A wing box section pure bending moment load strength test device

Abstract

The present application relates to a pure bending moment load strength test device for a wing box segment, which is used to perform a pure bending moment load strength test for the wing box segment. The first actuator cylinder and the second actuator cylinder can apply load to the wing box segment through the first loading box segment, the first loading adapter plate, the first end adapter plate, the first end steel plate, and the second loading box segment, the second loading adapter plate, the second end adapter plate, and the second end steel plate. During this process, the first end pad connected to the bottom side of the first loading box segment and the first end convex hinge supported by the first end bracket can rotate and translate in the span direction, while the second end convex hinge connected to the second loading box segment and the second end concave hinge supported by the second end bracket can only rotate and cannot translate in the span direction, thereby ensuring that the pure bending moment load can be applied to the wing box segment stably. In addition, when the test load is large, the smooth completion of the test can be guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of pure bending moment load strength test design for wing box segments, and specifically relates to a pure bending moment load strength test device for wing box segments. Background Art

[0002] In the pure bending moment load strength test of the wing box section, a corner box is usually set up outside the wing box section and connected to the fixture by bolts for loading. When the test load is relatively small, the test can be completed well and the strength of the wing box section can be verified. However, when the test load is large, it is difficult to complete the test due to the limitation of the bolt strength.

[0003] This application is proposed in view of the above-mentioned technical defects.

[0004] It should be noted that the disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of the present application. In the absence of clear evidence that the above content has been disclosed on the filing date of the present application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the Invention

[0005] The purpose of the present application is to provide a wing box section pure bending moment load strength test device to overcome or alleviate at least one aspect of the known technical defects.

[0006] The technical solution of this application is:

[0007] A wing box section pure bending moment load strength test device, comprising:

[0008] a first bottom beam having a first bottom beam connecting hole thereon;

[0009] The first pull plate has one end inserted into the connecting hole of the first bottom beam and is connected to the first bottom beam via a pin shaft;

[0010] The first actuating cylinder has a cylinder body and the other end of the first pull plate connected by a pin through a single-double-ear structure;

[0011] a first dynamometer, screwed onto the piston rod of the first actuator;

[0012] a first single ear, screwed onto the first dynamometer;

[0013] The first double ears are connected to the first single ear via a pin;

[0014] The first loading box section has a bottom side at one end connected to the first double ears by bolts;

[0015] First loading adapter plate;

[0016] Two first connecting corner boxes are connected to both sides of the other end of the first loading box segment by bolts, and are also connected to the first loading adapter plate by bolts;

[0017] The first end adapter plate is connected to the first loading adapter plate via bolts;

[0018] Two first end steel plates, one end of which is connected to both sides of one end of the wing box section by bolts;

[0019] Two pairs of first end corner boxes are connected to the other ends of the two first end steel plates by bolts, and are also connected to the first end adapter plates by bolts;

[0020] a second bottom beam having a second bottom beam connecting hole;

[0021] The second pull plate has one end inserted into the connecting hole of the second bottom beam and is connected to the second bottom beam via a pin shaft;

[0022] The second actuating cylinder has a cylinder body and the other end of the second pull plate connected by a pin through a single-double-ear structure;

[0023] a second dynamometer, screwed onto the piston rod of the second actuator;

[0024] a second single ear, screwed onto the second dynamometer;

[0025] The second double ear is connected to the second single ear via a pin;

[0026] The second loading box section has a bottom side at one end connected to the second double ears by bolts;

[0027] a second loading adapter plate;

[0028] Two second connecting corner boxes are connected to both sides of the other end of the second loading box segment by bolts, and are also connected to the second loading adapter plate by bolts;

[0029] The second end adapter plate is connected to the second loading adapter plate via bolts;

[0030] two second end steel plates, one end of which is connected to both sides of the other end of the wing box section by bolts;

[0031] Two pairs of second end corner boxes are connected to both sides of the other ends of the two second end steel plates by bolts, and are also connected to the second end adapter plates by bolts;

[0032] a first end bracket connected to the first bottom beam;

[0033] A first end convex hinge connected to the first end bracket;

[0034] A first end pad is connected between the bottom side of the first loading box section facing the wing box section and contacts the convex surface of the first end convex hinge;

[0035] a second end bracket connected to the second bottom beam;

[0036] The second end is concavely hinged and connected to the second end bracket;

[0037] The second end convex hinge is connected between the bottom sides of one end of the second loading box section facing the wing box section, and is matched with the concave and convex surfaces of the second end concave hinge.

