CN109595329B - Wind power generation main gear box with detachable parallel stages - Google Patents

Wind power generation main gear box with detachable parallel stages Download PDF

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Publication number
CN109595329B
CN109595329B CN201811617569.7A CN201811617569A CN109595329B CN 109595329 B CN109595329 B CN 109595329B CN 201811617569 A CN201811617569 A CN 201811617569A CN 109595329 B CN109595329 B CN 109595329B
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CN
China
Prior art keywords
shaft
spline
box body
tube
stage
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Application number
CN201811617569.7A
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Chinese (zh)
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CN109595329A (en
Inventor
张雪娇
张先江
何磊
龚书林
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Nanjing High Speed Gear Manufacturing Co Ltd
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Nanjing High Speed Gear Manufacturing Co Ltd
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Application filed by Nanjing High Speed Gear Manufacturing Co Ltd filed Critical Nanjing High Speed Gear Manufacturing Co Ltd
Priority to CN201811617569.7A priority Critical patent/CN109595329B/en
Publication of CN109595329A publication Critical patent/CN109595329A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02078—Gearboxes for particular applications for wind turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F16H2057/0235—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly specially adapted to allow easy accessibility and repair

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a wind power generation main gear box with detachable parallel stages, which comprises: planetary and parallel stages; the planetary stage drives the parallel stage; the planetary stage includes: a gear ring; the parallel stage includes: the device comprises a high-speed shafting, a spline shafting, a pipe shaft, an upper box body, a lower box body and a rear box body; the rear box body is detachably arranged to the gear ring along the axial direction of the pipe shaft; the upper box body and the lower box body are respectively detachably arranged to the rear box body along the direction perpendicular to the axis of the tube shaft; the spline shaft system further includes: sun gear shaft, spline shaft and low-speed gear; the spline shaft is connected to the low-speed gear; the low-speed gear drives a high-speed shafting; the sun gear shaft includes: a first connecting shaft and a second connecting shaft; the pipe shaft passes through the spline shaft; the tube shaft includes: a first tube shaft and a second tube shaft; the first tube shaft is detachably connected to the second tube shaft in the direction of the axis of the tube shafts. The parallel stage of the wind power generation main gear box with the detachable parallel stage can be detached, and is convenient to maintain.

