CN110233457B - Wire traction device - Google Patents
Wire traction device Download PDFInfo
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- CN110233457B CN110233457B CN201910445768.2A CN201910445768A CN110233457B CN 110233457 B CN110233457 B CN 110233457B CN 201910445768 A CN201910445768 A CN 201910445768A CN 110233457 B CN110233457 B CN 110233457B
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- 230000000694 effects Effects 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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Abstract
The invention provides a lead traction device, which belongs to the technical field of power transmission line construction and comprises a fixed part, a traction part, an adjusting component, a drainage end and a clamping component, wherein the fixed part is arranged on a pole; according to the wire traction device provided by the invention, the positioning part can lock the fixing part and the traction part, the tensioning degree of the wire is controlled and the wire error is adjusted through the sleeve, so that the wire error is adjusted, the clamping assembly is good in clamping effect, not easy to loosen, good in wire clamping effect and capable of improving the stringing construction efficiency.
Description
Technical Field
The invention belongs to the technical field of power transmission line construction, and particularly relates to a lead traction device.
Background
At present, a tension stringing mode is generally used for erecting the overhead transmission line conductor in China, namely, the conductor and the ground wire are unfolded by utilizing construction machinery such as a tractor, a tensioner and the like to be separated from the ground and an obstacle in an overhead state in the unfolding process, and the operations such as wire tightening, wire hanging, accessory installation and the like are carried out by using a process method matched with tension stringing, so that the erection of the conductor and the ground wire is completed. In addition, after the power transmission line is erected, one end of a conducting wire needs to be fixed on a cross arm or a pole through a wire clamp so as to tension the power transmission line.
A large amount of various wire clamps can be used in an electric power system, the wire clamp is a non-bearing type electric power connection fitting, and the wire clamp is mainly used for cables, wires, leading wires and connection between devices, the current wire clamp is formed by connecting parts which are difficult to disassemble and assemble through bolts or hinges and the like, most wire clamp main bodies can only realize the function of connecting the wires with a fixed body, the error of the wires in the stringing can not be adjusted, or the function of adjusting the tightness is realized, the common wire clamp has poor clamping effect on the wires, the wires can slide after being clamped for a long time, the phenomena of loosening and the like are generated, the stringing construction efficiency is influenced, the maintenance cost of the wire clamp is high, and the wire clamp needs to be replaced by a new wire clamp.
Disclosure of Invention
The invention aims to provide a lead traction device, and aims to solve the technical problems that the error of a conventional wire clamp on a lead cannot be adjusted, the clamping effect on the lead is poor and the lead is easy to loosen in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a wire pulling device comprising:
the fixing part is used for connecting a telegraph pole or a cross arm;
the traction part is used for drawing the lead and fixedly arranged at the end head of the lead;
the adjusting assembly comprises a sleeve and a positioning part, wherein the sleeve is in threaded connection with the fixing part and the traction part respectively, and the positioning part penetrates through the sleeve and is used for positioning the fixing part or the traction part respectively; the distance between the fixed part and the traction part is adjusted by means of the rotation of the sleeve;
the drainage end is used for leading out a steel strand or an optical cable in a wire and comprises an anchor ear for tightly holding the sleeve and a drainage plate fixedly arranged on the side part of the anchor ear;
and the clamping assembly is fixedly arranged at the end part of the sleeve and is used for clamping the lead circumferentially.
Further, the fixing portion includes
The retaining ring is in a closed ring shape and is fixedly connected with the telegraph pole or the cross arm;
the first thread section is provided with a first external thread, and one end of the first thread section is fixedly connected with the end part of the retaining ring;
and the first connecting section is provided with a first through hole for the positioning part to pass through, and one end of the first connecting section is fixedly connected with the other end of the first threaded section.
Further, the traction part comprises
The second thread section is provided with a second external thread, and one end of the second thread section is fixedly connected with the end part of the lead;
the second connecting section is provided with a second through hole for the positioning part to pass through, and one end of the second connecting section is fixedly connected with the other end of the second threaded section; the first external thread and the second external thread are opposite in rotation direction.
