A Y5B series aircraft expansion wire tension measuring device

Abstract

The present invention relates to a Y5B series aircraft expansion line tension measuring device, which comprises a horizontal vertical plate, a fixing frame fixedly installed on the rear side of the middle part of the horizontal vertical plate, a tension meter fixedly installed on the fixing frame, a front hanging device fixedly installed on the front side of the horizontal vertical plate and located below the tension meter, and an expansion line force bearing device fixedly installed on both ends of the front side of the horizontal vertical plate; a top column is fixedly mounted on the top rod at the bottom of the tension meter, and the bottom surface of the top column is arc-shaped. The present invention has low manufacturing cost, reliable performance and simple operation; when measuring tension, the aircraft expansion line is placed between the top column and the expansion line force bearing device; the tension meter is used to read the aircraft expansion line tension value, and the reading can be compared with the data in the device usage table to determine whether the expansion line tightness meets the requirements; the top column is used to apply force during tension measurement, so that the aircraft expansion line tension is transmitted to the tension meter through the top column for reading.

Description

Technical Field

[0001] The invention relates to a Y5B series aircraft expansion wire tension measuring device, belonging to the technical field of aircraft ground support equipment. Background Art

[0002] The Y5B series aircraft expansion wire is installed between the upper and lower wings of the aircraft. The aircraft expansion wire includes the flight expansion wire and the landing expansion wire. The flight expansion wire bears the tension generated by two parts of loads during flight: one part is the load transmitted from the lower wing to the fixed joint of the flight expansion wire through the wing box support, and the other part is the lift load generated by the upper wing. The landing expansion wire bears the load generated by the deadweight of the wing box when the aircraft stays on the ground, and the load generated by its inertia force when the aircraft lands. During the assembly, maintenance and repair process, the tension of the flat strip expansion wire of the aircraft needs to be measured, and the tightness of the expansion wire is adjusted according to the measurement results to ensure that the tension is within a reasonable range so that the aircraft expansion wire can effectively bear the load and ensure flight safety during flight and landing. The materials of the spring and elastic sheet structure in the existing expansion wire tension measuring device are all 65Mn spring steel. The scrap rate is high during the processing process, and the manufacturing cost is significantly increased. The production cycle is long, the performance of the product is unstable during use, and frequent calibration is required, which is time-consuming and labor-intensive. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a Y5B series aircraft expansion wire tension measuring device which is simple to operate for aircraft assembly and maintenance, easy to use and has reliable performance.

[0004] The present invention adopts the following technical solution:

[0005] The present invention comprises a transverse plate, a fixing frame fixedly mounted on the rear side of the middle of the transverse plate, a tension meter fixedly mounted on the fixing frame, a front hanging device fixedly mounted on the front side of the transverse plate and located below the tension meter, and a wire-increasing load-bearing device fixedly mounted on both ends of the front side of the transverse plate; a sleeve top column is fixedly mounted on the top rod at the bottom of the tension meter, and the bottom surface of the top column is arc-shaped.

[0006] The wire expansion load-bearing device of the present invention comprises a left load-bearing column vertically installed at one end of the front side of the horizontal plate and a right load-bearing column vertically installed at the other end of the front side of the horizontal plate. The left load-bearing column and the right load-bearing column are symmetrically arranged, the top surfaces of the left load-bearing column and the right load-bearing column are coplanar, and the distance between the bottom surface of the top column and the coplanar surface is 3.35-3.65mm. The expansion wire is horizontally placed on the left load-bearing column and the right load-bearing column.

[0007] The fixing frame of the present invention is in an inverted U shape, and an upper fixing hole is arranged on the top plate of the fixing frame, and the upper fixing hole is fixed to the cylindrical seat at the back of the tension meter;

[0008] Lower fixing holes are arranged on the two side plates of the fixing frame, and the fixing bolts on the lower fixing holes pass through the transverse plates and are fixed to the front hanging device through nuts.

[0009] The front hanging device of the present invention comprises a left hanging bracket and a right hanging bracket of the same structure; mounting holes A corresponding to the lower fixing holes are arranged at the bottom of the left hanging bracket and the right hanging bracket, and the lower fixing holes correspond to the mounting holes A, and the left hanging bracket and the right hanging bracket are fixed to the horizontal vertical plate correspondingly by bolts and nuts, and the upper parts of the left hanging bracket and the right hanging bracket are fixed to the two legs at the bottom of the tension meter.

