Movable aviation hydraulic oil high-pressure oil source
By optimizing the structure and filtration system of the mobile aviation hydraulic oil high-pressure source, the problems of insufficient mobility and purification capacity have been solved, achieving efficient purification and convenient mobility, meeting the maintenance needs and safety standards of the aviation field.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-07
AI Technical Summary
Existing mobile aviation hydraulic high-pressure oil sources are poorly designed in terms of mobility, are too heavy, making them difficult to move easily in complex terrain and narrow spaces. Furthermore, their filtration and purification capabilities are insufficient, which can easily lead to impurities entering the system, shortening equipment lifespan, and failing to meet the maintenance needs and safety standards of the aviation industry.
It adopts a mobile frame design and is equipped with a main motor pump and an auxiliary motor pump. It undergoes multiple filtration processes through a stainless steel plate heat exchanger, return oil filter, oil cleanliness tester and high-pressure precision filter. Combined with ABB motor and Qunze internal shaft motor, it achieves stable oil supply and efficient purification. It is equipped with Mitsubishi PLC+HMI human-machine interface and Honeywell analog pressure sensor for electrical control. The whole uses SUS304 stainless steel oil tank and mobile frame structure.
It improves the purification quality of hydraulic oil, enhances the mobility and stability of equipment, meets the maintenance needs of the aviation industry, expands the scope of equipment use and emergency response speed, and extends equipment life.
Smart Images
Figure CN224093626U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of aviation hydraulic oil, specifically to a mobile aviation hydraulic oil high pressure oil source. BACKGROUND
[0002] In the aviation field, the hydraulic system is the core component part of key functions such as aircraft landing gear retraction, flight control surface control, and the hydraulic oil high pressure oil source as the power supply device of the hydraulic system, its performance and applicability directly affect the safe operation and maintenance efficiency of the aircraft. The mobile aviation hydraulic oil high pressure oil source plays an indispensable role in the aircraft ground maintenance, emergency fault handling and other work due to its flexible movement and adaptability to different operation scenes, which can effectively avoid the complex process of towing the aircraft to the fixed maintenance site and significantly improve the operation efficiency.
[0003] However, the existing mobile aviation hydraulic oil high pressure oil source still has many deficiencies. On the one hand, in terms of mobility, the structure of some equipment is not reasonable, the overall quality is too large, and there is a lack of efficient mobile auxiliary devices, which makes it difficult to move conveniently in the complex terrain and narrow operation space of the airport, greatly limits the use range and emergency response speed of the equipment, and at the same time, the filtration and purification capacity of the aviation hydraulic oil is insufficient, which easily leads to impurities mixing into the system, causing wear of hydraulic components, shortening the service life of the equipment, and being difficult to meet the growing maintenance needs and safety standards in the aviation field. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the utility model provides a mobile aviation hydraulic oil high pressure oil source, which solves the problems that the existing mobile aviation hydraulic oil high pressure oil source still has many deficiencies, on the one hand, in terms of mobility, the structure of some equipment is not reasonable, the overall quality is too large, and there is a lack of efficient mobile auxiliary devices, which makes it difficult to move conveniently in the complex terrain and narrow operation space of the airport, greatly limits the use range and emergency response speed of the equipment, and at the same time, the filtration and purification capacity of the aviation hydraulic oil is insufficient, which easily leads to impurities mixing into the system, causing wear of hydraulic components, shortening the service life of the equipment, and being difficult to meet the growing maintenance needs and safety standards in the aviation field.
