Aluminum alloy cable and process for manufacturing the same

Abstract

The application relates to an aluminum alloy cable which comprises cable cores, first clamping strips for connecting the cable cores, sheaths for protecting the cable cores, limiting pieces for connecting two groups of adjacent sheaths and second limiting rods matched with the limiting pieces; first grooves are formed in the inner sides of the sheaths; second grooves corresponding to the side walls of the cable cores are formed in the side walls of the first grooves; the number of the second grooves corresponds to the number of the cable cores; the first clamping strips are attached to the side walls of the cable cores and separate each group of cable cores to form a cable core group; third grooves and fourth grooves are respectively formed in the upper and lower surfaces of the sheaths; the limiting pieces are located in the third grooves; the second limiting rods are screwed into the fourth grooves; when two groups of adjacent limiting pieces correspond to the second limiting rod, the positions of the two groups of adjacent sheaths are limited. The assembly needs to limit the positions of two groups of sheaths through limiting columns and limiting blocks, which results in time-consuming and laborious assembly and the limiting columns and limiting blocks are covered by fillers in the later period, so that the sheaths are difficult to be disassembled and maintained.

Description

Technical Field

[0001] This invention relates to the field of cables, and more particularly to an aluminum alloy cable and its manufacturing process. Background Technology

[0002] In existing technology, cables are made of one or more mutually insulated conductors and an outer insulating protective layer, and are wires that transmit electricity or information from one place to another. Cables are generally erected at high altitudes or buried underground for long-distance high-voltage power transmission. Typically, each cable is responsible for the power transmission of multiple lines, which not only has high transmission efficiency but also low cost and good stability.

[0003] Cables erected at high altitudes are prone to damage due to oxidation of their insulation layer caused by prolonged contact with air. When exposed to severe weather or other external forces, these cables are susceptible to breakage, leading to internal circuit disruptions, economic losses, and safety issues. Cables buried underground are more vulnerable to damage during construction or illegal activities. In particular, excavators working without prior knowledge of the underground cable distribution can easily sever cables, resulting in power system outages.

[0004] Currently, most aluminum alloy cables used for shear resistance have a metal sheath added to the outside of the cable (similar to the metal sleeve outside the explosion-proof hose in the bathroom). This can resist some of the damage from external forces. However, because the outer wall of the metal sheath is relatively thin, it will be damaged and deformed when subjected to severe impact, and it is difficult to spring back. As a result, the sheath squeezes the inner cable core, causing damage to the cable core.

[0005] Once a cable is damaged, it will not only cause huge economic losses and great inconvenience to people's lives, but also be difficult to repair and take a long time. Existing ordinary cables have poor shear resistance and are easily broken by external forces. Existing aluminum alloy cables have greatly improved shear strength and can cope with most situations, reducing the probability of cable breakage. However, they still cannot provide effective protection when encountering excavators or other large machinery.

[0006] Chinese patent application CN201911342071.9 discloses a manufacturing process for aluminum alloy cables. By preparing multiple interlocking aluminum alloy sheaths and injecting a filler with shear-hardening properties, the shear resistance of the cable is effectively improved while maintaining a certain degree of flexibility. The invention includes the following production and assembly steps: stranding conductors to form stranded wires and extruding an insulation layer to prepare cable cores; machining multiple aluminum alloy sheaths; fabricating collars according to the outer dimensions of the aluminum alloy sheaths; tightly arranging multiple cable cores and inserting limiting rods between them to form cable core assemblies; fitting collars onto the outside of the aluminum alloy sheaths, ensuring the collars completely cover the grooves; injecting a filler with shear-hardening properties into the grooves on the outside of the aluminum alloy sheaths; fitting the aluminum alloy sheaths onto the assembled cable cores, and then sequentially fitting multiple other aluminum alloy sheaths onto the cable cores. The aluminum alloy sheaths are clamped together by extrusion. Although the sheaths are sequentially placed on the cable to protect the outside of the cable, the assembly requires limiting posts and blocks to restrict the position of the two sets of sheaths. This makes the assembly process time-consuming and laborious. Later, the limiting posts and blocks are covered with filler, making it difficult to disassemble the sheaths for maintenance. At the same time, the groove is closed by a collar and the filler is injected into it. The filler in the bottom groove will flow down by gravity, resulting in poor protective effect after the filler hardens. Summary of the Invention

[0007] This application provides an aluminum alloy cable and its manufacturing process, which solves the problem that in the prior art, the assembly requires limiting the position of two sets of sheaths by limiting posts and limiting blocks. This makes the assembly process time-consuming and labor-intensive, and it is difficult to disassemble the sheaths for maintenance after the limiting posts and limiting blocks are covered with filler. At the same time, the groove is closed by only using a collar and the filler is injected into it, so the filler in the bottom groove will flow downward by gravity, resulting in poor protective effect after the filler hardens.