[0010] The left and right hangers of the present invention are block-shaped, and grooves for inserting two legs at the bottom of the tension meter are arranged at the rear of the left and right hangers.

[0011] The tension meter of the present invention is a GT-1 type steel cable tension meter produced by Shanghai Automation Instrument Co., Ltd.

[0012] The distance between the bottom surface of the top post of the present invention and the coplanar surface is 3.5 mm.

[0013] The positive effects of the present invention are as follows: the horizontal plate, fixing frame, front hanging device, wire expansion bearing device and top column of the present invention are made of structural steel or structural aluminum, and the tension meter is a finished product, so the manufacturing cost is low, the performance is reliable, and the operation is simple; when measuring the tension, the aircraft expansion line is placed between the top column and the wire expansion bearing device; the tension meter is used to read the tension value of the aircraft expansion line, and the reading is compared with the data in the device usage table to determine whether the tightness of the expansion line meets the requirements; the top column is used to apply force during tension measurement, so that the aircraft expansion line tension is transmitted to the tension meter through the top column for reading. After the present invention is manufactured, it is necessary to check the present invention on a tensile machine. During the check, the two ends of the expansion line are fixed on the tensile machine, and loaded according to the use requirements of the expansion line. The loading range is 4000-13000N, wherein a mark is measured 3 times every 1000N using the present invention, and then a use table is made according to the reading table formulated according to the aircraft use requirements for confirmation of use after measuring the reading.

[0014] The device of the present invention is simple to assemble and maintain, easy to use and has reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Attached Figure 2 This is a schematic diagram of the installation structure of the wire expansion bearing device of the present invention;

[0017] Attached Figure 3 This is a schematic diagram of the tension side installation structure of the present invention;

[0018] Attached Figure 4 This is a schematic diagram of the installation structure of the tension meter and the top column of the present invention;

[0019] Attached Figure 5 It is a schematic diagram of the installation structure of the fixing frame and the horizontal plate of the present invention;

[0020] Attached Figure 6 It is a schematic diagram of the structure of the left rack or the right rack of the present invention;

[0021] Attached Figure 7 For attachment Figure 1 AA structural diagram;

[0022] Attached Figure 8 Attached Figure 2 BB structural diagram;

[0023] Attached Fig. 9 It is a schematic diagram of the structure of the fixing frame of the present invention.

[0024] In the attached drawings: 1 horizontal plate, 2 fixing frame, 21 upper fixing hole, 22 lower fixing hole, 3 tension gauge, 4 top column, 5 left load-bearing column, 6 right load-bearing column, 7 left hanging frame, 8 right hanging frame, 9 mounting hole A, 10 groove, 11 top rod. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings:

[0026] Embodiment 1:

[0027] As attached Figure 1-9 As shown, the present invention includes a transverse plate 1, a fixing frame 2 fixedly installed on the rear side of the middle part of the transverse plate 1, a tension meter 3 fixedly installed on the fixing frame 2, a front hanging device fixedly installed on the front side of the transverse plate 1 and located below the tension meter 3, and a wire-increasing load-bearing device fixedly installed on both ends of the front side of the transverse plate 1; a top column 4 is fixedly mounted on the top rod 11 at the bottom of the tension meter 3, the top rod 11 is connected to the pull rod on the tension meter, the bottom surface of the top column 4 is arc-shaped, and the transverse plate 1, the fixing frame 2, the front hanging device, the wire-increasing load-bearing device and the top column 4 are made of structural steel.

[0028] As attached Figure 1 , 2 As shown in Figures 3 and 5, the wire expansion load-bearing device of the present invention includes a left load-bearing column 5 vertically installed at one end of the front side of the horizontal plate 1 and a right load-bearing column 6 vertically installed at the other end of the front side of the horizontal plate 1, the left load-bearing column 5 and the right load-bearing column 6 are symmetrically arranged, the top surfaces of the left load-bearing column 5 and the right load-bearing column 6 are coplanar, the distance between the bottom surface of the top column 4 and the coplanar surface is 3.35-3.65mm, and the optimal distance is 3.5mm, and the expansion wire is horizontally placed on the left load-bearing column 5 and the right load-bearing column 6.