[0005] The utility model provides the following technical scheme: a mobile aviation hydraulic oil high pressure oil source, including mobile frame, the top of mobile frame is provided with installation shell, the side of installation shell is equipped with observation port, be provided with the overhaul flying wing door on the observation port, two support trusses are installed to the both sides of the bottom of mobile frame, two wheels are symmetrically installed to the both sides of support truss, the top of mobile frame is fixed with installation bottom plate, be provided with oil tank on installation bottom plate;
[0006] A main motor pump is mounted at the top of the mobile frame. A constant-pressure variable displacement piston pump is installed at the end of the main motor pump. The constant-pressure variable displacement piston pump is connected to the oil tank via a first oil circuit connection pipe, which is equipped with a check valve. An auxiliary motor pump is installed on the side of the main motor pump. The auxiliary motor pump is fixedly connected to the mounting base plate via a mounting bracket. A variable displacement vane pump is installed at the bottom of the auxiliary motor pump. The side of the variable displacement vane pump is connected to the oil tank via a second oil circuit connection pipe, which is equipped with an overflow valve. A stainless steel plate heat exchanger is installed on the side of the motor pump, and a return oil connection pipe is installed on the stainless steel plate heat exchanger. A return oil filter is installed on the other side of the auxiliary motor pump. The return oil filter and the return oil connection pipe are connected by a first connecting pipe. An oil cleanliness detector is installed on the oil tank. The oil cleanliness detector and the return oil filter are connected by a second connecting pipe. A high-pressure precision filter is installed on the side of the oil cleanliness detector. The high-pressure precision filter and the oil cleanliness detector are connected by a third connecting pipe.
[0007] Preferred technical solution 1: An alarm is installed on one side of the top of the oil tank, and a digital display temperature and level gauge is installed on the side of the oil tank.
[0008] Preferred technical solution 2: There are two observation ports, and each of the two observation ports is equipped with a maintenance wing door.
[0009] Preferred technical solution 3: The bottom end of the main motor pump is connected to the mounting base plate by bolts.
[0010] This solution enables the main motor pump to operate more stably.
[0011] Preferred technical solution four: Two sets of return oil connection pipes are symmetrically arranged, and the two sets of return oil connection pipes are located on both sides of the stainless steel plate heat exchanger.
[0012] This solution enables users to connect multiple sets of oil pipes.
[0013] Preferred technical solution five: The bottom end of the high-pressure precision filter is connected to the oil tank.
[0014] This solution enables the filtered hydraulic oil to quickly return to the oil tank.
[0015] Compared with the prior art, this utility model provides a mobile high-pressure hydraulic oil source for aviation, which has the following advantages:
[0016] (1) This utility model has a mounting base plate fixed on a mobile frame, on which a main motor pump and an auxiliary motor pump are installed. The main motor pump and the auxiliary motor pump can pump the hydraulic oil into the stainless steel plate heat exchanger. The stainless steel plate heat exchanger then enters the return oil filter through the first connecting pipe. After passing through the oil cleanliness tester and the high-pressure precision filter, the oil enters the oil tank. This achieves multiple filtration of the hydraulic oil, which greatly improves the purification quality of the hydraulic oil and can meet the user's use and maintenance needs. In addition, the device adopts a mobile frame design, which is more convenient and has the advantages of higher stability, reliability, convenient maintenance and beautiful appearance. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0019] Figure 3 For the present utility model Figure 2 A schematic diagram of the structure of the mounting base plate;
[0020] Figure 4 For the present utility model Figure 3 A side view of the structure of the intermediate oil tank.
[0021] In the diagram: 1. Mobile frame; 2. Mounting housing; 3. Observation port; 4. Inspection wing door; 5. Support truss; 6. Wheels; 7. Mounting base plate; 8. Oil tank; 9. Main motor pump; 10. Constant pressure variable displacement piston pump; 11. First oil circuit connection pipe; 12. Check valve; 13. Auxiliary motor pump; 14. Mounting bracket; 15. Variable displacement vane pump; 16. Second oil circuit connection pipe; 17. Overflow valve; 18. Stainless steel plate heat exchanger; 19. Return oil connection pipe; 20. Return oil filter; 21. First connecting pipe; 22. Oil cleanliness detector; 23. Second connecting pipe; 24. High pressure precision filter; 25. Third connecting pipe; 26. Alarm; 27. Digital display temperature and level gauge. Detailed Implementation
[0022] Please see Figures 1-4 ,
[0023] Example 1: A mobile aviation hydraulic high-pressure oil source includes a mobile frame 1, a mounting housing 2 at the top of the mobile frame 1, an observation port 3 on the side of the mounting housing 2, a maintenance wing door 4 on the observation port 3, two support trusses 5 on both sides of the bottom of the mobile frame 1, two wheels 6 symmetrically mounted on both sides of the support trusses 5, a mounting base plate 7 fixed at the top of the mobile frame 1, and an oil tank 8 on the mounting base plate 7.
