CN203730715U - Transmission structure adopting multifunctional gear transmission shaft - Google Patents

Transmission structure adopting multifunctional gear transmission shaft Download PDF

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Publication number
CN203730715U
CN203730715U CN201420007986.0U CN201420007986U CN203730715U CN 203730715 U CN203730715 U CN 203730715U CN 201420007986 U CN201420007986 U CN 201420007986U CN 203730715 U CN203730715 U CN 203730715U
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CN
China
Prior art keywords
shaft
gear
attachment
gear shaft
annex
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420007986.0U
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Chinese (zh)
Inventor
侯明曦
孔祥锋
邢彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Shenyang Engine Research Institute
AVIC Shenyang Engine Design and Research Institute
Original Assignee
AVIC Shenyang Engine Design and Research Institute
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Application filed by AVIC Shenyang Engine Design and Research Institute filed Critical AVIC Shenyang Engine Design and Research Institute
Priority to CN201420007986.0U priority Critical patent/CN203730715U/en
Application granted granted Critical
Publication of CN203730715U publication Critical patent/CN203730715U/en
Active legal-status Critical Current
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Abstract

The utility model discloses a transmission structure adopting a multifunctional gear transmission shaft. The transmission structure comprises a fuel attachment, a roller bearing, an oil gas separation device, a supporting shell, a gear shaft, a ball bearing, a mechanical sealing device, a first attachment and an installation base fixing attachment. The fuel attachment and the first attachment with the same rotating speed are connected through inner splines at the two ends of the gear shaft and a molded face connection manner. The rear end of the first attachment is provided with the installation base fixing attachment, and the oil gas separation device is installed by the gear shaft by combining tightness matching and spline connecting, and the gear shaft is fixed to the supporting shell through the roller bearing and the ball bearing which serve as supports and are provided with installation edges. The mechanical sealing device is fixed to the supporting shell in a stud connection mode, and the stable internal working environment of a gear transmission system is ensured. The transmission structure adopting the multifunctional gear transmission shaft has the advantages that the problems that a gearbox transmission chain is excessively long, and the number of supporting and sealing parts is excessively large are solved, and application and development of a multifunctional gear transmission system is facilitated.

Description

A kind of drive mechanism that adopts multifunctional gear transmission shaft
Technical field
The utility model relates to drive mechanism field, particularly a kind of drive mechanism that adopts multifunctional gear transmission shaft.
Background technique
All kinds of annexes of aircraft and engine all need gearbox drive, adopt at present the form of an annex of a rooted tooth wheel shaft drive, easily cause that gearbox drive chain is long, support and sealed member is too much, transmission system is complicated and gear train is difficult in maintenance, large, the weight of gear-box wind-exposuring area is difficult to reduce and then affect the problems such as engine performance simultaneously.
Model utility content
The purpose of this utility model is can drive multiple driven accessaries normally to work in order to realize simultaneously, can ensure again the working environment that gear train assembly is stable; Can shorten gear transmission chain, reduce gearing shaft, can reduce again the number of components such as support and sealing, spy provides a kind of drive mechanism that adopts multifunctional gear transmission shaft.
The utility model provides a kind of drive mechanism that adopts multifunctional gear transmission shaft, it is characterized in that: the drive mechanism of described employing multifunctional gear transmission shaft, comprise fuel oil annex 1, roller bearing 2, gas and oil separating plant 3, support housing 4, gear shaft 5, ball bearing 6, mechanical sealing device 7, the first annex 8, fitting seat fixing fitting 9;
Wherein: internal spline and profile by gear shaft 5 two ends connect form, connect identical fuel oil annex 1 and the first annex 8 of rotating speed, the first annex 8 simple in structure, size is less, there is in its back-end fitting seat fixing fitting 9, gear shaft 5 coordinates the mode combining with spline joint that gas and oil separating plant 3 is installed with tightness, while ensureing the high rotation speed operation of gear shaft on the one hand, gas and oil separating plant can be realized Oil-gas Separation function and relative slippage not occur, facilitate on the one hand mounting or dismounting and the replacing of gas and oil separating plant, gear shaft 5 is with the roller bearing 2 with mounting edge, ball bearing 6 is as being supported and fixed on support housing 4, both can compensate the Axial Thermal distortion of gear shaft, can also at utmost reduce interference fit and the impact of thermal distortion on bearing end-play.Mechanical sealing device 7 adopts stud connection form to be fixed on support housing 4, has ensured the internal work environment that gear train assembly is stable.
Described gear shaft 5 is hollow shaft structure.
Gearing shaft connects multiple driven accessaries close rotating speed by series connection form, utilize the connection forms such as gear shaft two ends spline to connect and drive two driven accessaries, utilizes middle shaft part perforate and is connected with gas and oil separating plant and realize separation oil and gas function.Like this, can shorten gear transmission chain, reduce gearing shaft, improve transmission system efficiency, can reduce again the number of components such as support and sealing, improve transmission system reliability.
Advantage of the present utility model:
The drive mechanism of employing multifunctional gear transmission shaft described in the utility model, solved that gearbox drive chain is long, support and the too much present situation of sealed member, avoid transmission system complexity and gear train passive situation difficult in maintenance, promoted the application development of multifunctional gear transmission system.
Brief description of the drawings
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is the drive mechanism schematic diagram that adopts multifunctional gear transmission shaft.
Embodiment
Embodiment 1
The present embodiment provides a kind of drive mechanism that adopts multifunctional gear transmission shaft, it is characterized in that: the drive mechanism of described employing multifunctional gear transmission shaft, comprise fuel oil annex 1, roller bearing 2, gas and oil separating plant 3, support housing 4, gear shaft 5, ball bearing 6, mechanical sealing device 7, the first annex 8, fitting seat fixing fitting 9;
Wherein: internal spline and profile by gear shaft 5 two ends connect form, connect identical fuel oil annex 1 and the first annex 8 of rotating speed, the first annex 8 simple in structure, size is less, there is in its back-end fitting seat fixing fitting 9, gear shaft 5 coordinates the mode combining with spline joint that gas and oil separating plant 3 is installed with tightness, while ensureing the high rotation speed operation of gear shaft on the one hand, gas and oil separating plant can be realized Oil-gas Separation function and relative slippage not occur, facilitate on the one hand mounting or dismounting and the replacing of gas and oil separating plant, gear shaft 5 is with the roller bearing 2 with mounting edge, ball bearing 6 is as being supported and fixed on support housing 4, both can compensate the Axial Thermal distortion of gear shaft, can also at utmost reduce interference fit and the impact of thermal distortion on bearing end-play.Mechanical sealing device 7 adopts stud connection form to be fixed on support housing 4, has ensured the internal work environment that gear train assembly is stable.
Described gear shaft 5 is hollow shaft structure.
Gearing shaft connects multiple driven accessaries close rotating speed by series connection form, utilize the connection forms such as gear shaft two ends spline to connect and drive two driven accessaries, utilizes middle shaft part perforate and is connected with gas and oil separating plant and realize separation oil and gas function.Like this, can shorten gear transmission chain, reduce gearing shaft, improve transmission system efficiency, can reduce again the number of components such as support and sealing, improve transmission system reliability.

