Composite inhaul cable with large deformability

Abstract

The invention discloses a composite inhaul cable with large deformation capacity. The composite inhaul cable comprises an inhaul cable body and an elastic body. A deformation cavity is formed in the inhaul cable body, and the wall body of the deformation cavity protrudes in the plane perpendicular to the stress direction of the inhaul cable body. The elastic body is arranged in the deformation cavity and connected with the inner wall of the deformation cavity, and when the inhaul cable body is stressed, the wall body of the deformation cavity is suitable for deforming and extruding the elastic body. Due to the existence of the deformation cavity and the elastic body, the inhaul cable body has good deformation capacity while maintaining the bearing capacity, the elastic body can be extruded to achieve deformation so as to improve the extension performance and the tensile property of the composite inhaul cable, the composite inhaul cable is prevented from being directly snapped, and the composite inhaul cable can be suitable for the working condition with the high requirement for the deformation capacity; and the requirement for the deformation capacity of the composite inhaul cable in the specific application field can be met.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a composite cable with large deformation capability. Background Art

[0002] In related technologies, cables generally use steel cable structures, but traditional steel cables have a large deadweight, low load-bearing efficiency, are prone to corrosion, and have high maintenance costs. Therefore, composite cables are commonly used to replace steel cables. Composite cables are widely used in bridges, roof reinforcement, foundation anchoring and other fields due to their excellent mechanical properties and corrosion resistance. In specific technical fields, complex working conditions have high requirements for the deformation capacity of cables. However, composite cables have the disadvantage of significant brittleness due to their material characteristics, and their deformation capacity is poor. When the force reaches a certain limit or is affected by other external forces, they are prone to sudden breakage and damage, which cannot meet the needs of actual applications. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the present invention is to provide a composite cable with large deformation capacity, which has good deformation capacity, can improve the tensile performance of the cable, and meet the application requirements of complex working conditions.

[0004] The present invention proposes a composite cable with large deformation ability, which includes a cable body and an elastomer; the cable body is formed with a deformation cavity, and the wall of the deformation cavity protrudes in a plane perpendicular to the force direction of the cable body; the elastomer is arranged in the deformation cavity and connected to the inner wall of the deformation cavity, and when the cable body is subjected to force, the wall of the deformation cavity is suitable for deforming and squeezing the elastomer.

[0005] According to the composite cable of the present application, due to the existence of the deformation cavity, the cable body has good deformation ability, and can improve the elongation and tensile properties of the composite cable through deformation to avoid being directly broken, and can be applied to complex working conditions such as unstable force; at the same time, the elastomer can delay the deformation process, increase the stability of the composite cable, and improve the load-bearing capacity of the composite cable during the deformation process.

[0006] According to some embodiments of the present application, the deformation cavity is configured as a through hole, the wall of the through hole protrudes in a plane perpendicular to the force direction of the cable body to form an arched section, and the arched section is suitable for deforming and squeezing the elastomer when the cable body is subjected to force.

[0007] According to some embodiments of the present application, the cable body includes a first body and a second body, the first body is formed with a first straight section, a first arched section and a second straight section, and the two ends of the first arched section are respectively connected to the first straight section and the second straight section; the second body is formed with a third straight section, a second arched section and a fourth straight section, and the two ends of the second arched section are respectively connected to the third straight section and the fourth straight section; wherein the first straight section is in contact with the third straight section, and the second straight section is in contact with the fourth straight section; a through hole is formed between the first arched section and the second arched section.

[0008] According to some embodiments of the present application, the cable body is constructed as a fiber-reinforced composite material.

[0009] According to some embodiments of the present application, a fiber-reinforced composite material member includes fibers, wherein the fibers are configured as a plurality of fibers extending in a stress direction of the cable body, and at least some of the fibers protrude perpendicular to the stress direction of the cable body to form an arched segment.

[0010] According to some embodiments of the present application, the elastic body is configured to extend in the force direction of the cable body, and the thickness of the elastic body gradually decreases in the extending direction.

[0011] According to some embodiments of the present application, the composite cable further includes a damping member, which is disposed inside the elastomer.

[0012] According to some embodiments of the present application, the damping member is constructed as a plurality of damping bodies arranged at intervals in the force-bearing direction of the cable body.