[0024] A main motor pump 9 is installed at the top of the mobile frame 1. A constant pressure variable displacement piston pump 10 is installed at the end of the main motor pump 9. The constant pressure variable displacement piston pump 10 is connected to the oil tank 8 through a first oil circuit connection pipe 11. A one-way valve 12 is installed on the first oil circuit connection pipe 11. An auxiliary motor pump 13 is installed on the side of the main motor pump 9. The auxiliary motor pump 13 is fixedly connected to the mounting base plate 7 through a mounting bracket 14. A variable displacement vane pump 15 is installed at the bottom of the auxiliary motor pump 13. The side of the variable displacement vane pump 15 is connected to the oil tank 8 through a second oil circuit connection pipe 16.
[0025] An overflow valve 17 is installed on the second oil circuit connecting pipe 16. A stainless steel plate heat exchanger 18 is installed on the side of the auxiliary motor pump 13. A return oil connecting pipe 19 is installed on the stainless steel plate heat exchanger 18. A return oil filter 20 is installed on the other side of the auxiliary motor pump 13. The return oil filter 20 and the return oil connecting pipe 19 are connected by a first connecting pipe 21. An oil cleanliness detector 22 is installed on the oil tank 8. The oil cleanliness detector 22 and the return oil filter 20 are connected by a second connecting pipe 23. A high-pressure precision filter 24 is installed on the side of the oil cleanliness detector 22. The high-pressure precision filter 24 and the oil cleanliness detector 22 are connected by a third connecting pipe 25. An alarm 26 is installed on one side of the top of the oil tank 8. A digital display temperature and level gauge 27 is installed on the side of the oil tank 8.
[0026] There are two observation ports 3, and each observation port 3 is equipped with a maintenance wing door 4.
[0027] Example 2: The difference between this example and Example 1 is that the bottom end of the main motor pump 9 is connected to the mounting base plate 7 by bolts.
[0028] This makes the operation of the main motor pump 9 more stable.
[0029] Example 3: The difference between this example and Example 1 is that two sets of return oil connection pipes 19 are symmetrically arranged, and the two sets of return oil connection pipes 19 are located on both sides of the stainless steel plate heat exchanger 18.
[0030] This allows users to connect multiple sets of oil pipes.
[0031] Example 4: The difference between this example and Example 1 is that the bottom end of the high-pressure precision filter 24 is connected to the oil tank 8.
[0032] This allows the filtered hydraulic oil to quickly return to the oil tank 8.
[0033] In this embodiment, existing mobile aviation hydraulic high-pressure oil sources still have many shortcomings. On the one hand, in terms of mobility, some equipment has an unreasonable structural design, excessive overall weight, and lacks efficient mobile auxiliary devices, making it difficult to move conveniently in complex airport terrain and narrow working spaces, which greatly limits the scope of use and emergency response speed. At the same time, the filtering and purification capacity of aviation hydraulic oil is insufficient, which easily leads to impurities entering the system, causing wear of hydraulic components, shortening the service life of equipment, and making it difficult to meet the growing maintenance needs and safety standards in the aviation field.
[0034] In summary, in practical implementation, this device is specifically designed for testing aviation hydraulic components. It provides constant pressure and constant flow, has both open and closed working modes, is equipped with multi-stage filtration, an oil cleanliness detector 22, and digital pressure regulation, and features a fully enclosed mobile structure design to meet the operational requirements of the hydraulic transmission mechanism.
[0035] The main motor pump 9 uses an ABB motor to power a constant pressure variable displacement piston pump 10. The outlet of the constant pressure variable displacement piston pump 10 is equipped with a check valve 12. The auxiliary motor pump 13 uses a Qunze internal shaft motor to power a variable displacement vane pump 15. The outlet of the variable displacement vane pump 15 is equipped with an overflow valve 17. The return oil circuit is equipped with a stainless steel plate heat exchanger 18, a return oil filter 20, a high pressure precision filter 24, and an oil cleanliness tester 22.
