A bolt pre-tightening device for high-voltage line drainage clamp

Abstract

The present invention discloses a bolt pre-tightening device for a high-voltage line drainage clamp, which belongs to the technical field of high-voltage line installation. Its innovation is that it includes a main base that is in an "L" shape as a whole; a moving mechanism is arranged on the main base, a handle assembly is arranged at the bottom, and a nut tightening mechanism and a bolt tightening mechanism are arranged at the front and rear ends respectively; the nut tightening mechanism is movably connected to the moving mechanism and can move forward and backward along the upper surface of the main base under the action of the moving mechanism. The device of the present invention has a novel design, a simple structure, a small size, and a light weight. It can be carried by only one person, is easy to operate and use, has a good effect, and is highly practical.

Description

Technical Field

[0001] The invention belongs to the technical field of on-site installation of high-voltage lines, and in particular relates to a bolt pre-tightening device for a high-voltage line drainage clamp. Background Art

[0002] In the prior art, when a drain clamp in a high-voltage transmission line fails, maintenance personnel are required to immediately use tools to tighten the screw and nut of the drain clamp under power-on conditions to ensure safe operation of the line. At present, most of the tools used for live operations are insulating wrenches and insulating sleeves. Two insulating wrenches or insulating sleeves are required for each operation. One clamps the screw seat to prevent the screw from rotating, and the other clamps the nut and rotates it clockwise to tighten the nut relative to the screw. However, this tool requires intermittent and continuous switching of the position of the clamping nut and reciprocating movement, so the tightening speed is slow, the labor intensity is high, the efficiency is low, and the working environment is a high-risk working environment, which also has a certain impact on the safety of maintenance personnel; at the same time, if two sets of bolts are arranged side by side on the same drain clamp, when the insulating wrench or insulating sleeve tightens one set of bolts, the other set of bolts will also hinder the rotation of the handle, affecting the operation. Summary of the invention

[0003] In view of the technical problems of low work efficiency and high-risk working environment when tightening the bolts of the high-voltage line drainage clamp in the background technology, the present invention provides a bolt pre-tightening device for the high-voltage line drainage clamp, which is convenient and lightweight, can tighten the bolts on the drainage clamp when the high-voltage transmission line is energized, and has high work efficiency and good effect.

[0004] The technical solution of the present invention to solve the technical problem is as follows:

[0005] The invention discloses a bolt pre-tightening device for a high-voltage line drainage clamp. Its innovation lies in that it comprises a main base which is in an "L" shape as a whole; a moving mechanism is arranged on the main base, a handle assembly is arranged at the bottom of the main base, and a nut tightening mechanism and a bolt tightening mechanism are arranged at the front and rear ends of the main base respectively; the nut tightening mechanism is movably connected with the moving mechanism and can move forward and backward along the upper surface of the main base under the action of the moving mechanism.

[0006] As a further improvement of the technical solution of the present invention, the nut clamping mechanism includes a sliding base and a first cover plate. A first groove is provided on one side of the sliding base, and a first through hole is provided in the upper part of the first groove. The first cover plate is adapted to and fixedly connected to the first groove, and a second through hole is provided in its upper part. A first worm gear, a first worm and a first motor are arranged in the first groove from top to bottom. The first worm gear is meshed and connected with the first worm, and its center is in the shape of a nut. A first external gear ring is arranged on one side of the first worm. A first transmission gear is fixedly connected to the output shaft of the first motor, and the first transmission gear is meshed and connected with the first external gear ring. The centers of the first through hole, the second through hole and the first worm gear are on the same straight line.

[0007] As a further improvement of the technical solution of the present invention, the bolt clamping mechanism includes a second groove provided at the rear end of the main base and a second cover plate. A third through hole is provided in the upper part of the second groove, and a plurality of fan-shaped ring-shaped protrusions are evenly arranged along the third through hole on the inner side thereof. A fan-shaped ring notch is formed between adjacent fan-shaped ring-shaped protrusions. The second cover plate is adapted to and fixedly connected to the opening of the second groove, and a fourth through hole is provided in its upper part. A plurality of cover plate notches corresponding to the fan-shaped ring notches are evenly arranged outward along the edge of the fourth through hole. A second worm gear, a second worm and a second motor are arranged in the second groove from top to bottom. The second worm gear is in a circular ring shape and is arranged outside the fan-shaped ring protrusion. The outer gear ring thereof is meshed and connected with the second worm. A plurality of arc-shaped through grooves are evenly arranged on the ring body of the second worm gear from the edge of the inner through hole to the outer gear ring. A pin shaft is arranged in each arc-shaped through groove, and both ends of the pin shaft are respectively fixedly connected to both ends of a "C"-shaped top block. The top block can be pushed into or withdrawn from the fan-shaped notch when the second worm gear rotates. A second external gear ring is arranged at one end of the second worm. A second transmission gear is fixedly connected to the output shaft of the second motor, and the second transmission gear is meshed and connected with the second external gear ring. The centers of the third through hole, the second worm gear, the fourth through hole and the first worm gear are on the same straight line.

