Method for removing an oxide layer from a post insulator

Abstract

The application provides a method for removing the oxide layer of a post insulator, which adopts a post insulator oxide layer removing tool to remove the oxide layer of the insulator, the tool comprising a robot docking assembly, a transition support seat, a clamping jaw structure and a brush assembly arranged inside the clamping jaw, the robot docking assembly controls the rotation of a lead screw, and the lead screw drives the rotation of the brush assembly through a bevel gear transmission structure; when the lead screw rotates, the lead screw drives the displacement of a nut on the outer edge through a threaded portion, and the nut controls the closing and opening of the clamping jaw through a connecting rod assembly. The application is convenient for removing the oxide layer of the post insulator in a live state, is convenient for installing a new overvoltage protector on the insulator, is beneficial for increasing the contact current conducting performance after removing the oxide layer, and improves the reliability and efficiency of installation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of live working robots, in particular to a method for removing the oxide layer of a post insulator. BACKGROUND

[0002] An insulator is a device installed between conductors or conductors and ground components at different potentials, capable of withstanding voltage and mechanical stress. Insulators are of various types and shapes. Although the structures and shapes of different types of insulators differ greatly, they are both composed of two parts: an insulating part and a connecting fitting.

[0003] Manual installation of overvoltage protectors requires disassembly of the insulator nut and installation on the bottom surface of the insulator, which is time-consuming and labor-intensive. Therefore, if the oxide layer on the outer circle of the bottom of the insulator is removed, the overvoltage protector can be installed on the metal outer circle of the bottom of the insulator. Since the connecting part of the insulator is live, removing the insulating layer requires removing the insulator or de-energizing operation, which is time-consuming and labor-intensive, and a tool is needed to remove the oxide layer in a live state. SUMMARY

[0004] The present application provides a method for removing the oxide layer of a post insulator, which facilitates the removal of the oxide layer of a post insulator in a live state, facilitates the installation of a new overvoltage protector on the insulator, and facilitates the removal of the oxide layer to increase the contact current-carrying performance, improve the reliability and efficiency of installation.

[0005] A tool for removing the oxide layer of a post insulator includes a robot docking assembly, a transition support seat, a jaw structure, and a brush assembly disposed inside the jaw. The transition support seat has a lead screw inside. One end of the lead screw is a threaded structure, and the other end is a smooth outer edge. The smooth outer edge end is connected to the robot docking assembly. A nut is fitted on the outer edge of the lead screw. The nut is connected to the jaw through a link assembly. The robot docking assembly controls the rotation of the lead screw, which drives the rotation of the brush assembly through a bevel gear transmission structure. When the lead screw rotates, the nut on the outer edge is displaced through the threaded part, and the nut controls the closing and opening of the jaw through the link assembly.

[0006] Further improvement, the nut is connected to a spring that limits its axial displacement along the lead screw.

[0007] Further improvement, the jaw is a V-shaped bracket.

[0008] Further improvement, the connecting rod assembly comprises a first connecting rod, a second connecting rod, a pin shaft and a third connecting rod, the first connecting rod is fixedly connected with the nut and is distributed along the radial direction of the screw rod, the two ends of the first connecting rod are respectively connected with the second connecting rod, the second connecting rod is connected with the third connecting rod through the pin shaft, and the two third connecting rods are cross arranged, and the tail end of the third connecting rod is connected with the bottom of the V-shaped support.

[0009] Further improvement, the brush assembly comprises four groups of brush rolling shafts arranged in the jaw structure, two groups are arranged in each V-shaped support, and each group of brush rolling shafts comprises two brush rolling shafts arranged side by side.

