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CN-121973952-A - Bidirectional loading module, loading method and adhesive tape manufacturing method

CN121973952ACN 121973952 ACN121973952 ACN 121973952ACN-121973952-A

Abstract

The application provides a bidirectional loading module, a loading method and a manufacturing method of an adhesive tape, which belong to the technical field of strength tests and comprise an aluminum rod, a loading aluminum plate, an elastic medium block and the adhesive tape, wherein the adhesive tape comprises an adhesive tape base and two ears, the two ears are connected to the upper surface of the adhesive tape base, a gap is arranged in the middle of each side of each vertical ear, the vertical ears are divided into a front half section and a rear half section of each vertical ear, two sides of the elastic medium block are provided with first strip holes for the vertical ears to pass through, the lower surface of the elastic medium block is contacted with the upper surface of the adhesive tape base, the loading aluminum plate comprises an aluminum plate base and a cross beam, two sides of the length direction of the aluminum plate base are respectively provided with second strip holes for the vertical ears to pass through, the upper surface of the elastic medium block is contacted with the lower surface of the aluminum plate base, the cross beam is clamped in the gap, threaded holes are arranged in the middle, the two sides of the cross beam and the positions corresponding to the vertical ears are provided with the aluminum rod to pass through round holes, and the aluminum rod is spliced in the vertical ears. The application realizes bidirectional load and improves the use reliability and operability.

Inventors

  • DENG YUWEN
  • PEI LIANJIE
  • Zhou Luanliang
  • WANG XIN
  • ZHANG YONGQIANG
  • DANG JIANLONG

Assignees

  • 中国飞机强度研究所

Dates

Publication Date
20260505
Application Date
20260302

Claims (9)

  1. 1. The bidirectional loading module is characterized by comprising an aluminum bar (1), a loading aluminum plate (2), an elastic medium block (3) and an adhesive tape (4), wherein the adhesive tape (4) comprises an adhesive tape base (7) and two ears, the two ears are symmetrically connected to the upper surface of the adhesive tape base (7), the axes of the two ears are parallel to the length direction of the adhesive tape base (7), a gap is formed in the middle position of each side lug of each ear, the ears are divided into a front half-section (5) and a rear half-section (6) of each ear through the gap, first strip holes for the ears on each side are respectively formed in two sides of the elastic medium block (3), the lower surface of the elastic medium block (3) is in contact with the upper surface of the adhesive tape base (7), the loading aluminum plate (2) comprises an aluminum plate base (10) and a cross beam vertically connected with the aluminum plate base (10), second strip holes for the ears to pass through are respectively formed in two sides of the length direction of the aluminum plate base (10), the upper surface of the elastic medium block (3) is contacted with the lower surface of the aluminum plate base (10), the cross beam is clamped in the gaps, the ears are provided with first strip holes for the ears to pass through the middle positions of the corresponding to the cross beam (8) and the cross beam is provided with the corresponding holes in the middle positions of the two sides of the ears (9.
  2. 2. The bidirectional loading module according to claim 1, wherein the first elongated hole on the elastic medium block (3) comprises a front half section first elongated hole and a rear half section first elongated hole which are separately arranged, the front half section first elongated hole is used for passing through the front half section (5) of the vertical ear, and the rear half section first elongated hole is used for passing through the rear half section (6) of the vertical ear.
  3. 3. The bidirectional loading module according to claim 1, wherein the adhesive tape (4) comprises two layers of double-lug cloth (11) on the upper layer and a single-layer base cloth (12) on the bottom layer, the two layers of double-lug cloth (11) are sewn to form lugs, and the two layers of double-lug cloth (11) are sewn with the single-layer base cloth (12) to form the adhesive tape base (7).
  4. 4. A bi-directional loading module as claimed in claim 3, wherein the slot has a width of 10mm.
  5. 5. A bi-directional loading module as claimed in claim 3, wherein the inner diameter of the circular part of the lugs is 25mm and the distance between the centers of the circular parts of the lugs on both sides is 70mm.
  6. 6. A bi-directional loading module according to claim 3, wherein the single side of the two layers of binaural cloth (11) being unfolded is slit 8 lines along the long axis direction of the adhesive tape (4) at intervals of 10mm, and the two layers of binaural cloth (11) are bilaterally symmetrical.
  7. 7. A bidirectional loading module according to claim 3, wherein when the two layers of double-lug cloth (11) and the single-layer base cloth (12) are stitched, stitching lines (13) of the vertical lugs close to the circular position are stitching lines 3 with a distance of 2mm, stitching lines (13) of the vertical lugs close to the end of the adhesive tape base (7) are stitching lines 3 with a distance of 10mm, and symmetrical lines of the stitching lines (13) between the two layers of double-lug cloth (11) and the single-layer base cloth (12) from the outer side to the two sides are stitching lines 3 with a distance of 5mm, stitching lines 4 with a distance of 2mm on one side, stitching lines 2 with a distance of 5mm and stitching lines 3 with a distance of 10mm respectively.
  8. 8. A method of loading a bi-directional loading module as recited in any of claims 1-7, wherein the method comprises: the two ears of the adhesive tape (4) respectively penetrate through the first strip-shaped holes of the elastic medium block (3), and the bottom of the elastic medium block (3) is propped against the upper surface of the adhesive tape base (7); The double ear parts of the adhesive tapes (4) penetrating through the elastic medium blocks (3) respectively penetrate through second strip holes of the loading aluminum plates (2), and the aluminum plate base (10) is propped against the upper surface of the elastic medium blocks (3); the aluminum bar (1) sequentially passes through the front half section (5) of the vertical lug, the round hole (9) and the rear half section (6) of the vertical lug; the lower surface of an adhesive tape base (7) is adhered to the surface of a test piece, and the bolt end of a double-lug connecting piece connected with an actuating cylinder is connected with a threaded hole (8); When a pulling load is applied, the loading aluminum plate (2) is pulled to act on the aluminum bars (1) at two sides, the aluminum bars (1) uniformly transmit the pulling load to two ears of the adhesive tape (4), and the adhesive tape (4) is tightly attached to the surface of a test piece, so that the pulling load of the test piece is realized; When the pressing load is applied, the loading aluminum plate (2) is pressed, and the pressing load is sequentially and uniformly transferred to the elastic medium block (3) and the adhesive tape (4) until the surface of the test piece.
  9. 9. A method of making a tape according to any one of claims 3 to 7, said method comprising: The two layers of double-lug cloth (11) are unfolded and sewed, and the single side is sewed with 8 lines at intervals of 10mm along the long axis direction of the adhesive tape (4) and is vertically symmetrical; Sewing the two layers of the double-lug cloth (11) to manufacture vertical lugs, wherein the distance between the vertical lugs and the circular position is 2mm, and the distance between the vertical lugs and the adhesive tape base (7) is 10 mm; And sewing the two layers of sewed double-lug cloth (11) and the single-layer base cloth (12) to manufacture an adhesive tape base (7), sewing 4 lines at a single-side spacing of 2mm at a position corresponding to the vertical lugs, sewing 3 lines at a spacing of 5mm at the outer side of the adhesive tape base (7), sewing 2 lines at a spacing of 5mm at the inner side, and sewing 3 lines at a spacing of 10mm at a partial spacing of the symmetrical lines of the two sides.

