Speed-adjustable threading device suitable for aloft work and threading method

Abstract

The invention relates to a speed-adjustable threading device and threading method suitable for aloft work, and relates to the technical field of speed-adjustable threading, the speed-adjustable threading device comprises a handheld frame, a mounting plate, a first guide wheel and a second guide wheel, the mounting plate is mounted on the handheld frame, a radial adjusting device is arranged on the mounting plate, and the first guide wheel and the second guide wheel are arranged on the mounting plate. The first guide wheel is installed on a radial adjusting device, the second guide wheel is installed on the installation plate, a synchronous driving device is installed on the installation plate and used for driving the first guide wheel and the second guide wheel to rotate synchronously, and a display screen used for displaying the threading speed is installed on the handheld frame. The display screen is electrically connected with the synchronous driving device, and the handheld frame is provided with a wire loading frame used for loading wires. The cable threading device has the effect of improving the threading efficiency of cables with different diameters.

Description

Technical Field

[0001] The present application relates to the field of adjustable speed threading technology, and in particular to an adjustable speed threading device and a threading method suitable for aerial work. Background Art

[0002] Aerial work is an important part of industries such as construction and power maintenance, especially in bridge construction, high-rise building construction and power line installation, which is of great significance to improving project quality and safety. In order to ensure construction safety and improve work efficiency, various aerial work equipment and technologies have emerged, promoting the rapid development of the industry. However, in the actual operation process, many links still rely on traditional manual methods to complete, especially in some tasks that require fine control. In response to the threading needs in aerial work, the commonly used solutions currently include manual pulling and hand winch. Manual pulling mainly relies on manpower to directly pull the cable for threading, while the hand winch uses a simple mechanical device to replace part of the manual labor. In addition, simple electric or hydraulic drive equipment is also used for threading in some special scenarios. Although these methods can meet the basic construction requirements to a certain extent, they have many limitations in practical applications. In particular, manual pulling and hand-cranked winches are not only labor-intensive and inefficient, but may also cause workers to be overworked or even cause safety accidents. When dealing with cables of different materials and diameters, these traditional threading methods are difficult to adjust flexibly and cannot achieve the best working state, thus affecting the overall work progress and quality. Therefore, it is urgent to develop a more efficient and adaptable threading device to improve this situation. Summary of the invention

[0003] In order to improve the threading efficiency when dealing with cables of different diameters, the present application provides an adjustable speed threading device and a threading method suitable for aerial operations.

[0004] The application provides a speed-adjustable threading device suitable for aerial work, which adopts the following technical solution: A speed-adjustable threading device suitable for aerial work comprises a handheld frame, a mounting plate, a first guide wheel and a second guide wheel, wherein the mounting plate is mounted on the handheld frame, a radial adjustment device is provided on the mounting plate, the first guide wheel is mounted on the radial adjustment device, the second guide wheel is mounted on the mounting plate, a synchronous drive device is mounted on the mounting plate, the synchronous drive device is used to drive the first guide wheel and the second guide wheel to rotate synchronously, a display screen for displaying the threading speed is mounted on the handheld frame, the display screen is electrically connected to the synchronous drive device, and a wire loading frame for loading wires is mounted on the handheld frame.

[0005] By adopting the above technical solution, the mounting plate is fixedly connected to the handheld frame, the first guide wheel is installed on the mounting plate, the second guide wheel is installed on the radial adjustment device, and then the first guide wheel and the second guide wheel are driven to rotate synchronously by the synchronous driving device, and then the real-time display and adjustment of the threading speed are realized through the display screen electrically connected to the synchronous driving device, thereby improving the threading efficiency. At the same time, the setting of the radial adjustment device can adjust the distance between the first guide wheel and the second guide wheel, thereby improving the threading efficiency when facing cables with different diameters.

[0006] In a specific feasible implementation scheme, the synchronous drive device includes a drive motor, a drive rod, an active bevel gear and an auxiliary bevel gear, the drive motor is mounted on the lower plate surface of the mounting plate, the drive rod is rotatably connected to the mounting plate, and one end is fixedly connected to the output shaft of the drive motor, two active bevel gears are provided, and the active bevel gears are mounted on both ends of the drive rod, the first guide wheel and the second guide wheel are rotatably connected to the upper plate surface of the mounting plate, and one end extends through the mounting plate to the lower plate surface, and two auxiliary bevel gears are provided, and the two auxiliary bevel gears are respectively mounted on the first guide wheel and the second guide wheel extending to one end of the lower plate surface, and the two auxiliary bevel gears are respectively meshed with the active bevel gears at both ends.