Description

Wind power generation main gear box with detachable parallel stages
Technical Field
The invention relates to a detachable parallel-stage wind power generation main gear box.
Background
The parallel-stage rotating speed of the high-power wind power gear box suitable for the sea is relatively high, the failure rate is relatively high, direct and indirect losses caused by the high-power wind power gear box are also larger and larger, and particularly the failure rate of the wind power unit is high due to complex natural conditions at sea, so that the wind power gear box is difficult to maintain and has high maintenance cost. Due to the limited space of the nacelle and the limitation of maintaining the bearing capacity of the crane, the current wind power main gear box is difficult to carry out parallel-stage maintenance work except for a high-speed shaft in the nacelle, once the gear or a spline shaft or an ISS sun gear has a problem, the gear box can only be taken off the frame for maintenance, and if the gear box is applied to the sea, the maintenance cost is greatly increased.
Disclosure of Invention
The invention provides a detachable parallel-stage wind power generation main gear box, which adopts the following technical scheme:
A detachable parallel stage wind power main gearbox comprising: planetary and parallel stages; the planetary stage drives the parallel stage; the planetary stage includes: a gear ring; the parallel stage includes: the device comprises a high-speed shafting, a spline shafting, a pipe shaft, an upper box body, a lower box body and a rear box body; the rear box body is detachably arranged to the gear ring along the axial direction of the pipe shaft; the upper box body and the lower box body are respectively detachably arranged to the rear box body along the direction perpendicular to the axis of the tube shaft; the spline shaft system further includes: sun gear shaft, spline shaft and low-speed gear; the spline shaft is connected to the low-speed gear; the low-speed gear drives a high-speed shafting; the sun gear shaft includes: a first connecting shaft and a second connecting shaft; the first connecting shaft is detachably connected to the second connecting shaft along the axial direction of the pipe shaft; the second connecting shaft is connected to the spline shaft through a spline; the first connecting shaft is provided with a sun gear; the tube shaft passes through the spline shaft and the sun gear shaft; the tube shaft includes: a first tube shaft and a second tube shaft; the first tube shaft is detachably connected to the second tube shaft in the direction of the axis of the tube shafts.
Further, the planetary stage includes: a first planetary stage and a second planetary stage; the first planetary stage drives the parallel stage via the second planetary stage.
Further, the upper case is detached in the opposite direction to the lower case.
Further, the axis of the tube shaft coincides with the rotational axis of the low-speed gear.
Further, the axis of the tube shaft coincides with the rotational axis of the spline shaft.
Further, the rotational axis of the high speed shafting is parallel to the rotational axis of the spline shafting.
Further, the first connecting shaft is connected to the second connecting shaft by a bolt.
Further, the first connection shaft is connected to the second connection shaft by a screw thread or a key.
Further, the first tube shaft is connected to the second tube shaft by a bolt.
Further, the first tube shaft is connected to the second tube shaft by threads or keys.
The detachable parallel-stage wind power generation main gear box has the advantages that the first connecting shaft of the detachable parallel-stage wind power generation main gear box is detachably connected to the second connecting shaft, the first pipe shaft is detachably connected to the second pipe shaft, and the upper box body and the lower box body are detachably connected to the rear box body. When the maintenance is needed, the upper box body or the lower box body can be directly disassembled, and the axial space required by the maintenance can be reduced by disassembling the first tube shaft so as to remove the parallel shaft system from the gear box, thereby maintaining the low-speed gear and the spline; and then the second connecting shaft is detached, and the first connecting shaft is continuously detached to repair the sun gear.
Drawings
FIG. 1 is a cross-sectional view of a detachable parallel stage wind power main gearbox of the present invention;
FIG. 2 is a cross-sectional view of the internal structure of the detachable parallel stage wind power generation main gearbox of FIG. 1;
FIG. 3 is a cross-sectional view of the spline shaft of the detachable parallel stage wind turbine main gearbox of FIG. 1.
The wind power generation main gear box 10 with detachable parallel stages, the planetary stage 11, the gear ring 113, the first planetary stage 111, the second planetary stage 112, the parallel stage 12, the high-speed shafting 13, the spline shafting 14, the sun gear shaft 141, the first connecting shaft 142, the sun gear 1421, the second connecting shaft 143, the spline 1431, the low-speed gear 145, the pipe shaft 146, the first pipe shaft 1461, the second pipe shaft 1462, the spline shaft 147, the upper box 15, the lower box 16 and the rear box 17.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 3, a detachable parallel stage wind power generation main gear box 10 includes: a planetary stage 11 and a parallel stage 12. The planetary stage 11 drives the parallel stage 12 to output power through the parallel stage 12.
The planetary stage 11 comprises: ring gear 113. The parallel stage 12 comprises: high-speed shafting 13, spline shafting 14, tube shaft 146, upper box 15, lower box 16 and rear box 17. The rear case 17 is mounted to the ring gear 113. The upper case 15 and the lower case 16 are mounted to the rear case 17. An installation space is formed after the upper case 15, the lower case 16, and the rear case 17 are installed. Portions of the high speed shafting 13, the spline shafting 14 and the tube shaft 146 are located in the installation space.
