CN113555700B - Deep vertical fast-assembled graphite grounding electrode and processing technology thereof - Google Patents
Deep vertical fast-assembled graphite grounding electrode and processing technology thereof Download PDFInfo
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- CN113555700B CN113555700B CN202110853723.6A CN202110853723A CN113555700B CN 113555700 B CN113555700 B CN 113555700B CN 202110853723 A CN202110853723 A CN 202110853723A CN 113555700 B CN113555700 B CN 113555700B
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- grounding electrode
- red copper
- cutting
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 105
- 239000010439 graphite Substances 0.000 title claims abstract description 105
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000002788 crimping Methods 0.000 claims abstract description 74
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052802 copper Inorganic materials 0.000 claims abstract description 60
- 239000010949 copper Substances 0.000 claims abstract description 60
- 238000005520 cutting process Methods 0.000 claims abstract description 51
- 239000010935 stainless steel Substances 0.000 claims abstract description 39
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 39
- 238000009954 braiding Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000003825 pressing Methods 0.000 claims description 12
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 238000011900 installation process Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005097 cold rolling Methods 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 239000002689 soil Substances 0.000 abstract description 7
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000007770 graphite material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000009941 weaving Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
Abstract
The invention discloses a deep vertical fast-assembled graphite grounding electrode and a processing technology thereof, and relates to the technical field of fast-assembled grounding electrodes, wherein the graphite grounding electrode comprises a plurality of sections of red copper rods and a graphite braiding layer tightly covered outside the red copper rods, the peripheries of the red copper rods and the graphite braiding layer are fastened through a plurality of stainless steel sleeves, both ends of the red copper rods are respectively provided with external threads, the external threads at one end of each red copper rod are connected with a conical head, and the external threads at the other end of each red copper rod are connected with a tail end sealing bolt through a connector; the graphite grounding electrode has good conductivity, improves the through-flow performance of the grounding electrode, and slows down electrochemical corrosion; the high specific surface area and flexibility of the graphite woven layer can be better attached to soil, and the contact resistance between the grounding electrode and the soil is reduced; the integrated conveying, cutting and crimping device is adopted in the processing technology process to automatically finish the conveying, cutting and crimping procedures, so that the processing and mounting efficiency of the graphite grounding electrode is greatly improved.
Description
Technical Field
The invention relates to the technical field of fast-assembled grounding electrodes, in particular to a deep vertical fast-assembled graphite grounding electrode and a processing technology thereof.
Background
The grounding device in the power system is crucial, the grounding device is made of metal or nonmetal grounding materials at present, grounding bodies are laid in a mode of adding extension wires to the foundation frame of a pole tower, the grounding device is large in use quantity and occupied area, construction difficulty is high, the grounding body is generally found to be severely corroded after the grounding device is operated for 3-7 years, the grounding resistance is rapidly increased, and the probability of lightning trip is greatly increased;
although the graphite-based flexible nonmetallic grounding material has good corrosion resistance and excellent resistance reduction, the graphite-based flexible nonmetallic grounding material has larger resistance and low strength, so that the through-flow capacity of the graphite-based flexible nonmetallic grounding material is poorer than that of a metallic material, and the graphite grounding body cannot be independently used as a vertical grounding body to solve the problem of limited excavation of a tower foundation; because the electrode potential of the graphite grounding material is different from that of metal materials such as galvanized steel, galvanic corrosion is easy to occur in a wet soil environment, so that the metal materials are corroded in a large area, the grounding resistance value of the tower grounding device is continuously increased, and potential damage is caused to a circuit;
therefore, the invention provides a deep vertical fast-assembled graphite grounding electrode, which aims to solve the technical problems of limited excavation of hard objects, small through-flow capacity of graphite materials, easy corrosion, resistance reduction and difficult construction of the grounding electrode in the prior art.
Disclosure of Invention
The invention aims to provide a deep vertical fast-assembled graphite grounding electrode and a processing technology thereof, which are used for solving the problems of limited excavation of hard objects, small through-flow capacity of graphite materials, easy corrosion, resistance reduction and difficult construction in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a deep vertical fast-assembled graphite grounding electrode, which comprises a plurality of sections of copper bars and a graphite weaving layer tightly covered outside the copper bars, wherein the peripheries of the copper bars and the graphite weaving layer are fastened through a plurality of stainless steel sleeves, both ends of the copper bars are provided with external threads, the external threads at one end of each copper bar are connected with conical heads in a threaded manner, and the external threads at the other end of each copper bar are connected with tail end sealing bolts in a threaded manner through connectors.
As a preferred embodiment of the invention, the red copper rod is obtained by electroplating or cold-rolling a layer of red copper on the outer layer of a high-strength carbon steel matrix.
