An enclosed loading system for electric power in an aircraft transmission system

Abstract

This invention relates to the field of machinery, specifically an electric power closed-loop loading system for an aircraft transmission system. It includes a low-voltage stage drive motor, a central transmission housing, a product mounting bracket, a high-voltage stage center support, a speed-increasing gearbox, a coupling, a main drive motor, a loading motor, a front transmission housing, a rear transmission housing, an adapter sleeve, a constant-speed transmission drive motor, and a motor support base. The front and rear transmission housings are mounted under the product mounting bracket; the central transmission housing is fixed to the product mounting bracket; the adapter sleeve is mounted on the rear transmission housing; the constant-speed transmission drive motor is connected to the adapter sleeve; the loading motor is connected to the adapter sleeve and applies load to the front, rear, and central transmission housings; the main drive motor is mounted on the support base and drives the speed-increasing gearbox via the coupling. By designing this electric power closed-loop loading system, the testing of the front, rear, and central transmission housings on a test bench is completed.

Description

Technical Field

[0001] This invention relates to the field of mechanics, and more particularly to an electric power closed loading system for an aircraft transmission system. Background Technology

[0002] The aircraft transmission system consists of three parts: the front transmission casing, the central transmission casing, and the rear transmission casing. During testing, the transmission system needs to be loaded. Traditional loading methods rely on hydraulic oil, increasing the return oil pressure of the plunger pump to increase its load and thus load the transmission system. The heat generated during loading is carried away by cooling water, which is energy-intensive. A large amount of cooling water is needed to form a circulation system to ensure all heat generated during heating is removed, achieving heat exchange. This increases the airborne load and space constraints, hindering the advancement and development of aircraft transmission systems. Furthermore, increasing the return oil pressure also poses certain risks and hidden dangers. Therefore, a more suitable closed-loop loading system for aircraft transmissions should be proposed, reducing safety hazards, saving internal space, and lightening the load, thus better meeting the requirements of the ever-evolving aviation industry. Summary of the Invention

[0003] This invention relates to the field of machinery, and more particularly to an electric power closed loading system for an aircraft transmission system, which completes test bench tests on the front transmission casing, the central transmission casing, and the rear transmission casing.

[0004] This invention relates to the field of machinery, and more particularly to a closed-loop loading system for electrical power in an aircraft transmission system. Its features include: a low-voltage stage drive motor, a central transmission housing, a product mounting bracket, a high-voltage stage center support, a speed-increasing gearbox, a coupling, a main drive motor, a loading motor, a front transmission housing, a rear transmission housing, an adapter sleeve, a constant-speed drive motor, and a motor support base. The front and rear transmission housings are mounted under the product mounting bracket; the central transmission housing is fixed to the product mounting bracket; the adapter sleeve is mounted on the rear transmission housing; the constant-speed drive motor is connected to the adapter sleeve; the loading motor is connected to the adapter sleeve and loads the front, rear, and central transmission housings; the main drive motor is mounted on the support base and drives the speed-increasing gearbox via the coupling; the speed-increasing gearbox is connected to the high-voltage stage center support and drives one transmission chain of the central transmission housing; the low-voltage stage drive motor is connected to the central transmission housing and drives the other transmission chain of the central transmission housing.

[0005] Furthermore, the loading system has three driving systems.

[0006] Furthermore, the loading system converts industrial AC power into DC power through a rectifier unit to power the motor.

[0007] Furthermore, the DC power generated by the load motor is converted into AC power by the inverter unit and fed back to the power grid.

[0008] Furthermore, the loading system can simultaneously test the front drive housing, the central drive housing, and the rear drive housing.

[0009] Furthermore, the front drive housing, central drive housing, and rear drive housing are all fixed to the product mounting bracket.

[0010] Furthermore, the coaxiality of the main drive motor and the speed-increasing gearbox can be adjusted by adding or removing adjusting shims between the main drive motor and the motor support.

[0011] Furthermore, the casing is connected to the loading motor via an adapter sleeve.

[0012] Furthermore, the high-pressure stage stop point adjusts the distance between the speed-increasing gearbox and the central drive housing.

[0013] Furthermore, the speed of the main drive motor is increased by using a speed-increasing gearbox.

[0014] Furthermore, the three drive systems can start simultaneously and operate synchronously at a certain proportional rate.

[0015] Invention effects:

[0016] This closed-loop electric power loading system for aircraft transmission systems solves the problem of significant energy waste during testing of the front, central, and rear transmission housings. It fully meets the requirements of the test bench and boasts advantages such as stability, reliability, ease of operation, energy saving, and high efficiency. It also provides technical experience for closed-loop electric power loading testing. The closed-loop loading system reduces safety hazards, saves internal space, and lightens the load, better meeting the demands of the ever-evolving aviation industry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the closed-loop loading system for the electric power of the aviation transmission system of the present invention.

[0018] Among them, 1-low voltage stage drive motor, 2-central transmission housing, 3-product mounting bracket, 4-high voltage stage center support, 5-speed increasing gearbox, 6-coupling, 7-main drive motor, 8-loading motor, 9-front transmission housing, 10-rear transmission housing, 11-adapter sleeve, 12-constant speed transmission drive motor, 13-motor support base. Detailed Implementation

[0019] This invention provides a closed-loop loading system for the electrical power of an aircraft transmission system, such as... Figure 1As shown, the system includes: a low-voltage drive motor 1, a central transmission housing 2, a product mounting bracket 3, a high-voltage intermediate support 4, a speed-increasing gearbox 5, a coupling 6, a main drive motor 7, a loading motor 8, a front transmission housing 9, a rear transmission housing 10, an adapter sleeve 11, a constant-speed drive motor 12, and a motor support base 13. The low-voltage drive motor 1 is connected to the central transmission housing 2, and the central transmission housing 2 is connected to the high-voltage intermediate support 4, both mounted on the product mounting bracket 3. The high-voltage intermediate support 4 is connected to the speed-increasing gearbox 5, which is connected to the main drive motor 7 via the coupling 6. The main drive motor 7 is mounted on the motor support base 13. The front transmission housing 9 and the rear transmission housing 10 are fixed to the product mounting bracket 3. The loading motor 8 is connected to the front transmission housing 9, and the adapter sleeve 11 is mounted on the rear transmission housing 10. The adapter sleeve 11 is connected to the constant-speed drive motor 12.

