Lubricating oil filling equipment for test run of aero-engine

Abstract

The invention discloses an aero-engine test run lubricating oil filling device, and belongs to the technical field of aero-engine test run, the aero-engine test run lubricating oil filling device comprises a lubricating oil filtering vehicle, the lubricating oil filtering vehicle comprises a lubricating oil tank and an oil conveying pipe, and the oil conveying pipe is used for communicating the lubricating oil filtering vehicle with an oil gun; the lubricating oil filling mechanism comprises a lower hanging bin, a curved hose and a hard pipe, the front gunstock mechanism and the rear gunstock mechanism are used for supporting and limiting the oil gun, the oil gun is communicated with the first end of the curved hose, and the second end of the curved hose is communicated with the hard pipe. Lubricating oil can be filtered through the lubricating oil filtering vehicle to obtain lubricating oil with high cleanliness, the lubricating oil is conveyed to the oil gun through the oil conveying pipe, supporting limiting and storage of the oil gun are achieved through the lubricating oil filling mechanism, the oil gun can be conveniently taken for lubricating oil filling operation of an engine, the limited operation space on the rack is not occupied in the working period of the test bed, and the working efficiency is improved. Meanwhile, the phenomenon that lubricating oil is splashed and scattered in the transportation and filling process is eliminated, and the safety risk caused by lubricating oil filling on a test bed is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft engine test run, and in particular, to an aircraft engine test run lubricating oil filling device. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present application. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present application.

[0003] When an aircraft engine is tested on a test bench, the engine is first installed on the test bench frame, and after all kinds of pipelines and lines are connected, the lubricating oil is added.

[0004] Lubricating oil is a Class C flammable item. For safety reasons, it is not allowed to store oil barrels or other containers directly on the test bench. At the same time, due to the large number of test-related equipment and facilities on the test bench, there is usually not enough space on the test bench. Please refer to the attached manual. Figure 1 , is a schematic diagram of the test bench layout in the prior art. At present, when filling the test bench with lubricating oil, the operator usually takes the lubricating oil from the test bench lubricating oil room, transports it to the outside of the test bench door with a transfer vehicle, and then manually lifts the oil barrel, climbs onto the test bench frame, and fills the lubricating oil. Please refer to the attached manual for details. Figure 2 , is a schematic diagram of the layout of the test bench in the prior art pilot workshop, and the operator needs to climb up the steel ladder of the test bench to operate.

[0005] At present, the traditional method of manually lifting the lubricating oil barrel and climbing up the test bench to add lubricating oil to the test bench has several disadvantages:

[0006] 1. There are safety risks. During the transportation and lubricating oil filling process of the oil barrel, some of the lubricating oil will inevitably splash onto the stand. The lubricating oil remaining on the stand poses a flammable safety risk;

[0007] 2. There is a risk of misoperation. When there is residual lubricating oil on the test bench, the operator may also fall due to the slippery surface of the test bench and accidentally touch the equipment and facilities on the test bench;

[0008] 3. The efficiency of lubricating oil filling is low. The operator needs to transport the lubricating oil from the test bench lubricating oil room to the test bench door, and then lift it to the test bench for lubricating oil filling. The operation time is long and the production efficiency is low, which restricts the improvement of the production efficiency of the test bench.

[0009] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0010] In view of at least one of the above technical problems, the present application provides an aircraft engine test oil filling equipment, which can filter the lubricating oil through a lubricating oil filter vehicle to obtain lubricating oil with high cleanliness, and transport it to the oil gun through an oil pipe. The oil filling mechanism can realize the support, limitation and storage of the oil gun, which makes it convenient to use the oil gun to fill the engine's lubricating oil. During the operation of the test bench, it does not occupy the limited working space on the test bench. At the same time, it eliminates the splashing of lubricating oil during transportation and filling, and avoids the safety risks caused by lubricating oil filling on the test bench.

[0011] According to one aspect of the present application, an aircraft engine test oil filling device is provided, which is used to transport the oil from the oil room to the test room and fill it into the engine. The oil parts and the test room are separated by a partition wall. The aircraft engine test oil filling device includes an oil filter vehicle, an oil filling mechanism, a mounting plate assembly under the stand, an oil gun, a front butt mechanism and a rear butt mechanism:

[0012] The lubricating oil filter vehicle includes a lubricating oil tank and an oil pipeline. The oil pipeline is used to connect the lubricating oil filter vehicle and the oil gun. A coarse filter, a pump group, a three-stage fine filter, a pressure gauge and a solenoid valve are sequentially arranged on the oil pipeline. The coarse filter is used to perform coarse filtering of the lubricating oil. The pump group is used to pressurize the lubricating oil in the oil pipeline. The three-stage fine filter is used to perform three-stage filtering of the lubricating oil to improve the cleanliness of the lubricating oil.

[0013] The lubricating oil filling mechanism includes a lower hanging bin, a curved hose and a hard pipe. The lower hanging bin is arranged below the test bench frame surface. The lower hanging bin is used to install the front butt mechanism and the rear butt mechanism. The front butt mechanism and the rear butt mechanism are used to support the limited oil gun. The oil gun is connected to the first end of the curved hose, and the second end of the curved hose is connected to the hard pipe. The hard pipe is passed through the mounting plate assembly under the frame, and the other end of the hard pipe is connected to the oil pipeline.

