CN111268581B - Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation - Google Patents
Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation Download PDFInfo
- Publication number
- CN111268581B CN111268581B CN202010135370.1A CN202010135370A CN111268581B CN 111268581 B CN111268581 B CN 111268581B CN 202010135370 A CN202010135370 A CN 202010135370A CN 111268581 B CN111268581 B CN 111268581B
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- ground wire
- cross arm
- screw rod
- hook
- angle steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/14—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through pawl-and-ratchet mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention provides a ground wire lifter for back-to-back angle steel operation by using a ground wire cross arm, wherein the ground wire cross arm is provided with angle steel side by side limbs, and the ground wire lifter for back-to-back angle steel operation by using the ground wire cross arm comprises: the periphery of the screw rod is provided with external threads; the ratchet rocker assembly is sleeved outside the upper part of the screw rod and can drive the screw rod to rotate; one end of the cross arm clamp is sleeved outside the screw rod and positioned below the ratchet rocker assembly, and the other end of the cross arm clamp is provided with a clamping groove for accommodating the side-by-side limbs of the angle steel; the connecting plate is connected with the lower part of the other end of the cross arm clamp in a matched manner, and the connecting plate and the cross arm clamp can be fixed at the ground wire cross arm; the hook is arranged at the lower end of the screw rod. The ground wire cross arm is used for working, tools are greatly simplified, and labor intensity of personnel can be reduced.
Description
Technical Field
The invention relates to a ground wire lifter for back-to-back angle steel operation by utilizing a ground wire cross arm.
Background
At present, multiple forms exist in the form of hanging points and hanging the ground wire of the pole tower of the ultra-high voltage transmission line. When the ground wire is required to be lifted for eliminating the defect, a lifting mode such as a lever block, a steel rope, a pulley block and the like is generally used. Disadvantages in the prior art: the tool is heavy, inconvenient to operate, needs to be matched by a plurality of people, and has high labor intensity and long time.
Disclosure of Invention
The invention provides a ground wire lifter for back-to-back angle steel operation by utilizing a ground wire cross arm so as to achieve the purposes of reducing labor intensity and improving maintenance efficiency.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an utilize ground wire cross arm to carry line ware of back-to-back angle steel operation, ground wire cross arm have the angle steel to put side by side limbs, utilize ground wire cross arm to carry line ware of back-to-back angle steel operation includes: the periphery of the screw rod is provided with external threads; the ratchet rocker assembly is sleeved outside the upper part of the screw rod and can drive the screw rod to rotate; one end of the cross arm clamp is sleeved outside the screw rod and positioned below the ratchet rocker assembly, and the other end of the cross arm clamp is provided with a clamping groove for accommodating the side-by-side limbs of the angle steel; the connecting plate is connected with the lower part of the other end of the cross arm clamp in a matched manner, and the connecting plate and the cross arm clamp can be fixed at the ground wire cross arm; the hook is arranged at the lower end of the screw rod.
Further, the cross arm card includes: one end of the connecting plate is provided with a connecting hole matched with the screw rod; the two connecting blocks that the interval set up, the top of two connecting blocks all with the other end fixed connection of connecting plate, form the draw-in groove that is used for holding the angle steel and keeps side by side limbs between two connecting blocks.
Further, the connecting block includes the vertical portion that sets up along vertical direction and the horizontal portion that the horizontal direction set up, and the one end and the lower extreme of vertical portion of horizontal portion are connected, and the other end of horizontal portion is provided with the screw thread mounting hole that is used for connecting the yoke plate.
Further, the ratchet rocker assembly includes: the ratchet handle is sleeved outside the upper part of the screw rod, and an internal thread matched with the external thread is arranged in the ratchet handle; the ratchet rocker is sleeved outside the ratchet handle and can drive the ratchet handle to rotate.
Further, the ratchet rocker is a telescopic rod.
Further, a reverser is arranged on the ratchet rocker component.
Further, the hook is connected with the screw rod through a hook connector.
