CN118545649B - A portable power transmission line maintenance operation device and method - Google Patents

Abstract

The invention discloses a convenient transmission line maintenance operation device and method, which relates to the technical field of transmission line maintenance, and comprises a base, on which a winch mechanism is arranged; further comprising a fixing mechanism, on which a fixing piece 1 and a fixing piece 2 are arranged, and the fixing piece 1 and the fixing piece 2 are fixed to an angle steel; an auxiliary braking mechanism is arranged below an open fixing frame, which is used for auxiliary braking; a detection mechanism 1 and a detection mechanism 2 are arranged on the base, and the detection mechanism 1 detects surface defects of a suspension rope, and the detection mechanism 2 detects the stable state of the fixing mechanism; the invention solves the technical problems of inconvenient connection and installation between a pulley and an iron tower angle steel and poor safety during maintenance operations, that is, it is convenient to transfer and install the pulley, eliminates the manual installation process, improves safety, has rich functions, is convenient and labor-saving, has auxiliary braking measures, and prevents safety hazards.

Description

A portable power transmission line maintenance operation device and method

Technical Field

The present invention relates to the technical field of power transmission line maintenance, and in particular to a portable power transmission line maintenance operation device and method.

Background Art

The maintenance work of transmission lines is an important activity to ensure the safe operation of the power grid and improve the reliability of the power grid. In the traditional tower climbing method, when there is no iron tower with a pre-installed guide rail anti-fall protector, the first operator to climb the tower has no additional safety protection, and the lifting equipment needs to be installed on the iron tower angle steel first. That is, when performing maintenance work, the operator needs to climb to the top of the tower to hang the pulley, and the lower end is tightened and lowered by simple manpower to adjust the height, which is time-consuming and labor-intensive, and safety cannot be guaranteed. Based on this, the present invention proposes a convenient maintenance work device, which is convenient for transferring and installing the pulley, eliminating the manual installation process, improving safety, rich in functions, convenient and labor-saving, and equipped with auxiliary braking measures to prevent safety hazards.

Summary of the invention

In response to the above technical problems, the present invention solves the technical problems of inconvenient connection and installation between the pulley and the tower angle steel and poor safety during maintenance operations. It is easy to transfer and install the pulley, eliminates the manual installation process, improves safety, is rich in functions, convenient and labor-saving, and has auxiliary braking measures to prevent safety hazards.

The scheme used in the present invention is: a convenient transmission line maintenance operation device, including a base, on which a winch mechanism is arranged; also including a fixing mechanism, the fixing mechanism including an open fixing frame, an open inner ring is fixedly connected to the inner side of the open fixing frame, and three side surfaces of the open inner ring are respectively arranged with fixing parts one; an open limiting ring is rotatably installed on the open inner ring, and both the open limiting ring and the open inner ring are open structures, and a fixing part two is arranged on the inner side of the open limiting ring, and the open fixing frame is placed on the angle steel at the top of the transmission line tower by a drone, and the open limiting ring is rotated so that the opening on the open limiting ring faces the non-opening area on the open inner ring, and the fixing part one and the fixing part two are fixed on the angle steel; at the bottom of the open fixing frame A brake mounting frame is connected to the side, a pulley is arranged above the brake mounting frame, and a detector for detecting the rotation speed of the pulley is arranged between the pulley and the brake mounting frame; an auxiliary braking mechanism is arranged on the brake mounting frame; the auxiliary braking mechanism includes a winding disk rotatably mounted on the brake mounting frame, two movable slides are slidably mounted on the winding disk, and the movable slides are provided with through holes, and the lifting rope on the winch mechanism is supported by the pulley limit and passes through the through holes on the two movable slides; during auxiliary braking, the winding disk rotates to make the lifting rope wind under the pulley; a detection mechanism one and a detection mechanism two are arranged on the base, the detection mechanism one detects surface defects of the lifting rope, and the detection mechanism two detects the stable state of the fixing mechanism.

As a preferred solution, the winch mechanism includes a winch and a winch motor arranged on a base, the winch motor is used to drive the winch, and the lifting rope is wound around the winch.

As a preferred embodiment, the detection mechanism 1 includes a detection frame arranged on the base, and a visual detector is arranged on the inner side of the detection frame; the detection mechanism 1 also includes a winding drum and a winding motor arranged on the base, and the winding motor is used to drive the winding drum to wind the suspension rope.

As a preferred embodiment, the detection mechanism 2 includes a motor 1 fixedly mounted on a base, and a screw 1 rotatably mounted on the base, wherein the motor 1 is used to drive the screw 1; a movable mounting seat is slidably mounted on the base, the movable mounting seat and the screw 1 form a spiral pair, and a clamping cylinder is provided on the movable mounting seat, wherein the clamping cylinder is used to clamp one end of a lifting rope, and the lifting rope passes through a pulley on the fixed mechanism and moves through the movable mounting seat to perform a tensile test on the fixed mechanism.

As a preferred solution, the fixing mechanism includes a lifting ring arranged on the top of the open fixing frame, and the lifting ring is lifted by a drone; an adjusting motor 2 is arranged on the outer side of the open inner ring, and an adjusting gear 2 is arranged on the output shaft of the adjusting motor 2, and an adjusting gear ring is rotatably installed on the open inner ring, and the adjusting gear ring and the adjusting gear 2 constitute a gear pair, and the adjusting gear ring is used to drive the fixing member 1.

As a preferred solution, the fixing member 1 includes a meshing gear rotatably mounted on the open inner ring, and a guide rod and a fixed screw slidably fitted on the open inner ring, one end of the guide rod and the fixed screw is provided with a fixing part 1, the fixing part 1 is fixed on the angle steel, the fixed screw and the meshing gear form a spiral pair, and the meshing gear and the adjusting gear ring form a gear pair.

As a preferred solution, an adjusting motor 1 is fixedly arranged on the open inner ring, an adjusting gear 1 is arranged on the output shaft of the adjusting motor 1, a connecting gear ring is arranged on the open limiting ring, and the connecting gear ring and the adjusting gear 1 constitute a gear pair; the fixing part 2 includes a fixed control cylinder arranged on the open limiting ring, and a fixing part 2 is arranged on the telescopic rod of the fixed control cylinder.

As a preferred embodiment, the auxiliary braking mechanism includes a fixed oil cylinder arranged on a brake mounting frame, the fixed oil cylinder is located above the pulley; a winding motor is arranged on the brake mounting frame, a winding gear is arranged on the output shaft of the winding motor, and the winding gear and the winding disk constitute a gear pair.

As a preferred solution, a pushing cylinder is provided on the winding disk, a pushing wheel is provided on the telescopic rod of the pushing cylinder, a pushing part is provided on the movable slide, the pushing part is pushed by the pushing wheel to move the movable slide, and a spring for providing elastic force is connected between the movable slide and the winding disk.

A method for using the maintenance operation device comprises the following steps:

N10: Pass one end of the lifting rope through the pulley and the holes on the two movable slides at the same time, that is, the lifting rope passes through the hole of the movable slide on one side from bottom to top, then passes through the top of the pulley, and finally passes through the hole of the movable slide on the other side from top to bottom. The fixing mechanism is transported to the angle steel at the top of the transmission line tower by the drone. The angle steel is located on the inner side of the open limit ring;

N20: Fix the angle steel by fixing the first and second fixing parts so that the fixing mechanism is stably located on the angle steel without shaking;

N30: The free end of the lifting rope is placed on the second detection mechanism, and the lifting rope is stretched in different directions to make the fixing mechanism bear force to detect whether the fixing mechanism is stable;

N40: During operation, personnel are hoisted at the free end of the lifting rope and lifted and lowered by the winch mechanism. The rotation speed of the pulley is detected in real time. If the rotation speed is abnormal, emergency braking can be performed and auxiliary braking can be performed through the auxiliary braking mechanism, even if the lifting ropes are intertwined under the pulley.

Compared with the prior art, the present invention has the following advantages: (1) the lifting ring is hoisted by an unmanned aerial vehicle to transfer the open fixing frame to the angle steel, and the angle steel is located on the inner side of the open limiting ring. By adjusting the operation of motor one, the open limiting ring rotates, and the open area of the open limiting ring is transferred toward the non-opening area on the open inner ring, so that the angle steel is located on the inner side of the closed ring, and the transfer is convenient and efficient; (2) the fixing mechanism is fixed on the angle steel by the action of fixing part one and fixing part two. Specifically, by adjusting the operation of motor two, the adjusting gear ring rotates, and then the fixing screw and guide rod move, and the fixing part one moves and is fixedly attached to the side of the angle steel, that is, the three sides of the angle steel are respectively in contact with the fixing part one. The remaining side is fixedly contacted by the fixed control cylinder to control the fixing part 2, completing the limit fixation of all sides, that is, the fixing mechanism is stably installed on the angle steel and will not shake; (3) The lifting rope is retracted and released by the winch, that is, the lifting rope is tensioned. When the movable mounting seat moves, the lifting rope is stretched to make the fixing mechanism subject to force, and then its stability is detected; (4) The winding motor works, the winding disk rotates, and then the lifting rope intersects and winds under the pulley, so as to perform auxiliary braking. Since the free end of the lifting rope and the person move unilaterally, after the lifting rope intersects and winds under the pulley, it can block the person from unilaterally descending, complete auxiliary braking, and improve safety.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the installation structure of the base of the present invention.