[0013] According to some embodiments of the present application, the deformation cavity is configured as a plurality of deformation cavities spaced apart in the force direction of the cable body.

[0014] According to some embodiments of the present application, the cable body also includes a restraining member, which is formed with a first pressing portion and a second pressing portion, and portions of the first body and the second body are arranged between the first pressing portion and the second pressing portion, and the first pressing portion and the second pressing portion are suitable for approaching each other and applying pressure to the first body and the second body to limit the relative movement between the first body and the second body.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of a composite cable structure according to some embodiments of the present application;

[0018] Figure 2 is a schematic diagram of the matching state of the first body and the second body according to some embodiments of the present application;

[0019] Figure 3 It is a schematic diagram of the structure of the cable body according to some embodiments of the present application.

[0020] Reference numerals:

[0021] cable body 10;

[0022] A first main body 11; a first straight section 111; a first arched section 112; a second straight section 113;

[0023] The second body 12; the third straight section 121; the second arched section 122; the fourth straight section 123;

[0024] Constraint 13; first pressing portion 131; second pressing portion 132; fastener 133;

[0025] Deformation cavity 20; elastic body 30. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] Reference below Figure 1-Figure 3 A composite cable with large deformation capability according to an embodiment of the present invention is described.

[0028] The present invention proposes a composite cable with large deformation ability, the composite cable includes a cable body 10 and an elastomer 30; the cable body 10 forms a deformation cavity 20, the wall of the deformation cavity 20 protrudes in a plane perpendicular to the force direction of the cable body 10; the elastomer 30 is arranged in the deformation cavity 20 and connected to the inner wall of the deformation cavity 20, and when the cable body 10 is subjected to force, the wall of the deformation cavity 20 is suitable for deforming and squeezing the elastomer 30.

[0029] According to the composite cable of the present application, the cable body 10 is formed with a deformable cavity 20, and the wall of the deformable cavity 20 protrudes in a plane perpendicular to the force direction of the cable body 10. When the cable body 10 is subjected to force, the wall of the deformable cavity 20 has a tendency to shrink into the deformable cavity 20 under the action of tension and to stretch along the force direction. Therefore, the cable body 10 has good deformation ability and can be greatly deformed under the action of tension. The elongation performance of the composite cable is improved through deformation, and then the tensile performance of the composite cable can be improved, thereby overcoming its brittle characteristics and avoiding being directly broken. At the same time, the elastomer 30 is arranged in the deformation cavity 20 and connected to the inner wall of the deformation cavity 20. When the wall of the deformation cavity 20 contracts inwardly, it will squeeze the elastomer 30, and the elastomer 30 will deform cooperatively. The elastic force of the elastomer 30 reacts on the wall of the deformation cavity 20, which can inhibit its inward contraction to a certain extent, slow down its deformation, avoid sudden changes in the cable body 10, increase the stability of the composite cable, and at the same time increase the load-bearing capacity of the composite cable during deformation.

[0030] It should be noted that in the related art, the deformation capacity of the composite cable generally only comes from the elastic deformation of the material itself. The elastic deformation capacity of the fiber-reinforced composite materials commonly used in the cable is relatively small. For example, the common carbon fiber reinforced composite materials have an elastic deformation capacity of only 1%-2%. However, the present application improves the structure of the composite cable and combines the coordinated deformation of the elastomer 30 to enable the entire composite cable to achieve a larger deformation amount. In some embodiments, the deformation amount can reach 5%-10%. Therefore, the composite cable of the present application has a large deformation capacity.

[0031] According to the composite cable of the present application, due to the presence of the deformation cavity 20, the cable body 10 has good deformation ability, can increase the elongation and tensile properties of the composite cable by deformation, avoid being directly broken, and can be applied to complex working conditions such as unstable force; at the same time, the elastic body 30 can delay the deformation process, increase the stability of the composite cable, and also improve the bearing capacity of the composite cable during deformation. The composite cable of the present application has good stability and reliability, and can meet the requirements of specific application fields for the deformation ability of the composite cable.

