Auxiliary device for replacing composite cross arm insulator of overhead transmission line

Abstract

The invention discloses an overhead transmission line composite cross arm insulator replacement auxiliary device which comprises a rear clamp, a connecting plate, a front clamp, a mounting cylinder, a sliding block, a limiting frame, a mounting plate, a telescopic arm pipe, a hydraulic lifting system and an adjustable locking lifting hook, the rear clamp is fixed to the rear portion of the top end of the connecting plate, and the front clamp is mounted in the middle of the top end of the connecting plate; the installation cylinders are fixed to the rear clamp and the top end of the front clamp respectively, the two sliding blocks are connected to the installation cylinders in an up-down sliding mode respectively, the limiting frames are fixed to the top ends of the sliding blocks respectively, the installation plate is installed on the rear portion of the top end of the rear clamp, the rear portion of the telescopic arm pipe is hinged to the middle of the installation plate, and the telescopic arm pipe penetrates through the front limiting frame and the rear limiting frame. The hydraulic lifting system is installed on the front portion of the top end of the connecting plate, the output end of the top of the hydraulic lifting system is connected to the telescopic arm pipe, and the adjustable locking lifting hook is installed on the telescopic arm pipe. The problem that the replacement of the composite cross arm insulator of the overhead transmission line is time-consuming and labor-consuming is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power engineering, and in particular to an auxiliary device for replacing a composite cross-arm insulator of an overhead transmission line. Background Art

[0002] Currently, in routine maintenance, the replacement of composite cross-arm insulators on overhead transmission lines requires the cooperation of multiple people, and requires high-altitude workers to climb to the upper cross-arm end of the composite cross-arm insulator that needs to be replaced, and hang a chain hoist and a backup protection rope for the transmission line conductor. The tools are numerous and complex, and the cost is high. In addition, when using a chain hoist for replacement, the chain length is limited, and the high-altitude workers need to stand at the cross-arm end to pull the chain for unloading, which is risky. The high-altitude workers consume a lot of physical energy, the process is cumbersome, the efficiency is low, and the working time requirements are high. Replacing a single-phase composite cross-arm insulator usually takes half an hour. At the same time, using a chain hoist to replace a composite cross-arm insulator has high requirements for the tower shape. Some steel tube towers cannot hang a chain hoist and need to use a crane for operation. Crane operation is not only restricted by the maintenance terrain, but also greatly increases the maintenance cost. The operation risk also needs to be mentioned and controlled. After the shed skirt of the composite cross-arm insulator of some steel tube towers is damaged, it cannot be replaced in time, which leads to reduced power supply reliability. Summary of the Invention

[0003] The object of the present invention is to provide an auxiliary device for replacing composite cross-arm insulators of overhead transmission lines to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an auxiliary device for replacing composite cross-arm insulators of overhead transmission lines, comprising a rear clamp, a connecting plate, a front clamp, a mounting tube, a slider, a limit frame, a mounting plate, a telescopic arm tube, a hydraulic lifting system, and an adjustable locking hook. The rear clamp is fixed to the rear of the top of the connecting plate, the front clamp is installed in the middle of the top of the connecting plate, the mounting tubes are respectively fixed to the rear clamp and the top of the front clamp, the two sliders are respectively connected to the mounting tube by sliding up and down, the limit frames are respectively fixed to the top of the sliders, the mounting plate is installed at the rear of the top of the rear clamp, the rear of the telescopic arm tube is hinged to the middle of the mounting plate, and the telescopic arm tube passes through the front and rear limit frames, the hydraulic lifting system is installed at the front of the top of the connecting plate, and the top output end of the hydraulic lifting system is connected to the telescopic arm tube, and the adjustable locking hook is installed on the telescopic arm tube.

[0005] Based on the above technical solution, the adjustable locking hook includes a cable reel, a remote control motor structure, a rotating shaft, a traction rope, a hanger, and a locking hook. The cable reel is fixed to the rear end of the mounting plate, the remote control motor structure is installed at the left end of the cable reel, the rotating shaft is installed on the remote control motor structure through the cable reel, the rear end of the traction rope is connected to the rotating shaft, and the front end of the traction rope passes through the telescopic arm tube, the hanger is installed at the front part of the traction rope, and the two locking hooks are respectively installed on the left and right parts of the bottom end of the hanger.

[0006] Based on the above technical solution, the telescopic arm tube lifts the conductor connected to the composite cross-arm insulator through an adjustable locking hook.

[0007] Compared with the prior art, the present invention has the following advantages: the present invention fixes the cross arm of the insulator to be replaced by a clamp, and lifts the wire connected to the insulator with the cooperation of a hydraulic lifting system and an adjustable locking hook to replace the insulator, which is easy to operate and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the appearance structure of the present invention.

[0009] Figure 2 This is a schematic diagram of the present invention in use.

[0010] Figure 3 Schematic diagram of the adjustable locking hook of the present invention.