FIG. 3 is a schematic diagram of the fixing mechanism structure of the present invention.

FIG. 4 is a schematic diagram of the installation structure of the auxiliary braking mechanism of the present invention.

FIG. 5 is a schematic diagram of a partial structure of the auxiliary braking mechanism of the present invention.

FIG. 6 is a schematic diagram of a partial installation structure of the fixing mechanism of the present invention.

FIG. 7 is a schematic diagram of the structure of the opening limit ring of the present invention.

FIG. 8 is a schematic diagram of the structure of the opening limit ring of the present invention at another angle.

FIG. 9 is a schematic diagram of the installation structure of a fixing member 1 of the present invention.

Figure numerals: 1-base; 2-winch; 3-winch motor; 4-control system; 5-motor 1; 6-screw rod 1; 7-movable mounting seat; 8-clamping cylinder; 9-detection frame; 10-winding drum; 11-winding motor; 12-open fixed frame; 13-lifting ring; 14-open inner ring; 15-brake mounting frame; 16-pulley; 17-fixed cylinder; 18-winding disk; 19-winding motor; 20-winding gear ; 21-pushing cylinder; 22-pushing wheel; 23-moving slide; 24-pushing part; 25-spring; 26-opening limit ring; 27-adjusting motor one; 28-adjusting gear one; 29-connecting gear ring; 30-fixing part two; 31-fixed control cylinder; 32-adjusting motor two; 33-adjusting gear two; 34-adjusting gear ring; 35-fixing part one; 36-guide rod; 37-fixing screw rod; 38-meshing gear.

DETAILED DESCRIPTION

Embodiment: As shown in Figures 1 to 9, a winch mechanism is provided on the base 1, and the winch mechanism includes a winch 2 and a winch motor 3 provided on the base 1. The winch motor 3 is used to drive the winch 2, and the lifting rope is wound around the winch 2. A control system 4 is provided on the base 1 for controlling various operations.

The fixing mechanism includes an open fixing frame 12, an open inner ring 14 is fixedly connected to the inner side of the open fixing frame 12, and fixing parts 1 are arranged on the three sides of the open inner ring 14 respectively; an open limiting ring 26 is rotatably installed on the open inner ring 14, and both the open limiting ring 26 and the open inner ring 14 are open structures, and a fixing part 2 is arranged on the inner side of the open limiting ring 26, and the open fixing frame 12 is placed on the angle steel at the top of the transmission line tower by a drone, and the open limiting ring 26 is rotated so that the opening on the open limiting ring 26 faces the non-opening area on the open inner ring 14, and the fixing part 1 and the fixing part 2 are fixed on the angle steel; a brake mounting frame 15 is connected to the lower side of the open fixing frame 12, a pulley 16 is arranged above the brake mounting frame 15, and a detector for detecting the rotation speed of the pulley 16 is arranged between the pulley 16 and the brake mounting frame 15; An auxiliary braking mechanism is arranged on the mounting frame 15; the auxiliary braking mechanism comprises a winding disk 18 rotatably mounted on the brake mounting frame 15, on which two movable slides 23 are slidably mounted, and on which perforations are arranged, and the lifting rope on the winch mechanism is limitedly supported by the pulley 16 and passes through the perforations on the two movable slides 23; during auxiliary braking, the winding disk 18 rotates to make the lifting rope wind under the pulley 16; the fixing mechanism also comprises a lifting ring 13 arranged on the top of the open fixing frame 12, and the lifting ring 13 is lifted by a drone; an adjusting motor 2 32 is arranged on the outer side of the open inner ring 14, and an adjusting gear 2 33 is arranged on the output shaft of the adjusting motor 2 32, and an adjusting gear ring 34 is rotatably mounted on the open inner ring 14, and the adjusting gear ring 34 and the adjusting gear 2 33 constitute a gear pair, and the adjusting gear ring 34 is used to drive the fixing part 1.

