CN117638735A - Power cable traction head and use method thereof - Google Patents
Power cable traction head and use method thereof Download PDFInfo
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- CN117638735A CN117638735A CN202410087805.8A CN202410087805A CN117638735A CN 117638735 A CN117638735 A CN 117638735A CN 202410087805 A CN202410087805 A CN 202410087805A CN 117638735 A CN117638735 A CN 117638735A
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- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- 238000012552 review Methods 0.000 description 1
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Abstract
The invention relates to the technical field of cables, in particular to a power cable traction head and a use method thereof, wherein the power cable traction head comprises a bearing mechanism, a sleeve, an inner thread and a hook, wherein the inner thread is arranged on the inner wall of the sleeve, the hook is fixedly connected with one end of the sleeve, the inner wall of the hook is fixedly connected with a guide block, a sliding groove is arranged on the inner side of the hook, a liquid storage cavity is arranged on the inner wall of the hook, and a triggering part is arranged in the liquid storage cavity; the traction force directly acts on the conductor of the cable, the advantage that the metal conductor can bear larger traction force is utilized, compared with the mode that the transmission traction force acts on the cable protective sleeve, the stability in the traction process is greatly improved, the function of limiting and fastening multiple groups is matched, and the cable can be ensured not to be loosened in the traction process.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a power cable traction head and a using method thereof.
Background
Finished large section large length cables are delivered wound on cable drums, which are heavy, sometimes exceeding 10 tons/drum. When the cable is laid, a steel wire sleeve is generally sleeved on the outer sheath of the cable high polymer material to pull the penetrating pipe, or the penetrating pipe is pulled to be placed in a cable trench, or the penetrating pipe is pulled to be placed on a cable bridge. The traction force acts on the cable high polymer material outer sheath by using the method of steel wire sleeve traction, and the outer sheath is plastic, so that the traction force can be limited, and particularly when the environment temperature is too high during cable laying, the outer sheath material becomes soft, the mechanical strength capable of resisting the traction force is lost, and the outer sheath can be pulled off during traction, so that the cable is damaged and the traction failure accident is caused.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems in the prior art that the outer sheath material is softened, the mechanical strength against traction force is lost, and the outer sheath is pulled off during traction, resulting in damage to the cable.
It is therefore an object of the present invention to provide a power cable traction head.
In order to solve the technical problems, the invention provides the following technical scheme: a traction head of a power cable, which comprises,
the bearing mechanism comprises a jacket, an internal thread arranged on the inner wall of the jacket and a hook fixedly connected with one end of the jacket, wherein the inner wall of the hook is fixedly connected with a guide block;
the inner side of the hook is provided with a sliding groove, the inside of the hook is provided with a liquid storage cavity, and the inside of the liquid storage cavity is provided with a triggering part.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: the triggering component comprises an arc-shaped block which is connected to the outer side of the guide block in a sliding way, a connecting block which is fixedly connected to the bottom end of the arc-shaped block, and a soft rod which is fixedly connected to one end of the connecting block;
the other end of the soft rod is fixedly connected with a first piston, the first piston slides in the liquid storage cavity, the soft rod is located in the liquid storage cavity, a reset piece is arranged in the liquid storage cavity, and a transmission piece is arranged in the liquid storage cavity.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: the reset piece comprises a connecting block fixedly connected inside the liquid storage cavity and a reset spring fixedly connected at one end of the connecting block.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: the transmission part comprises a second piston which is connected in the outer sleeve in a sliding way, a tensioning rod which is fixedly connected with one end of the second piston, and an inclined plane which is arranged at one end of the tensioning rod;
and hydraulic oil is filled between the first piston and the second piston of the liquid storage cavity.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: and also comprises
The fixing mechanism comprises a fixing sleeve arranged at one end of the outer sleeve, an external thread arranged at the outer side of the fixing sleeve, and a mounting cavity arranged at one end of the fixing sleeve, wherein a groove is formed in the bottom end of the mounting cavity.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: the fixing mechanism further comprises a mounting hole formed in the fixing sleeve, a fastening part arranged in the mounting hole and an expansion nail arranged on one side of the fixing sleeve;
the mounting hole is arranged in a conical shape, the small conical end of the mounting hole is far away from the direction of the mounting cavity, and the large conical end of the mounting hole is close to the direction of the mounting cavity.