[0011] In the figure: 1. rear clamp, 2. connecting plate, 3. front clamp, 4. mounting tube, 5. sliding tube, 6. limit frame, 7. mounting plate, 8. telescopic arm tube, 9. hydraulic lifting system, 10. adjustable locking hook, 11. cable reel, 12. remote control motor structure, 13. rotating shaft, 14. traction rope, 15. hanger, 16. locking hook. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] like Figures 1 to 3As shown, an auxiliary device for replacing composite cross-arm insulators of overhead transmission lines includes a rear clamp 1, a connecting plate 2, a front clamp 3, a mounting tube 4, a slider 5, a limit frame 6, a mounting plate 7, a telescopic arm tube 8, a hydraulic lifting system 9, and an adjustable locking hook 10. The rear clamp 1 is fixed to the rear of the top of the connecting plate 2, the front clamp 3 is installed in the middle of the top of the connecting plate 2, the mounting tube 4 is respectively fixed to the top of the rear clamp 1 and the front clamp 3, the two sliders 5 are respectively connected to the mounting tube 4 by sliding up and down, the limit frames 6 are respectively fixed to the top of the slider 5, the mounting plate 7 is installed at the rear of the top of the rear clamp 1, the rear of the telescopic arm tube 8 is hinged to the middle of the mounting plate 7, and the telescopic arm tube 8 passes through the front and rear limit frames 6, the hydraulic lifting system 9 is installed at the front of the top of the connecting plate 2, and the top output end of the hydraulic lifting system 9 is connected to the telescopic arm tube 8, and the adjustable locking hook 10 is installed on the telescopic arm tube 8.

[0014] The adjustable locking hook 10 includes a cable reel 11, a remote control motor structure 12, a rotating shaft 13, a traction rope 14, a hanger 15, and a locking hook 16. The cable reel 11 is fixed to the rear end of the mounting plate 7, the remote control motor structure 12 is installed at the left end of the cable reel 11, the rotating shaft 13 is installed on the remote control motor structure 12 through the cable reel 11, the rear end of the traction rope 14 is connected to the rotating shaft 13, and the front end of the traction rope 14 passes through the telescopic arm tube 8, the hanger 15 is installed at the front part of the traction rope 14, and the two locking hooks 16 are respectively installed at the left and right parts of the bottom end of the hanger 15.

[0015] The telescopic arm tube 8 lifts the conductor connected to the composite cross-arm insulator through the adjustable locking hook 10.

[0016] The working principle of the present invention is as follows: the connection plate 2 is clamped and stabilized on the composite cross arm of the overhead transmission line by the rear clamp 1 and the front clamp 3, the telescopic arm tube 8 is telescoped to adjust the extension length, the locking hook 16 is hooked on the wires connected to the left and right sides of the insulator respectively, and the front part of the telescopic arm tube 8 is raised and lowered by the hydraulic lifting system 9 to adjust the angle. To cope with different tower shapes, the traction rope 14 is wound in the telescopic arm tube 8 through the remote control motor interface 12 to achieve stable lifting of the wires for replacement of the insulator.

[0017] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, based on the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. An auxiliary device for replacing composite cross-arm insulators of an overhead power transmission line, comprising a rear clamp (1), a connecting plate (2), a front clamp (3), a mounting tube (4), a slider (5), a limit frame (6), a mounting plate (7), a telescopic arm tube (8), a hydraulic lifting system (9), and an adjustable locking hook (10), characterized in that: The rear clamp (1) is fixed to the rear of the top of the connecting plate (2), the front clamp (3) is installed in the middle of the top of the connecting plate (2), the mounting tube (4) is fixed to the top of the rear clamp (1) and the top of the front clamp (3), the two sliders (5) are connected to the mounting tube (4) by sliding up and down, the limit frames (6) are fixed to the top of the sliders (5), the mounting plate (7) is installed at the rear of the top of the rear clamp (1), the rear of the telescopic arm tube (8) is hinged to the middle of the mounting plate (7), and the telescopic arm tube (8) passes through the front and rear limit frames (6), the hydraulic lifting system (9) is installed at the front of the top of the connecting plate (2), and the top output end of the hydraulic lifting system (9) is connected to the telescopic arm tube (8), and the adjustable locking hook (10) is installed on the telescopic arm tube (8).

2. The auxiliary device for replacing composite cross-arm insulators of overhead transmission lines according to claim 1, characterized in that: The adjustable locking hook (10) includes a cable reel (11), a remote control motor structure (12), a rotating shaft (13), a traction rope (14), a hanger (15), and a locking hook (16). The cable reel (11) is fixed to the rear end of the mounting plate (7), the remote control motor structure (12) is installed at the left end of the cable reel (11), the rotating shaft (13) is installed on the remote control motor structure (12) through the cable reel (11), the rear end of the traction rope (14) is connected to the rotating shaft (13), and the front end of the traction rope (14) passes through the telescopic arm tube (8), the hanger (15) is installed at the front of the traction rope (14), and the two locking hooks (16) are respectively installed at the left and right parts of the bottom end of the hanger (15).

3. The auxiliary device for replacing composite cross-arm insulators of overhead transmission lines according to claim 2, characterized in that: The telescopic arm tube (8) lifts the conductor connected to the composite cross-arm insulator via an adjustable locking hook (10).

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