[0007] By adopting the above technical solution, the driving rod is rotatably connected to the mounting plate, the active bevel gear is installed at both ends of the driving rod, the output shaft of the driving motor is connected to the driving rod, and the two auxiliary bevel gears are respectively installed on the first guide wheel and the second guide wheel, and are respectively meshed with the two active bevel gears, thereby realizing the synchronous rotation of the first guide wheel and the second guide wheel, and realizing stable transportation of the cable.

[0008] In a specific feasible implementation scheme, the radial adjustment device includes an adjusting screw and a moving block, the moving block is slidably connected to the mounting plate, a first threaded hole is provided on the mounting plate, one end of the adjusting screw passes through the first threaded hole and is rotatably connected to the moving block, the adjusting screw is threadedly connected to the mounting plate, the active bevel gear is fixedly connected to the moving block, a limiting block is provided on the active bevel gear, a limiting groove is provided on the driving rod along the length direction, and the limiting block is slidably connected in the limiting groove.

[0009] By adopting the above technical scheme, the moving block is slidably connected to the mounting plate, and the mounting plate is provided with a first threaded hole, one end of the adjusting screw rod passes through the first threaded hole and is rotatably connected to the moving block, the adjusting screw rod is threadedly connected to the mounting plate, and a limiting groove is provided on the driving rod, and the limiting block arranged on the active bevel gear is slidably connected in the limiting groove, so as to rotate the adjusting screw rod, and the adjusting screw rod moves relative to the mounting plate, driving the moving block to move on the mounting plate, adjusting the spacing between the first guide wheel and the second guide wheel, and at the same time, the cooperation of the limiting block and the limiting groove can enable the active bevel gear to slide relative to the driving rod, and can drive the active bevel gear to rotate through the driving rod.

[0010] In a specific implementation scheme, a plurality of the limit blocks are provided, a plurality of the limit slots are provided corresponding to the number of limit slots, and a plurality of limit slots are provided on the circumferential portion of the drive rod, and a plurality of the limit block positions are provided corresponding to the limit blocks.

[0011] By adopting the above technical solution, the setting of several limit blocks and limit grooves enables the active bevel gear and the active bevel gear to maintain a stable position relationship during the adjustment process, avoiding deviation or shaking during the driving process, and ensuring the stability and reliability of the synchronous drive device.

[0012] In a specific possible implementation manner, an adjusting handwheel is installed at one end of the adjusting screw rod away from the moving block, and the adjusting handwheel is coaxially arranged with the adjusting screw rod.

[0013] By adopting the above technical solution, providing an adjustment handwheel can facilitate the operator to rotate the adjustment screw, thereby more conveniently adjusting the position of the first guide wheel, thereby improving the flexibility and efficiency of the cable threading process.

[0014] In a specific possible implementation manner, a plurality of guide rings are installed on the mounting plate.

[0015] By adopting the above technical solution, a number of guide rings are installed on the mounting plate, making the cable more stable and smooth during the threading process, effectively preventing the cable from deflecting or kinking during the threading process, and improving the threading accuracy and efficiency.

[0016] In a specific feasible implementation scheme, the wire loading rack includes a plurality of U-shaped rods and a limiting ring, wherein one end of the plurality of U-shaped rods is fixedly connected and the other end is mounted on the limiting ring, and the length of the rod shaft on one side where the plurality of U-shaped rods are connected to each other is longer than the length of the rod shaft on the side connected to the limiting ring.

[0017] By adopting the above technical solution, the cable loading rack is composed of a plurality of U-shaped rods and a limiting ring. One end of the U-shaped rod is fixedly connected, and the other end is installed on the limiting ring. The length of the rod body on the side where the U-shaped rods are connected to each other is longer than the length of the rod body on the side connected to the limiting ring, thereby achieving effective limiting and fixation of cables of different diameters, and improving the stability and applicability of cable loading.

[0018] In a specific feasible implementation scheme, it also includes a sliding sleeve, and the rod body on the longer side of the U-shaped rod is installed on the sliding sleeve, so as to connect one end of several U-shaped rods, and a limiting rod is provided on the handheld frame, and the sliding sleeve is sleeved on the limiting rod and can rotate relative to the limiting rod. A second threaded hole is opened on the limiting rod, and the sliding sleeve is limited by a limiting bolt threadedly connected in the second threaded hole.

