CN210957564U - Auxiliary tool for replacing linear single-rod overhead ground wire support - Google Patents
Auxiliary tool for replacing linear single-rod overhead ground wire support Download PDFInfo
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- CN210957564U CN210957564U CN201922242103.XU CN201922242103U CN210957564U CN 210957564 U CN210957564 U CN 210957564U CN 201922242103 U CN201922242103 U CN 201922242103U CN 210957564 U CN210957564 U CN 210957564U
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Abstract
The utility model relates to an auxiliary tool for replacing a linear single-rod overhead ground wire bracket, which comprises a first tightening screw component, a second tightening screw component, a cross arm horizontal clamp, an upper hoop, a lower hoop and a temporary bracket; the upper hoop is connected to the top of the linear single rod; the first tightening screw component and the second tightening screw component are the same in structure and respectively comprise a lower pull plate, a left-handed screw, a right-handed screw and a screw sleeve, one end of the lower pull plate is connected with one end of the left-handed screw, the other end of the lower pull plate is connected with the horizontal clamp of the cross arm through a bolt, and the left-handed screw is connected with the right-handed screw through the screw sleeve; the cross arm horizontal clamp comprises an upper clamp plate and two lower clamp plates with L-shaped cross sections, wherein the two lower clamp plates are arranged in a back-to-back manner and are matched with the upper clamp plate to clamp a large cross arm or a small cross arm in the middle, and the upper clamp plate is symmetrically provided with two vertical plates. The advantages are that: simple structure, it is light, can implement the application on the high-voltage line, the material resources of using manpower sparingly in the construction reduce working strength, shortened the power off time.
Description
Technical Field
The utility model belongs to high-tension transmission operation field especially relates to an appurtenance for changing straight line single pole overhead earth wire support.
Background
With the improvement of the dependence of the modern society on electric energy, areas with high power density have higher requirements on the safety and reliability of electric energy supply, and further have higher and higher requirements on the reliability of high-voltage transmission equipment. Wherein, 66kV high tension transmission line, mostly set up in the open air.
Referring to fig. 1-3, a 66kV linear single-pole power transmission structure is in an upper-character-shaped triangular arrangement mode, and a large cross arm and a small cross arm are both made of angle steel, wherein the large cross arm is provided with two inclined pull plates, and the small cross arm is provided with one inclined pull plate. The small cross arm inclined pulling plate, the large cross arm long inclined pulling plate and the overhead ground wire support on the rod top are fixed together on one of the through bolts on the top, and the other through bolt is used for fixing the overhead ground wire support independently, so that the overhead ground wire support is fixed by the two bolts, and the overhead wire can be stably supported.
In the running process of the line, due to rain and snow erosion, or inclination of a cement rod, falling of the rod and disconnection of the overhead ground wire, the support of the overhead ground wire can be seriously inclined and bent, and hardware fittings are deformed. When the overhead ground wire support is seriously bent, the bearable force changes, the overhead wire is possibly broken, the upper wire discharges to the overhead wire, and even the rod body inclines and the like. It must be replaced when there is a problem with the overhead earth wire support. When in the replacement process, if the measures of preventing the falling of the cable or preventing the deflection of the inclined pulling plate are not taken, the penetrating bolt is directly opened, and the upper cross arm and the large cross arm of the large cross arm long inclined pulling plate incline. The situation can not be compensated, and the operation difficulty is greatly increased; if the conducting wire is firstly dropped to the auxiliary cross arm before operation, the cross arm inclined pulling plate is not stressed. Therefore, the upper cross arm can be supported by external force during replacement, the cross arm does not incline left and right, and then the bracket can be smoothly replaced, but the operation time can be prolonged, and special conditions even the power transmission time can be influenced, so that a set of maintenance device and operation method need to be designed to reduce various losses, increase social benefits and facilitate the maintenance of the high-voltage transmission line.
