Deflection amount measuring device for aircraft oil receiving device

Abstract

The utility model relates to the technical field of aviation product maintenance, in particular to an aircraft oil receiving device deflection measuring device which comprises a transfer trolley, and a force applying and measuring device sliding in the front-back direction is arranged on the front side of the transfer trolley. A head flange plate fixing device, an adjusting mechanism and a tail connecting lug fixing device are fixedly installed on the rear side of the transfer trolley, the force applying and measuring device comprises a rotating support, a circumferential force applying device and a measuring device which are installed on the transfer trolley in a sliding mode, and an axial force applying device is arranged on the rotating support. The utility model provides the device for measuring the deflection amount of the aircraft oil receiving device, so that the problem of deflection amount measurement after the oil receiving device is repaired is solved, and the problems that a product interferes with an aircraft body after being installed due to the fact that the deflection amount cannot be measured accurately and the product shakes under the action of air flow in the air are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation product maintenance, in particular to a device for measuring the deflection amount of an aircraft oil receiving device. Background Art

[0002] As part of the aircraft refueling main pipe, the refueling device is responsible for refueling the receiving aircraft. The refueling device is mainly composed of a universal refueling head, an outer cylinder, a piston rod, and hydraulic actuator cylinder accessories. The refueling device relies on the hydraulic system to complete the extension and retraction actions when working, and the pneumatic system is used to complete emergency retraction and extension when the hydraulic system fails. Due to the active coordination of the guide groove inside the refueling device, it is easy to deflect under the action of air load during operation. The deflection amount of the refueling device directly affects the reliability of the aircraft's aerial work. Therefore, it is particularly important to measure the deflection amount of the refueling device.

[0003] The existing measuring device has a neutral loading counterweight in the direction of the loading force, which cannot determine the actual direction of the pressure in the air. The mounting stand is fixed with two-point clamps, the frame is a single-layer structure, the measuring device has no stable and reliable fixed points, and the product position must be adjusted manually, which is inconvenient to operate. The bracket has a large deformation and the measurement reading is unstable. The stability and accuracy of the measurement data cannot be guaranteed, and the difference between the two measured offsets cannot be measured. Therefore, it is necessary to design a device that can reliably measure the deflection of the oil receiving device, improve the measurement efficiency, ensure the stability of the loading force, the consistency of the loading direction, reduce the measurement error, and improve the measurement safety. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a device for measuring the deflection amount of an aircraft refueling device.

[0005] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0006] A device for measuring the runout of an aircraft refueling device comprises a transfer vehicle, wherein a force-applying and measuring device which slides in the front-to-rear direction is arranged on the front side of the transfer vehicle, a head flange fixing device, an adjustment mechanism, and a tail ear fixing device are fixedly installed on the rear side of the transfer vehicle, the force-applying and measuring device comprises a rotating bracket which is slidably mounted on the transfer vehicle, a circumferential force-applying device and a measuring device, and an axial force-applying device is arranged on the rotating bracket.

[0007] Preferably, the transfer vehicle includes a vehicle body, a traction rod connected to the vehicle body by a quick-release pin, an auxiliary support arm arranged at the bottom of the front side of the vehicle body through a support arm rotating shaft, a linear movable base fixedly installed on the vehicle body by a first fastening bolt, a fixed wheel and a universal wheel fixedly installed at the bottom of the vehicle body by a first bolt, the rotating bracket, the circumferential force application device and the measuring device are correspondingly installed on the linear movable base, the head flange fixing device is fixedly connected to the vehicle body by a head fixing pin, the adjustment mechanism is fixedly connected to the vehicle body by a hexagonal bolt, the tail ear fixing device is fixedly connected to the vehicle body by a fixing bolt, and the auxiliary support arm is provided with an arm fixing pin.

[0008] Preferably, the adjustment mechanism includes two screw lifts arranged on the vehicle body, a plum blossom connecting shaft arranged on the two screw lifts, a connecting shaft connecting the plum blossom connecting shafts, a transmission shaft connected to the plum blossom connecting shaft, and three hand wheels fixedly connected to the ends of the transmission shafts by connecting bolts, the tops of the two screw lifts are connected to a Z-axis connecting plate by screws and a second bolt, a heavy-duty slide is arranged on the Z-axis connecting plate, and the heavy-duty slide is connected to an X-axis connecting plate by a first hexagon socket head screw.