As a preferred embodiment of the invention, the inner cavity of the conical head is provided with an inner thread which is matched with the outer thread; the connector is of a hollow inner cavity structure with internal threads, and the tail end sealing bolt is provided with external threads matched with the internal threads of the connector.
In a preferred embodiment of the present invention, the graphite braid is woven from 14 to 18 graphite wires of 6 g.
The invention also provides a processing technology of the deep vertical fast-assembled graphite grounding electrode, which comprises the following steps:
a. the method comprises the steps that a graphite grounding electrode consisting of a plurality of sections of copper bars and a graphite braiding layer is connected with a conical head through external threads at one end, the periphery of the graphite grounding electrode is fastened through crimping of a plurality of stainless steel sleeves, and the external threads at the other end are connected with a tail end sealing bolt through a connector in a threaded manner;
b. when the graphite grounding electrode encounters a hard object in the installation process and cannot be continuously and vertically installed, cutting the graphite grounding electrode from a position 200mm higher than the ground, crimping a 50mm long copper bar and a graphite weaving layer by adopting a stainless steel sleeve with the length of 100-120 mm, and crimping the rest 50-60 mm stainless steel sleeve, wherein the non-crimped stainless steel sleeve is partially crimped with the cut copper bar and the graphite weaving layer, so that the graphite grounding electrode is deeply and vertically fast-assembled; the cutting and crimping operation adopts an integrated conveying cutting and crimping device.
In a preferred embodiment of the present invention, the integrated conveyance cut-off crimping device includes: the conveying mechanism is arranged on the cutting mechanism and the crimping mechanism on two sides of the conveying mechanism and comprises a frame, the two sides above the frame are provided with conveying belts through belt mounting frames, a plurality of roll shafts are arranged in parallel in a surrounding path area of the conveying belts, and the axis of one roll shaft is connected with the motor shaft of the gear motor.
As a preferred implementation mode of the invention, the cutting mechanism comprises a first mounting table positioned at one side of the frame, a plurality of cutting machine tables are arranged on the first mounting table, two groups of first mounting frames are symmetrically arranged at the bottom of each cutting machine table, each group of first mounting frames comprises two first mounting plates which are oppositely arranged and have a gap between each other, a first fixed shaft is penetrated between the two first mounting plates, two ends of the first fixed shaft are positioned on the outer surface of the first mounting plates and fixed through first nuts, and a movable pulley is movably connected with the outer turnover of the first fixed shaft; the center of the top of the cutting machine table is provided with a first cylinder, the bottom of the first cylinder is connected with a first piston shaft extending downwards, two sides of the bottom of the first piston shaft are provided with side fixing plates, a second fixing shaft is arranged between the two side fixing plates in a penetrating manner, two ends of the second fixing shaft are fixed through a second nut, and a cutting knife is fixed on the periphery of the middle of the second fixing shaft; the cutting knife is positioned above the two opposite movable pulleys.
In a preferred embodiment of the present invention, the cross section of the cutter is circular, and the cross section of the movable pulley is tapered with a diameter decreasing from the center to both sides.
As a preferred implementation mode of the invention, the crimping mechanism comprises a second mounting table positioned at the other side of the frame, a plurality of crimping machine tables are arranged on the second mounting table, two groups of second mounting frames are arranged at the bottom of each crimping machine table, each group of second mounting frames comprises two second mounting plates which are oppositely arranged and have a gap between each other, a third fixed shaft is penetrated between the two second mounting plates, two ends of the third fixed shaft are positioned on the outer surface of the second mounting plate and are fixed through third nuts, and a lower crimping plate is movably fixed outside the third fixed shaft; the center of the top of the press-fit machine table is provided with a second cylinder, the bottom of the second cylinder is connected with a second piston shaft extending downwards, and two sides of the bottom of the second piston shaft are provided with upper press-fit plates corresponding to the lower press-fit plates; when the second cylinder drives the second piston shaft and the upper pressure welding plate to move downwards, the area formed after the upper pressure welding plate and the lower pressure welding plate are close to each other is a pressure welding area.
As a preferred embodiment of the present invention, the bottom of the upper pressing plate is provided with a semicircular lower groove, the outer surface of the lower groove is provided with a plurality of lower ribs, and the inner surface of the inner cavity of the upper pressing plate, which is positioned in the lower groove, is abutted with a plurality of first torsion springs; the top of the lower pressing plate is provided with a semicircular upper groove, a plurality of upper convex ribs are arranged on the outer surface of the upper groove, and a plurality of second torsion springs are propped against the inner surface of the upper groove in the inner cavity of the lower pressing plate.
The invention has the following beneficial effects:
1. according to the deep vertical fast-assembled graphite grounding electrode, the potential difference between the electrode of the red copper and the electrode of the graphite material is not large, so that the electrochemical corrosion of the red copper is slowed down; the high-strength carbon steel matrix material is 304 stainless steel, so that the conductivity of the grounding electrode is improved, and the through-flow performance of the grounding electrode is improved; the high specific surface area and flexibility of the graphite woven layer can be better attached to soil, and the contact resistance between the grounding electrode and the soil is reduced; the graphite braiding layer is added on the outer layer of the red copper rod, so that the outer diameter of the red copper rod is enlarged, the diffusion of the grounding electrode is facilitated, and the deep vertical fast-assembled graphite grounding electrode is simple in construction process and convenient to install;
2. according to the processing technology of the deep vertical fast-assembled graphite grounding electrode, when the graphite grounding electrode encounters a hard object in the installation process and cannot be continuously and vertically installed, an integrated conveying, cutting and crimping device is adopted, firstly, the graphite grounding electrode is cut off, a red copper rod and a graphite braid are crimped by a stainless steel sleeve, the non-crimped stainless steel sleeve is partially crimped with the cut red copper rod and the graphite braid, so that the graphite grounding electrode is deeply and vertically fast-assembled, and the integrated conveying, cutting and crimping device automatically completes conveying, cutting and crimping procedures, so that the processing and installation efficiency of the graphite grounding electrode is greatly improved;
3. the arrangement of a plurality of cutting machine tables facilitates the transportation to different movable pulleys when the cutting deep vertical fast-assembled graphite grounding electrode is required to be cut at different sections, and the cutting is performed by the cutting knife corresponding to the movable pulley at the other position; the arrangement of the plurality of press mounting tables facilitates the press mounting of different parts of the stainless steel sleeve by different upper press mounting plates and lower press mounting plates, and the compactness and the continuity of the press mounting are maintained.
Drawings
FIG. 1 is a cross-sectional view of an exploded structure of a deep vertical fast-assembled graphite grounding electrode in accordance with an embodiment of the present invention;
FIG. 2 is a front view of a stainless steel bushing according to an embodiment of the present invention before crimping;
fig. 3 is a front view of a connector according to an embodiment of the present invention;
FIG. 4 is a front view of a tail end seal bolt according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an integrated conveying, cutting and crimping device according to an embodiment of the present invention;
FIG. 6 is a front view of a cutoff mechanism according to an embodiment of the present invention, the first mounting station not being shown;
FIG. 7 is a side view of a cutoff mechanism according to an embodiment of the present invention, the first mounting station not being shown;
FIG. 8 is a front view of a press-fit mechanism according to an embodiment of the present invention, wherein the second mounting table is not shown;
FIG. 9 is a side view of a crimping mechanism according to an embodiment of the present invention, with a second mounting stage not shown;
FIG. 10 is a cross-sectional view of an upper and lower crimping plate in accordance with an embodiment of the present invention;
reference numerals: 1. a copper bar; 2. a graphite braid; 3. stainless steel sleeve; 4. a conical head; 5. a connector; 6. a tail end sealing bolt; 11. an external thread; 100. a conveying mechanism; 110. a frame; 120. a belt mounting rack; 130. a conveyor belt; 140. a roll shaft; 150. a speed reducing motor; 200. a cutting mechanism; 210. a first mounting table; 220. a cutting machine; 230. a first mounting frame; 231. a first mounting plate; 232. a first fixed shaft; 233. a first nut; 234. a movable pulley; 235. a first extension plate; 236. a first reinforcing plate; 237. a first bolt; 240. a first cylinder; 241. a first piston shaft; 242. a side fixing plate; 243. a second fixed shaft; 244. a second nut; 250. a cutting knife; 300. a crimping mechanism; 310. a second mounting table; 320. a press mounting table; 330. a second mounting frame; 331. a second mounting plate; 332. a third fixed shaft; 333. a third nut; 334. pressing down the connecting plate; 340. a second cylinder; 341. a second piston shaft; 342. an upper press plate; 343. a crimping zone; 3421. a lower groove; 3422. a lower rib; 3423. a first torsion spring; 3341. an upper groove; 3342. an upper rib; 3343. and a second torsion spring.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in fig. 1-4, the embodiment provides a deep vertical fast-assembled graphite grounding electrode, which comprises a plurality of sections of copper bars 1 and a graphite braiding layer 2 tightly covered outside the copper bars 1, wherein the copper bars 1 are fastened with the periphery of the graphite braiding layer 2 through a plurality of stainless steel sleeves 3, external threads 11 are arranged at two ends of the copper bars 1, the external threads 11 at one end of each copper bar 1 are in threaded connection with a conical head 4, and the external threads 11 at the other end are in threaded connection with tail end sealing bolts 6 through connectors 5;
wherein, the copper bar 1 is obtained by electroplating or cold-rolling a layer of red copper on the outer layer of the high-strength carbon steel matrix, thereby improving the corrosion resistance of the high-strength carbon steel matrix; the length of each section of graphite braid 2 is 500mm, and the length of the external thread 11 is 32mm; the inner cavity of the conical head 4 is provided with an inner thread which is matched with the outer thread 11; the connector 5 is of a hollow inner cavity structure with an inner thread, the tail end sealing bolt 6 is provided with an outer thread matched with the inner thread of the connector 5, and the connector 5 is made of brass; the length of the stainless steel sleeve 3 is preferably 100-120 mm, the outer diameter is preferably 22mm, and the wall thickness is preferably 1.2mm; the cross-sectional diameter of the copper bar 1 is preferably 14.6mm; the graphite braid 2 is woven by 14-18 graphite wires of 6g, and has good flexibility.
The deep vertical fast-assembled graphite grounding electrode has small electrode potential difference between red copper and graphite material, and slows down electrochemical corrosion of the red copper; the high-strength carbon steel matrix material is 304 stainless steel, so that the conductivity of the grounding electrode is improved, and the through-flow performance of the grounding electrode is improved; the graphite braid layer 2 has high specific surface area and flexibility, can be better attached to soil, and reduces the contact resistance between a grounding electrode and the soil; the graphite braid 2 is added to the outer layer of the red copper rod 1, so that the outer diameter of the red copper rod 1 is enlarged, the diffusion of the grounding electrode is facilitated, the construction process of the deep vertical fast-assembled graphite grounding electrode is simple, the installation is convenient, the used materials are common, and the production cost is low.
The processing technology of the deep vertical fast-assembled graphite grounding electrode comprises the following steps:
a. the method comprises the steps that a graphite grounding electrode consisting of a plurality of sections of copper bars 1 and a graphite braiding layer 2 is connected with a conical head 4 through external threads 11 at one end, the periphery of the graphite grounding electrode is fastened through crimping of a plurality of stainless steel sleeves 3, and the external threads 11 at the other end are connected with a tail end sealing bolt 6 through a connector 5 in a threaded manner;
b. when the graphite grounding electrode encounters a hard object in the installation process and cannot be continuously and vertically installed, cutting the graphite grounding electrode from a position 200mm higher than the ground, crimping a 50mm long copper bar 1 and a graphite braiding layer 2 by adopting a stainless steel sleeve 3 with the length of 100-120 mm, and crimping the rest 50-60 mm stainless steel sleeve 3, wherein the non-crimped stainless steel sleeve 3 is partially crimped with the cut copper bar 1 and the graphite braiding layer 2, so that the graphite grounding electrode is deeply and vertically and quickly installed; the cutting and crimping operation adopts an integrated conveying cutting and crimping device.
According to the processing technology of the deep vertical fast-assembling graphite grounding electrode, when the graphite grounding electrode encounters a hard object in the installation process and cannot be continuously and vertically installed, an integrated conveying cutting-off crimping device is adopted, the graphite grounding electrode is firstly cut off from a position 200mm long above the ground, a stainless steel sleeve 3 with the length of 100-120 mm is adopted to crimp a copper rod 1 and a graphite braid 2 with the length of 50mm, the non-crimped stainless steel sleeve 3 is partially crimped with the cut-off copper rod 1 and the graphite braid 2, the graphite grounding electrode is subjected to deep vertical fast-assembling, the integrated conveying cutting-off crimping device is subjected to automatic conveying, cutting-off and crimping procedures, and the processing and installation efficiency of the graphite grounding electrode are greatly improved.
Example 2
As shown in fig. 1 and 5, the embodiment provides an integrated conveying, cutting and crimping device, which is used for conveying, cutting and crimping procedures of a deep vertical fast-assembled graphite grounding electrode, and particularly when the deep vertical fast-assembled graphite grounding electrode encounters hard objects such as rocks and large stones in the underground in the installation process and cannot be continuously and vertically installed, the deep vertical fast-assembled graphite grounding electrode is cut off from a position 200mm higher than the ground, a stainless steel sleeve 3 with the length of 100-120 mm is adopted to crimp a copper bar 1 with the length of 50mm and a graphite braid 2, the rest stainless steel sleeve 3 with the length of 50-60 mm is not crimped, and the non-crimped stainless steel sleeve 3 is partially crimped with the cut copper bar 1 and the graphite braid 2, so that the deep vertical fast-assembled graphite grounding electrode is completed, and the integral processing and installation efficiency is improved.
Specifically, the integrated conveying, cutting and crimping device comprises: the conveying mechanism 100 is arranged on the cutting mechanism 200 and the crimping mechanism 300 on two sides of the conveying mechanism 100, the conveying mechanism 100 comprises a frame 110, conveying belts 130 are arranged on two sides above the frame 110 through belt mounting frames 120, a plurality of roll shafts 140 are arranged in parallel in a surrounding path area of the conveying belts 130, and the axle center of one roll shaft 140 is connected with the motor shaft of a speed reduction motor 150; when the gear motor 150 is started, the roller shafts 140 connected with the motor shafts rotate along with the gear motor 150, and the roller shafts 140 and the inner surface of the conveying belt 130 generate friction force to drive the conveying belt 130 to move, so that each roller shaft 140 rotates along with the friction force, and the moving direction and the moving speed of the conveying belt 130 can be adjusted by adjusting the forward and reverse rotation and the rotating speed of the gear motor 150;
as shown in fig. 5 to 7, the cutting mechanism 200 includes a first mounting table 210 located at one side of the frame 110, a plurality of cutting machine tables 220 are provided on the first mounting table 210, two sets of first mounting frames 230 are symmetrically provided at the bottom of each cutting machine table 220, each set of first mounting frames 230 includes two first mounting plates 231 which are oppositely arranged and have a gap therebetween, a first fixing shaft 232 is penetrated between the two first mounting plates 231, two ends of the first fixing shaft 232 are located on the outer surface of the first mounting plate 231 and fixed by a first nut 233, and a movable pulley 234 is connected to the outer circumference of the first fixing shaft 232; the center of the top of the cutting machine 220 is provided with a first air cylinder 240, the bottom of the first air cylinder 240 is connected with a first piston shaft 241 extending downwards, two sides of the bottom of the first piston shaft 241 are provided with side fixing plates 242, a second fixing shaft 243 is arranged between the two side fixing plates 242 in a penetrating way, two ends of the second fixing shaft 243 are fixed through a second nut 244, and a cutting knife 250 is fixed on the periphery of the middle part of the second fixing shaft 243; the cutoff knife 250 is located in an upper position between the opposing two movable pulleys 234.
After the cut-off position of the deep vertical fast-assembled graphite grounding electrode to be cut-off is transported between the two movable pulleys 234 through the conveying belt 130, the gear motor 150 is turned off, the first cylinder 240 drives the first piston shaft 241 to move downwards, the cut-off knife 250 descends between the two movable pulleys 234 along with the first piston shaft 241 to be in contact with the deep vertical fast-assembled graphite grounding electrode, and the sharp outer surface of the cut-off knife 250 cuts off the deep vertical fast-assembled graphite grounding electrode along the section. The arrangement of the plurality of cutting machine tables 220 facilitates the transportation to different movable pulleys 234 for cutting by the cutting knife 250 corresponding to the movable pulleys 234 when the cutting of the deep vertical fast-assembled graphite grounding electrode is required at different sections.
The cross section of the cutoff knife 250 is circular, and the cross section of the movable pulley 234 is tapered with the diameter decreasing from the center to the two sides; the first mounting plate 231 is provided with a first extension plate 235 at the outer side far away from the movable pulley 234, a first reinforcing plate 236 is arranged above the first extension plate 235, and a first bolt 237 penetrating through the first extension plate 235 and the first reinforcing plate 236 is arranged at the top of the first reinforcing plate 236; the first extension plate 235 outside the first mounting plate 231 is reinforced by the first bolts 237 and the first reinforcement plate 236, so that the stability of the first mounting plate 231 is improved, and when the cutoff knife 250 moves downwards to cut off, the movable pulley 234 is extruded to rotate around the first fixed shaft 232 without shaking greatly.
As shown in fig. 5 and 8-10, the press-connection mechanism 300 includes a second mounting table 310 located at the other side of the frame 110, a plurality of press-connection tables 320 are provided on the second mounting table 310, two sets of second mounting frames 330 are provided at the bottom of each press-connection table 320, each set of second mounting frames 330 includes two second mounting plates 331 disposed opposite to each other and having a gap therebetween, a third fixing shaft 332 is disposed between the two second mounting plates 331 in a penetrating manner, two ends of the third fixing shaft 332 are located on the outer surface of the second mounting plate 331 and fixed by a third nut 333, and a lower press-connection plate 334 is fixed on the outer circumference of the third fixing shaft 332; the top center of the press-fit machine table 320 is provided with a second cylinder 340, the bottom of the second cylinder 340 is connected with a second piston shaft 341 extending downwards, and two sides of the bottom of the second piston shaft 341 are provided with an upper press-fit plate 342 corresponding to the lower press-fit plate 334; when the second cylinder 340 drives the second piston shaft 341 and the upper crimping plate 342 to move downward, a region formed by the upper crimping plate 342 and the lower crimping plate 334 being close to each other is a crimping region 343.
After the uncrushed stainless steel sleeve 3 is preliminarily sleeved with the truncated red copper rod 1 and the graphite braid 2, the uncrushed stainless steel sleeve 3 is transported to the upper part of the lower crimping plate 334 through the conveying belt 130, the second cylinder 340 drives the second piston shaft 341 and the upper crimping plate 342 to move downwards, so that the sectional area of the crimping area 343 is continuously reduced, the stainless steel sleeve 3 is crimped with the truncated red copper rod 1 and the graphite braid 2, and the plurality of crimping plates 320 are arranged, so that the crimping is performed on different parts of the stainless steel sleeve 3 by the different upper crimping plates 342 and the lower crimping plates 334, and the crimping compactness and continuity are maintained.
The bottom of the upper crimping plate 342 is provided with a semicircular lower groove 3421, the outer surface of the lower groove 3421 is provided with a plurality of lower convex ribs 3422, and a plurality of first torsion springs 3423 are abutted against the inner surface of the lower groove 3421 in the inner cavity of the upper crimping plate 342; the top of the lower pressing plate 334 is provided with a semicircular upper groove 3341, the outer surface of the upper groove 3341 is provided with a plurality of upper convex ribs 3342, and a plurality of second torsion springs 3343 are abutted against the inner surface of the upper groove 3341 of the inner cavity of the lower pressing plate 334. The lower groove 3421 and the upper groove 3341 cooperate to crimp the stainless steel sleeve 3 into a round shape, and the lower convex rib 3422 and the upper convex rib 3342 cooperate to crimp the stainless steel sleeve 3 into a plurality of convex ribs; the first torsion spring 3423 and the second torsion spring 3343 are matched, so that vibration generated by the lower groove 3421 and the upper groove 3341 on the stainless steel sleeve 3 is relieved, and the stainless steel sleeve is convenient to reset under elasticity;
the outside of keeping away from down the crimping board 334 on the second mounting panel 331 is equipped with the second extension board 335, and the top of second extension board 335 is equipped with second gusset plate 336, and the top of second gusset plate 336 is equipped with the second bolt 337 that runs through second extension board 335 and second gusset plate 336. The second extension plate 335 outside the second mounting plate 331 is reinforced by the second bolts 337 and the second reinforcing plate 336, so that the stability of the second mounting plate 331 is improved, and when the upper pressing plate 342 moves downwards to press and connect, the lower pressing plate 334 is pressed, and the lower pressing plate 334 does not shake greatly.
As shown in fig. 1 and fig. 5 to 10, the working method of the integrated conveying, cutting and crimping device of the embodiment comprises the following steps:
a. starting a speed reducing motor 250, placing a deep vertical fast-assembled graphite grounding electrode to be cut on the upper surface of a conveying belt 130, after the cut-off part is transported between two movable pulleys 234, closing the speed reducing motor 150, driving a first piston shaft 241 to move downwards by a first cylinder 240, enabling a cut-off knife 250 to descend between the two movable pulleys 234 along with the first piston shaft 241 so as to be in contact with the deep vertical fast-assembled graphite grounding electrode, and cutting off the deep vertical fast-assembled graphite grounding electrode along the section by the sharp outer surface of the cut-off knife 250;
b. after the speed reducing motor 250 is started, the stainless steel sleeve 3 is initially sleeved with the 50mm long copper bar 1 and the graphite braid 2 and then placed on the upper surface of the conveying belt 130, after the part needing to be crimped is conveyed above the lower crimping plate 334, the second cylinder 340 drives the second piston shaft 341 and the upper crimping plate 342 to move downwards, so that the sectional area of the crimping area 343 is continuously reduced, and the stainless steel sleeve 3 is crimped with the 50mm long copper bar 1 and the graphite braid 2;
c. after the gear motor 250 is started, the uncrushed stainless steel sleeve 3 is primarily sleeved with the truncated red copper rod 1 and the graphite braid 2, and then is placed on the upper surface of the conveying belt 130, after the part needing to be crimped is transported to the position above the lower crimping plate 334, the second cylinder 340 drives the second piston shaft 341 and the upper crimping plate 342 to move downwards, so that the sectional area of the crimping area 343 is continuously reduced, and the stainless steel sleeve 3 is crimped with the truncated red copper rod 1 and the graphite braid 2.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (1)
1. The processing technology of the deep vertical fast-assembled graphite grounding electrode is characterized in that the deep vertical fast-assembled graphite grounding electrode comprises a plurality of sections of red copper rods (1) and graphite braiding layers (2) tightly covered outside the red copper rods (1), the red copper rods (1) and the periphery of the graphite braiding layers (2) are fastened through a plurality of stainless steel sleeves (3), external threads (11) are arranged at two ends of the red copper rods (1), the external threads (11) at one end of the red copper rods (1) are in threaded connection with conical heads (4), and the external threads (11) at the other end of the red copper rods are in threaded connection with tail end sealing bolts (6) through connectors (5);
the red copper rod (1) is obtained by electroplating or cold-rolling a layer of red copper on the outer layer of a high-strength carbon steel matrix; the inner cavity of the conical head (4) is provided with an inner thread which is matched with the outer thread (11); the connector (5) is of a hollow inner cavity structure with internal threads, and the tail end sealing bolt (6) is provided with external threads which are matched with the internal threads of the connector (5); the graphite braiding layer (2) is formed by braiding 14-18 graphite wires with the weight of 6 g;
the processing technology of the deep vertical fast-assembled graphite grounding electrode comprises the following steps:
a. the graphite grounding electrode consisting of a plurality of sections of red copper rods (1) and a graphite braiding layer (2) is connected with a conical head (4) through external threads (11) at one end, the periphery of the graphite grounding electrode is fastened through crimping of a plurality of stainless steel sleeves (3), and the external threads (11) at the other end are connected with tail end sealing bolts (6) through connectors (5) in a threaded mode;
b. when the graphite grounding electrode encounters a hard object in the installation process and cannot be continuously and vertically installed, cutting the graphite grounding electrode from a position 200mm higher than the ground, crimping a 50mm long red copper rod (1) and a graphite braiding layer (2) by adopting a stainless steel sleeve (3) with the length of 100-120 mm, and crimping the rest of the 50-60 mm stainless steel sleeve (3) by not crimping, wherein the non-crimped stainless steel sleeve (3) is partially crimped with the cut red copper rod (1) and the graphite braiding layer (2), so that the graphite grounding electrode is deeply and vertically fast-installed; the cutting and crimping operation adopts an integrated conveying cutting and crimping device;
the integrated conveying, cutting and crimping device comprises: the conveying mechanism (100), cut-off mechanism (200) and crimping mechanism (300) set up in conveying mechanism (100) both sides, conveying mechanism (100) include frame (110), install conveyor belt (130) through belt mounting bracket (120) in the upper both sides of frame (110), a plurality of roller shafts (140) of parallel arrangement in the round route area of conveyor belt (130), the axle center of a roller shaft (140) is connected with the motor shaft of gear motor (150);
the cutting mechanism (200) comprises a first mounting table (210) positioned at one side of the frame (110), a plurality of cutting machine tables (220) are arranged on the first mounting table (210), two groups of first mounting frames (230) are symmetrically arranged at the bottom of each cutting machine table (220), each group of first mounting frames (230) comprises two first mounting plates (231) which are oppositely arranged and have a gap, a first fixed shaft (232) is arranged between the two first mounting plates (231) in a penetrating way, two ends of the first fixed shaft (232) are positioned on the outer surface of the first mounting plate (231) and fixed through first nuts (233), and movable pulleys (234) are connected to the outer turnover of the first fixed shaft (232); the center of the top of the cutting machine table (220) is provided with a first air cylinder (240), the bottom of the first air cylinder (240) is connected with a first piston shaft (241) extending downwards, two sides of the bottom of the first piston shaft (241) are provided with side fixing plates (242), a second fixing shaft (243) is arranged between the two side fixing plates (242) in a penetrating way, two ends of the second fixing shaft (243) are fixed through a second nut (244), and a cutting knife (250) is fixed on the periphery of the middle of the second fixing shaft (243); the cutoff knife (250) is positioned at an upper position between the two opposite movable pulleys (234);
the section of the cutting knife (250) is circular, and the section of the movable pulley (234) is tapered with the diameter continuously reduced from the center to the two sides;
the crimping mechanism (300) comprises a second mounting table (310) positioned at the other side of the frame (110), a plurality of crimping machine tables (320) are arranged on the second mounting table (310), two groups of second mounting frames (330) are arranged at the bottom of each crimping machine table (320), each group of second mounting frames (330) comprises two second mounting plates (331) which are oppositely arranged and have a gap, a third fixed shaft (332) is penetrated between the two second mounting plates (331), two ends of the third fixed shaft (332) are positioned on the outer surface of the second mounting plates (331) and are fixed through third nuts (333), and a lower crimping plate (334) is movably fixed outside the third fixed shaft (332); a second cylinder (340) is arranged in the center of the top of the press-mounting table (320), a second piston shaft (341) extending downwards is connected to the bottom of the second cylinder (340), and upper press-bonding plates (342) corresponding to the lower press-bonding plates (334) are arranged on two sides of the bottom of the second piston shaft (341); when the second cylinder (340) drives the second piston shaft (341) and the upper crimping plate (342) to move downwards, a region formed after the upper crimping plate (342) and the lower crimping plate (334) are close to each other is a crimping region (343);
the bottom of the upper crimping plate (342) is provided with a semicircular lower groove (3421), the outer surface of the lower groove (3421) is provided with a plurality of lower convex edges (3422), and the inner surface of the inner cavity of the upper crimping plate (342) positioned in the lower groove (3421) is abutted with a plurality of first torsion springs (3423); the top of the lower pressing plate (334) is provided with a semicircular upper groove (3341), the outer surface of the upper groove (3341) is provided with a plurality of upper ribs (3342), and the inner cavity of the lower pressing plate (334) is positioned on the inner surface of the upper groove (3341) and is abutted against a plurality of second torsion springs (3343).
