Quickly-assembled carbon fiber plum coupling

Abstract

The utility model belongs to the technical field of plum coupling, and discloses a carbon fiber quick-assembly plum coupling, which is high in specific strength and specific modulus by adopting an input end and an output end which are made of carbon fiber materials and have the same structure, greatly reduces the overall mass of the coupling, further reduces the rotational inertia of a transmission system, and improves the transmission efficiency. The positive effects of improving the transmission precision and enhancing the stability and the response speed of the system are achieved; stable meshing connection is formed between the input end and the output end through the buffer cushion; the end cover is in fastening connection with the input end and the output end in an interference mode, a traditional screw fastening mode is replaced, the axial displacement of the input end and the output end can be effectively limited through the design of the end cover, and the fastening effect is greatly improved; not only is balance state damage possibly caused by screw fastening avoided, but also installation and maintenance processes are simplified, and time cost and maintenance complexity are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of plum blossom couplings, and particularly relates to a carbon fiber quick-install plum blossom coupling. Background Technology

[0002] Plum blossom couplings play an important role in mechanical transmission, ensuring the efficient and stable operation of mechanical equipment. They can be applied to various mechanical transmission systems and are particularly suitable for applications requiring frequent starts, reversal, medium to high speeds, medium torque, and high reliability.

[0003] However, traditional plum blossom couplings also have some shortcomings that significantly affect transmission performance. Specifically, these include: couplings are usually made of metal, and as the transmitted torque increases, the diameter and mass of the coupling also increase. This not only increases the rotational inertia of the transmission system, but also significantly affects the transmission accuracy, reducing the system's stability and response speed; furthermore, plum blossom couplings typically use screw fastening, which, when used under conditions requiring high static and dynamic balance, can disrupt the original balance, affecting the smooth operation of the system; in addition, the screw installation process is relatively cumbersome, increasing the complexity and time cost of maintenance.

[0004] It is evident that with the increase of transmitted torque, the mass of existing traditional plum blossom couplings also increases, leading to a decrease in system stability and response speed due to the large moment of inertia. Utility Model Content

[0005] This utility model provides a carbon fiber quick-connect plum blossom coupling to solve the technical problem that existing traditional plum blossom couplings, due to the increase in mass as the transmitted torque increases, result in a large moment of inertia that leads to a decrease in system stability and response speed.

[0006] To achieve the above objectives, the present invention adopts the following technical content:

[0007] A carbon fiber quick-connect plum blossom coupling includes an input end, a buffer pad, and an output end;

[0008] The input terminal and the output terminal have the same structure and are made of carbon fiber.

[0009] The buffer pad is disposed between the input end and the output end, and is engaged with the inner ends of the input end and the output end respectively;

[0010] The outer ends of the input terminal and the output terminal are respectively provided with end caps;

[0011] The end caps are all tightly connected to the outer ends of the input and output terminals using an interference fit.

[0012] Furthermore, the end cap adopts a stepped structure; one side of the outer wall of the end cap is engaged in the inner wall of the outer end of the input terminal and the output terminal.

[0013] Furthermore, a circumferential groove is provided on the other side of the end cap.

[0014] Furthermore,

[0015] The inner end of the input terminal has several protruding claws along the circumferential direction, and each protruding claw is spaced apart.

[0016] The buffer pad is provided with several plum blossom petals in the circumferential direction, and an interlocking gap is formed between each two adjacent plum blossom petals;

[0017] The input end claw and the output end claw are alternately inserted into multiple meshing gaps.

[0018] Furthermore, the input terminal and the output terminal are configured with hollow shafts.

[0019] Furthermore, the end cap has a through hole at its center, and the through hole is collinear with the axis of the input end and the output end; the through hole is used to clamp and axially position the input shaft and the output shaft.

[0020] Furthermore, the end cap is made of nylon.

[0021] Furthermore, the cushioning pad is made of polyurethane or rubber.

[0022] Furthermore, the input terminal and the output terminal have a hollow structure inside.

[0023] Furthermore, the circumferential outer edge of the buffer pad mates with the outer edge of the inner ends of the input and output terminals to form an integral cylindrical surface.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention provides a carbon fiber quick-connect plum blossom coupling. This coupling uses carbon fiber to create identical input and output ends, resulting in high specific strength and modulus, significantly reducing the overall weight of the coupling and thus lowering the rotational inertia of the transmission system. This positively impacts transmission accuracy, system stability, and response speed. A buffer pad forms a stable meshing connection between the input and output ends. Furthermore, end caps are interference-fitted to the input and output ends, replacing traditional screw fastening. The end cap design effectively limits axial displacement between the input and output ends, greatly improving the fastening effect. This not only avoids the potential imbalance caused by screw fastening but also simplifies installation and maintenance, reducing time costs and maintenance complexity. Using this coupling reduces rotational inertia while achieving stronger torque. The screwless connection allows for quick installation and disassembly, making it highly valuable for widespread application.