The fixing part 1 includes a meshing gear 38 rotatably mounted on the open inner ring 14, and a guide rod 36 and a fixed screw rod 37 slidingly fitted on the open inner ring 14, one end of the guide rod 36 and the fixed screw rod 37 is provided with a fixing part 15, the fixing part 15 is fixed on the angle steel, the fixed screw rod 37 and the meshing gear 38 form a spiral pair, and the meshing gear 38 and the adjusting gear ring 34 form a gear pair; an adjusting motor 127 is fixedly arranged on the open inner ring 14, an adjusting gear 128 is arranged on the output shaft of the adjusting motor 127, a connecting gear ring 29 is arranged on the open limit ring 26, and the connecting gear ring 29 and the adjusting gear 128 form a gear pair; the fixing part 2 includes a fixed control cylinder 31 arranged on the open limit ring 26, and a fixing part 230 is arranged on the telescopic rod of the fixed control cylinder 31.

The auxiliary braking mechanism includes a fixed oil cylinder 17 arranged on the brake mounting frame 15, and the fixed oil cylinder 17 is located above the pulley 16; a winding motor 19 is arranged on the brake mounting frame 15, and a winding gear 20 is arranged on the output shaft of the winding motor 19, and the winding gear 20 and the winding disk 18 constitute a gear pair; a pushing oil cylinder 21 is arranged on the winding disk 18, and a pushing wheel 22 is arranged on the telescopic rod of the pushing oil cylinder 21, and a pushing part 24 is arranged on the movable slide 23, and the pushing part 24 is pushed by the pushing wheel 22 to move the movable slide 23, and a spring 25 for providing elastic force is connected between the movable slide 23 and the winding disk 18.

A detection mechanism 1 and a detection mechanism 2 are arranged on the base 1. The detection mechanism 1 detects surface defects of the lifting rope, and the detection mechanism 2 detects the stable state of the fixing mechanism; the detection mechanism 1 includes a detection frame 9 arranged on the base 1, and a visual detector is arranged on the inner side of the detection frame 9; the detection mechanism 1 also includes a winding drum 10 and a winding motor 11 arranged on the base 1, and the winding motor 11 is used to drive the winding drum 10 to wind the lifting rope; the detection mechanism 2 includes a motor 15 fixedly arranged on the base 1, and a screw rod 16 rotatably installed on the base 1, and the motor 15 is used to drive the screw rod 16; a movable mounting seat 7 is slidably installed on the base 1, and the movable mounting seat 7 and the screw rod 16 form a spiral pair, and a clamping cylinder 8 is arranged on the movable mounting seat 7, and the clamping cylinder 8 is used to clamp one end of the lifting rope. The lifting rope passes through the pulley 16 on the fixing mechanism and moves through the movable mounting seat 7 to perform a tensile test on the fixing mechanism.

The principle of implementing the present invention is as follows: the base 1 is located at the bottom of the transmission line tower and is fixed to the bottom of the tower. One end of the lifting rope is passed through the pulley 16, and then the lifting ring 13 is lifted by the drone to transfer the open fixing frame 12 to the angle steel. The angle steel is located on the inner side of the open limit ring 26. By adjusting the motor 1 27, the open limit ring 26 rotates under the transmission of the adjusting gear 1 28 and the connecting gear ring 29, and the open area of the open limit ring 26 is transferred to the non-open area on the open inner ring 14, so that the angle steel is located in the closed position. annular inner side; further, through the action of fixing part 1 and fixing part 2, the fixing mechanism is fixed on the angle steel, specifically, by adjusting the motor 2 32 to make the adjusting gear ring 34 rotate, and then the fixing screw 37 and the guide rod 36 move, the fixing part 1 35 moves and is fixedly attached to the side of the angle steel, that is, the three sides of the angle steel are respectively in contact with the fixing part 1, and the remaining side is fixedly contacted by the fixing part 2 30 controlled by the fixing control cylinder 31, thereby completing the limiting fixation of all the sides, that is, the fixing mechanism is stably installed on the angle steel.

The free end of the lifting rope is placed on the mobile mounting seat 7 and fixed by the clamping cylinder 8. When the motor 5 works, the screw rod 6 rotates, the mobile mounting seat 7 moves, and the lifting rope is retracted and released by the winch 2, that is, the lifting rope is tensioned. When the mobile mounting seat 7 moves, the lifting rope is stretched to make the fixing mechanism bear force, and then its stability is detected.