[0014] In some embodiments of the present application, the lubricating oil filling mechanism also includes a cover plate, which is rotatably disposed on the test bench frame surface, and the cover plate is used to shield the lower hanging bin. The side wall of the lower hanging bin is provided with a limited perforation, and the limited perforation is used for the passage of a curved hose.

[0015] In some embodiments of the present application, the mounting plate assembly under the test bench includes a mounting plate, a pipe joint and a thin nut. The pipe joint is passed through the mounting plate. The thin nut is used to be sleeved on the pipe joint and lock the pipe joint to the mounting plate. The mounting plate is supported at the bottom of the test bench surface. An installation groove is opened on the mounting plate. The installation groove is used to clamp the limiting pipe joint. The pipe joint is used to connect the curved hose with the hard pipe.

[0016] In some embodiments of the present application, a refueling port and a drain port are provided on the lubricating oil tank, and a liquid level gauge and a detection interface are provided inside the lubricating oil tank, and the detection interface is used to connect an external online particle size detection device; the lubricating oil filtering vehicle also includes an overflow valve and a pressure regulating valve connected to the lubricating oil tank and the oil pipeline, the overflow valve is used to prevent overpressure in the oil pipeline, and the pressure regulating valve is used to relieve pressure and reflux through a preset bypass of the oil pipeline to adjust the output pressure.

[0017] In some embodiments of the present application, the front buttstock mechanism includes a base, a telescopic rod assembly and a limit support frame. The base is used to be installed on the bottom plate of the lower hanging warehouse, the telescopic rod assembly is arranged on the base, the limit support frame is arranged on the top of the telescopic rod assembly, the telescopic rod assembly is used to drive the limit support frame to rise and fall, and the limit support frame is used to support the front barrel of the limit oil gun.

[0018] In some embodiments of the present application, the front buttstock mechanism also includes a locking assembly, the limiting support frame includes a limiting bottom plate and a limiting side plate, the limiting side plates are spaced apart on both sides of the limiting bottom plate, the locking assembly includes a locking piece, the middle part of the locking piece is hinged to the top of the inner wall of the limiting side plate, and the locking pieces on both sides of the limiting bottom plate are used to clamp and limit the two sides of the front barrel of the oil gun.

[0019] In some embodiments of the present application, the front buttstock mechanism also includes a pushing assembly, a rotating assembly, a first shielding member and a second shielding member. The rotating assembly is provided with two groups, and the two groups of rotating assemblies are respectively hinged to the outer walls of the limiting side plates on both sides. The pushing assembly is movably arranged on the limiting side plates. The first end of the pushing assembly is hinged to the bottom of the locking member, and the second end of the pushing assembly is hinged to the bottom of the rotating assembly. The first shielding member is connected to the top of the rotating assembly on one side, and the second shielding member is connected to the top of the rotating assembly on the other side. The locking members on both sides are used to be pressed down by the front barrel to rotate, so as to drive the pushing assemblies on both sides to move synchronously outward along the vertical direction of the limiting side plates, and then push the rotating assemblies on both sides to rotate to respectively drive the first shielding member and the second shielding member to abut and close together and shield and protect the entrance of the front barrel.

[0020] In some embodiments of the present application, the pushing assembly includes a pushing rod, a first compression spring and a spring connecting plate, the rotating assembly includes a rotating plate and a support plate, the support plate is arranged at the top of the outer wall of the limiting side plate, the middle part of the rotating plate is hinged to the tail end of the support plate, the spring connecting plate is arranged at the bottom of the rotating plate, the pushing rod is movably passed through the limiting side plate, the first compression spring is sleeved on the pushing rod, and the first end of the first compression spring is connected to the spring connecting plate, and the second end of the first compression spring is connected to the side wall of the limiting side plate.

[0021] In some embodiments of the present application, the first shielding member and the second shielding member are both semicircular plate structures and the two are used to close together to form a circular shielding plate. A first curved plate is provided on the outer side of the first shielding member, and a second curved plate is provided on the outer side of the second shielding member. The second curved plate is used to enclose the first curved plate and the shielding plate to form a limiting cavity, and the limiting cavity is used to shield and protect the front barrel of the oil gun.

[0022] In some embodiments of the present application, the rear butt mechanism includes a butt base plate, a side support plate, a tail wall and a plurality of safety pins. The butt base plate is used to be fixed on the bottom plate of the lower hanging warehouse, the side support plates are arranged on both sides of the butt base plate, the tail wall is arranged on the butt base plate and has an angle with the butt base plate, the tail wall is used to connect with the bottom of the side support plates on both sides, the side support plates are provided with a plurality of safety holes, and the plurality of safety pins are used to pass through each safety hole respectively to lock the trigger of the oil gun.

