CN208616197U - L-type transmission case for aircraft propeller - Google Patents
L-type transmission case for aircraft propeller Download PDFInfo
- Publication number
- CN208616197U CN208616197U CN201820823980.9U CN201820823980U CN208616197U CN 208616197 U CN208616197 U CN 208616197U CN 201820823980 U CN201820823980 U CN 201820823980U CN 208616197 U CN208616197 U CN 208616197U
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- China
- Prior art keywords
- gear
- shell
- support
- driven gear
- casing
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Abstract
The utility model discloses a kind of L-type transmission cases for aircraft propeller, it includes shell, driving gear, driven gear and output shaft；The driving gear can be rotated to support on shell；The driven gear can be rotated to support on shell, and the driven gear engages connection with the driving gear, and forms bevel gear pair；The output shaft can be rotated to support on shell, and the output shaft is connected with the driven gear, and the axis of the output shaft is overlapped with the axis of the driven gear.The utility model can turn back in power transmission direction to vertical direction, and helicopter is made to be able to use the turboaxle motor for being horizontally mounted and exporting, and promote the performance of aircraft complete machine.
Description
Technical field
The utility model relates to a kind of L-type transmission cases for aircraft propeller.
Background technique
Currently, light helicopters first wife's vertical piston engine such as rood prestige A600, the power transmission of main rotor need not turn
To only with the parallel belt transmission of two-stage as main reducing gear, with stable drive, low noise, easy to manufacture, at low cost etc.
A little, but the in-flight shutdown rate of piston-mode motor is high, and power to weight ratio is low (150Kw/80kg), limits the performance water of complete machine
It is flat.Such as replace piston-mode motor with turboaxle motor, the performance level of helicopter complete machine can be made by carrying out power upgrading
Significantly promoted.But turboaxle motor generallys use and is horizontally mounted and exports, it is necessary to which transmission direction is turned back to Vertical Square
To this is transmission link necessary to most of Helicopter Main Reducers.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and is provided a kind of for aircraft spiral shell
Revolve paddle L-type transmission case, it can turn back in power transmission direction to vertical direction, make helicopter be able to use be horizontally mounted and
The turboaxle motor of output promotes the performance of aircraft complete machine.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of L-type for aircraft propeller
Transmission case, it includes:
Shell；
Driving gear, the driving gear can be rotated to support on shell；
Driven gear, the driven gear can be rotated to support on shell, the driven gear and the driving gear
Engagement connection, and form bevel gear pair；
Output shaft, the output shaft can be rotated to support on shell, and the output shaft is connected with the driven gear, and
And the axis of the output shaft is overlapped with the axis of the driven gear.
A kind of specific structure of driving gear is further provided, the driving gear includes main gear section and main support shaft
Portion, the main bearing axle portion can be rotated to support on shell, and the main gear section engages connection with the driven gear.
Further, the main bearing axle portion can be rotated to support on shell by least one main step bearing.
Further, the main step bearing along it is main bearing axle portion axial direction be set side by side there are two.
Further for the power input equipment facilitated outside connection, for example turboaxle motor, is used for vehicle spin
The L-type transmission case of paddle further includes power input connecting component, and the power input connecting component includes power input adapter flange,
The power input adapter flange is fixedly connected with the driving gear.
Further provide a kind of specific structure of driven gear, the driven gear includes from gear part and from support shaft
Portion, it is described to can be rotated to support on shell from bearing axle portion, it is described to engage connection with the driving gear from gear part.
Further, described to can be rotated to support on shell by least one from bearing support from bearing axle portion.
Further, it is described from bearing support along from bearing axle portion axial direction be set side by side there are two.
Further for facilitating the L-type transmission case to aircraft propeller output power, for aircraft propeller also to wrap
Power output connecting component is included, the power output connecting component includes output adapter flange, the output adapter flange and institute
Output shaft is stated to be fixedly connected.
Further for the needs for adapting to turboaxle motor output revolving speed and revolution speed of propeller, the driving gear and institute
The gear ratio for stating driven gear is 29:36.