As a preferable embodiment of the power cable pulling head of the present invention, wherein: the fastening component comprises two groups of clamping plates inserted into the mounting holes, a convex ring fixedly connected to the inner sides of the clamping plates and a connecting plate fixedly connected to the outer sides of the clamping plates;
the position of the connecting plate is designed in an up-down dislocation mode according to the connection condition of the two groups of connecting plates, the outer wall of the clamping plate is designed in a conical mode, and the cone inclination of the clamping plate is consistent with the inclination of the mounting hole.
The invention also provides a use method.
In order to solve the technical problems, the invention also provides the following technical scheme: a method of use comprising the power cable traction head, and operating steps comprising,
inserting a conductor into the mounting hole;
embedding the clamping plate into a gap between a conductor and the mounting hole by a tool;
inserting the expansion nail into one end of the conductor by a tool;
and connecting the outer sleeve with the fixed sleeve through the external thread and the internal thread.
As a preferred embodiment of the method of use of the invention, wherein: the cable is pulled by inserting the device into the arc-shaped block and pulling the device towards the direction of the hook.
As a preferred embodiment of the method of use of the invention, wherein: the cone shape of the clamping plate is matched with the cone shape of the mounting hole, so that traction damping of the cable is increased.
The invention has the beneficial effects that: the traction force directly acts on the conductor of the cable, the advantage that the metal conductor can bear larger traction force is utilized, compared with the mode that the transmission traction force acts on the cable protective sleeve, the stability in the traction process is greatly improved, the function of limiting and fastening multiple groups is matched, and the cable can be ensured not to be loosened in the traction process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is a schematic overall side view of the present invention.
Fig. 3 is an internal schematic view of the present invention.
Fig. 4 is a schematic view of a transmission member according to the present invention.
Fig. 5 is a schematic view of the fixing mechanism of the present invention.
Fig. 6 is a schematic partial cross-sectional view of the present invention.
Fig. 7 is a schematic view of a fastening member of the present invention.
Fig. 8 is a schematic side view of a partial component of the present invention.
Fig. 9 is an enlarged schematic view of the portion a of the present invention.
In the figure: 100. a carrying mechanism; 101. a jacket; 102. an internal thread; 103. a hook; 104. a guide block; 105. a chute; 106. a liquid storage cavity; 107. a trigger member; 107a, arc blocks; 107b, a joint block; 107c, soft bars; 107d, a first piston; 107e, a reset member; 107f, a transmission member; 107e-1, connection block; 107e-2, a return spring; 107f-1, a second piston; 107f-2, tensioning lever; 107f-3, inclined plane; 200. a fixing mechanism; 201. a fixed sleeve; 202. an external thread; 203. a mounting cavity; 204. a groove; 205. a mounting hole; 206. a fastening member; 207. an expansion nail; 206a, clamping plates; 206b, a convex ring; 206c, connecting plates.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1-3 and 5-9, a first embodiment of the present invention provides a power cable traction head, including,
the bearing mechanism 100 comprises a jacket 101, an internal thread 102 arranged on the inner wall of the jacket 101, and a hook 103 fixedly connected to one end of the jacket 101, wherein a guide block 104 is fixedly connected to the inner wall of the hook 103;
wherein, the inside of couple 103 has seted up spout 105, and stock solution chamber 106 has been seted up to the inside of couple 103, and the inside of stock solution chamber 106 is provided with trigger part 107.