[0032] According to some embodiments of the present application, the deformation cavity 20 is configured as a through hole, and the wall of the through hole protrudes in a plane perpendicular to the force direction of the cable body 10 to form an arched section, and the arched section is suitable for deformation and extrusion of the elastic body 30 when the cable body 10 is subjected to force. In this embodiment, the deformation cavity 20 is configured as a through hole, and the wall of the deformation cavity 20 is configured as an arched section. When the composite cable is subjected to a certain tensile force, the arched section will have a tendency to straighten under the action of the tensile force, and the cable body 10 has a tendency to stretch along the force direction. Therefore, the cable body 10 can increase the elongation performance of the composite cable by elongating deformation, thereby improving the tensile resistance of the composite cable. The present application uses the structural form of a stretchable arched section and a through hole to give the composite cable space and ability to deform. When the arched section is deformed, it will not be constrained by its own structure in the circumferential direction around the force direction, which can make it easier to straighten along the force direction and have a higher deformation capacity.

[0033] According to some embodiments of the present application, the cable body 10 includes a first main body 11 and a second main body 12, the first main body 11 is formed with a first straight section 111, a first arched section 112 and a second straight section 113, and the two ends of the first arched section 112 are respectively connected to the first straight section 111 and the second straight section 113; the second main body 12 is formed with a third straight section 121, a second arched section 122 and a fourth straight section 123, and the two ends of the second arched section 122 are respectively connected to the third straight section 121 and the fourth straight section 123; wherein the first straight section 111 is in contact with the third straight section 121, and the second straight section 113 is in contact with the fourth straight section 123; a through hole is formed between the first arched section 112 and the second arched section 122.

[0034] It should be noted that, in order to simplify the description language, the straight section referred to in the present application refers to any one or more of the first straight section 111 , the second straight section 113 , the third straight section 121 and the fourth straight section 123 .

[0035] In this embodiment, if Figure 2As shown, the cable body 10 of this embodiment is composed of a first body 11 and a second body 12, the straight sections of the first body 11 and the second body 12 are fitted together, and the arched sections are matched to form a through hole. The cable body 10 of this embodiment is easy to process and form, and it is also easy to install the elastic body 30 in the through hole. Further, the first body 11 and the second body 12 are both constructed as a symmetrical structure about the middle line of the force-bearing ends on both sides, and the arched sections can be symmetrically deformed under the action of the forces at both ends; and the first body 11 and the second body 12 are symmetrical about the fitting surface between the two. When the cable body 10 is subjected to force, the first body 11 and the second body 12 can be deformed in coordination and keep the deformation synchronous, thereby ensuring that the first body 11 and the second body 12 are subjected to force uniformly, and ensuring the stability of the deformation process of the composite cable structure. In some embodiments, the first body 11 and the second body 12 can be bonded by resin so that the first body 11 and the second body 12 fit closely, thereby improving the connection strength and reliability of the cable body 10.

[0036] According to some embodiments of the present application, the cable body 10 is constructed as a fiber-reinforced composite material, which includes fibers, which are configured as a plurality of fibers extending in the force direction of the cable body 10, and at least part of the fibers protrude perpendicular to the force direction of the cable body 10 to form an arched section. In this embodiment, the cable body 10 is constructed as a fiber-reinforced composite material, which is a composite material formed by laminating, molding or pultruding a reinforcing fiber material, such as glass fiber, carbon fiber, aramid fiber, etc., with a matrix material. Specifically, the cable body 10 is a cable body with multiple fiber layers formed by curing a unidirectional fiber prepreg according to a prefabricated template. It should be noted that the unidirectional fiber prepreg is a composite material processed by coating, hot pressing, cooling and laminating a fiber tow and a resin. The extension direction of the fiber is consistent with the morphological extension direction of the cable body 10, and in the straight section, it extends along the force direction of the cable body 10, and in the arched section, it protrudes perpendicular to the force direction to extend along the arch. In the composite cable of this embodiment, the fibers in each finite unit of the cable body 10 extend along the force direction of the finite unit; when the cable body 10 is subjected to force, the tension is transmitted along the extension direction of the fibers. The composite cable of this embodiment has excellent mechanical properties and can maintain processing consistency through curing and forming.

[0037] It should be noted that the elastic body 30 in the present application can be constructed as an elastic material piece formed of a hard elastic material to adapt to the shape of the through hole, or can be constructed as an elastic structural piece with elastic properties such as a spring. The elastic body 30 at least partially deforms in a direction perpendicular to the force direction of the cable body 10.

