Instrument installation bearing beam structure

Abstract

The utility model relates to the technical field of aerospace, in particular to an instrument installation bearing beam structure which comprises a straight I-shaped main beam, an arc-shaped I-shaped main beam and multiple sections of straight I-shaped auxiliary beams. One end of the straight I-shaped main beam is fixedly connected with one end of the arc-shaped I-shaped main beam, the other end of the straight I-shaped main beam is fixedly connected with the other end of the arc-shaped I-shaped main beam, and the middle part of the arc-shaped I-shaped main beam protrudes in the direction away from the straight I-shaped main beam; one end of each straight I-shaped auxiliary beam is fixedly connected with the inner side of the straight I-shaped main beam, the other end of each straight I-shaped auxiliary beam is fixedly connected with the inner side of the arc-shaped I-shaped main beam, and the inner side of the straight I-shaped main beam is opposite to the inner side of the arc-shaped I-shaped main beam. The straight I-shaped main beam, the arc-shaped I-shaped main beam and all the straight I-shaped auxiliary beams are made of carbon fiber materials. The weight of the bearing beam structure of the instrument mounting structure system can be reduced, and the rigidity and strength of the bearing beam structure can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerospace technology, in particular to an instrument installation bearing beam structure. BACKGROUND

[0002] The installation position of instrument equipment in the instrument cabin of a carrier is usually the wall of the rocket and the cabin, however, many important instrument equipment, especially the control system, needs a good flight environment that can resist strong vibration and noise, so a strong and rigid instrument installation structure system needs to be set in the cabin. The traditional instrument installation structure system includes a bearing structure and an instrument equipment installation plate, the bearing structure is built in the cabin, the instrument equipment installation plate is carried on the bearing structure, and the instrument equipment is installed on the instrument equipment installation plate.

[0003] At present, the bearing beam structure of the traditional instrument installation structure system is basically composed of ring-shaped stringers, triangular braces or eight-claw beams, etc. These components need to be connected with the cabin body, for example, a plurality of triangular braces are arranged at a certain angle, the side surface of the triangular brace is connected with the cabin body, and the upper end surface of the triangular brace fixes the instrument equipment installation plate. However, the material of this bearing beam structure is usually metal, the weight ratio is large, and there is a lot of redundant weight in addition to the structure function, which greatly reduces the carrying capacity of the carrier and increases the launch cost, so this bearing beam structure is not suitable for the spacecraft structure which has extreme requirements for carrying and light weight.

[0004] Therefore, how to make the instrument installation bearing beam structure have high strength, high rigidity and light weight is a technical problem that needs to be solved by the technical personnel in the field at present. CONTENT OF THE INVENTION

[0005] The present application provides an instrument installation bearing beam structure to reduce the weight of the bearing beam structure of the instrument installation structure system and improve the rigidity and strength of the bearing beam structure.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] An instrument installation bearing beam structure, comprising: a straight I-shaped main beam, an arc-shaped I-shaped main beam and a plurality of straight I-shaped auxiliary beams; one end of the straight I-shaped main beam is fixedly connected with one end of the arc-shaped I-shaped main beam, the other end of the straight I-shaped main beam is fixedly connected with the other end of the arc-shaped I-shaped main beam, and the middle part of the arc-shaped I-shaped main beam protrudes away from the straight I-shaped main beam; one end of each straight I-shaped auxiliary beam is fixedly connected with the inner side of the straight I-shaped main beam, and the other end of each straight I-shaped auxiliary beam is fixedly connected with the inner side of the arc-shaped I-shaped main beam, wherein the inner side of the straight I-shaped main beam is opposite to the inner side of the arc-shaped I-shaped main beam, and the material of the straight I-shaped main beam, the arc-shaped I-shaped main beam and all the straight I-shaped auxiliary beams is carbon fiber material.

[0008] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, all the straight I-shaped auxiliary beams are distributed at intervals.

[0009] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, four straight I-shaped auxiliary beams are fixedly connected between the straight I-shaped main beam and the arc-shaped I-shaped main beam.

[0010] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the two straight I-shaped auxiliary beams located at the middle positions are both perpendicular to the straight I-shaped main beam, and the two straight I-shaped auxiliary beams located at the two side positions are both gradually away from the straight I-shaped auxiliary beams located at the middle positions from the straight I-shaped main beam to the arc-shaped I-shaped main beam.

[0011] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the straight I-shaped main beam, the arc-shaped I-shaped main beam and all the straight I-shaped auxiliary beams are beams formed by carbon fiber unidirectional tape laying.

[0012] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the upper flange plates of the straight I-shaped main beam, the arc-shaped I-shaped main beam and all the straight I-shaped auxiliary beams are all upward, and the lower flange plates of the straight I-shaped main beam, the arc-shaped I-shaped main beam and all the straight I-shaped auxiliary beams are all downward.