Description

Bidirectional loading module, loading method and adhesive tape manufacturing method Technical Field The application relates to the technical field of strength tests, in particular to a bidirectional loading module, a loading method and a manufacturing method of an adhesive tape. Background In the ground verification test of structural strength of an aircraft, it is necessary to convert aerodynamic and inertial loads of the aircraft into distributed loads applied to the surface of a test piece. When the load state is more, the wing surfaces of the wing, the horizontal tail, the vertical tail and the like all have the requirement of bidirectional load application. Under the condition that bidirectional loading is required, unidirectional loading devices are uniformly distributed on the wing surfaces of the two sides, so that the problems of occupying test resources, being unfavorable for surface inspection of test pieces and the like are generated. Therefore, the searching of the more efficient and reliable bidirectional loading device can realize the application of bidirectional load to a single airfoil, improve the test efficiency, avoid the mutual interference of loading points and facilitate the test and inspection. The traditional loading mode has adhesive tape loading, but the mode can only apply pulling load and cannot load bidirectionally. The other loading mode is that the tension and compression pad is loaded, and a) the two-way load can be applied, namely, a first generation tension and compression pad adopts four parts of a special adhesive tape, an elastic medium block, a clamp and an aluminum bar, and the rubber block is easy to deviate in use, so that the compression load cannot be applied, and meanwhile, the test piece is damaged. In order to avoid the rubber block from falling out, the rubber block needs to be continuously checked in the loading process, and the labor is consumed, b) the second generation and the third generation of the pulling and pressing pads comprise two parts, namely the rubber block and the aluminum plate, the rubber block and the aluminum plate are pasted to form the pulling and pressing pad, and gaps are eliminated, but the risk of incomplete lamination or incomplete solidification of the adhesive still exists when the rubber block is pasted with a test piece due to the characteristics of the rubber block. Meanwhile, the rubber block is adhered to each piece of the surface, and the numerical control machine tool is required to be modified according to the appearance of the test piece, so that the cost is high. Disclosure of Invention In view of the above, embodiments of the present application provide a bidirectional loading module, a loading method and a manufacturing method of an adhesive tape, which at least partially solve the problems of bidirectional load application, reliability improvement and cost reduction. According to the bidirectional loading module, the bidirectional loading module comprises an aluminum rod, a loading aluminum plate, an elastic medium block and an adhesive tape, wherein the adhesive tape comprises an adhesive tape base and two ears, the two ears are symmetrically connected to the upper surface of the adhesive tape base, the axes of the two ears are parallel to the length direction of the adhesive tape base, a gap is formed in the middle position of each side lug of each ear, the ears are divided into a front half section and a rear half section of each lug through the gap, first strip holes for each side lug to pass through are formed in two sides of the elastic medium block respectively, the lower surface of the elastic medium block is in contact with the upper surface of the adhesive tape base, the loading aluminum plate comprises an aluminum plate base and a cross beam vertically connected with the aluminum plate base, second strip holes for the lugs to pass through are formed in two sides of the aluminum plate base, the upper surface of the elastic medium block is in contact with the lower surface of the aluminum plate base, the cross beam is clamped in the gaps of the lugs, threaded holes with the holes are formed in the middle positions of the cross beam, the two sides of the cross beam are provided with round holes corresponding to the lugs, and the aluminum rod is inserted into the lugs. According to a specific implementation manner of the embodiment of the application, the first strip hole on the elastic medium block comprises a first half section first strip hole and a second half section first strip hole which are arranged separately, wherein the first half section first strip hole is used for passing through the front half section of the vertical lug, and the second half section first strip hole is used for passing through the second half section of the vertical lug. According to a specific implementation mode of the embodiment of the application, the adhesive tape comprises two layers of double-lug cloth on the upper layer a