Further, the upper end of the hook connector is provided with a circular mounting hole, the lower end of the screw rod is arranged in the circular mounting hole in a penetrating mode, and the lower end of the screw rod is fixedly connected with the upper end of the hook connector through a bolt.
Further, a hook clamping hole is further formed in the hook connector, the hook comprises a straight rod section and a hook body, the upper end of the straight rod section is clamped at the upper end of the hook clamping hole, the lower end of the straight rod section penetrates through the hook clamping hole and is arranged outside the hook connector, and the hook body is detachably arranged at the lower end of the straight rod section.
Further, the upper end of the hook clamping hole is of a semicircular spherical structure, and the arc-shaped surface of the semicircular spherical structure faces downwards.
The ground wire cross arm is used for working, tools are greatly simplified, and labor intensity of personnel can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cross arm card according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a hook connector according to an embodiment of the present invention.
Reference numerals in the drawings: 1. a stop nut; 2. a screw rod; 3. a ratchet handle; 4. a ratchet rocker; 5. a thrust bearing; 6. a cross arm clip; 7. a yoke plate; 8. a hook connector; 9. a hook.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 3, the embodiment of the invention provides a ground wire lifter for back-to-back angle steel operation by using a ground wire cross arm, wherein the ground wire cross arm is provided with angle steel side-by-side limbs, and the ground wire lifter for back-to-back angle steel operation by using the ground wire cross arm comprises a screw rod 2, a ratchet rocker assembly, a cross arm clamp 6, a connecting plate 7 and a hook 9. The outer periphery of the screw rod 2 is provided with external threads. The ratchet rocker assembly is sleeved outside the upper part of the screw rod 2, and can drive the screw rod 2 to rotate. One end of the cross arm clamp 6 is sleeved outside the screw rod 2 and positioned below the ratchet rocker assembly, and the other end of the cross arm clamp 6 is provided with a clamping groove for accommodating the side-by-side limbs of the angle steel. The yoke plate 7 is connected with the lower part of the other end of the cross arm clamp 6 in a matched manner, and the yoke plate 7 and the cross arm clamp 6 can be fixed at the ground wire cross arm. The hook 9 is arranged at the lower end of the screw rod 2.
After the electric power operator reaches the operation position, the ground wire lifter is adjusted to a proper stroke (the distance between the hanging point and the ground wire is properly larger than the distance between the hanging point and the ground wire), the hanging hook 9 is hung on the ground wire, the cross arm clamp 6 and the connecting plate 7 are fastened on the ground wire cross arm, and the ratchet rocker assembly is rocked to tighten the wire. The ground wire lifter is stressed vertically with the ground wire. The bearing capacity of the ground wire hanging point is slowly transferred to the ground wire lifter. After the ground wire lifter is completely transferred, the operation is carried out. After the operation is completed, the direction of the ratchet rocker assembly is adjusted, the ratchet rocker assembly is rocked, and the ground wire is loosened. And (5) withdrawing the ground wire lifter, and withdrawing the ground wire lifter from the working position to finish the operation.
According to the embodiment of the invention, the ground wire cross arm is used for operation, so that the tool is greatly simplified, and the labor intensity of personnel can be reduced.
The screw rod 2 is a main bearing component and is formed by processing a 60Si2Mn cylindrical material, so that the screw rod has higher strength and meets the use requirement.
The power transmission line operation is overhead operation, in order to avoid the danger caused by the disconnection of the screw rod 2 and the ratchet rocker assembly when using a larger stroke, the stop nut 1 is arranged on the screw rod 2, so that the special fixture is prevented from being disassembled in the working process, the danger is brought to power operation workers, and even more serious accidents such as line disconnection are caused.
As shown in fig. 1 and 2, the cross arm card 6 includes a connection plate and two connection blocks arranged at intervals. One end of the connecting plate is provided with a connecting hole matched with the screw rod 2. The tops of the two connecting blocks arranged at intervals are fixedly connected with the other end of the connecting plate, and clamping grooves for accommodating the side-by-side limbs of the angle steel are formed between the two connecting blocks.