Furthermore, two sections of internal threads are arranged inside the sleeve, and openings are formed in the two ends of the sleeve;
the internal thread close to the fixing part and the internal thread close to the traction part are opposite in rotation direction.
Further, the positioning portion includes
The two strip-shaped through holes are respectively arranged along the axial direction of the sleeve and are oppositely arranged;
a plurality of studs respectively penetrate through the two strip-shaped through holes and the first through hole/the second through hole and are used for fixing the fixing part/the traction part;
and a plurality of nuts are respectively in threaded connection with two ends of the stud and used for fastening the fixing part/the traction part.
Further, the clamping assembly comprises
The shell is annular, and the end face of the shell is fixedly connected with the end face of the sleeve;
the clamping pieces are uniformly arranged on the shell in the circumferential direction, are provided with external threads, penetrate through the shell and are in threaded connection with the shell, and are used for pushing the lead;
the locking piece is arranged outside the shell and is in threaded connection with the clamping piece, and the locking piece is used for locking the clamping piece.
Further, the clamping assembly further comprises
The rotating piece is sleeved at the inner end of the clamping piece;
and the pushing piece is arc-shaped, sleeved on the rotating piece, rotatably connected with the clamping piece and used for pushing the lead.
Further, the clamping assembly further comprises
And the anti-skidding piece is fixedly arranged on the inner side surface of the ejecting piece and comprises a plurality of anti-skidding teeth, and the anti-skidding teeth are in contact with the wire.
Furthermore, the clamping piece is T-shaped, a groove is formed in the outer circumference of the shell, a plurality of third through holes are uniformly formed in the inner circumference of the groove in the circumferential direction, and the third through holes are used for the clamping piece to penetrate through and are in threaded connection with the shell.
Further, the number of the clamping pieces is 3-5.
Further, the radian of the inner edge of the ejector piece is matched with the radian of the outer edge of the lead.
The lead traction device provided by the invention has the beneficial effects that: compared with the prior art, the wire traction device has the advantages that the fixing part is fixed on the wire pole or the cross arm, the traction part is fixed at the end part of the wire, the fixing part and the traction part are inserted into two ends of the sleeve at the same time, the sleeve is rotated and the distance between the fixing part and the traction part or the tensioning degree of the wire is adjusted, after the tensioning degree of the wire is adjusted, the fixing part and the traction part are locked through the positioning part, the optical cable in the wire is fed and discharged by the drainage end, the wire can be clamped by the clamping assembly arranged in addition, the wire is prevented from sliding or loosening, the clamping effect is ensured, and the device realizes the functions of error adjustment and wire tightness of the wire in the stringing process; through sleeve control wire tensioning degree, and then realize adjusting the wire error, clamping assembly presss from both sides tightly effectually, and is difficult not hard up, has solved the fastener and can not adjust the wire error, and it is not good to press from both sides tight effect to the wire, easily causes not hard up technical problem, has the overhead line error to wire or transmission line and adjusts, presss from both sides tightly effectually to the wire, prevents the wire slippage or not hard up, improves the technological effect of overhead line efficiency of construction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a lead wire pulling apparatus according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the fixing portion of FIG. 1;
FIG. 3 is a cross-sectional view of the traction part of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the adjustment assembly of FIG. 1;
FIG. 5 is a schematic cross-sectional view of the drainage end of FIG. 1;
FIG. 6 is a cross-sectional structural schematic view of the clamping assembly of FIG. 1;
FIG. 7 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 9 is a schematic cross-sectional view B-B of the alternate embodiment of FIG. 1.
In the figure: 1. a fixed part; 11. a retaining ring; 12. a first thread segment; 13. a first connection section; 131. a first through hole; 2. a traction part; 21. a second thread segment; 22. a second connection section; 221. a second through hole; 3. an adjustment assembly; 31. a sleeve; 32. a positioning part; 321. a strip-shaped through hole; 322. a stud; 323. a nut; 4. a drainage end; 41. hooping; 42. a drainage plate; 5. a clamping assembly; 51. a housing; 52. a clamping member; 53. a locking member; 54. a rotating member; 55. pushing the ejection piece; 56. an anti-slip member; 57. a groove; 58. a third through hole; 6. and (4) conducting wires.