[0023] This application has the following beneficial effects:

[0024] The aviation engine test oil filling equipment of the present application filters the lubricating oil through the lubricating oil filter vehicle to obtain lubricating oil with high cleanliness, which is transported to the oil gun through the oil pipe, and the front stock mechanism and the rear stock mechanism are supported and installed by the lower hanging warehouse of the lubricating oil filling mechanism, and the oil guns of the front stock mechanism and the rear stock mechanism are supported and limited, and the lower hanging warehouse is arranged under the test bench frame surface, which can shield and protect the front stock mechanism and the rear stock mechanism, and realize the storage of the oil gun, so that the oil gun is convenient to use for the engine lubricating oil filling operation, and when lubricating oil is not needed, that is, during the operation of the test bench, it does not occupy the limited working space on the test bench. The present application eliminates the splashing and spilling of lubricating oil during transportation and filling, and avoids the safety risks caused by lubricating oil filling on the test bench. The entire process of lubricating oil transportation and filling is carried out in closed pipelines and devices, and is not exposed to the external environment, so there is no safety risk. The lubricating oil filling equipment is integrated inside the test bench frame, does not occupy the limited space on the test bench, and does not cause the risk of misoperation. The lubricating oil filling is convenient, fast and efficient, and does not require too much test bench working time, thus shortening the working time of this process and improving the production efficiency of the test bench.

[0025] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, this application also has other purposes, features and advantages. The following will further describe this application in detail with reference to the figures. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 It is a schematic diagram of the layout of the test bench in the prior art;

[0028] Figure 2 It is a schematic diagram of the bench layout of the pilot plant in the prior art;

[0029] Figure 3 It is a schematic diagram of the overall layout of the preferred embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the internal structure of the lubricating oil filtering vehicle of the preferred embodiment of the present application;

[0031] Figure 5 It is a structural schematic diagram of the lubricating oil filling mechanism of the preferred embodiment of the present application;

[0032] Figure 6 It is a structural schematic diagram of the rear stock mechanism of the preferred embodiment of the present application;

[0033] Figure 7 It is a structural schematic diagram of a side support plate of a preferred embodiment of the present application;

[0034] Figure 8 It is a structural schematic diagram of the under-mounting plate assembly of the stand in a preferred embodiment of the present application;

[0035] Fig. 9 It is a structural schematic diagram of a mounting plate of a preferred embodiment of the present application;

[0036] Fig.10 It is a schematic diagram of the installation of a pipe joint according to a preferred embodiment of the present application;

[0037] Fig.11 It is a structural schematic diagram of the front stock mechanism of the preferred embodiment of the present application;

[0038] Fig.12 It is a schematic diagram of the installation of the clamping member of the preferred embodiment of the present application;

[0039] Fig.13 is a schematic diagram of the installation of the first shielding member and the second shielding member in a preferred embodiment of the present application;

[0040] Fig.14 It is a structural schematic diagram of a pushing assembly of a preferred embodiment of the present application;

[0041] Legend: 100, aircraft engine; 101, lubricating oil port; 200, lubricating oil filter vehicle; 201, lubricating oil tank; 2011, refueling port; 2012, sewage outlet; 2013, liquid level gauge; 202, coarse filter; 203, pump group; 204, overflow valve; 205, pressure regulating valve; 206, three-stage fine filter; 207, pressure gauge; 208, flow meter; 209, solenoid valve; 210, oil pipeline; 300, lubricating oil filling mechanism; 301, lower hanging warehouse; 302, cover plate; 303, curved hose; 304, hard pipe; 305, through-wall pipe; 400, lower mounting plate assembly of the stand; 401, mounting plate; 4011, mounting groove; 402, pipe joint; 403, thin nut; 1, oil gun; 2, front gun Support mechanism; 21. Base; 22. Telescopic rod assembly; 221. Telescopic inner rod; 222. Telescopic outer rod; 23. Push assembly; 231. Push rod; 232. First compression spring; 233. Spring connecting plate; 24. Limit support frame; 241. Limit bottom plate; 242. Limit side plate; 25. Positioning assembly; 251. Positioning member; 2511. Limiting boss; 26. Rotating assembly; 261. Rotating plate; 262. Support plate; 27. First shielding member; 271. First arc plate; 272. Shielding platform; 28. Second shielding member; 281. Second arc plate; 29. ​​Second compression spring; 3. Rear stock mechanism; 31. Stock bottom plate; 32. Side support plate; 33. Tail wall; 34. Safety hole; 35. Safety pin. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0043] Figure 1 It is a schematic diagram of the layout of the test bench in the prior art; Figure 2 It is a schematic diagram of the bench layout of the pilot plant in the prior art; Figure 3 It is a schematic diagram of the overall layout of the preferred embodiment of the present application; Figure 4 This is a schematic diagram of the internal structure of the lubricating oil filtering vehicle of the preferred embodiment of the present application; Figure 5 It is a structural schematic diagram of the lubricating oil filling mechanism of the preferred embodiment of the present application; Figure 6 It is a structural schematic diagram of the rear stock mechanism of the preferred embodiment of the present application; Figure 7 It is a structural schematic diagram of a side support plate of a preferred embodiment of the present application; Figure 8 It is a structural schematic diagram of the under-mounting plate assembly of the stand in a preferred embodiment of the present application; Fig. 9 It is a structural schematic diagram of a mounting plate of a preferred embodiment of the present application;

[0044] Fig.10 It is a schematic diagram of the installation of a pipe joint according to a preferred embodiment of the present application; Fig.11It is a structural schematic diagram of the front stock mechanism of the preferred embodiment of the present application; Fig.12 It is a schematic diagram of the installation of the clamping member of the preferred embodiment of the present application;

[0045] Fig.13 is a schematic diagram of the installation of the first shielding member and the second shielding member in a preferred embodiment of the present application; Fig.14 It is a schematic diagram of the structure of the pushing component of the preferred embodiment of the present application.