After above-mentioned technical proposal, the utility model inputs adapter flange by power and imparts power to driving tooth
Wheel, driving gear rotation drive driven gear rotation, and driven gear drives output shaft to rotate again, and output shaft is passing through output switching
Flange and belt wheel pair impart power to propeller, drive propeller rotational, due to driving gear and driven gear composition cone tooth
Wheel set, the axial direction of driving gear are horizontal direction, and the axial direction of driven gear is vertical direction, so as to by power transmission direction
It turns back to vertical direction, helicopter is made to be able to use the turboaxle motor for being horizontally mounted and exporting, promote aircraft complete machine
Performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the L-type transmission case for aircraft propeller of the utility model.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
As shown in Figure 1, a kind of L-type transmission case for aircraft propeller, it includes:
Shell；
Driving gear 1, the driving gear 1 can be rotated to support on shell；
Driven gear 2, the driven gear 2 can be rotated to support on shell, the driven gear 2 and the driving tooth
Wheel engagement connection, and form bevel gear pair；
Output shaft 7, the output shaft 7 can be rotated to support on shell by a bearing 71, the output shaft 7 with it is described
Driven gear 2 is connected, and the axis of the output shaft 7 is overlapped with the axis of the driven gear 2.
In the present embodiment, the axial direction of driving gear 1 is horizontal direction, and the axial direction of driven gear 2 is vertical direction.
As shown in Figure 1, the driving gear 1 includes main gear section 11 and main bearing axle portion 12, the main bearing axle portion 12
It can be rotated to support on shell, the main gear section 11 engages connection with the driven gear 2.
As shown in Figure 1, the main bearing axle portion 12 can be rotated to support on shell by least one main step bearing 3
On；Specifically, the main step bearing 3 along it is main bearing axle portion 12 axial direction be set side by side there are two, two main step bearings
All can be angular contact ball bearing, specific model 7205.
As shown in Figure 1, the L-type transmission case for aircraft propeller further includes power input connecting component, the power
Input connecting component includes power input adapter flange 4, and the power input adapter flange 4 and the driving gear 1 are fixed and connected
It connects；Diaphragm 14 is connected on the power input adapter flange 4.
As shown in Figure 1, the driven gear 2 include from gear part 21 and from bearing axle portion 22, it is described from bearing axle portion 22
It can be rotated to support on shell, it is described to engage connection with the driving gear 1 from gear part 21.
As shown in Figure 1, described can be rotated to support on shell from bearing support 5 by least one from bearing axle portion 22
On；Specifically, it is described from bearing support 5 along from bearing axle portion 22 axial direction be set side by side there are two；Two from bearing support 5
It also is angular contact ball bearing, specific model 7212.
As shown in Figure 1, the L-type transmission case for aircraft propeller further includes power output connecting component, the power
Exporting connecting component includes output adapter flange 6, and the output adapter flange 6 is fixedly connected with the output shaft 7；Specifically,
The position of the connection output adapter flange 6 of output shaft 7 is tapering, and the position that the output adapter flange 6 is sleeved on output shaft 7 is
Taper hole, taper hole is inserted in tapering, and is locked by locking device.Output adapter flange 6 is connected with drive pulley, drive pulley
Top is supported in belt wheel mounting base by double 6206 ball bearing, is born belt tension, is mounted with two lubricating oil on shell
Nozzle draws the oil lubrication gear and bearing of turboaxle motor, installs conical drains receptacle in housing bottom, takes out for oil pump
To oil tank.
The gear ratio of the driving gear 1 and the driven gear 2 can be 29:36, and but not limited to this.
Specifically, shell includes casing upper cover 81, casing 82, casing lower cover 83 and bearing block assembly 84, casing upper cover 81
It is connect with the upper end of casing 82, casing lower cover 83 is connect with the lower end of casing 82, and bearing block assembly 84 is connected to the right side of casing 82
Portion, the whole of driven gear 2 and the part of output shaft 7 are located at what casing upper cover 81, casing 82 and the connection of casing lower cover 83 were formed
In seal chamber, the main gear section 11 of driving gear 1 is located in the seal chamber, and the main bearing axle portion 12 of driving gear 1 is located at bearing
On holder assembly 84.
The working principle of the utility model is as follows:
The utility model inputs adapter flange 4 by power and imparts power to driving gear 1, and driving gear 1 rotates band
Dynamic driven gear 2 rotates, and driven gear 2 drives output shaft 7 to rotate again, and output shaft 7 is by output adapter flange 6 and with wheel set
Propeller is imparted power to, propeller rotational is driven, since driving gear 1 and driven gear 2 form bevel gear pair, driving tooth
The axial direction of wheel 1 is horizontal direction, and the axial direction of driven gear 2 is vertical direction, so as to turn back in power transmission direction to vertical
Histogram is to making helicopter be able to use the turboaxle motor for being horizontally mounted and exporting, promote the performance of aircraft complete machine.