[0008] As a further improvement of the technical solution of the present invention, the moving mechanism includes a lead screw. A lead screw motor is arranged at the end of the lead screw, and guide rails are symmetrically arranged on both sides thereof. The sliding base is arranged on the lead screw and the guide rails and can move back and forth along the lead screw and the guide rails when the lead screw rotates.

[0009] As a further improvement of the technical solution of the present invention, a third groove is provided on the upper surface of the main base. Three through holes are respectively provided corresponding to the front and rear ends of the third groove and the bottom of the sliding base. The lead screw is installed in the through holes in the middle of the third groove and the sliding base, and the guide rails are respectively installed in the two through holes on both sides of the third groove and the sliding base.

[0010] As a further improvement of the technical solution of the present invention, the handle assembly includes a handle; the top of the handle is connected and fixed to the bottom of the main base, the bottom is provided with a tail cover, the outside of the handle is provided with a plurality of buttons, and the inside of the handle is provided with a battery and a controller; the controller, the first motor, the second motor and the screw motor are respectively connected to the battery through lines; the first motor, the second motor, the screw motor and the plurality of buttons are respectively connected to the controller through lines.

[0011] As a further improvement of the technical solution of the present invention, a camera is installed in the middle of the main base, and a display is arranged on the outside of the handle. The camera and the display are respectively connected to the controller through lines.

[0012] As a further improvement of the technical solution of the present invention, a mounting seat is provided on the main base, and the camera is mounted on the mounting seat.

[0013] When the present invention is used, the nut is placed in the nut-shaped through hole at the center of the first worm gear, and the first motor of the nut tightening mechanism drives the first transmission gear, the first outer gear ring, the first worm and the first worm gear to rotate, thereby driving the nut to rotate on the bolt, so that the nut is fastened to the bolt; the end of the bolt is placed in the third through hole of the bolt tightening mechanism, and the second motor drives the second transmission gear, the second outer gear ring, the second worm and the second worm gear to rotate. When the second worm gear rotates, the pin moves in the arc-shaped through groove, and at the same time drives each top block to shrink inward or expand outward to tighten the bolt head or loosen the bolt head to cooperate with the tightening of the nut; the screw motor in the moving mechanism drives the screw to rotate, thereby The sliding base installed on the screw rod is driven to move forward and backward on the main base, so that the sliding base moves inward or outward while the nut is rotated and tightened to maintain synchronization; the length of the handle assembly can be set according to actual needs, and the buttons on the outside of the handle are used to control the rotation of the first and second motors and the screw motor through the internal controller. During the nut tightening process, the collected video or image information can be transmitted to the controller through the camera, and then transmitted to the display through the controller for the staff to observe the actual situation. A communication module can also be set on the controller, and a corresponding control APP can be set on a mobile phone, PAD and other terminals to facilitate observation and control at the terminal.

[0014] Compared with the prior art, the bolt pre-tightening device for the high-voltage line drainage clamp described in the present invention has a novel design, a simple structure, a small size, and a light weight. It can be carried by only one person and is easy to operate. The device described in the present invention can adjust the distance between the hand-held part and the working part by adjusting the length of the handle, so that the staff can operate away from the high-voltage line to ensure safety. The device described in the present invention can check the bolt fixing condition from a long distance by setting a camera and a display. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the enlarged structure of the upper part of the present invention;

[0018] Figure 3 It is a schematic diagram of the enlarged structure of the lower part of the present invention;

[0019] Figure 4 It is a schematic diagram of the explosion of the upper part of the present invention;

[0020] Figure 5 It is a schematic diagram of the explosion of the lower part of the present invention;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the nut tightening mechanism of the present invention;

[0023] Figure 8 This is a schematic diagram of the bolt tightening mechanism structure of the present invention;

[0024] Fig. 9 It is a schematic diagram of the top view structure of the present invention;