[0046] An aircraft engine test lubricant filling device is used to transport the lubricant from the lubricant room to the test room and fill it into the engine 100. The lubricant parts and the test room are separated by a partition wall. The aircraft engine test lubricant filling device includes a lubricant filter vehicle 200, a lubricant filling mechanism 300, a mounting plate assembly 400 under the stand, an oil gun 1, a front gun stock mechanism 2 and a rear gun stock mechanism 3:

[0047] The lubricating oil filtering vehicle 200 includes a lubricating oil tank 201 and an oil delivery pipe 210. The oil delivery pipe 210 is used to connect the lubricating oil filtering vehicle 200 and the oil gun 1. The oil delivery pipe 210 is provided with a coarse filter 202, a pump group 203, a three-stage fine filter 206, a pressure gauge 207 and a solenoid valve 209 in sequence. The coarse filter 202 is used to perform coarse filtering on the lubricating oil. The pump group 203 is used to pressurize the lubricating oil in the oil delivery pipe 210. The three-stage fine filter 206 is used to perform three-stage filtering on the lubricating oil to improve the cleanliness of the lubricating oil.

[0048] The lubricating oil filling mechanism 300 includes a lower hanging bin 301, a curved hose 303 and a hard pipe 304. The lower hanging bin 301 is arranged below the test bench frame surface. The lower hanging bin 301 is used to install the front stock mechanism 2 and the rear stock mechanism 3. The front stock mechanism 2 and the rear stock mechanism 3 are used to support the limiting oil gun 1. The oil gun 1 is connected to the first end of the curved hose 303, and the second end of the curved hose 303 is connected to the hard pipe 304. The hard pipe 304 is passed through the mounting plate assembly 400 under the frame, and the other end of the hard pipe 304 is connected to the oil pipeline 210.

[0049] Here, the oil pipeline 210 needs to pass through the partition wall to connect the lubricating oil filter vehicle 200 and the oil gun 1. In some embodiments, a through-wall pipe 305 is provided on the partition wall. One end of the through-wall pipe 305 is connected to the oil pipeline 210 and the other end is connected to the hard pipe 304, so that the lubricating oil tank 201 and the oil gun 1 can be connected.

[0050] Here, the flow meter 208 transmits the flow signal outputted from the end of the oil delivery pipe 210 to the test bench control system, and the control system controls the oil filter vehicle 200 to meet the operator's quantitative filling of the oil to the engine 100. The solenoid valve 209 at the end mainly plays the role of switching on and off. When the control system transmits a stop signal, it works together with the pump group 203 to close the oil delivery pipe 210.

[0051] The aircraft engine test oil filling equipment of the present application filters the oil through the oil filter vehicle 200 to obtain the clean oil, which is then transported to the oil gun 1 through the oil pipe 210. The front stock mechanism 2 and the rear stock mechanism 3 are supported and installed by the lower hanging bin 301 of the oil filling mechanism 300. The front stock mechanism 2 and the rear stock mechanism 3 support and limit the oil gun 1. The lower hanging bin 301 is arranged below the test bench frame surface, which can shield and protect the front stock mechanism 2 and the rear stock mechanism 3, and realize the storage of the oil gun 1, so that the oil gun 1 is convenient to use for the oil filling operation of the engine 100. When the oil filling is not needed, that is, during the operation of the test bench, the limited working space on the frame is not occupied. The present application eliminates the splashing and spilling of lubricating oil during transportation and filling, and avoids the safety risks caused by lubricating oil filling on the test bench. The entire process of lubricating oil transportation and filling is carried out in closed pipelines and devices, and is not exposed to the external environment, so there is no safety risk. The lubricating oil filling equipment is integrated inside the test bench frame, does not occupy the limited space on the test bench, and does not cause the risk of misoperation. The lubricating oil filling is convenient, fast and efficient, and does not require too much test bench working time, thus shortening the working time of this process and improving the production efficiency of the test bench.

[0052] Preferably, please refer to Figure 5 As shown, the lubricating oil filling mechanism 300 also includes a cover plate 302, which is rotatably arranged on the test bench frame surface, and is used to shield the lower hanging bin 301. The side wall of the lower hanging bin 301 is provided with a limited perforation, and the limited perforation is used for the curved hose 303 to pass through.