The lifting rope passes through the through holes of the two movable slides 23 on the fixing mechanism, and then is limitedly supported by the pulley 16, that is, the lifting rope first passes through the through holes of the movable slide 23 on one side from bottom to top, then passes through from above the pulley 16, and finally passes through the through holes of the movable slide 23 on the other side from top to bottom. The staff is hoisted on the free end of the lifting rope, and the lifting and lowering are controlled by the winch mechanism. During the lifting and lowering process, since the fixing mechanism is fixed on the angle steel, no shaking will occur; the rotation speed of the pulley 16 can be detected to detect whether the lifting speed is abnormal; specifically, if the speed is abnormal, emergency braking can be performed through the winch mechanism, and further, the fixed oil cylinder 17 works, the telescopic rod of the fixed oil cylinder 17 presses the lifting rope, and further by pushing the oil cylinder 21 The push wheel 22 is controlled to move, and the push wheel 22 pushes the pushing part 24 to make the two movable slides 23 slide relative to each other, that is, to move the suspension rope inward, and then the winding motor 19 works, and under the transmission action of the winding gear 20 and the winding disk 18, the winding disk 18 rotates, and then the suspension rope is intersected and wound under the pulley 16, so as to perform auxiliary braking. Since the free end of the suspension rope and the personnel move unilaterally, after the suspension rope intersects and winds under the pulley 16, it can block the unilateral downward movement of the personnel and complete the auxiliary braking; further, the detection mechanism is used to perform periodic surface defect detection on the suspension rope, that is, the suspension rope is wound by the winding drum 10, and the suspension rope passes through the detection frame 9, and its surface is inspected for defects by the visual detector for timely maintenance and replacement.

Claims (10)

1. The portable power transmission line overhauling operation device comprises a base (1), wherein a winch mechanism is arranged on the base (1); the method is characterized in that: the fixing mechanism comprises an opening fixing frame (12), an opening inner ring (14) is fixedly connected to the inner side of the opening fixing frame (12), and fixing pieces I are respectively arranged on three side faces of the opening inner ring (14); an opening limiting ring (26) is rotatably arranged on the opening inner ring (14), the opening limiting ring (26) and the opening inner ring (14) are of an opening structure, a fixing piece II is arranged on the inner side of the opening limiting ring (26), an opening fixing frame (12) is arranged at the angle steel at the top of a transmission line iron tower through an unmanned aerial vehicle, the opening limiting ring (26) rotates, the upper opening of the opening limiting ring (26) faces to a non-opening area on the opening inner ring (14), and the fixing piece I and the fixing piece II are fixed on the angle steel; a brake mounting frame (15) is connected below the opening fixing frame (12), a pulley (16) is arranged above the brake mounting frame (15), and a detector for detecting the rotating speed of the pulley (16) is arranged between the pulley (16) and the brake mounting frame (15); an auxiliary braking mechanism is arranged on the braking installation frame (15); the auxiliary braking mechanism comprises a winding disc (18) rotatably arranged on a braking installation frame (15), two movable sliding seats (23) are slidably arranged on the winding disc (18), perforations are formed in the movable sliding seats (23), and a lifting rope on the winch mechanism is supported in a limiting manner through a pulley (16) and penetrates through the perforations in the two movable sliding seats (23); during auxiliary braking, the winding disc (18) rotates to enable the lifting rope to wind below the pulley (16); the base (1) is provided with a first detection mechanism and a second detection mechanism, the first detection mechanism detects the surface defects of the lifting rope, and the second detection mechanism detects the stable state of the fixing mechanism.

2. The portable transmission line maintenance operation device according to claim 1, wherein: the winch mechanism comprises a winch (2) and a winch motor (3) which are arranged on the base (1), the winch motor (3) is used for driving the winch (2), and the lifting rope is wound on the winch (2).

3. The portable transmission line maintenance operation device according to claim 1, wherein: the first detection mechanism comprises a detection frame (9) arranged on the base (1), and a visual detector is arranged on the inner side of the detection frame (9); the first detection mechanism also comprises a winding drum (10) and a winding motor (11) which are arranged on the base (1), wherein the winding motor (11) is used for driving the winding drum (10) and winding the lifting rope.

