CN103280739A - Installation device of conducting rods - Google Patents
Installation device of conducting rods Download PDFInfo
- Publication number
- CN103280739A CN103280739A CN2013101472734A CN201310147273A CN103280739A CN 103280739 A CN103280739 A CN 103280739A CN 2013101472734 A CN2013101472734 A CN 2013101472734A CN 201310147273 A CN201310147273 A CN 201310147273A CN 103280739 A CN103280739 A CN 103280739A
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- adjusting rod
- guide body
- conducting rod
- fulcrum
- erecting device
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Abstract
The invention discloses an installation device of conducting rods. The installation device is characterized in that a guiding body is provided with three supporting-point seats and adjusting rods hinged to the supporting-point seats; an adjusting rod group is bridged between the front and rear two adjacent supporting-point seats; each adjusting rod group consists of at least two pairs of adjusting rods which are uniformly distributed at intervals along the circumferential direction surrounding a central axis; each pair of adjusting rods consist of a long adjusting rod and a short adjusting rod, which have different lengths; the supporting seat at the frontmost side or the rearmost side in all the supporting-point seats is a fixed supporting-point seat which is fixedly arranged on or integrally arranged with the guiding body, and the other supporting-point seats are movable supporting-point seats assembled on the guiding body along the front-rear directions in a guiding manner; and blocking pieces are arranged on the guiding body. The installation device disclosed by the invention has the advantages that when the installation device is used, the positions of the blocking pieces are adjusted on the guiding body along the front-rear direction, and rollers are driven by the expanding-retracting movement of the inner ends of all pairs of adjusting rods to move radially along the positioning circumference, so that the installation device is applicable to the installation of the conducting rods in sleeves with different diameters.
Description
Technical field
The present invention relates to conducting rod erecting device technical field, be particularly useful for high pressure, ultra high voltage, EHV bushing assembly technology.
Background technology
At present, electric pressure rising along with high voltage electric equipment, the creepage distance of turnover line porcelain bushing (composite bushing) and insulation distance also increase thereupon, the diameter of corresponding porcelain bushing and length also increase thereupon, diameter as 1,000,000 volts of turnover line porcelain bushings reaches more than one meter, and length reaches tens meters long especially.In the porcelain bushing of this length when conducting rod is installed, the phenomenon that exists conducting rod " to bow ", general solution has following two kinds: a kind of method is directly to increase the sheath of being made by flexible material in the end of conducting rod, contact with internal surface of sleeve pipe with sheath, though this method sheath is simple in structure, but between sheath and porcelain bushing, there is bigger friction, in the process that sheath moves with conducting rod, the end of conducting rod usually can be exposed from sheath, so that sheath is not in place to the protection of conducting rod, make the end of conducting rod directly to contact with the inwall of porcelain bushing, finally cause the inwall of porcelain bushing to scratch; Another kind method is to use a jigger to hold conducting rod at inside pipe casing, avoid the end of conducting rod and the inwall of sleeve pipe to collide with, this method is no doubt simple, but in use, jigger can only be avoided the collide with inwall of porcelain bushing of the end of conducting rod, can not help conducting rod centering and location, in follow-up assembly work, the centering and the location that also need other means to assist, this has just increased the labour intensity of conducting rod assembling.
It is a kind of for GIS three-phase non-segregated bus conducting rod frock guide car that notification number is that the Chinese utility model patent of CN202363840U discloses, the discoid guide body and the positioning disk that distribute successively before and after this guide car comprises, coaxial being connected of connecting rod that guide body and positioning disk extend by front and back, the relative conductor bores of passing for for conducting rod to be installed that offers on guide body and positioning disk, hole wall in conductor bores is evenly equipped with several trundles, and on the periphery of guide body several big rollers, to make by big roller in the coaxial endoporus that slips into bus bar canister of guide body, guarantee that the touch base on the disk insulator is relative on conductor bores and the bus bar canister on guide body and the positioning disk, but the continuous increase along with the bus bar canister caliber, guide body on the corresponding this guide car and the diameter of positioning disk also need corresponding increase, thereby make whole guide car become heavy, the amount of labour and the work difficulty of conducting rod installed in increase in bus bar canister, reduce the work effect.
Summary of the invention
The purpose of this invention is to provide the conducting rod erecting device that a kind of structure is light and handy, the scope of application is wide.
In order to realize above purpose, the technical scheme of conducting rod erecting device of the present invention is as follows:
The conducting rod erecting device, this conducting rod erecting device has the datum axis that is used for aiming at the axis that is mounted sleeve pipe the coincidence setting of setting, the conducting rod erecting device comprises the guide body for fixing assembling conducting rod, the axis that guide body has for the restriction conducting rod that assembles overlaps with described datum axis or parallel location structure, described guide body is provided with wheel carrier, wheel carrier comprises three fulcrum blocks that are arranged at intervals at before and after the datum axis direction on the guide body, be hinged on the adjusting rod on the fulcrum block, bridge joint has an adjusting rod group between adjacent two fulcrum blocks in front and back, each adjusting rod group is formed around the circumferential adjusting rod uniformly at intervals of described central axis by at least two pairs of edges, every pair of adjusting rod is by the length that is uneven in length, the minor pole is formed, each minor pole has the inner that is hinged on the fulcrum block that mediates in three fulcrum blocks, be hinged on the outer end at long adjusting rod middle part, each long adjusting rod has the inner that is hinged on the fulcrum block that is in front side or rear side in three fulcrum blocks, be rotatably equipped with the outer end of roller, together to long in the adjusting rod, the be placed in both sides, front and back of minor pole outer end, the inner of minor pole, and the inner of each long adjusting rod in the same adjusting rod group, the outer end of each long adjusting rod, the inner of each minor pole, the outer end of each minor pole is in respectively on the center of circle and the location circumference that described datum axis overlaps, plane, circumference place, described location is vertical with described datum axis, and each is long, in the minor pole, the pivot center at place, outer end is the tangential extension of the location circumference of edge correspondence respectively; The fulcrum block of front side or rear side is for fixing or be wholely set and deciding fulcrum block, all the other fulcrum blocks for being assemblied in the activity supporting point seat on the guide body along the fore-and-aft direction guiding on the guide body in described each fulcrum block, and is provided with for stoping in guide body and decides dorsad away from an activity supporting point seat decide fulcrum block that fulcrum block moves, the adjustable removable stop part that is connected on the guide body in front and back also.
Described guide body is that axis overlaps with described datum axis, also is used for the sleeve of coaxial package on the conducting rod periphery, and described location structure is the inwall of guide body.
The inwall of described guide body is provided be used to the flexible cushion that is looped around the electric conductor periphery.
Described block member is the baffle ring that is sleeved on the guide body periphery, and the baffle ring coaxial threaded is connected on the periphery of guide body.
Described fulcrum block is the circular body of coaxial package on the guide body periphery.
The end of described guide body is provided be used to the hitch structure of tying up stay cord.
Described each adjusting rod group is made up of around the circumferential adjusting rod uniformly at intervals of described central axis at least three pairs of edges.
The present invention's guide body be provided with wheel carrier, wheel carrier comprises and is arranged at intervals with three fulcrum blocks before and after the datum axis, adjusting rod on the hinged support seat, bridge joint has an adjusting rod group between adjacent two fulcrum blocks in front and back, each adjusting rod group is formed around the circumferential adjusting rod uniformly at intervals of described central axis by at least two pairs of edges, every pair of adjusting rod is by the length that is uneven in length, the minor pole is formed, each minor pole has the inner that is hinged on the fulcrum block that mediates in three fulcrum blocks, be hinged on the outer end at long adjusting rod middle part, each long adjusting rod has the inner that is hinged on the fulcrum block that is in front side or rear side in three fulcrum blocks, be rotatably equipped with the outer end of roller, together to long in the adjusting rod, the be placed in both sides, front and back of minor pole outer end, the inner of minor pole, and the inner of each long adjusting rod in the same adjusting rod group, the outer end of each long adjusting rod, the inner of each minor pole, the outer end of each minor pole is in respectively on the center of circle and the location circumference that described datum axis overlaps, plane, circumference place, described location is vertical with described datum axis, and each is long, in the minor pole, the pivot center at place, outer end is the tangential extension of the location circumference of edge correspondence respectively; The fulcrum block of front side or rear side is for fixing or be wholely set and deciding fulcrum block, all the other fulcrum blocks for being assemblied in the activity supporting point seat on the guide body along the fore-and-aft direction guiding on the guide body in described each fulcrum block, and is provided with for stoping in guide body and decides dorsad away from an activity supporting point seat decide fulcrum block that fulcrum block moves, the adjustable removable stop part that is connected on the guide body in front and back also.In use, by adjust the position of stop part at guide body upper edge fore-and-aft direction, so that the spacing between adjacent two fulcrum blocks increases or dwindles, driving in the corresponding group each by adjacent two fulcrum blocks mobile opens the inner of adjusting rod or closes up, driving the roller that assembles on adjusting rod outer end by each inner opening and closing campaign to adjusting rod on the same group moves radially along described location circumference, change the diameter of the roller location of living in circumference of same adjusting rod group correspondence among the present invention, conducting rod erecting device of the present invention is applicable in the sleeve pipe of different tube diameters conducting rod is installed, and then compare with the erecting device of solid shape in the prior art, make conducting rod erecting device of the present invention have structure beneficial effect light and handy and applied widely.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention under the use state.
Embodiment
The embodiment of conducting rod erecting device of the present invention: as Fig. 1, Fig. 2 and shown in Figure 3, the guide body 1 of the circular sleeve shape that extends before and after this conducting rod erecting device comprises, at guide body 1 the periphery wheel carrier 4 that arranges and the roller 5 that rolls frame 4 installings, the axis of described guide body 1 is for being used in installation process, aim at the datum axis that overlaps setting with the axis that is mounted sleeve pipe, described wheel carrier 4 is by the block member that is threaded on the guide body 1 two ends periphery, front and back three fulcrum blocks uniformly at intervals between two block members, the adjusting rod of bridge joint constitutes on fulcrum block, wherein two block members are the baffle ring 2 of coaxial package on guide body front end periphery, three fulcrum blocks are respectively in the past backward the preceding adjustable ring 31 of coaxial package on the guide body periphery successively, middle adjustable ring 32 and back adjustable ring 33, before adjustable ring 31 and middle adjustable ring 32 all be to be contained in activity supporting point seat on guide body 1 periphery along the fore-and-aft direction fairlead, back adjustable ring 33 is the fulcrum blocks of deciding that are fixed on guide body 1 periphery, adjusting rod group before adjusting rod before being between adjustable ring 31 and the middle adjustable ring 32 is formed, the adjusting rod that is between adjustable ring 32 and the back adjustable ring 33 is formed back adjusting rod group, before, each adjusting rod all along described guide body circumferentially in pairs uniformly at intervals in the back adjusting rod group, namely, back adjusting rod group is by forming along the circumferential paired three pairs of adjusting rods uniformly at intervals of described guide body, and each to adjusting rod by minor pole 41 the preceding and after long adjusting rod 42 form, and preceding, each that belongs in the back adjusting rod group not on the same group alignd at fore-and-aft direction in twos to adjusting rod.The inner of the preceding short-and-medium adjusting rod 41 of adjusting rod group is hinged on the preceding adjustable ring 31, the outer end is hinged on the middle part of long adjusting rod 42, the front side of adjustable ring 32 during the inner of long adjusting rod 42 is hinged in the long adjusting rod 42 in the preceding adjusting rod group, the outer end of middle part and minor pole 41 forms the binding site of every pair of adjusting rod 4, be rotatably equipped with roller 5 on the outer end, so that in the preceding adjusting rod group every pair of adjusting rod by length, minor pole 41,42 form herringbone structure, long, minor pole 41, the inner of 42 is in interior setting circle that the center of circle overlaps with described datum axis respectively on week, the outer end of minor pole 42 is on the middle location circumference that the center of circle overlaps with described datum axis, the outer end of long adjusting rod 41 is on the center of circle and the outside fix circumference that described datum axis overlaps, and in, in, the plane at outside fix circumference place all perpendicular to described be datum axis, long, minor pole 41, the pivot center of the articulated structure at 42 inner end positions place is along the tangential extension in described interior setting circle week, the pivot center of the articulated structure at minor pole 42 outer end position places is along the tangential extension of described middle location circumference, and the pivot center of long adjusting rod 41 outer end position place rollers 5 is along the tangential extension of described outside fix circumference.The inner of the short-and-medium adjusting rod 41 of back adjusting rod group is hinged on the adjustable ring 32 of back, the outer end is hinged on the middle part of long adjusting rod 42, adjustable ring 33 rear sides during the inner of long adjusting rod 42 is hinged in the back adjusting rod group, the outer end of middle part and minor pole 41 forms the binding site of every pair of adjusting rod, be rotatably equipped with roller 5 on the outer end, so that in the adjusting rod group of back every pair of adjusting rod 4 by length, minor pole 41 is formed into the font structure, long, minor pole 41, the inner of 42 is in interior setting circle that the center of circle overlaps with described datum axis respectively on week, the outer end of minor pole 42 is on the middle location circumference that the center of circle overlaps with described datum axis, the outer end of long adjusting rod 41 is on the center of circle and the outside fix circumference that described datum axis overlaps, and in, in, the plane at outside fix circumference place all perpendicular to described be datum axis, long, minor pole 41, the pivot center of the articulated structure at 42 inner end positions place is along the tangential extension in described interior setting circle week, the pivot center of the articulated structure at minor pole 42 outer end position places is along the tangential extension of described middle location circumference, and the pivot center of long adjusting rod 41 outer end position place rollers 5 is along the tangential extension of described outside fix circumference.
The inwall of described guide body 1 is provided with flexible cushion, and the two ends of guide body 1 are equipped with hitch structure, and this hitch structure is for being used for tying up the bridle port 6 of pull rope.
Present embodiment conducting rod erecting device in use; this conducting rod erecting device slips in the sleeve pipe 7 by roller 5; and after rotating baffle ring 2; every pair of adjusting rod 4 inner fork position under the promotion of corresponding adjustable ring 3 is drawn in or is opened; so that each to the roller 5 equal roll extrusion on the adjusting rod 4 on the inwall of sleeve pipe 7; thereby group adjusting rod 4 and back group adjusting rod 4 all form the three points centering structure in the periphery of guide body 1 before making; guarantee the axiality of guide body 1 endoporus and sleeve pipe 7 endoporus; can to draw whole conducting rod erecting device axially mobile in the endoporus of sleeve pipe 7 and tie up the stay cord that is fixed on the described bridle port 6; so just make the conducting rod erecting device in sleeve pipe, form umbrella rib structure; the conducting rod erecting device can be regulated the circumscribed circle diameter of self according to the caliber of sleeve pipe 7, guarantees the installation accuracy of conducting rod 8 in sleeve pipe 7.
In addition, in the above-described embodiments, guide body and adjusting rod adopt light-weight metal or lightweight nonmetallic materials to make, as materials such as aluminium alloy, fiberglass, polytetrafluoros, roller then is to make with the material of destructive envelope inside pipe wall not, as plastics, rubber, poly fourfluoroplastics etc., to reduce the weight of whole conducting rod erecting device, make whole conducting rod erecting device have the light and handy characteristics of structure.
In the above-described embodiments, be provided with bridle port at the guide body two ends, to tie up fixed pulling rope, being convenient to draw guide body moves forward and backward in sleeve pipe, in other embodiments, described bridle port also can use other binder structure such as U-bolt, hitching post to replace, and perhaps directly removes described binder structure, pull rope directly is banded on the periphery of guide body.
In the above-described embodiments, inwall in guide body is provided with flexible cushion, on the periphery that is centered around electric conductor, avoid electric conductor directly to contact the damage that both are caused with the guide body inwall, in other embodiments, in the damage of not considering that electric conductor periphery and guide body inwall collide with mutually and bring, on the guide body inwall, also can remove described flexible cushion.
In the above-described embodiments, guide body is circular sleeve, so that the inwall of guide body by be used for restriction the location structure that overlaps with described datum axis of the axis of assembling conducting rod, so that in sleeve pipe coaxial installation electric conductor, in other embodiments, guide body also can be for the block that at least two conducting rods are installed in sleeve pipe, this corresponding guide body also should have cylindric outer peripheral face, electric conductor also can be by being threaded simultaneously, removable fixing mechanisms such as flange connection are connected on the guide body, be described being threaded, removable fixing mechanisms such as flange connection are corresponding location structure, this belongs to prior art, therefore repeats no more.
In the above-described embodiments, in the forward and backward adjusting rod group each alignd at fore-and-aft direction in twos mutually to adjusting rod, so that the both sides, front and back of adjustable ring during the inner of sides adjacent adjusting rod can be hinged in the forward and backward adjusting rod group, guarantee the globality of whole conducting rod erecting device, and the structure of simplification conducting rod erecting device, in other embodiments, each in the front and back group adjusting rod also can stagger at fore-and-aft direction mutually to adjusting rod.
In the above-described embodiments, adjustable ring is three, and in other embodiments, adjustable ring also can be two or more than three, and the group number of corresponding adjusting rod is one group or more than two groups.
In the above-described embodiments, each is made up of long and short adjusting rod adjusting rod, to shorten each to the total length of adjusting rod, in other embodiments, each also can be formed by connecting by the adjusting rod of two equal in length to adjusting rod, corresponding each outer end or middle part to two adjusting rods in the adjusting rod are hinged, and namely every pair of adjusting rod is inverted v-shaped structure or X-shaped structure, and corresponding roller rotates and is assemblied on the outer end of one or two adjusting rod.
In the above-described embodiments, an adjusting rod group is by forming around described datum axis three pairs of adjusting rods uniformly at intervals, in other embodiments, the adjusting rod logarithm that comprises in adjusting rod group also can be two pairs or more than three pairs, and each needs around described datum axis uniformly at intervals adjusting rod in the same adjusting rod group.
In the above-described embodiments, the axis of guide body is datum axis, fulcrum block is the adjustable ring of coaxial package on guide body, in other embodiments, described guide body also can be offset to a side of datum axis, corresponding datum axis is appointed the straight line of so locating the place, the center of circle of circumference for each, and the bearing of trend of guide body should be parallel with described datum axis; And fulcrum block also can be several be assemblied in slide block on the guide body along the fore-and-aft direction guiding, the dependence block member that is synchronized with the movement of a circle slide block of a circle slide block of corresponding front side and rear side is realized.
In the above-described embodiments, the block member that arranges on the guide body periphery is the baffle ring that coaxial threaded is connected the guide body two ends, in other embodiments, described baffle ring also can use members such as alignment pin, positioning retainer ring to replace, corresponding structures such as the pin-and-hole that distributes before and after the row, draw-in groove need be set in guide body, above-mentioned block member by corresponding construction be connected with guide body before and after realizing adjustable removable be connected to belong to well known to a person skilled in the art technological means, therefore repeat no more.
Claims (7)
1. conducting rod erecting device, this conducting rod erecting device has the datum axis that is used for aiming at the axis that is mounted sleeve pipe the coincidence setting of setting, the conducting rod erecting device comprises the guide body for fixing assembling conducting rod, the axis that guide body has for the restriction conducting rod that assembles overlaps with described datum axis or parallel location structure, it is characterized in that: described guide body is provided with wheel carrier, wheel carrier comprises three fulcrum blocks that are arranged at intervals at before and after the datum axis direction on the guide body, be hinged on the adjusting rod on the fulcrum block, bridge joint has an adjusting rod group between adjacent two fulcrum blocks in front and back, each adjusting rod group is formed around the circumferential adjusting rod uniformly at intervals of described central axis by at least two pairs of edges, every pair of adjusting rod is by the length that is uneven in length, the minor pole is formed, each minor pole has the inner that is hinged on the fulcrum block that mediates in three fulcrum blocks, be hinged on the outer end at long adjusting rod middle part, each long adjusting rod has the inner that is hinged on the fulcrum block that is in front side or rear side in three fulcrum blocks, be rotatably equipped with the outer end of roller, together to long in the adjusting rod, the be placed in both sides, front and back of minor pole outer end, the inner of minor pole, and the inner of each long adjusting rod in the same adjusting rod group, the outer end of each long adjusting rod, the inner of each minor pole, the outer end of each minor pole is in respectively on the center of circle and the location circumference that described datum axis overlaps, plane, circumference place, described location is vertical with described datum axis, and each is long, in the minor pole, the pivot center at place, outer end is the tangential extension of the location circumference of edge correspondence respectively; The fulcrum block of front side or rear side is for fixing or be wholely set and deciding fulcrum block, all the other fulcrum blocks for being assemblied in the activity supporting point seat on the guide body along the fore-and-aft direction guiding on the guide body in described each fulcrum block, and is provided with for stoping in guide body and decides dorsad away from an activity supporting point seat decide fulcrum block that fulcrum block moves, the adjustable removable stop part that is connected on the guide body in front and back also.
