Aircraft engine starting and oil seal oil collecting device

Abstract

The utility model relates to an aircraft engine starting and oil seal oil receiving device capable of realizing oil-gas separation and up-to-standard emission, aiming at solving the problems of aircraft and environment pollution caused by direct emission of starting and oil seal and safety risk caused by accumulated emission for a long time. Which comprises an electric flat car and is characterized in that a transverse guide rail assembly is arranged on the electric flat car, a lifting platform is arranged on the transverse guide rail assembly, an air entraining and filtering assembly and an electric control box are arranged on the lifting platform, the air entraining and filtering assembly comprises an air collecting box, a filtering box and a fan which are arranged front and back, and a discharging opening is formed in a fan shell. A front panel of the gas collection tank is provided with a gas collection port corresponding to an aircraft tail nozzle.

Description

Technical Field

[0001] The utility model relates to an oil mist collecting and processing device for an aircraft engine nozzle, in particular to an oil mist collecting device for starting and sealing an aircraft engine. Background Art

[0002] For a long time, the military and civil aviation maintenance field has not collected and filtered the oil mist discharged from the engine when starting and sealing the engine. The oil mist is directly discharged into the environment during the engine starting and sealing work, causing serious pollution to the atmosphere, soil and groundwater. It will also pollute the aircraft tires, cockpit covers and other parts. The need to relocate the work site causes a waste of manpower and working hours, which greatly restricts the efficiency of engine replacement (starting and sealing work is mainly performed when replacing the engine), affecting the engine dispatch rate. The main difficulty lies in the large exhaust volume during engine starting and sealing, with the maximum air volume exceeding 10,000m 3 / h, and the oil mist concentration and atomization degree are high. When processing, it is necessary to comprehensively consider the oil mist removal rate and airflow distortion in the oil-gas separation process. It is necessary to efficiently remove the oil mist and ensure that the airflow distortion is acceptable. It is difficult to coordinate the above two indicators. How to solve the oil-gas separation and flow field distortion problems of large air volume and high-energy oil mist-containing gas has always been a technical difficulty. Utility Model Content

[0003] The utility model aims to provide an aircraft engine starter and oil seal oil collection device which can realize oil and gas separation and meet emission standards, so as to solve the long-standing safety risk problems of pollution to aircraft and environment and cumulative emissions caused by direct emissions from starters and oil seals.

[0004] The technical solution of the utility model is: an aircraft engine starter, oil seal and oil collection device, including an electric flatbed car, which is special in that: a transverse guide rail assembly is arranged on the electric flatbed car, a lifting platform is arranged on the transverse guide rail assembly, an air bleed filter assembly and an electric control box are arranged on the lifting platform, the air bleed filter assembly includes an air collecting box, a filter box and a fan arranged front and back, a discharge port is arranged on the fan casing, and an air collecting port corresponding to the aircraft tail nozzle is arranged on the front panel of the air collecting box.

[0005] Furthermore, the transverse guide rail assembly includes a guide rail assembly frame fixed on the electric flatbed truck, a screw nut mechanism arranged at the center position of the guide rail assembly frame along the width direction and adjusted by a hand wheel, guide rails arranged on both sides of the guide rail assembly frame along the width direction, and limit blocks arranged on the inner side of the guide rail assembly frame corresponding to the positions of the two ends of the guide rails.

[0006] Furthermore, the lifting platform includes a platform base plate, a platform panel, a fixed axis plate arranged at the center position of the lower surface of the platform base plate and driven to move laterally by a transverse guide rail assembly, a slide arranged on the lower surface of the platform base plate and seated on the transverse guide rail assembly, and a top plate platform arranged at the middle position of the front end of the platform panel, a manual screw lifter arranged between the platform base plate and the platform panel, the filter box is fixed on the top plate platform, the electric control box is fixed on the platform base plate, and there are three manual screw lifters which are respectively located on the left and right sides of the front end and the middle position of the rear end of the platform base plate.

[0007] Furthermore, a filter screen is arranged in the filter box, and the filter screen includes steel wire, glass fiber and resin filter material arranged from front to back.

[0008] Furthermore, the electric flatbed vehicle includes a frame, an active steering wheel arranged at the rear of the frame, a motor drive integrated unit, driven directional wheels respectively arranged at the left and right sides of the front of the frame, and adjustable feet arranged at both sides of the frame.

[0009] The beneficial effects of the utility model are: the air collecting port of the air collecting box is aligned with the tail nozzle of the aircraft engine through the transverse guide rail assembly and the adjusting mobile platform, the oil mist generated during the engine start and oil sealing process is collected by the air collecting box, and the oil mist is filtered through the filter box under the negative pressure suction of the fan, so as to achieve oil and gas separation and meet the emission standards. The problems of oil mist polluting the aircraft and the accumulation of landing oil during engine start and oil sealing are solved, and the number of operators is reduced, the maintenance workload is reduced, the operation time is saved, and the efficiency of engine replacement is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 yes Figure 1 Left view of

[0012] Figure 3 yes Figure 1 A top view of

[0013] Figure 4 yes Figure 1 a top view of the middle transverse rail assembly;

[0014] Figure 5 yes Figure 1 Schematic diagram of the structure of the medium lifting platform.

