CN111268581A - Ground wire lifter operating by utilizing back-to-back angle iron of ground wire cross arm - Google Patents
Ground wire lifter operating by utilizing back-to-back angle iron of ground wire cross arm Download PDFInfo
- Publication number
- CN111268581A CN111268581A CN202010135370.1A CN202010135370A CN111268581A CN 111268581 A CN111268581 A CN 111268581A CN 202010135370 A CN202010135370 A CN 202010135370A CN 111268581 A CN111268581 A CN 111268581A
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- Prior art keywords
- ground wire
- cross arm
- screw rod
- hook
- ratchet
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- 229910000746 Structural steel Inorganic materials 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 235000000396 iron Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000007547 defect Effects 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
- 239000000725 suspension Substances 0.000 description 1
Images
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
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- 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 operating by utilizing back-to-back angle iron of a ground wire cross arm, wherein the ground wire cross arm is provided with side-by-side limbs of the angle iron, and the ground wire lifter operating by utilizing the back-to-back angle iron of 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 wheel 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 yoke plate is matched and connected with the lower part of the other end of the cross arm card, and the yoke plate and the cross arm card can be fixed at the ground wire cross arm; and the hook is arranged at the lower end of the screw rod. The ground wire cross arm has the advantages that the ground wire cross arm is used for operation, tools are greatly simplified, and labor intensity of workers can be reduced.
Description
Technical Field
The invention relates to a ground wire lifter operating by utilizing back-to-back angle iron of a ground wire cross arm.
Background
At present, the ground wire hanging points and hanging forms of the pole tower of the ultra-high voltage transmission line have multiple forms. When the ground wire needs to be lifted to eliminate the defect, wire lifting modes such as lever block, steel cable and pulley block are generally used. The disadvantages in the prior art are: the tools are heavy, the operation is inconvenient, multiple persons are needed for cooperation, the labor intensity is high, and the time consumption is long.
Disclosure of Invention
The invention provides a ground wire lifter which operates by utilizing back-to-back angle iron of a ground wire cross arm so as to achieve the purposes of reducing labor intensity and improving maintenance efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an utilize ground wire cross arm to carry line ware of angle steel operation back to back, ground wire cross arm have the angle steel and arrange the limb side by side, utilize ground wire cross arm to carry line ware of angle steel operation back to include: 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 wheel 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 yoke plate is matched and connected with the lower part of the other end of the cross arm card, and the yoke plate and the cross arm card can be fixed at the ground wire cross arm; and 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 used for being matched with the screw rod; 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 between two connecting blocks to be used for holding the draw-in groove that the angle steel limb was abreast.
Further, the connecting block includes the vertical portion that sets up along vertical direction and the horizontal part that the horizontal direction set up, and the one end of horizontal part is connected with the lower extreme of vertical portion, and the other end of horizontal part is provided with the screw thread mounting hole that is used for connecting the yoke plate.
Further, the ratchet rocker assembly includes: the ratchet wheel handle is sleeved outside the upper part of the screw rod and internally provided with an internal thread matched with the external thread; 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 commutator is arranged on the ratchet wheel rocker assembly.
Further, the hook is connected with the screw rod through a hook connector.
Furthermore, a round mounting hole is formed in the upper end of the hook connector, the lower end of the screw rod penetrates through the round mounting hole, and the lower end of the screw rod is fixedly connected with the upper end of the hook connector through a bolt.
Further, still be provided with couple joint hole in the couple connector, the couple includes straight pole section and couple body, and straight pole section upper end joint is in the upper end in couple joint hole, and the lower extreme of straight pole section passes couple joint hole and places in outside the couple connector, and the couple body can set up the lower extreme at straight pole section detachably.
Furthermore, the upper end of the hook clamping hole is of a semi-sphere structure, and the arc surface of the semi-sphere structure faces downwards.
The ground wire cross arm has the advantages that the ground wire cross arm is used for operation, tools are greatly simplified, and labor intensity of workers can be reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cross arm card according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hook connector in an embodiment of the invention.
Reference numbers in the figures: 1. a non-return nut; 2. a screw rod; 3. a ratchet handle; 4. a ratchet rocker; 5. a thrust bearing; 6. a cross arm card; 7. a yoke plate; 8. a hook connector; 9. and (4) hanging hooks.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, the embodiment of the present invention provides a ground wire lifter operating by using back-to-back angle irons of a ground wire cross arm, the ground wire lifter operating by using back-to-back angle irons of the ground wire cross arm has side-by-side angle irons, and comprises a screw rod 2, a ratchet rocker assembly, a cross arm clamp 6, a link plate 7 and a hook 9. The periphery of the screw rod 2 is provided with external threads. The ratchet rocker component 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 is positioned below the ratchet wheel rocker assembly, and the other end of the cross arm clamp 6 is provided with a clamping groove for accommodating angle steel side-by-side limbs. The yoke plate 7 is connected with the lower part of the other end of the cross arm card 6 in a matching way, and the yoke plate 7 and the cross arm card 6 can be fixed at the position of the ground wire cross arm. The hook 9 is arranged at the lower end of the screw rod 2.