Disclosure of Invention
For overcoming the deficiencies of the prior art, the utility model aims at providing an appurtenance for changing straight line single pole overhead earth wire support, but safe and reliable's change straight line single pole overhead earth wire support shortens the power off time.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
an auxiliary tool for replacing a linear single-rod overhead ground wire support comprises a first tightening screw rod assembly, a second tightening screw rod assembly, a cross arm horizontal clamp, an upper hoop, a lower hoop and a temporary support; the upper hoop is connected to the top of the linear single rod;
the first tightening screw component and the second tightening screw component are the same in structure and respectively comprise a lower pull plate, a left-handed screw, a right-handed screw and a screw sleeve, one end of the lower pull plate is connected with one end of the left-handed screw, the other end of the lower pull plate is connected with the horizontal clamp of the cross arm through a bolt, the inner walls of two ends of the screw sleeve are respectively provided with the left-handed screw and the right-handed screw, and the left-handed screw is connected with the right-handed screw through the screw sleeve;
the cross arm horizontal clamp comprises an upper clamp plate and two lower clamp plates, wherein the lower clamp plates are plates with L-shaped sections, the two lower clamp plates are arranged in a back-to-back manner and are matched with the upper clamp plate to clamp the large cross arm or the small cross arm in the middle, and the upper clamp plate and the lower clamp plate as well as the two lower clamp plates are fixedly connected through fastening bolts; the upper clamping plate is symmetrically provided with two vertical plates, and adjusting bolts are connected between the vertical plates;
the upper and lower anchor ears have the same structure and respectively comprise a body, transverse plates, support columns and bent plates, the support columns are welded on the body, the transverse plates are welded at the end parts of the support columns, the transverse plates are fixedly connected with the bent plates through bolts, and the bent plates are provided with convex structures; the body consists of two arc-shaped plates, and two ends of each arc-shaped plate are fixedly connected through bolts;
the temporary support comprises a main frame, a support frame, a screw rod and a positioning bolt, wherein the main frame is L-shaped and is made of square steel pipes, the main frame is clamped and fixed in a through hole formed between the bent plate and the transverse plate, the support frame is fixedly connected with the bottom end of the screw rod, the top end of the support frame penetrates through the main frame and is in threaded connection with a nut, the bottom of the support frame is in threaded connection with the positioning bolt, and an overhead ground wire penetrates through the support frame and is supported by the positioning bolt.
The thread sleeve is fixedly connected with a handle.
And a connecting plate is connected between the lower pulling plate and the left-handed screw.
Compared with the prior art, the beneficial effects of the utility model are that:
the auxiliary tool for replacing the linear single-rod overhead ground wire support is simple and reasonable in structure, light and convenient, can be applied to a high-voltage line, saves manpower and material resources during construction, reduces working strength, greatly shortens power failure time, and increases benefits. The auxiliary tool is adopted to replace the linear single-rod overhead ground wire support, so that the safety factor is improved, and the working difficulty is reduced. If the safe distance of the operation site can be ensured, the overhead line support can be replaced without power failure, the power supply reliability is improved, the social benefit is increased, and the device has popularization and use values.
Drawings
Fig. 1 is a schematic diagram of a 66kV linear single-pole power transmission structure.
Fig. 2 is a schematic view of the connection of a large cross arm and a straight single rod.
Fig. 3 is a schematic view of the connection of a small cross arm and a straight single rod.
Fig. 4 is an operational elevation view of an auxiliary tool for replacing a linear single bar overhead earth wire carrier.
Fig. 5 is a rear view of the working state of the auxiliary tool for replacing the linear single-rod overhead earth wire carrier.
Fig. 6 is a schematic structural view of the cross arm horizontal jig.
Fig. 7 is a schematic structural diagram of the lower hoop.
FIG. 8 is a schematic structural diagram of a first tightening screw assembly.
Fig. 9 is a schematic structural view of a temporary stent.
In the figure: 1-linear single rod 2-large cross arm 3-large cross arm long inclined pull plate 4-cross arm horizontal clamp I5-A phase lead wire 6-lower pull plate 7-connecting plate 8-overhead earth wire support 9-thread bushing 10-upper hoop 11-overhead earth wire 12-tightening screw rod component II 13-small cross arm inclined pull plate 14-small cross arm 15-cross arm horizontal clamp II 16-B phase lead wire 17-lower hoop 18-small inclined pull plate bolt 19-large cross arm small inclined pull plate 20-cross arm horizontal clamp III 21-C phase lead wire 22-right screw rod 23-left screw rod 24-handle 25-temporary support
41-an upper clamping plate 42-a lower clamping plate 43-an adjusting bolt 44-a vertical plate 111-a body 112-a support column 113-a transverse plate 114-a bent plate 251-a main frame 252-a support frame 253-a screw 254-a positioning bolt.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 4-9, the auxiliary tool for replacing the linear single-rod overhead ground wire bracket comprises a first tightening screw rod assembly, a second tightening screw rod assembly 12, a cross arm horizontal clamp, an upper hoop 10, a lower hoop 17 and a temporary bracket 25; the first tightening screw component and the second tightening screw component 12 are identical in structure and respectively comprise a lower pull plate 6, a left-handed screw 23, a right-handed screw 22 and a screw sleeve 9, one end of the lower pull plate 6 is connected with one end of the left-handed screw 23, the other end of the lower pull plate 6 is connected with a horizontal cross arm clamp through a bolt, the inner walls of two ends of the screw sleeve 9 are respectively provided with a left-handed thread and a right-handed thread, and the left-handed screw 23 is connected with the right-handed screw 22 through the screw sleeve 9; referring to fig. 6, the horizontal clamp for the cross arm comprises an upper clamp plate 41 and two lower clamp plates 42, wherein the lower clamp plate 42 is a plate with an L-shaped cross section, the two lower clamp plates 42 are arranged opposite to each other and are matched with the upper clamp plate 41 to clamp the large cross arm 2 or the small cross arm 14 in the middle, and the upper clamp plate 41 and the lower clamp plate 42 and the two lower clamp plates 42 are fixedly connected through fastening bolts; the upper clamping plate 41 is symmetrically provided with two vertical plates 44, and adjusting bolts 43 are connected between the vertical plates 44; go up staple bolt 10 and connect at sharp single pole 1 top, see fig. 7, go up staple bolt 10 and hold 17 the structure the same down, all include body 111, diaphragm 113, support column 112, bent plate 114, the welding has support column 112 on the body 111, the welding has diaphragm 113 at the support column 112 tip, diaphragm 113 passes through bolt fixed connection with bent plate 114, has protruding structure on the bent plate 114, forms square through-hole with diaphragm 113 cooperation, can fix interim support 25 in it. The body 111 is composed of two arc plates, and two ends of the arc plates are fixedly connected through bolts.
The temporary support 25 comprises a main frame 251, a support frame 252, a screw 253 and a positioning bolt 254, wherein the main frame 251 is L-shaped and is made of square steel pipes, the main frame 251 is clamped and fixed in a through hole formed between the bent plate 114 and the transverse plate 113, the support frame 252 is welded with the bottom end of the screw 253, the top end of the support frame passes through the main frame 251 and is in threaded connection with a nut, the bottom of the support frame 252 is in threaded connection with the positioning bolt 254, and the overhead ground wire 11 penetrates through the support frame 25 and is supported by the positioning bolt 254.
Wherein, fixedly connected with handle 24 on the silk cover 9, the length of conveniently adjusting the tight lead screw subassembly. A connecting plate 7 is connected between the lower pulling plate 6 and the left-handed screw 23 for lengthening the tightening screw assembly, see fig. 8.
Referring to fig. 4-9, a method of using an auxiliary tool for replacing a linear single bar overhead earth wire carrier comprises the steps of:
1) installing a first cross arm horizontal clamp 4 on the large cross arm 2 and fixing the first cross arm horizontal clamp outside the long diagonal draw plate 3 of the large cross arm; the upper clamping plate 41 is attached to the large cross arm 2, the two lower clamping plates 42 are respectively attached to two sides of the lower part of the large cross arm 2 and fixedly connected through fastening bolts, and two ends of the upper clamping plate 41 are fixedly connected with the lower clamping plates 42 through the fastening bolts; mounting a second cross arm horizontal clamp 15 on the small cross arm 14 in the same way, and arranging the second cross arm horizontal clamp outside the small cross arm inclined pull plate 13;
2) assembling a first tightening screw rod assembly, in order to prolong the length of the first tightening screw rod assembly, connecting plates 7 are connected between a lower pull plate 6 and a left-handed screw rod 23, then the bottom end of the lower pull plate 6 is connected to an upper clamping plate 41 of a first cross arm horizontal clamp 4 through an adjusting bolt 43, the right-handed screw rod 22 at the top end of the first tightening screw rod assembly is connected with an upper hoop 10 at the top of a linear single rod 1 through a bolt, and then the screw sleeve 9 is used for adjusting, so that the first tightening screw rod assembly can support a large cross arm 2 and the linear single rod 1; assembling a second tightening screw rod assembly 12 in the same way, wherein the second tightening screw rod assembly 12 is directly connected with an upper hoop 10 and a second cross arm horizontal clamp 15 and is adjusted through a screw sleeve 9 without installing a connecting plate 7 on the second tightening screw rod assembly 12 due to the fact that the small cross arm inclined pull plate 13 is short in length;
3) installing a lower anchor ear 17, fixing a body 111 on the linear single rod 1 below the small cross arm 14 through bolts, enabling a transverse plate 113 of the upper anchor ear 10 and a transverse plate 113 of the lower anchor ear 17 to be positioned on the same vertical line, vertically attaching the temporary support 25 to the transverse plates 113 of the upper anchor ear 10 and the lower anchor ear 17, buckling the temporary support 25 on the transverse plate 113 through a bent plate 114 and fixing through bolts, enabling the temporary support 25 to be fixed on the upper anchor ear 10 and the lower anchor ear 17, and enabling the temporary support 25 and an overhead ground wire support 8 to be replaced to be symmetrically arranged at the top of the linear single rod 1; the overhead ground wire 11 is detached from the overhead ground wire support 8, placed in the support frame 252 of the temporary support 25, and the positioning bolt 254 is installed, so that the overhead ground wire 11 is stably and reliably placed in the support frame 252;
4) detaching the two cross-core bolts, detaching the old overhead ground wire bracket 8, replacing the new overhead ground wire bracket 8, fixing the new overhead ground wire bracket 8, the large cross-arm long diagonal tension plate 3 and the small cross-arm diagonal tension plate 13 by using the cross-core bolts, then installing another cross-core bolt, completing the installation of the overhead ground wire bracket 8, and finally detaching the overhead ground wire 11 from the temporary bracket 25 and installing the overhead ground wire on the overhead ground wire bracket 8;
5) and (3) removing the temporary support 25, the upper hoop 10, the lower hoop 17, the first tightening screw rod assembly and the second tightening screw rod assembly 12 to finish the operation of replacing the linear single-rod overhead ground wire support.