[0053] It is understandable that the lower hanging warehouse 301 can support and install the front butt mechanism 2 and the rear butt mechanism 3, and at the same time store and protect the oil gun 1. The lubricating oil filling mechanism 300 is integrated under the test bench surface of the test workshop. When the cover plate 302 is covered, the lubricating oil filling mechanism 300 and the oil gun 1 do not occupy the limited working space on the test bench during operation.

[0054] Preferably, please refer to Figure 8 , 9 As shown in 10, the mounting plate assembly 400 under the test bench includes a mounting plate 401, a pipe joint 402 and a thin nut 403. The pipe joint 402 is inserted into the mounting plate 401. The thin nut 403 is used to be sleeved on the pipe joint 402 and lock the pipe joint 402 to limit the position on the mounting plate 401. The mounting plate 401 is supported at the bottom of the test bench test bench surface. The mounting plate 401 is provided with a mounting groove 4011. The mounting groove 4011 is used to clamp the limiting pipe joint 402. The pipe joint 402 is used to connect the curved hose 303 with the hard pipe 304.

[0055] It is understandable that one end of the pipe joint 402 is connected to the curved hose 303 and the other end is connected to the hard pipe 304, playing a supporting role of connecting the upper and lower parts, which is conducive to dispersing the pressure of the pipeline and facilitating the maintenance and replacement of the pipeline. The pipe joint 402 can be limited by the installation groove 4011, and the pipe joint 402 can be conveniently locked on the installation plate 401 through the thin nut 403, so that the pipe joint 402 can be quickly disassembled and assembled through the thin nut 403.

[0056] Optionally, a flat square is preset on the pipe joint 402, and the flat square can be snapped into the installation groove 4011 to enhance the limiting effect.

[0057] Preferably, please refer to Figure 3 , 4 As shown, the lubricating oil tank 201 is provided with a refueling port 2011 and a drain port 2012, and a liquid level meter 2013 and a detection interface are provided in the lubricating oil tank 201, and the detection interface is used to connect an external online particle size detection device; the lubricating oil filtering vehicle 200 also includes an overflow valve 204 and a pressure regulating valve 205 connected to the lubricating oil tank 201 and the oil pipeline 210, the overflow valve 204 is used to prevent the oil pipeline 210 from overpressure, and the pressure regulating valve 205 is used to relieve pressure and reflux through a preset bypass of the oil pipeline 210 to adjust the output pressure.

[0058] It can be understood that the lubricating oil tank 201 is provided with a refueling port 2011, a liquid level meter 2013, a drain port 2012 and an interface for an online particle size detection device, so as to realize the functions of loading and discharging lubricating oil.

[0059] It should be noted that the overall design of the lubricating oil filter vehicle 200 is a vehicle-mounted structure, and the output end cooperates with the oil pipeline 210 to achieve multiple uses of one machine. It can be placed in the lubricating oil room of the test bench according to needs for use on different test benches.

[0060] Preferably, please refer to Figure 11-14 As shown, the front stock mechanism 2 includes a base 21, a telescopic rod assembly 22 and a limit support frame 24. The base 21 is used to be installed on the bottom plate of the lower hanging warehouse 301, the telescopic rod assembly 22 is arranged on the base 21, and the limit support frame 24 is arranged on the top of the telescopic rod assembly 22. The telescopic rod assembly 22 is used to drive the limit support frame 24 to rise and fall, and the limit support frame 24 is used to support the front barrel of the limit oil gun 1.

[0061] Specifically, the front buttstock mechanism 2 also includes a locking assembly 25, the limiting support frame 24 includes a limiting bottom plate 241 and a limiting side plate 242, the limiting side plates 242 are spaced apart on both sides of the limiting bottom plate 241, the locking assembly 25 includes a locking piece 251, the middle part of the locking piece 251 is hinged to the top of the inner wall of the limiting side plate 242, and the locking pieces 251 on both sides of the limiting bottom plate 241 are used to clamp and limit the two sides of the front barrel of the oil gun 1.

[0062] It is understandable that the liftable limiting support frame 24 can be used to support and limit the front barrel of the oil gun 1, so as to facilitate the use and storage of the oil gun 1. In order to enhance the limiting stability of the front barrel, the front barrel is pressed and limited by the clamping member 251 hinged on the limiting side plate 242 to ensure the stability of the limiting and prevent the front barrel from falling off.

[0063] Optionally, the telescopic rod assembly 22 includes a telescopic inner rod 221 and a telescopic outer rod 222. The telescopic outer rod 222 can be telescopically sleeved on the outer side of the telescopic inner rod 221, and the two can be locked and fixed by a locking nut.

[0064] Optionally, the positioning member 251 is an arc-shaped plate-like structure, and a limiting boss 2511 is provided on the upper part of the positioning member 251, and the limiting boss 2511 is used to limit the top of the front barrel after the front barrel is inserted into the middle of the positioning members 251 on both sides. The positioning member 251 can be hinged to the limiting side plate 242 through a torsion spring.