The arrows in the figure indicate the direction of rotation of the sleeve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 9 together, a wire drawing device according to the present invention will now be described. The lead traction device comprises a fixing part 1, a traction part 2, an adjusting component 3, a drainage end 4 and a clamping component 5.
The fixing part 1 is used for connecting a telegraph pole or a cross arm, and is a part which is directly fixed on the telegraph pole or the cross arm and plays a role in fixing.
The traction part 2 is used for drawing the lead 6 and is fixedly arranged at the end of the lead 6, the traction part 2 is fixedly connected with the end of the lead 6, the connection mode is not limited, and can be welding, riveting or anchoring connection and the like, and the connection stability between the traction part 2 and the lead 6 is ensured.
The adjusting component 3 comprises a sleeve 31 which is respectively in threaded connection with the fixing part 1 and the traction part 2 and a positioning part 32 which penetrates through the sleeve 31 and is respectively used for positioning the fixing part 1 or the traction part 2; the distance between the fixed part 1 and the traction part 2 is adjusted by means of the rotation of the sleeve 31; because the sleeve 31 is respectively in threaded connection with the fixed part 1 and the traction part 2, the fixed part 1 and the traction part 2 can move relatively or reversely by rotating the sleeve 31, the distance between the fixed part 1 and the traction part 2 can be adjusted, and further the tensioning degree of the lead 6 can be adjusted, so that the error of the lead 6 in erection construction can be adjusted, and the tensioning degree of the lead 6 can be controlled; the positioning portion 32 can fix the fixing portion 1 or the traction portion 2 to the sleeve 31, thereby realizing traction and fixation of the lead 6, and having a good traction effect on the lead 6.
The drainage end 4 is used for leading out a steel strand or an optical cable in the lead 6 and comprises an anchor ear 41 for holding the sleeve 31 tightly and a drainage plate 42 fixedly arranged at the side part of the anchor ear 41; the anchor ear 41 is fixed on the sleeve 31 through a plurality of bolts, and the drainage plate 42 is inclined and is fixedly connected with the anchor ear 41; the drainage end 4 plays a role in guiding current, each wire clamp is provided with the drainage end 4, the drainage end 4 can lead out a steel strand or an optical cable in the lead 6, and current can pass through the steel strand or the optical cable, so that subsequent stringing construction is facilitated.
The clamping assembly 5 is fixedly arranged at the end part of the sleeve 31 and is used for circumferentially clamping the lead 6. Clamping unit 5 fixes the tip at sleeve 31, and clamping unit 5 can press from both sides the wire 6 circumference tightly, finishes the back at the error adjustment to wire 6, can press from both sides wire 6 tightly through clamping unit 5, makes wire 6 not the slippage, guarantees the fixed effect to wire 6. The clamping assembly 5 is a ring clamp, and when the sleeve 31 rotates, the clamping assembly 5 also rotates along with the sleeve, and the clamping assembly 5 does not contact or generate friction with the wire 6 during the rotation.
Compared with the prior art, the lead traction device provided by the invention has the advantages that firstly, the fixing part 1 is fixed on a pole or a cross arm, the traction part 2 is fixed at the end part of a lead 6, the fixing part 1 and the traction part 2 are inserted into two ends of the sleeve 31 at the same time, the sleeve 31 is rotated and the distance between the fixing part 1 and the traction part 2 or the tension degree of the lead 6 is adjusted, after the tension degree of the lead 6 is adjusted, the fixing part 1 and the traction part 2 are locked through the positioning part 32, the optical cable in the lead 6 is fed and discharged through the drainage end 4, in addition, the lead 6 can be clamped by the clamping component 5, the lead 6 is prevented from sliding or loosening, the clamping effect is ensured, and the device realizes the functions of error adjustment and lead 6 tightness in the stringing process of the lead; through 6 tensioning degrees of sleeve 31 control wire, and then realize adjusting 6 errors of wire, clamping assembly 5 presss from both sides tightly effectually, difficult not hard up, it can not adjust to 6 errors of wire to have solved the fastener, it is not good to press from both sides tight effect to 6 wires, easily cause not hard up technical problem, have the overhead line error to wire 6 or transmission line and adjust, it is effectual to press from both sides tight wire 6, prevent that 6 slippage of wire or not hard up, improve the technological effect of overhead line efficiency of construction.