[0038] According to at least one embodiment of the present application, in the above-mentioned wing box section pure bending moment load strength test device, there are two sets of the first bottom beam and its corresponding first pull plate, first actuator, first dynamometer, first single ear, and first double ears;

[0039] There are two sets of the second bottom beam and its corresponding second pull plate, second actuator, second dynamometer, second single ear, and second double ear;

[0040] The wing box section pure bending moment load strength test device further includes:

[0041] A first crossbeam is connected to the bottom side of one end of the first loading box section facing away from the wing box section, and its two ends are connected to the two first double ears by bolts;

[0042] The second crossbeam is connected to the bottom side of one end of the second loading box section facing away from the wing box section, and its two ends are connected to the two second double ears by bolts.

[0043] According to at least one embodiment of the present application, in the above-mentioned wing box section pure bending moment load strength test device, the first loading adapter plate and the first end adapter plate have a plurality of bolt countersunk holes for corresponding bolt heads to sink into;

[0044] The second loading adapter plate and the second loading adapter plate are provided with a plurality of bolt countersunk holes for corresponding bolt heads to sink into.

[0045] According to at least one embodiment of the present application, the above-mentioned wing box section pure bending moment load strength test device further includes:

[0046] Two limit angle boxes are connected to the second end bracket to limit the spanwise translation of the wing box section. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Schematic diagram of a wing box segment pure bending moment load strength test apparatus provided in an embodiment of the present application;

[0048] Figure 2 Schematic diagram of the first bottom beam and the second bottom beam provided in the embodiment of the present application;

[0049] Figure 3 Schematic diagram of the first and second pull plates provided in the embodiment of the present application;

[0050] Figure 4 Schematic diagrams of the combined structure of the first actuator, the first dynamometer, the first single ear, and the first double ears, and the combined structure of the second actuator, the second dynamometer, the second single ear, and the second double ears provided in the embodiments of the present application;

[0051] Figure 5 is a reference schematic diagram of the first crossbeam and the second crossbeam provided in an embodiment of the present application;

[0052] Figure 6 Schematic diagrams of the combined structure of the first loading box segment, the first loading adapter plate, and the first connecting corner box, and the combined structure of the second loading box segment, the second loading adapter plate, and the second connecting corner box provided in an embodiment of the present application;

[0053] Figure 7 Schematic diagram of the first and second end adapter plates provided in the embodiment of the present application;

[0054] Figure 8 1 is a reference schematic diagram of a first end corner box and a second end corner box provided in an embodiment of the present application;

[0055] Figure 9 Schematic diagram of the first and second end brackets provided in the embodiment of the present application;

[0056] Figure 10 Schematic diagram of the first and second end convex hinges provided in the embodiment of the present application;

[0057] Figure 11 is a reference schematic diagram of the second end concave hinge provided in an embodiment of the present application;

[0058] Figure 12 is a reference schematic diagram of the first end pad provided in an embodiment of the present application;

[0059] Figure 13 is a reference schematic diagram of the limit angle box provided in an embodiment of the present application;

[0060] Figure 14 This is a reference schematic diagram of the combined structure of the first end steel plate, the wing box section, and the second end steel plate provided in an embodiment of the present application;

[0061] Figure 15 This is a reference schematic diagram of the combined structure of the first end steel plate, the wing box section, the second end steel plate, the first end corner box, and the second end corner box provided in an embodiment of the present application;

[0062] Figure 16 It is a partial schematic diagram of a wing box section pure bending moment load strength test device provided in an embodiment of the present application;

[0063] in:

[0064] 1-first bottom beam; 2-first pull plate; 3-first actuator; 4-first dynamometer; 5-first single ear; 6-first double ear; 7-first loading box section; 8-first loading adapter plate; 9-first connecting corner box; 10-first end adapter plate; 11-first end steel plate; 12-wing box section; 13-first end corner box; 14-second bottom beam; 15-second pull plate; 16-second actuator; 17-second dynamometer; 18-second Single ear; 19-second double ear; 20-second loading box section; 21-second loading adapter plate; 22-second connecting corner box; 23-second end adapter plate; 24-second end steel plate; 25-second end corner box; 26-first end bracket; 27-first end convex hinge; 28-first end pad; 29-second end bracket; 30-second end concave hinge; 31-second end convex hinge; 32-first crossbeam; 33-second crossbeam; 34-limiting corner box.

[0065] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and should not be understood as limiting this application. DETAILED DESCRIPTION

[0066] To make the technical solution and its advantages of the present application clearer, the technical solution of the present application will be described in further detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of the present application and are only used to explain the present application, not to limit the present application. It should be noted that, for ease of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0067] In addition, unless otherwise defined, the technical or scientific terms used in the description of this application should have the ordinary meanings understood by those of ordinary skill in the art to which this application belongs. The words "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer" used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, be constructed, or operate in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. Therefore, they should not be understood as limitations on this application. The words "first," "second," "third," and similar terms used in the description of this application are used only for descriptive purposes to distinguish different components and should not be understood to indicate or imply relative importance. The words "one," "an," or "the" used in the description of this application should not be understood as absolute limitations on quantity, but should be understood as meaning the presence of at least one. The words "include" or "comprises" used in the description of this application mean that the element or object listed before the word includes the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.

[0068] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the words "install", "connect", "connect" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0069] The following is combined with Figures 1 to 16 This application is described in further detail.

[0070] A wing box section pure bending moment load strength test device, comprising:

[0071] A first bottom beam 1 having a first bottom beam connecting hole;

[0072] One end of the first pull plate 2 is inserted into the connecting hole of the first bottom beam and is connected to the first bottom beam 1 via a pin;

[0073] The first actuating cylinder 3, whose cylinder body is connected to the other end of the first pull plate 2 by a pin through a single-double-ear structure;

[0074] A first dynamometer 4 is screwed onto the piston rod of the first actuator 3;

[0075] A first single ear 5 is screwed onto the first dynamometer 4;

[0076] The first double ears 6 are connected to the first single ear 5 via a pin;

[0077] The first loading box section 7 has one end bottom side connected to the first double ears 6 by bolts;

[0078] First loading adapter plate 8;

[0079] Two first connecting corner boxes 9 are connected to both sides of the other end of the first loading box section 7 by bolts, and are also connected to the first loading adapter plate 8 by bolts;

[0080] The first end adapter plate 10 is connected to the first loading adapter plate 8 by bolts;

[0081] Two first end steel plates 11, one end of which is connected to both sides of one end of the wing box section 12 by bolts;

[0082] Two pairs of first end corner boxes 13 are connected to both sides of the other ends of the two first end steel plates 11 by bolts, and are also connected to the first end adapter plate 10 by bolts;

[0083] A second bottom beam 14 having a second bottom beam connecting hole;

[0084] One end of the second pull plate 15 is inserted into the second bottom beam connection hole and is connected to the second bottom beam 14 via a pin;

[0085] The second actuator 16, whose cylinder body is connected to the other end of the second pull plate 15 by a single-double-ear structure and a pin;

[0086] A second dynamometer 17 is screwed onto the piston rod of the second actuator 16;

[0087] A second single ear 18 is screwed onto the second dynamometer 17;

[0088] The second double ears 19 are connected to the second single ear 18 via a pin;

[0089] The second loading box section 20 has a bottom side at one end connected to the second double ears 19 by bolts;

[0090] Second loading adapter plate 21;

[0091] Two second connecting corner boxes 22 are connected to both sides of the other end of the second loading box section 20 by bolts, and are also connected to the second loading adapter plate 21 by bolts;

[0092] The second end adapter plate 23 is connected to the second loading adapter plate 21 via bolts;

[0093] Two second end steel plates 24, one end of which is connected to both sides of the other end of the wing box section 12 by bolts;

