High speed double pitch electronic lay length stranding machine

Abstract

The utility model discloses a high -speed double -pitch electronic stranding pitch stranding machine, including bearing assembly, and bearing assembly includes fixed seat, and the upper end of fixed seat is installed with protection subassembly, and protection subassembly includes rotating stand, and the inner wall fixed mounting of fixed seat has the main shaft, and the outer wall of main shaft is installed with stranding assembly, and stranding assembly includes the sun tooth of fixed connection in the outer wall of main shaft, and the outer wall of sun tooth is engaged with a plurality of planetary gears of equidistance encircles, and the inner wall of planetary gear all rotationally installs guide cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of stranding machine technology, specifically a high-speed double-pitch electronic stranding machine. Background Technology

[0002] In the field of wire and cable manufacturing, high-speed double-pitch stranding machines are the core equipment for realizing conductor stranding. Their main function is to strand multiple single wires into stranded conductors that meet the specifications according to a preset pitch. They are widely used in power transmission, communication and other fields.

[0003] Traditional double-pitch stranding machines employ a "rotating spindle + follower cage" structural design. The spindle itself rotates, while the double cages, carrying the single wires, are rigidly connected to the spindle and rotate synchronously at high speed to complete the stranding action. However, in high-speed operation scenarios, the double cages, designed to accommodate multiple single wires stranding simultaneously, are typically large-diameter and heavy-mass structures. During high-speed rotation, even slight unevenness in mass distribution within the cage itself generates significant centrifugal force. This force directly acts on the rotating spindle and support bearings, exacerbating overall equipment vibration and compromising operational stability. Vibration directly interferes with the tension control of the stranded wires. Stable wire tension is crucial for ensuring uniform stranding pitch during stranding. Equipment vibration causes irregular fluctuations in single-wire delivery speed and stranding angular velocity, leading to excessive deviations in the actual stranding pitch. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed double-pitch electronic stranding machine, which has the advantages of a fixed central spindle to improve overall rigidity and stability, and separate drive to reduce vibration transmission. It solves the problems in the prior art where the auger is fixed to the spindle and rotates at high speed, causing vibration transmission, shortening life and resulting in uneven pitch.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-speed double-pitch electronic stranding machine includes a carrying component, which includes a fixed base. A protective component is installed on the upper end of the fixed base. The protective component includes a rotating frame. A main shaft is fixedly installed on the inner wall of the fixed base. A stranding assembly is installed on the outer wall of the main shaft. The stranding assembly includes a sun gear fixed to the outer wall of the main shaft. Several planetary gears are equidistantly arranged around the outer wall of the sun gear. A guide cylinder is rotatably installed on the inner wall of each planetary gear. The stranding assembly also includes a frame wheel rotatably installed on the inner wall of the rotating frame. The inner teeth of the frame wheel mesh with the planetary gears. Several slots are equidistantly arranged around the left and right ends of the frame wheel. A guide cylinder is fixedly installed in each slot.

[0006] Preferably, the load-bearing component also includes mounting holes that penetrate the inner walls of the left and right ends of the fixed base, with damping sleeves fixed to the inner walls of the mounting holes, and the main shaft fixed to the inner walls of the damping sleeves.

[0007] It is worth noting that the mounting holes of the mounting base can provide precise positioning for the vibration damping sleeve. The vibration damping sleeve wraps around the spindle and is fixed in the mounting holes. It can absorb the small vibrations that may be generated when the spindle is running, and prevent the vibration from being transmitted to the mounting base and causing overall shaking. It can also firmly fix the spindle through the cooperation between the mounting holes and the vibration damping sleeve, which can greatly improve the rigidity and stability of the spindle and prevent the spindle from shifting and causing uneven strand pitch.

[0008] Preferably, a limiting rod is fixedly connected to the outer edge of the spindle, and a limiting sleeve is fixedly connected to the upper edge of the fixed seat, with the inner wall of the limiting sleeve fitting against the outer wall of the limiting rod.

[0009] It is worth noting that by tightly fitting the limiting rod and the limiting sleeve, the radial displacement of the spindle can be further restricted, preventing the spindle from shifting due to centrifugal force when rotating at high speed, thus strengthening the fixing effect of the spindle. This dual positioning structure allows the spindle to always maintain precise coaxiality, providing a stable operating foundation for the stranded wire assembly, reducing the vibration transmission caused by spindle shaking, and ensuring uniform stranded wire pitch.

[0010] Preferably, a vibration damping pad is fixedly connected to the upper center of the fixed base, and the protective assembly also includes a protective cover fixedly connected to the upper end of the vibration damping pad, with a rotating frame fixedly connected to the inner wall of the protective cover.

[0011] It is worth noting that the vibration damping pads located between the protective cover and the fixed base can absorb the vibration generated by the operation of the protective cover and the internal rotating frame, prevent the vibration from being transmitted to the fixed base and the spindle, and achieve "vibration isolation between the drive components and the fixed spindle". At the same time, the vibration damping pads can buffer the installation pressure of the protective cover, avoid component wear caused by rigid contact, and extend the service life.

[0012] Preferably, the stranded wire assembly also includes a fixing bracket fixed to the right end of the sun tooth, and the right end of the fixing bracket has a groove that surrounds the entire circumference.

[0013] It is worth noting that the fixed bracket, relying on the fixed connection between the sun gear and the spindle, provides a stable installation foundation. The groove opened in the fixed bracket provides a directional sliding track for the planetary carrier, ensuring that when the planetary gear drives the guide cylinder to revolve around the sun gear, the planetary carrier always moves along the groove, avoiding vibration caused by planetary gear misalignment, further improving the stability of the stranded wire assembly and ensuring the accuracy of wire guidance.

[0014] Preferably, several planetary carriers are slidably installed on the inner wall of the chute, with each planetary carrier corresponding to a guide tube, and the end of the planetary carrier is fixed to the outer wall of the guide tube.

[0015] It is worth noting that by sliding the planetary carrier in the groove and fixing it to the guide cylinder, the guide cylinder can be driven to revolve synchronously with the planetary gear. At the same time, the limiting function of the groove can prevent the guide cylinder from wobbling radially when running at high speed. This structure makes the movement trajectory of the guide cylinder more precise, reduces friction and vibration with the wire, and the sliding cooperation between the planetary carrier and the fixed frame avoids the transmission of vibration caused by rigid connection, indirectly ensuring the stability of the spindle.

[0016] Preferably, a servo motor is installed at the upper inner edge of the protective cover, and a gear is fixedly connected to the output end of the servo motor, which meshes with the outer teeth of the frame wheel.

[0017] It is worth noting that the servo motor drives the frame wheel to rotate through gears. This external drive method completely separates the power source from the fixed spindle, avoiding the direct transmission of motor vibration to the spindle and core stranding components. This aligns with the advantage of "separate drive to reduce vibration transmission". At the same time, the servo motor can precisely control the speed of the frame wheel, ensuring a stable transmission ratio between the frame wheel and the planetary gears, thereby ensuring uniform stranding pitch.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a fixed-installation design for the main shaft on the inner wall of the fixed base, preventing it from rotating with the drive components. This fundamentally improves the rigidity and stability of the overall structure, providing a stable central reference for the stranded wire assembly. The sun gear fixed to the outer wall of the main shaft remains fixed, forming a meshing transmission structure with the internal teeth of the planetary gears and the carrier wheel. The carrier wheel is rotated and installed on the inner wall of the rotating frame of the protective assembly, completely separating the drive components (rotating frame and carrier wheel) from the fixed main shaft. This avoids the vibration transmission problem caused by the fixed main shaft of the winch in traditional technology. At the same time, the guide cylinder one on the inner wall of the planetary gear and the guide cylinder two in the slot of the carrier wheel cooperate to guide the wire. Because the main shaft is fixed and the drive is separated from the main shaft, the planetary gear's revolution trajectory is more accurate, reducing the guide offset caused by vibration and ensuring uniform stranded wire pitch. Attached Figure Description

[0019] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural breakdown diagram of the present invention; Figure 3 This is a three-dimensional structural disassembly diagram of the load-bearing component of this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the protective component of this utility model; Figure 5 This is a three-dimensional structural diagram of the stranded wire assembly of this utility model.

[0020] Reference numerals in the attached drawings: 101, fixed base; 102, mounting hole; 103, vibration damping sleeve; 104, spindle; 105, limit rod; 106, limit sleeve; 107, vibration damping pad; 201, protective cover; 202, rotating frame; 203, servo motor; 204, gear; 301, sun gear; 302, fixed frame; 303, slide groove; 304, planetary carrier; 305, guide cylinder one; 306, planetary gear; 307, carrier wheel; 308, slot; 309, guide cylinder two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the problems in existing technologies where the intermediate coil is fixed to the main shaft and rotates at high speed, causing vibration transmission, shortening lifespan, and resulting in uneven pitch, the following technical solution is proposed. Please refer to [link / reference needed]. Figures 1-5 ; A high-speed double-pitch electronic stranding machine includes a carrying component, which includes a fixed base 101. A protective component is installed on the upper end of the fixed base 101. The protective component includes a rotating frame 202. A main shaft 104 is fixedly installed on the inner wall of the fixed base 101. A stranding assembly is installed on the outer wall of the main shaft 104. The stranding assembly includes a sun gear 301 fixedly connected to the outer wall of the main shaft 104. Several planetary gears 306 are equidistantly arranged around the outer wall of the sun gear 301. A guide cylinder 305 is rotatably installed on the inner wall of each planetary gear 306. The stranding assembly also includes a frame wheel 307 rotatably installed on the inner wall of the rotating frame 202. The inner teeth of the frame wheel 307 mesh with the planetary gears 306. Several slots 308 are equidistantly arranged around the left and right ends of the frame wheel 307. A guide cylinder 309 is fixedly connected to each slot 308.

[0023] The main shaft 104, which is fixedly mounted on the inner wall of the fixed base 101, does not rotate with the drive component, thus improving the rigidity and stability of the overall structure from the source. This provides a stable central reference for the stranded wire assembly. The sun gear 301, which is fixedly attached to the outer wall of the main shaft 104, remains fixed and forms a meshing transmission structure with the internal teeth of the planetary gear 306 and the carrier wheel 307. The carrier wheel 307 is rotatably mounted on the inner wall of the rotating frame 202 of the protective component, so that the drive component (rotating frame 202 and carrier wheel 307) is completely separated from the fixed main shaft 104, avoiding the vibration transmission problem caused by the cage being fixed to the main shaft 104 in the traditional technology. At the same time, the guide cylinder 305 on the inner wall of the planetary gear 306 and the guide cylinder 309 in the slot 308 of the carrier wheel 307 cooperate to guide the wire. Because the main shaft 104 is fixed and the drive is separated from the main shaft 104, the revolution trajectory of the planetary gear 306 is more accurate, reducing the guide offset caused by vibration and ensuring uniform stranded wire pitch.

[0024] Please see Figure 3 The supporting component also includes mounting holes 102 through the inner walls of the left and right ends of the fixed base 101. A damping sleeve 103 is fixedly connected to the inner wall of the mounting hole 102, and the main shaft 104 is fixedly connected to the inner wall of the damping sleeve 103. The mounting holes 102 of the fixed base 101 can provide precise positioning for the damping sleeve 103. The damping sleeve 103 wraps around the main shaft 104 and is fixed in the mounting hole 102. It can absorb the small vibrations that may be generated when the main shaft 104 is running, and prevent the vibration from being transmitted to the fixed base 101 and causing overall shaking. It can also firmly fix the main shaft 104 through the cooperation of the mounting hole 102 and the damping sleeve 103, which can greatly improve the rigidity and stability of the main shaft 104 and prevent the main shaft 104 from shifting and causing uneven stranded wire pitch.

[0025] A limiting rod 105 is fixedly connected to the outer edge of the spindle 104, and a limiting sleeve 106 is fixedly connected to the upper edge of the fixed seat 101. The inner wall of the limiting sleeve 106 fits against the outer wall of the limiting rod 105. By tightly fitting the limiting rod 105 and the limiting sleeve 106, the radial displacement of the spindle 104 can be further restricted, preventing the spindle 104 from shifting due to centrifugal force when rotating at high speed. This strengthens the fixing effect of the spindle 104. This dual positioning structure allows the spindle 104 to always maintain precise coaxiality, providing a stable operating foundation for the stranded wire assembly, reducing the vibration transmission caused by the shaking of the spindle 104, and ensuring uniform stranded wire pitch.

[0026] A vibration damping pad 107 is fixedly connected to the upper center of the fixed base 101. The protective assembly also includes a protective cover 201 fixedly connected to the upper end of the vibration damping pad 107. A rotating frame 202 is fixedly connected to the inner wall of the protective cover 201. The vibration damping pad 107 is located between the protective cover 201 and the fixed base 101, which can absorb the vibration generated by the operation of the protective cover 201 and the internal rotating frame 202, and prevent the vibration from being transmitted to the fixed base 101 and the spindle 104, thereby achieving "vibration isolation between the drive component and the fixed spindle 104". At the same time, the vibration damping pad 107 can buffer the installation pressure of the protective cover 201, avoid component wear caused by rigid contact, and extend service life.

[0027] Please see Figure 4 The stranded wire assembly also includes a fixing frame 302 fixed to the right end of the sun gear 301. The right end of the fixing frame 302 has a circumferential groove 303. The fixing frame 302 has a stable installation foundation based on the fixed connection between the sun gear 301 and the spindle 104. The groove 303 of the fixing frame 302 provides a directional sliding track for the planetary carrier 304, ensuring that when the planetary gear 306 drives the guide cylinder 305 to revolve around the sun gear 301, the planetary carrier 304 always moves along the groove 303, avoiding vibration caused by the planetary gear 306 deflection, further improving the stability of the stranded wire assembly and ensuring the accuracy of wire guidance.

[0028] Several planetary carriers 304 are equidistantly mounted around the inner wall of the slide groove 303. Each planetary carrier 304 corresponds to a guide cylinder 305, and the end of the planetary carrier 304 is fixed to the outer wall of the guide cylinder 305. By sliding the planetary carriers 304 in the slide groove 303 and fixing them to the guide cylinder 305, the guide cylinder 305 can be driven to revolve synchronously with the planetary gears 306. At the same time, the limiting function of the slide groove 303 can prevent the guide cylinder 305 from radially shaking during high-speed operation. This structure makes the movement trajectory of the guide cylinder 305 more precise, reduces friction and vibration with the wire, and the sliding cooperation between the planetary carriers 304 and the fixed frame 302 avoids the transmission of vibration caused by rigid connection, indirectly ensuring the stability of the spindle 104.

[0029] Please see Figure 5 A servo motor 203 is installed on the upper inner wall edge of the protective cover 201. A gear 204 is fixedly connected to the output end of the servo motor 203, and the gear 204 meshes with the external teeth of the carrier wheel 307. The servo motor 203 drives the carrier wheel 307 to rotate through the gear 204. This external drive method completely separates the power source from the fixed spindle 104, avoiding the direct transmission of motor vibration to the spindle 104 and the core stranding components. This meets the advantages of "separate drive to reduce vibration transmission". At the same time, the servo motor 203 can precisely control the speed of the carrier wheel 307, ensuring a stable transmission ratio between the carrier wheel 307 and the planetary gear 306, thereby ensuring uniform stranding pitch.

[0030] Working principle: Power input stage: Start the servo motor 203 at the inner edge of the upper end of the protective cover 201, and its output end drives the fixed gear 204 to rotate; because the gear 204 meshes with the external teeth of the frame wheel 307, the power is transmitted to the frame wheel 307, so that the frame wheel 307 rotates stably around the inner wall of the rotating frame 202 of the protective component. During this process, the servo motor 203 can precisely control the speed to ensure that the transmission ratio between the frame wheel 307 and the subsequent components is stable, laying the foundation for uniform strand pitch.

[0031] During the transmission engagement stage: The rotating carrier wheel 307 meshes with several planetary gears 306 that are equidistantly arranged around it via its internal teeth, driving the planetary gears 306 to move. Since the planetary gears 306 simultaneously mesh with the sun gear 301 fixed to the outer wall of the main shaft 104, and the main shaft 104 is doubly fixed by the damping sleeve 103 in the mounting hole 102 of the fixed seat 101 and the limiting rod 105 that fits against the edge limiting sleeve 106 of the fixed seat 101, it remains stationary. Therefore, the planetary gears 306... 6. Under meshing action, the planet gear 306 revolves stably around the sun gear 301. When the planet gear 306 revolves, the guide cylinder 305, which is rotatably mounted on its inner wall, revolves synchronously with it. At the same time, the planet carrier 304, which is fixed to the outer wall of the guide cylinder 305, slides along the inner wall of the groove 303 opened in the right end fixed frame 302 of the sun gear 301. The groove 303 provides a directional track for the planet carrier 304, avoids radial swaying of the guide cylinder 305, and ensures that the orbital trajectory of the guide cylinder 305 is accurate.

[0032] Wire guiding and stranding stage: The wire is first initially guided by guide cylinder 305, and then passes through guide cylinder 309 which is fixed in the slots 308 at both ends of the frame wheel 307; with the rotation of the frame wheel 307 and the revolution of guide cylinder 305, the wire is stranded according to the set pitch under the synergistic action of the two sets of guiding components. During this process, the vibration damping pad 107 at the upper center of the fixed seat 101 absorbs the running vibration of the protective cover 201 and the rotating frame 202, and the vibration damping sleeve 103 absorbs the slight vibration of the main shaft 104. The double vibration damping avoids the vibration from being transmitted to the core components, further ensuring the accuracy of wire guiding and the uniformity of stranding pitch.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-speed double-pitch electronic stranding machine, comprising a carrier component, characterized in that, The load-bearing component includes a fixed base (101), a protective component is installed on the upper end of the fixed base (101), the protective component includes a rotating frame (202), a main shaft (104) is fixedly installed on the inner wall of the fixed base (101), a stranded wire assembly is installed on the outer wall of the main shaft (104), the stranded wire assembly includes a sun tooth (301) fixedly connected to the outer wall of the main shaft (104), a number of planetary gears (306) are meshed on the outer wall of the sun tooth (301) and rotated around it, a guide cylinder (305) is rotatably installed on the inner wall of each planetary gear (306), the stranded wire assembly also includes a frame wheel (307) rotatably installed on the inner wall of the rotating frame (202), the inner teeth of the frame wheel (307) mesh with the planetary gears (306), a number of slots (308) are opened through the left and right ends of the frame wheel (307) and rotated around it around it at equal intervals, a guide cylinder (309) is fixedly connected in each slot (308).

2. The high-speed double-pitch electronic stranding machine according to claim 1, characterized in that, The load-bearing component also includes mounting holes (102) that are opened through the inner walls of the left and right ends of the fixed base (101). The inner wall of the mounting hole (102) is fixed with a damping sleeve (103), and the inner wall of the damping sleeve (103) is fixed with a main shaft (104).

3. The high-speed double-pitch electronic stranding machine according to claim 2, characterized in that, A limiting rod (105) is fixedly connected to the outer edge of the main shaft (104), and a limiting sleeve (106) is fixedly connected to the upper edge of the fixed seat (101). The inner wall of the limiting sleeve (106) is in contact with the outer wall of the limiting rod (105).

4. The high-speed double-pitch electronic stranding machine according to claim 1, characterized in that, The upper center of the fixed base (101) is fixedly connected to a vibration damping pad (107), and the protective assembly also includes a protective cover (201) fixedly connected to the upper end of the vibration damping pad (107), and a rotating frame (202) is fixedly connected to the inner wall of the protective cover (201).

5. The high-speed double-pitch electronic stranding machine according to claim 1, characterized in that, The stranded wire assembly also includes a fixing bracket (302) fixed to the right end of the sun tooth (301), and the right end of the fixing bracket (302) has a groove (303) that surrounds the circumference.

6. The high-speed double-pitch electronic stranding machine according to claim 5, characterized in that, The inner wall of the slide (303) is slidably fitted with several planetary carriers (304) that are equidistantly arranged around the perimeter. Each planetary carrier (304) corresponds to a guide tube (305) and the end of the planetary carrier (304) is fixed to the outer wall of the guide tube (305).

7. The high-speed double-pitch electronic stranding machine according to claim 4, characterized in that, A servo motor (203) is installed at the upper inner edge of the protective cover (201). A gear (204) is fixed to the output end of the servo motor (203). The gear (204) meshes with the outer teeth of the frame wheel (307).

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