Automatic wire clamping and tightening device and method for overhead transmission line

Abstract

The invention discloses an automatic wire clamping and tightening device and method for an overhead transmission line, and belongs to the technical field of overhead transmission line erecting equipment.The automatic wire clamping and tightening device is provided with a shell fixing ring positioned at a tower fixing part, the lower surface of the shell fixing ring is provided with a shell, and the left rear side of the outer surface of the shell is provided with a lifting motor; comprising a first synchronous wheel installed on an output shaft of the lifting motor, and a synchronous belt is rotationally arranged on the outer surface of the first synchronous wheel. According to the automatic wire clamping and tightening device and method for the overhead transmission line, a shell fixing ring convenient to hoist is arranged, starting of a lifting motor is matched, use of a first synchronous wheel, a second synchronous wheel and a ratchet wheel is controlled, a second adjusting gear is linked to rotate, and rotation of a first transmission chain wheel is controlled, so that a chain is controlled to move and convey a clamped clamping piece; and through the use of a pawl I and a pawl II, the clamping piece used by the working automatic wire clamping mechanism is prevented from loosening during tightening.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead transmission line erection equipment, in particular to an automatic wire clamping and tightening device and method for overhead transmission lines. Background Art

[0002] With the rapid development of the national economy, the demand for electricity continues to rise, and the construction of overhead transmission lines has become increasingly important. When erecting overhead transmission lines, a wire tensioner is an indispensable tool, mainly used to tighten the conductors to ensure that their tension meets the specified standards, while maintaining a safe distance between the conductors and the ground, thereby ensuring the safety and efficient operation of the transmission lines. In addition, in the daily maintenance of power lines, wire tensioners are often used to adjust the tension of the conductors to cope with tension fluctuations caused by line aging, load changes or other factors. At present, the tensioning construction generally adopts the method of "coarse adjustment of motorized capstan combined with fine adjustment of wire tensioner" to ensure that the sag of the conductor can accurately meet the design requirements. Common tensioning devices include ratchet tensioners, etc., which effectively prevent the conductor from loosening due to backlash through the one-way non-return principle of the ratchet pawl during the process of tightening the overhead conductors.

[0003] In order to overcome the above-mentioned defects, the existing technology (application number CN202410163803.2, Chinese patent application date 2024-02-05) is a wire clamp for tightening overhead transmission cables. The wire clamp can be moved to the corresponding position where the wire needs to be clamped by a roller mechanism, and the wire clamping mechanism can be driven by a driving mechanism to clamp the cable after the wire clamp moves to the corresponding position. There is no need for operators to climb out of the pole tower to install the wire clamp on the suspended cable, which not only reduces the operating difficulty and work intensity of the operators, but also greatly reduces the risk of falling during high-altitude operations, thereby improving the safety of the operators; there is also the existing technology (application number CN201320750308.9, Chinese patent application date 2013-11-25) a ball head wire clamp for tightening overhead lines. The ball head wire clamp is used to connect a single string of porcelain bottles and a traction rope, and the traction rope is tightened by pulling the traction rope through a capstan. The overall structure is simple, convenient and practical, and the line tightening efficiency is improved. , fully guarantee construction safety and reduce construction costs; and the prior art (application number CN202311544263.4, Chinese patent application date 2023-11-17) an overhead line tightening device auxiliary clamp and an overhead line tightening device, which can quickly and effectively move the wire clamp to the position where the transmission wire needs to be clamped, without the need to use an operating lever to hang the wire clamp at the set position of the transmission wire, so as to quickly tighten the transmission wire of the overhead line; although the prior art can complete the use of tightening limit, the tightening device is manually dependent during work, and the tightening construction operation mainly relies on manual observation and operation, which is greatly affected by human factors such as the operating skills of the construction personnel. The level of automation is not high, and it is difficult to intuitively judge the clamping force during the clamping process, resulting in excessive or excessive clamping, causing damage or falling of the wire, safety issues, and tightening operations often require workers to work at high altitudes, which poses a greater safety risk.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original automatic wire clamping and tightening device for overhead transmission lines. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic wire clamping and tightening device and method for overhead transmission lines, so as to solve the problems raised in the above background technology that the wire tightening device has manual dependence during operation, the wire tightening construction operation mainly relies on manual observation and operation, and is greatly affected by human factors such as the operating skills of the construction personnel, the automation level is not high, and it is difficult to intuitively judge the clamping force during the clamping process of clamping and fixing the wires, resulting in excessive clamping or excessive looseness, causing damage to the wires or falling off, and safety issues. In addition, the wire tightening operation often requires workers to work at high altitudes, which poses a great safety risk.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic wire clamping and tightening device and method for an overhead transmission line, comprising: an outer shell fixing ring positioned at a fixed position of a pole tower, an outer shell body mounted on the lower surface of the outer shell fixing ring, and a lifting motor mounted on the left rear side of the outer surface of the outer shell; comprising: a synchronous wheel 1, mounted on the output shaft of the lifting motor, and a synchronous belt rotating on the outer surface of the synchronous wheel 1, and a synchronous wheel 2 rotating on the inner surface of the synchronous belt, and a ratchet coaxially mounted on the outer surface of the synchronous wheel 2, and the ratchet is provided with an anti-reverse mechanism; a gear 1, coaxially rotating on the right side of the outer surface of the ratchet wheel, and the lower surface of the gear 1 meshingly connected with the gear 2, and a transmission sprocket 1 coaxially mounted on the outer surface of the gear 2, and a chain wound around the inner surface of the transmission sprocket 1, and a transmission sprocket 2 wound around the other side of the chain, and a lifting mechanism is provided on the lower side of the chain.