[0026] Preferably, in this invention, the end cap adopts a stepped structure design, which facilitates tight engagement with the outer ends of the input and output ends, improving the stability and sealing of the connection; at the same time, it also helps to prevent the end cap from loosening or falling off during operation, thereby ensuring the long-term stable operation of the coupling.

[0027] Preferably, in this invention, the design of the end cap groove makes the disassembly of the end cap more convenient and quick, providing operating space for disassembly. Quick disassembly can be achieved using only a screwdriver that works with it, reducing the complexity and time cost of maintenance; this is especially important for transmission systems that require frequent inspection and replacement of parts.

[0028] Preferably, in this invention, the convex claws at the input and output ends engage with the petal-shaped buffer pads in an alternating manner, forming a stable connection structure. This design not only enhances the load-bearing capacity of the coupling but also improves the smoothness and precision of the transmission. Simultaneously, the engagement of the convex claws and petal-shaped buffer pads helps to distribute and balance the transmitted torque, extending the service life of the coupling.

[0029] Preferably, in this invention, the input and output ends are made of hollow shafts, which further reduces the weight of the coupling and optimizes heat dissipation performance; this design enables the coupling to maintain a low temperature when operating at high speed, thereby improving the stability and reliability of the system.

[0030] Preferably, in this invention, the through hole at the center of the end cap is collinear with the axis of the input end and the output end, which not only facilitates the connection of the two output shafts, but also ensures the coaxiality of the coupling, improving the accuracy and stability of the transmission. This design also helps to reduce vibration and noise caused by coaxiality deviation. Furthermore, the end cap adopts an open slot structure design, which facilitates the clamping and axial positioning of the input and output shafts through the through hole after the end cap is installed, forming an integral whole with the input and output ends, achieving screwless connection.

[0031] Preferably, in this invention, the end cap is made of nylon, which is non-toxic, lightweight, has excellent mechanical strength, wear resistance and good corrosion resistance. This material choice not only reduces the weight of the coupling, but also improves its durability and reliability.

[0032] Preferably, in this invention, the buffer pad is made of polyurethane or rubber, which has good elasticity and buffering performance. This material choice allows the coupling to better absorb and disperse the transmitted vibration and impact, thereby protecting the transmission system from damage.

[0033] Preferably, in this invention, the input and output ends adopt a hollow structure, which further reduces the weight of the coupling and optimizes its internal structure and heat dissipation performance. This design makes the coupling lighter and more flexible while maintaining high strength and stability.

[0034] Preferably, in this invention, the outer circumferential edge of the buffer pad mates with the outer edge of the inner ends of the input and output ends to form an integral cylindrical surface. This design not only enhances the aesthetic appearance of the coupling but also improves the stability and sealing of its overall structure. At the same time, the formation of the integral cylindrical surface also helps to reduce vibration and noise caused by unevenness at the connection. Attached Figure Description

[0035] Figure 1 A schematic diagram of the structure of a carbon fiber quick-connect plum blossom coupling provided for an embodiment of this utility model;

[0036] Figure 2 An exploded view of a carbon fiber quick-connect type plum blossom coupling provided for an embodiment of this utility model;

[0037] Figure 3 A partial cross-sectional schematic diagram of carbon fiber layup for a carbon fiber quick-connect plum blossom coupling provided in this embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the end cover of a carbon fiber quick-connect plum blossom coupling provided in an embodiment of the present utility model.

[0039] Figure label:

[0040] 1. Input end; 2. Buffer pad; 3. Output end; 4. End cap; 5. Cap removal slot. Detailed Implementation

[0041] To make the technical problem solved by this utility model, the technical solution, and the beneficial effects clearer, the following specific embodiments provide a further detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0047] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Example

[0049] As described in the background section, traditional plum blossom couplings also have some shortcomings that significantly affect transmission performance. Specifically, these shortcomings include: the couplings are usually made of metal, and as the transmitted torque increases, the diameter and mass of the coupling also increase. This not only increases the rotational inertia of the transmission system, but also significantly affects the transmission accuracy, reducing the system's stability and response speed. Furthermore, plum blossom couplings typically use screw fastening, which, when used under conditions requiring high static and dynamic balance, can disrupt the original balance and affect the smooth operation of the system. In addition, the screw installation process is relatively cumbersome, increasing the complexity and time cost of maintenance.