The lead traction device is applied to stringing construction of a power transmission line, a lead 6 in stringing construction is dragged and fixed, errors of the lead 6 in stringing construction can be adjusted through the adjusting assembly 3, when the sleeve 31 is rotated, the sleeve 31 can be assisted through an external tool or rotated by using tools such as a pipe wrench, and further the errors of the lead 6 or the tensioning degree of the lead 6 can be adjusted. The external thread on the fixing part 1 and the external thread on the traction part 2 have opposite rotating directions, so that the internal thread in the sleeve 31 is divided into two parts, the rotating directions of the internal threads of the two parts are opposite, and in the process of rotating the sleeve 31, the fixing part 1 and the traction part 2 can simultaneously and relatively move or simultaneously and oppositely move along the axial direction of the sleeve 31, so that the distance between the fixing part 1 and the traction part 2 can be adjusted, or the error of the lead 6 mounted on a line pole or a cross arm can be adjusted. After the wire 6 is adjusted, the fixing part 1 and the traction part 2 can be fixed on the sleeve 31 through the positioning part 32, and the wire 6 is locked again through the clamping component 5; the fixed connection between the traction part 2 and the sleeve 31 can be considered as a primary fixation of the wire 6; the fixing of the clamping component 5 to the lead 6 can be regarded as secondary fixing of the lead 6, so that the double fixing effect of the lead 6 can be achieved, and the lead 6 is guaranteed not to slide or loosen.
Referring to fig. 1 to 2, the fixing portion 1 includes a retaining ring 11, a first thread section 12 and a first connecting section 13, and the first thread section 12 and the first connecting section 13 are coaxially disposed.
The retaining ring 11 is in a closed ring shape and is fixedly connected with the telegraph pole or the cross arm, the retaining ring 11 is fixedly connected on the telegraph pole or the cross arm through an external fixing tool or a fastening piece, or one end of a steel strand is adopted to penetrate through the retaining ring 11, the other end of the steel strand is bound with the telegraph pole or the cross arm, the fixing part 1 can be fixed, and the fixing effect is good and firm.
The first thread section 12 is provided with a first external thread, one end of which is fixedly connected with the end part of the retaining ring 11, and the other end of which is fixedly connected with the first connecting section 13.
The first connecting section 13 is provided with a first through hole 131 for the positioning portion 32 to pass through, one end of the first through hole is fixedly connected with the other end of the first thread section 12, the other end of the first through hole is a free end, the first through hole 131 is an oval through hole, and the first through hole 131 penetrates through the first connecting section 13, is used for the positioning portion 32 to pass through, and plays a role in fixing the fixing portion 1.
Referring to fig. 1 and 3, as an embodiment of a lead pulling device provided by the present invention, the pulling portion 2 includes a second thread section 21 and a second connection section 22.
The second thread section 21 is provided with a second external thread, one end of the second external thread is fixedly connected with the end part of the lead 6, the other end of the second external thread is fixedly connected with the second connecting section 22, the connection mode between the first thread section 12 and the lead 6 is not limited, and can be welding, riveting or anchoring connection and the like, so that the stable connection between the traction part 2 and the lead 6 is ensured.
The second connecting section 22 is provided with a second through hole 221 for the positioning part 32 to pass through, one end of the second connecting section is fixedly connected with the other end of the second threaded section 21, and the other end of the second connecting section is a free end; the second connecting section 22 and the first connecting section 13 are arranged on the same axis and opposite to each other, the second through hole 221 is an elliptical through hole, and the second through hole 221 penetrates through the second connecting section 22, is used for the penetration of the positioning portion 32, and plays a role in fixing the fixing portion 1.
The first external thread and the second external thread are opposite in turning direction, and the opposite or opposite moving directions between the fixing part 1 and the traction part 2 are ensured, so that the turning directions of the first external thread and the second external thread are opposite and are in threaded connection with the sleeve 31, the internal thread in the sleeve 31 is divided into two parts, and the turning directions of the internal threads of the two parts are opposite and are respectively in adaptive connection with the first external thread or the second external thread. In the process of rotating the sleeve 31, the fixed part 1 and the traction part 2 move relatively or reversely at the same time, so that the distance between the fixed part 1 and the traction part 2 can be adjusted, or the error of the lead 6 generated in stringing construction can be adjusted.
As a specific embodiment of the wire traction device provided by the present invention, please refer to fig. 1 and 4, two sections of internal threads are provided inside the sleeve 31, and both ends of the sleeve 31 are provided with openings; the screwing directions of the internal threads at the two ends in the sleeve 31 are opposite, the internal threads in threaded connection with the fixing part 1 can be considered as positive threads/negative threads, and the internal threads in threaded connection with the traction part 2 are negative threads/positive threads, so that the fixing part 1 and the traction part 2 can move oppositely or reversely in the rotating process of the sleeve 31;
the internal thread close to the fixing part 1 and the internal thread close to the traction part 2 have opposite rotation directions, the internal thread of the sleeve 31 is in threaded connection with the external thread of the fixing part 1 or the traction part 2, and the fixing part 1 or the traction part 2 can move in the axial direction of the sleeve 31 during the rotation of the sleeve 31, and the moving directions are opposite or opposite.
Referring to fig. 1, 4 and 7, as an embodiment of a wire drawing device provided by the present invention, the positioning portion 32 includes a through hole 321, a stud 322 and a nut 323.
The two strip-shaped through holes 321 are respectively arranged along the axial direction of the sleeve 31 and the two strip-shaped through holes are oppositely arranged; the depth of the long strip-shaped through hole 321 is equal to the thickness of the outer wall of the sleeve 31, the width of the long strip-shaped through hole 321 is larger than the outer diameter of the stud 322 and smaller than the outer diameter of the nut 323, the stud 322 is locked through the nut 323, the stud 322 cannot slip off in the long strip-shaped through hole 321, and the locking effect is guaranteed.
The plurality of studs 322 respectively penetrate through the two elongated through holes 321 and the first through hole 131/the second through hole 221, and are used for fixing the fixing part 1/the traction part 2; the stud 322 is a double-ended stud, the stud 322 passes through the two strip-shaped through holes 321 and the first through hole 131/the second through hole 221, and the two ends of the stud 322 are locked by the nut 323, so that the fixing part 1 or the traction part 2 is positioned or limited in the sleeve 31, and the fixing effect is good.
The nuts 323 are in threaded connection with two ends of the stud 322 respectively and used for fastening the fixing part 1/the traction part 2, the nuts 323 are in threaded connection with two ends of the stud 322, the fixing part 1 or the traction part 2 can be locked by screwing the nuts 323, the stud 322 cannot slide in the long strip-shaped through hole 321 after being locked, the purpose of fixing the fixing part 1 or the traction part 2 is achieved, and the fixing effect is good.
Referring to fig. 1 and 6, the clamping assembly 5 includes a housing 51, a clamping member 52, and a locking member 53.
The shell 51 is annular, and the end surface is fixedly connected with the end surface of the sleeve 31; the outer diameter of the housing 51 is the same as the outer diameter of the sleeve 31 and is coaxially arranged, the fixed connection mode between the end surface of one side of the housing 51 and the end surface of the sleeve 31 is not limited, and the connection mode can be a connection mode with a high stability coefficient such as welding and riveting, and the installation effect of the housing 51 is ensured.
The clamping pieces 52 are a plurality of and are uniformly arranged on the shell 51 in the circumferential direction, are provided with external threads, penetrate through the shell 51 and are in threaded connection with the shell 51, and are used for pushing the lead 6; by rotating the clamping member 52 in the forward direction, the clamping member 52 is moved toward the center of the housing 51, and the inner end of the clamping member 52 is brought into contact with the wire 6 and can generate a frictional force to fix the wire 6.
