Tensioning device and cable laying system

Abstract

The present invention belongs to the technical field of electric power construction equipment, and discloses a wire tensioning device and a cable laying system. The wire tensioning device includes a wire pulling mechanism, a chain, a guide mechanism, and a wire clamping mechanism. The wire pulling mechanism can be detachably positioned on a utility pole and is configured to pull a chain. The guide mechanism includes a locking assembly and a guide wheel assembly, the locking assembly is arranged on a support rod, the guide wheel assembly is connected to the locking assembly, the chain extends and passes around the guide wheel assembly, the support rod is fixed to the utility pole and spaced apart from the wire tensioning mechanism, and the cable is laid on the utility pole. The wire clamping mechanism is connected to the chain and can be detachably connected to the cable. The wire tensioning device can pull and lock the cable without manual climbing work, so as to improve the degree of automation and safety of the cable tensioning operation.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction equipment, and in particular to a wire tightening device and a cable erection system. Background Art

[0002] With the rapid development of the power industry and the continuous expansion of power grid construction, the safety and stability requirements of transmission cables, as a key component of power transmission, are becoming increasingly stringent. Traditional transmission cable tightening construction mostly uses manual or semi-automatic methods.

[0003] The above-mentioned manual tightening method uses a large number of tools, has a cumbersome operation process, and involves a large number of insulation shielding measures, which is time-consuming and labor-intensive, and requires a lot of physical strength from the operators. This not only increases labor costs, but may also lead to human errors in the tightening process, affecting the quality of the tightening. The above-mentioned semi-automatic tightening method uses a robotic arm to tighten the wires. Only a single vehicle and two live workers are required to operate on the vehicle bed to complete the tightening-related work, reducing the use of tools and shielding areas, simplifying the operation process, ensuring operational safety, improving operational efficiency, and reducing labor intensity. However, although the above-mentioned semi-automatic tightening method solves the limitations of manual wire pulling, since the tightening device cannot accurately stop tightening the wire in time according to the construction process during the tightening process, the wire is prone to being too tight or too loose, and repeated adjustments are required, which wastes energy and reduces construction efficiency.

[0004] Therefore, there is an urgent need for a cable tightening device and a cable installation system to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, an object is to provide a cable tightening device that can pull and tighten cables without manual high-altitude work, thereby improving the degree of automation and safety of cable tightening operations.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Wire tensioning device, including:

[0008] a wire pulling mechanism and a chain, wherein the wire pulling mechanism is removably positioned on the utility pole and is configured to pull the chain;

[0009] A guide mechanism, the guide mechanism comprising a lock assembly and a guide wheel assembly, the lock assembly being disposed on a support rod, the guide wheel assembly being connected to the lock assembly, the chain extending and passing around the guide wheel assembly, the support rod being fixedly connected to the utility pole and spaced apart from the wire pulling mechanism, and the cable being mounted on the utility pole;

[0010] A wire clamping mechanism is connected to the chain and is detachably connected to the cable.

[0011] As a preferred solution of the tensioning device provided by the present invention, the locking assembly includes two fasteners that are fastened together to form an installation inner hole, the support rod passes through and is fixed to the installation inner hole, and the two fasteners are respectively connected to the guide wheel assembly.

[0012] As a preferred solution of the tensioning device provided by the present invention, the locking assembly also includes a locking wedge, and two clamping blocks are arranged on the circumferential sides of the locking wedge. In the installation inner hole, clamping grooves are respectively opened on the sides opposite to each other of the two fasteners, and the two clamping blocks are respectively clamped in the two clamping grooves.

[0013] As a preferred solution of the tightening device provided by the present invention, the fastener is provided with a first serrated portion and a second serrated portion, the first serrated portion of one fastener is meshedly connected to the first serrated portion of another fastener; the second serrated portion of one fastener is meshedly connected to the second serrated portion of another fastener.

