CN112054365B - Hydraulic compression joint method for ground wire special for power transmission line in severe cold environment - Google Patents
Hydraulic compression joint method for ground wire special for power transmission line in severe cold environment Download PDFInfo
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- CN112054365B CN112054365B CN202010887647.6A CN202010887647A CN112054365B CN 112054365 B CN112054365 B CN 112054365B CN 202010887647 A CN202010887647 A CN 202010887647A CN 112054365 B CN112054365 B CN 112054365B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
- B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
- B21F15/06—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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Abstract
The application relates to a hydraulic compression joint method of a ground wire special for a power transmission line in a severe cold environment, which relates to the field of power transmission line installation, and comprises the following steps: inserting an aluminum sleeve into one end of the inner side of the compression joint aluminum pipe, then inserting a ground wire to be pressed into the aluminum sleeve inserted with the compression joint aluminum pipe, and inserting the other ground wire to be pressed into the other aluminum sleeve; sleeving a crimping steel pipe on a to-be-pressed wire core of the to-be-pressed ground wire, enabling the to-be-pressed wire cores of the two to-be-pressed ground wires to be opposite, and adjusting the crimping steel pipe to a to-be-pressed position; crimping the steel pipe, moving the aluminum pipe and the aluminum sleeve penetrating the aluminum pipe after crimping, sleeving the aluminum pipe outside the other aluminum sleeve, moving the aluminum sleeve and the aluminum pipe to a crimping position, and crimping; the steps are all carried out in the automatic correction crimping device. The efficiency of the ground wire is led in the crimping of weather cold area can effectively be improved to this application.
Description
Technical Field
The application relates to the field of installation of power transmission lines, in particular to a hydraulic compression joint method for a ground wire special for the power transmission lines in a severe cold environment.
Background
The ground wire is the most important element in the transmission line, and the ground wire can transmit power to users, so that a power network is formed, and power supply of each place is balanced.
In the process of overhead power transmission line construction, a hydraulic pressure compression joint mode is widely adopted for connecting the ground wires, firstly, the outer skins of the end walls of the ground wires are removed, the wire cores of the ground wires are leaked, then, aluminum sleeves are sleeved on the outer sides of the two ground wires with the outer skins, and then, aluminum pipes are sleeved on the outer sides of the two aluminum sleeves; and then operating the hydraulic pliers, pressing the wire cores of the two ground wires together by using the steel pipe, and pressing the ground wires, the aluminum sleeve and the aluminum pipe together to realize the integral pressing connection of the two ground wires.
With respect to the related art in the above, the inventors consider that: the position of current aluminium sleeve pipe, steel pipe and aluminum pipe all needs artifical manual regulation calibration, and to the chilly area of weather, the operator workman points stiffly easily, influences crimping efficiency.
Disclosure of Invention
In order to improve the efficiency of crimping the ground wire in cold weather areas, the application provides a hydraulic crimping method of the ground wire special for the power transmission line in the severe cold environment.
The application provides a special ground wire hydraulic pressure crimping method of transmission line for severe cold environment, adopts following technical scheme:
a hydraulic pressure crimping method of a ground wire special for a power transmission line in a severe cold environment comprises the following steps:
inserting an aluminum sleeve into one end of the inner side of the compression joint aluminum pipe, then inserting a ground wire to be pressed into the aluminum sleeve inserted with the compression joint aluminum pipe, and inserting the other ground wire to be pressed into the other aluminum sleeve;
sleeving a crimping steel pipe on a to-be-pressed wire core of the to-be-pressed ground wire, enabling the to-be-pressed wire cores of the two to-be-pressed ground wires to be opposite, and adjusting the crimping steel pipe to a to-be-pressed position;
crimping the steel pipe to be crimped, moving the aluminum crimping pipe and the aluminum sleeve penetrating the aluminum crimping pipe after crimping is finished, enabling the aluminum crimping pipe to be sleeved outside the other aluminum sleeve, moving the two aluminum sleeves and the aluminum crimping pipe to crimping positions, and crimping the aluminum sleeves and the aluminum crimping pipe;
the steps are all carried out in the automatic correction crimping device.
By adopting the technical scheme, the ground wire to be pressed, the compression joint aluminum pipe, the aluminum sleeve and the compression joint steel pipe are placed at the specified positions of the automatic correction compression joint device as required, then the automatic correction compression joint device is operated, the correction of the positions of the compression joint aluminum pipe and the aluminum sleeve can be completed, and finally the automatic correction compression joint device is operated to perform compression joint work, so that the compression joint of the ground wire can be completed, the labor of operators is reduced, and the compression joint efficiency of the ground wire in cold weather areas is greatly improved.