[0050] To address the aforementioned issues, this invention provides a carbon fiber quick-connect plum blossom coupling. This plum blossom coupling significantly reduces the overall mass of the coupling, thereby lowering the rotational inertia of the transmission system, improving transmission accuracy, enhancing system stability and response speed. Furthermore, it avoids the potential disruption of balance caused by screw tightening, achieving quick connection and improving assembly / disassembly efficiency.

[0051] The carbon fiber quick-connect plum blossom coupling provided in this embodiment is designed based on the following principle: carbon fiber is a high-strength, high-modulus fiber with a carbon content of over 90%. Its high-temperature resistance is the highest among all chemical fibers. It is made from acrylic and viscose fibers through high-temperature oxidation and carbonization. It is an excellent material for manufacturing high-tech equipment such as aerospace equipment. Carbon fiber is mainly composed of carbon elements and possesses properties such as high-temperature resistance, friction resistance, thermal conductivity, and corrosion resistance. It has a fibrous shape, is soft, and can be processed into various fabrics. Due to its graphite microcrystalline structure preferentially oriented along the fiber axis, it has very high strength and modulus along the fiber axis. Carbon fiber has a low density, resulting in high specific strength and specific modulus. The main use of carbon fiber is as a reinforcing material in composites with resins, metals, ceramics, and carbon to manufacture advanced composite materials. Carbon fiber reinforced epoxy resin composites have the highest specific strength and specific modulus among existing engineering materials. Carbon fiber has a diameter of only 5 micrometers, equivalent to one-tenth to one-twelfth the thickness of a human hair, yet its strength is more than four times that of aluminum alloys.

[0052] According to the formula for moment of inertia J=mr², where m represents mass and r represents the perpendicular distance between the particle and the axis of rotation, mass and volume have a significant impact on moment of inertia. Using couplings made of carbon fiber results in very small coupling inertia in the transmission system, which is of profound significance for the static and dynamic balance of the transmission.

[0053] like Figure 1 As shown, this embodiment provides a carbon fiber quick-connect plum blossom coupling, including an input end 1, a buffer pad 2, an output end 3, and an end cover 4.

[0054] Specific combination Figure 2 As shown, input terminal 1 and output terminal 3 have the same structure and are both made of carbon fiber, a material that gives the coupling high strength and lightweight characteristics. Figure 3 As shown, after vacuum introduction of carbon fiber into input terminal 1 and output terminal 3, molding is performed, and the fiber direction is adjusted to the torque direction during layup.

[0055] The input terminal 1 and the output terminal 3 are designed with hollow shafts, meaning that the main load-bearing structure is hollow; this helps to further reduce weight and ensure better dynamic and static balance.

[0056] In this embodiment, the input terminal 1 and the output terminal 3 adopt a hollow structure, which helps to further reduce weight and optimize heat dissipation performance.

[0057] Both the inner ends of the input terminal 1 and the output terminal 3 are provided with several protruding claws along the circumferential direction. These protruding claws are spaced apart and are used to engage with the plum petals of the buffer pad 2.

[0058] The cushioning pad 2 is made of polyurethane or rubber, which has good elasticity and cushioning performance, i.e., excellent shock absorption performance.

[0059] The buffer pad 2 has several plum blossom petals arranged in the circumferential direction. There is an engagement gap between each two adjacent plum blossom petals. These engagement gaps are used to accommodate the protruding claws of the input end 1 and the output end 3, so as to realize the engagement connection between the buffer pad 2 and the input end 1 and the output end 3.

[0060] The protruding claws of the input end 1 and the output end 3 are interleaved and inserted into multiple meshing gaps of the buffer pad 2 to form a stable connection. When the three are connected as a whole, they form a complete cylindrical structure. The outer circumferential edge of the buffer pad 2 matches the outer edge of the inner end of the input end 1 and the output end 3 to form an integral cylindrical surface, which improves the aesthetics and overall performance of the coupling.

[0061] After the input terminal 1 and the output terminal 3 are engaged and connected with the buffer pad 2, the outer sides of the input terminal 1 and the output terminal 3 are fixed by the end cap 4 using an interference fit.

[0062] like Figure 4 As shown, the end cover 4 adopts a stepped structure, that is, it is designed with a stepped surface. One side of its outer wall is engaged with the inner wall of the outer end of the input end 1 and the output end 3 to achieve a stable connection. The end cover 4 is connected to the input end 1 and the output end 3 by means of an interference fit, and restricts the axial movement of the coupling to realize the transmission of kinetic energy.