[0009] Preferably, anti-slip plates are provided at the bottom of the two screw lifts.

[0010] Preferably, the rotating bracket includes a rotating seat arranged on the linear movable base, a straight connecting frame connected to the rotating seat through a locking device and a locking bolt, and an oblique connecting frame fixedly connected to the straight connecting frame through a third fastening bolt, and the axial force applying device is fixedly connected to the oblique connecting frame through a third hexagon socket head screw.

[0011] Preferably, the axial force applying device includes a bottom connecting plate arranged on the oblique connecting frame, a heightening plate connected to the bottom connecting plate via long cylindrical head screws, an axial thrust gauge fixedly connected to the heightening plate, and a Φ104 clamp and a Φ112 clamp fixedly connected to the bottom connecting plate via cylindrical head screws.

[0012] Preferably, the circumferential force applying device comprises a circumferential force gauge mounting frame arranged on the linear movable base, and a circumferential force gauge fixedly connected to the circumferential force gauge mounting frame by a second hexagon socket head screw.

[0013] Preferably, the measuring device includes a sliding column mounting seat arranged on the linear movable base, a sliding column connected to the sliding column mounting seat by a connecting fixing screw, a sliding block arranged on the sliding column, a depth gauge mounting plate connected to the sliding block, and a depth micrometer mounted on the depth gauge mounting plate by a cross-slot small pan head screw, and a set screw is connected between the sliding block and the sliding column.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a device for measuring the deflection of an aircraft refueling device, thereby meeting the problem of measuring the deflection of the refueling device after repair, and solving the problem that the product interferes with the aircraft body after installation due to the inability to accurately measure the deflection, and also causes the problem of shaking under the action of airflow in the air. By designing the deflection measuring device of the refueling device, the device adopts a reinforced frame structure, an installation adjustment mechanism, an axial force device, a circumferential force device, a rotating bracket, and a measuring device, the measurement error caused by insufficient rigidity of the frame body can be reduced. At the same time, the adjustment mechanism reduces the difficulty of manual adjustment and improves the efficiency of adjustment. At the same time, the axial force device cooperates with the rotating bracket to accurately simulate the actual load angle to ensure the authenticity of the measurement data; the position of the measuring device is stable, the measurement point positioning is accurate and adjustable, and it is compatible with measurements of different models. In addition, the device also has small loading deformation, convenient installation and adjustment, and accurate positioning of the loading and measurement points. It can effectively improve production efficiency and solve production safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the transfer vehicle of the utility model;

[0019] Figure 3 This is a schematic diagram of the top view of the transfer vehicle of the utility model;

[0020] Figure 4 It is a side view structural schematic diagram of the transfer vehicle of the utility model;

[0021] Figure 5 This is a schematic diagram of the main structure of the adjustment mechanism of the utility model;

[0022] Figure 6 It is a side view structural diagram of the force applying and measuring device of the utility model;

[0023] Figure 7 This is a schematic diagram of the main structure of the rotating bracket of the utility model;

[0024] Figure 8 It is a side view structural schematic diagram of the rotating bracket of the utility model;

[0025] Fig. 9 This is a schematic diagram of the main structure of the axial force applying device of the utility model;

[0026] Fig.10 This is a schematic diagram of the front view of the circumferential force applying device of the utility model;

[0027] Fig.11 This is a schematic diagram of the main structure of the measuring device of the utility model;

[0028] Fig.12 It is a schematic diagram of the top view of the structure of the measuring device of the utility model;

[0029] Fig.13 It is a side structural schematic diagram of the measuring device of the utility model.