[0065] Preferably, please refer to Figure 11-14 As shown, the front stock mechanism 2 also includes a pushing component 23, a rotating component 26, a first shielding member 27 and a second shielding member 28. The rotating component 26 is provided with two groups, and the two groups of rotating components 26 are respectively hinged to the outer walls of the limiting side plates 242 on both sides. The pushing component 23 is movably arranged on the limiting side plates 242. The first end of the pushing component 23 is hinged to the bottom of the blocking member 251, and the second end of the pushing component 23 is hinged to the bottom of the rotating component 26. The first shielding member 27 is connected to the top of the rotating component 26 on one side, and the second shielding member 28 is connected to the top of the rotating component 26 on the other side. The blocking members 251 on both sides are used to be pressed down by the front barrel to rotate, so as to drive the pushing components 23 on both sides to move synchronously outward along the vertical direction of the limiting side plates 242, and then push the rotating components 26 on both sides to rotate to respectively drive the first shielding member 27 and the second shielding member 28 to abut and close together and shield and protect the entrance of the front barrel.

[0066] Specifically, the pushing assembly 23 includes a pushing rod 231, a first compression spring 232 and a spring connecting plate 233, the rotating assembly 26 includes a rotating plate 261 and a support plate 262, the support plate 262 is arranged on the top of the outer wall of the limiting side plate 242, the middle part of the rotating plate 261 is hinged to the tail end of the support plate 262, the spring connecting plate 233 is arranged at the bottom of the rotating plate 261, the pushing rod 231 is movably penetrated on the limiting side plate 242, the first compression spring 232 is sleeved on the pushing rod 231, and the first end of the first compression spring 232 is connected to the spring connecting plate 233, and the second end of the first compression spring 232 is connected to the side wall of the limiting side plate 242.

[0067] It can be understood that when the front buttstock is stuck in the middle of the locking pieces 251 on both sides, the bottom of the locking piece 251 is pressed down to rotate it around the hinge point, and the bottom of the locking piece 251 drives the push rod 231 to move outward along the vertical direction of the limiting side plate 242, thereby pushing the bottom of the rotating plate 261 to rotate, thereby driving the first shielding piece 27 and the second shielding piece 28 to close and dock through the top of the rotating plates 261 on both sides to shield and protect the front barrel, prevent foreign matter from falling into the front barrel and affecting the cleanliness of the lubricating oil, thereby avoiding affecting the subsequent test run of the engine 100.

[0068] The first compression spring 232 sleeved on the push rod 231 is used to provide elastic force to pull the bottom of the rotating plate 261 close to the limiting side plate 242, that is, to achieve the reset of the rotating plate 261 and the blocking member 251 after the front barrel is taken out.

[0069] Optionally, the tops of the rotating plates 261 on both sides are connected to the outer sides of the first shielding member 27 and the second shielding member 28 through second compression springs 29 respectively. The second compression springs 29 can play an elastic buffering role to reduce impact and collision damage between the first shielding member 27 and the second shielding member 28.

[0070] Preferably, please refer to Fig.13 , 14 As shown, the first shielding member 27 and the second shielding member 28 are both semicircular plate structures and are used to close together to form a circular shielding plate. A first arc plate 271 is provided on the outer side of the first shielding member 27, and a second arc plate 281 is provided on the outer side of the second shielding member 28. The second arc plate 281 is used to enclose the first arc plate 271 and the shielding plate to form a limiting cavity, and the limiting cavity is used to shield and protect the front barrel of the oil gun 1.

[0071] It is understandable that the second curved plate 281 and the first curved plate 271 and the first shielding member 27 and the second shielding member 28 that are joined and closed together form a cylindrical structure, and a limiting cavity is formed inside to shield and protect the front gun barrel. Since the positioning members 251 on both sides are symmetrically inclined, it is convenient to realize the compression and locking of the front gun barrel. The first shielding member 27 and the second shielding member 28 are in a state of being away from each other before the front gun barrel is placed. After the front gun barrel is clamped into the positioning members 251 on both sides, the first shielding member 27 and the second shielding member 28 can be driven to close together through the pushing component 23 and the rotating component 26, that is, the clamping and limiting of the front gun barrel and the shielding protection at the pipe mouth are realized at one time, and the operation is very simple and intuitive.

[0072] Optionally, a shielding platform 272 is provided on the side wall of the first shielding member 27, and the shielding platform 272 is used to fit and shield the side wall of the second shielding member 28 when the second shielding member 28 is docked with the first shielding member 27, so as to shield and seal the docking gap between the second shielding member 28 and the first shielding member 27, thereby reducing dust and impurities from entering the limiting cavity through the gap.

[0073] Preferably, please refer to Figure 6 , 7 As shown, the rear butt mechanism 3 includes a butt base plate 31, a side support plate 32, a tail wall 33 and a plurality of safety pins 35. The butt base plate 31 is used to be fixed on the bottom plate of the lower hanging warehouse 301, the side support plates 32 are arranged on both sides of the butt base plate 31, the tail wall 33 is arranged on the butt base plate 31 and has an angle with the butt base plate 31, the tail wall 33 is used to connect with the bottom of the side support plates 32 on both sides, and a plurality of safety holes 34 are opened on the side support plate 32. The plurality of safety pins 35 are used to pass through each safety hole 34 respectively to lock the trigger of the oil gun 1.