[0063] The other side of the end cover 4 has a circumferential groove 5 for easy disassembly and maintenance. As can be seen, the design of the end cover 4 realizes the screwless connection of the coupling and achieves quick installation by using a small interference fit. At the same time, the disassembly groove 5 is used in conjunction with a screwdriver to achieve quick disassembly. This solves the problem that the screw installation process is relatively cumbersome and increases the complexity and time cost of maintenance.

[0064] In this embodiment, the end cap 4 is made of nylon material, which is lightweight, wear-resistant and corrosion-resistant.

[0065] In this embodiment, a through hole is provided in the center of the end cover 4, and the through hole is collinear with the axis of the input end 1 and the output end 3 to ensure the normal operation of the coupling.

[0066] For example Figure 4 As shown, in this embodiment, the end cover 4 adopts an open slot structure design. After the end cover 4 is installed, the gap of the open slot structure is reduced due to the interference fit between the end cover 4 and the input end 1 and the output end 3, thereby enabling the through hole (inner hole) to clamp and axially position the input shaft and the output shaft.

[0067] As can be seen, the input end 1, buffer pad 2, output end 3, and end cover 4 are all made of non-metallic materials; the Young's modulus and tensile strength of carbon fiber are much greater than those of metal, allowing the carbon fiber coupling to transmit greater torque for the same size; polyurethane has excellent buffering, shock absorption, and noise reduction effects; nylon has the characteristics of being non-toxic, lightweight, having excellent mechanical strength, wear resistance, and good corrosion resistance; thus, this carbon fiber quick-connect plum blossom coupling has good mechanical properties, which plays a positive role in improving the accuracy of transmission, enhancing the stability of the system, and improving the response speed.

[0068] In summary, this utility model provides a carbon fiber quick-connect type plum blossom coupling, which has the following advantages:

[0069] First, this carbon fiber quick-connect plum blossom coupling can transmit 60 times the torque of a traditional aluminum alloy plum blossom coupling.

[0070] Secondly, all components of this carbon fiber quick-connect plum blossom coupling are made of non-metallic structure. Due to the low density of non-metallic materials, the hollow structure reduces the mass by 80%, thereby reducing the rotational inertia of the transmission system, improving the transmission accuracy, and enhancing the system's stability and response speed.

[0071] Third, this carbon fiber quick-connect plum blossom coupling adopts a screwless connection method, and achieves quick installation and quick disassembly through the small interference fit of the end cover. This not only avoids the imbalance that may be caused by screw tightening, but also simplifies the installation and maintenance process, and reduces time costs and maintenance complexity.

[0072] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

1. A carbon fiber quick-connect type plum blossom coupling, characterized in that, It includes an input terminal (1), a buffer pad (2), and an output terminal (3); The input terminal (1) and the output terminal (3) have the same structure and are made of carbon fiber. The buffer pad (2) is disposed between the input end (1) and the output end (3), and is engaged with the inner ends of the input end (1) and the output end (3) respectively; End caps (4) are respectively provided on the outer ends of the input terminal (1) and the output terminal (3); The end caps (4) are all fastened to the outer ends of the input end (1) and the output end (3) by an interference fit. The end cap (4) adopts a stepped structure; one side of the outer wall of the end cap (4) is engaged in the inner wall of the outer end of the input end (1) and the output end (3); A circumferential groove (5) is provided on the other side of the end cap (4).

2. The carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The inner end of the input terminal (1) has several protruding claws along the circumferential direction, and each protruding claw is spaced apart. The buffer pad (2) is provided with several plum petals in the circumferential direction, and an interlocking gap is formed between each two adjacent plum petals; The protruding claws of the input end (1) and the output end (3) are interleaved and inserted into multiple meshing gaps.

3. A carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The input terminal (1) and the output terminal (3) are configured with hollow shafts.

4. A carbon fiber quick-connect type plum blossom coupling according to claim 3, characterized in that, The end cap (4) has a through hole in the center, and the through hole is collinear with the axis of the input end (1) and the output end (3); the through hole is used to clamp and axially position the input shaft and the output shaft.

5. A carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The end cap (4) is made of nylon.

6. A carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The cushioning pad (2) is made of polyurethane or rubber.

7. A carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The input terminal (1) and the output terminal (3) have a hollow structure inside.

8. A carbon fiber quick-connect type plum blossom coupling according to claim 1, characterized in that, The outer circumferential surface of the buffer pad (2) mates with the outer circumferential surface of the inner end of the input end (1) and the output end (3) to form an integral cylindrical surface.

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