[0014] As a preferred solution of the tensioning device provided by the present invention, the two fasteners respectively have through holes on the sides opposite to each other in the extension direction of the cable; the support rod is an angle steel, a part of the support rod is inserted into the through hole, and the other part is inserted into the installation inner hole.

[0015] As a preferred solution of the tensioning device provided by the present invention, the guide wheel assembly includes a connecting seat and a guide wheel body, the connecting seat is connected to the locking assembly, the guide wheel body is rotatably arranged on the connecting seat, and the chain abuts against and passes around the guide wheel body.

[0016] As a preferred solution of the tensioning device provided by the present invention, the connecting seat includes a first connecting part and a second connecting part, the first connecting part is swingably connected to the locking assembly, the swing axis of the first connecting part is perpendicular to the extension direction of the cable, the guide wheel body is rotatably arranged on the second connecting part, the second connecting part is swingably connected to the first connecting part, and the swing axis of the second connecting part is perpendicular to the swing axis of the first connecting part.

[0017] As a preferred solution of the wire tensioning device provided by the present invention, the wire pulling mechanism includes a base, a winch and a wheel, the winch is arranged on the base, the base is provided with a clamp assembly, the clamp assembly is detachably fastened to the electric pole, the winch is connected to the chain, and the wheel is arranged at the bottom of the base.

[0018] As a preferred solution of the wire tensioning device provided by the present invention, the wire pulling mechanism also includes a controller, which is arranged on the base, and the winch is communicatively connected to the controller. The controller can control the start and stop of the winch, and can also control the pulling and release of the chain by the winch.

[0019] According to another aspect of the present invention, an object is to provide a cable installation system, which includes a utility pole, a support rod, and a cable tensioning device as described in any one of the above solutions.

[0020] Beneficial effects of the present invention:

[0021] The wire tensioning device provided by the present invention includes a wire pulling mechanism, a chain, a guide mechanism, and a wire clamping mechanism. The wire pulling mechanism is removably positioned on a utility pole and configured to pull the chain. The wire clamping mechanism is connected to the chain and removably connected to the cable. In other words, the chain can be connected to the cable via the wire clamping mechanism, and the cable can be pulled via the wire pulling mechanism and the chain. The guide mechanism includes a locking assembly and a guide wheel assembly. The locking assembly is disposed on a support rod. The guide wheel assembly is connected to the locking assembly. The chain extends and passes around the guide wheel assembly. The support rod is fixed to the utility pole and spaced apart from the wire tensioning mechanism. The cable is mounted on the utility pole. In other words, the locking assembly enables the guide wheel assembly to be assembled on the support rod. The guide wheel assembly guides the chain to improve the smoothness of the chain during the pulling process. The wire tensioning device can pull and lock the cable without the need for manual work at height, thereby improving the automation and safety of the cable tensioning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural diagram of a cable installation system provided by an embodiment of the present invention;

[0023] Figure 2 is a partial structural diagram of a cable installation system provided by an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the structure marked as A;

[0025] Figure 4 1 is a schematic structural diagram of a wire tightening device provided by an embodiment of the present invention being installed on a support rod;

[0026] Figure 5 Schematic diagram of the structure of the guide mechanism and the wire clamping mechanism provided by an embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of an exploded view of the lock assembly provided by an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Cables;

[0030] 10. Electric pole; 20. Support rod;

[0031] 100, cable pulling mechanism; 110, base; 111, clamp assembly; 1111, vertical plate; 1112, connecting rod; 1113, clamp body; 120, winch; 130, controller;

[0032] 200, chain;

[0033] 300, guide mechanism; 310, lock assembly; 311, mounting inner hole; 312, fastener; 3121, slot; 3122, first serrated portion; 3123, second serrated portion; 3124, through hole; 313, lock wedge; 3131, snap-fit ​​block; 320, guide wheel assembly; 321, connecting seat; 3211, first connecting portion; 3212, second connecting portion; 322, guide wheel body;

[0034] 400. Wire clamping mechanism. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0036] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0039] Figure 1 A schematic structural diagram of a cable installation system according to an embodiment of the present invention is shown; Figure 2 FIG2 is a schematic diagram showing a portion of the structure of the cable installation system provided by an embodiment of the present invention. Figure 1 and Figure 2 This embodiment provides a cable tensioning device and cable installation system. The cable installation system includes a utility pole 10, a support rod 20, and the cable tensioning device provided in this embodiment. Two support rods 20 are provided, parallel to each other and spaced apart. They are fixedly attached to radially opposite sides of the utility pole 10 and located at the top of the pole 10. A cable 1 is installed on the utility pole 10 and above the support rods 20 via insulators.

[0040] Continue to refer to Figure 1 and Figure 2 The wire tensioning device includes a wire pulling mechanism 100, a chain 200, a guide mechanism 300, and a wire clamping mechanism 400. The wire pulling mechanism 100 is detachably positioned on the bottom circumference of the utility pole 10, and is spaced apart from the support rod 20. The wire pulling mechanism 100 is configured to pull the chain 200. The wire clamping mechanism 400 is connected to the chain 200 and is detachably connected to the cable 1. There are two chains 200 and two wire clamping mechanisms 400, and both chains 200 are connected to the wire pulling mechanism 100. The two wire clamping mechanisms 400 are spaced apart and clamped on the cable 1 along the length direction. The chain 200 can be connected to the cable 1 through the wire clamping mechanism 400, and the wire pulling mechanism 100 can pull and lock the cable 1 through the chain 200.

[0041] Specifically, the guide mechanism 300 is disposed on the support rod 20, between the two clamping mechanisms 400, and is used to guide the chain 200. The guide mechanism 300 includes a locking assembly 310 and two guide wheel assemblies 320. The locking assembly 310 is disposed on the support rod 20, and the two guide wheel assemblies 320 are respectively connected to the ends of the locking assembly 310. After the chain 200 extends and passes around the guide wheel assemblies 320, it is clamped to the cable 1 by the clamping mechanism 400. The locking assembly 310 enables the guide wheel assembly 320 to be assembled on the support rod 20, and the guide wheel assembly 320 can guide the chain 200 to improve the smoothness of the chain 200 during the pulling process.

[0042] Figure 3 Show Figure 2 The enlarged view of the structure marked as A in the figure, refer to Figure 2 and Figure 3 , the wire pulling mechanism 100 includes a base 110, a winch 120 and a wheel. The winch 120 is arranged on the base 110 and is connected to the chain 200 for winding or releasing the chain 200. It should be noted that the winch 120 is provided with an overload protection mechanism to prevent the cable 1 from being damaged due to excessive tension. The wheel is provided at the bottom of the base 110 to facilitate the transfer of the wire pulling mechanism 100. The base 110 is provided with a clamping hoop assembly 111, which is detachably fastened to the electric pole 10. Through the clamping hoop assembly 111, the wire pulling mechanism 100 can be reliably fixed at the bottom position of the electric pole 10, ensuring the stable progress of the wire pulling process.

[0043] Specifically, the clamp assembly 111 includes a vertical plate 1111, connecting rods 1112, and a clamp body 1113. The vertical plate 1111 is fixedly connected to one side of the bearing surface of the base 110 and is spaced apart from the hoist 120. The clamp body 1113 is connected to the side of the vertical plate 1111 facing away from the hoist 120 via two connecting rods 1112. The utility pole 10 can be clamped between the clamp body 1113 and the vertical plate 1111.

[0044] Preferably, the clamp body 1113 is provided with an arcuate groove on the side facing the utility pole 10, and a portion of the side of the utility pole 10 can fit into the bottom of the arcuate groove. This arrangement can increase the contact area between the clamp body 1113 and the side of the utility pole 10, thereby improving the assembly stability between the clamp assembly 111 and the utility pole 10.