[0074] It is understandable that the rear butt mechanism 3 cooperates with the front butt mechanism 2 to support and limit the oil gun 1, and keep the front gun barrel facing the clamped limit position. The butt bottom plate 31 is fixed in the lower hanging warehouse 301, and the inner side of the butt bottom plate 31 mainly supports the bottom of the oil gun 1. The distance between the side support plates 32 on both sides is set to be 2-3mm larger than the width of the oil gun 1, which is convenient for placing the oil gun 1, and the oil gun 1 is clamped by the side support plates 32 on both sides to prevent the oil gun 1 from tipping left and right. Multiple safety holes 34 are set on the side support plates 32. Inserting the safety pin 35 into the safety hole 34 can not only lock the oil gun 1, but also use the safety pin 35 to clamp the trigger of the oil gun 1, which can avoid the risk of oil spraying due to misoperation. The tail wall 33 supports the rear side of the protective edge of the oil gun trigger, and the oil inlet hose of the oil gun 1 passes through the upper end of the tail wall 33 and is connected to the curved hose 303 from the limit perforation of the lower hanging warehouse 301.

[0075] In summary, the device of the present application is highly practical, and the operation and equipment management are simple and convenient, and the later maintenance is simple. When the lubricating oil is added on the aircraft engine test bench, the following beneficial effects will be produced: the splashing and spilling of lubricating oil during transportation and filling is eliminated, and the safety risks caused by lubricating oil filling on the test bench are avoided; the lubricating oil filling equipment is integrated inside the test bench frame, does not occupy the limited space on the test bench, and does not produce the risk of misoperation; the lubricating oil filling is fast and efficient, which shortens the working time of the process and improves the production efficiency of the test bench.

[0076] In addition, the lubricating oil filling equipment structure of the present application is not only suitable for filling lubricating oil on aircraft engine test benches, but can also be extended to filling lubricating oil and fuel of other types of aircraft engine test equipment. It is particularly suitable for working scenarios where the oil filling end cannot be directly laid with fixed delivery pipelines due to factors such as space, environment, and physical interference of equipment, and needs to be kept oil-free and clean.

[0077] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0078] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection of this application.

Claims

1. An aircraft engine test lubricant filling device, used for transporting lubricant from the lubricant room to the test room and filling it into the engine (100), the lubricant parts and the test room are separated by a partition wall, characterized in that: The aircraft engine test lubricating oil filling equipment comprises a lubricating oil filter vehicle (200), a lubricating oil filling mechanism (300), a mounting plate assembly under a stand (400), an oil gun (1), a front gun stock mechanism (2) and a rear gun stock mechanism (3): The lubricating oil filtering vehicle (200) comprises a loading vehicle, a lubricating oil tank (201) and an oil delivery pipe (210). The lubricating oil tank (201) is arranged on the loading vehicle. The oil delivery pipe (210) is used to connect the lubricating oil filtering vehicle (200) and the oil gun (1). The oil delivery pipe (210) is provided with a coarse filter (202), a pump group (203), a three-stage fine filter (206), a pressure gauge (207) and a solenoid valve (209) in sequence. The coarse filter (202) is used to perform coarse filtering on the lubricating oil. The pump group (203) is used to pressurize the lubricating oil in the oil delivery pipe (210). The three-stage fine filter (206) is used to perform three-stage filtering on the lubricating oil to improve the cleanliness of the lubricating oil. The lubricating oil filling mechanism (300) comprises a lower hanging bin (301), a curved hose (303) and a hard pipe (304); the lower hanging bin (301) is arranged below the test bench frame surface; the lower hanging bin (301) is used to install a front butt mechanism (2) and a rear butt mechanism (3); the front butt mechanism (2) and the rear butt mechanism (3) are used to support a limit oil gun (1); the oil gun (1) is connected to a first end of the curved hose (303); the second end of the curved hose (303) is connected to the hard pipe (304); the hard pipe (304) is passed through a mounting plate assembly (400) under the test bench; the other end of the hard pipe (304) is connected to an oil delivery pipe (210).

2. The aircraft engine test oil filling equipment according to claim 1, characterized in that: The lubricating oil filling mechanism (300) further comprises a cover plate (302), which is rotatably arranged on the test bench frame surface, and is used to cover the lower hanging bin (301). The side wall of the lower hanging bin (301) is provided with a limited position perforation, and the limited position perforation is used for the curved hose (303) to pass through.

3. The aircraft engine test oil filling equipment according to claim 1, characterized in that: The mounting plate assembly (400) under the test bench comprises a mounting plate (401), a pipe joint (402) and a thin nut (403); the pipe joint (402) is inserted into the mounting plate (401); the thin nut (403) is used to be sleeved on the pipe joint (402) and lock the pipe joint (402) to the mounting plate (401); the mounting plate (401) is supported at the bottom of the test bench surface; a mounting groove (4011) is provided on the mounting plate (401); the mounting groove (4011) is used to clamp the limiting pipe joint (402); the pipe joint (402) is used to connect the curved hose (303) with the hard pipe (304).

