CN108691452B - Split type electric pole operation, inspection and maintenance device and construction method - Google Patents

Split type electric pole operation, inspection and maintenance device and construction method Download PDF

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Publication number
CN108691452B
CN108691452B CN201810568059.9A CN201810568059A CN108691452B CN 108691452 B CN108691452 B CN 108691452B CN 201810568059 A CN201810568059 A CN 201810568059A CN 108691452 B CN108691452 B CN 108691452B
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China
Prior art keywords
power transmission
rod
pole
frame
adjustable
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Application number
CN201810568059.9A
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Chinese (zh)
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CN108691452A (en
Inventor
韩会涛
刘志辉
周敬召
丁建沼
郑树明
刘玉庆
殷宾辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Pingshan Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Pingshan Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd, Pingshan Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201810568059.9A priority Critical patent/CN108691452B/en
Publication of CN108691452A publication Critical patent/CN108691452A/en
Application granted granted Critical
Publication of CN108691452B publication Critical patent/CN108691452B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like

Abstract

The invention belongs to the technical field of power inspection maintenance, and particularly relates to a split type electric pole operation and inspection maintenance device and a construction method. According to the invention, the supporting frame and the winch are adopted as main construction components, after the electric power maintenance vehicle arrives at the site through carrying equipment, the construction operation is rapidly carried out, the winch is adopted as power, the toppled electric power transmission rod is reset uniformly and slowly, the huge loss caused by power failure construction application and the time loss caused by the fact that large equipment is used for disassembling the cross arm load are avoided, the maximization of the user benefit is effectively ensured, and the smooth completion of the object of minimizing the loss is effectively ensured.

Description

Split type electric pole operation, inspection and maintenance device and construction method
Technical Field
The invention belongs to the technical field of power inspection maintenance, and particularly relates to a split type electric pole operation and inspection maintenance device and a construction method.
Background
In recent years, frequent extreme weather such as rainfall and strong wind appear in China, and the production and life of people are greatly influenced, and electric facilities are easily damaged in the extreme weather, especially rural or suburban areas, power lines are mainly carried through electric power transmission poles, and electric pole overturning accidents are easily caused by larger wind force in the areas with fewer buildings compared with urban areas, so that the situation is solved, the power is concentrated for many times in power supply systems in provinces, cities and places, the difficulty and the thinking are overcome, the solution of the problem is sought, and the aims of maximizing the benefit of users and minimizing the loss are continuously achieved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a split type electric pole operation, inspection and maintenance device and a construction method, which can realize live operation, avoid the disassembly of a supporting load on an electric power transmission pole, shorten the maintenance time and avoid the loss caused by power failure.
The invention adopts the specific technical scheme that:
the utility model provides a split type pole fortune is examined maintenance device, includes two sets of semi-circular structure's of symmetry setting in electric power transmission pole both sides support frame, two sets of support frames between be provided with the drawknot pole, the support frame between still be provided with hoisting accessory, hoisting accessory include unable adjustment base and lifting frame, the lifting frame include the adjustable whipstock that sets up between two sets of support frames and set up the fixed pulley on adjustable whipstock, unable adjustment base on be provided with the hoist engine, unable adjustment base include foundation pit board and horizontal stand and vertical frame, foundation pit board, horizontal stand, vertical frame enclose into triangle-shaped structure, unable adjustment base form detachable fixed connection with two sets of support frames with the help of the bolt hole that sets up on the horizontal stand, the hoist engine set up on the horizontal stand;
the safety anti-falling device comprises a safety hoop fixed on an electric power transmission rod, the safety hoop is connected with an anti-falling rod by virtue of a rubber rope, the round edge of the support frame is provided with an anti-falling hook with a J-shaped structure, and the tip end of the anti-falling hook is arranged towards the top end of the support frame;
the construction method of the split type pole operation, inspection and maintenance device comprises the following steps:
a. temporarily supporting the toppled power transmission pole to prevent further toppling, and digging a toppled reverse side foundation of the power transmission pole to form a construction foundation pit;
b. a fixed base is arranged in a construction foundation pit;
c. two groups of support frames are respectively arranged on two sides of a fixed base, and a drawknot rod, a lifting frame and a fixed pulley are arranged to complete the installation of the maintenance device;
d. the electric power transmission pole is provided with a hoop, and the hoop is used as a starting point to bypass the fixed pulley by means of a steel wire rope and then is connected with the winch;
e. removing the temporary support, simultaneously starting a winch to pull the power transmission pole to a vertical position, removing the maintenance device after temporary inclined pulling and fixing on the anchor ear, and re-making the foundation pit.
f. And (5) removing the temporary cable-stayed fixation to finish the construction.
The adjustable cross bar is connected with the support frame by means of the adjustable swing arms, the adjustable swing arms are symmetrically arranged on the support frames on two sides, the adjustable swing arms comprise support rods and adjustable telescopic rods, the support rods, the adjustable telescopic rods and the support frames are hinged to form a triangular structure, the adjustable telescopic rods are bolt telescopic rods, the adjustable cross bar is horizontally arranged on the two adjustable swing arms on two sides, and the end parts of the adjustable cross bar are fixedly connected with hinge points of the support rods and the bolt telescopic rods.
The tie rod is fixed by means of a bolt fastener arranged on the supporting frame.
The base pit plate is of a plate-shaped structure, and fixed pins are further arranged on the base pit plate in a penetrating mode.
The vertical frame is a bolt telescopic rod.
In the step a of the construction method of the split type pole operation, inspection and maintenance device, the excavation depth of the construction foundation pit is the same as the burial depth of the power transmission pole, the pit bottom plane of the construction foundation pit forms an included angle of 30 degrees with the horizontal plane, and the pit bottom plane is tamped.
In the step b of the construction method of the split type pole operation, inspection and maintenance device, the installation method of the fixing base is that the base pit plate, the horizontal frame and the vertical frame are assembled into the fixing base with a triangular structure, the fixing base is fixed on the pit bottom plane through fixing leg nails, and the vertical frame is adjusted to be positioned in the horizontal plane, so that the installation of the fixing base is completed.
The beneficial effects of the invention are as follows:
according to the invention, the supporting frame and the winch are adopted as main construction components, after the electric power maintenance vehicle arrives at the site through carrying equipment, the construction operation is rapidly carried out, the winch is adopted as power, the toppled electric power transmission rod is reset uniformly and slowly, the huge loss caused by power failure construction application and the time loss caused by the fact that large equipment is used for disassembling the cross arm load are avoided, the maximization of the user benefit is effectively ensured, and the smooth completion of the object of minimizing the loss is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a support frame;
FIG. 3 is a right side view of the crane portion;
FIG. 4 is a schematic structural view of a stationary base;
in the attached drawings, 1, a supporting frame, 2, a drawknot rod, 3, an adjustable transverse bar, 4, a fixed pulley, 5, a winch, 6, a base pit plate, 7, a horizontal frame, 8, a vertical frame, 9, a safety hoop, 10, an anti-drop rod, 11, an anti-drop hook, 12, a supporting rod, 13, an adjustable telescopic rod, 14, a fixed foot nail, 15 and an anti-slip table.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific examples:
the invention discloses a split type pole operation and maintenance device, which is shown in fig. 1 to 4, and comprises two groups of semicircular support frames 1 symmetrically arranged on two sides of an electric power transmission pole, wherein a drawknot rod 2 is arranged between the two groups of support frames 1, a lifting device is further arranged between the two groups of support frames 1, the lifting device comprises a fixed base and a lifting frame, the lifting frame comprises an adjustable cross bar 3 arranged between the two groups of support frames 1 and a fixed pulley 4 arranged on the adjustable cross bar 3, a winch 5 is arranged on the fixed base, the fixed base comprises a base pit plate 6, a horizontal frame 7 and a vertical frame 8, the base pit plate 6, the horizontal frame 7 and the vertical frame 8 form a triangular structure, the fixed base is detachably and fixedly connected with the two groups of support frames 1 by means of bolt holes arranged on the horizontal frame 7, and the winch 5 is arranged on the horizontal frame 7; when the invention is used, the symmetrically arranged support frames 1 are supported by the tie rods 2, so that the risk of collapse of the support frames 1 in use is prevented, the arranged fixed base is of a triangular structure and is used for bearing the support frames 1 while being connected with a construction foundation pit arranged on the ground, and the arranged winch 5 is connected with an emergency generator and then used for pulling up a power transmission rod.
Further, the safety anti-falling device comprises a safety hoop 9 fixed on an electric power transmission rod, as shown in fig. 1, the safety hoop 9 is connected with an anti-falling rod 10 by means of a rubber rope, the circular edge of the support frame 1 is provided with an anti-falling hook 11 with a J-shaped structure, as shown in the left side part of the support frame 1 in fig. 1 and 2, and the tip of the anti-falling hook 11 is arranged towards the top end vertex direction of the support frame 1; when the electric power transmission pole is pulled up, the safety hoop 9 moves along with the electric power transmission pole, the anti-falling rod 10 is pulled by the rubber rope, the anti-falling rod 10 spans the anti-falling hook 11 step by step, when the electric power transmission pole is overturned again, the anti-falling rod 10 falls into the anti-falling hook 11 nearby, so that the electric power transmission pole is supported, the electric power transmission pole is prevented from being overturned directly, the safety of personnel and equipment is guaranteed, and the electric power transmission line is prevented from being damaged secondarily.
The construction method of the split type pole operation, inspection and maintenance device comprises the following steps:
a. temporarily supporting the toppled power transmission pole to prevent further toppling, and digging a toppled reverse side foundation of the power transmission pole to form a construction foundation pit;
b. a fixed base is arranged in a construction foundation pit;
c. two groups of support frames 1 are respectively arranged on two sides of a fixed base, a drawknot rod 2, a lifting frame and a fixed pulley 4 are arranged, and the maintenance device is arranged;
d. the electric power transmission pole is provided with a hoop, and the hoop is used as a starting point to bypass the fixed pulley 4 by means of a steel wire rope and then is connected with the winch 5;
e. removing the temporary support, simultaneously starting a winch 5 to pull the power transmission pole to a vertical position, removing the maintenance device after temporary inclined pulling and fixing on the anchor ear, and re-making the foundation pit, wherein the temporary inclined pulling adopts steel wire ropes to inclined pulling by taking the anchor ear in the step d as a fixed point, and the number of the steel wire ropes is at least 3 groups.
f. And (5) removing the temporary cable-stayed fixation to finish the construction.
Further, adjustable bar 3 be connected with support frame 1 with the help of adjustable swing arm, adjustable swing arm symmetry set up on both sides support frame 1, adjustable swing arm include bracing piece 12, adjustable telescopic link 13, support frame 1 articulated form the triangle-shaped structure, adjustable telescopic link 13 be the bolt telescopic link, adjustable bar 3 level set up on the adjustable swing arm of both sides, the tip of adjustable bar 3 and bracing piece 12, the pin joint fixed connection of bolt telescopic link. The bolt telescopic link is split structure, including the body pole of telescopic link and both sides, be provided with a set of bolt hole on body pole and the telescopic link respectively, it is fixed with the telescopic link to misplace the body pole of suitable length with the help of the bolt, guarantees can enough adjust length, can guarantee joint strength's effect again.
Further, in order to facilitate the disassembly of the tie rod 2, the tie rod 2 is fixed by means of a bolt fastener arranged on the support frame 1, the bolt fastener adopts a bolt fastener fitting on the scaffold, the cost is low, and the disassembly and the assembly are convenient, and meanwhile, the good connection strength can be ensured.
Further, the foundation pit plate 6 has a plate-shaped structure, and fixing pins 14 are further provided on the foundation pit plate 6 in a penetrating manner. The foundation pit plate 6 is nailed into the ground by means of the fixed foot nails 14, the connection between the foundation pit plate 6 and the ground is ensured, the stability of equipment in use is ensured, construction is performed by means of the mode, the method is particularly suitable for road ground or pavement ground after hardening and tiling, construction traces are left in the foundation pit, secondary damage to surrounding ground surfaces is avoided, later ground surface recovery is facilitated, the time for municipal departments to lay the ground again is shortened, the method is used in front of disasters, the maximization of user benefits is effectively ensured, and the provision condition of a minimum target is lost.
Further, the vertical frame 8 is a bolt telescopic rod, the structure of the vertical frame 8 is the same as that of the adjustable telescopic rod 13, and the adjustable telescopic rod is adjusted by means of bolts, so that good adjusting performance is guaranteed.
Further, in the step a of the construction method of the split type pole operation, inspection and maintenance device, the excavation depth of the construction foundation pit is the same as the burial depth of the power transmission pole, the pit bottom plane of the construction foundation pit forms an included angle of 30 degrees with the horizontal plane, the pit bottom plane is tamped, the pit bottom plane is obliquely arranged, the phase change is carried out to increase the pit bottom area, the fixing base can be fixed in a larger area, and meanwhile, after the fixing base is obliquely arranged, the soil at the position of the ground close to the ground surface is harder due to more rolling of vehicles and pedestrians, and the fixing leg nails 14 arranged at the moment can have just connecting strength.
Further, in step b of the construction method of the split type pole inspection maintenance device, as shown in fig. 4, the installation method of the fixing base is that the base pit plate 6, the horizontal frame 7 and the vertical frame 8 are assembled into a fixing base with a triangular structure, the fixing base is fixed on the pit bottom plane by fixing pins 14, and the vertical frame 8 is adjusted to place the horizontal frame 7 in a horizontal plane, so that the installation of the fixing base is completed.
Further, foundation ditch board 6 on be provided with and prevent slip table 15, slip table 15 stretches to the power transmission pole direction, slip table 15 on be provided with the through-hole, slip table 15 perk outside foundation ditch board 6, the perk angle is 30-45, slip table 15 is last to set up the through-hole, see through this through-hole also to set up fixed spike 14, this fixed spike 14 lower extreme is inclined towards the power transmission pole bottom, the power transmission pole is erect its bottom gradually and is supported on fixed spike 14 at the pulling-up in-process, avoid the power transmission pole sideslip, simultaneously for foundation ditch board 6 and unable adjustment base with holding power, avoid equipment to take place the activity.
According to the invention, the rod body of the transmission rod is bound by the anchor ear without adopting a mode of hoisting the upper end part of the rod body by the crane, and power equipment at the upper end part of the transmission rod, components such as the transmission line, the support anchor ear and the insulator are not hindered in the operation mode, so that the disassembly-free construction of the transmission rod is ensured, and the live construction can be performed under the condition of permission, so that the construction time is further shortened.