As one solution, the rear case 17 is detachably attached to the ring gear 113 in the axial direction of the tube shaft 146. The upper case 15 and the lower case 16 are detachably attached to the rear case 17 in directions perpendicular to the axis of the tube shaft 146, respectively. In mounting the upper case 15, the upper case 15 may be moved in a direction parallel to the axis of the tube shaft 146 to bring the upper case 15 close to the rear case 17, and then the upper case 15 may be moved downward in a direction perpendicular to the axis of the tube shaft 146 to mount the upper case 15 to the rear case 17. Also, when the lower case 16 is mounted, the lower case 16 may be moved in a direction parallel to the axis of the tube shaft 146 to bring the lower case 16 close to the rear case 17, and then the lower case 16 may be moved upward in a direction perpendicular to the axis of the tube shaft 146 to mount the lower case 16 to the rear case 17. When a problem occurs in the low-speed gear 145, the sun gear shaft 141 or the spline shaft 147 in the parallel stage 12 of the detachable parallel stage wind power generation main gear box 10, it can be detached for maintenance. The upper case 15 and the lower case 16 are detached from the rear case 17 in a direction perpendicular to the axis of the tube shaft 146, respectively, so that maintenance of the structure in the installation space can be achieved. When the low-speed gear 145, the sun gear shaft 141, or the spline shaft 147 is detached, the total height of the upper case 15 and the lower case 16 separated from each other needs to be larger than the diameter of the low-speed gear 145 so that the spline shaft 14 is not restricted in the vertical direction, thereby satisfying the condition that the spline shaft 14 can be moved in the axial direction. The spline shaft 14 is removed in the axial direction and the corresponding structure removed for service.
The spline shaft 14 further includes: sun gear shaft 141, spline shaft 147, and low-speed gear 145. Spline shaft 147 is connected to low-speed gear 145. The low-speed gear 145 drives the high-speed shafting 13. The sun gear shaft 141 includes: a first connection shaft 142 and a second connection shaft 143. The first connecting shaft 142 is detachably connected to the second connecting shaft 143 in the direction of the axis of the tube shaft 146. The second connecting shaft 143 is connected to the spline shaft 147 by a spline 1431. A low-speed gear 145. The first connecting shaft 142 is formed with a sun gear 1421. The sun gear shaft 141 is an ISS sun gear.
Specifically, the planetary stage 11 transfers input power to the parallel stage 12 through the sun gear 1421 of the first connecting shaft 142. In the parallel stage 12, the first connecting shaft 142 transmits input power to the low-speed gear 145 through the second connecting shaft 143. The low-speed gear 145 in turn drives the high-speed shafting 13 to achieve power output. The low-speed gear 145 is sleeved on the outer periphery of the second connecting shaft 143, and the low-speed gear 145 and the spline 1431 are located in the installation space.
The tube shaft 146 passes through the spline shaft 141. The tube shaft 146 includes: a first tube shaft 1461 and a second tube shaft 1462. The first tube shaft 1461 is detachably connected to the second tube shaft 1462 in the direction of the axis of the tube shaft 146.
Based on the above, when a problem occurs in the gear structure in the parallel stage 12, the upper case 15 and the lower case 16 are detached in the direction perpendicular to the axial direction, and then the second tube shaft 1462 is detached from the first tube shaft 1461. Thus, the axial space required for maintenance can be shortened, and the problems that the space in the engine room is smaller, the tube shaft 146 is longer, and the disassembly maintenance cannot be performed in the engine room are avoided. At this time, the low-speed gear 145 or the spline shaft 147 can be detached for maintenance.
If the first connecting shaft 1421 of the sun gear shaft 141 is to be maintained, the second connecting shaft 143 and the first connecting shaft 142 can be detached first to shorten the length of the sun gear shaft 141, so as to reduce the axial space required by the disassembly of the sun gear shaft 141, and avoid the problems that the space in the nacelle is smaller, the sun gear shaft 141 is longer, and the disassembly maintenance cannot be performed in the nacelle. The first connecting shaft 142 may be removed at this time to repair the sun gear shaft 141.
As a preferred embodiment, the planetary stage 11 comprises: a first planetary stage 111 and a second planetary stage 112. The first planetary stage 111 drives the parallel stage 12 via the second planetary stage 112.
As a preferred embodiment, the upper case 15 is detached in the opposite direction to the lower case 16.
As an alternative, the upper and lower cases are disassembled in opposite directions in the vertical direction.
As another alternative, the upper and lower cases are disassembled in opposite directions in the horizontal direction.
As a preferred embodiment, the axis of the tube shaft 146 coincides with the axis of rotation of the low-speed gear 145. The axis of the tube shaft 146 coincides with the rotational axis of the spline shaft 141.
Specifically, the spline shaft 141 is fitted around the outer periphery of the tube shaft 146, and the low-speed gear 145 is fitted around the outer periphery of the spline shaft 141. The rotational axes of the spline shaft 141, the tube shaft 146 and the low-speed gear 145 coincide.
As a preferred embodiment, the rotational axis of the high-speed shafting 13 is parallel to the rotational axis of the spline shafting 14.
As a preferred embodiment, the first connection shaft 142 is connected to the second connection shaft 143 by bolts to facilitate disassembly.
As an alternative embodiment, the first connection shaft may also be connected to the second connection shaft by means of threads or keys.
As a preferred embodiment, the first tube shaft 1461 is bolted to the second tube shaft 1462 for easy disassembly.
As a preferred embodiment, the first tubular shaft may also be connected to the second tubular shaft by threads or keys.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.