[0036] In terms of electrical control, this device uses a Mitsubishi PLC + HMI human-machine interface, and Schneider Electric electrical components. The high-pressure pipeline uses Manuli, and the pressure acquisition uses Honeywell analog pressure sensors. The cooling system is equipped with a stainless steel brazed heat exchanger (with an explosion-proof safety valve). The oil temperature and liquid level are displayed by digital temperature and liquid level gauges 27 (with both digital and analog signal outputs). The filtration system is equipped with a return oil filter 20 and a high-pressure precision filter 24 for filtration. The oil tank 8 assembly is made of SUS304 stainless steel and features an integrated movable frame design, which provides advantages such as higher stability, reliability, convenient maintenance, and aesthetic appearance.
Claims
1. A mobile high-pressure hydraulic oil source for aviation, comprising a mobile frame (1), characterized in that: The top of the mobile frame (1) is provided with a mounting housing (2), and the side of the mounting housing (2) is provided with an observation port (3). The observation port (3) is provided with a maintenance wing door (4). Two support trusses (5) are installed on both sides of the bottom of the mobile frame (1). Two wheels (6) are symmetrically installed on both sides of the support trusses (5). The top of the mobile frame (1) is fixed with a mounting base plate (7), and an oil tank (8) is provided on the mounting base plate (7). A main motor pump (9) is installed at the top of the mobile frame (1). A constant pressure variable displacement piston pump (10) is installed at the end of the main motor pump (9). The constant pressure variable displacement piston pump (10) is connected to the oil tank (8) through a first oil circuit connecting pipe (11). A one-way valve (12) is installed on the first oil circuit connecting pipe (11). An auxiliary motor pump (13) is installed on the side of the main motor pump (9). The auxiliary motor pump (13) is fixedly connected to the mounting base plate (7) through a mounting bracket (14). A variable displacement vane pump (15) is installed at the bottom of the auxiliary motor pump (13). The side of the variable displacement vane pump (15) is connected to the oil tank (8) through a second oil circuit connecting pipe (16). An overflow valve (17) is installed on the second oil circuit connecting pipe (16). A stainless steel plate heat exchanger (18) is provided on the side of the auxiliary motor pump (13). A return oil connection pipe (19) is provided on the stainless steel plate heat exchanger (18). A return oil filter (20) is provided on the other side of the auxiliary motor pump (13). The return oil filter (20) and the return oil connection pipe (19) are connected by a first connecting pipe (21). An oil cleanliness detector (22) is installed on the oil tank (8). The oil cleanliness detector (22) and the return oil filter (20) are connected by a second connecting pipe (23). A high-pressure precision filter (24) is provided on the side of the oil cleanliness detector (22). The high-pressure precision filter (24) and the oil cleanliness detector (22) are connected by a third connecting pipe (25).
2. The mobile high-pressure hydraulic oil source for aviation as described in claim 1, characterized in that: An alarm (26) is provided on one side of the top of the oil tank (8), and a digital display temperature and level gauge (27) is installed on the side of the oil tank (8).
3. The mobile high-pressure hydraulic oil source for aviation as described in claim 2, characterized in that: There are two observation ports (3), and each of the two observation ports (3) is equipped with a maintenance wing door (4).
4. A mobile high-pressure aviation hydraulic oil source according to claim 3, characterized in that: The bottom end of the main motor pump (9) is connected to the mounting base plate (7) by bolts.
5. A mobile high-pressure aviation hydraulic oil source according to claim 4, characterized in that: Two sets of return oil connection pipes (19) are symmetrically arranged, and the two sets of return oil connection pipes (19) are located on both sides of the stainless steel plate heat exchanger (18).
6. A mobile high-pressure aviation hydraulic oil source according to claim 5, characterized in that: The bottom end of the high-pressure precision filter (24) is connected to the oil tank (8).