[0015] In the figure: electric flatbed car-1, transverse guide rail assembly-2, lifting platform-3, air bleed filter assembly-4, electric control box-5, frame-101, active steering wheel-102, motor drive integrated unit-103, driven directional wheel-104, adjustable foot-105, guide rail assembly frame-201, handwheel-202, screw nut mechanism-203, guide rail-204, limit block-205, platform bottom plate-301, platform panel-302, fixed shaft plate-303, manual screw lift-304, slideway-305, top plate platform-306, air collecting box-401, filter box 402, fan-403, discharge port-404, air collecting port-405. DETAILED DESCRIPTION

[0016] As shown in the figure, an aircraft engine starter, oil seal and oil collection device includes an electric flatbed truck 1 that can realize short-distance traction and movement, a transverse guide rail assembly 2 is arranged on the electric flatbed truck 1, a lifting platform 3 is arranged on the transverse guide rail assembly 2, an air bleed filter assembly 4 and an electric control box 5 are arranged on the lifting platform 3, the air bleed filter assembly 4 includes an air collecting box 401, a filter box 402 and a fan 403 arranged front and back, a discharge port 404 is arranged on the casing of the fan 403, and an air collecting port 405 corresponding to the aircraft tail nozzle is arranged on the front panel of the air collecting box 401.

[0017] The electric flatbed vehicle 1 includes a frame 101, an active steering wheel 102 arranged at the rear of the frame, a motor drive integrated unit 103 for driving the active steering wheel 102 to rotate, driven directional wheels 104 respectively arranged on the left and right sides of the front of the frame 101, and adjustable feet 105 arranged on both sides of the frame 101. The height of the adjustable feet 105 can be adjusted by adjusting pins.

[0018] The transverse guide rail assembly 2 includes a guide rail assembly frame 201 fixed on the electric flatbed truck 1, a screw nut mechanism 203 arranged at the center position of the guide rail assembly frame 201 along the width direction and adjusted by a hand wheel 202, guide rails 204 arranged on both sides of the guide rail assembly frame 201 along the width direction, and limit blocks 205 arranged on the inner side of the guide rail assembly frame 201 corresponding to the positions of the two ends of the guide rail 204, and the guide rail 204 adopts a smooth strip.

[0019] The lifting platform 3 includes a platform base plate 301, a platform panel 302, a fixed axis plate 303 arranged at the center position of the lower surface of the platform base plate 301 and driven by a screw nut mechanism 203, a slideway 305 arranged on the lower surface of the platform base plate 301 and seated on the transverse guide rail assembly 2, and a top plate platform 306 arranged at the middle position of the front end of the platform panel 302, a manual screw lift 304 arranged between the platform base plate 301 and the platform panel 302, the filter box 402 is fixed on the top plate platform 306, the electric control box 5 is fixed on the platform base plate 301, and there are three manual screw lifts 304, which are respectively located on the left and right sides of the front end and the middle position of the rear end of the platform base plate 301.

[0020] A filter screen is arranged in the filter box 402, and the filter screen includes steel wire, glass fiber and resin filter material arranged from front to back to form a three-stage filter to fully filter the oil mist.

[0021] Up and down, left and right adjustment is achieved through the transverse guide rail assembly 2 and the lifting platform 3, the moving position of the slide 305 is limited by the limit block 205, and the height and inclination angle of the top plate platform are adjusted by the manual screw lift 304 to align the air collection port 405 with the aircraft nozzle position.

[0022] A control system is provided in the electrical control box 5, which consists of a control panel, a PLC controller, a frequency converter, a pressure sensor and cables. The fan power is controlled by the PLC controller and the frequency converter according to the pressure of the air collecting box, and the fan speed is automatically adjusted and the fan start and stop function is manually controlled. In the self-control mode, the filtering requirements can be met and the equipment noise and energy consumption can be reduced. Manual control (through knob control) can be used to adjust the fan power in emergency situations.

[0023] The above are only specific embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aircraft engine starter, oil seal and oil collection device, comprising an electric flatbed vehicle, characterized in that: A transverse guide rail assembly is arranged on the electric flatbed truck, a lifting platform is arranged on the transverse guide rail assembly, an air bleed filter assembly and an electric control box are arranged on the lifting platform, the air bleed filter assembly includes an air collecting box, a filter box and a fan arranged front and back, a discharge port is arranged on the fan casing, and an air collecting port corresponding to the tail nozzle of the aircraft is arranged on the front panel of the air collecting box.

2. The aircraft engine oil starter and oil seal collecting device according to claim 1 is characterized by: The transverse guide rail assembly includes a guide rail assembly frame fixed on the electric flatbed truck, a screw nut mechanism arranged at the center position of the guide rail assembly frame along the width direction and adjusted by a hand wheel, guide rails arranged on both sides of the guide rail assembly frame along the width direction, and limit blocks arranged on the inner side of the guide rail assembly frame at positions corresponding to both ends of the guide rails.

3. The aircraft engine oil starter and oil seal collecting device according to claim 1 is characterized by: The lifting platform includes a platform base plate, a platform panel, a fixed axis plate arranged at the center position of the lower surface of the platform base plate and driven to move laterally by a transverse guide rail assembly, a slide arranged on the lower surface of the platform base plate and seated on the transverse guide rail assembly, and a top plate platform arranged at the middle position of the front end of the platform panel, a manual screw lifter arranged between the platform base plate and the platform panel, the filter box is fixed on the top plate platform, the electric control box is fixed on the platform base plate, and there are three manual screw lifters which are respectively located on the left and right sides of the front end and the middle position of the rear end of the platform base plate.

4. The aircraft engine oil starter and oil seal collecting device according to claim 1, characterized in that: A filter screen is arranged in the filter box, and the filter screen comprises steel wire, glass fiber and resin filter material arranged from front to back.

5. The aircraft engine oil starter and oil seal collecting device according to claim 1, characterized in that: The electric flatbed vehicle comprises a frame, an active steering wheel arranged at the rear of the frame, a motor drive integrated machine, driven directional wheels respectively arranged at the left and right sides of the front of the frame, and adjustable feet arranged at both sides of the frame.

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