[0019] In a specific implementation scheme, it also includes a first auxiliary wheel and a second auxiliary wheel, the first auxiliary wheel is mounted on the mounting plate along the threading direction corresponding to the first guide wheel, and the second auxiliary wheel is mounted on the mounting plate along the threading direction corresponding to the second guide wheel.

[0020] By adopting the above technical solution, the first auxiliary wheel and the second auxiliary wheel are added, which makes the cable threading process smoother, effectively reduces the friction of the cable between the first guide wheel and the second guide wheel, improves the threading efficiency, and reduces the risk of cable damage.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The mounting plate is fixedly connected to the handheld frame, the first guide wheel is mounted on the mounting plate, the second guide wheel is mounted on the radial adjustment device, and then the first guide wheel and the second guide wheel are driven to rotate synchronously by the synchronous driving device, and then the threading speed is displayed and adjusted in real time through the display screen electrically connected to the synchronous driving device, thereby improving the threading efficiency. At the same time, the radial adjustment device can adjust the distance between the first guide wheel and the second guide wheel, thereby improving the threading efficiency when facing cables with different diameters; 2. The driving rod is rotatably connected to the mounting plate, the active bevel gear and the active bevel gear are both mounted on the driving rod, the output shaft of the driving motor is connected to the driving rod, and the two auxiliary bevel gears are respectively mounted on the first guide wheel and the second guide wheel, and are respectively meshed with the active bevel gear and the active bevel gear, thereby realizing the synchronous rotation of the first guide wheel and the second guide wheel, and realizing the stable transmission of the cable; 3. The moving block is slidably connected to the mounting plate, and a first threaded hole is provided on the mounting plate. One end of the adjusting screw rod passes through the first threaded hole and is rotatably connected to the moving block. The adjusting screw rod is threadably connected to the mounting plate, and a limiting groove is provided on the driving rod. The limiting block arranged on the active bevel gear is slidably connected in the limiting groove, so as to rotate the adjusting screw rod, and the adjusting screw rod moves relative to the mounting plate, thereby driving the moving block to move on the mounting plate, and adjusting the spacing between the first guide wheel and the second guide wheel. At the same time, the cooperation of the limiting block and the limiting groove can enable the active bevel gear to slide relative to the driving rod, and can drive the active bevel gear to rotate through the driving rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0023] Figure 2 Schematic diagram of the structure of the radial adjustment device in the embodiment of the present application.

[0024] Figure 3 It is a cross-sectional view of an embodiment of the present application.

[0025] Figure 4 for Figure 2 Enlarged view of part A.

[0026] Figure 5 It is a schematic diagram of the structure of the wire rack in the embodiment of the present application.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Hand-held frame; 2. Mounting plate; 21. Limit rod; 3. First guide wheel; 4. Second guide wheel; 5. Radial adjustment device; 51. Adjusting screw rod; 52. Moving block; 53. Sliding block; 54. Adjusting hand wheel; 6. Synchronous driving device; 61. Driving motor; 62. Driving rod; 621. Limit block; 63. Active bevel gear; 631. Limit groove; 64. Auxiliary bevel gear; 7. Wire loading frame; 71. U-shaped rod; 72. Limit ring; 73. Sliding sleeve; 8. First auxiliary wheel; 9. Second auxiliary wheel; 10. Display screen; 11. Guide ring. DETAILED DESCRIPTION

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0030] The embodiment of the present application discloses a speed-adjustable threading device suitable for aerial work.

[0031] like Figure 1 As shown, the adjustable speed threading device suitable for aerial work includes a handheld frame 1, a mounting plate 2, a first guide wheel 3, a second guide wheel 4, a radial adjustment device 5 and a synchronous drive device 6. The mounting plate 2 is mounted on the handheld frame 1, the radial adjustment device 5 is mounted on the mounting plate 2, the first guide wheel 3 is mounted on the radial adjustment device 5, the second guide wheel 4 is mounted on the mounting plate 2, and the synchronous drive device 6 is mounted on the mounting plate 2. The first guide wheel 3 and the second guide wheel 4 are driven to rotate synchronously by the synchronous drive device 6. The handheld frame 1 is rotatably connected with a threading frame 7. A display screen 10 for displaying the threading speed is installed on the handheld frame 1. A control module is installed in the display screen 10. The display screen 10 is electrically connected to the drive motor 61, so that the speed of the drive motor 61 can be controlled by the control module in the display screen 10.