Claims (8)

1. A detachable parallel stage wind power main gearbox comprising: planetary and parallel stages; the planetary stage drives the parallel stage; the planetary stage includes: a gear ring; characterized in that the parallel stage comprises: the device comprises a high-speed shafting, a spline shafting, a pipe shaft, an upper box body, a lower box body and a rear box body; the rear box body is detachably mounted to the gear ring along the axial direction of the pipe shaft; the upper box body and the lower box body are detachably mounted to the rear box body along the direction perpendicular to the axis of the pipe shaft respectively; the spline shafting further comprises: sun gear shaft, spline shaft and low-speed gear; the spline shaft is connected to the low-speed gear; the low-speed gear drives the high-speed shafting; the sun gear shaft includes: a first connecting shaft and a second connecting shaft; the first connecting shaft is detachably connected to the second connecting shaft along the axial direction of the pipe shaft; the second connecting shaft is connected to the spline shaft through a spline; the first connecting shaft is provided with a sun gear; the tube shaft passes through the spline shaft and the sun gear shaft; the tube shaft includes: a first tube shaft and a second tube shaft; the first pipe shaft is detachably connected to the second pipe shaft along the axial direction of the pipe shaft;
The planetary stage includes: a first planetary stage and a second planetary stage; the first planetary stage driving the parallel stage via the second planetary stage;
the upper box body and the lower box body are opposite in disassembly direction.
2. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The axis of the tube shaft coincides with the rotational axis of the low-speed gear.
3. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The axis of the tube shaft coincides with the rotation axis of the spline shaft.
4. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The rotation axis of the high-speed shafting is parallel to the rotation axis of the spline shafting.
5. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The first connecting shaft is connected to the second connecting shaft by a bolt.
6. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The first connecting shaft is connected to the second connecting shaft by threads or keys.
7. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The first tube shaft is connected to the second tube shaft by a bolt.
8. A detachable parallel stage wind power main gearbox according to claim 1, wherein,
The first tube shaft is connected to the second tube shaft by threads or keys.
CN201811617569.7A 2018-12-28 2018-12-28 Wind power generation main gear box with detachable parallel stages Active CN109595329B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811617569.7A CN109595329B (en) 2018-12-28 2018-12-28 Wind power generation main gear box with detachable parallel stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811617569.7A CN109595329B (en) 2018-12-28 2018-12-28 Wind power generation main gear box with detachable parallel stages

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CN109595329A CN109595329A (en) 2019-04-09
CN109595329B true CN109595329B (en) 2024-10-01

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209875902U (en) * 2018-12-28 2019-12-31 南京高速齿轮制造有限公司 Detachable parallel-level wind power generation main gearbox

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7008348B2 (en) * 2003-02-18 2006-03-07 General Electric Company Gearbox for wind turbine
US8096917B2 (en) * 2008-11-13 2012-01-17 General Electric Company Planetary gearbox having multiple sun pinions
CN201367990Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Speed-increasing gear case for hybrid-driven type wind-driven generator
ES2753876T5 (en) * 2017-01-23 2023-07-11 Flender Gmbh Planetary gear with an improved planet carrier bracket
CN206988415U (en) * 2017-06-06 2018-02-09 南京安维士传动技术股份有限公司 A kind of 1663 kilowatts of wind turbine gearboxes
CN108050021A (en) * 2017-12-28 2018-05-18 南京高速齿轮制造有限公司 More than 6MW increasing gear box for half-direct-driven wind generation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209875902U (en) * 2018-12-28 2019-12-31 南京高速齿轮制造有限公司 Detachable parallel-level wind power generation main gearbox

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Effective date of registration: 20191008

Address after: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road.

Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd.

Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road.

Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20200514

Address after: 211103 No.30, Houjiao Road, gaoxinyuan, Jiangning District, Nanjing City, Jiangsu Province

Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road.

Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd.

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