CN203939932U - The T-shaped secondary gear reducing transmission structure of depopulated helicopter - Google Patents
The T-shaped secondary gear reducing transmission structure of depopulated helicopter Download PDFInfo
- Publication number
- CN203939932U CN203939932U CN201420334975.3U CN201420334975U CN203939932U CN 203939932 U CN203939932 U CN 203939932U CN 201420334975 U CN201420334975 U CN 201420334975U CN 203939932 U CN203939932 U CN 203939932U
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- gear
- axle
- spiral bevel
- driven
- depopulated helicopter
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Abstract
The utility model discloses the T-shaped secondary gear reducing transmission structure of a kind of depopulated helicopter, comprise a pair of involute cylindric spiral gear and a pair of Gleason spiral bevel gear, active oblique gear axle horizontal arrangement, the below of active oblique gear axle is vertically provided with driven helical gear, driven helical gear is connected with active oblique gear axle Vertical Meshing realizes first order deceleration, driving spiral bevel axle horizontal arrangement, driven helical gear is housed on driving spiral bevel axle, thereby the left end of driving spiral bevel axle is connected with horizontal output shaft by electron beam welding, realizes the power that the first order slows down and export, the top of horizontal output shaft is vertically provided with driven spiral bevel gear, the end face of driven spiral bevel gear is connected with output flange axle, thereby being connected with moving curved-tooth bevel gear wheel shaft Vertical Meshing, driven spiral bevel gear realizes second level deceleration and power output.This structure has realized high transmission efficiency and the mechanical property under high rotating speed and high capacity and has greatly reduced volume and weight.
Description
Technical field
The utility model relates to speed reducer field, more particularly, relates to the T-shaped secondary gear reducing transmission structure of a kind of depopulated helicopter.
Background technique
At present, input shaft and the rotor of traditional depopulated helicopter main reducing gear, deceleration between tail-rotor output shaft and commutation great majority are to adopt a pair of helical bevel gear and belt to carry out mechanical transmission, helical bevel gear design, manufacture and install all simpler, but noise is larger, as only when the low speed, transmission smooth running, when high-speed motion, can produce vibration, cause backlash to become large, produce noise, affect gear life, slow down and adopt external belt transmission in gear capacity and the transmission efficiency second level, easily wearing and tearing cause tail-rotor output torque not enough, make body cannot keep stable.
Summary of the invention
Large in order to solve the existing noise of existing depopulated helicopter reducing transmission structure, vibrations are large, and transmission efficiency is low, short and the low problem of stability of life-span, the utility model provides a kind of transmission efficiency high, and velocity ratio is stable, bearing capacity is high, and stable drive is smooth-going, reliable operation, compact structure, energy-conservation material-saving, conserve space, wear-resistant, life-span is long, the T-shaped secondary gear reducing transmission structure of depopulated helicopter that noise is little.
It is as described below that the utility model solves the technological scheme that its technical problem adopts: the T-shaped secondary gear reducing transmission structure of a kind of depopulated helicopter, comprise a pair of involute cylindric spiral gear and a pair of Gleason spiral bevel gear, a pair of involute cylindric spiral gear comprises active oblique gear axle and the driven helical gear being connected with a joggle, a pair of Gleason spiral bevel gear comprises driving spiral bevel axle and the driven spiral bevel gear being connected with a joggle, it is characterized in that, described active oblique gear axle horizontal arrangement, parallel its below of being located at of driven helical gear, active oblique gear axle is connected with driven helical gear Vertical Meshing realizes first order deceleration, described driving spiral bevel axle is connected with driven spiral bevel gear and carries out transmission, thereby described driving spiral bevel axle is connected with horizontal output shaft and realizes the power output that the first order is slowed down, described driven spiral bevel gear at right angle setting is in the top of described driving spiral bevel axle, driving spiral bevel axle is connected with driven spiral bevel gear Vertical Meshing realizes second level deceleration, described driven spiral bevel gear is connected with output flange axle, by being arranged on the output flange of output flange axle output terminal, realizing the power of second level deceleration exports.
Described driven spiral bevel gear is connected and carries out transmission with driving spiral bevel axle by flat key.
Described driven spiral bevel gear is connected by screw with output flange axle.
Described driven helical gear is arranged on described driving spiral bevel axle.
Described driven helical gear both sides are provided with the first lock sleeve and the second lock sleeve, and are installed on bearing axial clearance and the horizontal back lash of gear on driving spiral bevel axle by the first lock sleeve and the second lock sleeve adjustment.
Described driving spiral bevel axle and horizontal output shaft are connected after by shaft hole matching.
Described driven spiral bevel gear is connected with output flange axle by screw.