[0007] Preferably, the synchronous wheel 1 and the lifting motor form a rotating structure, and the synchronous wheel 1 and the synchronous wheel 2 form a rotating structure through a synchronous belt, and the synchronous wheel 2 and the ratchet form a coaxial rotating structure.

[0008] Through the above structure, it is convenient to control the synchronous wheel 2 to adjust the rotation of the ratchet wheel in linkage during use, thereby controlling the subsequent tightening control of the ratchet wheel.

[0009] Preferably, the anti-reversal mechanism includes a pawl 1 that is engaged with the lower side of the outer surface of the ratchet, and a pawl 2 is engaged with the upper side of the outer surface of the ratchet, and the pawl 2 is limited to rotate on the inner surface of the outer shell, and an extrusion spring 1 is elastically connected between the pawl 2 and the outer shell.

[0010] The above structure can prevent the wire from falling off after being tightened during use, thereby improving the locking stability.

[0011] Preferably, the ratchet wheel, the pawl 1 and the pawl 2 form an engaging structure, and the pawl 2 forms an elastic rotation structure with the outer shell through the compression spring 1, and the outer shell and the pawl 2 form a limiting structure.

[0012] Through the above structure, it is easy to control the stability of the first and second pawls during use and prevent them from being dislocated and falling off.

[0013] Preferably, the gear 1 and the ratchet form a coaxial rotation structure, and the gear 1 and the gear 2 form an engagement structure, and the gear 2 and the transmission sprocket 1 form a coaxial rotation structure, and the chain is wound from right to left about the upper sides of the transmission sprocket 1 and the transmission sprocket 2.

[0014] With the above structure, when in use, the gear 1 coaxially assembled with the ratchet controls the gear 2 to rotate in conjunction, thereby controlling the tightening of the chain.

[0015] Preferably, the lifting mechanism includes a movable pulley connected to the lower side of the chain, and a rotating frame is rotated on the lower side of the inner surface of the movable pulley, and a chain is wrapped around the upper sprocket on the inner surface of the rotating frame, and at the same time, a connecting frame 1 is rotated on the lower surface of the rotating frame, and a connecting frame 2 is penetrated by the lower side shaft of the connecting frame 1, and at the same time, a fixed body is rotated on the lower side of the inner surface of the connecting frame 2.

[0016] With the above structure, the position of the movable pulley can be effectively controlled by the chain during use, and the positions of the first connecting frame, the second connecting frame and the fixed body can be controlled.

[0017] Preferably, the chain end and the movable pulley form an axis-through structure, and the movable pulley and the rotating frame form a nested rotating structure, and the chain is wound from right to left about the upper side of the inner surface of the rotating frame. At the same time, the rotating frame and the connecting frame one and the connecting frame two form a linked rotating structure, and the connecting frame two and the fixed body form a rotating structure.

[0018] Through the above structure, the linkage adjustment of the fixed body can be synchronously controlled during use, thereby improving the stability of the movement of the fixed body.