Optionally, the automatic correction crimping device comprises a transposition bottom rail, a support table, a mounting seat, hydraulic tongs and a positioning piece, wherein the number of the support tables is at least two, the support table, the mounting seat and the positioning piece are all arranged on the transposition bottom rail in a sliding manner, the bottom ends of the support table, the mounting seat and the positioning piece are all provided with brake pieces, and the mounting seat and the positioning piece are positioned between the two support tables; the hydraulic clamp is installed on the top end of the installation seat, and a clamping piece used for clamping the ground wire to be pressed is arranged on the supporting table.
By adopting the technical scheme, the support table can support the two ground wire bodies, so that the crimping ends of the two ground wire bodies can be kept horizontal, and the stability of crimping work is improved; and the supporting table, the mounting seat and the positioning piece can move to a specified position by utilizing the sliding on the transposition bottom rail, and the aluminum sleeve which is spliced with the crimping aluminum pipe and is opened is placed on the positioning piece in the initial stage, so that after the crimping steel pipe is crimped by utilizing the hydraulic clamp, the positioning piece is operated, the crimping aluminum pipe and the aluminum sleeve which is spliced with the crimping aluminum pipe at the beginning can be moved to the specified position, and the crimping work is completed by matching with another aluminum sleeve.
Optionally, the positioning element includes a positioning support rod, a positioning seat, a movable support seat and a linkage element, the positioning support rod and the positioning seat are slidably arranged on the transposition bottom rail, the brake element is arranged at the bottom ends of the positioning support rod and the positioning seat, the positioning support rod and the positioning seat are arranged at two sides of the mounting seat, the positioning support rod and the positioning seat are arranged between the two support tables, the movable support seat is arranged at the top end of the positioning seat, and the linkage element is arranged on the movable support seat; the aluminum sleeve comprises a first sleeve and a second sleeve, wherein the first sleeve is an aluminum sleeve which is firstly inserted into a compression joint aluminum pipe; the movable supporting seat is used for supporting the crimping aluminum pipe, the linkage piece is used for driving the crimping aluminum pipe and the mounting seat to move together, and when the positioning support rod is abutted against the movable supporting seat, the first sleeve and the crimping aluminum pipe both move to the specified position.
By adopting the technical scheme, the second sleeve is sleeved on one ground wire body, the first sleeve and the compression aluminum pipe are sleeved and then integrally sleeved on the other ground wire body, the compression steel pipe is sleeved on the two compression wire cores, the positioning support rod is positioned on one side of the second sleeve far away from the first sleeve, and the movable support seat, the first sleeve and the compression aluminum pipe are positioned on one side of the hydraulic clamp far away from the second sleeve; utilize hydraulic tong to carry out the crimping to the crimping steel pipe, treat that hydraulic tong opens the back, remove the positioning seat, under the effect of linkage, it can move towards second sleeve side to remove to prop the seat, simultaneously, it passes the opening of hydraulic tong and continues to move to remove to prop the seat, until removing prop the seat and fix a position branch butt, crimping aluminum pipe and first sleeve this moment remove to the regulation position, then will remove seat and positioning seat and remove reverse movement and return the normal position, this in-process crimping aluminum pipe and first sleeve are stayed the regulation position, it can to carry out the crimping to crimping aluminum pipe and aluminum sleeve finally to utilize hydraulic tong.
Optionally, the linkage member includes a linkage abutting rod and a linkage spiral ring, the movable supporting seat penetrates through the feeding groove along the vertical direction, the linkage abutting rod slides along the vertical direction and is arranged on the wall of the feeding groove, the linkage spiral ring rotates and is arranged on the lower surface of the movable supporting seat, the linkage spiral ring is in threaded connection with the linkage abutting rod, and the linkage abutting rod is abutted to one end, away from the second sleeve, of the compression joint aluminum pipe and one end, away from the second sleeve, of the first sleeve simultaneously.
By adopting the technical scheme, the linkage abutting rod abuts against one end, far away from the second sleeve, of the first sleeve and the compression joint aluminum pipe, so that when the movable support seat moves, the linkage abutting rod can drive the first sleeve and the compression joint aluminum pipe to move together; because the linkage abutting rod only slides along the vertical direction, when the linkage spiral ring is rotated, the linkage spiral ring and the linkage abutting rod can generate thread feeding, so that the linkage abutting rod can slide in the vertical direction, and the linkage abutting rod can be suitable for first sleeves and compression joint aluminum pipes with different thicknesses.
Optionally, an inner pipe wall of the first sleeve is provided with a rough layer, and an outer pipe wall of the crimping aluminum pipe is provided with a smooth layer.
By adopting the technical scheme, the friction force between the first sleeve and the ground wire to be pressed is increased, and the friction force between the compression joint aluminum pipe and the movable support seat is reduced, so that the movable support seat can be smoothly separated from the compression joint aluminum pipe and moved to the initial position after the first sleeve and the aluminum pipe to be pressed are moved to the specified position.
Optionally, the sunken guide way that is provided with in transposition end rail upper surface, brace table, mount pad, setting element bottom all are provided with the guide slide, the slide setting of guide slide bottom is on the guide way cell wall, the guide slide lower surface is provided with the rotation groove, it is provided with the travelling wheel to rotate between the rotation groove cell wall, the brake spare includes push-and-pull rod, brake block and pedal, the push-and-pull groove has been seted up on the axial lateral wall of guide slide, the push-and-pull groove rotates the groove and communicates with each other, the push-and-pull rod slides and sets up on the push-and-pull groove cell wall, the brake block sets up on the lateral wall that the push-and-pull rod is located the rotation groove, one side lateral wall butt of brake block and travelling wheel, the feed groove is stretched out to the one end that the rotation groove was kept away from to the push-and-pull rod, the pedal sets up the one end that stretches out the feed groove at the push-and pull rod.
By adopting the technical scheme, the travelling wheels slide in the guide grooves, so that the azimuth change of the support table, the mounting seat and the positioning piece on the transposition slide rail can be realized; meanwhile, as long as an operator hooks the pedals with feet, the push-pull rod can drive the brake block to move, and the rotation of the travelling wheel can be limited by using the abutting friction force between the brake block and the travelling wheel, so that the movement of the supporting table, the mounting seat and the positioning piece is limited.
Optionally, the feed groove is provided with a step-down groove extending in a direction perpendicular to the axis of the travelling wheel, a positioning groove is formed in a groove wall of the step-down groove, which is far away from the feed groove, a positioning head is arranged on a side wall of the push-pull rod, which is located in the feed groove, and the positioning head slides in the step-down groove or is magnetically inserted into the positioning groove; when the positioning head is magnetically inserted into the positioning groove, the brake block is abutted against the side wall of the travelling wheel.
By adopting the technical scheme, after the brake block is abutted against the travelling wheel, the pedal is continuously applied with force, so that the push-pull rod drives the positioning head to be inserted into the positioning groove, the movement of the push-pull rod can be limited in the axial direction of the travelling wheel, and the brake block can be abutted against the travelling wheel more stably.
Optionally, the clamping member includes a clamping ring seat, a clamping rod, a pressing head, a driving ring and a driving screw sleeve, the clamping ring seat is disposed at the top end of the supporting table, the clamping ring seat is provided with an operating ring cavity, at least three clamping grooves extending to the operating ring cavity are disposed on an inner annular wall of the clamping ring seat, the clamping rods and the clamping grooves are disposed in one-to-one correspondence, the clamping rods slide radially along the clamping ring seat and are disposed on a groove wall of the clamping grooves, the pressing head is disposed at one end of the clamping rods away from the clamping ring seat, the driving ring is rotatably disposed on an outer side wall of the clamping ring seat, one end of the driving ring extends into the operating ring cavity, a first conical tooth is disposed on an inner annular wall of the operating ring cavity, the driving screw sleeve is rotatably disposed on a cavity wall of the operating ring cavity, an outer annular wall of the driving screw sleeve is provided with a second conical tooth, the second conical tooth is engaged with the first conical tooth, and the inner ring wall of the driving threaded sleeve is in threaded connection with the clamping rod.
Through adopting above-mentioned technical scheme, rotate the drive ring for first awl tooth and second awl tooth meshing, thereby the drive ring drives the drive swivel nut and rotates, makes drive swivel nut and supporting rod threaded connection, and the supporting rod can rely on the screw thread to feed, drives to press the first centre gripping to hold and wait to press and lead the ground wire.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the automatic correction crimping device can be operated to finish the correction of the positions of the crimped aluminum pipe and the aluminum sleeve, so that the labor of operators is reduced, and the crimping efficiency of the ground wire in cold weather areas is greatly improved;
2. in the automatic proofreading crimping device in this application, set up the setting element, can remove the position of regulation to crimping aluminum pipe, aluminum sleeve pipe automatically.
Drawings
Fig. 1 is a schematic structural diagram of an automatic calibration crimping device in an embodiment of the present application.
FIG. 2 is a top view of an automated proofreading crimping apparatus of an embodiment of the present application.
Fig. 3 is a cross-sectional view at a-a in fig. 2.
Fig. 4 is an enlarged view at C in fig. 3.
Fig. 5 is a sectional view at B-B in fig. 2.
Fig. 6 is a schematic structural view of a holder in an embodiment of the present application.
Fig. 7 is an enlarged view at D in fig. 5.