[0030] In the figure: 1. Transfer vehicle; 2. Force application and measurement device;

[0031] 201, traction rod; 202, vehicle body; 203, auxiliary support arm; 204, linear moving base; 205, head flange fixing device; 206, adjustment mechanism; 207, tail ear fixing device; 208, fixing bolt; 209, first bolt; 210, fixed wheel; 211, hexagonal bolt; 212, universal wheel; 213, first fastening bolt; 214, support arm fixing pin; 215, quick release pin; 216, head fixing pin; 217, support arm rotating shaft;

[0032] 301, X-axis connecting plate; 302, first hexagon socket head screw; 303, heavy-duty slide; 304, Z-axis connecting plate; 305, screw; 306, second bolt; 307, three-spoke handwheel; 308, connecting bolt; 309, transmission shaft; 310, anti-drop plate; 311, connecting shaft; 312, plum blossom connecting shaft; 313, screw lift;

[0033] 401, axial force applying device; 402, circumferential force applying device; 403, rotating bracket; 404, connecting bolt; 405, second fastening bolt; 406, measuring device;

[0034] 501, axial thrust gauge; 502, Φ104 clamp; 503, Φ112 clamp; 504, bottom connecting plate; 505, cylindrical head screw; 506, long cylindrical head screw; 507, heightening plate;

[0035] 601, circumferential tensile gauge; 602, second hexagon socket head screw; 603, circumferential tensile gauge mounting bracket;

[0036] 701, oblique connecting frame; 702, third hexagon socket head screw; 703, straight connecting frame; 704, rotating seat; 705, locking device; 706, locking bolt; 707, third fastening bolt;

[0037] 801. Depth micrometer; 802. Depth gauge mounting plate; 803. Sliding block; 804. Sliding column; 805. Sliding column mounting seat; 806. Set screw; 807. Cross recessed small pan head screw; 808. Connecting fixing screw. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] like Figure 1 As shown, a device for measuring the deflection amount of an aircraft refueling device is mainly composed of a transfer vehicle 1 and a force application and measurement device 2. The transfer vehicle 1 is used for fixed transportation, measurement position positioning, loading support and fixed position adjustment of the refueling device.

[0040] The oil receiving device is fixed on the transfer vehicle 1 by flange fixing, shaft connection and bracket support. The force applying and measuring device 2 applies axial force and axial force to the oil receiving device in a specific direction. The deflection quantitative value of the oil receiving device and the difference in deflection relative to the flange are measured at the specified measuring point.

[0041] like Figures 2 to 4 As shown, the transfer vehicle 1 includes a traction rod 201, a vehicle body 202, an auxiliary support arm 203, a linear movable base 204, a head flange fixing device 205, an adjustment mechanism 206, a tail ear fixing device 207, a fixing bolt 208, a first bolt 209, a directional wheel 210, a hexagonal head bolt 211, a universal wheel 212, a first fastening bolt 213, a support arm fixing pin 214, a quick release pin 215, a head fixing pin 216, and a support arm rotating shaft 217.

[0042] The traction rod 201 is used for driving and traction of the transfer vehicle 1; the vehicle body 202 is used to provide a fixed platform for the installation of the force-applying and measuring device 2, and the rigidity of the vehicle body 202 can ensure that the product will not be deformed during loading and measurement; the auxiliary support arm 203 is used to fix the vehicle body 202 during measurement to prevent the vehicle body from moving; the linear movable base 204 is used to install the force-applying and measuring device 2; the head flange fixing device 205 is used to fix the flange plate connected to the oil receiving device to ensure the stability of the installation position of the oil receiving device; the adjustment mechanism 206 is used to modulate the installation position of the oil receiving device; the tail ear fixing device 207 is used to fix the flange of the oil receiving device; the fixing bolt 208 is used to connect and fix the tail ear fixing device 207 to the vehicle body 202; the first bolt 209 is used for connecting and fixing the fixed wheel 210 to the bottom of the vehicle body 202; the fixed wheel 210 is used for moving the vehicle body 202; the hexagonal head bolt 211 is used for connecting and fixing the adjustment mechanism 206 to the vehicle body 202; the universal wheel 212 is arranged at the bottom of the vehicle body 202, and is used for moving and turning the vehicle body 202; the first fastening bolt 213 is used for connecting the linear moving base 204 to the vehicle body 202; the support arm fixing pin 214 is used for retracting and locking the auxiliary support arm 203; the quick release pin 215 is used for fixing the traction rod 201; the head fixing pin 216 is used for connecting the head flange fixing device 205 to the vehicle body 202; the support arm rotating shaft 217 is used for the retracting and rotating of the auxiliary support arm 203.

