CN109066255B - The crimping structure of steel-cored aluminium strand - Google Patents
The crimping structure of steel-cored aluminium strand Download PDFInfo
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- CN109066255B CN109066255B CN201810844398.5A CN201810844398A CN109066255B CN 109066255 B CN109066255 B CN 109066255B CN 201810844398 A CN201810844398 A CN 201810844398A CN 109066255 B CN109066255 B CN 109066255B
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- plate
- steel
- mounting table
- cored aluminium
- aluminium strand
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- 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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
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Abstract
This patent discloses the crimping structures of steel-cored aluminium strand, including rack, conducting wire mounting table, aluminum pipe mounting table, conducting wire is sent into unit and hydraulic pressure unit, conducting wire mounting table, aluminum pipe mounting table and conducting wire are sent into unit and are sequentially fixed in rack from left to right, it includes side plate that conducting wire, which is sent into unit, support plate, first motor, T-shaped plate and driving mechanism, side plate is fixed on the rack, support plate is slidably connected on side plate, T-shaped plate is fixedly connected with the output shaft of first motor, T-shaped plate top is equipped with the through slot passed through for steel-cored aluminium strand, driving mechanism can push support plate to be moved to the left, hydraulic pressure unit includes top plate, cylinder and hydraulic press, top plate is fixed on the rack, cylinder is fixed on top plate, hydraulic press is fixedly connected with the output shaft of cylinder, hydraulic pressure unit is located at the surface of aluminum pipe mounting table.This programme can complete crimping step using mechanical movement, and be easy to skid off from aluminum pipe after solving the problems, such as steel-cored aluminium strand crimping.
Description
Technical field
The present invention relates to power transmission line crimping structure technical field, the crimping structures of specifically a kind of steel-cored aluminium strand.
Background technique
Hydraulic crimping operation is the common operation work post of electric system, according to " DLT5285-2013 project of transmitting and converting electricity is aerial
Conducting wire and ground wire hydraulic compression-fitting joint process regulation " technological standards, mainly have following five steps: 1. draw print (i.e. measurement wire clamp aluminium
The depth of pipe makes label on conducting wire)；2. poling is to positive (conducting wire that will mark penetrates in aluminum pipe)；3. being placed on
On press-connection machine；4. crimping (i.e. starting press-connection machine, crimped according to pressure criteria to it)；5. secondary treatment is (i.e. pair after crimping
Situations such as burr, overlap after crimping, bending, carries out secondary treatment).
It mostly uses greatly at present and is accomplished manually above-mentioned steps, expend a large amount of manpowers and inefficiency.And two sections of steel-cored aluminium strands
Penetrate in aluminum pipe after being crimped, since two sections of steel-cored aluminium strands are superposed side by side, therefore the friction between two sections of steel-cored aluminium strands compared with
It is small, cause steel-cored aluminium strand end to be easy to skid off from aluminum pipe, so that the steel-cored aluminium strand fracture that crimping is good.
Summary of the invention
The invention is intended to provide the crimping structure of steel-cored aluminium strand, can mechanization be automatically performed crimping step, and solve
The problem of skidding off from aluminum pipe is easy after steel-cored aluminium strand crimping.
In order to achieve the above object, base case of the invention is as follows:
The crimping structure of steel-cored aluminium strand, including rack, conducting wire mounting table, aluminum pipe mounting table, conducting wire are sent into unit and liquid
Unit is pressed, the conducting wire mounting table, aluminum pipe mounting table and conducting wire are sent into unit and are sequentially fixed in rack from left to right, described to lead
Several snap rings are equipped on line mounting table and aluminum pipe mounting table, it includes side plate, support plate, the first electricity that the conducting wire, which is sent into unit,
Machine, T-shaped plate and driving mechanism, the side plate are fixed on the rack, and the support plate is slidably connected on side plate, first electricity
Machine is fixed, and the T-shaped plate is fixedly connected with the output shaft of first motor on the supporting plate, and the T-shaped plate top is equipped with for steel core
The through slot that aluminum stranded conductor passes through, the driving mechanism can push support plate to be moved to the left, and the hydraulic pressure unit includes top plate, cylinder
And hydraulic press, the top plate are fixed on the rack, the cylinder is fixed on the bottom of top plate, the output of the hydraulic press and cylinder
Axis is fixedly connected, and the hydraulic pressure unit is located at the surface of aluminum pipe mounting table, and the support plate left side is equipped with cylinder body, the cylinder body
Piston is inside slidably connected, the first pressure spring, the cylinder body left end connection are fixedly connected between the piston and cylinder body left side wall
There is escape pipe, the nozzle of the escape pipe is located at irriation aluminium pipe mouth.
The principle of base case: aluminum pipe is placed on aluminum pipe mounting table, by left side steel-cored aluminium strand to be crimped (wait press
The both ends steel-cored aluminium strand connect is divided into left side steel-cored aluminium strand and right side steel-cored aluminium strand) right end be put into aluminum pipe, and will be left
Side steel-cored aluminium strand is placed on conducting wire mounting table, and left side steel-cored aluminium strand is fixed on conducting wire mounting table using snap ring, will
Aluminum pipe is fixed on aluminum pipe mounting table, prevents left side steel-cored aluminium strand and aluminum pipe from sliding or rotating.
Right side steel-cored aluminium strand is passed through into through slot, and right side steel-cored aluminium strand left end is located at irriation aluminium pipe mouth.Starting
Driving mechanism, driving mechanism drive support plate be moved to the left, support plate be moved to the left so that right side steel-cored aluminium strand left end gradually
It protrudes into aluminum pipe.Support plate will offset during being moved to the left with piston, and piston is pushed to be moved to the left, the air in cylinder body
It is extruded away from escape pipe, the gas in escape pipe blows to aluminum pipe, and residue, the dust etc. in aluminum pipe are blown away, and guarantees crimping
Quality.During piston is moved to the left, the first pressure spring is compressed and is stored elastic potential energy, when support plate moves right, In
Under the action of the elastic restoring force of first pressure spring, piston moves right return, and extraneous air enters in cylinder body from escape pipe.
When right side steel-cored aluminium strand left end reaches aluminum pipe left end and exposes one section, closes driving mechanism and start the first electricity
Machine, first motor drive T-shaped plate rotation, and right side steel-cored aluminium strand follows T-shaped plate to move, so that right side steel-cored aluminium strand exists
Winding in aluminum pipe.T-shaped plate closes first motor after rotating 5-10 circle.Subsequent start-up cylinder, so that hydraulic press is displaced downwardly to aluminum pipe
Place, is then turned off cylinder and starts hydraulic press, realizes the crimping to aluminum pipe, so that aluminum pipe is closely bonded with steel-cored aluminium strand,
To realize the crimping to steel-cored aluminium strand.
The advantages of base case: (1) using driving mechanism right side steel-cored aluminium strand is driven to enter in aluminum pipe, instead of artificial
Steel-cored aluminium strand is put into aluminum pipe, manpower has been saved.
(2) after when right side, steel-cored aluminium strand enters in aluminum pipe, using the effect of first motor and T-shaped plate, so that right side steel
Core aluminum stranded wire moves in a circle around first motor output shaft axis so that right side steel-cored aluminium strand in aluminum pipe helical form around
On the steel-cored aluminium strand of left side, so that left side steel-cored aluminium strand and the winding of right side steel-cored aluminium strand after crimping, are not susceptible to slide
Situations such as falling.
(3) canoe that this programme uses, so that left side steel-cored aluminium strand keeps straight line, the winding of right side steel-cored aluminium strand
On the outside of the steel-cored aluminium strand of left side, so that the right side steel-cored aluminium strand after winding is neat, the part of protrusion is not had, so that steel core
The contact surface of aluminum stranded conductor and aluminum pipe is bigger, and crimping effect is more preferable.
(4) it is moved to the left using support plate so that the residue dust in aluminum pipe is blown off, be not required to aluminum pipe blowing by escape pipe
Individually aluminum pipe cleaned before crimping, and also need to be dried after cleaning, expend a large amount of manpowers and time.This programme
During steel-cored aluminium strand moves to left on right side, pushes piston is mobile to dry to realize aluminum pipe using support plate, save
Manpower improves efficiency simultaneously.
Further, the driving mechanism includes gear, the second motor and the first rack gear, and second motor is fixed on side plate
On, the gear is fixedly connected with the output shaft of the second motor, and first rack gear is fixed on the lower end of support plate, and the first tooth
Item is engaged with gear.Start the second motor, the second motor driven gear rotates counterclockwise, and the first rack gear engaged with gear is to the left
It is mobile, so that support plate is moved to the left.Support plate is moved to the left drive right side steel-cored aluminium strand and is moved to the left and protrudes into aluminium
Guan Zhong.
Further, the cylinder body right end is fixed there are two supporting plate, and two supporting plates are located at upper and lower ends, two institutes
It states supporting plate end and is respectively and fixedly provided with baffle, be equipped with the opening passed through for support plate between two baffles, above and below the support plate
Both ends of the surface are hinged with movable plate, are fixedly connected to the second pressure spring between two movable plates and support plate, when two work
When movable plate squeezes the second pressure spring, two movable plates can pass through the opening.
Support plate moves left through opening, and movable plate offsets with baffle, when support plate drives movable plate to continue to moving to left
When dynamic, baffle will compress movable plate, so that movable plate is flipped to support plate direction, and the second pressure spring be compressed.This
When movable plate can gradually pass through opening, by movable plate by opening after, movable plate no longer offsets with baffle, and baffle does not support
Pressure effect, under the action of the elastic restoring force of the second pressure spring, movable plate is overturn to the direction of supporting plate.Movable plate is due to gear at this time
The limitation of plate, it is impossible to move right, therefore support plate can not move right, and avoid support plate during subsequent crimping
The case where sliding to the right causes right side steel-cored aluminium strand to skid off aluminum pipe appearance.Sliding support plate to the right is needed after the completion of crimping
When, it manually controls two movable plates and is overturn to the direction of support plate and gradually pass through opening.
Further, the second rack gear being respectively and fixedly provided on two supporting plates towards in the middle part of cylinder body, two movable plate ends
Portion is respectively and fixedly provided with third rack gear, and two third rack gears can be engaged with two the second rack gears respectively.When movable plate passes through opening
Afterwards, not baffle compress effect under, when two movable plates open, third rack gear on movable plate by with second on supporting plate
Rack gear engagement, prevent movable plate and support plate are from moving left and right, avoiding support plate from excessively moving to left causes right side steel-core-aluminium to twist
Line, which protrudes into aluminum pipe excessively and influences, crimps effect, also avoid support plate slide to the right cause on the right side of steel-cored aluminium strand skid off aluminum pipe
Situation occurs.When needing sliding support plate to the right after the completion of crimping, two movable plates are manually controlled to the direction of support plate simultaneously
Hold together, the second rack gear and third rack gear separate at this time, gradually moving active plate and pass through opening.
Further, the upper surface of the conducting wire mounting table is higher than the upper surface of aluminum pipe mounting table.Since aluminum pipe has centainly
Thickness, conducting wire mounting table are more conducive to steel-cored aluminium strand higher than aluminum pipe mounting table and enter in aluminum pipe.
Further, the cylinder body left end offers air inlet, and check valve is equipped at the air inlet, is set on the escape pipe
There is check valve.Gas in cylinder body is blown out from escape pipe and by air inlet from extraneous make-up gas, is avoided from escape pipe
Locate make-up gas, residue, the dust etc. at aluminum pipe are sucked into the problem of leading to outlet blockage in cylinder body.
Further, convex block is equipped on two movable plates.When need to control two pieces of movable plates it is close to support plate when,
Hand clamps convex block can moving active plate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the enlarged diagram of A in Fig. 1.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: rack 1, conducting wire mounting table 2, aluminum pipe mounting table 3, snap ring 4, side plate 5,
Support plate 6, first motor 7, T-shaped plate 8, through slot 9, gear 10, the first rack gear 11, cylinder body 12, piston 13, escape pipe 14, first
Pressure spring 15, air inlet 16, supporting plate 17, baffle 18, movable plate 19, the second pressure spring 20, the second rack gear 21, third rack gear 22, convex block
23, top plate 24, cylinder 25, hydraulic press 26, left side steel-cored aluminium strand 27, aluminum pipe 28, right side steel-cored aluminium strand 29.
Embodiment
Substantially the crimping structure of steel-cored aluminium strand as shown in Figure 1:, including rack 1, conducting wire mounting table 2, aluminum pipe mounting table 3,
Conducting wire is sent into unit and hydraulic pressure unit.Conducting wire mounting table 2, aluminum pipe mounting table 3 and conducting wire are sent into unit and are successively fixed from left to right
In rack 1, two snap rings 4 are welded on conducting wire mounting table 2 and aluminum pipe mounting table 3, aluminium is compared in the upper surface of conducting wire mounting table 2
The high 3mm in the upper surface of pipe mounting table 3.
As shown in connection with fig. 2, it includes side plate 5, support plate 6, first motor 7, T-shaped plate 8 and driving mechanism that conducting wire, which is sent into unit,
Side plate 5 is welded in rack 1, and sliding slot is offered on side plate 5, and support plate 6 is slidably connected in sliding slot.First motor 7 passes through spiral shell
Bolt is fixed in support plate 6, and T-shaped plate 8 and the output shaft of first motor 7 are bolted to connection；8 top of T-shaped plate, which is equipped with, to be supplied
The through slot 9 that steel-cored aluminium strand passes through.Hydraulic pressure unit includes top plate 24, cylinder 25 and hydraulic press 26, and top plate 24 is welded on rack 1
On, cylinder 25 is bolted on the bottom of top plate 24, and hydraulic press 26 and the output shaft of cylinder 25 are bolted to connection,
Hydraulic pressure unit is located at the surface of aluminum pipe mounting table 3.Driving mechanism includes gear 10, the second motor and the first rack gear 11, and second
Motor is bolted on side plate 5, and gear 10 and the output shaft of the second motor are bolted to connection, the first rack gear 11
It is welded on the lower end of support plate 6, and the first rack gear 11 is engaged with gear 10.
6 left side of support plate is equipped with the cylinder body 12 being welded in rack 1, slidably connects piston 13, piston 13 in cylinder body 12
The first pressure spring 15 is welded between 12 left side wall of cylinder body；12 left end of cylinder body is connected with escape pipe 14, the nozzle position of escape pipe 14
At 28 nozzle of aluminum pipe, 12 left end of cylinder body offers air inlet 16, and check valve is equipped at air inlet 16, and escape pipe 14 is equipped with single
To valve.12 right end of cylinder body is welded with two supporting plates 17, and two supporting plates 17 are located at upper and lower ends, and two 17 ends of supporting plate are welded
It is connected to baffle 18, is equipped with the opening passed through for support plate 6 between two baffles 18.6 upper and lower end faces of support plate are hinged with work
Movable plate 19 is welded with convex block 23 on two movable plates 19；The second pressure spring is welded between two movable plates 19 and support plate 6
20, when two movable plates 19 squeeze the second pressure spring 20, two movable plates 19 can pass through opening.It is welded on two supporting plates 17
Towards second rack gear 21 at 12 middle part of cylinder body, two 19 ends of movable plate are welded with third rack gear 22, two third rack gears 22
It can be engaged respectively with two the second rack gears 21.
Specific implementation process is as follows: aluminum pipe 28 being placed on aluminum pipe mounting table 3, by left side steel-cored aluminium strand to be crimped
The right end of 27 (both ends steel-cored aluminium strand to be crimped is divided into left side steel-cored aluminium strand 27 and right side steel-cored aluminium strand 29) is put into aluminium
In pipe 28, and left side steel-cored aluminium strand 27 is placed on conducting wire mounting table 2, is consolidated left side steel-cored aluminium strand 27 using snap ring 4
It is scheduled on conducting wire mounting table 2, aluminum pipe 28 is fixed on aluminum pipe mounting table 3, prevent left side steel-cored aluminium strand 27 and aluminum pipe 28 sliding
It falls or rotates.
Right side steel-cored aluminium strand 29 is passed through into through slot 9, and right side 29 left end of steel-cored aluminium strand is made to be located at 28 nozzle of aluminum pipe
Place.Start the second motor, the second motor driven gear 10 rotates counterclockwise, and the first rack gear 11 engaged with gear 10 is to moving to left
It is dynamic, so that support plate 6 is moved to the left.Support plate 6 is moved to the left drive right side steel-cored aluminium strand 29 and is moved to the left and protrudes into
In aluminum pipe 28.
Support plate 6 will offset during being moved to the left with piston 13, and piston 13 is pushed to be moved to the left, in cylinder body 12
Air is extruded away from escape pipe 14, and the gas in escape pipe 14 blows to aluminum pipe 28, and residue, the dust etc. in aluminum pipe 28 are blown
It walks, guarantees crimp quality.During piston 13 is moved to the left, the first pressure spring 15 is compressed and is stored elastic potential energy, works as support
When plate 6 moves right, under the action of the elastic restoring force of the first pressure spring 15, piston 13 moves right return, extraneous air
Enter in cylinder body 12 from air inlet 16.
Support plate 6 moves left through opening, and movable plate 19 offsets with baffle 18, when support plate 6 drive movable plate 19 after
Continuous baffle 18 will compress movable plate 19 when being moved to the left, so that movable plate 19 is flipped to 6 direction of support plate, and make the
Two pressure springs 20 are compressed.Movable plate 19 can gradually pass through opening at this time, and after movable plate 19 is passed through opening, movable plate 19 is no longer
It offsets with baffle 18, no baffle 18 compresses effect, and under the action of the elastic restoring force of the second pressure spring 20, movable plate 19 is opened
It opens；When two movable plates 19 open, the third rack gear 22 on movable plate 19 will be engaged with the second rack gear 21 on supporting plate 17, so that
Movable plate 19 and support plate 6 cannot move left and right, and avoiding support plate 6 from excessively moving to left causes right side steel-cored aluminium strand 29 to protrude into aluminium
Pipe 28 excessively influence crimping effect, also avoid support plate 6 slide to the right cause on the right side of steel-cored aluminium strand 29 skid off aluminum pipe 28
Situation occurs.When needing sliding support plate 6 to the right after the completion of crimping, hand clamps convex block 23 and controls two movable plates 19 to branch
The direction of fagging 6 is closed up, and the second rack gear 21 and third rack gear 22 separate at this time, gradually moving active plate 19 and passes through opening.
When steel-cored aluminium strand 29 left end in right side reaches 28 left end of aluminum pipe and exposes one section, closes the second motor and start the
One motor 7, first motor 7 drive T-shaped plate 8 to rotate, and right side steel-cored aluminium strand 29 follows T-shaped plate 8 to move, so that right side steel
Core aluminum stranded wire 29 is wound in aluminum pipe 28.First motor 7 is closed after 6 circle of the rotation of T-shaped plate 8.Subsequent start-up cylinder 25, so that liquid
Press 26 is displaced downwardly at aluminum pipe 28, is then turned off cylinder 25 and is started hydraulic press 26, is realized to the hydraulic of aluminum pipe 28, so that aluminum pipe
28 are closely bonded with steel-cored aluminium strand, to realize to the hydraulic of steel-cored aluminium strand.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and/or characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, also
Several modifications and improvements can be made, these also should be considered as protection scope of the present invention, these all will not influence of the invention real
The effect and patent practicability applied.The scope of protection required by this application should be based on the content of the claims, specification
In the records such as specific embodiment can be used for explaining the content of claim.
Claims (7)
1. the crimping structure of steel-cored aluminium strand, it is characterised in that: be sent into including rack, conducting wire mounting table, aluminum pipe mounting table, conducting wire
Unit and hydraulic pressure unit, the conducting wire mounting table, aluminum pipe mounting table and conducting wire are sent into unit and are sequentially fixed at rack from left to right
On, several snap rings are equipped on the conducting wire mounting table and aluminum pipe mounting table, it includes side plate, support that the conducting wire, which is sent into unit,
Plate, first motor, T-shaped plate and driving mechanism, the side plate are fixed on the rack, and the support plate is slidably connected on side plate,
The first motor is fixed on the supporting plate, and the T-shaped plate is fixedly connected with the output shaft of first motor, the T-shaped plate top
Equipped with the through slot passed through for steel-cored aluminium strand, the driving mechanism can push support plate to be moved to the left, the hydraulic pressure unit packet
Top plate, cylinder and hydraulic press are included, the top plate is fixed on the rack, and the cylinder is fixed on the bottom of top plate, the hydraulic press
It is fixedly connected with the output shaft of cylinder, the hydraulic pressure unit is located at the surface of aluminum pipe mounting table, and the support plate left side is equipped with
Cylinder body slidably connects piston in the cylinder body, the first pressure spring is fixedly connected between the piston and cylinder body left side wall, described
Cylinder body left end is connected with escape pipe, and the nozzle of the escape pipe is located at irriation aluminium pipe mouth.