Claims (7)

1. The utility model provides a split type pole fortune is examined maintenance device which characterized in that: the lifting device comprises two groups of support frames (1) which are symmetrically arranged on two sides of an electric power transmission rod, tie rods (2) are arranged between the two groups of support frames (1), lifting devices are further arranged between the support frames (1), each lifting device comprises a fixed base and a lifting frame, each lifting frame comprises an adjustable transverse bar (3) arranged between the two groups of support frames (1) and a fixed pulley (4) arranged on the adjustable transverse bar (3), a winch (5) is arranged on each fixed base, each fixed base comprises a foundation pit plate (6), a horizontal frame (7) and a vertical frame (8), the foundation pit plates (6), the horizontal frames (7) and the vertical frames (8) form a triangular structure, each fixed base is detachably and fixedly connected with the two groups of support frames (1) through bolt holes arranged on the horizontal frame (7), and each winch (5) is arranged on the horizontal frame (7);
the safety anti-drop device comprises a safety hoop (9) fixed on an electric power transmission rod, the safety hoop (9) is connected with an anti-drop rod (10) by means of a rubber rope, an anti-drop hook (11) with a J-shaped structure is arranged at the round edge of the support frame (1), and the tip of the anti-drop hook (11) is arranged towards the top end vertex direction of the support frame (1); when the electric power transmission rod is pulled up, the safety hoop 9 moves along with the electric power transmission rod, the anti-falling rod 10 moves along with the electric power transmission rod under the pulling of the rubber rope, the anti-falling rod 10 is pulled by the rubber rope and gradually spans the anti-falling hook 11, and when the electric power transmission rod is overturned again, the anti-falling rod 10 falls into the anti-falling hook 11 nearby;
the construction method of the split type pole operation, inspection and maintenance device comprises the following steps:
a. temporarily supporting the toppled power transmission pole to prevent further toppling, and digging a toppled reverse side foundation of the power transmission pole to form a construction foundation pit;
b. a fixed base is arranged in a construction foundation pit;
c. two groups of support frames (1) are respectively arranged on two sides of a fixed base, and a drawknot rod (2), a lifting frame and a fixed pulley (4) are arranged to finish the installation of the maintenance device;
d. the electric power transmission pole is provided with a hoop, and the hoop is used as a starting point to bypass the fixed pulley (4) by means of a steel wire rope and then is connected with the winch (5);
e. removing the temporary support, starting a winch (5) to pull the power transmission pole to a vertical position, removing a maintenance device after temporary inclined pulling fixation is carried out on the anchor ear, and re-making the foundation pit;
f. and (5) removing the temporary cable-stayed fixation to finish the construction.
2. A split pole inspection and repair device in accordance with claim 1, wherein: the adjustable cross bar (3) is connected with the support frame (1) by means of the adjustable swing arms, the adjustable swing arms are symmetrically arranged on the support frames (1) on two sides, each adjustable swing arm comprises a support rod (12), an adjustable telescopic rod (13), the support rods (12), the adjustable telescopic rods (13) and the support frame (1) are hinged to form a triangular structure, the adjustable telescopic rods (13) are bolt telescopic rods, the adjustable cross bar (3) is horizontally arranged on the adjustable swing arms on two sides, and the end portions of the adjustable cross bar (3) are fixedly connected with the hinge points of the support rods (12) and the bolt telescopic rods.
3. A split pole inspection and repair device in accordance with claim 1, wherein: the tie rod (2) is fixed by means of a bolt fastener arranged on the support frame (1).
4. A split pole inspection and repair device in accordance with claim 1, wherein: the foundation pit plate (6) is of a plate-shaped structure, and fixed pins (14) are further arranged on the foundation pit plate (6) in a penetrating mode.
5. A split pole inspection and repair device in accordance with claim 1, wherein: the vertical frame (8) is a bolt telescopic rod.
6. A split pole inspection and repair device in accordance with claim 1, wherein: in the step a of the construction method of the split type pole operation, inspection and maintenance device, the excavation depth of the construction foundation pit is the same as the burial depth of the power transmission pole, the pit bottom plane of the construction foundation pit forms an included angle of 30 degrees with the horizontal plane, and the pit bottom plane is tamped.
7. A split pole inspection and repair device in accordance with claim 4, wherein: in the step b of the construction method of the split type pole operation, inspection and maintenance device, the installation method of the fixing base is that a base pit plate (6), a horizontal frame (7) and a vertical frame (8) are assembled into the fixing base with a triangular structure, the fixing base is fixed on a pit bottom plane through fixing pins (14), and the vertical frame (8) is adjusted to be arranged in a horizontal plane, so that the installation of the fixing base is completed.
CN201810568059.9A 2018-06-05 2018-06-05 Split type electric pole operation, inspection and maintenance device and construction method Active CN108691452B (en)

