Adjusting type power cable pair twisting mechanism

Abstract

The invention relates to the technical field of cables, in particular to an adjustable power cable pair twisting mechanism which comprises a pair twisting unit, a transmission unit and a tooth type power unit. The pair twisting unit achieves integral uniform twisting of cables through synchronous rotation of multiple sets of cable winding rollers, the transmission unit controls continuous transmission of the cables through cooperation of upper and lower positioning wheels and transmission wheels, and the tooth type power unit drives pair twisting and transmission to operate synchronously through linkage of a gear assembly. The adjustable roller frame structure is adopted, rapid disassembly and assembly and distance adjustment of the cable winding rollers are supported, and it is ensured that cables are evenly discharged in cooperation with the transmission guide ring; the transmission assembly controls the transmission speed to be matched with the pair twisting speed through the gear ratio, the problems that in the prior art, pair twisting is not uniform, the transmission efficiency is low, and the adjusting capacity is insufficient are solved, and the device is particularly suitable for efficient machining of overall pair-twisted cables.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and specifically to an adjustable power cable twisting mechanism. Background Art

[0002] The twisting of power cables is a process of twisting two insulated conductors together to reduce the effects of electromagnetic radiation and external electromagnetic interference. Through twisting, twisted pair cables can be produced, which have better anti-bending ability and anti-electromagnetic interference ability for electronic signals. The twisting method of the cable twisting device depends on the design requirements of the cable, and is usually divided into two modes: overall twisting and local (connection end) twisting.

[0003] Overall twisting: The conductors of the entire cable are evenly twisted from one end to the other end. It has anti-interference throughout its entire length, and the signal transmission is more stable. The mechanical strength is uniform, and the bending resistance performance is good; Local twisting: Only short-distance twisting is performed on specific parts of the cable (such as near the two ends of the connector), and the remaining parts are parallel conductors. Connector end processing: Some cables are locally twisted before terminating the plug (such as RJ45) to match the interface impedance. Special shielding requirements: For example, medical device cables are only locally twisted at sensitive parts to reduce interference.

[0004] For local twisting, generally, it can be wound and connected manually or with the help of a simple removal tool during connection. However, for overall twisting, generally, a professional twisting device is required to operate it. For example, in the existing patent with the authorization number: CN109326388B, a disclosed power cable twisting device includes a twisting drive device, a wire twisting device, and a wire winding device. The twisting drive device is used to provide power for the wire twisting device, and the twisting is completed through the rotation of the wire twisting device. The wire winding device is used to complete the winding of the twisted cable; the wire winding device includes a wire winding drive mechanism, a wire winding disc device, and a gearbox. The wire winding device can complete the linkage action of the rotation and reciprocating horizontal movement of the wire winding disc through the gearbox and the belt drive mechanism. After analyzing this device, it is found that during its operation, for the cables before and after twisting, there is a lack of effective transmission ability, and during the twisting process, the cable cannot be fully and evenly wound, and the overall adjustment ability is weak; Therefore, in view of the above existing problems, the present technical solution proposes an adjustable power cable twisting mechanism. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable power cable twisting mechanism to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: An adjustable power cable twisting mechanism includes a twisting unit and a transmission unit; the transmission unit controls the continuous transmission and movement of the power cable before and after twisting, and the twisting unit performs rotary winding and overall twisting connection on the power cable in the moving state. A set of toothed power units are commonly connected to the same end of the twisting unit and the transmission unit. The toothed power unit drives the twisting unit and the transmission unit to operate synchronously through the cooperation of various gears; The twisting unit includes at least two cable winding rollers arranged in a side-mounted circular and equally spaced manner. The power cables to be twisted are wound on the cable winding rollers. The starting ends of the power cables on the cable winding rollers pass through the transmission unit and are distributed. That is, under the positioning transmission of the transmission unit, multiple groups of power cables are twisted in a mobile manner. Both ends of the cable winding roller are detachably and rotatably connected to a roller frame. A rotating assembly is commonly connected to the middle of one side of the roller frame. One side of the rotating assembly is connected to the toothed power unit. That is, under the drive of the toothed power unit, the rotating assembly is controlled to drive all the cable winding rollers to rotate annularly. At the same time, under the rotating connection between the cable winding roller and the roller frame, the power cable on the cable winding roller can be freely discharged and released toward the transmission unit side; The transmission unit includes two upper positioning wheels and two lower transmission wheels arranged longitudinally at intervals. A circle of wheel grooves is provided on the outer walls of the circumferences of the upper positioning wheels and the lower transmission wheels. The cables to be twisted are simultaneously placed in the wheel grooves between the upper positioning wheels and the lower transmission wheels. The upper positioning wheel presses down, and the lower transmission wheel supports to position it. At the same time, under the rotation of the cable winding roller at the release end of the power cable, it is wound and twisted. Then, under the rotation of the lower transmission wheel, the twisted power cable is continuously transmitted backward, thereby realizing mobile twisting. A transmission assembly is connected outward from the middle of one side of the lower transmission wheel. The end of the transmission assembly is connected to the toothed power unit. That is, while the toothed power unit drives the rotating assembly to control the rotation of the cable winding roller, it drives the transmission assembly to operate, drives the lower transmission wheel to rotate, and drives the power cable to move and transfer; The toothed power unit includes a main servo motor. The output end of the main servo motor is connected to a driving shaft. The driving shaft extends backward to the central position between multiple cable winding rollers. A gear assembly is arranged on the driving shaft. The gear assembly is respectively connected to the rotating assembly and the transmission assembly. By means of the size distribution of the gears in the gear assembly and the requirements of the speed to be output, the cooperation operation of the rotating assembly and the transmission assembly is controlled, so as to perform efficient and automatic transmission and twisting on the power cable to be twisted.

[0007] Compared with the prior art, the beneficial effects of the present invention are: through the synchronous rotation of multiple cable winding rollers around the driving shaft and the guidance of the transmission guide ring, it is ensured that the cable stranding is uniform; Through the cooperation of the upper and lower stepping wheels and the gear transmission group, the accurate matching of the continuous transmission and twisting speed of the cable is realized; Through the telescopic structure of the roller frame to support the quick disassembly and assembly of the cable reel, and the screw barrel-screw mechanism is convenient for adjusting the distance; Through the multi-stage linkage design of the gear set and the transmission belt, the power loss is reduced and the running stability is improved; Enhance the mechanical strength of the cable and the signal anti-interference ability through the overall twisted pair mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic three-dimensional structure diagram of an adjustable power cable twisting mechanism.

[0009] Figure 2 It is a schematic front view structure diagram of an adjustable power cable twisting mechanism.

[0010] Figure 3 It is a schematic top view structure diagram of an adjustable power cable twisting mechanism.

[0011] Figure 4 It is Figure 1 The enlarged structure diagram of A in

[0012] Figure 5 It is Figure 1 The enlarged structure diagram of B in

[0013] Figure 6 It is Figure 3 The enlarged structure diagram of C in

[0014] Figure 7 It is Figure 3 The enlarged structure diagram of D in

[0015] Wherein: the main servo motor 10, the driving shaft 11, the cable winding roller 12, the gear disc I 13, the gear disc II 14, the gear disc III 15, the gear disc IV 16, the middle gear 17, the side rotating gear I 18, the side rotating gear II 19, the shaft seat 20, the middle sleeve 21, the side sleeve 22, the connecting rod 23, the roller frame 24, the upper positioning wheel 26, the lower transmission wheel 27, the wheel groove 28, the dial 29, the transmission guiding ring 30, the ring rod 31, the transmission driving tooth II 32, the transmission driving tooth I 33, the transmission rod 34, the transmission belt III 35, the transmission belt II 36, the transmission belt I 37, the transmission shaft II 38, the tooth rod 39, the bevel gear I 40, the bevel gear II 41, the connecting shaft 42, the screw barrel 43, the screw rod 44, the clamping hole 45, the transmission shaft III 46. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0018] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0019] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0020] Please refer to Figures 1-4 , an adjustable power cable twisting mechanism, comprising a twisting unit and a transmission unit; the transmission unit controls the continuous transmission and movement of the power cable before and after twisting, and the twisting unit performs a rotational winding and integral twisting connection on the power cable in a moving state. A set of toothed power units are commonly connected to the same end of the twisting unit and the transmission unit. Through the cooperation of various gears, the toothed power unit drives the twisting unit and the transmission unit to operate synchronously; The twisting unit includes at least two sets of cable winding rollers 12 arranged in a side-mounted circular and equally spaced manner. The power cable to be twisted is wound on the cable winding rollers 12. The starting end of the power cable on the cable winding rollers 12 passes through the transmission unit and is distributed. That is, under the positioning transmission of the transmission unit, multiple groups of power cables are twisted in a mobile manner. The two ends of the cable winding rollers 12 are detachably and rotatably connected to the roller frames 24. A rotating assembly is commonly connected to the middle of one side of the roller frames 24. One side of the rotating assembly is connected to the toothed power unit. That is, under the drive of the toothed power unit, the rotating assembly is controlled to drive all the cable winding rollers 12 to rotate annularly. At the same time, under the rotating connection between the cable winding rollers 12 and the roller frames 24, the power cable on the cable winding rollers 12 can be freely discharged and released toward the side of the transmission unit; The transmission unit includes two sets of upper positioning wheels 26 and lower transmission wheels 27 that are longitudinally spaced apart. A circumferential groove 28 is provided on the outer circumferential walls of the upper positioning wheels 26 and the lower transmission wheels 27. The cables to be twisted are placed in the groove 28 between the upper positioning wheels 26 and the lower transmission wheels 27 at the same time. The upper positioning wheels 26 press down, and the lower transmission wheels 27 support to position them. At the same time, with the rotation of the cable take-up roller 12 at the release end of the power cable, it is wound and twisted. Then, with the rotation of the lower transmission wheels 27, the twisted power cable is continuously transmitted backward, thus realizing mobile twisting. A transmission component is connected outwardly in the middle of one side of the lower transmission wheels 27, and the end of the transmission component is connected to the toothed power unit. That is, while the toothed power unit drives the rotating component to control the rotation of the cable take-up roller 12, it drives the transmission component to operate, drives the lower transmission wheels 27 to rotate, and drives the power cable to move and transfer; The toothed power unit includes a main servo motor 10. The output end of the main servo motor 10 is connected to a driving shaft 11. The driving shaft 11 extends backward to the central position between multiple cable take-up rollers 12. A gear assembly is provided on the driving shaft 11. The gear assembly is respectively connected to the rotating component and the transmission component. By means of the size distribution of the gears in the gear assembly and the requirements of the speed to be output, the cooperation operation of the rotating component and the transmission component is controlled, so as to efficiently and automatically transmit and twist the power cable to be twisted.

[0021] In the embodiment of the present invention, a plurality of rubber-made deflector plates 29 are annularly and equally spaced on the inner side of the groove 28. When the lower transmission wheels 27 rotate, the contact friction resistance between the deflector plates 29 and the cables is utilized to drive the cables before and after twisting to be stably transmitted outward; A wheel shaft is installed in the middle of the upper positioning wheels 26, and the wheel shaft movably passes through a shaft seat 20. That is, with the support of the shaft seat 20, the upper positioning wheels 26 are positioned; Refer to Figure 5 , on one side of each group of cable take-up rollers 12 relative to the roller frame 24, a group of transmission guide rings 30 are arranged at intervals. One side of the transmission guide rings 30 facing the end of the driving shaft 11 is commonly connected by a ring rod 31 to a connecting block installed at the end of the driving shaft 11. When the driving shaft 11 rotates, it synchronously drives the connecting block to control the transmission guide rings 30 at the end of the ring rod 31 to rotate. At the same time, the cable take-up rollers 12 are connected by the rotating component, and it is controlled that their rotation speed around the driving shaft 11 is the same as that of the cable take-up rollers 12. That is, it is controlled that the transmission guide rings 30 are always placed on one side of the cable take-up rollers 12 to stably guide the output power cable; Refer to Figure 7, roller shafts are installed at both ends of the cable winding roller 12. A set of roller plates are arranged at the ends of the roller shafts in a plug-in manner. A clamping hole 45 is provided at the center of the roller plates. The roller shafts are inserted into the clamping hole 45. The centers of the outer sides of the two sets of roller plates are connected to both ends of the roller frame 24. The roller frame 24 is arranged in a U-shaped structure. A telescopic structure is provided on a section parallel to the axis of the cable winding roller 12. The telescopic structure is used to control the distance between the two roller plates on both sides, so as to facilitate the installation or disassembly of the cable winding roller 12 therein, and then replace the power cable; Specifically, the telescopic structure includes two screw rods 44 and a screw barrel 43. The two screw rods 44 are respectively threadedly connected to both ends of the screw barrel 43. The end of the screw rod 44 away from the screw barrel 43 is connected to the corresponding part on the roller frame 24. That is, by rotating the screw barrel 43, the depth of the two screw rods 44 placed therein is adjusted, and then the distance between the two roller plates is adjusted to realize the installation and disassembly of the cable winding roller 12.

[0022] In an example of the present invention, the gear assembly includes a first gear disk 13 and a fourth gear disk 16 that are spaced apart and installed on the driving shaft 11. A second gear disk 14 and a third gear disk 15 are respectively meshed with one side of the first gear disk 13 and the fourth gear disk 16. A connecting shaft 42 is installed in the middle of the second gear disk 14 and the third gear disk 15 and is connected through the connecting shaft 42. Both the driving shaft 11 and the connecting shaft 42 are provided with shaft seats 20 for positioning and supporting them; The rotating assembly includes a middle gear 17 installed on the driving shaft 11 on one side of the fourth gear disk 16. A uniformly distributed first side rotating gear 18 and a second side rotating gear 19 are meshed with the outer circumference of the middle gear 17 (only two sets of side gears, the first side rotating gear 18 and the second side rotating gear 19, are schematically shown in this technical solution. Specifically, when designing, the corresponding number of side gears can be set according to the number of cables to be twisted). Gear rods are installed in the middle of the sides of the first side rotating gear 18 and the second side rotating gear 19 facing the cable winding roller 12. The upper ends of the gear rods are fixedly connected to the roller frame 24. Side sleeves 22 are movably sleeved on the gear rods. At the same time, a middle sleeve 21 is sleeved on the corresponding driving shaft 11 of the side sleeve 22. The middle sleeve 21 and the side sleeve 22 are connected by a connecting rod 23. That is, when the middle gear 17 rotates, it synchronously drives the first side rotating gear 18 and the second side rotating gear 19 to rotate around their meshing points. At this time, under the connection of the gear rods, the cable winding roller 12 at the end of the roller frame 24 is also driven to rotate around the driving shaft 11, so as to realize the control of multiple cable winding rollers 12 to rotate and drive the power cables output therefrom to perform a twisting operation; Refer to Figure 6, the transmission assembly includes a bevel gear II 41 mounted on a connecting shaft 42 between a gear disk II 14 and a gear disk III 15. On one side of the bevel gear II 41, a bevel gear I 40 is vertically engaged. On the side of the bevel gear I 40 away from the connecting shaft 42, a rack 39 is installed. The rack 39 is connected downward to a transmission shaft III 46 through the gear disk III 15. On the side of the transmission shaft III 46 facing the lower transmission wheel 27, a transmission shaft II 38 is connected through a horizontal transmission belt II 36. The transmission shaft II 38 is connected upward to a transmission rod 34 through a transmission belt III 35. At the positions of the rack 39, the transmission shaft III 46, and the transmission shaft II 38 corresponding to the transmission belt I 37, the transmission belt II 36, and the transmission belt III 35, pulleys are provided to maintain the smooth transmission between the transmission belt III 35, the transmission belt II 36, the transmission belt I 37 and the transmission shaft II 38, the transmission shaft III 46, and the rack 39; At the end of the transmission rod 34, a transmission driving gear I 33 is installed. The transmission driving gear I 33 is engaged upward with a transmission driving gear II 32. The center of the side wall of the transmission driving gear II 32 is connected to the center of the lower transmission wheel 27 through a coupling shaft. Thus, under the transmission of the bevel gear II 41, the bevel gear I 40, the rack 39, the transmission shaft III 46, the transmission shaft II 38, the transmission rod 34, the transmission driving gear I 33, and the transmission driving gear II 32, the lower transmission wheel 27 is driven to rotate, and the control cable is transmitted backward; It should be noted that the gear radius of the transmission driving gear II 32 is larger than that of the transmission driving gear I 33, that is, the rotation speed of the transmission driving gear II 32 is less than that of the transmission driving gear I 33, that is, to ensure that the rotation speed of the transmission driving gear II 32 is less than that of the transmission driving gear I 33, so as to accurately move and twist the control cable to prevent its too fast speed from affecting the quality of twisting; At the same time, on the transmission shaft III 46, the transmission shaft II 38, and the transmission rod 34, shaft seats 20 are movably provided to maintain the smooth support and operation of the above structures.

[0023] The working principle of the present invention is as follows: At the idle place of the device, all the above-mentioned driving parts, which refer to power elements, electrical parts, and the adapted power supply, are connected through wires, and the electrical connection is completed in the order of the working sequence of each electrical part. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and will not explain the electrical control. The specific steps are as follows: Install the cable to be twisted and wound on the cable winding roller 12, and adjust and fix the distance between the roller frames 24; Start the main servo motor 10 to drive the driving shaft 11 to rotate, and synchronously drive the rotating assembly and the transmission assembly through the gear disk I 13 and the gear disk IV 16; The cable winding roller 12 revolves around the driving shaft and rotates itself to release the cable, and the transmission guiding ring 30 guides the cable into the transmission unit; The cable is embedded in the groove 28 of the upper positioning wheel 26 and the lower stepping wheel 27, and the dial 29 pushes the cable backward; The middle gear 17 drives the rotating gear on the driving side to drive the cable winding roller to rotate and twist, and at the same time, the transmission component drives the lower stepping wheel 27 to perform stepping transmission to complete the overall twisting; The twisted cable enters the winding device through the transmission guide ring to achieve continuous processing.

[0024] The above has described the preferred embodiments of the present invention in detail. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A regulated pair twisting mechanism for power cables, characterized in that, It includes a twisted pair unit and a transmission unit; the transmission unit controls the continuous transmission and movement of the power cable before and after twisting, and the twisted pair unit performs a rotary winding type overall twisted pair connection on the power cable in the moving state. A set of toothed power units are commonly connected to the same end of the twisted pair unit and the transmission unit. Through the cooperation of various gears, the toothed power unit drives the twisted pair unit and the transmission unit to operate synchronously; The twisted pair unit includes at least two cable winding rollers (12) arranged in a side-mounted circular and equally spaced manner. The power cable to be twisted is wound on the cable winding rollers (12). The starting end of the power cable on the cable winding rollers (12) passes through the transmission unit and is distributed. Both ends of the cable winding rollers (12) are detachably and rotatably connected to a roller frame (24). A rotary assembly is commonly connected to the middle of one side of the roller frame (24), and one side of the rotary assembly is connected to the toothed power unit; The transmission unit includes two upper positioning wheels (26) and a lower transmission wheel (27) longitudinally spaced apart. A circular groove (28) is formed on the outer circumferential walls of the upper positioning wheels (26) and the lower transmission wheel (27). The cable to be twisted is placed in the circular groove (28) between the upper positioning wheels (26) and the lower transmission wheel (27). A transmission assembly is connected outward from the middle of one side of the lower transmission wheel (27), and the end of the transmission assembly is connected to the toothed power unit; The toothed power unit includes a main servo motor (10). The output end of the main servo motor (10) is connected to a driving shaft (11). The driving shaft (11) extends backward to the central position between multiple cable winding rollers (12). A gear assembly is arranged on the driving shaft (11), and the gear assembly is respectively connected to the rotary assembly and the transmission assembly.

2. The adjustable twisted pair mechanism for power cables according to claim 1, characterized in that, A plurality of rubber-made baffle plates (29) are annularly and equally spacedly installed inside the circular groove (28). A wheel shaft is installed in the middle of the upper positioning wheel (26), and the wheel shaft movably passes through a shaft seat (20).

3. The adjustable twisted pair mechanism for power cables according to claim 2, wherein, A set of transmission guide rings (30) are spacedly arranged on one side of each cable winding roller (12) relative to the roller frame (24). One side of the transmission guide ring (30) facing the end of the driving shaft (11) is commonly connected to a connecting block installed at the end of the driving shaft (11) through a ring rod (31). When the driving shaft (11) rotates, it synchronously drives the connecting block to control the transmission guide ring (30) at the end of the ring rod (31) to rotate. Under the connection of the rotary assembly, the cable winding roller (12) is controlled to have the same rotation speed as the cable winding roller (12) around the driving shaft (11).

4. The adjustable twisted pair mechanism for power cables according to claim 3, characterized in that, Roller shafts are installed at both ends of the cable winding roller (12). A set of roller plates are pluggably arranged at the ends of the roller shafts. A clamping hole (45) is formed at the center of the roller plates. The roller shafts are inserted into the clamping holes (45). The centers of the outer sides of the two roller plates are connected to both ends of the roller frame (24). The roller frame (24) is arranged in a U-shaped structure, and a telescopic structure is arranged on a section parallel to the axis of the cable winding roller (12). The telescopic structure is used to control the distance between the two roller plates.

5. The adjustable twisted pair mechanism for power cables according to claim 4, characterized in that, The telescopic structure includes two screw rods (44) and a screw barrel (43). The two screw rods (44) are respectively threadedly connected to both ends of the screw barrel (43), and the end of the screw rod (44) away from the screw barrel (43) is connected to the corresponding part on the roller frame (24).

6. The adjustable twisted pair mechanism for power cables according to claim 5, wherein, The gear assembly includes a first gear disk (13) and a fourth gear disk (16) which are installed on the driving shaft (11) at intervals. A second gear disk (14) and a third gear disk (15) are respectively meshed with one side of the first gear disk (13) and the fourth gear disk (16). A connecting shaft (42) is installed in the middle of the second gear disk (14) and the third gear disk (15).

7. The adjustable power cable twisting mechanism according to claim 6, characterized in that, The rotating assembly includes a middle gear (17) installed on the driving shaft (11) on one side of the fourth gear disk (16). Uniformly distributed first side rotating gears (18) and second side rotating gears (19) are meshed with the outer circumference of the middle gear (17). Gear rods are installed in the middle of one side of the first side rotating gears (18) and the second side rotating gears (19) facing the cable winding roller (12). The upper end of the gear rod is fixedly connected to the roller frame (24). A side sleeve (22) is movably sleeved on the gear rod. A middle sleeve (21) is sleeved on the corresponding driving shaft (11) of the side sleeve (22). The middle sleeve (21) and the side sleeve (22) are connected by a connecting rod (23).

8. The adjustable twisted pair mechanism for power cables according to claim 7, wherein The transmission assembly includes a second bevel gear (41) installed on the connecting shaft (42) between the second gear disk (14) and the third gear disk (15). A first bevel gear (40) is vertically meshed with one side of the second bevel gear (41). A toothed rod (39) is installed on the side of the first bevel gear (40) away from the connecting shaft (42). The toothed rod (39) is connected to a third transmission shaft (46) downward through the third gear disk (15). A second transmission shaft (38) is connected to one side of the third transmission shaft (46) facing the lower transmission wheel (27) through a horizontal second transmission belt (36). A transmission rod (34) is connected to the second transmission shaft (38) upward through a third transmission belt (35). Belt pulleys are arranged at the positions corresponding to the first transmission belt (37), the second transmission belt (36), and the third transmission belt (35) on the toothed rod (39), the third transmission shaft (46), and the second transmission shaft (38).

9. The adjustable twisted pair mechanism for power cables according to claim 8, characterized in that, A first transmission driving tooth (33) is installed at the end of the transmission rod (34). A second transmission driving tooth (32) is meshed with the first transmission driving tooth (33) upward. The center of the side wall of the second transmission driving tooth (32) is connected to the center of the lower transmission wheel (27) through a coupling shaft.

10. The adjustable power cable twisting mechanism according to claim 9, wherein The gear radius of the second transmission driving tooth (32) is larger than that of the first transmission driving tooth (33).

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