[0008] The technical solutions adopted in the embodiments of this application are as follows.

[0009] An aluminum alloy cable includes a cable core, a first clamp connecting the cable cores, a sheath protecting the cable core, a limiting member connecting two adjacent sheaths, and a second limiting rod cooperating with the limiting member; a first groove is formed on the inner side of the sheath; a second groove corresponding to the side wall of the cable core is formed on the side wall of the first groove; the number of second grooves corresponds to the number of cable cores; the first clamp is close to the side wall of the cable core and separates each group of cable cores to form a cable core group; a third groove and a fourth groove are formed on the upper and lower sides of the sheath, respectively; the limiting member is located in the third groove; the second limiting rod is threaded through the fourth groove; when two adjacent groups of limiting members correspond to the second limiting rod, the positions of the two adjacent groups of sheaths are restricted.

[0010] As a further improvement to the above technical solution: a fifth groove is formed on the side wall of the sheath; a sleeve plate is provided in the fifth groove; the sleeve plate covers the fifth groove; a gap is left between the sleeve plate and the fifth groove; a hole groove is formed on the sleeve plate; a plurality of holes grooves are arranged in a circumferential array; a sealing element is provided in the hole groove; the sealing element seals the hole groove; the sealing element is composed of a plurality of fan-shaped rubber sheets.

[0011] As a further improvement to the above technical solution: the limiting component includes a first limiting rod, a first resetting component for resetting the first limiting rod, a limiting block for preventing the second limiting rod from disengaging, and a second resetting component for resetting the limiting block; a hook is provided at the end of the first limiting rod; a limiting groove is formed in the hook; the second limiting rod corresponds to the limiting groove; one end of the first resetting component is disposed on the third groove, and the other end of the first resetting component abuts against the first limiting rod; the end of the hook is rotatably connected to the limiting block; the second resetting component is disposed between the hook and the limiting block.

[0012] As a further improvement to the above technical solution: a rubber component is provided on the top of the sheath.

[0013] As a further improvement to the above technical solution: a second locking strip is provided on the side wall of the first groove; a sixth groove corresponding to the second locking strip is opened on the side wall of the first locking strip; the end face of the second locking strip passes through the sixth groove; both the end face of the sixth groove and the second locking strip are convex.

[0014] As a further improvement to the above technical solution: an aluminum alloy cable manufacturing process, applied to the aluminum alloy cable according to any one of claims 1-5, includes the following production and assembly steps: S1. Preparation of cable core: Multiple conductors are stranded together to form a uniform and tightly stranded wire. An insulation layer is then extruded onto the outside of the stranded wire. The conductor is made of aluminum alloy. The composition and mass percentage of each component are as follows: silicon, 0.25-0.90 wt% iron, 0.20-0.40 wt% copper, magnesium, zinc, with the balance being aluminum and impurities, and the total impurity content ≤0.10 wt%. S2. Cable core assembly: Multiple groups of cable cores that have undergone extrusion insulation are arranged closely together and the first clip is inserted between the cable cores. The first clip is close to the side wall of the cable core and separates each group of cable cores to form the cable core group. S3. Processing the sheath: Several sheaths are manufactured by machining. The sheaths have the first groove and the second groove. The sidewall of the second groove corresponds to the sidewall of the cable core assembly and restricts the position of the cable core assembly. S4. Accessory preparation: The upper and lower surfaces of the sheath are respectively provided with the fourth groove and the third groove. The limiting member is installed in the third groove, and the second limiting rod is installed in the fourth groove. The side wall of the sheath is provided with the fifth groove. The sleeve plate is provided at the fifth groove. The gap is left between the sleeve plate and the fifth groove. The sleeve plate is provided with the hole groove, and the sealing member is provided on the hole groove. S5. Injecting filler: The filler with shear hardening properties is inserted into the groove through the discharge end and injected into the gap. At the same time, the seal covers the discharge end to prevent the filler from overflowing. S6. Sheath assembly: The sheaths equipped with the limiting member and the second limiting rod are sequentially fitted onto the outside of the cable core assembly until two adjacent sheaths come into contact. At this time, the third groove on the bottom sheath corresponds to the fourth groove on the upper sheath and the limiting member corresponds to the second limiting rod until the limiting member hooks the second limiting rod. At this time, the positions of the two adjacent sheaths are relatively fixed.

[0015] As a further improvement to the above technical solution: the second card strip is also prepared in S4; Before assembling the S6 protective sleeve, first align the second clip with the sixth slot. At this time, the position of the protective sleeve is pre-limited. After assembly, the protective sleeve distributes the pressure to the first clip through the second clip. After the S6 protective sleeve is assembled, shock-absorbing material is injected into the space formed between the protective sleeve, the first groove, the first clip, and the second clip.