[0045] More specifically, the bottom thickness of the vertical plate 1111 gradually increases as it approaches the bearing surface of the base 110. This arrangement increases the contact area between the vertical plate 1111 and the bearing surface of the base 110, thereby enhancing the structural strength of the vertical plate 1111.

[0046] More specifically, the wire pulling mechanism 100 further includes a controller 130, which is disposed on the base 110. The hoist 120 is communicatively connected to the controller 130. The controller 130 can control the start and stop of the hoist 120, and can also control the hoist 120 to pull and release the chain 200. The controller 130 can specifically be a PLC control device in the prior art, which is provided with a start button, a stop button, a forward button, and a reverse button.

[0047] Figure 4 A schematic diagram showing the structure of the tightening device provided by an embodiment of the present invention installed on a support rod is shown. Figure 5 A schematic structural diagram of a guide mechanism and a wire clamping mechanism provided in an embodiment of the present invention is shown. Figure 6 Schematic diagram of the decomposition of the lock assembly provided by the embodiment of the present invention is shown. Figure 4-Figure 6 The locking assembly 310 includes two fasteners 312 that are fastened together to form an installation inner hole 311. The support rod 20 passes through and is fixed to the installation inner hole 311. The ends of the two fasteners 312 that are away from each other are respectively connected to the guide wheel assembly 320.

[0048] Specifically, the fastener 312 is provided with a first serration 3122 and a second serration 3123 arranged in a spaced relationship. The first serration 3122 of one fastener 312 is meshedly connected to the first serration 3122 of another fastener 312; and the second serration 3123 of one fastener 312 is meshedly connected to the second serration 3123 of another fastener 312. This arrangement enables the guide mechanism to be securely fixed to the support rod 20 via the two fasteners 312.

[0049] More specifically, refer to Figure 6 The locking assembly 310 further includes a locking wedge 313. The locking wedge 313 is cylindrical in shape and has two radially opposed snap-in blocks 3131 disposed on its circumference. In the mounting inner hole 311, the two fasteners 312 are provided with snap-in slots 3121 on opposite sides thereof. The two snap-in blocks 3131 are snap-into the two snap-in slots 3121, respectively. This arrangement further enhances the connection reliability of the two fasteners 312, preventing displacement and misalignment of the two fasteners 312, based on the meshing connection.

[0050] More specifically, the two fasteners 312 are provided with through holes 3124 on opposite sides of the cable 1 in the extending direction, and the through holes 3124 are connected to the mounting inner hole 311. The support rod 20 is an angle steel, and a part of the support rod 20 is inserted into the through hole 3124, and the other part is inserted into the mounting inner hole 311. Figure 4 Through the above arrangement, the inner wall of the through hole 3124 is used to limit and clamp the support rod 20, further ensuring the installation stability of the fastener 312 on the support rod 20.

[0051] Continue to refer to Figure 4 and Figure 5 The guide wheel assembly 320 includes a connecting seat 321 and a guide wheel body 322. The connecting seat 321 is connected to the fastener 312 and extends in a direction away from the fastener 312. The guide wheel body 322 is rotatably mounted on the connecting seat 321. The chain 200 abuts against and passes around the guide wheel body 322 to be guided by the guide wheel body 322.