[0025] In the figure: 1-main base 2-nut tightening mechanism 3-handle assembly 4-bolt tightening mechanism 5-moving mechanism 6-sliding base 7-first cover plate 8-first groove 9-first through hole 10-second through hole 11-first worm wheel 12-first worm 13-first outer ring gear 14-first transmission gear 15-second groove 16-second cover plate 17-third through hole 18-fourth through hole 19-sector ring shaped protrusion 20-sector ring notch 21-cover plate notch 22-second worm wheel 23-second worm 24-second motor 25-arc through groove 26-pin shaft 27-top block 28-second outer ring gear 29-second transmission gear 30-screw 31-screw motor 32-guide rail 33-third groove 34-handle 35-tail cover 36-battery 37-controller 38-button 39-camera 40-mounting seat 41-nut 42-mounting plate 43-bolt 44-display 45-first motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "upper", "lower", "left", "right", "front", "back", etc. used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly; "connected" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0028] like Figures 1 to 9 As shown, the present invention is a bolt pre-tightening device for a high-voltage line drainage clamp, characterized in that it includes a main base 1 that is overall "L"-shaped; a moving mechanism 5 is provided on the main base 1, and a handle assembly 3 is provided at the bottom thereof, the length of the handle assembly 3 can be set according to actual working requirements, and a nut tightening mechanism 2 and a bolt tightening mechanism 4 are respectively provided at the front and rear ends thereof, the nut tightening mechanism 2 is used to rotate the nut 41 on the drainage clamp, and the bolt tightening mechanism 4 is used to fix the bolt 43 on the drainage clamp to prevent it from rotating; the nut tightening mechanism 2 is movably connected to the moving mechanism 5 and can move forward and backward along the upper surface of the main base 1 under the action of the moving mechanism 5, so that when tightening the bolt on the drainage clamp, when the nut tightening mechanism 2 rotates the nut 41, it can move forward in the direction of the bolt 43.

[0029] In this embodiment, the nut tightening mechanism 4 is further configured to include a sliding base 6 and a first cover plate 7, a first groove 8 is opened on one side of the sliding base 6, and a first through hole 9 is opened on the upper part of the first groove 8; the first cover plate 7 is adapted to the first groove 8 and fixed by bolt connection, and a second through hole 10 is opened on the upper part; a first worm wheel 11, a first worm 12 and a first motor 45 are arranged from top to bottom in the first groove 8; the first worm wheel 11 is meshed with the first worm 12, and the center thereof is nut-shaped; a first outer gear ring 13 is arranged on one side of the first worm 12; a first transmission gear 14 is fixedly connected to the output shaft of the first motor 45, and the first transmission gear 14 is meshed with the first outer gear ring 13; the centers of the first through hole 9, the second through hole 10 and the first worm wheel 11 are on the same straight line. When in use, the first transmission gear 14 is driven to rotate by the first motor 45, thereby driving the first outer ring gear 13 to rotate, and the first worm 12 rotates synchronously, thereby driving the first worm wheel 11 to rotate. When rotating, the nut-shaped through hole at the center of the first worm wheel 11 can drive the nut 41 to rotate and be fastened to the bolt 43.

[0030] In this embodiment, the bolt clamping mechanism 4 is further provided to include a second groove 15 and a second cover plate 16 opened at the rear end of the main base 1; a third through hole 17 is opened at the upper part of the second groove 15, and a plurality of fan-shaped annular protrusions 19 are uniformly arranged along the third through hole 17 on the inner side thereof, and a fan-shaped annular notch 20 is formed between adjacent fan-shaped annular protrusions 19; the second cover plate 16 is adapted to the opening of the second groove 15 and is fixedly connected by bolts, and a fourth through hole 18 is opened at the upper part thereof, and a plurality of cover plate notches 21 corresponding to the fan-shaped annular notches 20 are uniformly arranged outward along the edge of the fourth through hole 18; a second worm gear 22, a second worm 23 and a second motor 24 are arranged in the second groove 15 from top to bottom; the second worm gear 22 is in a circular ring shape and is arranged outside the fan-shaped annular protrusions 19, and the outer gear ring thereof is meshed and connected with the second worm 23, and a plurality of arc-shaped through grooves 25 are uniformly arranged on the ring body thereof from the edge of the inner through hole to the outer gear ring, and a pin shaft 26 is arranged in each arc-shaped through groove 25, and both ends of the pin shaft 26 are respectively connected and fixed to both ends of a top block 27 in a "C" shape, and the top block 27 can be pushed into or withdrawn from the fan-shaped notch 20 when the second worm gear 22 rotates; one end of the second worm 23 is provided with a second external gear ring 28; a second transmission gear 29 is fixedly connected to the output shaft of the second motor 24, and the second transmission gear 29 is meshed and connected with the second external gear ring 28; the centers of the third through hole 17, the second worm gear 22, the fourth through hole 18 and the first worm gear 11 are on the same straight line. When the second motor 24 drives the second transmission gear 29 to rotate, the second transmission gear 29 drives the second external gear ring 28 to rotate, and then the second worm 23 rotates synchronously. At the same time, the second worm 23 drives the second worm gear 22 to rotate. When the second worm gear 22 rotates, the pin shafts 26 will move in the arc-shaped through grooves 25, and then the top blocks 27 connected to the pin shafts 26 will contract inward or expand outward, so as to clamp or loosen the head of the bolt 43 during use. At the same time, this clamping or loosening method can be suitable for bolts 43 of different specifications, and has strong practicability.

[0031] In this embodiment, the moving mechanism 5 is further provided to include a lead screw 30; a lead screw motor 31 is arranged at the end of the lead screw 30, and guide rails 32 are symmetrically arranged on both sides thereof; the sliding base 6 is arranged on the lead screw 30 and the guide rails 32, and when the lead screw motor 31 drives the lead screw 30 to rotate forward or backward, the sliding base 6 can move back and forth along the lead screw 30 and the guide rails 32.

[0032] Further, in this embodiment, a third groove 33 is arranged on the upper surface of the main base 1, and three through holes are respectively opened at the front and rear ends of the third groove 33 and the bottom of the sliding base 6 correspondingly. The lead screw 30 is installed in the through hole in the middle of the third groove 33 and the sliding base 6, and the guide rails 32 are respectively installed in the two through holes on both sides of the third groove 33 and the sliding base 6.

[0033] In this embodiment, the grip assembly 3 is further configured to include a grip 34, the length of which is adjusted as needed; the top of the grip 34 is connected and fixed to the bottom of the main base 1, and a tail cover 35 is provided at its bottom, a plurality of buttons 38 are provided on its outer side, and a battery 36 and a controller 37 are provided inside thereof; the controller 37, the first motor 45, the second motor 24 and the screw motor 31 are respectively connected to the battery 36 through lines; the first motor 45, the second motor 24, the screw motor 31 and the plurality of buttons 38 are respectively connected to the controller 37 through lines. In this embodiment, the plurality of buttons 38 are used to input control signals to the controller 37 to control the forward and reverse rotation of the first motor 45, the second motor 24 and the screw motor 31, so as to complete the normal use of the nut tightening mechanism, the bolt tightening mechanism and the moving mechanism.

[0034] Embodiment 2:

[0035] On the basis of Example 1, a camera 39 is further installed in the middle of the main base 1, and a display 44 is arranged on the outside of the handle 34. The camera 39 and the display 44 are respectively connected to the controller 37 through lines.

[0036] In this embodiment, a mounting seat 40 is provided on the main base 1 , and the camera 39 is mounted on the mounting seat 40 .

[0037] When the bolt pre-tightening device for high-voltage line drainage clamp described in the present invention is used, the nut and the bolt head to be tightened are rotated in the nut tightening mechanism and the bolt tightening mechanism respectively, and moved between the two mounting plates of the drainage clamp to be fixed, and the end of the bolt is passed through the through hole of the mounting plate. The device described in the present invention is turned on by pressing a button, and the nut tightening mechanism will move the nut in a rotating state in the direction of the bolt tightening mechanism under the drive of the screw motor until the two mounting plates are completely fixed with the bolt, and then the controller controls the moving mechanism to control the nut tightening mechanism to move in the opposite direction, remove the device from the drainage clamp, and the installation is completed. This installation process can be observed in real time through the camera and the display to ensure the installation quality of the bolts and nuts.