[0094] Two pairs of second end corner boxes 25 are connected to the other ends of the two second end steel plates 24 by bolts, and are also connected to the second end adapter plate 23 by bolts;

[0095] The first end bracket 26 is connected to the first bottom beam 1;

[0096] A first end convex hinge 27 connected to the first end bracket 26;

[0097] A first end pad 28 is connected between the bottom side of the first loading box section 7 facing the wing box section 12 and contacts the convex surface of the first end convex hinge 27;

[0098] The second end bracket 29 is connected to the second bottom beam 14;

[0099] The second end recessed hinge 30 is connected to the second end bracket 29;

[0100] The second end convex hinge 31 is connected between the bottom side of one end of the second loading box section 20 facing the wing box section 12 and is matched with the concave and convex surface of the second end concave hinge 30.

[0101] The wing box segment pure bending moment load strength test device disclosed in the above embodiment is used to conduct a wing box segment pure bending moment load strength test. The first actuator cylinder 3 and the second actuator cylinder 16 can apply load to the wing box segment 12 through the first loading box segment 7, the first loading adapter plate 8, the first end adapter plate 10, the first end steel plate 11, and the second loading box segment 20, the second loading adapter plate 21, the second end adapter plate 23, and the second end steel plate 24. During this process, the first end pad 28 connected to the bottom side of the first loading box segment 7 and the first end convex hinge 27 supported by the first end bracket 26 can rotate and translate in the span direction, while the second end convex hinge 31 connected to the second loading box segment 20 and the second end concave hinge 3 supported by the second end bracket 29 can rotate and translate in the span direction. 0, only rotation can be started, and spanwise translation cannot occur, which can ensure that a pure bending moment load can be applied to the wing box section 12 stably. In addition, the first loading box section 7, the first loading adapter plate 8, the first end adapter plate 10, and the first end steel plate 11 are connected by bolts with the first connecting angle box 9 and the first end angle box 13, and the second loading box section 20, the second loading adapter plate 21, the second end adapter plate 23, and the second end steel plate 24 are connected by bolts with the second connecting angle box 22 and the second end angle box 25. The first end steel plate 11 and the second end steel plate 24 are connected by bolts at both ends and both sides of the wing box section 12, and are subjected to double shear load during the test, which can ensure the smooth completion of the test when the test load is large.

[0102] In some optional embodiments, in the above-mentioned wing box section pure bending moment load strength test device, the first bottom beam 1 and its corresponding first pull plate 2, first actuator 3, first dynamometer 4, first single ear 5, and first double ears 6 are provided in two groups;

[0103] There are two sets of the second bottom beam 14 and its corresponding second pull plate 15, second actuator 16, second dynamometer 17, second single ear 18, and second double ears 19;

[0104] The wing box section pure bending moment load strength test device further includes:

[0105] A first crossbeam 32 is connected to the bottom side of one end of the first loading box section 7 facing away from the wing box section 12, and its two ends are connected to the two first double ears 6 by bolts;

[0106] The second crossbeam 33 is connected to the bottom side of one end of the second loading box section 20 facing away from the wing box section 12, and its two ends are connected to the two second double ears 19 by bolts to ensure stable application of the test load.

[0107] In some optional embodiments, in the above-mentioned wing box segment pure bending moment load strength test device, the first loading adapter plate 8 and the first end adapter plate 10 have a plurality of bolt countersunk holes on their mating surfaces for the corresponding bolt heads to sink into, so as to avoid interference between the components;

[0108] The second loading adapter plate 21 and the mating surface of the second loading adapter plate 21 are provided with a plurality of bolt countersunk holes for corresponding bolt heads to sink into, so as to avoid interference between components.

[0109] In some optional embodiments, the above-mentioned wing box segment pure bending moment load strength test device further includes:

[0110] Two limiting angle boxes 33 are connected to the second end bracket 29 to limit the spanwise translation of the wing box section 12.

[0111] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in detail.

[0112] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or replacements to the relevant technical features, and the technical solutions after these changes or replacements will fall within the scope of protection of the present application.