In the embodiment of the invention, the cross arm clamp 6 and the connecting plate 7 are both made of 60Si2Mn materials, so that the ground wire cross arm clamp is applicable to the condition that two pieces of angle steel of the ground wire cross arm are back-to-back without gaps.
Further, the connecting block includes a vertical portion provided along a vertical direction and a horizontal portion provided along a horizontal direction, one end of the horizontal portion is connected with a lower end of the vertical portion, and the other end of the horizontal portion is provided with a screw mounting hole for connecting the yoke plate 7. The yoke plate 7 is correspondingly connected with the connecting blocks through connecting bolts, and the two connecting blocks and the yoke plate 7 clamp the ground wire cross arm together so as to fix the whole device.
Preferably, a thrust bearing 5 is arranged between the cross arm clamp 6 and the ratchet rocker assembly, and the ratchet rocker assembly rotates stably in the process of using the ratchet rocker assembly, so that the wear is not easy.
The ratchet rocker assembly comprises a ratchet handle 3 and a ratchet rocker 4. The ratchet handle 3 is sleeved outside the upper part of the screw rod 2, and an internal thread matched with the external thread is arranged in the ratchet handle 3. The ratchet rocker 4 is sleeved outside the ratchet handle 3 and can drive the ratchet handle 3 to rotate.
The ratchet rocker 4 is made of LC4 high-strength aluminum alloy, and the self weight is lighter on the premise of ensuring the strength. The ratchet rocker 4 is of a telescopic structure, is convenient to carry and is flexible to operate.
Preferably, the ratchet rocker 4 is provided with a reverser, so that the operation of operators is facilitated. The ratchet rocker 4 can work in a small angle range and can adapt to the working environment with limited on-line working space.
As shown in fig. 1 and 3, the hook 9 is connected with the screw 2 through a hook connector 8. In the embodiment of the invention, the contact area between the hook 9 and the ground wire is large, the hook 9 is a smooth plane, the side edge of the hook 9 is provided with a large round angle, and the hook 9 is provided with a rubber pad, so that the ground wire is effectively prevented from being damaged.
Preferably, the hook 9 is formed by processing a 60Si2Mn material processing center, and has high strength, high hardness and small deformation in the ground wire lifting process. Overcomes the problem of difficult wire lifting caused by the larger elongation rate of the prior steel rope mode. The hook diameter of the hook 9 is about 50mm, which is suitable for most line requirements.
The upper end of the hook connector 8 is provided with a circular mounting hole, the lower end of the screw rod 2 is arranged in the circular mounting hole in a penetrating way, and the lower end of the screw rod 2 is fixedly connected with the upper end of the hook connector 8 through a bolt.
Further, a hook clamping hole is further formed in the hook connector 8, the hook 9 comprises a straight rod section and a hook body, the upper end of the straight rod section is clamped at the upper end of the hook clamping hole, the lower end of the straight rod section penetrates through the hook clamping hole and is arranged outside the hook connector 8, and the hook body is detachably arranged at the lower end of the straight rod section. In the embodiment of the invention, the diameter of the straight rod section is 15mm, and the diameter of the opening at the lower part of the hook clamping hole is 20mm.
In the embodiment of the invention, the upper end of the hook clamping hole is of a semicircular spherical structure, and the arc-shaped surface of the semicircular spherical structure faces downwards. The structure can enable the hook 9 to rotate 360 degrees in the horizontal direction and simultaneously complete rotation (namely swing) at a certain angle in other directions, so that the stress of the hook 9 is uniform.
The specific working process of the embodiment of the invention is as follows:
after the electric power operator reaches the operation position, the ground wire lifter is adjusted to a proper stroke (the distance between the hanging point and the ground wire is properly larger than the distance between the hanging point and the ground wire), the hanging hook 9 is hung on the ground wire, the cross arm clamp 6 and the connecting plate 7 are fastened on the ground wire cross arm, and the ratchet rocker assembly is rocked to tighten the wire. The ground wire lifter is stressed vertically with the ground wire. The bearing capacity of the ground wire hanging point is slowly transferred to the ground wire lifter. After the ground wire lifter is completely transferred, the operation is carried out. After the operation is completed, the direction of the ratchet rocker assembly is adjusted, the ratchet rocker assembly is rocked, and the ground wire is loosened. And (5) withdrawing the ground wire lifter, and withdrawing the ground wire lifter from the working position to finish the operation.
When the ground wire lifter is used for the ground wire with larger load, the two ground wire lifters can be simultaneously matched for use, so that the two ground wire lifters are mutually safe backups, and the operation safety is improved.
In the embodiment of the invention, the length of the screw rod 2 is 550mm, and the maximum stroke is 500mm. The general ground wire hanging requirement is met.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the embodiment of the invention can effectively avoid various dangerous factors, saves time and labor, and is safe and efficient.
According to the embodiment of the invention, the ground wire hanging point cross arm angle steel is used as a supporting point, so that the tool is greatly simplified, and the labor intensity of personnel is reduced.
The embodiment of the invention integrally adopts a two-section structure, the ratchet rocker is positioned above the integral structure, the actual construction operation requirement is met, and when in operation, an operator sits on the ground wire cross arm and bends down to operate, so that the operation is convenient.
The embodiment of the invention applies the retaining nut to the screw rod, and effectively avoids the danger caused by the detachment of the screw rod in the process of using a large stroke.
The embodiment of the invention uses the ratchet device, and the reversing device is arranged on the ratchet device, so that the operation of operators in a limited operation space is greatly facilitated.
The ratchet rocker adopts a telescopic structure, is convenient to carry and operate.
The embodiment of the invention is provided with the hook connector, the hook can rotate 360 degrees in the horizontal direction and can rotate at a certain angle in the vertical direction, so that the stress is more uniform in the use process, and accidents caused by the fact that the stress is concentrated beyond the bearing range of the tool are avoided.
The ratchet rocker is provided with the ratchet handle, so that the operation habit of personnel is met, and the ratchet operation is more convenient and reliable.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical characteristics and technical scheme, technical characteristics and technical scheme can be freely combined for use.
Claims (5)
1. The utility model provides an utilize ground wire lifting device of ground wire cross arm back-to-back angle steel operation, the ground wire cross arm has the angle steel limbs side by side, its characterized in that, utilize ground wire lifting device of ground wire cross arm back-to-back angle steel operation includes:
the periphery of the screw rod (2) is provided with external threads; a retaining nut (1) is arranged on the screw rod (2);
the ratchet rocker assembly is sleeved outside the upper part of the screw rod (2), and the ratchet rocker assembly can drive the screw rod (2) to rotate;
one end of the cross arm clamp (6) is sleeved outside the screw rod (2) and positioned below the ratchet rocker assembly, and the other end of the cross arm clamp (6) is provided with a clamping groove for accommodating the side-by-side limbs of the angle steel; a thrust bearing (5) is arranged between the cross arm clamp (6) and the ratchet rocker group;
the connecting plate (7) is connected with the lower part of the other end of the cross arm clamp (6) in a matching way, and the connecting plate (7) and the cross arm clamp (6) can be fixed at the ground wire cross arm;
the hook (9) is arranged at the lower end of the screw rod (2);
the cross arm card (6) comprises: one end of the connecting plate is provided with a connecting hole matched with the screw rod (2); the two connecting blocks are arranged at intervals, the tops of the two connecting blocks are fixedly connected with the other end of the connecting plate, and clamping grooves for accommodating the angle steel side-by-side limbs are formed between the two connecting blocks;
the connecting block comprises a vertical part and a horizontal part, the vertical part is arranged along the vertical direction, the horizontal part is arranged along the horizontal direction, one end of the horizontal part is connected with the lower end of the vertical part, and the other end of the horizontal part is provided with a threaded mounting hole for connecting a connecting plate (7);
the ratchet rocker assembly includes: the ratchet handle (3) is sleeved outside the upper part of the screw rod (2), and an internal thread matched with the external thread is arranged in the ratchet handle (3); the ratchet rocker (4) is sleeved outside the ratchet handle (3) and can drive the ratchet handle (3) to rotate;
the hook (9) is connected with the screw rod (2) through a hook connector (8);
the upper end of the hook connector (8) is provided with a circular mounting hole, the lower end of the screw rod (2) is arranged in the circular mounting hole in a penetrating mode, and the lower end of the screw rod (2) is fixedly connected with the upper end of the hook connector (8) through bolts.
2. The ground wire lifter operated by the ground wire cross arm back-to-back angle steel according to claim 1, wherein the ratchet rocker (4) is a telescopic rod.
3. The ground wire lifter for back-to-back angle operation with ground wire cross arms of claim 1, wherein the ratchet rocker assembly is provided with a commutator.
4. The ground wire lifter for back-to-back angle steel operation by utilizing the ground wire cross arm according to claim 1, wherein a hook clamping hole is further formed in a hook connector (8), a hook (9) comprises a straight rod section and a hook body, the upper end of the straight rod section is clamped at the upper end of the hook clamping hole, the lower end of the straight rod section penetrates through the hook clamping hole and is arranged outside the hook connector (8), and the hook body is detachably arranged at the lower end of the straight rod section.
5. The ground wire lifter operated by the ground wire cross arm back-to-back angle steel according to claim 4, wherein the upper end of the hook clamping hole is in a semicircular spherical structure, and the arc-shaped surface of the semicircular spherical structure faces downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135370.1A CN111268581B (en) | 2020-03-02 | 2020-03-02 | Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135370.1A CN111268581B (en) | 2020-03-02 | 2020-03-02 | Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111268581A CN111268581A (en) | 2020-06-12 |
| CN111268581B true CN111268581B (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010135370.1A Active CN111268581B (en) | 2020-03-02 | 2020-03-02 | Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111268581B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584697U (en) * | 2009-12-03 | 2010-09-15 | 保定供电公司 | Overhead ground wire crossarm clamp used on 500KV transmission line steel tower |
| CN102237654A (en) * | 2011-07-05 | 2011-11-09 | 河南省电力公司洛阳供电公司 | Tool and method for replacing jumper string at double angle hanging point |
-
2020
- 2020-03-02 CN CN202010135370.1A patent/CN111268581B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584697U (en) * | 2009-12-03 | 2010-09-15 | 保定供电公司 | Overhead ground wire crossarm clamp used on 500KV transmission line steel tower |
| CN102237654A (en) * | 2011-07-05 | 2011-11-09 | 河南省电力公司洛阳供电公司 | Tool and method for replacing jumper string at double angle hanging point |
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| Publication number | Publication date |
|---|---|
| CN111268581A (en) | 2020-06-12 |
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Address after: 102209 7th floor, block C, No.18, Binhe Avenue, future science and Technology City, Changping District, Beijing Applicant after: State Grid Power Space Technology Co.,Ltd. Applicant after: SHAANXI ELESAFETY POWER TECHNOLOGY CO.,LTD. Address before: 102209 7th floor, block C, No.18, Binhe Avenue, future science and Technology City, Changping District, Beijing Applicant before: SGCC GENERAL AVIATION Co.,Ltd. Applicant before: SHAANXI ELESAFETY POWER TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20240204 Address after: 102209 7th floor, block C, No.18, Binhe Avenue, future science and Technology City, Changping District, Beijing Applicant after: State Grid Power Space Technology Co.,Ltd. Country or region after: China Address before: 102209 7th floor, block C, No.18, Binhe Avenue, future science and Technology City, Changping District, Beijing Applicant before: State Grid Power Space Technology Co.,Ltd. Country or region before: China Applicant before: SHAANXI ELESAFETY POWER TECHNOLOGY CO.,LTD. |
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