After the electric power operator arrives at the operation position, the ground wire lifter is adjusted to a proper stroke (properly larger than the distance between the hanging point and the ground wire), the hook 9 is used for hanging the ground wire, the cross arm clamp 6 and the connecting plate 7 are fastened on the cross arm of the ground wire, and the ratchet wheel rocker assembly is shaken to tighten the wire. The ground wire lifter is vertically stressed with the ground wire. The bearing capacity of the ground wire hanging point is slowly transferred to the ground wire lifter. And after the ground wire is completely transferred to the ground wire lifter, the operation is carried out. After the operation is finished, the direction of the ratchet wheel rocker assembly is adjusted, the ratchet wheel rocker assembly is shaken, and the ground wire is loosened. And withdrawing the ground wire lifter, and withdrawing the operation position to finish the operation.
The embodiment of the invention utilizes the ground wire cross arm to operate, greatly simplifies tools and can reduce the labor intensity of personnel.
It should be noted that the screw rod 2 is a main force-bearing component, is processed by a 60Si2Mn cylindrical material, has higher strength, and meets the use requirements.
The transmission line operation is high altitude construction, in order to avoid the lead screw 2 and the ratchet rocker subassembly throw off and cause danger when using great stroke, sets up stopping nut 1 on lead screw 2, prevents that special fixture from disintegrating in the course of the work, brings danger for the electric power operation workman, causes more serious accidents such as circuit disconnection even.
As shown in fig. 1 and 2, the cross arm card 6 includes a connecting plate and two connecting blocks arranged at intervals. One end of the connecting plate is provided with a connecting hole used for being 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 a clamping groove used for accommodating the side-by-side limbs of the angle steel is formed between the two connecting blocks.
In the embodiment of the invention, the cross arm card 6 and the yoke plate 7 are both made of 60Si2Mn material, so that the invention is suitable for the situation that two pieces of angle steel of the ground wire cross arm are back-to-back without gaps.
Further, the connecting block includes the vertical portion that sets up along vertical direction and the horizontal part that the horizontal direction set up, and the one end and the lower extreme of vertical portion of horizontal part are connected, and the other end of horizontal part is provided with the screw thread mounting hole that is used for connecting yoke plate 7. The yoke plate 7 is correspondingly connected with the connecting blocks through connecting bolts, and the ground wire cross arm is clamped by the two connecting blocks and the yoke plate 7 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 and is not easy to wear in the process of using the ratchet rocker assembly.
The ratchet rocker assembly comprises a ratchet handle 3 and a ratchet rocker 4. The ratchet wheel 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 wheel 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 has light self weight on the premise of ensuring strength. The ratchet rocker 4 is of a telescopic structure, is convenient to carry and flexible in operation.
Preferably, a reverser is arranged on the ratchet rocker 4, so that the operation of an operator 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 to the screw 2 via a hook connector 8. In the embodiment of the invention, the contact area of the hook 9 and the ground wire is larger and is a smooth plane, the side edge of the hook 9 is provided with a larger fillet, 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 processed by a 60Si2Mn material processing center, and has high strength, high hardness and small deformation in the process of lifting the ground wire. The problem that the wire lifting is difficult due to the fact that the steel cable has large elongation in the original steel cable mode is solved. The hook 9 has a hook diameter of about 50mm and is suitable for most line requirements.
A circular mounting hole is formed in the upper end of the hook connector 8, the lower end of the screw rod 2 penetrates through the circular mounting hole, 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, still be provided with couple joint hole in the couple connector 8, couple 9 includes straight pole section and couple body, and straight pole section upper end joint is in the upper end in couple joint hole, and the lower extreme of straight pole section passes couple joint hole and places in outside couple connector 8, and the couple body can set up the lower extreme at straight pole section with dismantling. In the embodiment of the invention, the diameter of the straight rod section is 15mm, and the diameter of the lower opening of the hook clamping hole is 20 mm.
In the embodiment of the invention, the upper end of the hook clamping hole is of a semi-spherical structure, and the arc surface of the semi-spherical structure faces downwards. The structure can enable the hook 9 to rotate in 360 degrees in the horizontal direction and also can finish rotation (namely swing) in certain angles in other directions, so that the hook 9 is stressed uniformly.
The specific working process of the embodiment of the invention is as follows:
after the electric power operator arrives at the operation position, the ground wire lifter is adjusted to a proper stroke (properly larger than the distance between the hanging point and the ground wire), the hook 9 is used for hanging the ground wire, the cross arm clamp 6 and the connecting plate 7 are fastened on the cross arm of the ground wire, and the ratchet wheel rocker assembly is shaken to tighten the wire. The ground wire lifter is vertically stressed with the ground wire. The bearing capacity of the ground wire hanging point is slowly transferred to the ground wire lifter. And after the ground wire is completely transferred to the ground wire lifter, the operation is carried out. After the operation is finished, the direction of the ratchet wheel rocker assembly is adjusted, the ratchet wheel rocker assembly is shaken, and the ground wire is loosened. And withdrawing the ground wire lifter, and withdrawing the operation position to finish the operation.