4. The aircraft engine test oil filling equipment according to claim 1, characterized in that: The lubricating oil tank (201) is provided with a refueling port (2011) and a sewage outlet (2012); a level meter (2013) and a detection interface are provided inside the lubricating oil tank (201); the detection interface is used to connect an external online particle size detection device; the lubricating oil filtering vehicle (200) also includes an overflow valve (204) and a pressure regulating valve (205) connected to the lubricating oil tank (201) and the oil pipeline (210); the overflow valve (204) is used to prevent the oil pipeline (210) from overpressure; the pressure regulating valve (205) is used to regulate the output pressure by relieving pressure and reflux through a bypass preset in the oil pipeline (210).

5. The aircraft engine test oil filling equipment according to claim 1, characterized in that: The front gun stock mechanism (2) comprises a base (21), a telescopic rod assembly (22) and a limit support frame (24); the base (21) is used for being mounted on the bottom plate of the lower hanging warehouse (301); the telescopic rod assembly (22) is arranged on the base (21); the limit support frame (24) is arranged on the top of the telescopic rod assembly (22); the telescopic rod assembly (22) is used for driving the limit support frame (24) to be raised and lowered; and the limit support frame (24) is used for supporting the front barrel of the limit oil gun (1).

6. The aircraft engine test oil filling equipment according to claim 5, characterized in that: The front stock mechanism (2) also includes a locking assembly (25), the limiting support frame (24) includes a limiting bottom plate (241) and a limiting side plate (242), the limiting side plates (242) are arranged at intervals on both sides of the limiting bottom plate (241), the locking assembly (25) includes a locking piece (251), the middle part of the locking piece (251) is hinged to the top of the inner wall of the limiting side plate (242), and the locking pieces (251) on both sides of the limiting bottom plate (241) are used to lock and limit the two sides of the front barrel of the oil gun (1).

7. The aircraft engine test oil filling equipment according to claim 6, characterized in that: The front stock mechanism (2) further comprises a pushing assembly (23), a rotating assembly (26), a first shielding member (27) and a second shielding member (28). The rotating assembly (26) is provided with two groups, and the two groups of rotating assemblies (26) are respectively hinged to the outer walls of the limiting side plates (242) on both sides. The pushing assembly (23) is movably arranged on the limiting side plates (242). The first end of the pushing assembly (23) is hinged to the bottom of the locking member (251), and the second end of the pushing assembly (23) is hinged to the bottom of the rotating assembly (26). The first shielding member (27) and the second shielding member (28) are respectively hinged to the outer walls of the limiting side plates (242) on both sides. The shielding member (27) is connected to the top of the rotating assembly (26) on one side, and the second shielding member (28) is connected to the top of the rotating assembly (26) on the other side. The blocking members (251) on both sides are used to be pressed down by the front barrel to rotate, so as to drive the pushing assemblies (23) on both sides to move outward synchronously along the vertical direction of the limiting side plate (242), thereby driving the rotating assemblies (26) on both sides to rotate to respectively drive the first shielding member (27) and the second shielding member (28) to abut against each other and cover and protect the entrance of the front barrel.

8. The aircraft engine test oil filling equipment according to claim 7, characterized in that: The pushing component (23) comprises a pushing rod (231), a first compression spring (232) and a spring connecting plate (233); the rotating component (26) comprises a rotating plate (261) and a supporting plate (262); the supporting plate (262) is arranged at the top of the outer wall of the limiting side plate (242); the middle part of the rotating plate (261) is hinged to the tail end of the supporting plate (262); the spring connecting plate (233) is arranged at the bottom of the rotating plate (261); the pushing rod (231) is movably inserted into the limiting side plate (242); the first compression spring (232) is sleeved on the pushing rod (231); the first end of the first compression spring (232) is connected to the spring connecting plate (233); and the second end of the first compression spring (232) is connected to the side wall of the limiting side plate (242).

9. The aircraft engine test oil filling equipment according to claim 7, characterized in that: The first shielding member (27) and the second shielding member (28) are both semicircular plate-shaped structures and are used to be combined to form a circular shielding plate. A first curved plate (271) is arranged on the outer side of the first shielding member (27), and a second curved plate (281) is arranged on the outer side of the second shielding member (28). The second curved plate (281) is used to enclose the first curved plate (271) and the shielding plate to form a limiting cavity, and the limiting cavity is used to shield and protect the front barrel of the oil gun (1).

10. The aircraft engine test oil filling equipment according to claim 1, characterized in that: The rear gun stock mechanism (3) comprises a gun stock bottom plate (31), a side support plate (32), a tail wall (33) and a plurality of safety pins (35); the gun stock bottom plate (31) is used for being fixedly mounted on the bottom plate of the lower hanging warehouse (301); the side support plates (32) are arranged on both sides of the gun stock bottom plate (31); the tail wall (33) is arranged on the gun stock bottom plate (31) and has an angle with the gun stock bottom plate (31); the tail wall (33) is used for being connected with the bottom of the side support plates (32) on both sides; a plurality of safety holes (34) are provided on the side support plates (32); and a plurality of safety pins (35) are used for respectively passing through the respective safety holes (34) to lock the trigger of the oil gun (1).

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