4. The portable transmission line maintenance operation device according to claim 1, wherein: the second detection mechanism comprises a first motor (5) fixedly arranged on the base (1) and a first screw rod (6) rotatably arranged on the base (1), and the first motor (5) is used for driving the first screw rod (6); the base (1) is provided with a movable mounting seat (7) in a sliding manner, the movable mounting seat (7) and a screw rod I (6) form a screw pair, a clamping oil cylinder (8) is arranged on the movable mounting seat (7), the clamping oil cylinder (8) is used for clamping one end of a lifting rope, the lifting rope penetrates through a pulley (16) on a fixing mechanism, and the movable mounting seat (7) is used for stretching and detecting the fixing mechanism.

5. The portable transmission line maintenance operation device according to claim 4, wherein: the fixing mechanism comprises a hanging ring (13) arranged at the top of the opening fixing frame (12), and the hanging ring (13) is hung by an unmanned aerial vehicle; an adjusting motor II (32) is arranged on the outer side of the opening inner ring (14), an adjusting gear II (33) is arranged on an output shaft of the adjusting motor II (32), an adjusting gear ring (34) is rotatably arranged on the opening inner ring (14), the adjusting gear ring (34) and the adjusting gear II (33) form a gear pair, and the adjusting gear ring (34) is used for driving the fixing piece I.

6. The portable transmission line maintenance operation device according to claim 5, wherein: the first fixing piece comprises a meshing gear (38) rotatably arranged on the opening inner ring (14), and a guide rod (36) and a fixing screw rod (37) which are in sliding fit on the opening inner ring (14), one ends of the guide rod (36) and the fixing screw rod (37) are provided with a first fixing part (35), the first fixing part (35) is fixed on angle steel, the fixing screw rod (37) and the meshing gear (38) form a spiral pair, and the meshing gear (38) and the adjusting gear ring (34) form a gear pair.

7. The portable transmission line maintenance operation device according to claim 6, wherein: an adjusting motor I (27) is fixedly arranged on the opening inner ring (14), an adjusting gear I (28) is arranged on an output shaft of the adjusting motor I (27), a connecting gear ring (29) is arranged on the opening limiting ring (26), and the connecting gear ring (29) and the adjusting gear I (28) form a gear pair; the second fixing part comprises a fixed control oil cylinder (31) arranged on the opening limiting ring (26), and a second fixing part (30) is arranged on the telescopic rod of the fixed control oil cylinder (31).

8. The portable transmission line maintenance operation device according to claim 1, wherein: the auxiliary braking mechanism comprises a fixed oil cylinder (17) arranged on a braking installation frame (15), and the fixed oil cylinder (17) is positioned above the pulley (16); a winding motor (19) is arranged on the brake mounting frame (15), a winding gear (20) is arranged on an output shaft of the winding motor (19), and the winding gear (20) and the winding disc (18) form a gear pair.

9. The portable transmission line maintenance operation device according to claim 8, wherein: the winding disc (18) is provided with a pushing oil cylinder (21), a push wheel (22) is arranged on a telescopic rod of the pushing oil cylinder (21), a pushing part (24) is arranged on the moving sliding seat (23), the pushing part (24) is pushed by the push wheel (22) so as to enable the moving sliding seat (23) to move, and a spring (25) for providing elasticity is connected between the moving sliding seat (23) and the winding disc (18).

10. A method of using the service device of claim 1, comprising the steps of:

N10: one end of the lifting rope passes through the pulley (16) and simultaneously passes through the perforations on the two movable sliding seats (23), namely, the lifting rope passes through the perforation of the movable sliding seat (23) on one side from bottom to top, then passes through the pulley (16) and finally passes through the perforation of the movable sliding seat (23) on the other side from top to bottom, the fixing mechanism is transported to angle steel on the top of the power transmission line iron tower through the unmanned aerial vehicle, and the angle steel is positioned inside the opening limiting ring (26);

N20: the angle steel is fixed through the first fixing piece and the second fixing piece, so that the fixing mechanism is stably positioned on the angle steel and does not shake;

N30: the free end of the lifting rope is arranged on the second detection mechanism, the lifting rope is stretched in different directions, so that the fixing mechanism is stressed, and whether the fixing mechanism is stable or not is detected;

N40: during operation, personnel hoist and mount at the free end of lifting rope, carry out lift transmission through winch mechanism, carry out real-time detection to the rotational speed of pulley (16), and the rotational speed is unusual, can carry out emergency braking, carries out auxiliary braking through auxiliary braking mechanism, even the lifting rope carries out the intersection winding under pulley (16).