Figure 8 is a perspective cross-sectional view of the brake member structure in the embodiment of the present application.
Description of reference numerals: 1. a ground wire is to be pressed; 12. an aluminum sleeve; 121. a first sleeve; 1211. a rough layer; 1212. a smoothing layer; 122. a second sleeve; 13. crimping the steel pipe; 14. crimping an aluminum pipe; 15. waiting for pressing the wire core; 2. a bottom rail is transposed; 21. a guide groove; 22. a guide slider; 221. a rotating groove; 222. a traveling wheel; 223. a push-pull groove; 224. a yielding groove; 225. positioning a groove; 3. a support table; 4. a mounting seat; 5. hydraulic tongs; 6. a positioning member; 61. positioning the supporting rod; 62. positioning seats; 63. moving the support seat; 64. a linkage member; 641. a linkage resisting rod; 642. a linkage loop ring; 643. a feed slot; 7. a braking member; 71. a push-pull rod; 711. positioning the head; 72. a brake block; 73. pedaling; 8. a clamping member; 81. a clamping ring seat; 811. operating the ring cavity; 812. clamping the walking groove; 82. a clamping rod; 83. a compression head; 84. a drive ring; 841. a first bevel gear; 85. driving the threaded sleeve; 861. and a second conical tooth.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
As shown in fig. 1 and 2, the automatic calibration crimping device mainly includes a transposition bottom rail 2, at least two support tables 3, two or three support tables 3, two support tables 3 in this embodiment, two support tables 3, two mount tables 4, and two positioning members 6, and the support tables 3, the mount tables 4, and the positioning members 6 are slidably disposed on the transposition bottom rail 2, and meanwhile, the bottom ends of the support tables 3, the mount tables 4, and the positioning members 6 are all provided with brake members 7, and the brake members 7 are used for fixing the support tables 3, the mount tables 4, and the positioning members 6 on the transposition bottom rail 2; and the mounting seat 4 and the positioning piece 6 are positioned between the two supporting tables 3; the hydraulic tong 5 is installed on the top of the installation seat 4, and the support table 3 is further provided with a clamping piece 8 for clamping the ground wire 1 to be pressed. Before carrying out crimping work, utilize holder 8 to wait to press two and lead ground wire 1 centre grippings on a supporting bench 3 for a supporting bench 3 will wait to press two crimping side bearings that lead ground wire 1 on same horizontal plane, then reuse hydraulic tong 5 and setting element 6, press two and lead ground wire 1 and carry out the crimping.
As shown in fig. 3 and 4, in the present embodiment, the aluminum sleeve 12 includes a first sleeve 121 and a second sleeve 122, and the first sleeve 121 is the aluminum sleeve 12 which is firstly inserted into the crimping aluminum pipe 14; the positioning part 6 comprises a positioning support rod 61, a positioning seat 62, a movable supporting seat 63 and a linkage part 64, the bottom ends of the positioning support rod 61 and the positioning seat 62 are arranged on the transposition bottom rail 2 in a sliding mode, therefore, the brake part 7 is arranged at the bottom ends of the positioning support rod 61 and the positioning seat 62, the installation seat 4 is arranged between the positioning seat 62 and the positioning support rod 61, the movable supporting seat 63 is integrally connected to the top end of the positioning seat 62, and the linkage part 64 is arranged on the movable supporting seat 63.
In this embodiment, after the ground wires 1 to be pressed are clamped on the support 3, the first sleeve 121 is pre-inserted into the pressing aluminum pipe 14, one ground wire 1 to be pressed is inserted into the first sleeve 121, the pressing aluminum pipe 14 is placed on the movable support base 63, another ground wire 1 to be pressed is inserted into the second sleeve 122, and then the pressing steel pipe 13 is sleeved outside the cores 15 of the two ground wires 1 to be pressed; in the crimping process, the positioning support rod 61 is firstly moved to the side of the second sleeve 122 away from the first sleeve 121, in the embodiment, the positioning support rod 61 is abutted against the side of the second sleeve 122 away from the first sleeve 121, and then the positioning support rod 61 is fixed by the brake piece 7; then the hydraulic clamp 5 will carry on the crimping to the steel tube 13 first, after the crimping is finished, the hydraulic clamp 5 opens; then, the positioning seat 62 is moved, under the linkage action of the linkage piece 64, the movable supporting seat 63 drives the pressure-welded steel tube 13 and the first sleeve 121 to move towards the second sleeve 122, the movable supporting seat 63 penetrates through the opening of the hydraulic tong 5 until one end, away from the positioning seat 62, of the movable supporting seat 63 abuts against the positioning support rod 61, at this time, the first sleeve 121 and the pressure-welded aluminum tube 14 move to a specified position, one side, away from the first sleeve 121, of the pressure-welded aluminum tube 14 is sleeved on the outer side of the second sleeve 122, then the positioning seat 62 is moved in the reverse direction, the movable supporting seat 63 is separated from the pressure-welded aluminum tube 14 and moves to an initial position, the positioning seat 62 is fixed by using the brake piece 7, and finally, the hydraulic tong 5 is moved on the transposition bottom rail 2, so that the hydraulic tong 5 performs pressure-welding on the pressure-welded aluminum tube 14 and the first sleeve 121, the pressure-welded aluminum tube 14 and the second sleeve 122.
