A cross-type load-bearing carbon fiber composite spacer

Abstract

The present invention discloses a cross-type load-bearing carbon fiber composite spacer, comprising two installation and positioning tubes which are arranged through a main body unit, a box-shaped wrapping layer is wrapped around the outer periphery of the main body unit, the main body unit comprises three parallel plate-like vertical beams, a group of support components are sandwiched between each adjacent vertical beam, the support component is a cross-shaped structure formed by splicing two hollow triangular supports, the three vertical beams are connected in series via two installation and positioning tubes, the installation and positioning tubes pass through the lower triangular support and are abutted against the two bottom inner corners of the lower triangular support, the two outer corners of the upper end of the upper triangular support serve as force-bearing parts, the vertical beams, the triangular support and the box-shaped wrapping layer are made of composite materials. The present invention adopts composite materials to make the main unit, which greatly reduces the weight of the overall structure, reduces the energy consumption during operation, and meets its high frequency requirements.

Description

Technical Field

[0001] The invention relates to a turntable, in particular to a turntable spacer. Background Art

[0002] In the field of composite structural parts, carbon fiber composite structural parts are widely used due to their high strength, light weight and good environmental adaptability. Rotating moving parts (such as turntables) are often used in various fields. For some environments with high weight requirements, turntables made of pure metal materials are heavy. In order to reduce the overall weight, the local structure of the turntable in the circumference can be replaced with spacers made of composite materials to achieve weight reduction. However, the various performances of the spacers during use are particularly important. During the operation of the turntable, the moving parts on both sides of the spacer will be subjected to tangential forces along the direction of rotation (clockwise is positive) under different working conditions. In order to maintain the relative position of the moving parts, a spacer structure is installed in the two moving parts. The spacer structure needs to withstand the support reaction force from the moving parts on both sides, so the tensile performance of the spacer is particularly important. Summary of the invention

[0003] The purpose of the present invention is to provide a cross-type load-bearing carbon fiber composite spacer, which uses vertical beams, triangular supports and box-shaped wrapping layers made of composite materials to reduce the weight of the spacer and has good strength and rigidity.

[0004] The objective of the present invention is achieved in this way: a cross-type load-bearing carbon fiber composite spacer, comprising two installation and positioning tubes that pass through a main body unit, the outer periphery of the main body unit is wrapped with a box-type wrapping layer, the main body unit comprises three parallel plate-like vertical beams, each of which is sandwiched between two adjacent vertical beams. A group of support components is provided, and the support component is a cross-shaped structure formed by splicing two hollow triangular supports. The three vertical beams are connected in series via two installation and positioning tubes, and the installation and positioning tubes pass through the lower triangular support and are attached to the two inner corners of the bottom of the lower triangular support. The two outer corners of the upper end of the upper triangular support serve as force-bearing parts, and the vertical beams, triangular supports, and box-type wrapping layers are made of composite materials.

[0005] As a further limitation of the present invention, the joints of the two triangular supports are respectively processed into an arc-shaped convex surface and an arc-shaped concave surface that match each other.

[0006] As a further limitation of the present invention, the arc-shaped concave surface is processed on the lower triangular support, and the arc-shaped convex surface is processed on the upper triangular support.

[0007] As a further limitation of the present invention, the side edges of the three vertical beams are arranged in the same plane, and an angle is formed between the side edge surface and the end surface of the vertical beam, and the angle is non-right angle.

[0008] As a further limitation of the present invention, the bottom of the vertical beam extends downward to form support feet, and the support feet are filled with foam.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts composite materials to make the main unit, which greatly reduces the weight of the overall structure. The overall structural design has higher strength and rigidity. This design has the characteristics of reliable structure, high safety and light overall weight, reduces energy consumption during operation and meets its high frequency requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention.

[0011] Figure 2 It is an exploded view of the internal structure of the present invention.

[0012] Figure 3 It is a top view of the present invention.

[0013] Figure 4 For along Figure 3 AA section view.

[0014] Figure 5 A state diagram is used for the present invention.

[0015] Figure 6 It is the force analysis diagram of the present invention.

[0016] Among them, 1 is a lower triangular support, 2 is a mounting positioning tube, 3 is a vertical beam, 4 is a wrapping layer, 5 is a foam filling, 6 is an upper triangular support, 7 is a turntable, 7a is a dovetail groove, 8 is a spacer, and 9 is a blade. DETAILED DESCRIPTION

[0017] The structure of the present invention is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-4A cross-shaped load-bearing carbon fiber composite spacer shown in the figure includes two installation positioning tubes 2 that penetrate the main unit, a box-shaped wrapping layer 4 is wrapped around the outer periphery of the main unit, and the main unit includes three parallel plate-shaped vertical beams 3, and a group of support components are sandwiched between each adjacent vertical beam 3. The support component is a cross-shaped structure formed by splicing a hollow upper triangular support 6 and a lower triangular support 1. The splicing parts of the upper triangular support 6 and the lower triangular support 1 are respectively processed into a mutually matching arc convex surface and an arc concave surface, the arc concave surface is processed on the lower triangular support 1, and the arc convex surface is processed on the upper triangular support 6, three vertical beams 3 are connected in series through two installation positioning tubes 2, the installation positioning tube 2 is set through the lower triangular support 1, and is close to the two inner corners of the bottom of the lower triangular support 1, and the two outer corners of the upper end of the upper triangular support 6 are used as force-bearing parts, the vertical beam 3, the upper triangular support 6, the lower triangular support 1, and the box-shaped wrapping layer 4 are made of composite materials, the side edges of the three vertical beams 3 are coplanar, and an angle is formed between the side surface and the end surface of the vertical beam 3, and the angle is non-right angle. The bottom of the vertical beam 3 extends downward to form a supporting foot, and the supporting feet are filled with foam filling 5, and the shape of the foam filling 5 and the supporting foot are both dovetail-shaped.