[0029] As attached Figure 5As shown, the fixing frame 2 of the present invention is in an inverted U shape, and an upper fixing hole 21 is arranged on the top plate of the fixing frame 2, and the upper fixing hole 21 is fixed to the cylindrical seat on the back of the tension gauge 3; lower fixing holes 22 are arranged on the two side plates of the fixing frame 2, and the fixing bolts on the lower fixing holes 22 pass through the horizontal plate 1 and are fixed to the front hanging device by nuts.

[0030] As attached Figure 1 , 4 As shown in Figures 6, the front hanging device of the present invention comprises a left hanger 7 and a right hanger 8 of the same structure; mounting holes A9 corresponding to the lower fixing holes 22 are arranged at the bottom of the left hanger 7 and the right hanger 8, and the lower fixing holes 22 and the mounting holes A9 are correspondingly fixed to the horizontal plate 1 by bolts and nuts, and the upper parts of the left hanger 7 and the right hanger 8 are fixed to the two legs at the bottom of the tension gauge 3.

[0031] As attached Figure 6 As shown, the left bracket 7 and the right bracket 8 of the present invention are block-shaped, and grooves 10 for inserting into the two legs at the bottom of the tension meter 3 are provided at the rear of the left bracket 7 and the right bracket 8.

[0032] Embodiment 2

[0033] The difference between this embodiment and the first embodiment is that the horizontal vertical plate 1, the fixing frame 2, the front hanging device, the wire expansion bearing device and the top column 4 of the present invention are made of structural aluminum.

[0034] Embodiment 3

[0035] The difference between this embodiment and the first and second embodiments is that the tension meter 3 of the present invention is a GT-1 type wire rope tension meter produced by Shanghai Automation Instrument Co., Ltd.

[0036] As attached Figure 1-8As shown, when the device of the present invention is used to measure the tension of the aircraft expansion line, the tension gauge 3 pull rod is operated to lift the top rod 11 and the top column 4, increase the coplanar distance between the top column 4 and the left bearing column 5 and the right bearing column 6, increase the space for placing the expansion line, and place the aircraft expansion line between the left bearing column 5 and the right bearing column 6. On the top, operate the tension gauge 3 pull rod, the push rod 11 drives the push column 4 to fall, so that the bottom surface of the push column 4 presses the flight expansion line, check the tension gauge 3 indication, and judge whether it meets the aircraft use requirements. If the expansion line tightness is not within the aircraft requirement range, it is necessary to adjust the expansion line tightness. The adjustment process is as follows: remove the counterweight block from the landing expansion line and the front flight expansion line, remove the connecting pipe between the expansion lines, loosen the safety nuts of the front and rear flight expansion lines, loosen the safety nuts of the landing expansion line ends, and adjust the tightness of the expansion line. Two people are required to adjust it. Each person is at one end of the expansion line and uses a expansion wrench to pull the end head at the same time to tighten or loosen the expansion line. Screwing it into the end head tightens the expansion line, and screwing it out from the end head loosens the expansion line. The thread at the upper end of the expansion line is left-handed, and the tightness of the flight expansion line When the tension changes, the tightness of the landing expansion line will change. When the front flight expansion line is loosened, the rear flight expansion line will become tighter. On the contrary, when the front flight expansion line is tightened, the rear flight expansion line will become loose. After the front flight expansion line is tightened correctly, when the tightness of the rear flight expansion line is tightened from 0 to 8825N, the front flight expansion line will loosen by about 980~1960N. The paired expansion lines should have the same tightness. When tightening the paired expansion lines, it should be noted that when tightening a looser expansion line, the tightness of the other one will increase rapidly. Therefore, the tightness of the two expansion lines should be measured at the same time when tightening. To avoid vibration, the edges and corners of the expansion lines should be aligned with the flight direction after adjustment. After the expansion lines are adjusted, the state of the aircraft should meet the requirements of aircraft horizontal adjustment, size measurement and horizontal measurement. After adjustment, remeasurement was performed until it met the requirements. The qualified index data were: the front flight expansion line was 6765~10785N, the rear flight expansion line was 7255~10785N, and the landing expansion line was 8825~12750N.