2. conducting rod erecting device according to claim 1 is characterized in that, described guide body is that axis overlaps with described datum axis, also is used for the sleeve of coaxial package on the conducting rod periphery, and described location structure is the inwall of guide body.
3. conducting rod erecting device according to claim 2 is characterized in that, the inwall of described guide body is provided be used to the flexible cushion that is looped around the electric conductor periphery.
4. conducting rod erecting device according to claim 2 is characterized in that, described block member is the baffle ring that is sleeved on the guide body periphery, and the baffle ring coaxial threaded is connected on the periphery of guide body.
5. conducting rod erecting device according to claim 2 is characterized in that, described fulcrum block is the circular body of coaxial package on the guide body periphery.
6. according to any described conducting rod erecting device in the claim 1 to 5, it is characterized in that the end of described guide body is provided be used to the hitch structure of tying up stay cord.
7. according to any described conducting rod erecting device in the claim 1 to 5, it is characterized in that described each adjusting rod group is made up of around the circumferential adjusting rod uniformly at intervals of described central axis at least three pairs of edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147273.4A CN103280739B (en) | 2013-04-25 | 2013-04-25 | A kind of conducting rod erecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147273.4A CN103280739B (en) | 2013-04-25 | 2013-04-25 | A kind of conducting rod erecting device |
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| Publication Number | Publication Date |
|---|---|
| CN103280739A true CN103280739A (en) | 2013-09-04 |
| CN103280739B CN103280739B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310147273.4A Active CN103280739B (en) | 2013-04-25 | 2013-04-25 | A kind of conducting rod erecting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143789A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Conducting rod assembling tool |
| CN104143793A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Three-phase common tank conducting rod assembling tool |
| CN104143790A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Three-point centered conducting rod assembling tool |
| CN104332902A (en) * | 2014-07-08 | 2015-02-04 | 国家电网公司 | Swinging three-phase common-box conductive rod assembling tool |
| CN109659866A (en) * | 2019-01-31 | 2019-04-19 | 国家电网有限公司 | A kind of Guide vehicle for high pressure GIS conductor installation |
| CN112428220A (en) * | 2020-10-23 | 2021-03-02 | 中国一冶集团有限公司 | Chain mounting device and chain mounting method for buried scraper conveyor |
| CN116979428A (en) * | 2023-09-22 | 2023-10-31 | 国网山西省电力公司太原供电公司 | Cable laying device |
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| WO2002082151A1 (en) * | 2001-04-07 | 2002-10-17 | Ccs Technology, Inc. | Cable laying and apparatus therefor |
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| CN2083353U (en) * | 1990-08-30 | 1991-08-21 | 中国人民解放军58005部队 | Tube threading device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143789A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Conducting rod assembling tool |
| CN104143793A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Three-phase common tank conducting rod assembling tool |
| CN104143790A (en) * | 2014-07-08 | 2014-11-12 | 国家电网公司 | Three-point centered conducting rod assembling tool |
| CN104332902A (en) * | 2014-07-08 | 2015-02-04 | 国家电网公司 | Swinging three-phase common-box conductive rod assembling tool |
| CN104143790B (en) * | 2014-07-08 | 2017-01-04 | 国家电网公司 | Three-point centering conducting rod assembling tool |
| CN104143789B (en) * | 2014-07-08 | 2017-02-01 | 国家电网公司 | Conducting rod assembling tool |
| CN109659866A (en) * | 2019-01-31 | 2019-04-19 | 国家电网有限公司 | A kind of Guide vehicle for high pressure GIS conductor installation |
| CN112428220A (en) * | 2020-10-23 | 2021-03-02 | 中国一冶集团有限公司 | Chain mounting device and chain mounting method for buried scraper conveyor |
| CN116979428A (en) * | 2023-09-22 | 2023-10-31 | 国网山西省电力公司太原供电公司 | Cable laying device |
| CN116979428B (en) * | 2023-09-22 | 2023-11-28 | 国网山西省电力公司太原供电公司 | Cable laying device |
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|---|---|
| CN103280739B (en) | 2015-09-02 |
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