[0013] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the outer edge of the upper flange plate of the arc-shaped I-shaped main beam is fixedly connected with an upper side plate, and the upper side plate extends upward, the outer edge of the lower flange plate of the arc-shaped I-shaped main beam is fixedly connected with a lower side plate, and the lower side plate extends downward, and the materials of the upper side plate and the lower side plate are carbon fiber materials.

[0014] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the upper side plate and the lower side plate are both plates formed by carbon fiber unidirectional tape laying.

[0015] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the thicknesses of the upper flange plates and the lower flange plates of the straight I-shaped main beam and the straight I-shaped auxiliary beam are both 8 mm, and the thicknesses of the middle webs of the straight I-shaped main beam and the straight I-shaped auxiliary beam are both 7.8 mm.

[0016] The instrument mounting load-bearing beam structure as claimed in any one of the preceding claims, wherein preferably, the thicknesses of the upper flange plate and the lower flange plate of the arc-shaped I-shaped main beam are both 8 mm, the thickness of the middle web is 7.8 mm, and the thicknesses of the upper side plate and the lower side plate are both 5 mm.

[0017] In view of the prior art, the upper surface of the instrument mounting load-bearing beam structure can be connected to the instrument mounting plate and the inertial unit support, the material of the instrument mounting load-bearing beam structure is carbon fiber material, the structural strength and rigidity of the instrument mounting load-bearing beam structure are relatively high, the technical indexes can meet the overall requirements, the economic efficiency and lightweight design requirements can be fully considered, and the instrument mounting load-bearing beam structure is a ring-shaped structure and is suitable for being mounted in a large-diameter cylinder segment structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 FIG. 1 is a schematic diagram of an instrument mounting load-bearing beam structure provided by an embodiment of the present application;

[0020] Figure 2 FIG. 2 is a sectional schematic diagram of the instrument mounting load-bearing beam structure provided by the embodiment of the present application. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be interpreted as a limitation on the present application.

[0022] As shown in FIGS. Figure 1 and Figure 2 The present application provides an instrument mounting load-bearing beam structure, which comprises: a straight I-shaped main beam 110, an arc-shaped I-shaped main beam 120 and a plurality of straight I-shaped auxiliary beams 130; one end of the straight I-shaped main beam 110 is fixedly connected to one end of the arc-shaped I-shaped main beam 120, the other end of the straight I-shaped main beam 110 is fixedly connected to the other end of the arc-shaped I-shaped main beam 120, and the middle part of the arc-shaped I-shaped main beam 120 protrudes away from the straight I-shaped main beam 110; one end of each straight I-shaped auxiliary beam 130 is fixedly connected to the inner side of the straight I-shaped main beam 110, and the other end of each straight I-shaped auxiliary beam 130 is fixedly connected to the inner side of the arc-shaped I-shaped main beam 120, wherein the inner side of the straight I-shaped main beam 110 is opposite to the inner side of the arc-shaped I-shaped main beam 120; and the material of the straight I-shaped main beam 110, the arc-shaped I-shaped main beam 120 and all the straight I-shaped auxiliary beams 130 is carbon fiber material.

[0023] The main function of the straight I-beam main girder 110 and the multi-section straight I-beam auxiliary girder 130 is to be connected with the arc-shaped I-beam main girder 120, and the instrument mounting plate and the like are lapped on the upper surface thereof; the main function of the arc-shaped I-beam main girder 120 is to be connected with the cabin body, and is riveted on the stringer and / or the middle frame of the cabin body, and the upper surface of the arc-shaped I-beam main girder 120 can also lap the instrument mounting plate.

[0024] Optionally, all the straight I-beam auxiliary girders 130 are distributed at intervals. Further optionally, four straight I-beam auxiliary girders 130 are fixedly connected between the straight I-beam main girder 110 and the arc-shaped I-beam main girder 120. Yet further optionally, the two straight I-beam auxiliary girders 130 located at the middle positions are both perpendicular to the straight I-beam main girder 110, and the two straight I-beam auxiliary girders 130 located at the two sides are gradually away from the straight I-beam auxiliary girder 130 located at the middle position from the straight I-beam main girder 110 to the arc-shaped I-beam main girder 120. Still further optionally, the straight I-beam main girder 110, the arc-shaped I-beam main girder 120 and all the straight I-beam auxiliary girders 130 are beams formed by carbon fiber unidirectional tape, wherein the carbon fiber unidirectional tape is a composite material formed by carbon fiber tows passing through a directional mechanism to arrange in one direction, all the carbon fibers are arranged in one direction, and there are almost no carbon fibers in the vertical direction, forming a unidirectional fiber structure.