The locking piece 53 is arranged outside the shell 51 and is in threaded connection with the clamping piece 52 and used for locking the clamping piece 52, the locking piece 53 is sleeved on the clamping piece 52 and is in threaded connection with the clamping piece 52, the locking piece 53 can be loosened and locked, when the clamping piece 52 pushes the lead 6 to be incapable of moving, the locking piece 53 is rotated in the forward direction, the clamping piece 52 is locked on the shell 51 through the locking piece 53, and then the lead 6 can be fixed.
The locking member 53 is a hexagonal nut.
Referring to fig. 1, 6, 8 and 9, the clamping assembly 5 further includes a rotating member 54 and an ejecting member 55, wherein the rotating member 54 is a bearing member and can realize a rotational connection between the two members.
The rotating member 54 is disposed at the inner end of the clamping member 52, and the rotating member 54 can rotate at the end of the clamping member 52.
The pushing piece 55 is arc-shaped, is sleeved on the outer circumference of the rotating piece 54 and is rotatably connected with the clamping piece 52 for pushing the conducting wire 6, the arc radian of the pushing piece 55 is consistent with the arc shape of the outer edge of the conducting wire 6, and through the rotation and pushing of the clamping piece 52, the pushing piece 55 can contact with the conducting wire 6 and generate friction force to play a role in fixing the conducting wire 6. During the rotation of the clamping member 52, the clamping member 52 is rotatably connected with the ejector member 55, and the ejector member 55 is not rotatable but only translates in the axial direction of the clamping member 52, thereby ejecting the wire 6.
Referring to fig. 6, a locking protrusion is disposed on an inner end of the clamping member 52 for locking with the rotating member 54, so that the clamping member 52 cannot be disengaged from the rotating member 54, and the rotating effect is ensured. The ejector 55 is provided with a circular slot, the rotating part 54 is inserted into the circular slot and connected in an interference fit manner, the ejector 55 cannot slip off from the rotating part 54, and the rotating effect between the clamping part 52 and the ejector 55 is ensured.
Referring to fig. 1 and 6, the clamping assembly 5 further includes an anti-slip member 56, the anti-slip member 56 can increase the friction force between the pushing member 55 and the wire 6, and the anti-slip member 56 is a non-metal member and can be made of rubber or the like.
The anti-slip piece 56 is fixedly arranged on the inner side surface of the ejector piece 55, the anti-slip piece 56 comprises a plurality of anti-slip teeth, the anti-slip teeth are in contact with the lead 6, the length of the anti-slip piece 56 is long, and the contact area between the anti-slip piece 56 and the lead 6 is increased, so that the lead 6 can be well fixed. The shape of the anti-slip tooth is inverted triangle, and after the clamping piece 52 pushes the anti-slip piece 56, the anti-slip tooth can be deformed by compression, so that the contact area with the wire 6 is increased, and the fixing effect and the practical effect on the wire 6 are improved. The anti-slip teeth can not fall off, and the friction contact performance is ensured.
Referring to fig. 1, 6, 8 and 9, as a specific embodiment of a wire pulling device provided by the present invention, the clamping member 52 is T-shaped, a groove 57 is formed on an outer circumference of the housing 51, a plurality of third through holes 58 are uniformly formed on an inner circumference of the groove 57, and the third through holes 58 are used for the clamping member 52 to pass through and be in threaded connection with the housing 51. The number of the third through holes 58 is matched with the number of the clamping pieces 52 in a one-to-one correspondence mode. The clamping piece 52 is a bolt piece, the outer end of the clamping piece 52 is provided with a tip used for manually screwing, the clamping piece 52 penetrates through the third through hole 58, the inner tip is used for pushing the wire 6, the clamping piece 52 can gradually move towards the center of the shell 51 in the gradual rotating process of the clamping piece 52, when the clamping piece contacts the wire 6, friction force can be generated, the clamping piece 52 is rotated again, the friction force can be gradually increased until the clamping piece 52 can not be rotated, and finally the clamping piece 52 is locked in the groove 57 through the locking piece 53 to play a role in fixing or locking the wire 6.
As a specific embodiment of the wire pulling device provided by the present invention, referring to fig. 8 to 9, the number of the clamping members 52 is 3 to 5, the clamping members 52 may be disposed along the circumferential direction of the housing 51, the plurality of clamping members 52 are uniformly disposed, the number of the clamping members 52 is preferably 4 or 5, and the plurality of clamping members 52 mutually push the wire 6 together, so that the wire 6 can be fixed, the wire 6 does not move in the axial direction, and the fixing effect is ensured. Fig. 8 is a schematic view of the clamp 52 arranged 4 in the circumferential direction of the housing 51, and fig. 9 is a schematic view of the clamp 52 arranged 5 in the circumferential direction of the housing 51.
As an embodiment of the wire drawing device provided by the present invention, please refer to fig. 8 to 9, the radian of the inner edge of the ejector 55 is adapted to the radian of the outer edge of the wire 6, and the inner side surface of the ejector 55 is pushed by the ejector 55 to completely release the outer wall of the wire 6, so as to increase the friction force between the inner side surface and the wire 6 and improve the fixing effect of the wire 6.
The working process of the lead traction device is as follows: firstly, the retaining ring 11 of the fixing part 1 is fixed on a telegraph pole or a cross arm, the second thread section 21 of the traction part 2 is fixed at the end of the wire 6, then the first thread section 12 and the second thread section 21 are respectively inserted at two ends of the sleeve 31 and are in threaded connection, through manually rotating the sleeve 31, the fixing part 1 and the traction part 2 can move relatively or oppositely in the sleeve 31 simultaneously in the rotating process of the sleeve 31, and therefore the adjustment of the distance between the fixing part 1 and the traction part 2 or the adjustment of the stringing error of the wire 6 or the adjustment of the tensioning degree of the wire 6 can be realized. After the lead 6 is adjusted, the stud 322 passes through the elongated through hole 321 and the first through hole 131 or the second through hole 221, and the stud 322 is locked by the nut 323, so that the positions of the fixing part 1 and the traction part 2 in the sleeve 31 can be limited, and the lead 6 can be fixed. Meanwhile, the wire 6 can be clamped by the clamping assembly 5, after the clamping piece 52 passes through the shell 51, the clamping piece 52 is rotated to push the wire 6 until the wire is not moved any more, and finally the clamping piece 52 is locked by the locking piece 53.
Adjusting part 3 and 5 combined action of clamping component can adjust 6 errors of wire, adjust conveniently simple again, still can increase the tight effect of clamp to wire 6, and wire 6 can not the slippage or remove, guarantees stringing efficiency of construction, and the device need not often change, saves transmission line stringing construction cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A wire traction device, comprising:
the fixing part is used for connecting a telegraph pole or a cross arm;
the traction part is used for drawing the lead and fixedly arranged at the end head of the lead;
the adjusting assembly comprises a sleeve and a positioning part, wherein the sleeve is in threaded connection with the fixing part and the traction part respectively, and the positioning part penetrates through the sleeve and is used for positioning the fixing part or the traction part respectively; the distance between the fixed part and the traction part is adjusted by means of the rotation of the sleeve;
the drainage end is used for leading out a steel strand or an optical cable in a wire and comprises an anchor ear for tightly holding the sleeve and a drainage plate fixedly arranged on the side part of the anchor ear;
the clamping assembly is fixedly arranged at the end part of the sleeve and is used for clamping the lead circumferentially;
the clamping assembly comprises
The shell is annular, and the end face of the shell is fixedly connected with the end face of the sleeve;
the clamping pieces are uniformly arranged on the shell in the circumferential direction, are provided with external threads, penetrate through the shell and are in threaded connection with the shell, and are used for pushing the lead;
a locking member disposed outside the housing and threadedly coupled to the clamping member for locking the clamping member
The fixing part comprises
The retaining ring is in a closed ring shape and is fixedly connected with the telegraph pole or the cross arm;
the first thread section is provided with a first external thread, and one end of the first thread section is fixedly connected with the end part of the retaining ring;
the first connecting section is provided with a first through hole for the positioning part to pass through, and one end of the first connecting section is fixedly connected with the other end of the first threaded section;
the traction part comprises
The second thread section is provided with a second external thread, and one end of the second thread section is fixedly connected with the end part of the lead;
the second connecting section is provided with a second through hole for the positioning part to pass through, and one end of the second connecting section is fixedly connected with the other end of the second threaded section; the first external thread and the second external thread are opposite in rotation direction;
the positioning part comprises
The two strip-shaped through holes are respectively arranged along the axial direction of the sleeve and are oppositely arranged;
a plurality of studs respectively penetrate through the two strip-shaped through holes and the first through hole/the second through hole and are used for fixing the fixing part/the traction part;
and a plurality of nuts are respectively in threaded connection with two ends of the stud and used for fastening the fixing part/the traction part.