Claims

1. A bolt pre-tightening device for a high-voltage line drain clamp, characterized in that: It includes a main base (1) which is integrally in an "L" shape; a moving mechanism (5) is arranged on the main base (1), a grip assembly (3) is arranged at its bottom, and a nut clamping mechanism (2) and a bolt clamping mechanism (4) are respectively arranged at its front and rear ends; the nut clamping mechanism (2) is movably connected to the moving mechanism (5) and can move back and forth along the upper surface of the main base (1) under the action of the moving mechanism (5). The bolt clamping mechanism (4) includes a second groove (15) opened at the rear end of the main base (1) and a second cover plate (16); a third through hole (17) is opened at the upper part of the second groove (15), and a plurality of fan-shaped annular protrusions (19) are uniformly arranged along the third through hole (17) on its inner side, and a fan-shaped ring notch (20) is formed between adjacent fan-shaped annular protrusions (19); the second cover plate (16) is adapted to and fixedly connected to the opening of the second groove (15), a fourth through hole (18) is opened at its upper part, and a plurality of cover plate notches (21) corresponding to the fan-shaped ring notches (20) are uniformly arranged outward along the edge of the fourth through hole (18); a second worm gear (22), a second worm (23) and a second motor (24) are arranged in the second groove (15) from top to bottom; the second worm gear (22) is in a circular ring shape and is arranged outside the fan-shaped annular protrusions (19), the outer gear ring thereof is meshed and connected with the second worm (23), and a plurality of arc-shaped through grooves (25) are uniformly arranged on its ring body from the inner through hole edge to the outer gear ring, and a pin shaft (26) is arranged in each arc-shaped through groove (25), and both ends of the pin shaft (26) are respectively fixedly connected to both ends of a "C"-shaped top block (27), and the top block (27) can be pushed into or withdrawn from the fan-shaped ring notch (20) when the second worm gear (22) rotates; one end of the second worm (23) is provided with a second external gear ring (28); a second transmission gear (29) is fixedly connected to the output shaft of the second motor (24), and the second transmission gear (29) is meshed and connected with the second external gear ring (28); the third through hole (17), the center of the second worm gear (22), the fourth through hole (18) and the center of the first worm gear (11) are on the same straight line.

2. A bolt pre-tightening device for a high-voltage line drain clamp according to claim 1, characterized in that: The nut tightening mechanism (2) comprises a sliding base (6) and a first cover plate (7); a first groove (8) is provided on one side of the sliding base (6); a first through hole (9) is provided on the upper portion of the first groove (8); the first cover plate (7) is adapted to and connected to the first groove (8), and a second through hole (10) is provided on the upper portion of the first cover plate (7); a first worm wheel (11), a first worm (12) and a first motor (45) are arranged from top to bottom in the first groove (8); the first worm wheel (11) is meshingly connected with the first worm (12), and the center thereof is in a nut shape; a first outer gear ring (13) is provided on one side of the first worm (12); a first transmission gear (14) is fixedly connected to the output shaft of the first motor (45), and the first transmission gear (14) is meshingly connected with the first outer gear ring (13); the centers of the first through hole (9), the second through hole (10) and the first worm wheel (11) are on the same straight line.

3. A bolt pre-tightening device for a high-voltage line drain clamp according to claim 2, characterized in that: The moving mechanism (5) comprises a screw rod (30); a screw rod motor (31) is arranged at the end of the screw rod (30), and guide rails (32) are symmetrically arranged on both sides of the screw rod; the sliding base (6) is arranged on the screw rod (30) and the guide rail (32), and can move back and forth along the screw rod (30) and the guide rail (32) when the screw rod (30) rotates.

4. A bolt pre-tightening device for a high-voltage line drain clamp according to claim 3, characterized in that: The upper surface of the main base (1) is provided with a third groove (33), and three through holes are respectively provided at the front and rear ends of the third groove (33) and the bottom of the sliding base (6), the screw rod (30) is installed in the through hole in the middle of the third groove (33) and the sliding base (6), and the guide rail (32) is respectively installed in the two through holes on both sides of the third groove (33) and the sliding base (6).

5. A bolt pre-tightening device for high-voltage line drainage clamp according to claim 4, characterized in that: The grip assembly (3) comprises a grip (34); the top of the grip (34) is connected and fixed to the bottom of the main base (1); the bottom of the grip (34) is provided with a tail cover (35); the outer side of the grip is provided with a plurality of buttons (38); the interior of the grip is provided with a battery (36) and a controller (37); the controller (37), the first motor (45), the second motor (24) and the screw motor (31) are respectively connected to the battery (36) through lines; the first motor (45), the second motor (24), the screw motor (31) and the plurality of buttons (38) are respectively connected to the controller (37) through lines.

6. A bolt pre-tightening device for high-voltage line drain clamp according to claim 5, characterized in that: A camera (39) is also installed in the middle of the main base (1), and a display (44) is arranged on the outside of the handle (34). The camera (39) and the display (44) are respectively connected to the controller (37) via lines.

7. A bolt pre-tightening device for high-voltage line drain clamp according to claim 6, characterized in that: A mounting seat (40) is provided on the main base (1), and the camera (39) is mounted on the mounting seat (40).

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