[0025] In addition, the upper flange plates of the straight I-beam main girder 110, the arc-shaped I-beam main girder 120 and all the straight I-beam auxiliary girders 130 all face upwards, and the lower flange plates of the straight I-beam main girder 110, the arc-shaped I-beam main girder 120 and all the straight I-beam auxiliary girders 130 all face downwards. In order to ensure the contact area of the outer side of the arc-shaped I-beam main girder 120 with the inner wall of the cabin body, thereby ensuring the stability of the fixation of the arc-shaped I-beam main girder 120 with the inner wall of the cabin body, therefore, the outer edge of the upper flange plate of the arc-shaped I-beam main girder 120 is fixedly connected with an upper side plate, and the upper side plate extends upwards, the outer edge of the lower flange plate of the arc-shaped I-beam main girder 120 is fixedly connected with a lower side plate, and the lower side plate extends downwards, and the materials of the upper side plate and the lower side plate are carbon fiber materials. Optionally, the upper side plate and the lower side plate are plates formed by carbon fiber unidirectional tape.

[0026] On the basis of the above, the thicknesses of the upper flange plates and the lower flange plates of the straight I-beam main girder 110 and the straight I-beam auxiliary girder 130 are both 8 mm, and the thickness of the middle web plate is 7.8 mm; the thicknesses of the upper flange plate and the lower flange plate of the arc-shaped I-beam main girder 120 are both 8 mm, the thickness of the middle web plate is 7.8 mm, and the thicknesses of the upper side plate and the lower side plate are both 5 mm.

[0027] The upper surface of the instrument mounting load-bearing beam structure of the application can be connected with the instrument mounting plate and the inertial measurement unit support, and since the material of the instrument mounting load-bearing beam structure of the application is carbon fiber material, the structural strength and rigidity of the instrument mounting load-bearing beam structure are relatively high, the technical indexes can meet the overall requirements, and the economic efficiency and lightweight design requirements can also be fully considered. In addition, the instrument mounting load-bearing beam structure of the application is a ring structure, which is suitable for being installed in a large-diameter cylinder segment structure.

[0028] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An instrument mounting load-bearing beam structure, characterized in that, The utility model relates to a kind of carbon fiber beam, including: Straight I-beam, arc I-beam and multi-section straight I-beam auxiliary beam; One end of straight I-beam is fixedly connected with one end of arc I-beam, the other end of straight I-beam is fixedly connected with the other end of arc I-beam, and the middle part of arc I-beam protrudes away from straight I-beam; One end of each straight I-beam auxiliary beam is fixedly connected with the inner side of straight I-beam, and the other end of each straight I-beam auxiliary beam is fixedly connected with the inner side of arc I-beam, wherein the inner side of straight I-beam is opposite to the inner side of arc I-beam, and the material of straight I-beam, arc I-beam and all sections of straight I-beam auxiliary beam is carbon fiber material.

2. An instrument installation girder structure according to claim 1, characterized in that All straight I-beam auxiliary beams are distributed at intervals.

3. An instrument mounting girder structure according to claim 1 or 2, c h a r a c t e r i s e d in that Four straight I-beam auxiliary beams are fixedly connected between straight I-beam and arc I-beam.

4. An instrument installation girder structure according to claim 3, characterized in that The two straight I-beam auxiliary beams located in the middle position are perpendicular to straight I-beam, and the two straight I-beam auxiliary beams located on both sides gradually move away from the straight I-beam auxiliary beam located in the middle position from straight I-beam to arc I-beam.

5. An instrument installation girder structure according to claim 1 or 2, characterized in that Straight I-beam, arc I-beam and all sections of straight I-beam auxiliary beam are beams formed by carbon fiber unidirectional tape.

6. An instrument installation girder structure according to claim 1 or 2, characterized in that The upper flange plate of straight I-beam, the upper flange plate of arc I-beam and the upper flange plate of all sections of straight I-beam auxiliary beam all face upwards. The lower flange plate of straight I-beam, the lower flange plate of arc I-beam and the lower flange plate of all sections of straight I-beam auxiliary beam all face downwards.

7. An instrument installation girder structure according to claim 6, c h a r a c t e r i z e d in that The outer edge of the upper flange plate of arc I-beam is fixedly connected with an upper side plate, and the upper side plate extends upwards; the outer edge of the lower flange plate of arc I-beam is fixedly connected with a lower side plate, and the lower side plate extends downwards; and the material of the upper side plate and the lower side plate is carbon fiber material.

8. An instrument installation girder structure according to claim 7, characterised in that The upper side plate and the lower side plate are plates formed by carbon fiber unidirectional tape.

9. The instrument installation girder structure according to claim 6, characterized in that The thickness of the upper flange plate and the lower flange plate of straight I-beam and straight I-beam auxiliary beam is 8mm, and the thickness of the middle web plate of straight I-beam (110) and straight I-beam auxiliary beam (130) is 7.8mm.

10. The instrument installation girder structure according to claim 7, characterized in that The thickness of the upper flange plate and the lower flange plate of arc I-beam is 8mm, the thickness of the middle web plate is 7.8mm, and the thickness of the upper side plate and the lower side plate is 5mm.

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