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1214297A (en) * | 1967-02-02 | 1970-12-02 | British Insulated Callenders | Improvements in earth rods |
| JP2000266027A (en) * | 1999-03-18 | 2000-09-26 | Hitachi Ltd | Anchor bolt |
| RU89289U1 (en) * | 2009-05-18 | 2009-11-27 | Игорь Николаевич Урбанович | GROUNDER |
| CN105071063A (en) * | 2015-05-15 | 2015-11-18 | 国家电网公司 | Anti-corrosion connection method of flexible graphite compound earthing material |
| CN207446980U (en) * | 2017-09-30 | 2018-06-05 | 红旗集团江西铜业有限公司 | A kind of adjustable Copper wire extrusion die |
| CN109755841A (en) * | 2019-01-29 | 2019-05-14 | 中国电力科学研究院有限公司 | One kind is for splicing sleeve crimping automatic crimping machine and compression bonding method |
| CN209969386U (en) * | 2019-01-21 | 2020-01-21 | 大庆锐腾科技有限公司 | Bullet frame stamping die |
| CN111555051A (en) * | 2020-06-28 | 2020-08-18 | 河南四达电力设备股份有限公司 | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device |
| CN211638478U (en) * | 2019-12-20 | 2020-10-09 | 福建中成新材料科技有限公司 | Cutting equipment is used in processing of tungsten steel bar convenient to adjust |
| CN212011565U (en) * | 2020-05-21 | 2020-11-24 | 天津津裕电业股份有限公司 | Binding post and crimping device who connects electric wire |
| CN112589010A (en) * | 2020-12-15 | 2021-04-02 | 奥盛新材料股份有限公司 | Cutting device for steel strand processing and working method thereof |
| CN213460123U (en) * | 2020-07-30 | 2021-06-15 | 国网重庆市电力公司合川供电分公司 | Solve flexible plasma earthing pole of ready-package that excavation is limited |
-
2021
- 2021-07-28 CN CN202110853723.6A patent/CN113555700B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1214297A (en) * | 1967-02-02 | 1970-12-02 | British Insulated Callenders | Improvements in earth rods |
| JP2000266027A (en) * | 1999-03-18 | 2000-09-26 | Hitachi Ltd | Anchor bolt |
| RU89289U1 (en) * | 2009-05-18 | 2009-11-27 | Игорь Николаевич Урбанович | GROUNDER |
| CN105071063A (en) * | 2015-05-15 | 2015-11-18 | 国家电网公司 | Anti-corrosion connection method of flexible graphite compound earthing material |
| CN207446980U (en) * | 2017-09-30 | 2018-06-05 | 红旗集团江西铜业有限公司 | A kind of adjustable Copper wire extrusion die |
| CN209969386U (en) * | 2019-01-21 | 2020-01-21 | 大庆锐腾科技有限公司 | Bullet frame stamping die |
| CN109755841A (en) * | 2019-01-29 | 2019-05-14 | 中国电力科学研究院有限公司 | One kind is for splicing sleeve crimping automatic crimping machine and compression bonding method |
| CN211638478U (en) * | 2019-12-20 | 2020-10-09 | 福建中成新材料科技有限公司 | Cutting equipment is used in processing of tungsten steel bar convenient to adjust |
| CN212011565U (en) * | 2020-05-21 | 2020-11-24 | 天津津裕电业股份有限公司 | Binding post and crimping device who connects electric wire |
| CN111555051A (en) * | 2020-06-28 | 2020-08-18 | 河南四达电力设备股份有限公司 | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device |
| CN213460123U (en) * | 2020-07-30 | 2021-06-15 | 国网重庆市电力公司合川供电分公司 | Solve flexible plasma earthing pole of ready-package that excavation is limited |
| CN112589010A (en) * | 2020-12-15 | 2021-04-02 | 奥盛新材料股份有限公司 | Cutting device for steel strand processing and working method thereof |
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| CN113555700A (en) | 2021-10-26 |
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