[0032] like Figures 2 to 4 As shown, the synchronous drive device 6 includes a drive motor 61, a drive rod 62, an active bevel gear 63 and an auxiliary bevel gear 64. The drive motor 61 is mounted on the lower plate surface of the mounting plate 2. The drive rod 62 is rotatably connected to the mounting plate 2, and one end of the drive rod 62 is fixedly connected to the output shaft of the drive motor 61. The active bevel gear 63 is fixedly connected to the moving block 52. A through hole is provided on the active bevel gear 63. The active bevel gear 63 is sleeved on the drive rod 62, and the two active bevel gears 63 are coaxially arranged with the drive rod 62. A plurality of limit blocks 631 are provided on the inner side wall of the through hole of the active bevel gear 63. The plurality of limit blocks 631 are arranged on the circumferential portion of the inner side wall of the through hole. The drive rod 62 is provided with a plurality of limit grooves 621 along the length direction. The limit grooves 6 21 quantity and position correspond to the setting of the limit block 631, the limit block 631 is slidably connected in the limit groove 621, the first guide wheel 3 is rotatably connected to the moving block 52, and one end of the first guide wheel 3 passes through the upper plate surface of the mounting plate 2 and extends to the lower plate surface of the mounting plate 2, one end of the second guide wheel 4 passes through the mounting plate 2 and extends to the lower plate surface of the mounting plate 2, and the second guide wheel 4 can rotate relative to the mounting plate 2, and two auxiliary bevel gears 64 are provided, and the two auxiliary bevel gears 64 are respectively installed on the first guide wheel 3 and the second guide wheel 4 are located at one end of the lower plate surface of the mounting plate 2, the auxiliary bevel gear 64 arranged on the first guide wheel 3 is meshed with the active bevel gear 63, and the auxiliary bevel gear 64 arranged on the second guide wheel 4 is meshed with the active bevel gear 63.

[0033] The driving rod 62 is rotatably connected to the mounting plate 2, the active bevel gear 63 is installed at both ends of the driving rod 62, the output shaft of the driving motor 61 is connected to the driving rod 62, and the two auxiliary bevel gears 64 are respectively installed on the first guide wheel 3 and the second guide wheel 4, and are respectively engaged with the two active bevel gears 63, thereby realizing the synchronous rotation of the first guide wheel 3 and the second guide wheel 4, and realizing stable transportation of the cable.

[0034] The radial adjustment device 5 includes an adjusting screw 51 and a moving block 52. The moving block 52 is slidably connected to the mounting plate 2. A first threaded hole is provided on the mounting plate 2. One end of the adjusting screw 51 passes through the first threaded hole and is rotatably connected to the moving block 52. The end of the adjusting screw 51 facing away from the moving block 52 is installed on the adjusting handwheel 54. The adjusting handwheel 54 is coaxially arranged with the adjusting screw 51, so that the adjusting screw 51 can be driven to rotate by rotating the adjusting handwheel 54. The adjusting screw 51 rotates relative to the mounting plate 2, and the first guide wheel 3 is driven to rotate through the mounting plate 2.

[0035] The moving block 52 is slidably connected to the mounting plate 2. A first threaded hole is provided on the mounting plate 2. One end of the adjusting screw rod 51 passes through the first threaded hole and is rotatably connected to the moving block 52. The adjusting screw rod 51 is threadedly connected to the mounting plate 2, and a limiting groove 621 is provided on the driving rod 62. The limiting block 631 arranged on the active bevel gear 63 is slidably connected in the limiting groove 621, so that the adjusting screw rod 51 is rotated, and the adjusting screw rod 51 moves relative to the mounting plate 2, driving the moving block 52 to move on the mounting plate 2, and adjusting the spacing between the first guide wheel 3 and the second guide wheel 4. At the same time, the cooperation of the limiting block 631 and the limiting groove 621 can enable the active bevel gear 63 to slide relative to the driving rod 62, and can drive the active bevel gear 63 to rotate through the driving rod 62.

[0036] It also includes a first auxiliary wheel 8 and a second auxiliary wheel 9. The first auxiliary wheel 8 is installed on the mounting plate 2 along the threading direction and is located on a side adjacent to the handheld frame 1. The second auxiliary wheel 9 is installed on the mounting plate 2 along the threading direction and is located on a side adjacent to the mounting plate 2. The parts of the first guide wheel 3, the second guide wheel 4, the first auxiliary wheel 8 and the second auxiliary wheel 9 for clamping and guiding the cables are made of rubber material.

