Self-locking armored structure for rare earth high-iron aluminum alloy cable

Abstract

The utility model discloses a kind of self-locking armoring structures for rare earth high iron aluminum alloy cable, it includes armoring belt, elastic locking strip, limit ring and connecting sheet.Elastic locking strip is fixed by wave shape design and clamping groove, provides radial pressure to prevent slippage;Limit ring is engaged by antiskid tooth and texture slot, and applies circumferential restraint force;Armoring belt end portion is equipped with flange and groove, realize quick butt joint and automatic alignment;Metal particle coating enhances friction, and macromolecule polymer ensures close fit.The application can effectively solve the problem that the armoring layer is easy to loosen and shift, and improve the safety and reliability of the cable in complex environment.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, and in particular to a self-locking armor structure for rare earth high-speed rail aluminum alloy cables. Background Technology

[0002] Currently, rare-earth high-speed rail aluminum alloy cables are widely used in the power transmission field due to their excellent conductivity and mechanical properties. However, the design of their external protective structure is crucial to their service life and safety. Traditional cable armor often uses steel or aluminum tape wrapping, which provides a certain degree of pressure and impact resistance, but is prone to loosening or displacement in complex environments. Especially during construction, the lack of self-locking function in the armor layer necessitates additional fixing devices to ensure stability, increasing construction difficulty and potentially leading to insufficient fit between the armor layer and the cable body. Furthermore, over long-term operation, traditional armor structures may gradually lose their original protective effect due to vibration or external forces, thus affecting the overall performance and reliability of the cable. Utility Model Content

[0003] The purpose of this utility model is to provide a self-locking armor structure for rare earth high-speed rail aluminum alloy cables, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a self-locking armor structure for rare earth high-speed rail aluminum alloy cables. The self-locking armor structure mainly consists of: an armor belt, an elastic locking strip disposed on the inner side of the armor belt, a limiting ring nested on the outer side of the armor belt, and connecting pieces disposed at both ends of the armor belt. The armor belt is the main structure, the elastic locking strip and the limiting ring work together to improve the stability of the armor belt, and the connecting pieces are used to close the ends of the armor belt and form a continuous protective layer.

[0005] A further technical solution of this utility model is: the elastic locking strip is fixedly connected to the inner side of the armor belt through a slot, the slot is evenly distributed along the length of the armor belt, the cross section of the elastic locking strip is wavy, its protruding part is in contact with the cable body, and its concave part is in contact with the inner wall of the armor belt, thereby forming radial pressure during the winding of the armor belt to prevent the armor belt from axially slipping.

[0006] A further technical solution of this utility model is: the limiting ring includes a ring body with a notch and anti-slip teeth disposed on the inner side of the ring body. The anti-slip teeth mesh with the texture of the outer surface of the armor belt. The limiting ring is sleeved on the outer side of the armor belt by interference fit. An adjusting bolt is provided at its notch. After the adjusting bolt is tightened, the limiting ring is tightened, thereby applying a circumferential constraint force to the armor belt.

[0007] A further technical solution of this utility model is: the outer surface of the armor belt is provided with a textured groove extending along the length direction, the depth of the textured groove gradually increases from one end of the armor belt to the other end, and a metal particle coating is embedded at the bottom of the textured groove. The metal particle coating is used to enhance the friction between the armor belts and prevent the armor belts from sliding relative to each other when subjected to external force.

[0008] A further technical solution of this utility model is: the connecting piece includes two symmetrically arranged semi-circular arc plates and a locking device at both ends of the semi-circular arc plates. The inner side of the semi-circular arc plates is provided with a groove that matches the shape of the end of the armor belt. The locking device includes a spring pin and a positioning hole. After the spring pin is inserted into the positioning hole, the two semi-circular arc plates are tightly connected, thereby achieving the closure of the end of the armor belt.

[0009] A further technical solution of this utility model is: the two ends of the armor belt are respectively provided with a flange and a groove, the width of the flange is equal to the width of the groove, and the flange and the groove are connected by a slope. When two adjacent armor belt segments are joined, the flange is inserted into the groove and automatically aligned by the slope, thereby ensuring the overall continuity of the armor belt.

[0010] A further technical solution of this utility model is: the elastic locking strip is made of a high molecular polymer, which has moderate hardness and good resilience. The wavy structure of the elastic locking strip can automatically adjust its shape according to the diameter change of the cable body to ensure a tight fit between the armor tape and the cable body.

[0011] A further technical solution of this utility model is: the ring body of the limiting ring is made of high-strength aluminum alloy material, and its outer surface is anodized to improve corrosion resistance. The tip angle of the anti-slip teeth is 45°, and the tips of the teeth and the textured grooves on the outer surface of the armor belt interlock to form a stable mechanical connection.