Claims

1. A wing box section pure bending moment load strength test device, characterized in that: include: A first bottom beam (1) having a first bottom beam connecting hole; One end of the first pull plate (2) is inserted into the first bottom beam connection hole and is connected to the first bottom beam (1) via a pin shaft; A first actuating cylinder (3), the cylinder body of which is connected to the other end of the first pull plate (2) by a pin through a single-double-ear structure; A first dynamometer (4) is screwed onto the piston rod of the first actuator (3); A first single ear (5) is screwed onto the first dynamometer (4); The first double ears (6) are connected to the first single ear (5) via a pin; The first loading box section (7) has a bottom side at one end connected to the first double ears (6) via bolts; A first loading adapter plate (8); Two first connecting corner boxes (9) are connected to both sides of the other end of the first loading box section (7) by bolts, and are also connected to the first loading adapter plate (8) by bolts; The first end adapter plate (10) is connected to the first loading adapter plate (8) via bolts; Two first end steel plates (11), one end of which is connected to both sides of one end of the wing box section (12) by bolts; Two pairs of first end corner boxes (13) are connected to both sides of the other ends of the two first end steel plates (11) by bolts, and are also connected to the first end adapter plate (10) by bolts; A second bottom beam (14) having a second bottom beam connection hole; One end of the second pull plate (15) is inserted into the second bottom beam connection hole and is connected to the second bottom beam (14) via a pin shaft; A second actuating cylinder (16), the cylinder body of which is connected to the other end of the second pull plate (15) by a pin through a single-double-ear structure; A second dynamometer (17) is screwed onto the piston rod of the second actuator (16); A second single ear (18) is screwed onto the second dynamometer (17); The second double ear (19) is connected to the second single ear (18) via a pin; The second loading box section (20) has a bottom side at one end connected to the second double ears (19) by bolts; A second loading adapter plate (21); Two second connecting corner boxes (22) are connected to both sides of the other end of the second loading box section (20) by bolts, and are connected to the second loading adapter plate (21) by bolts; The second end adapter plate (23) is connected to the second loading adapter plate (21) via bolts; Two second end steel plates (24), one end of which is connected to both sides of the other end of the wing box section (12) by bolts; Two pairs of second end corner boxes (25) are connected to the other ends of the two second end steel plates (24) by bolts, and are also connected to the second end adapter plate (23) by bolts; A first end bracket (26) connected to the first bottom beam (1); A first end convex hinge (27) connected to the first end bracket (26); A first end pad (28) is connected between the bottom side of one end of the first loading box section (7) facing the wing box section (12) and contacts the convex surface of the first end convex hinge (27); A second end bracket (29) connected to the second bottom beam (14); A second end concave hinge (30) connected to the second end bracket (29); The second end convex hinge (31) is connected between the bottom side of one end of the second loading box section (20) facing the wing box section (12), and is arranged in cooperation with the concave and convex surface of the second end concave hinge (30).

2. The wing box section pure bending moment load strength test device according to claim 1 is characterized in that: There are two groups of the first bottom beam (1) and its corresponding first pull plate (2), first actuator (3), first dynamometer (4), first single ear (5), and first double ear (6); There are two sets of the second bottom beam (14) and its corresponding second pull plate (15), second actuator (16), second dynamometer (17), second single ear (18), and second double ear (19); The wing box section pure bending moment load strength test device further includes: A first crossbeam (32) is connected to the bottom side of one end of the first loading box section (7) facing away from the wing box section (12), and its two ends are connected to the two first double ears (6) by bolts; The second crossbeam (33) is connected to the bottom side of one end of the second loading box section (20) facing away from the wing box section (12), and its two ends are connected to the two second double ears (19) by bolts.

3. The wing box section pure bending moment load strength test device according to claim 1, characterized in that: The first loading adapter plate (8) and the first end adapter plate (10) are provided with a plurality of bolt countersunk holes for corresponding bolt heads to sink into; The second loading adapter plate (21) is provided with a plurality of bolt countersunk holes for corresponding bolt heads to sink into.

4. The wing box section pure bending moment load strength test device according to claim 1, characterized in that: Also includes: Two limiting angle boxes (34) are connected to the second end bracket (29) bracket to limit the spanwise translation of the wing box section (12).

Images