As shown in fig. 4, in order to facilitate the separation of the movable support 63 from the compression aluminum pipe 14, in the present embodiment, the inner wall of the first sleeve 121 is integrally connected to a rough layer 1211, and the outer wall of the compression aluminum pipe 14 is integrally connected to a smooth layer 1212. Therefore, the friction force between the first sleeve 121 and the ground wire 1 to be pressed is increased, the friction force between the pressing aluminum pipe 14 and the movable supporting seat 63 is reduced, and the movable supporting seat 63 can be separated from the pressing aluminum pipe 14 more quickly.
As shown in fig. 4, the linkage member 64 of the present embodiment includes a linkage abutting rod 641 and a linkage spiral ring 642, wherein the moving support base 63 is provided with a feeding slot 643 in a penetrating manner along the vertical direction, the linkage abutting rod 641 is slidably disposed on the slot wall of the feeding slot 643 along the vertical direction, the linkage spiral ring 642 is rotatably disposed on the lower surface of the moving support base 63, and meanwhile, the linkage spiral ring 642 is in threaded connection with the linkage abutting rod 641; before the movable support seat 63 moves towards the second sleeve 122, the linkage spiral ring 642 is rotated, so that the linkage spiral ring 642 is in threaded connection with the linkage abutting rod 641, the linkage abutting rod 641 moves in the vertical direction until the linkage abutting rod 641 and one end, far away from the second sleeve 122, of the compression joint aluminum pipe 14 abut against one end, far away from the second sleeve 122, of the first sleeve 121 simultaneously, then the support seat 63 is moved, the linkage abutting rod 641 abuts against the first sleeve 121 and the compression joint aluminum pipe 14, and the first sleeve 121 and the compression joint aluminum pipe 14 move together with the movable support seat 63 towards the second sleeve 122.
As shown in fig. 5 and 6, the clamping member 8 includes a clamping ring seat 81, a clamping rod 82, a pressing head 83, a driving ring 84 and a driving screw 85, the clamping ring seat 81 is integrally connected to the top end of the supporting table 3, and the axial direction of the clamping ring seat 81 is the same as the axial direction of the ground wire 1 to be pressed; an operation ring cavity 811 is formed in the clamping ring seat 81, at least three clamping walking grooves 812 extending to the operation ring cavity 811 are formed in the inner annular wall of the clamping ring seat 81, the number of the clamping walking grooves 812 can be three, four or the like, and the number of the clamping walking grooves 812 in the embodiment is three; the clamping rods 82 and the clamping walking grooves 812 are arranged in a one-to-one correspondence mode, so that the number of the clamping rods 82 is three, the clamping rods 82 are arranged on the groove wall of the clamping walking grooves 812 in a sliding mode along the radial direction of the clamping ring seat 81, and the pressing head 83 is integrally connected to one end, away from the operation ring cavity 811, of each clamping rod 82 and extends out of the clamping walking grooves 812.
As shown in fig. 5 and 6, the driving ring 84 is rotatably disposed on the outer side wall of the clamping ring seat 81, one end of the driving ring 84 extends into the operating ring cavity 811, a first taper tooth 841 is integrally connected to the inner annular wall of the operating ring cavity 811 where the driving ring 84 extends, the driving screw 85 is rotatably disposed on the cavity wall of the operating ring cavity 811, a second taper tooth 861 is integrally connected to the outer annular wall of the driving screw 85, the second taper tooth 861 is engaged with the first taper tooth 841, and the inner annular wall of the driving screw 85 is threadedly connected with the clamping rod 82. Firstly, the ground wire 1 to be pressed is inserted into the clamping ring seat 81, then the driving ring 84 is rotated, so that the first bevel gear 841 is meshed with the second bevel gear 861, the driving screw sleeve 85 can be driven to rotate, the driving screw sleeve 85 and the clamping rod 82 are driven to rotate in a threaded manner, and the clamping rod 82 can drive the pressing head 83 to clamp the ground wire 1 to be pressed.