[0020] The front drive housing, central drive housing, and rear drive housing are respectively mounted on the product mounting frame. The main drive motor, low-voltage drive motor, and constant speed drive motor realize the operation of the transmission system. The loading motor realizes the test loading function. The electrical power of the aviation transmission system is closed through the inverter unit.

[0021] A closed-loop loading system for an aviation transmission system is characterized by comprising: a low-voltage stage drive motor, a central transmission housing, a product mounting bracket, a high-voltage stage center support, a speed-increasing gearbox, a coupling, a main drive motor, a loading motor, a front transmission housing, a rear transmission housing, an adapter sleeve, a constant-speed transmission drive motor, and a motor support base. The front and rear transmission housings are mounted under the product mounting bracket; the central transmission housing is fixed to the product mounting bracket; the adapter sleeve is mounted on the rear transmission housing; the constant-speed transmission drive motor is connected to the adapter sleeve; the loading motor is connected to the adapter sleeve and loads the front, rear, and central transmission housings; the main drive motor is mounted on the support base and drives the speed-increasing gearbox via the coupling; the speed-increasing gearbox is connected to the high-voltage stage center support and drives one transmission chain of the central transmission housing; the low-voltage stage drive motor is connected to the central transmission housing and drives another transmission chain of the central transmission housing. The loading system has three drive systems. Different drive systems correspond to different working requirements, enabling faster and more efficient response to drive time and facilitating maintenance. The loading system converts industrial AC power into DC power via a rectifier unit to power the motor. This solves the problem of DC power conversion and provides a safer and faster guarantee for DC power supply. The DC power generated by the loading motor is converted back into AC power by an inverter unit and fed back to the grid. The conversion between DC and AC power by the inverter unit can obtain corresponding power resources according to different usage scenarios. The loading system can simultaneously test the front drive housing, central drive housing, and rear drive housing. Simultaneous testing of three housings can improve utilization and shorten testing time. It can also obtain transmission status data of different housings. The front drive housing, central drive housing, and rear drive housing are all fixed on the product mounting bracket. The coaxiality of the main drive motor and the speed-increasing gearbox can be adjusted by adding or removing adjusting shims between the main drive motor and the motor support. The adjusting shims can make appropriate adjustments according to different coaxiality requirements to better ensure coaxiality. The housing is connected to the loading motor via an adapter sleeve. The adapter sleeve can meet the connection between different loading motors and housings, achieving more diverse connection methods. The high-voltage stage stop point adjustment controls the distance between the speed-increasing gearbox and the central drive housing, better ensuring the required distance between them. The speed-increasing gearbox increases the speed of the main drive motor, further improving its performance and meeting operational needs. The three drive systems can start simultaneously and operate synchronously at a specific proportional speed. Different drive systems cater to different operational requirements, enabling faster and more efficient response times and facilitating maintenance.

Claims

1. A closed-loop loading system for electrical power in an aircraft transmission system, characterized in that, include: The system comprises a low-voltage drive motor, a central transmission housing, a product mounting bracket, a high-voltage stage stop point, a speed-increasing gearbox, a coupling, a main drive motor, a loading motor, a front transmission housing, a rear transmission housing, an adapter sleeve, a constant-speed drive motor, and a motor support base. The front and rear transmission housings are mounted under the product mounting bracket; the central transmission housing is fixed to the product mounting bracket; the adapter sleeve is mounted on the rear transmission housing; the constant-speed drive motor is connected to the adapter sleeve; the loading motor is connected to the adapter sleeve and loads the front, rear, and central transmission housings; the main drive motor is mounted on the support base and drives the speed-increasing gearbox via the coupling; the speed-increasing gearbox is connected to the high-voltage stage stop point and drives one transmission chain of the central transmission housing; the low-voltage drive motor is connected to the central transmission housing and drives the other transmission chain of the central transmission housing.

2. The loading system according to claim 1, characterized in that, There are three drive systems in total.

3. The loading system according to claim 1, characterized in that, The industrial AC power is converted into DC power by a rectifier unit to power the motor.

4. The loading system according to claim 1, characterized in that, The DC power generated by the motor is converted into AC power by the inverter unit and fed back to the power grid.

5. The loading system according to claim 1, characterized in that, It can test the front drive housing, the central drive housing, and the rear drive housing simultaneously.

6. The loading system according to claim 1, characterized in that, The front drive housing, central drive housing, and rear drive housing are all fixed to the product mounting bracket.

7. The loading system according to claim 1, characterized in that, The coaxiality between the main drive motor and the speed-increasing gearbox can be adjusted by adding or removing the adjusting shims between the main drive motor and the motor support.

8. The loading system according to claim 1, characterized in that, The casing is connected to the loading motor via an adapter sleeve.

9. The loading system according to claim 1, characterized in that, The high-pressure stage stop point adjusts the distance between the speed-increasing gearbox and the central drive housing.

10. The loading system according to claim 1, characterized in that, The speed of the main drive motor is increased by using a speed-increasing gearbox.

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