Claims (2)

1. one kind adopts the drive mechanism of multifunctional gear transmission shaft, it is characterized in that: the drive mechanism of described employing multifunctional gear transmission shaft, comprise fuel oil annex (1), roller bearing (2), gas and oil separating plant (3), support housing (4), gear shaft (5), ball bearing (6), mechanical sealing device (7), the first annex (8), fitting seat fixing fitting (9);
Wherein: internal spline and profile by gear shaft (5) two ends connect form, connect identical fuel oil annex (1) and the first annex (8) of rotating speed, there is fitting seat fixing fitting (9) rear end of the first annex (8), gear shaft (5) coordinates the mode combining with spline joint that gas and oil separating plant (3) is installed with tightness, gear shaft (5) is with the roller bearing with mounting edge (2), ball bearing (6) is as being supported and fixed on support housing (4), mechanical sealing device (7) adopts stud connection form to be fixed on support housing (4), ensure the internal work environment that gear train assembly is stable.
2. according to the drive mechanism of employing multifunctional gear transmission shaft claimed in claim 1, it is characterized in that: described gear shaft (5) is hollow shaft structure.
CN201420007986.0U 2014-01-03 2014-01-03 Transmission structure adopting multifunctional gear transmission shaft Active CN203730715U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420007986.0U CN203730715U (en) 2014-01-03 2014-01-03 Transmission structure adopting multifunctional gear transmission shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420007986.0U CN203730715U (en) 2014-01-03 2014-01-03 Transmission structure adopting multifunctional gear transmission shaft

Publications (1)

Publication Number Publication Date
CN203730715U true CN203730715U (en) 2014-07-23

Family

ID=51200791

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420007986.0U Active CN203730715U (en) 2014-01-03 2014-01-03 Transmission structure adopting multifunctional gear transmission shaft

Country Status (1)

Country Link
CN (1) CN203730715U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122450A (en) * 2016-06-24 2016-11-16 中国航空工业集团公司沈阳发动机设计研究所 A kind of method solving not feel relieved because of generation of hot working clearance bearing and structure
CN109653873A (en) * 2018-11-13 2019-04-19 中国航发贵阳发动机设计研究所 A kind of aero-engine onboard generators multifunctional ports design method
CN110043632A (en) * 2019-04-13 2019-07-23 厦门众力达机械有限公司 A kind of gear shaft structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122450A (en) * 2016-06-24 2016-11-16 中国航空工业集团公司沈阳发动机设计研究所 A kind of method solving not feel relieved because of generation of hot working clearance bearing and structure
CN106122450B (en) * 2016-06-24 2019-06-28 中国航空工业集团公司沈阳发动机设计研究所 It is a kind of to solve to generate the method and structure that bearing is not felt relieved because of the hot working clearance
CN109653873A (en) * 2018-11-13 2019-04-19 中国航发贵阳发动机设计研究所 A kind of aero-engine onboard generators multifunctional ports design method
CN110043632A (en) * 2019-04-13 2019-07-23 厦门众力达机械有限公司 A kind of gear shaft structure
CN110043632B (en) * 2019-04-13 2020-07-07 厦门众力达机械有限公司 Gear shaft structure

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