[0016] As a further improvement to the above technical solution: In the specific steps of S6: the sheath equipped with the limiting member and the second limiting rod is sequentially fitted onto the outside of the cable core group until two adjacent sheaths correspond. At this time, the upper sheath is pressed down until the hook contacts the second limiting rod. At this time, the angle of the second limiting rod changes and the first reset member is compressed. At the same time, the upper sheath compresses the rubber part until the second limiting rod contacts the limiting block. At this time, the angle of the limiting block shifts. At this time, the first reset member pushes the first limiting rod so that the second limiting rod contacts the first limiting rod. Then, the upper sheath is released until the second limiting rod is inserted between the limiting block and the limiting groove. At this time, the position of the sheath is fixed relative to the adjacent sheath and the rubber part is in an unfolded state. At the same time, the rubber part restricts the second limiting rod in the limiting groove.

[0017] As a further improvement to the above technical solution, it also includes S7, sheath disassembly and maintenance: using a hex wrench, the second limiting rods are removed from the fourth groove in sequence until all the second limiting rods in a group are removed from the fourth groove, thereby separating the two adjacent groups of sheaths.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. The cable core assembly consists of three groups arranged in a circumferential array. A first retaining strip connects the three groups of cable cores, integrating them into a single unit. A cylindrical sheath covers the outer side of the cable core assembly. The inner wall of the sheath has a first groove and a second groove, with the sidewall of the second groove corresponding to the sidewall of the cable core assembly. A third groove and a fourth groove are respectively provided on the upper and lower sides of the sheath. A limiting element is installed in the third groove, and a second limiting rod is installed in the fourth groove. The limiting element and the second limiting rod are arranged in a circumferential array of three groups, corresponding to the three groups of cable cores. This ensures that regardless of the sheath's angular deviation, the second limiting rod will align with the limiting element when the second groove is aligned with the cable core assembly. During installation, pressing the limiting element on one group of sheaths to engage with the second limiting rod on another group of sheaths secures the connection between the two groups of sheaths, thus protecting the outer side of the cable core assembly.

[0019] 2. The sleeve has a fifth groove on its side wall, which surrounds the outer side of the sleeve. The outer end of the fifth groove is covered by a sleeve plate, and there is a gap between the sleeve plate and the fifth groove. This allows for the replacement of different filling materials according to different environments. The side wall of the sleeve plate has holes and slots, and there are three sets of holes and slots arranged in a circumferential array. A sealing element is installed in the hole and slot. The sealing element is composed of several rubber sheets. When the injection tube is inserted into the gap through the hole plate, the sealing element opens and covers the side wall of the injection tube, thereby preventing the gap from communicating with the outside and causing the filling material to overflow to the outside of the sleeve.

[0020] 3. Because the first limiting rod is hinged in the third groove, a hook is provided on the side of the first limiting rod away from the hinge point. The hook and the first limiting rod form a "J" shape. The end face of the hook is hinged to a limiting block. The rotation angle of one side of the limiting block is limited and it can only rotate in the direction of the hook. A limiting groove is opened on the inner side of the hook. The limiting groove and the limiting block form an area that restricts the second limiting rod, thereby preventing the second limiting rod from disengaging from the limiting groove. A second reset member is provided in the third groove. The second reset member pushes the first limiting rod to always be in contact with the side wall of the third groove. At the same time, a rubber part is provided on the top of the sheath. The compression deformation of the rubber part allows the second limiting rod to pass the hook and be inserted into the limiting groove with a height margin, while sealing between the two sets of sheaths to prevent liquid or impurities from entering the sheath.

[0021] 4. Because a second locking strip is set on the side wall of the first slot, the second locking strip is located between two sets of adjacent second slots. The end face of the second locking strip is 'convex' shaped. Three sets of fourth rods are arranged in a circumferential array. A sixth slot with the same 'convex' shape as the end face of the second locking strip is opened on the side wall of the first locking strip. The sixth slot passes through the first locking strip. When the second locking strip is inserted into the sixth slot, the angle of the sheath is consistent with the angle of the cable group, which makes it easy to cover the cable core group with the sheath. At the same time, when the position of the sheath is fixed, the external pressure can be distributed to the first locking strip through the fourth rod, making the sheath stronger and better protecting the cable core group. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first embodiment of the aluminum alloy cable in this invention.

[0023] Figure 2 This is a top view of the first embodiment of the aluminum alloy cable in this invention.

[0024] Figure 3 This is a schematic diagram of the sheath structure in this invention.