[0043] Furthermore, if Figure 5 As shown, the adjustment mechanism 206 includes an X-axis connecting plate 301, a first hexagon socket head screw 302, a heavy-duty slide 303, a Z-axis connecting plate 304, a screw 305, a second bolt 306, a three-spoke hand wheel 307, a connecting bolt 308, a transmission shaft 309, an anti-slip plate 310, a connecting shaft 311, a plum blossom connecting shaft 312, and a screw lift 313.

[0044] The X-axis connecting plate 301 is used for the X-axis movement after the oil receiving device is fixedly installed; the first hexagon socket head screw 302 is used for the fixed connection between the X-axis connecting plate 301 and the heavy-duty slide 303; the heavy-duty slide 303 is used to provide movement support and guidance for the movement of the oil receiving device; the Z-axis connecting plate 304 is used for the Z-axis movement after the oil receiving device is fixedly installed; the screw 305 and the second bolt 306 are used for the connection and fixation of the Z-axis connecting plate 304; the three-spoke hand wheel 307 is used for manual position adjustment; the connecting bolt 308 is used for the three-spoke hand wheel 3 07 is connected with the transmission shaft 309; the transmission shaft 309 is used to transmit the movement of the three-spoke hand wheel 307 to the plum blossom connecting shaft 312; the anti-slip plate 310 is used to fix the screw lift 313 to prevent it from loosening after being installed on the vehicle body 202; the connecting shaft 311 is used to connect the plum blossom connecting shaft 312; the plum blossom connecting shaft 312 is used to drive the screw lift 313; two screw lifts 313 are provided, which are connected by power through the connecting shaft 311, and the screw lift 313 is used to lift and lower the working position of the adjustment mechanism 206.

[0045] like Figure 6 As shown, the force applying and measuring device 2 includes an axial force applying device 401 , a circumferential force applying device 402 , a rotating bracket 403 , a connecting bolt 404 , a second fastening bolt 405 , and a measuring device 406 .

[0046] The axial force-applying device 401 is used to apply a load of a specified force value and angle to the oil-receiving device in the axial direction; the circumferential force-applying device 402 is used to apply a load of a specified force value to the oil-receiving device in the circumferential direction; the rotating bracket 403 is used to fix the axial force-applying device 401; the connecting bolt 404 is used to fix the circumferential force-applying device 402; the second fastening bolt 405 is used to fix the measuring device 406; the measuring device 406 is used to measure the displacement of the oil-receiving device under a specified load at a stop height.

[0047] like Figure 7 , Figure 8 As shown, the rotating bracket 403 includes an oblique connecting frame 701 , a third hexagon socket head screw 702 , a straight connecting frame 703 , a rotating seat 704 , a locking device 705 , a locking bolt 706 , and a third fastening bolt 707 .

[0048] The oblique connecting frame 701 is used to support the axial force-applying device 401; the third hexagon socket head screw 702 is used to lock the axial force-applying device 401; the straight connecting frame 703 is used to connect the vehicle body 202; the rotating seat 704 is a stable supporting part of the rotating bracket 403; the locking device 705 is used to lock and adjust the rotating bracket 403; the locking bolt 706 and the third fastening bolt 707 are used for the connection and locking inside the rotating bracket 403.

[0049] like Fig. 9 As shown, the axial force applying device 401 includes an axial thrust gauge 501 , a Φ104 clamp 502 , a Φ112 clamp 503 , a bottom connecting plate 504 , a cylindrical head screw 505 , a long cylindrical head screw 506 , and a heightening plate 507 .