When the ground wire lifter is used for a ground wire with a large load, the two ground wire lifters can be used in a matched mode, mutual safety backup is achieved, and operation safety is improved.
In the embodiment of the invention, the screw rod 2 is 550mm long, and the maximum stroke is 500 mm. And meets the requirement of common ground wire suspension.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the embodiment of the invention can effectively avoid various dangerous factors, is time-saving and labor-saving, and is safe and efficient.
According to the embodiment of the invention, the angle steel of the ground wire hanging point cross arm 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 wheel rocker is positioned above the integral structure, the requirement of actual construction operation is met, and during operation, operators sit on the ground wire cross arm to bend down, so that the operation is convenient.
The embodiment of the invention applies the retaining nut to the screw rod, thereby effectively avoiding the danger caused by the disengagement of the screw rod in the process of using a large stroke.
The embodiment of the invention uses the ratchet wheel device, and the reversing device is arranged on the ratchet wheel device, thereby greatly facilitating the operation of operators in a limited operation space.
The ratchet rocker in the embodiment of the invention 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, the stress is more uniform in the use process, and accidents caused by the fact that the stress is concentrated and exceeds the bearing range of tools and appliances are avoided.
The ratchet rocker is provided with the ratchet handle, so that the operating habit of personnel is met, and the ratchet operation is more convenient and reliable.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (10)
1. The utility model provides an utilize ground wire cross arm back-to-back angle steel operation's ground wire to carry line ware, ground wire cross arm have the angle steel and arrange the limb side by side, a serial communication port, utilize ground wire cross arm back-to-back angle steel operation's ground wire to carry the line ware and include:
the periphery of the screw rod (2) is provided with an external thread;
the ratchet wheel 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 is positioned below the ratchet wheel 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 matched and connected with the lower part of the other end of the cross arm card (6), and the yoke plate (7) and the cross arm card (6) can be fixed at the ground wire cross arm;
and the hook (9) is arranged at the lower end of the screw rod (2).
2. A ground wire lifter operating with ground wire cross-arm back-to-back angle iron as claimed in claim 1, characterized in that the cross-arm clamp (6) comprises:
one end of the connecting plate is provided with a connecting hole used for being matched with the screw rod (2);
two connecting blocks that the interval set up, two the top of connecting block all with the other end fixed connection of connecting plate, two form between the connecting block and be used for holding the angle steel is side by side the limb the draw-in groove.
3. The ground wire lifter for back-to-back angle iron working by using ground wire cross arms as claimed in claim 2, wherein the connecting block comprises a vertical part arranged in a vertical direction and a horizontal part arranged in a 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 the yoke plate (7).
4. The ground wire lifter utilizing ground wire cross arm back-to-back angle iron operation of claim 1, wherein the ratchet rocker assembly comprises:
the ratchet wheel handle (3) is sleeved outside the upper part of the screw rod (2), and internal threads matched with the external threads are arranged in the ratchet wheel handle (3);
the ratchet rocker (4) is sleeved outside the ratchet handle (3) and can drive the ratchet handle (3) to rotate.
5. The ground wire lifter operating by using the back-to-back angle iron of the ground wire cross arm as claimed in claim 4, wherein the ratchet rocker (4) is a telescopic rod.
6. A ground wire lifter operating with ground wire cross-arm back-to-back angle iron as claimed in claim 1, wherein a commutator is provided on said ratchet rocker assembly.
7. A ground wire lifter operating with ground wire cross-arm back-to-back angle iron as claimed in claim 1, characterized in that the hook (9) is connected with the lead screw (2) by a hook connector (8).
8. The ground wire lifter for back-to-back angle iron operation by using the ground wire cross arm as claimed in claim 7, wherein a circular mounting hole is opened at the upper end of the hook connector (8), the lower end of the screw rod (2) is inserted into the circular mounting hole, and the lower end of the screw rod (2) is fixedly connected with the upper end of the hook connector (8) through a bolt.
9. The ground wire lifter for back-to-back angle iron operation by using the ground wire cross arm as claimed in claim 8, wherein 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 passes through the hook clamping hole and is placed outside the hook connector (8), and the hook body is detachably arranged at the lower end of the straight rod section.
10. The ground wire lifter of claim 9, wherein the upper end of the hook engaging hole is formed in a semi-spherical shape, and an arc surface of the semi-spherical shape faces downward.
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 true CN111268581A (en) | 2020-06-12 |
| CN111268581B CN111268581B (en) | 2024-03-22 |
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| 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 |
|---|---|
| CN111268581B (en) | 2024-03-22 |
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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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