[0037] The horizontal plate 1, the fixing frame 2, the front hanging device, the wire expansion bearing device and the top column 4 of the present invention are made of structural steel or structural aluminum, and the tension meter 3 is a finished product, so the finished product is low in cost, reliable in performance and simple to operate. When measuring tension, the aircraft expansion line is placed between the top column and the wire expansion bearing device; the tension meter 3 is used to read the tension value of the aircraft expansion line, and the reading is compared with the data in the device usage table to determine whether the tightness of the expansion line meets the requirements; the top column is used to apply force during tension measurement, so that the aircraft expansion line tension is transmitted to the tension meter through the top column for reading. After the present invention is manufactured, it is necessary to check the present invention on a tensile machine. During the check, the two ends of the expansion line are fixed on the tensile machine, and loaded according to the use requirements of the expansion line. The loading range is 4000-13000N, wherein a mark is measured 3 times every 1000N using the present invention, and then a use table is made according to the reading table formulated according to the aircraft use requirements for confirmation of use after measuring the reading.

[0038] The device of the present invention is simple to assemble and maintain, easy to use and has reliable performance.

[0039] The above-described implementation modes are only preferred embodiments of the present invention, and are not exhaustive of feasible implementations of the present invention. For those skilled in the art, any obvious modifications made thereto without departing from the principles and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

[0040] At present, the technical solution of the present invention has been put into pilot production, that is, a small-scale test of the product before large-scale mass production; after the pilot production was completed, a user usage survey was carried out in a small range, and the survey results showed that user satisfaction was high; now preparations have begun for the formal production of the product for industrialization (including intellectual property risk warning survey).

Claims

1. A Y5B series aircraft expansion wire tension measuring device, characterized in that It comprises a transverse plate (1), a fixing frame (2) fixedly mounted on the rear side of the middle of the transverse plate (1), a tension meter (3) fixedly mounted on the fixing frame (2), a front hanging device fixedly mounted on the front side of the transverse plate (1) and located below the tension meter (3), and a wire-tensioning bearing device fixedly mounted on both ends of the front side of the transverse plate (1); A top column (4) is fixedly mounted on the top rod (11) at the bottom of the tension gauge (3), and the bottom surface of the top column (4) is arc-shaped; The wire expansion bearing device comprises a left bearing column (5) vertically mounted on one end of the front side of the horizontal vertical plate (1) and a right bearing column (6) vertically mounted on the other end of the front side of the horizontal vertical plate (1), wherein the left bearing column (5) and the right bearing column (6) are symmetrically arranged, the top surfaces of the left bearing column (5) and the right bearing column (6) are coplanar, the bottom surface of the top column (4) is 3.35-3.65 mm away from the coplanar surface, and the expansion wire is horizontally placed on the left bearing column (5) and the right bearing column (6); The fixing frame (2) is in an inverted U shape, and an upper fixing hole (21) is provided on the top plate of the fixing frame (2), and the upper fixing hole (21) is fixed to a cylindrical seat at the back of the tension gauge (3); Lower fixing holes (22) are provided on the two side plates of the fixing frame (2), and fixing bolts on the lower fixing holes (22) pass through the horizontal plate (1) and are fixed to the front hanging device via nuts; The front hanging device comprises a left hanging rack (7) and a right hanging rack (8) having the same structure; Mounting holes A (9) corresponding to the lower fixing holes (22) are provided at the bottom of the left mounting bracket (7) and the right mounting bracket (8). The lower fixing holes (22) and the mounting holes A (9) are correspondingly fixed to the horizontal plate (1) by bolts and nuts. The upper parts of the left hanger (7) and the right hanger (8) are fixed to the two legs at the bottom of the tension gauge (3); The left hanger (7) and the right hanger (8) are block-shaped, and grooves (10) for inserting into two legs at the bottom of the tension gauge (3) are provided at the rear of the left hanger (7) and the right hanger (8).

2. A Y5B series aircraft expansion wire tension measuring device according to claim 1, characterized in that The tension meter (3) is a GT-1 type wire rope tension meter produced by Shanghai Automation Instrument Co., Ltd.

3. A Y5B series aircraft expansion wire tension measuring device according to claim 1, characterized in that The distance between the bottom surface of the top post (4) and the coplanar surface is 3.5 mm.

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