As shown in fig. 7 and 8, in the embodiment, a guide groove 21 is concavely arranged on the upper surface of the transposition bottom rail 2, the bottom ends of the support table 3, the mounting seat 4, the positioning support rod 61 and the positioning seat 62 are all integrally connected with a guide slider 22, the bottom end of the guide slider 22 is slidably arranged on the groove wall of the guide groove 21, a rotating groove 221 is further formed in the lower surface of the guide slider 22, a traveling wheel 222 is rotatably arranged between the groove walls of the rotating groove 221, and the guide slider 22 can slidably move in the guide groove 21 by means of the traveling wheel 222; the brake piece 7 comprises a push-pull rod 71, a brake block 72 and a pedal 73, wherein the axial side wall of the guide slide block 22 is provided with a push-pull groove 223, the push-pull groove 223 is communicated with the rotating groove 221, the push-pull rod 71 is arranged on the groove wall of the push-pull groove 223 in a sliding mode, the brake block 72 is integrally connected to the side wall, located on the rotating groove 221, of the push-pull rod 71, one end, far away from the rotating groove 221, of the push-pull rod 71 extends out of the feeding groove 643, and the pedal 73 is arranged at one end, extending out of the feeding groove 643, of the push-pull rod 71. When the guide slider 22 slides in the guide groove 21, the brake block 72 is far away from the traveling wheel 222, and when the guide slider 22 needs to be fixed, the main operator steps on the pedal 73 with his foot, and forcibly moves the push-pull rod 71, so that the brake block 72 abuts against the traveling wheel 222.
As shown in fig. 8, in the present embodiment, the feeding groove 643 is provided with an abdicating groove 224 extending along a direction perpendicular to the axis of the traveling wheel 222, a positioning groove 225 is recessed on a groove wall of the abdicating groove 224 away from the feeding groove 643, and a positioning head 711 is integrally connected to a side wall of the push-pull rod 71 located in the feeding groove 643; when the push-pull rod 71 is moved, the positioning head 711 slides in the receding groove 224; after the brake block 72 abuts against the side wall of the traveling wheel 222, the positioning head 711 is opposite to the positioning groove 225, and the push-pull rod 71 is moved in the horizontal direction with force, so that the positioning head 711 is magnetically inserted into the positioning groove 225, and the movement of the push-pull rod 71 in the axial direction of the traveling wheel 222 can be reduced, and the brake block 72 is stably abutted against the traveling wheel 222.
The embodiment of the application also discloses a hydraulic pressure crimping method of the ground wire special for the power transmission line in the severe cold environment, which comprises the following steps:
first, two ground wires 1 to be pressed are inserted into the corresponding clamp ring seats 81, and then the drive ring 84 is rotated so that the pressing heads 83 press the ground wires 1 to be pressed.
Then, the first sleeve 121 is threaded in the crimping aluminum pipe 14, then the ground wire 1 to be crimped on the side of the movable stay 63 is threaded in the first sleeve 121, and the crimping aluminum pipe 4 is covered and placed on the upper surface of the movable stay 43; the movable stay 63 on the side of the positioning rod 61 is inserted into the second sleeve 122.
And then sleeving the crimping steel pipe 13 on the wire pressing cores 15 to be pressed of the ground wires 1 to be pressed, and adjusting the crimping steel pipe 13 to the position to be pressed by opposite wire pressing cores 15 to be pressed of the two ground wires 1 to be pressed.
The hydraulic pliers 5 are operated to crimp the steel pipe 13, and after the crimping is completed, the hydraulic pliers 5 are opened.