Specifically, the fixing mechanism 200 further comprises a fixing sleeve 201 arranged at one end of the outer sleeve 101, an external thread 202 arranged on the outer side of the fixing sleeve 201, and a mounting cavity 203 arranged at one end of the fixing sleeve 201, wherein a groove 204 is formed in the bottom end of the mounting cavity 203.
Further, the fixing mechanism 200 further includes a mounting hole 205 opened inside the fixing sleeve 201, a fastening member 206 provided inside the mounting hole 205, and an expansion nail 207 provided at one side of the fixing sleeve 201;
wherein, the mounting hole 205 is tapered, and the tapered small end of the mounting hole 205 is far away from the mounting cavity 203, and the tapered large end of the mounting hole 205 is near to the mounting cavity 203.
Preferably, the fastening part 206 includes two sets of clamping plates 206a inserted into the mounting holes 205, a convex ring 206b fixedly connected to the inner side of the clamping plates 206a, and a connecting plate 206c fixedly connected to the outer side of the clamping plates 206 a;
the connection plates 206c are designed to be vertically staggered according to the connection condition of the two groups of connection plates 206c, the outer wall of the clamping plate 206a is designed to be conical, and the cone inclination of the clamping plate 206a is consistent with the inclination of the mounting hole 205.
When in use, the protective sleeve W on the outer side of the cable is pulled out to expose the conductor M in the cable, the conductor M is sequentially inserted into the mounting hole 205 from one side of the small end of the mounting hole 205, and the end surface of the conductor M of the cable is leveled with the large end of the mounting hole 205;
then inserting the clamping plates 206a into the large ends of the mounting holes 205, and completely inserting the clamping plates 206a into the gaps between the mounting holes 205 and the conductors M by a tool, wherein when the clamping plates 206a are mounted, the clamping plates 206a need to be mounted in sequence according to the positions of the connecting plates 206c, so that a plurality of groups of clamping plates 206a can be inserted into the mounting holes 205, and when the clamping plates 206a are mounted, the central holes of the connecting plates 206c outside each group of clamping plates 206a need to be aligned, so that the subsequent mounting is ensured;
after the clamping plate 206a is installed, an expansion nail 207 is driven into the middle of the conductor M from the center of the end face of the conductor M by a tool, so that the end of the conductor M expands and spreads into a horn shape;
finally, the fixing sleeve 201 is mounted inside the outer jacket 101 by the external threads 202 and the internal threads 102, thereby completing the assembly. By pulling the device in the direction of the hook 103, the pulling work on the cable can be completed.
In summary, after the installation is completed, since the inner wall of the clamping plate 206a is provided with the convex ring 206b, and the hardness of the convex ring 206b is higher than that of the conductor M, the convex ring 206b can be embedded into the conductor M, so as to increase the friction force and improve the fixing effect on the conductor M.
An expansion nail 207 is driven into the middle of the metal conductor M to expand the end of the conductor M into a horn shape, so that the slipping force of the cable conductor M when the cable conductor M is subjected to tensile force is effectively resisted, and the normal operation of cable traction is ensured.
When the device is pulled towards the direction of the hook 103, the fixing sleeve 201 is driven to move towards the direction of the fixing sleeve, the small end direction of the mounting hole 205 is driven to continuously squeeze the large end direction of the clamping plate 206a, and the clamping force applied to the conductor M by the clamping plate 206a is further driven to be continuously improved, so that the situation that loosening occurs in the pulling process is avoided.
Example 2
Referring to fig. 1 to 5, in a second embodiment of the present invention, unlike the previous embodiment, the trigger part 107 includes an arc block 107a slidably connected to the outer side of the guide block 104, a connection block 107b fixedly connected to the bottom end of the arc block 107a, and a soft rod 107c fixedly connected to one end of the connection block 107 b;
the other end of the soft rod 107c is fixedly connected with a first piston 107d, the first piston 107d slides in the liquid storage cavity 106, the soft rod 107c is located in the liquid storage cavity 106, a reset piece 107e is arranged in the liquid storage cavity 106, and a transmission piece 107f is arranged in the liquid storage cavity 106.
Specifically, the restoring member 107e includes a connecting block 107e-1 fixedly connected to the inside of the liquid storage chamber 106, and a restoring spring 107e-2 fixedly connected to one end of the connecting block 107 e-1.
Further, the transmission member 107f includes a second piston 107f-1 slidably coupled to the inside of the casing 101, a tensioning rod 107f-2 fixedly coupled to one end of the second piston 107f-1, and a slant surface 107f-3 provided at one end of the tensioning rod 107 f-2;
wherein, hydraulic oil is filled between the first piston 107d and the second piston 107f-1 of the liquid storage chamber 106.
After the assembly is completed, the connecting part of the traction device is inserted into the inner side of the arc-shaped block 107a, and then the traction device is started, so that the arc-shaped block 107a is driven to slide firstly, meanwhile, the connecting block 107b is driven to push the soft rod 107c to slide in the liquid storage cavity 106, the first piston 107d at one end of the soft rod 107c slides, the reset spring 107e-2 is extruded, the reset spring 107e-2 is contracted, meanwhile, hydraulic oil in the liquid storage cavity 106 is also driven, the hydraulic oil drives the second piston 107f-1 to slide, and the second piston 107f-1 which slides drives the tensioning rod 107f-2 to slide towards the central hole direction of the connecting plate 206c;
because the positions of the tensioning rod 107f-2 and the central hole are deviated, under the design of matching with the inclined plane 107f-3 at one end of the tensioning rod 107f-2, the tensioning rod 107f-2 can be inserted into the central hole of the connecting plate 206c and can drive the connecting plate 206c to slightly skew to the outer side of the fixed sleeve 201, the whole diameter of the large end of the clamping plate 206a can be increased through the skew to the outer side direction of the large end of the clamping plate 206a, the fixing effect of the clamping plate 206a on the conductor M can be further improved through the extrusion of the clamping plate 206a by matching with the mounting hole 205 in the fixed sleeve 201, and the small end of the clamping plate 206a is driven to reversely skew due to the skew to the outer side direction of the large end of the clamping plate 206a, so that the conductor M is extruded and fixed again.
In sum, through the direct effect of traction force on the conductor M of cable, utilize the advantage that the metal conductor can bear bigger traction force, compare the mode that transmission traction force acted on cable lag W, great improvement the stability in the traction process to cooperate the spacing function of fastening of multiunit, can ensure to pull the in-process to the cable, can not take place to loosen.
Example 3
Referring to fig. 1 to 9, a third embodiment of the present invention is different from the previous embodiment in that the embodiment provides a use method, including a power cable traction head, and operation steps, including,
inserting the conductor M into the mounting hole 205;
inserting the clamping plate 206a into the gap between the conductor M and the mounting hole 205 by a tool;
inserting the expansion pin 207 into one end of the conductor M by a tool;
the outer sleeve 101 is connected to the fixing sleeve 201 by the male screw 202 and the female screw 102.
Specifically, the cable can be pulled by inserting the device into the arc-shaped block 107a and pulling the device in the direction of the hook 103.
Further, the taper of the clamping plate 206a is matched with the taper of the mounting hole 205, so that traction damping of the cable is increased.
In a comprehensive way, the traction force directly acts on the conductor M of the cable, so that the situation of loosening in the traction process can be effectively avoided, and the repeated utilization of the traction head can be realized.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause herein is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended text.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, and it should be covered in the present invention.
Claims (8)
1. A power cable traction head, characterized in that: comprising the steps of (a) a step of,
the bearing mechanism (100) comprises a jacket (101), an internal thread (102) arranged on the inner wall of the jacket (101) and a hook (103) fixedly connected with one end of the jacket (101), wherein a guide block (104) is fixedly connected with the inner wall of the hook (103);
the inner side of the hook (103) is provided with a sliding groove (105), the inside of the hook (103) is provided with a liquid storage cavity (106), and the inside of the liquid storage cavity (106) is provided with a triggering part (107);
the fixing mechanism (200) comprises a fixing sleeve (201) arranged at one end of the outer sleeve (101), an external thread (202) arranged at the outer side of the fixing sleeve (201), and a mounting cavity (203) arranged at one end of the fixing sleeve (201), wherein a groove (204) is formed in the bottom end of the mounting cavity (203);
the fixing mechanism (200) further comprises a mounting hole (205) formed in the fixing sleeve (201), a fastening component (206) arranged in the mounting hole (205), and an expansion nail (207) arranged on one side of the fixing sleeve (201);
the mounting hole (205) is arranged in a conical shape, the small conical end of the mounting hole (205) is far away from the mounting cavity (203), and the large conical end of the mounting hole (205) is close to the mounting cavity (203).
2. The power cable traction head as set forth in claim 1, wherein: the triggering part (107) comprises an arc-shaped block (107 a) which is connected to the outer side of the guide block (104) in a sliding manner, a connecting block (107 b) which is fixedly connected to the bottom end of the arc-shaped block (107 a), and a soft rod (107 c) which is fixedly connected to one end of the connecting block (107 b);
the other end of the soft rod (107 c) is fixedly connected with a first piston (107 d), the first piston (107 d) slides in the liquid storage cavity (106), the soft rod (107 c) is located in the liquid storage cavity (106), a reset piece (107 e) is arranged in the liquid storage cavity (106), and a transmission piece (107 f) is arranged in the liquid storage cavity (106).
3. The power cable traction head as set forth in claim 2 wherein: the reset piece (107 e) comprises a connecting block (107 e-1) fixedly connected to the inside of the liquid storage cavity (106), and a reset spring (107 e-2) fixedly connected to one end of the connecting block (107 e-1).
4. A power cable traction head according to claim 2 or 3, characterized in that: the transmission part (107 f) comprises a second piston (107 f-1) which is connected inside the outer sleeve (101) in a sliding way, a tensioning rod (107 f-2) which is fixedly connected with one end of the second piston (107 f-1), and an inclined plane (107 f-3) which is arranged at one end of the tensioning rod (107 f-2);
wherein hydraulic oil is filled between the first piston (107 d) and the second piston (107 f-1) of the liquid storage chamber (106).
5. The power cable traction head as set forth in claim 4, wherein: the fastening component (206) comprises two groups of clamping plates (206 a) inserted into the mounting holes (205), a convex ring (206 b) fixedly connected to the inner side of the clamping plates (206 a), and a connecting plate (206 c) fixedly connected to the outer side of the clamping plates (206 a);
the position of the connecting plate (206 c) is designed in an up-down dislocation mode according to the connection condition of the two groups of connecting plates (206 c), the outer wall of the clamping plate (206 a) is in a conical design, and the cone inclination of the clamping plate (206 a) is consistent with the inclination of the mounting hole (205).
6. A method of use, characterized by: comprising the power cable traction head of claim 5, and an operating step comprising,
inserting a conductor (M) into the mounting hole (205);
embedding the clamping plate (206 a) into a gap between a conductor (M) and the mounting hole (205) by a tool;
inserting the expansion pin (207) into one end of a conductor (M) by means of a tool;
the outer sleeve (101) is connected with the fixing sleeve (201) through the external thread (202) and the internal thread (102).
7. The method of use according to claim 6, wherein: the cable can be pulled by inserting the device into the arc-shaped block (107 a) and pulling the device towards the direction of the hook (103).
8. The method of use according to claim 7, wherein: the cone shape of the clamping plate (206 a) is matched with the cone shape of the mounting hole (205), so that traction damping of the cable is increased.
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| CN202410087805.8A CN117638735B (en) | 2024-01-22 | 2024-01-22 | Power cable traction head and use method thereof |
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| CN202410087805.8A CN117638735B (en) | 2024-01-22 | 2024-01-22 | Power cable traction head and use method thereof |
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