Described output flange is connected with output flange axle by nut, and the end face of output flange is also equipped with the 4th lock sleeve adjustment and is installed on bearing axial clearance and the gear Vertical Meshing gap on output flange axle.
Adopt after above technological scheme, first by active oblique gear axle, provide input power, by active oblique gear axle and driven helical gear, power is carried out to first order deceleration, to adapt to output speed and the torque demand of depopulated helicopter tail-rotor, then by driven helical gear by transmission of power to driving spiral bevel axle, by driving spiral bevel axle and driven spiral bevel gear, power is done to the variation of Vertical direction and realized double reduction, to adapt to output speed and the torque demand of depopulated helicopter rotor.
The beneficial effects of the utility model are, have realized the high transmission efficiency under high rotating speed and high capacity, for the mechanical transmission of high-power depopulated helicopter, have very large economic benefit; The save space of the driving component transmission that needs while simultaneously transmitting equal moment of torsion, the bulk more required than belt, chain transmission is little, thereby volume and weight can be reduced greatly, thus the deadweight that reduces depopulated helicopter realizes the lifting of load capacity; Involute cylindric spiral gear and Gleason Spiral Bevel Gear Transmission are than permanent stable, reliable operation, vibrations and noise is little, transmission process is steady, the life-span is long, thereby meet depopulated helicopter for the high request of machine driven system stability.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.
Fig. 1 is involute cylindric spiral gear schematic diagram of the present utility model.
Fig. 2 is Gleason spiral bevel gear schematic diagram of the present utility model.
Fig. 3 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the T-shaped secondary gear reducing transmission structure of a kind of depopulated helicopter, comprise a pair of involute cylindric spiral gear, a pair of involute cylindric spiral gear is divided into active oblique gear axle 1 and driven helical gear 2, active oblique gear axle 1 horizontal arrangement, the parallel beneath of described active oblique gear axle 1 is provided with driven helical gear 2, and described driven helical gear 2 is connected with a joggle and realizes first order deceleration with active oblique gear axle 1.
As shown in Figure 2, the T-shaped secondary gear reducing transmission structure of a kind of depopulated helicopter, also comprise a pair of Gleason spiral bevel gear, a pair of Gleason spiral bevel gear is divided into driving spiral bevel axle 3 and driven spiral bevel gear 4, driving spiral bevel axle horizontal arrangement, driven helical gear 4 is housed on driving spiral bevel axle 3, and described driven spiral bevel gear 4 is connected with a joggle and realizes second level deceleration and commutation with driving spiral bevel axle 3.
As shown in Figure 3, for the utility model, further explain: active oblique gear axle 1 for power input shaft, right side input end is equipped with input shaft oil seal 5 and the first angular contact ball bearing 6, right side fixed end is equipped with the second angular contact ball bearing 7.By the inner ring of the axle rank butt angular contact ball bearing on active oblique gear axle 1, and realize the axially locating of bearing and fix by increase and decrease pad between axle rank and angular contact ball bearing.Driven helical gear 2 is arranged on driving spiral bevel axle 3 by flat key, triangle contact ball bearing 8 is equipped with on the right-hand axis rank of driving spiral bevel axle 3, the first lock sleeve 9 is installed between triangle contact ball bearing 8 and driven helical gear 2, deep groove ball bearing 11 is also equipped with on the gear end over glaze rank of driving spiral bevel axle 3, the second lock sleeve 10 is installed between deep groove ball bearing 11 and driven helical gear 2, the left side of driving spiral bevel axle 3 and horizontal output shaft 12 link into an integrated entity by electron beam welding, the output terminal of horizontal output shaft 12 is equipped with the 4th angular contact ball bearing 14 and horizontal output shaft oil sealing 15, horizontal output shaft 12 also has axle rank simultaneously, between axle rank and the 4th angular contact ball bearing 14, the 3rd lock sleeve 13 is also installed, by adjusting the length of the first lock sleeve 9 and the 3rd lock sleeve 13, adjust bearing axial clearance and the horizontal back lash of spiral bevel gear.Driven spiral bevel gear 4 links into an integrated entity by the flange plate of screw and output flange axle 16, output flange axle 16 is realized vertical axial restraint by the 5th angular contact ball bearing 17 is installed with the 5th angular contact ball bearing 18, the output terminal of output flange axle 16 is also provided with output flange shafting oil envelope 20, the output terminal of output flange axle 16 is connected with output flange 21 by nut, between output flange 21 and the 5th angular contact ball bearing 18, the 4th lock sleeve 19 is installed, by adjusting the length of the 4th lock sleeve 19, adjusts bearing axial clearance and gear Vertical Meshing gap.