[0038] According to some embodiments of the present application, the elastic body 30 is configured to extend in the force direction of the cable body 10, and the thickness of the elastic body 30 gradually decreases in the extension direction. In this embodiment, the thickness direction of the elastic body 30 refers to the direction perpendicular to the force direction of the cable body 10 and perpendicular to the extension direction of the through hole. Since the through hole is formed by a combination of arched segments, the through hole is gradually narrowed along the force directions on both sides. The elastic body 30 is configured to extend in the force direction of the cable body 10, and the thickness gradually decreases in the extension direction, so that the shape of the elastic body 30 is more similar to the shape of the through hole, and thus the reaction force of each finite unit of the elastic body 30 along the force direction of the composite cable is more matched with the pressure applied to the elastic body 30 by each finite unit of the arched segment. The elastic body 30 of this embodiment can make the elastic reaction force of the arched segment more uniform, and can improve the effect of the elastic body 30.

[0039] According to some embodiments of the present application, the composite cable further includes a damping member, which is disposed inside the elastic body 30. In this embodiment, when the cable body 10 vibrates under the action of external environmental forces, the damping member can reduce vibrations of the overall structure of the composite cable, thereby improving the stability and adaptability of the composite cable.

[0040] In addition, the combination of the elastic body 30 and the damping element of this embodiment can make the stiffness and deformation capacity of the elastic body 30 variable and controllable, and the overall performance of the composite cable can be adjusted by changing the elastic body 30 and the damping element.

[0041] According to some embodiments of the present application, the damping member is configured as a plurality of damping bodies spaced apart in the force direction of the cable body 10. In this embodiment, the damping member is configured as a plurality of damping bodies spaced apart in the force direction of the composite cable, each damping body can have a vibration reduction effect on the cable body, and can better play a damping role; and the distribution of the damping bodies affects the structural distribution of the elastic body 30, which can make the arched section more uniformly subjected to the elastic reaction force, thereby improving the stability of the composite cable.

[0042] According to some embodiments of the present application, the deformation cavity 20 is configured as a plurality of deformation cavities 20 arranged at intervals in the force direction of the cable body 10. In this embodiment, by providing a plurality of deformation cavities 20, the composite cable can have a plurality of deformation parts, and the deformation capabilities of the plurality of deformation parts are superimposed on each other, so that the composite cable has a greater deformation capability, and the tensile effect of the composite cable is better improved. Furthermore, by providing a plurality of deformation cavities 20, the deformation can be dispersed to each deformation part, reducing the deformation pressure of a single deformation part, and at the same time reducing the processing and installation pressure of a single deformation part, thereby improving the stability and reliability of the composite cable structure.

[0043] In some embodiments, a connecting portion is disposed between two adjacent deformation cavities 20 , and the connecting portion includes two straight sections that fit together, and the two straight sections are respectively disposed on the first body 11 and the second body 12 .

[0044] According to some embodiments of the present application, the cable body 10 also includes a restraining member 13, which is formed with a first pressing portion 131 and a second pressing portion 132, and portions of the first body 11 and the second body 12 are arranged between the first pressing portion 131 and the second pressing portion 132, and the first pressing portion 131 and the second pressing portion 132 are suitable for approaching each other and applying pressure to the first body 11 and the second body 12 to limit the relative movement between the first body 11 and the second body 12.

[0045] It should be noted that when the arched section of the cable body 10 is deformed by tension, a reaction force will be applied to the straight section connected to the arched section. The component of the reaction force perpendicular to the force direction of the composite cable will cause the connecting part of the straight section to have a tendency to move perpendicular to the force direction. If not restricted, the first body 11 and the second body 12 will be separated along the fitting surface, causing the structure of the cable body 10 to be destroyed. The adhesion of adhesives such as resins may not be sufficient to resist the reaction force and the stability of the structure cannot be guaranteed.

[0046] The restraint 13 of this embodiment fixes the first body 11 and the second body 12 between the two pressing parts, which can not only apply pre-pressure to the first body 11 and the second body 12 to make the first body 11 and the second body 12 fit tightly, but also apply resistance to the first body 11 and the second body 12 to prevent the first body 11 and the second body 12 from moving relative to each other in a plane perpendicular to the force direction of the composite cable, and prevent the cable body 10 from opening along the fitting surface. At least two restraints 13 of this embodiment are provided, one is suitable for limiting the relative movement between the first straight section 111 and the third straight section 121, and the other is suitable for limiting the relative movement between the second straight section 113 and the fourth straight section 123.

[0047] In an embodiment of a composite cable having multiple deformation cavities 20 , a plurality of restraints 13 should be provided correspondingly and arranged at the connecting portion between two adjacent deformation cavities 20 , thereby preventing the two straight sections of the connecting portion from arbitrarily moving relative to each other to affect the deformation effect of the cable body 10 .

[0048] In some embodiments, Figure 3As shown, the first pressing portion 131 and the second mortgage portion can be configured as clamps, and the two clamps are respectively arranged on both sides of the straight section integral structure of the first body 11 and the second body 12, and the two clamps are connected by a fastener 133 and the distance between the two clamps is adjusted to press the first body 11 and the second body 12. Further, the fastener 133 can be configured as a rivet or a combination of a bolt and a nut, and the clamp is provided with a fastening hole, which can be opened away from the first body 11 and the second body 12 to avoid damaging the structure of the cable body 10.

[0049] In some embodiments, one side of the first pressing portion 131 and the second pressing portion 132 is close to or coincides with a connecting line between the straight section and the arched section to prevent the straight section from being deformed under the influence of the arched section.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0052] In the description of the present invention, "plurality" means two or more.

[0053] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0054] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A composite cable with large deformation capability, characterized in that: include: A cable body, wherein the cable body is formed with a deformable cavity, and a wall of the deformable cavity protrudes in a plane perpendicular to a force direction of the cable body; An elastic body is arranged in the deformation cavity and connected to the inner wall of the deformation cavity. When the cable body is subjected to force, the wall of the deformation cavity is suitable for deforming and squeezing the elastic body.

2. The composite cable with large deformation capability according to claim 1, characterized in that: The deformation cavity is configured as a through hole, the wall of which protrudes in a plane perpendicular to the force direction of the cable body to form an arched section, and the arched section is suitable for deforming and squeezing the elastic body when the cable body is subjected to force.

3. The composite cable with large deformation capability according to claim 2, characterized in that: The cable body comprises: A first main body, wherein the first main body is formed with a first straight section, a first arched section, and a second straight section, and two ends of the first arched section are respectively connected to the first straight section and the second straight section; A second main body, wherein the second main body is formed with a third straight section, a second arched section and a fourth straight section, and two ends of the second arched section are respectively connected to the third straight section and the fourth straight section; wherein The first straight section fits with the third straight section, and the second straight section fits with the fourth straight section; the through hole is formed between the first arch section and the second arch section.

4. The composite cable with large deformation capability according to claim 3, characterized in that: The cable body is constructed as a fiber-reinforced composite material.

5. The composite cable with large deformation capability according to claim 4, characterized in that: The fiber reinforced composite material part comprises: The fibers are structured to be a plurality of fibers extending in the force-bearing direction of the cable body, and at least a portion of the fibers protrude perpendicularly to the force-bearing direction of the cable body to form the arched segment.

6. The composite cable with large deformation capability according to claim 2, characterized in that: The elastic body is configured to extend in the force-bearing direction of the cable body, and the thickness of the elastic body gradually decreases in the extending direction.

7. The composite cable with large deformation capability according to claim 2, characterized in that: Also includes: A damping member is arranged inside the elastic body.

8. The composite cable with large deformation capability according to claim 7, characterized in that: The damping member is constructed as a plurality of damping bodies arranged at intervals in the force-bearing direction of the cable body.

9. The composite cable with large deformation capability according to claim 1, characterized in that: The deformation cavity is configured as a plurality of cavities spaced apart in the force-bearing direction of the cable body.

10. The composite cable with large deformation capability according to claim 3, characterized in that: The cable body also includes: A restraining member is formed with a first pressing portion and a second pressing portion, parts of the first body and the second body are arranged between the first pressing portion and the second pressing portion, and the first pressing portion and the second pressing portion are suitable for being close to each other and applying pressure to the first body and the second body to limit the relative movement between the first body and the second body.

Images