[0010] Further improvement, the bevel gear transmission structure comprises a driving bevel gear, a transition large bevel gear, a driven bevel gear, an output bevel gear and a transmission shaft, the tail end of the screw rod is connected with the driving bevel gear, the driving bevel gear drives the two driven bevel gears on the two sides to rotate through the transition large bevel gear, and the driven bevel gears drive the first group of brush rolling shafts to rotate; the V-shaped support is provided with a through hole at the rotation angle, the transmission shaft is arranged in the through hole and rotates in the through hole, and the first group of brush rolling shafts and the second group of brush rolling shafts are respectively connected with the transmission shaft through the output bevel gears.

[0011] Further improvement, the inside of the jaw is provided with a roller support, and the brush assembly is arranged in the roller support.

[0012] Further improvement, the inside of the jaw is provided with a positioning plate connected with the transition support base.

[0013] The application also provides a method for removing the oxide layer of a stand insulator, comprising the following steps:

[0014] 1) The working arm of the working robot is connected with the robot docking assembly on the stand insulator oxide layer removal tool, and the jaw is moved to the bottom of the insulator;

[0015] 2) The robot end motor drives the output shaft in the docking assembly, the output shaft drives the screw rod to rotate, the threaded structure on the screw rod controls the jaw to clamp the insulator through the nut and the connecting rod structure, and meanwhile the screw rod drives the brush rolling shafts in the brush assembly to rotate through the bevel gear transmission structure;

[0016] 3) The screw rod continues to rotate, the nut moves backward to the optical axis segment on the screw rod, the screw rod is separated from the nut, and the nut no longer moves, at this time, the jaw clamps the insulator through the connecting rod, and the brush rolling shafts continue to rotate with the screw rod to remove the oxide layer at the outer edge of the bottom of the insulator;

[0017] 4) The screw rod is reversed, the jaw is opened, the robot changes the circumferential angle, and steps 2) and 3) are repeated until the oxide layer is completely removed;

[0018] 5) The working robot moves to remove the oxide layer of the next insulator.

[0019] The present application has the advantages of:

[0020] 1. The oxide layer of the post insulator can be removed in the electrified state, and a new overvoltage protector can be installed on the insulator. After the oxide layer is removed, the contact current-carrying performance is improved, and the installation reliability and efficiency are improved.

[0021] 2. The rotation of the brush rolling shaft and the opening and closing control of the clamping jaw are realized simultaneously through the rotation of the power shaft of the lead screw, and the structure is simple and the control is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a structural schematic diagram of the present application;

[0024] Figure 2 is a bevel gear transmission structure schematic diagram;

[0025] Figure 3 is a schematic diagram of the application scenario of the present application;

[0026] Figure 4 is a working state schematic diagram of the present application.

[0027] In the figure, the robot docking assembly 1, the transition support seat 2, the lead screw 3, the spring 4, the nut 5, the first connecting rod 6, the second connecting rod 7, the pin shaft 8, the output gear mounting seat 9, the third connecting rod 10, the V-shaped support 11, the positioning plate 12, the driving bevel gear 13, the transition bevel gear 14, the driven bevel gear 15, the output bevel gear 16, the brush rolling shaft 17, the transmission shaft 18, the roller support 19, the cement pole tower 20, the cross arm 21, the insulator 22, and the main wire 23. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The present application provides a post insulator oxide layer removal tool, the structure is as Figure 1 and Figure 2As shown, including robot docking assembly 1, transition support seat 2, clamping jaw structure and brush assembly arranged inside the clamping jaw, the transition support seat is internally provided with a lead screw 3, one section of the lead screw is a threaded structure, one end of the threaded structure is provided with a bevel gear transmission structure, the bevel gear transmission structure drives the brush assembly to rotate; the other section of the lead screw is a smooth outer edge, the smooth outer edge end is connected with the robot docking assembly; a nut 5 is sleeved on the outer edge of the lead screw, the nut is connected with the clamping jaw through a connecting rod assembly, the robot docking assembly controls the rotation of the lead screw, the lead screw drives the brush assembly to rotate through the bevel gear transmission structure; when the lead screw rotates, the nut on the outer edge is displaced through the threaded part, and the nut controls the closing and opening of the clamping jaw through the connecting rod assembly.