Adopt after above mode of execution, first by active oblique gear axle 1, provide input power, by active oblique gear axle 1 and driven helical gear 2, power is carried out to first order deceleration, to adapt to output speed and the torque demand of depopulated helicopter tail-rotor, then by driven helical gear 2 by transmission of power to driving spiral bevel axle 3, by driving spiral bevel axle 3 and driven spiral bevel gear 4, power is done to the variation of Vertical direction and realized double reduction, to adapt to output speed and the torque demand of depopulated helicopter rotor.
Claims (8)
1. the T-shaped secondary gear reducing transmission structure of depopulated helicopter, comprise a pair of involute cylindric spiral gear and a pair of Gleason spiral bevel gear, a pair of involute cylindric spiral gear comprises active oblique gear axle and the driven helical gear being connected with a joggle, a pair of Gleason spiral bevel gear comprises driving spiral bevel axle and the driven spiral bevel gear being connected with a joggle, it is characterized in that, described active oblique gear axle horizontal arrangement, parallel its below of being located at of driven helical gear, active oblique gear axle is connected with driven helical gear Vertical Meshing realizes first order deceleration, described driving spiral bevel axle is connected with driven spiral bevel gear and carries out transmission, thereby described driving spiral bevel axle is connected with horizontal output shaft and realizes the power output that the first order is slowed down, described driven spiral bevel gear at right angle setting is in the top of described driving spiral bevel axle, driving spiral bevel axle is connected with driven spiral bevel gear Vertical Meshing realizes second level deceleration, described driven spiral bevel gear is connected with output flange axle, by being arranged on the output flange of output flange axle output terminal, realizing the power of second level deceleration exports.
2. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, is characterized in that: described driven spiral bevel gear is connected and carries out transmission with driving spiral bevel axle by flat key.
3. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, is characterized in that: described driven spiral bevel gear is connected by screw with output flange axle.
4. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, is characterized in that: described driven helical gear is arranged on described driving spiral bevel axle.
5. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, it is characterized in that: described driven helical gear both sides are provided with the first lock sleeve and the second lock sleeve, and be installed on bearing axial clearance and the horizontal back lash of gear on driving spiral bevel axle by the first lock sleeve and the second lock sleeve adjustment.
6. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, is characterized in that: described driving spiral bevel axle and horizontal output shaft are connected after by shaft hole matching.
7. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, is characterized in that: described driven spiral bevel gear is connected with output flange axle by screw.
8. the T-shaped secondary gear reducing transmission structure of depopulated helicopter according to claim 1, it is characterized in that: described output flange is connected with output flange axle by nut, the end face of output flange is also equipped with the 4th lock sleeve adjustment and is installed on bearing axial clearance and the gear Vertical Meshing gap on output flange axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334975.3U CN203939932U (en) | 2014-06-23 | 2014-06-23 | The T-shaped secondary gear reducing transmission structure of depopulated helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334975.3U CN203939932U (en) | 2014-06-23 | 2014-06-23 | The T-shaped secondary gear reducing transmission structure of depopulated helicopter |
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| Publication Number | Publication Date |
|---|---|
| CN203939932U true CN203939932U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420334975.3U Expired - Fee Related CN203939932U (en) | 2014-06-23 | 2014-06-23 | The T-shaped secondary gear reducing transmission structure of depopulated helicopter |
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| CN (1) | CN203939932U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608266A (en) * | 2019-08-30 | 2019-12-24 | 南京利剑无人机科技有限公司 | Unmanned aerial vehicle dual output second grade gearbox |
| CN113154013A (en) * | 2021-05-11 | 2021-07-23 | 中国航发沈阳发动机研究所 | Torsion-dividing output power device for central transmission bevel gear of aircraft engine |
| CN114955001A (en) * | 2022-06-17 | 2022-08-30 | 重庆大学 | Helicopter tail transmission system simulation experiment system |
-
2014
- 2014-06-23 CN CN201420334975.3U patent/CN203939932U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608266A (en) * | 2019-08-30 | 2019-12-24 | 南京利剑无人机科技有限公司 | Unmanned aerial vehicle dual output second grade gearbox |
| CN113154013A (en) * | 2021-05-11 | 2021-07-23 | 中国航发沈阳发动机研究所 | Torsion-dividing output power device for central transmission bevel gear of aircraft engine |
| CN114955001A (en) * | 2022-06-17 | 2022-08-30 | 重庆大学 | Helicopter tail transmission system simulation experiment system |
| CN114955001B (en) * | 2022-06-17 | 2024-05-31 | 重庆大学 | Helicopter tail transmission system simulation experiment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190118 Address after: 518129 Room 2106, Bairuida Building, New World Industrial City, Bantian Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhongju Century UAV Co., Ltd. Address before: 518000 Yinboge 28B, Haihui Building, Nanyou Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: The profound scholar of Shenzhen is led to Science and Technology Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20200623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |