Carbon fiber thermoplastic composite material wire clamping device pulling plate and preparation method thereof

Abstract

The invention relates to the field of electric power construction tools, and discloses a carbon fiber thermoplastic composite material wire clamping device pulling plate and a preparation method thereof, and the carbon fiber thermoplastic composite material wire clamping device pulling plate comprises a lining plate; the shaft sleeves are symmetrically arranged at the two ends of the lining plate; the pre-impregnated one-way belt is wound along the lining plate and the shaft sleeve according to a preset layer number; and the lantern ring is arranged on the shaft sleeve. According to the carbon fiber thermoplastic composite material wire clamping device pulling plate and the preparation method, the problem that in the prior art, a wire clamping device is large in mass is solved, and light weight of the wire clamping device is achieved.

Description

Technical Field

[0001] The present invention relates to the field of electric power construction tools, and more specifically, to a carbon fiber thermoplastic composite material wire clamp pull plate and a preparation method thereof. Background Art

[0002] At present, most of the wire clamps used in power transmission line projects adopt parallel movable structures, and the main structural parts are made of high-strength aluminum alloy (7A04), which has been proven to have good application effects in engineering practice. However, the existing wire clamps are large in size and weight, which is very inconvenient for construction workers to use during high-altitude operations.

[0003] With the development of society, many new composite materials have been successfully developed at home and abroad, which are high in strength and light in weight. By carrying out composite material process design work and realizing the composite material replacement of the main components of the wire clamp, the weight of the wire clamp can be greatly reduced, thereby reducing the labor intensity of personnel. In many industrial applications, such as aerospace, automobiles, sports equipment and other fields, the requirements for materials are getting higher and higher. Although traditional metal materials such as aluminum alloys have certain advantages, they can no longer meet the requirements of modern technology in some performance indicators. The development trend of wire clamps also stems from this. Contemporary scientific and technological development has put forward higher requirements for the strength, durability and lightweight of wire clamps. With the requirements of energy conservation, emission reduction and energy efficiency improvement, lightweighting has become a development trend in many industries.

[0004] Therefore, it is necessary to invent a high-strength, high-durability, lightweight wire clamp pull plate to replace the traditional aluminum alloy wire clamp pull plate. Summary of the invention

[0005] The purpose of the present invention is to provide a carbon fiber thermoplastic composite material wire clamp pull plate and a preparation method to solve the problem of large mass of the wire clamp in the prior art and achieve lightweight of the wire clamp.

[0006] In order to achieve the above purpose, the present invention adopts the following technical methods:

[0007] An embodiment of the present invention provides a carbon fiber thermoplastic composite material wire clamp pull plate and a preparation method thereof, wherein the carbon fiber thermoplastic composite material wire clamp pull plate comprises: a lining plate; a sleeve, wherein the sleeves are symmetrically arranged at both ends of the lining plate; a prepreg unidirectional tape, wherein the prepreg unidirectional tape is wound along the lining plate and the sleeve according to a preset number of layers; and a ring, wherein the ring is arranged on the sleeve.

[0008] According to any of the aforementioned embodiments of the present invention, the material used for the prepreg unidirectional tape is a carbon fiber thermoplastic composite material.

[0009] According to any of the aforementioned embodiments of the present invention, the carbon fiber thermoplastic composite material comprises carbon fiber, and the model of the carbon fiber is T300, T700, T800, or T1000.

[0010] According to any of the aforementioned embodiments of the present invention, the carbon fiber thermoplastic composite material further comprises a thermoplastic resin, and the thermoplastic resin is polyethylene, polypropylene, polyurethane, polyphenylene sulfide, polyamide, or polyoxymethylene.

[0011] According to any of the aforementioned embodiments of the present invention, the material of the lining plate is a continuous carbon fiber reinforced thermoplastic composite material, and the structure of the continuous carbon fiber reinforced thermoplastic composite material is a two-dimensional fabric laminate structure or a three-dimensional woven structure.

[0012] According to any of the aforementioned embodiments of the present invention, the single layer in the two-dimensional fabric laminate structure is at least one of plain weave, twill weave and satin weave.

[0013] According to any of the aforementioned embodiments of the present invention, the three-dimensional woven structure is three-dimensional four-directional, three-dimensional five-directional, three-dimensional six-directional, or three-dimensional seven-directional.

[0014] A method for preparing a carbon fiber thermoplastic composite material wire clamp pull plate, the method is used to prepare the carbon fiber thermoplastic composite material wire clamp pull plate described in any one of the above, the method comprising the following steps:

[0015] Cutting the prepreg unidirectional tape into a preset length and width;

[0016] Install the sleeve and liner into the winding tool;

[0017] The prepreg unidirectional tape is wound around the outer surface of the sleeve at a preset temperature, pressure and time to form a preform;

[0018] Curing and molding the preform in a preset molding die;

[0019] A collar is installed on the outer surface of the sleeve.

[0020] According to any of the above embodiments of the present invention, the molding temperature is 200-320°C, the molding time is 5-20min, the molding pressure is 2-20MPa, and the number of winding layers is 70-90. Common composite material curing processes include hand lay-up molding, hot pressing molding, autoclave molding and RTM molding.

[0021] According to any of the aforementioned embodiments of the present invention, the material used for the pre-impregnated unidirectional tape is a carbon fiber thermoplastic composite material, and the resin content in the carbon fiber thermoplastic composite material is 30-70%.

[0022] Compared with the prior art, the present invention has the following unexpected technical effects:

[0023] The material used for the pre-impregnated unidirectional tape in the embodiment of the present invention is a carbon fiber thermoplastic composite material. The carbon fiber thermoplastic composite material is light in weight, but its strength and rigidity are much higher than those of aluminum alloy. At the same weight, the carbon fiber thermoplastic composite material can withstand a greater load and has better durability. The carbon fiber thermoplastic composite material is inert to many chemical substances, has better corrosion resistance than aluminum alloy, and is suitable for more environments; the carbon fiber thermoplastic composite material can significantly reduce the weight of the wire holder and improve the overall performance of the wire holder; the material used for the lining plate is a continuous carbon fiber reinforced thermoplastic composite material, and the structure of the continuous carbon fiber reinforced thermoplastic composite material is a two-dimensional fabric laminated structure or a three-dimensional woven structure, which effectively guarantees the overall mechanical properties of the pull plate. After the pull plate is equipped with a collar, a higher tensile strength can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of a carbon fiber thermoplastic composite material wire clamp pull plate of the present invention;

[0026] Figure 2 The present invention is a flow chart of an embodiment of a method for preparing a carbon fiber thermoplastic composite material wire clamp pull plate of the present invention.

[0027] Description of reference numerals:

[0028] 100-liner; 200-sleeve; 300-prepreg unidirectional tape; 400-ring.

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The embodiment of the present invention provides a carbon fiber thermoplastic composite wire clamp pull plate, comprising a liner 100, a sleeve 200, a prepreg unidirectional tape 300 and a collar 400, wherein the sleeve 200 is symmetrically arranged at both ends of the liner 100; the prepreg unidirectional tape 300 is wound along the liner 100 and the sleeve 200 according to a preset number of layers; the collar 400 is arranged on the sleeve 200 to reinforce the end. The material used for the prepreg unidirectional tape 300 is a carbon fiber thermoplastic composite material.

[0034] Carbon fiber reinforced composites are different from other FRP composites that use traditional fibers, such as glass fiber or aromatic polyamide fiber. The excellent properties of carbon fiber reinforced composites include: light weight. Traditional glass fiber reinforced composites use continuous glass fibers with a content of 70% (weight glass / total weight) and a density of 0.065 pounds per cubic inch. High strength. Although carbon fiber reinforced composites are light in weight, they have higher strength and greater hardness per unit weight than glass fiber composites. This advantage is even more prominent when compared with metal materials. In comparison, aluminum of equal strength weighs about 1.5 times that of carbon fiber.

[0035] The material used for the pre-impregnated unidirectional tape 300 is carbon fiber thermoplastic composite material. The carbon fiber thermoplastic composite material is light in weight, but its strength and stiffness are much higher than aluminum alloy. At the same weight, the carbon fiber thermoplastic composite material can bear a greater load and has better durability. The carbon fiber thermoplastic composite material is inert to many chemicals, has better corrosion resistance than aluminum alloy, and is suitable for more environments; the carbon fiber thermoplastic composite material can significantly reduce the weight of the wire clamp and improve the overall performance of the wire clamp;

[0036] In some embodiments, the carbon fiber thermoplastic composite material includes carbon fiber, the carbon fiber model is T300, T700, T800, or T1000, and the carbon fiber can be any one of the models.

[0037] Specifically, carbon fiber is made by carbonizing organic fiber at high temperature in an inert atmosphere. It has high strength, high specific modulus, excellent thermal properties and chemical stability, as well as damping, vibration reduction and noise reduction, and is an excellent reinforcement material. Compared with traditional thermosetting composite materials, thermoplastic composite materials have a short molding cycle, low chemical component toxicity, high toughness, impact resistance and damage tolerance, long prepreg storage period, and strong mass production capacity. Thermoplastic composite materials with carbon fiber as reinforcement combine the performance advantages of carbon fiber and thermoplastic resin, and no chemical cross-linking occurs after molding. They can be melted and re-molded for the second time, which is convenient for material recovery and recycling.

[0038] In some embodiments, the carbon fiber thermoplastic composite material further comprises a thermoplastic resin, and the thermoplastic resin is polyethylene, polypropylene, polyurethane, polyphenylene sulfide, polyamide, or polyoxymethylene. The thermoplastic resin can be any one of them and is not limited to the resin types listed above.

[0039] The carbon fiber thermoplastic composite material of the embodiment of the present invention adopts a fiber blending method in which resin fibers are mixed with reinforcing fibers to form fiber bundles or fiber yarns. The resin fibers can be heated and melted to impregnate the reinforcing fibers. The advantages are good processability, good impregnation effect, and easy control of resin content. The composite material can be directly used for winding and molding to prepare products.

[0040] Specifically, polyphenylene sulfide has excellent mechanical properties, corrosion resistance, self-flammability, etc. The mechanical properties of carbon fiber reinforced polyphenylene sulfide composite materials are also affected by the carbon fiber content. Under a certain threshold, the greater the carbon fiber content, the stronger the ability to bear external loads. Experiments have shown that under temperature differences of up to 100°C, the ILSS of continuous carbon fiber reinforced PPS composite panels can still show good stability.

[0041] Specifically, the use of thermoplastic polyimide retains the high strength, high temperature resistance, chemical corrosion resistance, good dielectric properties, and radiation resistance of traditional thermosetting polyimide, and has outstanding advantages in toughness and hot processing molding. In addition to hot molding, extrusion or injection molding can also be used. The addition of carbon fiber can significantly improve the mechanical properties of thermoplastic polyimide. When the volume fraction of carbon fiber reaches 30%, the tensile and bending strength of the material is about 2-3 times that of pure resin. The carbon fiber reinforcement method also gives thermoplastic polyimide more outstanding heat resistance and mechanical properties, making it a higher level of wear resistance and corrosion resistance High-performance material.

[0042] Specifically, polyetheretherketone is selected because of its high rigidity, good dimensional stability, small linear expansion coefficient, ability to withstand great stress, and no significant elongation due to the extension of time. It also has low density and good processing performance, making it suitable for parts with high precision requirements. Polyetheretherketone itself is one of the thermoplastic resins with good heat resistance, and its long-term working temperature can even reach 250 degrees Celsius. In such a high temperature environment, its mechanical properties are basically unaffected. The use of carbon fiber as a reinforcement can further improve the performance of polyetheretherketone materials in terms of strength, rigidity and wear resistance, and also significantly extend the overall service life of the product. Experiments have shown that when the proportion of carbon fiber materials is 25%-30%, the wear resistance of composite materials based on polyetheretherketone is significantly improved.

[0043] In some embodiments, the material of the lining plate 100 is a continuous carbon fiber reinforced thermoplastic composite material, and the structure of the continuous carbon fiber reinforced thermoplastic composite material is a two-dimensional fabric laminate structure or a three-dimensional woven structure, which effectively ensures the overall mechanical properties of the pull plate.

[0044] In some embodiments, the single layer in the two-dimensional fabric laminate structure is at least one of plain weave, twill weave, and satin weave.

[0045] Specifically, the two-dimensional woven carbon fiber reinforced resin composite material is selected due to its high specific strength and specific stiffness, stable chemical properties and high temperature resistance, no fatigue and creep effects, vibration reduction and impact resistance, excellent forming performance, etc. The layer-by-layer draping of carbon fiber prepreg and the curing of matrix resin are the main production processes of two-dimensional woven carbon fiber reinforced resin composite materials. In the 2D woven carbon fiber prepreg draping process, technicians usually use auxiliary design software to calculate the unfolded configuration of the part layer, and then use the trial and error method to iterate and correct the configuration, and then use the automatic cutting machine to cut and cut the designed prepreg sheets, and finally manually drape the prepreg on the mold and further cure it to form a composite material.

[0046] In some embodiments, the three-dimensional braided structure is three-dimensional four-directional, three-dimensional five-directional, three-dimensional six-directional, or three-dimensional seven-directional.

[0047] Specifically, 3D weaving technology has the advantages of one-step molding of complex components, continuous change of cross-section, and designable yarn orientation. 3D woven composite materials first use 3D weaving technology to weave the reinforcing fibers into a three-dimensional integral fabric (preform), and then compound it with the matrix to make a composite product. 3D woven preforms can reinforce a variety of matrices such as resin, carbon, ceramic, and metal. The composite method varies depending on the matrix. The reinforcing fibers in the 3D woven composite material have an overall structure of spatial interweaving. Therefore, in addition to the advantages of high specific strength and high specific modulus of traditional composite materials, it also has better impact resistance, higher damage tolerance and energy absorption rate.

[0048] A method for preparing a carbon fiber thermoplastic composite material wire clamp pull plate, the method for preparing any of the above carbon fiber thermoplastic composite material wire clamp pull plates, the method comprising the following steps:

[0049] 1. Material Preparation

[0050] 1.1 Prepreg unidirectional tape preparation: Ensure that the prepreg unidirectional tape is kept under appropriate temperature and humidity conditions during storage to prevent the performance of the prepreg material from degrading. Check its validity period and whether it meets the design requirements.

[0051] 1.2 Equipment inspection: Check the status of the winding machine and curing mold to ensure that they are operating normally and are not damaged or contaminated.

[0052] 2. Assemble the winding tooling

[0053] 2.1 Cleaning tooling: Clean the winding tooling and liner to ensure there is no dust or foreign matter.

[0054] 2.2 Install the liner: Install the liner (100) correctly on the winding tooling to ensure that it is positioned accurately to avoid affecting the final molding effect.

[0055] 2.3 Fix the sleeve: Install the sleeve (200) correctly on the fixture and confirm its stability and alignment to ensure accuracy during the winding process.

[0056] 3. Winding process

[0057] 3.1 Preset parameters: According to the properties and design requirements of the prepreg unidirectional tape, set the temperature, pressure and time parameters of the winding machine. Ensure that these parameters meet the technical specifications of the prepreg material.

[0058] 3.2 Winding operation: The pre-impregnated unidirectional tape (300) is uniformly wound on the outer surface of the sleeve (200). The winding speed and tension are controlled to ensure the uniformity and adhesion of the winding layer.

[0059] 3.3 Monitoring process: Real-time monitoring of temperature, pressure and winding quality during the winding process, and timely adjustment of operating parameters to cope with any possible changes.

[0060] 4. Curing and molding

[0061] 4.1 Prepare the molding mold: Clean and preheat the mold in the preset molding mold to ensure that it works under the correct temperature conditions.

[0062] 4.2 Curing process: Place the preform into the molding mold and cure it according to the preset curing curve. Control the curing temperature and time to ensure that the material is fully cured and obtains the expected mechanical properties.

[0063] 4.3 Check the curing effect: After curing is completed, check the curing quality of the preform, including appearance, size and mechanical properties, to ensure that it meets the design requirements.

[0064] 5. Install the collar

[0065] 5.1 Prepare the collar: Ensure that the size and quality of the collar (400) meet the design requirements. Check that the surface of the collar is smooth and free of defects.

[0066] 5.2 Install the collar: Accurately install the collar (400) onto the outer surface of the sleeve (200). Use appropriate tools and methods to ensure that the collar and sleeve fit tightly to avoid gaps or looseness.

[0067] 5.3 Inspection and adjustment: Check the installation effect of the collar to ensure that its position and alignment meet the requirements. Make adjustments if necessary to ensure the overall quality of the product.

[0068] 6. Quality Control and Acceptance

[0069] 6.1 Quality inspection: Conduct comprehensive quality inspection on the final product, including dimensional measurement, appearance inspection, mechanical properties testing, etc.

[0070] 6.2 Documentation: Record the parameters and results of each step, including material batch number, winding conditions, curing parameters, etc., for easy traceability and analysis.

[0071] 6.3 Dealing with problems: If problems are found during the inspection process, they should be analyzed and dealt with in a timely manner, and the winding and curing processes should be repeated if necessary.

[0072] In some embodiments, the prepreg unidirectional tape 300 is wound around the outer surface of the sleeve 200 at a preset temperature, pressure and time to form a preform, wherein the molding temperature is 200-320°C, the molding time is 5-20min, the molding pressure is 2-20MPa, and the number of winding layers is 70-90 layers.

[0073] In some embodiments, the resin content in the carbon fiber thermoplastic composite material is 30-70%. The material of the liner 100 is a continuous carbon fiber reinforced thermoplastic composite material, in which the resin matrix content is controlled within the range of 30-70%.

[0074] The specific embodiments of the present invention are described in detail in conjunction with the above technical solutions.

[0075]

[0076]

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A carbon fiber thermoplastic composite material wire clamp pull plate, characterized in that: include: Liner (100); A shaft sleeve (200), wherein the shaft sleeve (200) is symmetrically arranged at two ends of the liner (100); A pre-impregnated unidirectional tape (300), wherein the pre-impregnated unidirectional tape (300) is wound along the liner (100) and the shaft sleeve (200) according to a preset number of layers; A sleeve ring (400) is sleeved on the outer peripheral surface of the shaft sleeve (200) and is located on the side of the liner (100).

2. A carbon fiber thermoplastic composite material wire clamp pull plate as claimed in claim 1, characterized in that: The material of the pre-impregnated unidirectional tape (300) is a carbon fiber thermoplastic composite material.

3. A carbon fiber thermoplastic composite material wire clamp pull plate as claimed in claim 2, characterized in that: The carbon fiber thermoplastic composite material includes carbon fiber, and the model of the carbon fiber is any one of T300, T700, T800 or T1000.

4. A carbon fiber thermoplastic composite material wire clamp pull plate as claimed in claim 3, characterized in that: The carbon fiber thermoplastic composite material also includes a thermoplastic resin. The carbon fiber and the thermoplastic resin are in a woven structure. The thermoplastic resin is any one of polyethylene, polypropylene, polyurethane, polyphenylene sulfide, polyamide or polyoxymethylene.

5. The carbon fiber thermoplastic composite material wire clamp pull plate according to claim 1, characterized in that: The material of the lining plate (100) is a continuous carbon fiber reinforced thermoplastic composite material, and the structure of the continuous carbon fiber reinforced thermoplastic composite material is a two-dimensional fabric laminate structure or a three-dimensional woven structure.

6. A carbon fiber thermoplastic composite material wire clamp pull plate as claimed in claim 5, characterized in that: The single layer in the two-dimensional fabric laminate structure is at least one of plain weave, twill weave and satin weave.

7. A carbon fiber thermoplastic composite material wire clamp pull plate as claimed in claim 5, characterized in that: The three-dimensional woven structure is any one of three-dimensional four-directional, three-dimensional five-directional, three-dimensional six-directional or three-dimensional seven-directional.

8. A method for preparing a carbon fiber thermoplastic composite material wire clamp pull plate, characterized in that: The preparation method is used to prepare the carbon fiber thermoplastic composite material wire clamp pull plate according to any one of claims 1 to 7, and the preparation method comprises the following steps: Cutting the prepreg unidirectional tape (300) into a preset length and width; Installing the shaft sleeve (200) and the liner (100) into a winding tool; Winding a pre-impregnated unidirectional tape (300) on the outer surface of a shaft sleeve (200) at a preset temperature, pressure and time to form a preform; Curing and molding the preform in a preset molding die; A collar (400) is installed on the outer surface of the shaft sleeve (200).

9. The method for preparing the carbon fiber thermoplastic composite material wire clamp pull plate according to claim 8, characterized in that: The prepreg unidirectional tape (300) is wound around the outer surface of the shaft sleeve (200) at a preset temperature, pressure and time to form a preform, wherein the molding temperature is 200-320°C, the molding time is 5-20 minutes, the molding pressure is 2-20MPa, and the number of winding layers is 70-90 layers.

10. The method for preparing the carbon fiber thermoplastic composite material wire clamp pull plate according to claim 9, characterized in that: The material of the pre-impregnated unidirectional tape (300) is a carbon fiber thermoplastic composite material, and the volume fraction of the resin in the carbon fiber thermoplastic composite material is 30-70%.

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