steel pipe (52), described input end steel pipe (51) removably connects with output terminal steel pipe (52), and described input end steel pipe (51) is sealed by Sealing with the joint of output terminal steel pipe (52).
3. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 2, it is characterized in that: described input end steel pipe (51) is sealer or Stamping Steel Ribbon with the Sealing of the joint of output terminal steel pipe (52).
4. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 2, it is characterized in that: the internal diameter of described input end steel pipe (51) is greater than the external diameter of output terminal steel pipe (52), and the front end of described output terminal steel pipe (52) is inserted into the rear end inner chamber of input end steel pipe (51).
5. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 1, it is characterized in that: the output terminal of described sealed steel pipe (5) has steel pipe flange, Spielpassung between the output terminal of the penetration pipe of described steel pipe flange and required sealing (1), seal by sealing gasket between the end face of described steel pipe flange and hollow shaft (32) output terminal.
6. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 5, it is characterized in that: output terminal, sealing gasket and the steel pipe flange of described hollow shaft (32) is fixedly connected with by screw with outside slip ring (4).
7. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 1, it is characterized in that: described hollow shaft (32) outer wall cover has speedup box end cap (34) and end cover (55), between described speedup box end cap (34) and end cover (55), by O-ring seals, seals; Between described end cover (55) and hollow shaft (32) outer wall, by lip-type packing (54) sealing, described hollow shaft radial hole (33) is communicated with end cover (55).
8. the inner penetration pipe seal arrangement of a kind of wind power speed-increasing gearbox according to claim 1, it is characterized in that: the input end front end of described sealed steel pipe (5) is removably connected with at least one additional steel pipe (58), the front end of described additional steel pipe (58) is provided with additional flange (59), and described additional flange (59) is for being connected with blower fan main shaft (2).
CN2013201854062U 2013-04-12 2013-04-12 Internal threading pipe sealing device of wind power speed increasing box Active CN203348016U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013201854062U CN203348016U (en) 2013-04-12 2013-04-12 Internal threading pipe sealing device of wind power speed increasing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013201854062U CN203348016U (en) 2013-04-12 2013-04-12 Internal threading pipe sealing device of wind power speed increasing box

Publications (1)

Publication Number Publication Date
CN203348016U true CN203348016U (en) 2013-12-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711876A (en) * 2014-01-08 2014-04-09 广东明阳风电产业集团有限公司 Torque transmission device for slip ring hollow shaft of wind driven generator
CN105757247A (en) * 2016-03-17 2016-07-13 重庆望江工业有限公司 Hollow shaft sealing structure of wind power gear box
CN105840801A (en) * 2016-06-02 2016-08-10 南京安维士传动技术股份有限公司 Oil leakage maintenance device for pipe shaft of gearbox in wind driven generator room and mounting method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711876A (en) * 2014-01-08 2014-04-09 广东明阳风电产业集团有限公司 Torque transmission device for slip ring hollow shaft of wind driven generator
CN105757247A (en) * 2016-03-17 2016-07-13 重庆望江工业有限公司 Hollow shaft sealing structure of wind power gear box
CN105757247B (en) * 2016-03-17 2018-03-20 重庆望江工业有限公司 A kind of hollow axle sealing structure of wind turbine gearbox
CN105840801A (en) * 2016-06-02 2016-08-10 南京安维士传动技术股份有限公司 Oil leakage maintenance device for pipe shaft of gearbox in wind driven generator room and mounting method

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