[0030] Further improvement, the nut is connected with a spring 4 which limits the axial displacement of the nut along the lead screw.

[0031] Further improvement, the clamping jaw is a V-shaped support 11.

[0032] Further improvement, the connecting rod assembly includes a first connecting rod 6, a second connecting rod 7, a pin shaft 8 and a third connecting rod 10, the first connecting rod is fixedly connected with the nut and is distributed along the radial direction of the lead screw, the two ends of the first connecting rod are respectively connected with the second connecting rod, the second connecting rod is connected with the third connecting rod through the pin shaft, the two third connecting rods are cross arranged, and the ends of the third connecting rods are connected with the bottoms of the V-shaped supports.

[0033] Further improvement, the brush assembly includes four groups of brush rolling shafts arranged in the clamping jaw structure, two groups are arranged in each V-shaped support, and each group of brush rolling shafts includes two brush rolling shafts 17 arranged side by side.

[0034] Further improvement, the bevel gear transmission structure includes a driving bevel gear 13, a transition large bevel gear 14, a driven bevel gear 15, an output bevel gear 16 and a transmission shaft 18, the transition support seat 2 is connected with an output gear mounting seat 9, the output gear mounting seat 9 is internally provided with the driving bevel gear 13, the transition large bevel gear 14 and the driven bevel gear 15. The end of the lead screw is connected with the driving bevel gear, the driving bevel gear drives the two driven bevel gears on the two sides to rotate through the transition large bevel gear, and the driven bevel gears drive the first group of brush rolling shafts to rotate; the V-shaped support is provided with a through hole at the corner, the through hole is internally provided with a transmission shaft which rotates in the through hole, and the first group of brush rolling shafts and the second group of brush rolling shafts are respectively connected with the transmission shaft through the output bevel gear.

[0035] Further improvement, the inside of the clamping jaw is provided with a roller support 19, and the brush assembly is arranged inside the roller support.

[0036] Further improvement, the inside of the clamping jaw is provided with a positioning plate 12 connected with the transition support seat.

[0037] The application scene is as follows Figure 3As shown, the cross arm is arranged on the cement pole tower, the insulator is arranged on the cross arm, the main line is supported by the top of the insulator, and the column insulator oxide layer removal tool is used to directly remove the oxide layer of the insulator in the live state.

[0038] The column insulator oxide layer removal method comprises the following steps: Figure 4 As shown in the figure:

[0039] 1) The working arm of the operation robot is connected with the robot docking assembly on the column insulator oxide layer removal tool, and the clamping jaw is moved to the bottom of the insulator;

[0040] 2) The robot end motor drives the output shaft in the docking assembly, the output shaft drives the screw rod to rotate, the threaded structure on the screw rod controls the clamping jaw to clamp the insulator through the nut and the connecting rod structure, and the screw rod drives the brush rolling shaft in the brush assembly to rotate through the bevel gear transmission structure;

[0041] 3) The screw rod continues to rotate, the nut moves backward to the optical axis segment on the screw rod, the screw rod is separated from the nut, and the nut no longer moves, at this time, the clamping jaw clamps the insulator through the connecting rod, and the brush rolling shaft continues to rotate with the screw rod to remove the oxide layer on the outer edge of the bottom of the insulator;

[0042] 4) The screw rod is reversed, the clamping jaw is opened, the robot changes the circumferential angle, and steps 2) and 3) are repeated until the oxide layer is completely removed;

[0043] 5) The operation robot moves to remove the oxide layer of the next insulator.