2. A wire pulling apparatus as defined in claim 1, wherein: two sections of internal threads are arranged inside the sleeve, and openings are formed in the two ends of the sleeve;
the internal thread close to the fixing part and the internal thread close to the traction part are opposite in rotation direction.
3. A wire pulling apparatus as defined in claim 1, wherein: the clamping assembly further comprises
The rotating piece is sleeved at the inner end of the clamping piece;
and the pushing piece is arc-shaped, sleeved on the rotating piece, rotatably connected with the clamping piece and used for pushing the lead.
4. A wire pulling apparatus as defined in claim 3, wherein: the clamping assembly further comprises
And the anti-skidding piece is fixedly arranged on the inner side surface of the ejecting piece and comprises a plurality of anti-skidding teeth, and the anti-skidding teeth are in contact with the wire.
5. A wire pulling apparatus as defined in claim 1, wherein: the clamping piece is T-shaped, a groove is formed in the outer circumference of the shell, a plurality of third through holes are uniformly formed in the inner circumference of the groove, and the third through holes are used for the clamping piece to penetrate through and are in threaded connection with the shell.
6. A wire pulling apparatus as defined in claim 1, wherein: the number of the clamping pieces is 3-5.
7. A wire pulling apparatus as defined in claim 3, wherein: the radian of the inner edge of the ejector piece is matched with the radian of the outer edge of the lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445768.2A CN110233457B (en) | 2019-05-27 | 2019-05-27 | Wire traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445768.2A CN110233457B (en) | 2019-05-27 | 2019-05-27 | Wire traction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110233457A CN110233457A (en) | 2019-09-13 |
| CN110233457B true CN110233457B (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910445768.2A Active CN110233457B (en) | 2019-05-27 | 2019-05-27 | Wire traction device |
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| Country | Link |
|---|---|
| CN (1) | CN110233457B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343967B (en) * | 2020-09-23 | 2022-04-01 | 安徽华希电力科技有限公司 | Wedge-shaped wire clamp pretensioner for power transmission and distribution tower stay wire |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201234092Y (en) * | 2008-07-18 | 2009-05-06 | 谢文侠 | Cable fastening clip for carbon fiber composite core aluminum stranded wire traction |
| CN201733046U (en) * | 2010-07-23 | 2011-02-02 | 徐金富 | Carbon fiber composite core lead fixture |
| CN102110968A (en) * | 2010-12-24 | 2011-06-29 | 绍兴电力局 | Clearance type strain clamp for conducting wires |
| CN103618259B (en) * | 2013-11-30 | 2016-05-11 | 国网河南省电力公司周口供电公司 | The special drafting tool of carbon-fibre wire |
| CN204459469U (en) * | 2015-02-12 | 2015-07-08 | 黄斌 | A kind of sleeve pipe clamping and fixing device |
| CN205960530U (en) * | 2016-08-30 | 2017-02-15 | 中国电力科学研究院 | Wire draw gear for tension stringing |
| CN206976982U (en) * | 2017-07-19 | 2018-02-06 | 武汉凯源电力工程有限公司 | It is a kind of to clamp stable strain clamp |
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2019
- 2019-05-27 CN CN201910445768.2A patent/CN110233457B/en active Active
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| Publication number | Publication date |
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| CN110233457A (en) | 2019-09-13 |
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