In addition, if the large cross arm and small diagonal draw plate is to be replaced, the same method can be adopted, a third cross arm horizontal clamp 20 is installed at the other end of the large cross arm 2 and on the outer side of the large cross arm and small diagonal draw plate, then a first tightening screw component is installed on the upper hoop 10 and the third cross arm horizontal clamp 20, the bolts 18 of the small diagonal draw plates are removed, the large cross arm and small diagonal draw plate is detached, a new large cross arm and small diagonal draw plate is installed, the first tightening screw component and the third cross arm horizontal clamp 20 are removed, and the operation of replacing the large cross arm and small diagonal draw plate is completed.
Claims (3)
1. An auxiliary tool for replacing a linear single-rod overhead ground wire support is characterized by comprising a first tightening screw rod assembly, a second tightening screw rod assembly, a cross arm horizontal clamp, an upper hoop, a lower hoop and a temporary support; the upper hoop is connected to the top of the linear single rod;
the first tightening screw component and the second tightening screw component are the same in structure and respectively comprise a lower pull plate, a left-handed screw, a right-handed screw and a screw sleeve, one end of the lower pull plate is connected with one end of the left-handed screw, the other end of the lower pull plate is connected with the horizontal clamp of the cross arm through a bolt, the inner walls of two ends of the screw sleeve are respectively provided with the left-handed screw and the right-handed screw, and the left-handed screw is connected with the right-handed screw through the screw sleeve;
the cross arm horizontal clamp comprises an upper clamp plate and two lower clamp plates, wherein the lower clamp plates are plates with L-shaped sections, the two lower clamp plates are arranged in a back-to-back manner and are matched with the upper clamp plate to clamp the large cross arm or the small cross arm in the middle, and the upper clamp plate and the lower clamp plate as well as the two lower clamp plates are fixedly connected through fastening bolts; the upper clamping plate is symmetrically provided with two vertical plates, and adjusting bolts are connected between the vertical plates;
the upper and lower anchor ears have the same structure and respectively comprise a body, transverse plates, support columns and bent plates, the support columns are welded on the body, the transverse plates are welded at the end parts of the support columns, the transverse plates are fixedly connected with the bent plates through bolts, and the bent plates are provided with convex structures; the body consists of two arc-shaped plates, and two ends of each arc-shaped plate are fixedly connected through bolts;
the temporary support comprises a main frame, a support frame, a screw rod and a positioning bolt, wherein the main frame is L-shaped and is made of square steel pipes, the main frame is clamped and fixed in a through hole formed between the bent plate and the transverse plate, the support frame is fixedly connected with the bottom end of the screw rod, the top end of the support frame penetrates through the main frame and is in threaded connection with a nut, the bottom of the support frame is in threaded connection with the positioning bolt, and an overhead ground wire penetrates through the support frame and is supported by the positioning bolt.
2. An auxiliary tool for replacing a linear single-rod overhead earth wire bracket according to claim 1, wherein a handle is fixedly connected to the thread bushing.
3. The auxiliary tool for replacing a linear single-rod overhead ground wire bracket according to claim 1, wherein a connecting plate is connected between the pull-down plate and the left-handed lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242103.XU CN210957564U (en) | 2019-12-13 | 2019-12-13 | Auxiliary tool for replacing linear single-rod overhead ground wire support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242103.XU CN210957564U (en) | 2019-12-13 | 2019-12-13 | Auxiliary tool for replacing linear single-rod overhead ground wire support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210957564U true CN210957564U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922242103.XU Active CN210957564U (en) | 2019-12-13 | 2019-12-13 | Auxiliary tool for replacing linear single-rod overhead ground wire support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210957564U (en) |
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2019
- 2019-12-13 CN CN201922242103.XU patent/CN210957564U/en active Active
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