2. the crimping structure of steel-cored aluminium strand according to claim 1, it is characterised in that: the driving mechanism includes tooth
Wheel, the second motor and the first rack gear, second motor are fixed on side plate, and the output shaft of the gear and the second motor is fixed
Connection, first rack gear is fixed on the lower end of support plate, and the first rack and pinion engages.
3. the crimping structure of steel-cored aluminium strand according to claim 1, it is characterised in that: the cylinder body right end is fixed with two
A supporting plate, two supporting plates are located at upper and lower ends, and two supporting plate ends are respectively and fixedly provided with baffle, two baffles
Between be equipped with the opening that passes through for support plate, the support plate upper and lower end faces are hinged with movable plate, two movable plates
The second pressure spring is fixedly connected between support plate, when two movable plates squeeze the second pressure spring, two movable plates can pass through
The opening.
4. the crimping structure of steel-cored aluminium strand according to claim 3, it is characterised in that: fixed on two supporting plates
There is the second rack gear towards in the middle part of cylinder body, two movable plate ends are respectively and fixedly provided with third rack gear, two third rack gears
It can be engaged respectively with two the second rack gears.
5. the crimping structure of steel-cored aluminium strand according to claim 1, it is characterised in that: the upper end of the conducting wire mounting table
Face is higher than the upper surface of aluminum pipe mounting table.
6. the crimping structure of steel-cored aluminium strand according to claim 4, it is characterised in that: the cylinder body left end offer into
Port, check valve is equipped at the air inlet, and the escape pipe is equipped with check valve.
7. the crimping structure of steel-cored aluminium strand according to claim 4, it is characterised in that: be all provided on two movable plates
There is convex block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844398.5A CN109066255B (en) | 2018-07-27 | 2018-07-27 | The crimping structure of steel-cored aluminium strand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844398.5A CN109066255B (en) | 2018-07-27 | 2018-07-27 | The crimping structure of steel-cored aluminium strand |
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| CN109066255A CN109066255A (en) | 2018-12-21 |
| CN109066255B true CN109066255B (en) | 2019-11-19 |
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| CN110364831A (en) * | 2019-08-08 | 2019-10-22 | 贵州电网有限责任公司 | A kind of embedding aluminium crimping structure of the full tension of steel-cored aluminium strand |
| CN111969386B (en) * | 2020-07-30 | 2021-08-17 | 国网山东省电力公司平原县供电公司 | Crimping device of steel-cored aluminum strand |
| CN112563854A (en) * | 2020-11-27 | 2021-03-26 | 安徽迪那通电线有限公司 | Crimping machine for circuit wires |
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| DE112007003312B4 (en) * | 2007-01-31 | 2019-02-07 | Council Of Scientific & Industrial Research | Method for connecting oxide superconducting tubes with a superconducting joint |
| CN101626133B (en) * | 2009-06-16 | 2010-12-29 | 珠海恒阳科技有限公司 | Automatic peeling device of winding machine |
| CN104538815B (en) * | 2014-12-02 | 2016-08-24 | 国网河南省电力公司洛阳供电公司 | A kind of correcting unit of aluminium hydraulic pressed connecting pipe |
| CN106229785A (en) * | 2016-07-27 | 2016-12-14 | 苏州水木清华设计营造有限公司 | Electrical wire connection method |
| CN206379606U (en) * | 2016-09-27 | 2017-08-04 | 程前 | A kind of jointing clamp of power engineering |
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