Rotating the linkage spiral ring 642 to enable the linkage abutting rod 641 to move upwards until the linkage abutting rod 641 abuts against one end, far away from the second sleeve 122, of the crimping aluminum pipe 14 and one end, far away from the second sleeve 122, of the first sleeve 121 simultaneously, and then moving the support base 63 to enable the first sleeve 121 and the crimping aluminum pipe 14 to move together with the support base 63 towards the second sleeve 122; until one end of the movable support base 63, which is far away from the positioning base 62, abuts against the positioning support rod 61, at this time, the first sleeve 121 and the crimping aluminum pipe 14 move to a specified position, one side of the crimping aluminum pipe 14, which is far away from the first sleeve 121, is sleeved on the outer side of the second sleeve 122, then the positioning base 62 is moved reversely, so that the movable support base 63 is separated from the crimping aluminum pipe 14 and moves to an initial position, the positioning is fixed by using the brake 7, and finally the hydraulic clamp 5 is moved on the transposition bottom rail 2, so that the hydraulic clamp 5 crimps the crimping aluminum pipe 14, the first sleeve 121, the crimping aluminum pipe 14 and the second sleeve 122.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A hydraulic pressure crimping method of a ground wire special for a power transmission line in a severe cold environment is characterized by comprising the following steps:
inserting a first sleeve (121) at one end of the inner side of a crimping aluminum pipe (14), then inserting a ground wire (1) to be pressed into the first sleeve (121) inserted with the crimping aluminum pipe (14), and inserting another ground wire (1) to be pressed into a second sleeve (122);
sleeving a crimping steel pipe (13) on to-be-pressed wire cores (15) of the to-be-pressed ground wires (1), enabling the to-be-pressed wire cores (15) of the two to-be-pressed ground wires (1) to be opposite, and adjusting the crimping steel pipe (13) to a to-be-pressed position;
crimping the crimping steel pipe (13), after crimping is finished, moving the crimping aluminum pipe (14) and a first sleeve (121) penetrating through the crimping aluminum pipe (14) to enable the crimping aluminum pipe (14) to be sleeved on the outer side of a second sleeve (122), moving the first sleeve (121), the second sleeve (122) and the crimping aluminum pipe (14) to a crimping position, and crimping the first sleeve (121), the second sleeve (122) and the crimping aluminum pipe (14);
the steps are all carried out in an automatic correction crimping device;
the automatic correction crimping device comprises a transposition bottom rail (2), a support table (3), an installation seat (4), hydraulic tongs (5) and positioning pieces (6), wherein the number of the support tables (3) is at least two, the support table (3), the installation seat (4) and the positioning pieces (6) are arranged on the transposition bottom rail (2) in a sliding mode, brake pieces (7) are arranged at the bottom ends of the support table (3), the installation seat (4) and the positioning pieces (6), and the installation seat (4) and the positioning pieces (6) are located between the two support tables (3); the hydraulic clamp (5) is installed at the top end of the installation seat (4), and a clamping piece (8) for clamping the ground wire (1) to be pressed is arranged on the supporting table (3);
the positioning piece (6) comprises a positioning support rod (61), a positioning seat (62), a movable supporting seat (63) and a linkage piece (64), wherein the positioning support rod (61) and the positioning seat (62) are arranged on the transposition bottom rail (2) in a sliding manner, the brake piece (7) is arranged at the bottom ends of the positioning support rod (61) and the positioning seat (62), the positioning support rod (61) and the positioning seat (62) are positioned on two sides of the installation seat (4), the positioning support rod (61) and the positioning seat (62) are positioned between the two supporting tables (3), the movable supporting seat (63) is arranged at the top end of the positioning seat (62), and the linkage piece (64) is arranged on the movable supporting seat (63); the aluminum sleeve (12) comprises a first sleeve (121) and a second sleeve (122), wherein the first sleeve (121) is the aluminum sleeve (12) which is firstly inserted into the compression aluminum pipe (14); the movable supporting seat (63) is used for supporting the crimping aluminum pipe (14), the linkage piece (64) is used for driving the crimping aluminum pipe (14) and the mounting seat (4) to move together, and when the positioning support rod (61) is abutted to the movable supporting seat (63), the first sleeve (121) and the crimping aluminum pipe (14) move to the specified position.
2. The hydraulic pressure crimping method for the ground wire special for the power transmission line in the severe cold environment according to claim 1, characterized in that: the linkage piece (64) comprises a linkage abutting rod (641) and a linkage spiral ring (642), a feeding groove (643) penetrates through the movable supporting seat (63) along the vertical direction, the linkage abutting rod (641) is arranged on the groove wall of the feeding groove (643) in a sliding mode along the vertical direction, the linkage spiral ring (642) is rotatably arranged on the lower surface of the movable supporting seat (63), the linkage spiral ring (642) is in threaded connection with the linkage abutting rod (641), and the linkage abutting rod (641) is abutted to one end, far away from the second sleeve pipe (122), of the pressure welding aluminum pipe (14) and one end, far away from the second sleeve pipe (122), of the first sleeve pipe (121) at the same time.
3. The hydraulic pressure crimping method for the ground wire special for the power transmission line in the severe cold environment according to claim 2, characterized in that: the inner pipe wall of the first sleeve (121) is provided with a rough layer (1211), and the outer pipe wall of the crimping aluminum pipe (14) is provided with a smooth layer (1212).