[0052] Specifically, the connecting base 321 includes a first connecting portion 3211 and a second connecting portion 3212. The first connecting portion 3211 is swingably connected to the locking assembly 310, with the swing axis of the first connecting portion 3211 perpendicular to the extension direction of the cable 1. The guide wheel body 322 is rotatably disposed on the second connecting portion 3212, and the second connecting portion 3212 is swingably connected to the first connecting portion 3211, with the swing axis of the second connecting portion 3212 perpendicular to the swing axis of the first connecting portion 3211. This arrangement enables the chain 200 to swing with multiple degrees of freedom, thereby enhancing the flexibility of the guide wheel assembly 320.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The tightening device is characterized by: include: A wire pulling mechanism (100) and a chain (200), wherein the wire pulling mechanism (100) is detachably positioned on the utility pole (10) and is configured to pull the chain (200); A guide mechanism (300), the guide mechanism (300) comprising a locking assembly (310) and a guide wheel assembly (320), the locking assembly (310) being arranged on a support rod (20), the guide wheel assembly (320) being connected to the locking assembly (310), the chain (200) extending and passing around the guide wheel assembly (320), the support rod (20) being fixed to the electric pole (10) and spaced apart from the wire pulling mechanism (100), and the cable (1) being mounted on the electric pole (10); a wire clamping mechanism (400), the wire clamping mechanism (400) being connected to the chain (200) and being detachably connected to the cable (1); The locking assembly (310) comprises two fasteners (312) that are fastened together to form an installation inner hole (311); the support rod (20) passes through and is fixed to the installation inner hole (311); and the two fasteners (312) are respectively connected to the guide wheel assembly (320); The locking assembly (310) further comprises a locking wedge (313), two engaging blocks (3131) being arranged on opposite sides of the locking wedge (313), and engaging grooves (3121) are respectively provided on opposite sides of the two fasteners (312) in the mounting inner hole (311), and the two engaging blocks (3131) are respectively engaged in the two engaging grooves (3121); The fastener (312) is provided with a first serrated portion (3122) and a second serrated portion (3123); the first serrated portion (3122) of one fastener (312) is meshedly connected to the first serrated portion (3122) of another fastener (312); and the second serrated portion (3123) of one fastener (312) is meshedly connected to the second serrated portion (3123) of another fastener (312).

2. The wire tightening device according to claim 1, characterized in that: The two fasteners (312) are respectively provided with through holes (3124) on opposite sides of the cable (1) in the extension direction; the support rod (20) is an angle steel, a portion of the support rod (20) is inserted into the through hole (3124), and the other portion is inserted into the mounting inner hole (311).

3. The wire tightening device according to claim 1, characterized in that: The guide wheel assembly (320) comprises a connecting seat (321) and a guide wheel body (322), wherein the connecting seat (321) is connected to the locking assembly (310), and the guide wheel body (322) is rotatably disposed on the connecting seat (321), and the chain (200) abuts against and passes around the guide wheel body (322).

4. The wire tightening device according to claim 3, characterized in that: The connecting seat (321) includes a first connecting portion (3211) and a second connecting portion (3212), wherein the first connecting portion (3211) is swingably connected to the locking assembly (310), and the swing axis of the first connecting portion (3211) is perpendicular to the extension direction of the cable (1); the guide wheel body (322) is rotatably arranged on the second connecting portion (3212), and the second connecting portion (3212) is swingably connected to the first connecting portion (3211), and the swing axis of the second connecting portion (3212) is perpendicular to the swing axis of the first connecting portion (3211).

5. The wire tightening device according to any one of claims 1 to 4, characterized in that: The wire pulling mechanism (100) comprises a base (110), a hoist (120) and a wheel. The hoist (120) is arranged on the base (110). The base (110) is provided with a clamp assembly (111). The clamp assembly (111) is detachably fastened to the electric pole (10). The hoist (120) is connected to the chain (200). The wheel is arranged at the bottom of the base (110).

6. The wire tightening device according to claim 5, characterized in that: The wire pulling mechanism (100) further includes a controller (130), wherein the controller (130) is arranged on the base (110), and the hoist (120) is communicatively connected to the controller (130). The controller (130) can control the start and stop of the hoist (120), and can also control the pulling and releasing of the chain (200) by the hoist (120).

7. Cable laying system, characterized in that, It comprises a utility pole (10), a supporting rod (20), and a line tightening device according to any one of claims 1 to 6.

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