[0037] The addition of the first auxiliary wheel 8 and the second auxiliary wheel 9 makes the cable threading process smoother, effectively reduces the friction of the cable between the first guide wheel 3 and the second guide wheel 4, improves the threading efficiency, and reduces the risk of cable damage.

[0038] like Figure 5As shown, in the embodiment of the present application, the wire loading frame 7 includes a plurality of U-shaped rods 71, a limiting ring 72 and a sliding sleeve 73. One end of the plurality of U-shaped rods 71 ​​is welded on the limiting ring 72 and welded on the circumferential part of the limiting ring 72, and the other end of the plurality of U-shaped rods 71 ​​is welded on the sliding sleeve 73 and welded on the circumferential part of the sliding sleeve 73. The length of the rod body of the plurality of U-shaped rods 71 ​​welded on one side of the limiting ring 72 is shorter than the length of the rod body welded on one side of the sliding sleeve 73, and the diameter of the limiting ring 72 is larger than the diameter of the sliding sleeve 73. A limiting rod 21 is provided on the handheld frame 1, and the sliding sleeve 73 is sleeved on the limiting rod 21 and can slide relative to the limiting rod 21. A second threaded hole is provided at one end of the limiting rod 21 away from the handheld frame 1, and a limiting bolt is threadedly connected to the second threaded hole. The sliding sleeve 73 is limited by the limiting bolt to ensure that the sliding sleeve 73 can rotate relative to the limiting rod 21 while preventing the sliding sleeve 73 from separating from the limiting rod 21.

[0039] The wire loading frame 7 is composed of a plurality of U-shaped rods 71 ​​and a limiting ring 72. One end of the U-shaped rod 71 is fixedly connected, and the other end is mounted on the limiting ring 72. The length of the rod body on one side of the U-shaped rods 71 ​​connected to each other is longer than the length of the rod body on the side connected to the limiting ring 72, thereby achieving effective limiting and fixation of cables of different diameters, improving the stability and applicability of wire loading, and the wire loading frame 7 connects one end of the U-shaped rod 71 through a sliding sleeve 73. The limiting rod 21 set on the handheld frame 1 enables the sliding sleeve 73 to rotate relative to the limiting rod 21, and limits the sliding sleeve 73 through a limiting bolt, thereby improving the flexibility and stability of the wire loading frame 7, facilitating rapid adjustment of the wire loading position according to different needs during high-altitude operations, and improving the threading efficiency.

[0040] Two guide rings 11 are arranged on the mounting plate 2 . The two guide rings 11 are installed on a side of the mounting plate 2 away from the handheld frame 1 along the threading direction.

[0041] The implementation principle of an adjustable speed threading device suitable for aerial operations in an embodiment of the present application is as follows: by adopting a synchronous drive device 6 to drive the first guide wheel 3 and the second guide wheel 4 to rotate synchronously, smooth threading of cables in aerial operations is achieved; the display screen 10 on the handheld frame 1 is electrically connected to the synchronous drive device 6, and displays the threading speed in real time, which is convenient for the operator to adjust according to actual needs; the radial adjustment device 5 on the mounting plate 2 enables the first guide wheel 3 to move in the radial direction to adapt to cables of different diameters; the wire mounting frame 7 adopts an adjustable design, which can be quickly adjusted to meet the needs of different cable diameters; by adopting high-strength materials and reasonable structural design, the present device not only improves the threading efficiency, but also reduces the labor intensity of the operator and ensures the safety and stability of the threading process.

[0042] The present application embodiment discloses a method for high-altitude operation with adjustable speed threading, and using the high-altitude operation adjustable speed threading device of the present application embodiment includes the following steps: S10: Install the cable to a predetermined position; S20: Check the power connection and start the self-test, and set the required threading speed; S30: Press the start button to start the automatic threading process; S40: monitoring the real-time feedback data on the display screen 10 throughout the whole process; S50: After completion, turn off the power and put away the device.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A speed-adjustable threading device suitable for aerial work, characterized by: The invention comprises a handheld frame (1), a mounting plate (2), a first guide wheel (3) and a second guide wheel (4), wherein the mounting plate (2) is mounted on the handheld frame (1), a radial adjustment device (5) is arranged on the mounting plate (2), the first guide wheel (3) is mounted on the radial adjustment device (5), the second guide wheel (4) is mounted on the mounting plate (2), a synchronous driving device (6) is mounted on the mounting plate (2), the synchronous driving device (6) is used to drive the first guide wheel (3) and the second guide wheel (4) to rotate synchronously, a display screen (10) for displaying the threading speed is mounted on the handheld frame (1), the display screen (10) is electrically connected to the synchronous driving device (6), and a wire loading frame (7) for loading wires is mounted on the handheld frame (1).