4. The hydraulic pressure crimping method for the ground wire special for the power transmission line in the severe cold environment according to claim 1, characterized in that: the transposition bottom rail (2) is provided with a guide groove (21) in a sunken manner on the upper surface, a guide sliding block (22) is arranged at the bottom ends of the support table (3), the mounting seat (4) and the positioning part (6), the guide sliding block (22) is arranged at the bottom end of the guide sliding block (22) in a sliding manner on the groove wall of the guide groove (21), a rotating groove (221) is arranged on the lower surface of the guide sliding block (22), a traveling wheel (222) is arranged between the groove walls of the rotating groove (221) in a rotating manner, the brake part (7) comprises a push-pull rod (71), a brake block (72) and a pedal (73), the push-pull groove (223) is formed in the axial side wall of the guide sliding block (22), the push-pull groove (223) is communicated with the rotating groove (221), the push-pull rod (71) is arranged on the groove wall of the push-pull rod (223), the brake block (72) is abutted to the side wall of the traveling wheel (222), one end of the push-pull rod (71) far away from the rotating groove (221) extends out of the feeding groove (643), and the pedal (73) is arranged at one end of the push-pull rod (71) extending out of the feeding groove (643).
5. The hydraulic pressure crimping method for the ground wire special for the power transmission line in the severe cold environment according to claim 4, characterized in that: the feeding groove (643) is provided with a yielding groove (224) in an extending mode along the direction perpendicular to the axis of the travelling wheel (222), a positioning groove (225) is arranged on the groove wall, away from the feeding groove (643), of the yielding groove (224), a positioning head (711) is arranged on the side wall, located in the feeding groove (643), of the push-pull rod (71), and the positioning head (711) slides in the yielding groove (224), or the positioning head (711) is magnetically inserted into the positioning groove (225); when the positioning head (711) is magnetically inserted into the positioning groove (225), the brake block (72) is abutted against the side wall of the travelling wheel (222).
6. The hydraulic pressure crimping method for the ground wire special for the power transmission line in the severe cold environment according to claim 1, characterized in that: the clamping piece (8) comprises a clamping ring seat (81), a clamping rod (82), a pressing head (83), a driving ring (84) and a driving screw sleeve (86), the clamping ring seat (81) is arranged at the top end of the supporting table (3), an operating ring cavity (811) is formed in the clamping ring seat (81), at least three clamping walking grooves (812) extending to the operating ring cavity (811) are formed in the inner annular wall of the clamping ring seat (81), the clamping rods (82) and the clamping walking grooves (812) are arranged in a one-to-one correspondence manner, the clamping rods (82) are radially arranged on the groove wall of the clamping walking grooves (812) in a sliding manner along the clamping ring seat (81), the pressing head (83) is arranged at one end, far away from the clamping ring seat (81), of the driving ring (84) is rotatably arranged on the outer side wall of the clamping ring seat (81), one end of the driving ring (84) extends into the operating ring cavity (811), the driving ring (84) extends into the inner annular wall of the operating annular cavity (811) and is provided with first bevel teeth (841), the driving screw sleeve (86) is rotatably arranged on the cavity wall of the operating annular cavity (811), the outer annular wall of the driving screw sleeve (86) is provided with second bevel teeth (861), the second bevel teeth (861) are meshed with the first bevel teeth (841), and the inner annular wall of the driving screw sleeve (86) is in threaded connection with the clamping rod (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887647.6A CN112054365B (en) | 2020-08-28 | 2020-08-28 | Hydraulic compression joint method for ground wire special for power transmission line in severe cold environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887647.6A CN112054365B (en) | 2020-08-28 | 2020-08-28 | Hydraulic compression joint method for ground wire special for power transmission line in severe cold environment |
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| CN112054365A CN112054365A (en) | 2020-12-08 |
| CN112054365B true CN112054365B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113036676B (en) * | 2021-04-30 | 2022-10-28 | 宝合工业工具(上海)有限公司 | Automatic crimping platform of transmission cable |
| CN114725845B (en) * | 2022-03-09 | 2024-05-17 | 广州科瑞电力工程技术有限公司 | Cable adapter device for power engineering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623868A (en) * | 2012-04-28 | 2012-08-01 | 四川电力送变电建设公司 | Hydraulic connection operating platform of grounding wires |
| CN103337808A (en) * | 2013-06-17 | 2013-10-02 | 国家电网公司 | Special ground conducting wire hydraulic compression connection method for transmission line |
| CN209766826U (en) * | 2019-06-18 | 2019-12-10 | 姜存喜 | Auxiliary device for crimping of ground wire of power transmission line |
-
2020
- 2020-08-28 CN CN202010887647.6A patent/CN112054365B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623868A (en) * | 2012-04-28 | 2012-08-01 | 四川电力送变电建设公司 | Hydraulic connection operating platform of grounding wires |
| CN103337808A (en) * | 2013-06-17 | 2013-10-02 | 国家电网公司 | Special ground conducting wire hydraulic compression connection method for transmission line |
| CN209766826U (en) * | 2019-06-18 | 2019-12-10 | 姜存喜 | Auxiliary device for crimping of ground wire of power transmission line |
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| CN112054365A (en) | 2020-12-08 |
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