[0012] The beneficial effects of this utility model are as follows: This utility model's self-locking armor structure for rare-earth high-speed rail aluminum alloy cables effectively solves the problems of loosening and displacement inherent in traditional armor structures through the synergistic effect of elastic locking strips, limiting rings, and textured grooves. The wavy design of the elastic locking strip generates radial pressure during the armor tape winding process, ensuring a tight fit between the armor tape and the cable body. The limiting ring, through the meshing of anti-slip teeth and textured grooves, applies circumferential restraint to the armor tape, preventing axial slippage during construction or operation. The flange and groove design at the end of the armor tape enables rapid docking and automatic alignment of adjacent armor tape sections, improving construction efficiency. Furthermore, the use of metal particle coating and polymer further enhances the vibration resistance and durability of the armor structure, thereby significantly improving the safety and reliability of rare-earth high-speed rail aluminum alloy cables in complex environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the assembly relationship of the armor belt, the elastic locking strip, the limiting ring and the connecting piece. The armor belt is wrapped around the outside of the cable body, the elastic locking strip is embedded inside the armor belt, the limiting ring is sleeved on the outside of the armor belt, and the connecting piece closes the end of the armor belt.

[0014] Figure 2 This is a partially enlarged view of the end-joining structure of the armor belt, showing in detail the fit between the flange and the groove. The flange is guided into the groove by an inclined surface to achieve automatic alignment, ensuring the overall continuity of the armor belt.

[0015] Figure 3 This is a schematic diagram of the limiting ring, showing the anti-slip teeth on the ring body and the adjusting bolt at the notch. The anti-slip teeth mesh with the textured groove on the outer surface of the armor belt, and the adjusting bolt is used to tighten the limiting ring.

[0016] The attached diagram is labeled as follows: 1. Armor belt; 2. Elastic locking strip; 3. Limiting ring; 4. Connecting piece; 5. Flange; 6. Groove; 7. Anti-slip teeth; 8. Adjusting bolt; 9. Textured groove; 10. Metal particle coating. Detailed Implementation

[0017] This utility model discloses a self-locking armored structure for rare earth high-speed rail aluminum alloy cables, the specific implementation of which is described in conjunction with the appendix. Figure 1 To be continued Figure 3 Please provide a detailed explanation. For example... Figure 1 As shown, this self-locking armor structure mainly consists of an armor belt 1, an elastic locking strip 2, a limiting ring 3, and a connecting piece 4. The armor belt 1 is the main structure, with an elastic locking strip 2 on its inner side and a limiting ring 3 on its outer side. Both ends are closed by the connecting piece 4 to form a continuous protective layer. The connection relationship, positional relationship, and mutual cooperation relationship between the components are described below.

[0018] The armor strip 1 is a flexible metal strip made of rare-earth high-speed iron aluminum alloy, possessing high strength and excellent corrosion resistance. The outer surface of the armor strip 1 has textured grooves 9 along its length, with the depth of the grooves gradually increasing from one end to the other, creating a gradual distribution of friction during the winding process. A metal particle coating 10, composed of hard metal particles, is embedded at the bottom of the textured grooves 9, significantly enhancing the friction between the armor strips 1 and preventing relative slippage under external force. Both ends of the armor strip 1 have flanges 5 and grooves 6, with the width of the flanges 5 equal to the width of the grooves 6, connected by a bevel. When adjacent armor strip segments 1 are joined, the flanges 5 are guided into the grooves 6 via the bevel for automatic alignment, ensuring the overall continuity of the armor strip 1. Figure 2As shown, the fit between flange 5 and groove 6 not only simplifies the construction operation, but also improves the accuracy of the mating of armor belt 1.

[0019] The elastic locking strip 2 is fixedly connected to the inner side of the armored tape 1 via slots evenly distributed along the length of the armored tape 1. The cross-section of the elastic locking strip 2 is wavy. The elastic locking strip 2 is made of a high-molecular polymer, with moderate hardness and good resilience. The wavy structure of the elastic locking strip 2 automatically adjusts its shape according to changes in the diameter of the cable body, ensuring a tight fit between the armored tape 1 and the cable body. The raised portion of the wavy elastic locking strip 2 contacts the cable body, while the recessed portion fits against the inner wall of the armored tape 1, thus creating radial pressure during the winding process of the armored tape 1. This radial pressure effectively prevents axial slippage of the armored tape 1 and enhances the stability between the armored tape 1 and the cable body.