Particular embodiments described above, to the utility model solve the technical issues of, technical scheme and beneficial effects into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvement done
Deng should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of L-type transmission case for aircraft propeller, which is characterized in that it includes:
Shell；
Driving gear (1), the driving gear (1) can be rotated to support on shell；
Driven gear (2), the driven gear (2) can be rotated to support on shell, the driven gear (2) and the active
Gear engagement connection, and form bevel gear pair；
Output shaft (7), the output shaft (7) can be rotated to support on shell, the output shaft (7) and the driven gear
(2) it is connected, and the axis of the output shaft (7) is overlapped with the axis of the driven gear (2)；
Power inputs connecting component, and the power input connecting component includes power input adapter flange (4), the power input
Adapter flange (4) is fixedly connected with the driving gear (1).
Power output connecting component, the power output connecting component include output adapter flange (6), the output adapter flange
(6) it is fixedly connected with the output shaft (7)；
Wherein, the driving gear (1) includes main gear section (11) and main bearing axle portion (12), and the main bearing axle portion (12) can
It is rotatably supported on shell, the main gear section (11) engages connection with the driven gear (2)；
Shell includes casing upper cover (81), casing (82), casing lower cover (83) and bearing block assembly (84), casing upper cover (81) with
The upper end of casing (82) connects, and casing lower cover (83) is connect with the lower end of casing (82), and bearing block assembly (84) is connected to casing
(82) right part, the whole of driven gear (2) and the part of output shaft (7) are located at casing upper cover (81), casing (82) and casing
In the seal chamber that lower cover (83) connection is formed, the main gear section (11) of driving gear (1) is located in the seal chamber, driving gear
(1) main bearing axle portion (12) is located on bearing block assembly (84).
2. the L-type transmission case according to claim 1 for aircraft propeller, it is characterised in that: the main support shaft
Portion (12) can be rotated to support on shell by least one main step bearing (3).
3. the L-type transmission case according to claim 2 for aircraft propeller, it is characterised in that: the main support shaft
Hold (3) along it is main bearing axle portion (12) axial direction be set side by side there are two.
4. the L-type transmission case according to claim 1 for aircraft propeller, it is characterised in that: the driven gear
(2) include from gear part (21) and from bearing axle portion (22), it is described from bearing axle portion (22) can be rotated to support on shell, institute
It states and engages connection from gear part (21) with the driving gear (1).
5. the L-type transmission case according to claim 4 for aircraft propeller, it is characterised in that: described from support shaft
Portion (22) can be rotated to support on shell by least one from bearing support (5).
6. the L-type transmission case according to claim 5 for aircraft propeller, it is characterised in that: described from support shaft
Hold (5) along from bearing axle portion (22) axial direction be set side by side there are two.
7. the L-type transmission case according to claim 1 for aircraft propeller, it is characterised in that: the driving gear
(1) and the gear ratio of the driven gear (2) is 29:36.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823980.9U CN208616197U (en) | 2018-05-30 | 2018-05-30 | L-type transmission case for aircraft propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823980.9U CN208616197U (en) | 2018-05-30 | 2018-05-30 | L-type transmission case for aircraft propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208616197U true CN208616197U (en) | 2019-03-19 |
Family
ID=65700852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823980.9U Active CN208616197U (en) | 2018-05-30 | 2018-05-30 | L-type transmission case for aircraft propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208616197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852578A (en) * | 2020-07-24 | 2020-10-30 | 中国科学院工程热物理研究所 | Main bearing case power output bevel gear bearing seat structure |
-
2018
- 2018-05-30 CN CN201820823980.9U patent/CN208616197U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852578A (en) * | 2020-07-24 | 2020-10-30 | 中国科学院工程热物理研究所 | Main bearing case power output bevel gear bearing seat structure |
| CN111852578B (en) * | 2020-07-24 | 2023-02-21 | 中国科学院工程热物理研究所 | Main bearing case power output bevel gear bearing seat structure |
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