2. The speed-adjustable threading device for aerial work according to claim 1 is characterized in that: The synchronous drive device (6) comprises a drive motor (61), a drive rod (62), an active bevel gear (63) and an auxiliary bevel gear (64); the drive motor (61) is mounted on the lower plate surface of the mounting plate (2); the drive rod (62) is rotatably connected to the mounting plate (2), and one end of the drive rod (62) is fixedly connected to the output shaft of the drive motor (61); two active bevel gears (63) are provided, and the active bevel gears (63) are mounted on both ends of the drive rod (62); the first guide wheel (3) and the second guide wheel (4) are rotatably connected to the upper plate surface of the mounting plate (2), and one end of the first guide wheel (3) and the second guide wheel (4) extend to the lower plate surface; two auxiliary bevel gears (64) are provided, and the two auxiliary bevel gears (64) are respectively mounted on the first guide wheel (3) and the second guide wheel (4) and extend to one end of the lower plate surface; the two auxiliary bevel gears (64) are respectively meshed with the active bevel gears (63) at both ends.

3. The speed-adjustable threading device for aerial work according to claim 2 is characterized in that: The radial adjustment device (5) comprises an adjustment screw (51) and a moving block (52); the moving block (52) is slidably connected to the mounting plate (2); a first threaded hole is provided on the mounting plate (2); one end of the adjustment screw (51) passes through the first threaded hole and is rotatably connected to the moving block (52); the adjustment screw (51) is threadedly connected to the mounting plate (2); the active bevel gear (63) is fixedly connected to the moving block (52); a limiting block (631) is provided on the active bevel gear (63); a limiting groove (621) is provided on the driving rod (62) along the length direction; and the limiting block (631) is slidably connected in the limiting groove (621).

4. The speed-adjustable threading device for aerial work according to claim 3 is characterized in that: A plurality of the limit blocks (631) are provided, and a plurality of the limit slots (621) are provided corresponding to the number of limit slots (621). The plurality of limit slots (621) are provided on the circumferential portion of the driving rod (62), and the positions of the plurality of limit blocks (631) are provided corresponding to the limit slots (621).

5. The speed-adjustable threading device for aerial work according to claim 3 is characterized in that: An adjusting hand wheel (54) is installed at one end of the adjusting screw rod (51) away from the moving block (52), and the adjusting hand wheel (54) is coaxially arranged with the adjusting screw rod (51).

6. The speed-adjustable threading device for aerial work according to claim 1 is characterized in that: A plurality of guide rings (11) are installed on the installation plate (2).

7. The speed-adjustable threading device for aerial work according to claim 1 is characterized in that: The wire loading frame (7) comprises a plurality of U-shaped rods (71) and a limiting ring (72). One end of the plurality of U-shaped rods (71) is fixedly connected, and the other end is mounted on the limiting ring (72). The length of the rod body on one side where the plurality of U-shaped rods (71) are connected to each other is longer than the length of the rod body on the side where the plurality of U-shaped rods (71) are connected to the limiting ring (72).

8. The speed-adjustable threading device for aerial work according to claim 7 is characterized in that: The invention also comprises a sliding sleeve (73), on which the longer side of the U-shaped rod (71) is mounted, so as to connect one end of a plurality of U-shaped rods (71); a limiting rod (21) is arranged on the hand-held frame (1); the sliding sleeve (73) is sleeved on the limiting rod (21) and can rotate relative to the limiting rod (21); a second threaded hole is provided on the limiting rod (21); and the sliding sleeve (73) is limited by a limiting bolt threadedly connected in the second threaded hole.

9. The speed-adjustable threading device for aerial work according to claim 1 is characterized in that: It also comprises a first auxiliary wheel (8) and a second auxiliary wheel (9), wherein the first auxiliary wheel (8) is mounted on the mounting plate (2) corresponding to the first guide wheel (3) along the threading direction, and the second auxiliary wheel (9) is mounted on the mounting plate (2) corresponding to the second guide wheel (4) along the threading direction.

10. A speed-adjustable threading method for aerial work, applicable to the speed-adjustable threading device for aerial work as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S10: Install the cable to a predetermined position; S20: Check the power connection and start the self-test, and set the required threading speed; S30: Press the start button to start the automatic threading process; S40: real-time feedback data on the display screen (10) during the whole monitoring process; S50: After completion, turn off the power and put away the device.

Images