[0020] The limiting ring 3 includes a ring with a notch and anti-slip teeth 7 disposed on the inner side of the ring, such as... Figure 3 As shown. The ring of the limiting ring 3 is made of high-strength aluminum alloy, and its outer surface is anodized to improve corrosion resistance. The anti-slip teeth 7 have a tooth tip angle of 45°, and the tooth tips mesh with the textured grooves 9 on the outer surface of the armor belt 1 to form a stable mechanical connection. The limiting ring 3 is fitted onto the outside of the armor belt 1 with an interference fit, and an adjusting bolt 8 is provided at its notch. Tightening the adjusting bolt 8 tightens the limiting ring 3, thereby applying a circumferential restraint force to the armor belt 1. The function of the limiting ring 3 is to prevent the armor belt 1 from loosening or shifting during construction or operation, and at the same time, the meshing action of the anti-slip teeth 7 and the textured grooves 9 further improves the stability of the armor belt 1.

[0021] The connecting piece 4 is used to close the end of the armor belt 1. It includes two symmetrically arranged semi-circular arc plates and locking devices at both ends of the semi-circular arc plates. The inner side of the semi-circular arc plates has grooves that match the shape of the end of the armor belt 1, ensuring that the connecting piece 4 can fit tightly against the end of the armor belt 1. The locking device includes a spring pin and a positioning hole. After the spring pin is inserted into the positioning hole, the two semi-circular arc plates are tightly connected, thereby closing the end of the armor belt 1. The design of the connecting piece 4 not only closes the end of the armor belt 1, but also enhances the overall continuity of the armor belt 1, preventing the end from loosening due to external forces.

[0022] In practical applications, the installation process of the self-locking armored structure of this utility model is as follows: First, the armor strip 1 is wrapped around the outside of the cable body, ensuring that the wavy structure of the elastic locking strip 2 is tightly fitted to the cable body. During the wrapping process, the protruding part of the elastic locking strip 2 contacts the cable body to generate radial pressure, and the concave part fits against the inner wall of the armor strip 1, thereby initially fixing the position of the armor strip 1. Then, the limiting ring 3 is fitted onto the outside of the armor strip 1, and the position of the limiting ring 3 is adjusted so that its anti-slip teeth 7 engage with the textured grooves 9 on the outer surface of the armor strip 1. By tightening the adjusting bolt 8, the limiting ring 3 is tightened, thereby applying a circumferential constraint force to the armor strip 1, further enhancing the stability of the armor strip 1. Finally, the end of the armor strip 1 is closed using the connecting piece 4, and the two semi-circular arc plates are symmetrically fastened and fixed by the locking device, completing the overall assembly of the armor strip 1.

[0023] This invention's self-locking armor structure solves the problems of loosening and displacement inherent in traditional armor structures through the synergistic effect of the elastic locking strip 2, the limiting ring 3, and the textured groove 9. The wavy design of the elastic locking strip 2 generates radial pressure during the winding of the armor strip 1, ensuring a tight fit between the armor strip 1 and the cable body. The limiting ring 3, through the meshing of the anti-slip teeth 7 and the textured groove 9, applies circumferential restraint to the armor strip 1, preventing axial slippage during construction or operation. The flange 5 and groove 6 at the end of the armor strip 1 enable rapid docking and automatic alignment of adjacent armor strip sections, improving construction efficiency. Furthermore, the use of the metal particle coating 10 and the polymer further enhances the armor structure's vibration resistance and durability, significantly improving the safety and reliability of rare-earth high-speed rail aluminum alloy cables in complex environments.

[0024] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principles of this utility model are further explained below in conjunction with specific application scenarios.

[0025] First, when wrapping the armor tape 1 around the outside of the cable body at the construction site, it is necessary to ensure that the wavy structure of the elastic locking strip 2 fits tightly against the cable body. The elastic locking strip 2, through its wavy cross-section design, can automatically adjust its shape according to changes in the diameter of the cable body. Its raised portion contacts the surface of the cable body, while its recessed portion fits against the inner wall of the armor tape 1, thus creating radial pressure during the wrapping process. This radial pressure originates from the rebound force generated by the elastic locking strip 2, made of polymer material, after being compressed. This force acts between the armor tape 1 and the cable body, effectively preventing axial slippage of the armor tape 1 and enhancing the stability between them. This design solves the problem of traditional armored structures requiring additional fixing devices due to the lack of self-locking functionality.

[0026] Subsequently, the limiting ring 3 is fitted onto the outside of the armored belt 1, and its position is adjusted so that the anti-slip teeth 7 on the inner side of the limiting ring 3 engage with the textured grooves 9 on the outer surface of the armored belt 1. The tip angle of the anti-slip teeth 7 is 45°, designed to enhance the mechanical engagement force with the textured grooves 9. When the adjusting bolt 8 is tightened, the annular body of the limiting ring 3 applies a circumferential restraining force to the armored belt 1 through the tightening action at the notch. This restraining force not only prevents the armored belt 1 from loosening or shifting during construction or operation, but also further enhances the overall stability of the armored belt 1 through the engagement of the anti-slip teeth 7 and the textured grooves 9. In addition, the annular body of the limiting ring 3 is made of high-strength aluminum alloy and undergoes anodizing treatment to improve its corrosion resistance and ensure long-term performance in complex environments.

[0027] Next, the connecting piece 4 is used to seal the end of the armored tape 1. The connecting piece 4 includes two symmetrically arranged semi-circular arc plates, each with an inner groove matching the shape of the end of the armored tape 1, ensuring a tight fit between the connecting piece 4 and the end of the armored tape 1. The two semi-circular arc plates are fixed by a locking device, where a spring pin is inserted into a positioning hole to achieve a tight connection. This design not only seals the end of the armored tape 1 but also enhances its overall continuity, preventing the end from loosening due to external forces. Through this operation, the armored tape 1 forms a complete protective layer, thereby improving the overall protective performance of the cable.

[0028] In practical applications, the flanges 5 and grooves 6 at both ends of the armor belt 1 further improve construction efficiency. When two adjacent armor belt sections 1 are joined, the flanges 5 are guided into the grooves 6 by the bevel, achieving automatic alignment. This joining method simplifies construction operations while ensuring the overall continuity of the armor belt 1. Furthermore, the textured grooves 9 on the outer surface of the armor belt 1 gradually increase in depth along its length, and the metal particle coating 10 embedded at its bottom is composed of hard metal particles, which significantly enhances friction when the armor belt 1 is subjected to external forces, preventing relative slippage. This design, through the gradual distribution of friction and the embedding of hard particles, effectively improves the vibration resistance and durability of the armor belt 1 in complex environments.

[0029] In summary, the self-locking armor structure of this utility model achieves a tight fit between the armor strip 1 and the cable body through the synergistic action of the elastic locking strip 2, the limiting ring 3, and the textured groove 9, and prevents axial slippage of the armor strip 1 through the circumferential constraint force of the limiting ring 3. The quick-connect design at the end of the armor strip 1 and the application of the metal particle coating 10 further enhance the stability and reliability of the armor structure, thereby significantly improving the safety and service life of rare earth high-speed rail aluminum alloy cables in complex environments. The above steps, combined with specific application scenarios, elaborate in detail the technical implementation principle and operating mechanism of this utility model.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking armored structure for rare earth high-speed rail aluminum alloy cables, characterized in that, The self-locking armor structure mainly consists of an armor belt (1), an elastic locking strip (2) disposed inside the armor belt (1), a limiting ring (3) nested on the outside of the armor belt (1), and connecting pieces (4) disposed at both ends of the armor belt (1). The elastic locking strip (2) is fixedly connected to the inside of the armor belt (1) through a slot, the limiting ring (3) is sleeved on the outside of the armor belt (1) through an interference fit, and the connecting piece (4) is used to close the end of the armor belt (1).

2. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 1, characterized in that: The cross-section of the elastic locking strip (2) is wavy, with its protruding part in contact with the cable body and its recessed part fitting against the inner wall of the armor strip (1).

3. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 1, characterized in that: The limiting ring (3) includes a ring body with a notch and anti-slip teeth (7) disposed inside the ring body. The anti-slip teeth (7) mesh with the textured groove (9) on the outer surface of the armor belt (1). An adjusting bolt (8) is provided at the notch of the limiting ring (3).

4. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 1, characterized in that: The outer surface of the armor belt (1) is provided with a textured groove (9) extending along the length direction. The depth of the textured groove (9) gradually increases from one end of the armor belt (1) to the other end. A metal particle coating (10) is embedded at the bottom of the textured groove (9).

5. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 1, characterized in that: The connecting piece (4) includes two symmetrically arranged semi-circular arc plates and a locking device at both ends of the semi-circular arc plates. The inner side of the semi-circular arc plates is provided with a groove that matches the shape of the end of the armor belt (1). The locking device includes a spring pin and a positioning hole.

6. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 1, characterized in that: The armor belt (1) has a flange (5) and a groove (6) at both ends, respectively. The width of the flange (5) is equal to the width of the groove (6), and the flange (5) and the groove (6) are connected by a slope.

7. The self-locking armored structure for rare earth high-speed rail aluminum alloy cables according to claim 3, characterized in that: The ring of the limiting ring (3) is made of high-strength aluminum alloy material, and its outer surface is anodized. The tip angle of the anti-slip tooth (7) is 45°.

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