[0044] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, for the device embodiment, the above description is only the preferred embodiment of the present application, and since it is basically similar to the method embodiment, it is described more simply. The relevant part can be referred to the part of the method embodiment. The above description is only the specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical range disclosed by the present application can be easily thought by those skilled in the art, and the change or replacement within the technical range disclosed by the present application without departing from the principle of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of removing an oxide layer from a post insulator, characterized by The method comprises the following steps: 1) the working arm of the work robot is connected with the robot docking assembly on the post insulator oxide layer removal tool, and the clamping jaw is moved to the bottom of the insulator; 2) the robot end motor drives the output shaft in the docking assembly, the output shaft drives the screw rod to rotate, the threaded structure on the screw rod controls the clamping jaw to clamp the insulator through the nut and the connecting rod structure, and the screw rod drives the brush rolling shaft in the brush assembly to rotate through the bevel gear transmission structure; 3) the screw rod continues to rotate, the nut moves backward to the optical axis segment on the screw rod, the screw rod is separated from the nut, and the nut no longer moves, at this time, the clamping jaw clamps the insulator through the connecting rod, and the brush rolling shaft continues to rotate with the screw rod to remove the oxide layer on the outer edge of the bottom of the insulator; 4) the screw rod reverses, the clamping jaw opens, the robot changes the circumferential angle, and steps 2) and 3) are repeated until the oxide layer is completely removed; 5) the work robot moves to remove the oxide layer of the next insulator. The post insulator oxide layer removal tool comprises a robot docking assembly, a transition support seat, a clamping jaw structure and a brush assembly arranged in the clamping jaw, the transition support seat is internally provided with a screw rod, one end of the screw rod is provided with a threaded structure, one end of the threaded structure is provided with a bevel gear transmission structure, and the bevel gear transmission structure drives the brush assembly to rotate; the other end of the screw rod is a smooth outer edge, and the smooth outer edge is connected with the robot docking assembly; a nut is sleeved on the outer edge of the screw rod, the nut is connected with the clamping jaw through a connecting rod assembly, the robot docking assembly controls the rotation of the screw rod, and the screw rod drives the brush assembly to rotate through the bevel gear transmission structure; when the screw rod rotates, the screw rod drives the nut on the outer edge to displace through the threaded part, and the nut controls the closing and opening of the clamping jaw through the connecting rod assembly.

2. The method of claim 1, wherein: The nut is connected with a spring which limits the axial displacement of the nut along the screw rod.

3. The method of claim 1, wherein: The clamping jaw is a V-shaped support.

4. The method of claim 3, wherein: The connecting rod assembly comprises a first connecting rod, a second connecting rod, a pin shaft and a third connecting rod, the first connecting rod is fixedly connected with the nut and is distributed along the radial direction of the screw rod, the two ends of the first connecting rod are respectively connected with the second connecting rod, the second connecting rod is connected with the third connecting rod through the pin shaft, the two third connecting rods are cross-connected, and the ends of the third connecting rods are connected with the bottom of the V-shaped support.

5. The method of claim 3, wherein: The brush assembly comprises four groups of brush rolling shafts arranged in the clamping jaw structure, two groups of brush rolling shafts are arranged in each V-shaped support, and each group of brush rolling shafts comprises two brush rolling shafts arranged side by side.

6. The method of claim 5, wherein: The bevel gear transmission structure comprises a driving bevel gear, a transition large bevel gear, a driven bevel gear, an output bevel gear and a transmission shaft, the driving bevel gear is connected with the end of the screw rod, the driving bevel gear drives the two driven bevel gears on the two sides to rotate through the transition large bevel gear, and the driven bevel gears drive the first group of brush rolling shafts to rotate; the V-shaped support is provided with a through hole at the corner, the through hole is provided with a transmission shaft which rotates in the through hole, and the first group of brush rolling shafts and the second group of brush rolling shafts are respectively connected through the output bevel gear and the transmission shaft.

7. The method of claim 1 or 3, wherein: The clamping jaw is internally provided with a roller support, and the brush assembly is arranged in the roller support.

8. The method of claim 1, wherein: The clamping jaw is internally provided with a positioning plate connected with the transition support seat.

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