[0050] The axial thrust gauge 501 is used to apply a specified load force value to the oil receiving device; the Φ104 clamp 502 and the Φ112 clamp 503 are used to fix the oil receiving device; the bottom connecting plate 504 is used for fixed connection between the axial force application device 401 and the rotating bracket 403; the cylindrical head screw 505 is used for fixed connection between the Φ104 clamp 502 and the Φ112 clamp 503 and the bottom connecting plate 504; the long cylindrical head screw 506 is used for fixed connection between the heightening plate 507 and the bottom connecting plate 504; the heightening plate 507 is used to adjust the coaxiality of the axial thrust gauge 501 and the axis of the oil receiving device.

[0051] like Fig.10 As shown, the circumferential force applying device 402 includes a circumferential force gauge 601 , a second hexagon socket head screw 602 , and a circumferential force gauge mounting bracket 603 .

[0052] The circumferential force gauge 601 is used to apply a specified load value to the oil receiving device in the circumferential direction; the second hexagon socket head screw 602 is used to connect and fix the circumferential force gauge 601 to the circumferential force gauge mounting bracket 603; the circumferential force gauge mounting bracket 603 is used to connect and fix the circumferential force gauge 601 to the vehicle body 202.

[0053] like Figures 11 to 13 As shown, the measuring device 406 includes a depth micrometer 801, a depth gauge mounting plate 802, a sliding block 803, a sliding column 804, a sliding column mounting seat 805, a set screw 806, a cross recessed small pan head screw 807, and a connecting fixing screw 808.

[0054] The depth micrometer 801 is used to measure the displacement of the oil receiving device under the loaded state; the depth gauge mounting plate 802 is used to fix the depth micrometer 801; the sliding block 803 is used to adjust the measuring position of the depth micrometer 801 and guide the work; the sliding column 804, the sliding column mounting seat 805, the locking screw 806, the cross recessed small pan head screw 807, and the connecting fixing screw 808 are used to connect and fix the measuring device 406.

[0055] The working principle and use process of this utility model:

[0056] Before measurement, fold up the auxiliary support arm 203, open the quick release pin 215, and use the traction rod 201 to pull the transfer vehicle 1 to the product measurement position. Open the auxiliary support arm 203 and lock it. Move the linear moving base 204 to the end of the traction rod 201, open the fixing clamp of the adjustment mechanism 206, and remove the connecting bolts on the tail ear fixing device 207; shake the three-spoke hand wheel 307 of the adjustment mechanism 206 to raise the adjustment mechanism 206. Place the oil receiving device on the fixing clamp of the adjustment mechanism 206 and lock it, shake the three-spoke hand wheel 307 to align the front end flange mounting hole of the oil receiving device with the head flange fixing device 205 in height, adjust the heavy slide 303 to align the front end flange mounting hole of the oil receiving device with the mounting hole of the head flange fixing device 205 horizontally, and use bolts to connect and fix them; the rear end flange of the oil receiving device is connected and fixed to the tail ear fixing device 207.

[0057] Move the force-applying and measuring device 2 on the linear moving base 204 to the oil receiving plug of the oil receiving device. Align the oil receiving plug with the axial thrust gauge 501, and connect and fix the oil receiving plug through the Φ104 clamp 502 and the Φ112 clamp 503 on the force-applying and measuring device 2 to eliminate the movable gap. Apply a load of 196N to the oil receiving plug through the axial thrust gauge 501. Apply a tensile load of 196N to the oil receiving plug through the circumferential force-applying device 402, and use the measuring device 406 to measure the working position record of the oil receiving plug; apply a compressive load of 196N to the oil receiving plug through the circumferential force-applying device 402, and use the measuring device 406 to measure the working position record of the oil receiving plug, and calculate the stroke difference between the two positions.

[0058] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for measuring the deflection of an aircraft refueling device, characterized in that: The invention comprises a transfer vehicle (1), wherein the front side of the transfer vehicle (1) is provided with a force applying and measuring device (2) which slides in the front-rear direction, and the rear side of the transfer vehicle (1) is fixedly installed with a head flange fixing device (205), an adjustment mechanism (206), and a tail ear fixing device (207), wherein the force applying and measuring device (2) comprises a rotating bracket (403) which is slidably mounted on the transfer vehicle (1), a circumferential force applying device (402), and a measuring device (406), and an axial force applying device (401) is provided on the rotating bracket (403).

2. The device for measuring the deflection of an aircraft refueling device according to claim 1, characterized in that: The transfer vehicle (1) comprises a vehicle body (202), a traction rod (201) connected to the vehicle body (202) via a quick release pin (215), an auxiliary support arm (203) arranged at the front bottom of the vehicle body (202) via a support arm rotating shaft (217), a linear movable base (204) fixedly mounted on the vehicle body (202) via a first fastening bolt (213), a directional wheel (210) fixedly mounted at the bottom of the vehicle body (202) via a first bolt (209), and a universal wheel (212), the rotating bracket (403), the circumferentially-directed wheel (214) and the circumferentially-directed wheel (215). The force device (402) and the measuring device (406) are correspondingly installed on the linear movable base (204); the head flange fixing device (205) is fixedly connected to the vehicle body (202) via a head fixing pin (216); the adjustment mechanism (206) is fixedly connected to the vehicle body (202) via a hexagonal bolt (211); the rear ear fixing device (207) is fixedly connected to the vehicle body (202) via a fixing bolt (208); and the auxiliary support arm (203) is provided with a support arm fixing pin (214).

3. The device for measuring the deflection amount of an aircraft refueling device according to claim 2, characterized in that: The adjustment mechanism (206) comprises two screw lifts (313) arranged on the vehicle body (202), a plum blossom connecting shaft (312) arranged on the two screw lifts (313), a connecting shaft (311) connected to the plum blossom connecting shaft (312), a transmission shaft (309) connected to the plum blossom connecting shaft (312), and three hand wheels (307) fixedly connected to the ends of the transmission shaft (309) via connecting bolts; the tops of the two screw lifts (313) are connected to a Z-axis connecting plate (304) via screws (305) and second bolts (306); a heavy-duty slide (303) is arranged on the Z-axis connecting plate (304); and the heavy-duty slide (303) is connected to an X-axis connecting plate (301) via a first hexagon socket head screw (302).

4. The device for measuring the deflection amount of an aircraft refueling device according to claim 3, characterized in that: Anti-slip plates (310) are provided at the bottoms of the two screw lifts (313).

5. The device for measuring the deflection amount of an aircraft refueling device according to claim 2, characterized in that: The rotating bracket (403) comprises a rotating seat (704) arranged on the linear movable base (204), a straight connecting frame (703) connected to the rotating seat (704) via a locking device (705) and a locking bolt (706), and an oblique connecting frame (701) fixedly connected to the straight connecting frame (703) via a third fastening bolt (707), and the axial force applying device (401) is fixedly connected to the oblique connecting frame (701) via a third hexagon socket head screw (702).

6. The aircraft refueling device deflection measurement device according to claim 5, characterized in that: The axial force applying device (401) comprises a bottom connecting plate (504) arranged on the oblique connecting frame (701), a heightening plate (507) connected to the bottom connecting plate (504) via a long cylindrical head screw (506), an axial thrust meter (501) fixedly connected to the heightening plate (507), and a Φ104 clamp (502) and a Φ112 clamp (503) fixedly connected to the bottom connecting plate (504) via a cylindrical head screw (505).

7. The aircraft refueling device deflection measurement device according to claim 2, characterized in that: The circumferential force applying device (402) comprises a circumferential force gauge mounting frame (603) arranged on the linear movable base (204), and a circumferential force gauge (601) fixedly connected to the circumferential force gauge mounting frame (603) via a second hexagon socket head screw (602).

8. The device for measuring the deflection of an aircraft refueling device according to claim 2, characterized in that: The measuring device (406) comprises a slide column mounting seat (805) arranged on the linear movable base (204), a slide column (804) connected to the slide column mounting seat (805) via a connecting fixing screw (808), a sliding block (803) arranged on the slide column (804), a depth gauge mounting plate (802) connected to the sliding block (803), and a depth micrometer (801) mounted on the depth gauge mounting plate (802) via a cross-recessed small pan head screw (807), wherein a fixing screw (806) is connected between the sliding block (803) and the slide column (804).

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