[0019] The present invention adopts composite materials to make the main unit and the wrapping layer 4, which reduces the weight of the overall structure, thereby reducing the overall weight of the turntable to which it is applied. The cross-shaped structure composed of two pairs of upper triangular supports 6 and the lower triangular support 1 cooperates with the three vertical beams 3 to provide sufficient support reaction force when it is subjected to pressure from both sides, thereby ensuring the overall strength. The design of the arc-shaped concave-convex surface makes it more convenient to assemble the upper triangular support 6 and the lower triangular support 1. The structure of the arc surface increases the contact area of ​​the contact point between the two, thereby enhancing the connection reliability between the two; the hollow triangular support can reduce the weight, thereby increasing its frequency, avoiding resonance between it and the turntable 7, and greatly improving the reliability and safety during use; the three vertical beams 3 cooperate with the two The triangular supports can reduce the assembly accuracy requirements and make assembly more convenient. If the number is reduced, the assembly accuracy will be poor. If the number is increased, the cost and weight will increase, which will have a greater impact on frequency and weight reduction. The design of installing the positioning tube 2 can enhance the overall structural strength while facilitating the installation of the spacer 8, and can cooperate with other components to achieve the fixation of the spacer. The non-right-angle structural design allows the two side surfaces of the spacer to cooperate well with the root side surfaces of the blade 9, so that the force received during the overall operation can be better transmitted to the spacer, and the two side surfaces of the spacer are approximately parallel to the torsion angle and chord of the blade 9, which makes installation convenient, simplifies the production process and saves costs. The non-right-angle structure of the spacer can change with the change of the torsion angle and chord of the blade 9.

[0020] The design of the dovetail-shaped support foot is conducive to the assembly of the spacer, and can be assembled in an insertion manner in conjunction with the dovetail groove, and after insertion, it can be fixed in conjunction with the installation positioning tube 2.

[0021] The present invention is described below in conjunction with its specific application environment.

[0022] like Figure 5 As shown, the spacer 8 is installed on the turntable 7, and the turntable 7 is also equipped with a paddle 9. The spacer 8 is installed between two adjacent paddles 9. The dovetail groove 7a used to install the spacer 8 is an inclined groove, and the fixation with the turntable 7 is achieved by installing a positioning tube.

[0023] like Figure 6 As shown, when the left side of the spacer is subjected to force, support reaction forces of the vertical beam and the oblique support will be generated, and during the rotation, it will receive the tension exerted by the side fibers and the tension provided by the pull rod, and will also receive the support reaction force provided by the turntable (wheel hub); when the right side of the spacer is subjected to force, support reaction forces of the vertical beam and the oblique support will be generated, and during the rotation, it will receive the tension exerted by the side fibers and the tension provided by the pull rod, and will also receive the support reaction force provided by the turntable (wheel hub). In summary, this spacer has high strength and rigidity, and can withstand large support reaction forces and bending moments during operation. This spacer design has the characteristics of reliable structure, high safety, and light overall weight, which reduces energy consumption during operation and has a higher natural frequency while reducing weight.

[0024] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A cross-type load-bearing carbon fiber composite spacer, characterized in that: It comprises two installation and positioning tubes which are arranged through the main body unit, and a box-shaped wrapping layer is wrapped around the outer circumference of the main body unit. The main body unit comprises three parallel plate-like vertical beams, and a group of support components are sandwiched between each adjacent vertical beam. The support component is a cross-shaped structure formed by splicing two hollow triangular supports. The three vertical beams are connected in series via two installation and positioning tubes, and the installation and positioning tubes pass through the lower triangular support and are abutted against the two inner corners of the bottom of the lower triangular support. The two outer corners of the upper end of the upper triangular support serve as force-bearing parts. The vertical beams, triangular supports and box-shaped wrapping layers are made of composite materials. The side edges of the three vertical beams are arranged in the same plane, and an angle is formed between the side edge and the end face of the vertical beam, and the angle is non-right angle. The bottom of the vertical beam extends downward to form a supporting foot, and the supporting feet are filled with foam.

2. A cross-type load-bearing carbon fiber composite spacer according to claim 1, characterized in that: The joints of the two triangular supports are respectively processed into an arc-shaped convex surface and an arc-shaped concave surface that match each other.

3. A cross-type load-bearing carbon fiber composite spacer according to claim 2, characterized in that: The arc-shaped concave surface is processed on the lower triangular support, and the arc-shaped convex surface is processed on the upper triangular support.

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