[0025] Figure 4 This is a schematic diagram of the combined structure of a single sheath and cable core assembly in this invention.

[0026] Figure 5 This is a schematic diagram of the limiting component in this invention.

[0027] Figure 6 This is a cross-sectional view of the limiting member in this invention.

[0028] Figure 7 This is a top view of the second embodiment of the aluminum alloy cable in this invention.

[0029] In the diagram: 1. Cable core; 11. Cable core assembly; 2. First retaining strip; 3. Sheath; 31. First groove; 32. Second groove; 33. Third groove; 34. Fourth groove; 35. Fifth groove; 36. Gap; 4. Limiting component; 41. First limiting rod; 411. Hook; 412. Limiting groove; 42. First reset component; 43. Limiting block; 44. Second reset component; 5. Second limiting rod; 6. Sleeve; 61. Hole / slot; 62. Sealing component; 7. Rubber component; 8. Second retaining strip. Detailed Implementation

[0030] This application provides an aluminum alloy cable and its manufacturing process, which solves the problem that in the prior art, the assembly requires limiting the position of two sets of sheaths by limiting posts and limiting blocks. This makes the assembly process time-consuming and labor-intensive, and it is difficult to disassemble the sheaths for maintenance after the limiting posts and limiting blocks are covered with filler. At the same time, the groove is closed by only using a collar and the filler is injected into it, so the filler in the bottom groove will flow downward by gravity, resulting in poor protective effect after the filler hardens.

[0031] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows: To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] First embodiment: Figure 1 This is a schematic diagram of the first embodiment of the aluminum alloy cable in this invention; Figure 2 This is a top view of the first embodiment of the aluminum alloy cable in this invention; Figure 3 This is a schematic diagram of the sheath structure in this invention; Figure 4 This is a schematic diagram of the combined structure of a single sheath and cable core assembly in this invention; Figure 5 This is a schematic diagram of the limiting component in this invention; Figure 6 This is a cross-sectional view of the limiting member in this invention; combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this invention discloses an aluminum alloy cable and its manufacturing process.

[0033] An aluminum alloy cable includes a cable core 1, a first clamping strip 2 connecting the cable cores 1, a sheath 3 protecting the cable core 1, a limiting member 4 connecting two adjacent sheaths 3, and a second limiting rod 5 cooperating with the limiting member 4; a first groove 31 is formed on the inner side of the sheath 3; a second groove 32 corresponding to the side wall of the cable core 1 is formed on the side wall of the first groove 31; the number of second grooves 32 corresponds to the number of cable cores 1; the first clamping strip 2 is close to the side wall of the cable core 1 and separates each group of cable cores 1 to form a cable core group 11; a third groove 33 and a fourth groove 34 are formed on the upper and lower sides of the sheath 3, respectively; the limiting member 4 is located in the third groove 33; the second limiting rod 5 is threaded through the fourth groove 34; when two adjacent groups of limiting members 4 correspond to the second limiting rod 5, the positions of the two adjacent groups of sheaths 3 are restricted.

[0034] Cable core 1 is formed by twisting multiple conductors into a uniform and tightly stranded wire, and then extruding an insulation layer onto the outside of the stranded wire. Several groups of cable core 1 are arranged in a circumferential array, preferably three groups. A first retaining strip 2 is provided between the three groups of cable core 1. The side wall of the first retaining strip 2 has a groove that matches the side wall of the cable core 1. The first retaining strip 2 is replaced according to the number of cable core 1s. The sheath 3 is cylindrical, and a first groove 31 is provided on the inner side of the sheath 3. The first groove 31 is cylindrical, and a second groove 32 is provided on the side wall of the first groove 31. The diameter of the second groove 32 matches the diameter of the cable core 1, and the number of second grooves 32 corresponds to the number of cable core 1s. When the cable core 1 group is assembled into the sheath 3, a space is left between the first retaining strip 2 and the sheath 3. This space can be filled with cushioning material. To further enhance the protective effect of the sheath 3, a third groove 33 is provided on the upper surface of the sheath 3, and a limiting member 4 is provided in the third groove 33. The limiting member 4 is hook-shaped. A fourth groove 34 is provided on the lower surface of the sheath 3, and a second limiting rod 5 is detachably connected to the fourth groove 34 by a thread. The second limiting rod 5 corresponds to the limiting member 4, and the limiting member 4 can hook the second limiting rod 5 to fix the two sets of sheaths 3 together. A rubber part 7 is provided on the top of the sheath 3. The rubber part 7 corresponds to the upper surface of the sheath 3 and has a clearance groove to avoid the third groove 33 and the fourth groove 34. The rubber part 7 can be made of other deformable and elastic materials, preferably rubber. The first locking strip 2 is deformable and can change with the changes of the cable core 1. The upper and lower sides of the second groove 32 are chamfered to facilitate the cooperation with the cable core 1.

[0035] The cable core 1 is arranged in a circumferential array of three groups to form a cable core group 11. A first retaining strip 2 is provided between the three groups of cable core 1, integrating the three groups of cable core 1 into a whole. A sheath 3 is sleeved on the outside of the cable core group 11. The sheath 3 is cylindrical. A first groove 31 and a second groove 32 are opened on the inner side wall of the sheath 3. The side wall of the second groove 32 corresponds to the side wall of the cable core group 11. A third groove 33 and a fourth groove 34 are opened on the upper and lower sides of the sheath 3, respectively. A limit member 4 is provided in the third groove 33. A second limiting rod 5 is provided within the four slots 34. Three sets of limiting members 4 and the second limiting rod 5 are arranged in a circumferential array, corresponding to the three sets of cable cores 1. This ensures that regardless of the angular offset of the sheath 3, the second limiting rod 5 aligns with the limiting member 4 whenever the second slot 32 is aligned with the cable core group 11. Furthermore, during installation, pressing one set of limiting members 4 on one sheath 3 to engage with the second limiting rod 5 on another set of sheaths 3 secures the two sets of sheaths 3 together, thus protecting the outer side of the cable core group 11. A fifth groove 35 is provided on the side wall of the sheath 3; a sleeve plate 6 is provided in the fifth groove 35; the sleeve plate 6 covers the fifth groove 35; a gap 36 is left between the sleeve plate 6 and the fifth groove 35; a hole groove 61 is provided on the sleeve plate 6; several holes grooves 61 are arranged in a circumferential array; a sealing element 62 is provided in the hole groove 61; the sealing element 62 seals the hole groove 61; the sealing element 62 is composed of several fan-shaped rubber sheets.

[0036] The side wall of the sheath 3 has a fifth groove 35, which is a concave annular groove, making the cross-section of the sheath 3 I-shaped. A sleeve plate 6 is provided around the fifth groove 35. The sleeve plate 6 is cylindrical, and the outer diameter of the sleeve plate 6 is the same as the diameter of the sheath 3. The inner diameter of the sleeve plate 6 is larger than the diameter of the fifth groove 35. A gap 36 is left between the sleeve plate 6 and the fifth groove 35. A hole 61 is provided in the middle of the sleeve plate 6. The number of holes 61 can be different according to the ductility of the material to ensure that the filler completely covers the gap 36. A sealing element 62 is provided in the hole 61. The sealing element 62 is composed of several rubber sheets. When the injection tube is inserted into the gap 36 through the hole plate, the sealing element 62 opens and covers the side wall of the injection tube, thereby preventing the gap 36 from communicating with the outside and causing the filler to overflow to the outside of the sheath 3. At the same time, different materials can be filled inside according to customer requirements to ensure that the customer uses it in a suitable application scenario.

[0037] Because the sheath 3 has a fifth groove 35 on its side wall, the fifth groove 35 surrounds the outside of the sheath 3, and the outer end of the fifth groove 35 is covered by a sleeve plate 6. A gap 36 is left between the sleeve plate 6 and the fifth groove 35, so that different filling materials can be replaced according to different environments. The side wall of the sleeve plate 6 has a hole groove 61, and three sets of holes groove 61 are arranged in a circumferential array. A sealing element 62 is installed in the hole groove 61. The sealing element 62 is composed of several rubber sheets. When the injection tube is inserted into the gap 36 through the hole plate, the sealing element 62 opens and covers the side wall of the injection tube, thereby preventing the gap 36 from communicating with the outside and causing the filling material to overflow to the outside of the sheath 3.

[0038] The limiting component 4 includes a first limiting rod 41, a first resetting component 42 for resetting the first limiting rod 41, a limiting block 43 for preventing the second limiting rod 5 from disengaging, and a second resetting component 44 for resetting the limiting block 43; a hook 411 is provided at the end of the first limiting rod 41; a limiting groove 412 is formed in the hook 411; the second limiting rod 5 corresponds to the limiting groove 412; one end of the first resetting component 42 is provided on the third groove 33, and the other end of the first resetting component 42 abuts against the first limiting rod 41; the end of the hook 411 is rotatably connected to the limiting block 43; the second resetting component 44 is provided between the hook 411 and the limiting block 43.

[0039] A rubber part 7 is provided on the top of the sheath 3.

[0040] The first limiting rod 41 is rod-shaped, with one end hinged in the third groove 33. The side wall of the first limiting rod 41 contacts and presses against one side of the third groove 33, causing the first limiting rod 41 to deflect at a certain angle, thereby preventing the second limiting rod 5 from disengaging from the limiting groove 412. A first reset member 42 is provided in the third groove 33. The first reset member 42 can be any elastic component that can reset the first limiting rod 41, preferably a spring. One end of the first reset member 42 abuts against the third groove 33, and the other end abuts against the first limiting rod 41 to prevent the first reset member 42 from disengaging from the third groove 33. The two ends of the first reset member 42 can be welded or glued to the first limiting rod 41 or the third groove 33. Alternatively, grooves corresponding to the first reset member 42 can be opened on the side walls of the first reset member 42 and the third groove 33 to limit the position of the end face of the first reset member 42. The bottom of the first limiting rod 41 is provided with A hook 411 is provided, which is combined with the first limiting rod 41 in a J-shape. The top of the hook 411 is hinged to a limiting block 43, which is tilted at an angle towards the top, so that the second limiting rod 5 can abut against the upper inclined surface of the limiting block 43, causing the limiting block 43 to shift until the second limiting rod 5 falls into the limiting groove 412. A second reset member 44 is provided between the limiting block 43 and the hook 411. The second reset member 44 is an elastic iron sheet, which resets the position of the limiting block 43. When disassembly is required, the second limiting rod 5 is removed from the fourth groove 34 with a hex wrench until the second limiting rod 5 is removed from the limiting groove 412. At this time, the two sets of adjacent protective sleeves 3 can be disassembled. The height difference between the rubber part 7 compressed to its minimum height and the rubber part 7 in its normal state is slightly greater than the height between the top of the hook 411 and the bottom of the limiting groove 412. This ensures that when the second limiting rod 5 is in the limiting groove 412, the rubber part 7 still seals the gap between the two sets of protective sleeves 3.

[0041] Because the first limiting rod 41 is hinged in the third groove 33, a hook 411 is provided on the side of the first limiting rod 41 away from the hinge point. The hook 411 and the first limiting rod 41 form a "J" shape. The end face of the hook 411 is hinged to a limiting block 43. The rotation angle of one side of the limiting block 43 is limited and it can only rotate in the direction of the hook 411. A limiting groove 412 is opened on the inner side of the hook 411. The limiting groove 412 and the limiting block 43 form an area that restricts the second limiting rod 5, thereby preventing the second limiting rod 5 from disengaging from the limiting groove 412. A second reset member 44 is provided in the third groove 33. The second reset member 44 pushes the first limiting rod 41 to always fit against the side wall of the third groove 33. At the same time, a rubber part 7 is provided on the top of the sheath 3. The compression deformation of the rubber part 7 allows the second limiting rod 5 to pass the hook 411 and be inserted into the limiting groove 412 with a height margin, while sealing between the two sets of sheaths 3 to prevent liquid or impurities from entering the sheath 3.

[0042] A manufacturing process for aluminum alloy cables includes the following production and assembly steps: S1. Preparation of cable core: Multiple conductors are stranded together to form a uniform and tightly stranded wire. An insulation layer is then extruded onto the outside of the stranded wire. The conductor is made of aluminum alloy. The composition and mass percentage of each component are as follows: silicon, 0.25-0.90 wt% iron, 0.20-0.40 wt% copper, magnesium, zinc, with the balance being aluminum and impurities, and the total impurity content ≤0.10 wt%. S2. Cable core assembly: Multiple groups of cable cores 1 that have been extruded and insulated are arranged closely together and a first clip 2 is inserted between the cable cores 1. The first clip 2 is close to the side wall of the cable core 1 and separates each group of cable cores 1 to form a cable core group 11. S3. Processing sheaths: Several sheaths 3 are made by machining. A first groove 31 and a second groove 32 are opened in the sheath 3. The side wall of the second groove 32 corresponds to the side wall of the cable core 1 group and restricts the position of the cable core 11. S4. Accessory preparation: The upper and lower sides of the sheath 3 are respectively provided with a fourth groove 34 and a third groove 33. The third groove 33 is equipped with a limiting component 4, and the fourth groove 34 is equipped with a second limiting rod 5. The side wall of the sheath 3 is provided with a fifth groove 35. A sleeve plate 6 is provided at the fifth groove 35. A gap 36 is left between the sleeve plate 6 and the fifth groove 35. A hole groove 61 is provided on the sleeve plate 6, and a sealing component 62 is provided on the hole groove 61. S5. Injecting filler: The filler with shear hardening properties is inserted into the groove 61 through the discharge end and injected into the gap 36. At the same time, the sealing element 62 covers the discharge end to prevent the filler from overflowing. S6. Sheath assembly: The sheath 3 equipped with the limiting component 4 and the second limiting rod 5 is sequentially fitted onto the outside of the cable core assembly 11 until two adjacent sheaths 3 come into contact. At this time, the third groove 33 on the bottom sheath 3 corresponds to the fourth groove 34 on the upper sheath 3 and the limiting component 4 corresponds to the second limiting rod 5 until the limiting component 4 hooks the second limiting rod 5. At this time, the positions of the two adjacent sheaths 3 are relatively fixed.

[0043] After the S6 protective sleeve is assembled, shock-absorbing material is injected into the space formed between the protective sleeve 3, the first groove 31, the first clip 2 and the second clip 8.

[0044] In the specific steps of S6: The sleeve 3 with the limiting component 4 and the second limiting rod 5 are sequentially fitted onto the outside of the cable core 1 group until two adjacent sleeves 3 correspond. At this time, the upper sleeve 3 is pressed down until the hook 411 contacts the second limiting rod 5. At this time, the angle of the second limiting rod 5 changes and the first reset component 42 is compressed. At the same time, the upper sleeve 3 compresses the rubber component 7 until the second limiting rod 5 contacts the limiting block 43. At this time, the angle of the limiting block 43 shifts. At this time, the first reset component 42 pushes the first limiting rod 41 so that the second limiting rod 5 contacts the first limiting rod 41. Then, the upper sleeve 3 is released until the second limiting rod 5 is inserted between the limiting block 43 and the limiting groove 412. At this time, the position of the sleeve 3 is fixed relative to the adjacent sleeve 3 and the rubber component 7 is in the unfolded state. At the same time, the rubber component 7 restricts the second limiting rod 5 in the limiting groove 412.

[0045] It also includes S7, sheath disassembly and maintenance: using a hex wrench, the second limit rod 5 is removed from the fourth groove 34 in sequence until all the second limit rods 5 in a group are removed from the fourth groove 34, thereby separating the two adjacent groups of sheaths 3.

[0046] Second embodiment: Figure 7 This is a top view of the second embodiment of the aluminum alloy cable in this invention; combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the second embodiment differs from the first embodiment in that: A second locking strip 8 is provided on the side wall of the first groove 31; a sixth groove corresponding to the second locking strip 8 is provided on the side wall of the first locking strip 2; the end face of the second locking strip 8 passes through the sixth groove; both the sixth groove and the end face of the second locking strip 8 are convex.

[0047] A second card strip 8 was also prepared in S4; Before assembling the S6 protective sleeve, first align the second clip 8 with the sixth slot. At this time, the position of the protective sleeve 3 is pre-limited. After the protective sleeve 3 is assembled, the pressure is distributed to the first clip 2 through the second clip 8. Because the first slot 31 has a second locking strip 8 on its side wall, the second locking strip 8 is located between two adjacent second slots 32, and the end face of the second locking strip 8 is convex. The fourth rod is arranged in three circumferential arrays. The side wall of the first locking strip 2 has a sixth slot that is convex on the end face of the second locking strip 8. The sixth slot passes through the first locking strip 2. When the second locking strip 8 is inserted into the sixth slot, the angle of the sheath 3 is consistent with the angle of the cable group, which makes it easy to cover the cable core group 11 with the sheath 3. At the same time, when the position of the sheath 3 is fixed, the external pressure can be distributed to the first locking strip 2 through the fourth rod, making the sheath 3 stronger and better protecting the cable core group 11.

[0048] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0049] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An aluminum alloy cable, characterized in that, include: Cable core (1), first retaining bar (2), sheath (3), limiting member (4) and second limiting rod (5); The first clip (2) is used to attach and isolate the cable cores (1) between them, so that each group of cable cores (1) forms an independent cable core group (11). The sheath (3) is used to cover and protect the cable core assembly (11). It has a first groove (31) on its inner side. The side wall of the first groove (31) has a number of second grooves (32) corresponding to the cable core (1), and each second groove (32) is positioned in conjunction with the side wall of the corresponding cable core (1). The side wall of the first groove (31) is provided with a second locking strip (8), and the side wall of the first locking strip (2) is provided with a sixth groove corresponding to the second locking strip (8); The end face of the second card strip (8) passes through the sixth groove, and the end structures of both are convex to enhance the fitting stability; The upper and lower surfaces of the sheath (3) are respectively provided with a third groove (33) and a fourth groove (34) for installing the limiting component; The limiting member (4) is set in the third groove (33), and the second limiting rod (5) is threaded through the fourth groove (34). When two adjacent sets of sheaths (3) are spliced ​​together and the limiting member (4) and the second limiting rod (5) are connected, the relative limiting between the two adjacent sets of sheaths (3) is realized.

2. The aluminum alloy cable as described in claim 1, characterized in that, The sheath (3) has a fifth groove (35) on its side wall. A sleeve plate (6) is installed in the fifth groove (35). The sleeve plate (6) covers the fifth groove (35) and forms a gap (36) between it and the groove. The sleeve plate (6) is provided with a plurality of holes (61) arranged in a circumferential array. Each hole (61) is provided with a sealing element (62) composed of several fan-shaped rubber sheets, which is used to seal the hole (61) and form an injectable structure.

3. The aluminum alloy cable as described in claim 2, characterized in that, The limiting member (4) is composed of a first limiting rod (41), a first resetting member (42), a limiting block (43), and a second resetting member (44); The first limiting rod (41) has a hook (411) at its end, and a limiting groove (412) is provided in the hook (411) for receiving the second limiting rod (5). One end of the first reset member (42) is fixed in the third groove (33), and the other end abuts against the first limiting rod (41) to provide it with a spring force; The front end of the hook (411) is hinged to the limiting block (43), and the second reset member (44) is disposed between the hook (411) and the limiting block (43) to provide the reset function of the limiting block (43).

4. The aluminum alloy cable as described in claim 3, characterized in that, The top of the sheath (3) is provided with a rubber part (7) to provide cushioning for vertical displacement generated during assembly.

5. A manufacturing process for aluminum alloy cables, used to manufacture the aluminum alloy cables as described in claim 4, characterized in that, Includes the following steps: S1. Preparation of cable core: Multiple aluminum alloy conductors are stranded to form stranded wire, and an insulation layer is extruded and coated on the outside to form cable core (1); The composition of the aluminum alloy conductor by mass percentage is: silicon 0.25-0.90%, iron 0.20-0.40%, copper 0.01-0.10%, magnesium 0.01-0.05%, zinc 0.01-0.10%, with the balance being aluminum and unavoidable impurities, and the total impurity content not exceeding 0.10%; S2. Cable core assembly: Multiple sets of extruded insulated cable cores (1) are arranged closely together and the first clip (2) is inserted to achieve isolation and fixation between the cable cores, forming a cable core group (11). S3, Processing sheaths: Multiple sheaths (3) are made by machining, and a first groove (31) and a second groove (32) are set inside them. The second groove (32) corresponds to the side wall of the cable core assembly (11) to limit its installation position; S4. Accessory preparation: The third groove (33) and the fourth groove (34) are machined on the upper and lower surfaces of the sheath (3) respectively, and the limiting part (4) and the second limiting rod (5) are assembled in sequence. Meanwhile, a fifth groove (35) is opened on the side wall, in which a sleeve plate (6) is installed and a gap (36) is left; a hole groove (61) is machined on the sleeve plate (6), and a sealing element (62) is provided in the hole groove (61); S5. Injecting filler: The filler with shear hardening properties is injected into the gap (36) through the discharge end, during which the discharge end is covered by the seal (62) to prevent the filler from overflowing; S6. Sheath assembly: The installed sheaths (3) are sequentially placed on the outside of the cable core assembly (11). When adjacent sheaths (3) come into contact, the third groove (33) of the lower sheath is opposite to the fourth groove (34) of the upper sheath. The limiting member (4) is connected with the second limiting rod (5) to achieve position fixation.

6. The aluminum alloy cable manufacturing process as described in claim 5, characterized in that: Prepare the second clip (8) in S4; before fitting the sheath in S6, first make the second clip (8) fit with the sixth slot to achieve the initial positioning of the sheath (3); After the sheath (3) is assembled, the assembly pressure is distributed to the first clamp (2) through the second clamp (8); Finally, shock-absorbing material is injected into the gap between the sheath (3), the first groove (31), the first clip (2) and the second clip (8) to enhance the cushioning performance.

7. The aluminum alloy cable manufacturing process as described in claim 5, characterized in that, In S6, after the sheath (3) is installed on the outside of the cable core assembly (11), the upper sheath (3) is pressed down to make its hook (411) contact the second limiting rod (5), thereby causing the angle of the second limiting rod (5) to change, the first reset member (42) to be compressed, and the rubber part (7) to be compressed. Subsequently, the second limiting rod (5) contacts the limiting block (43) and generates an angular offset. The first reset component (42) pushes the first limiting rod (41) to make the second limiting rod (5) engage between the limiting groove (412) and the limiting block (43), thereby achieving reliable positioning of the sheath (3). At the same time, the rubber component (7) returns to the unfolded state and provides restriction to the second limiting rod (5).

8. The aluminum alloy cable manufacturing process as described in claim 5, characterized in that, It also includes step S7, sheath disassembly and maintenance: using a hex wrench to remove the second limit rod (5) from the fourth groove (34) in sequence until all the second limit rods (5) corresponding to a set of sheaths (3) are completely removed, thereby realizing the modular disassembly of adjacent sheaths (3).

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