Priority Applications (1)

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CN201810568059.9A CN108691452B (en) 2018-06-05 2018-06-05 Split type electric pole operation, inspection and maintenance device and construction method

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Application Number Priority Date Filing Date Title
CN201810568059.9A CN108691452B (en) 2018-06-05 2018-06-05 Split type electric pole operation, inspection and maintenance device and construction method

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CN108691452A CN108691452A (en) 2018-10-23
CN108691452B true CN108691452B (en) 2023-08-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111021816B (en) * 2019-11-27 2021-06-29 国网山东省电力公司经济技术研究院 Wire pole dismouting auxiliary device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115450A (en) * 1982-02-17 1983-09-07 Concrete Utilities Apparatus for erecting a transmission post or lighting mast
CN103206106A (en) * 2013-04-26 2013-07-17 国家电网公司 Pole correcting device and pole correcting method using pole correcting device
CN203271244U (en) * 2013-05-31 2013-11-06 国家电网公司 Full-automatic telegraph pole centering device
CN105442932A (en) * 2015-11-13 2016-03-30 高世龙 Power grid pole burying device and construction method
CN105442934A (en) * 2015-11-18 2016-03-30 国网山东青州市供电公司 Two-way torque cement pole corrector
CN105839982A (en) * 2015-10-28 2016-08-10 国网山东省电力公司青州市供电公司 Portable power pole correction first-aid repair tool
CN107916823A (en) * 2017-11-30 2018-04-17 江西省互电气有限公司 A kind of electric pole aids in fixing bracket
CN207420189U (en) * 2017-04-26 2018-05-29 国网山东省电力公司单县供电公司 A kind of electric pole apparatus for correcting for complex environment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115450A (en) * 1982-02-17 1983-09-07 Concrete Utilities Apparatus for erecting a transmission post or lighting mast
CN103206106A (en) * 2013-04-26 2013-07-17 国家电网公司 Pole correcting device and pole correcting method using pole correcting device
CN203271244U (en) * 2013-05-31 2013-11-06 国家电网公司 Full-automatic telegraph pole centering device
CN105839982A (en) * 2015-10-28 2016-08-10 国网山东省电力公司青州市供电公司 Portable power pole correction first-aid repair tool
CN105442932A (en) * 2015-11-13 2016-03-30 高世龙 Power grid pole burying device and construction method
CN105442934A (en) * 2015-11-18 2016-03-30 国网山东青州市供电公司 Two-way torque cement pole corrector
CN207420189U (en) * 2017-04-26 2018-05-29 国网山东省电力公司单县供电公司 A kind of electric pole apparatus for correcting for complex environment
CN107916823A (en) * 2017-11-30 2018-04-17 江西省互电气有限公司 A kind of electric pole aids in fixing bracket

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