[0019] Preferably, the upper surface of the fixed body is rotated with a transmission screw through the wire clamping motor, and the lower surface of the transmission screw is threadedly connected to a sliding nut, and the lower surface of the sliding nut is rotated with a push rod, and at the same time, the outer surface of the push rod is slidably connected to a clamp, and the clamp is slid laterally on the lower side of the inner surface of the fixed body, and the clamp is provided with a snap-fit ​​replacement mechanism; the fixed body forms a threaded sliding structure through the transmission screw and the sliding nut, and the sliding nut forms an extrusion sliding structure through the push rod and the clamp, and the clamp is symmetrically arranged about the middle section of the inner surface of the fixed body.

[0020] Through the above structure, the clamp can be effectively controlled to clamp and limit the line during use to avoid slipping.

[0021] Preferably, the locking replacement mechanism includes an extrusion rod slidably connected to the inner surface of the clamp, and an extrusion block 1 is installed on the outer surface of the extrusion rod, and an extrusion spring 2 is elastically connected between the extrusion rod and the clamp, and at the same time, the outer surface of the extrusion block 1 is nested with a sliding extrusion connection limit piece, and the limit piece is limited and slid in the clamp, and the outer surface of the limit piece is locked and connected with a clamp, and the clamp is nested in the clamp, and a clamp is installed on the outer surface of the clamp; the clamp forms an elastic sliding structure with the extrusion rod through the extrusion spring 2, and the extrusion rod forms a sliding extrusion structure with the limit piece through the extrusion block 1, and the limit piece is set to slide at equal angles about the inner surface of the clamp, and the limit piece forms a limiting locking structure with the clamp through the clamp, and the clamp and the clamp form an integrated structure, and the clamp and the clamp form a nested structure.

[0022] Through the above structure, the clamping part can be easily replaced during use, and the outer surface of the clamping part has a tilted L-shaped structure, which prevents it from falling off during clamping and moving, thereby improving safety in use, and the anti-slip structure of the clamping surface of the clamping part increases the clamping stability.

[0023] Preferably, the lifting motor assembled in the starting outer shell rotates, driving the synchronous wheel 1 to control the rotation of the ratchet assembled in the synchronous wheel 2, and the ratchet is used for anti-reversal through the pawl 1 and the pawl 2, and the gear 1 coaxially assembled with the ratchet controls the rotation of the transmission sprocket 1 connected to the gear 2, thereby controlling the chain wrapped around the transmission sprocket 1 to rotate and convey, driving the fixed body on the lower side of the movable pulley assembled in the chain to perform lifting and adjustment, thereby controlling the position of the fixed body to adjust the push rod and squeeze the adjustment clamp to start clamping the line, and the clamp reduces the clamping damage to the line when the line is clamped stably through the clamping piece assembled with limitable engagement.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic wire clamping and tightening device and method for overhead transmission lines are provided with a shell fixing ring for easy lifting. In conjunction with the start of the lifting motor, the use of synchronous wheels 1 and 2 and the ratchet is controlled, the rotation of the linkage adjustment gear 2 is controlled, and the rotation of the transmission sprocket 1 is controlled, thereby controlling the chain to move and transport the clamped clamping parts, improving the clamping line of the clamping parts and tightening the limit stably. The use of the pawl 1 and the pawl 2 can prevent the clamping parts used in the automatic wire clamping mechanism from loosening during tightening.

[0025] 2. The automatic wire clamping and tightening device and method for overhead transmission lines are provided with an anti-reversal mechanism, which controls the synchronous belt to adjust the rotation of synchronous wheel 2 through synchronous wheel 1, and coaxially drives the ratchet to cooperate with pawl 1 and pawl 2, controls gear 1 on the ratchet to avoid reversal, thereby linking the rotation of transmission sprocket 1 on meshing adjustment gear 2, conveying the chain, and preventing the chain from reversing, thereby improving the stability of chain use.

[0026] 3. The automatic line clamping and tightening device and method for overhead transmission lines are provided with a lifting mechanism, which effectively controls the position of the movable pulley through the chain by rotating the transmission sprocket one, thereby adjusting the position of the rotating frame adjusting connecting frame one on the movable pulley, and linkage-controlling the line clamped by the clamping member to be tightened, and controls the movement stability of the chain by rotating the chain, the transmission sprocket two and the sprocket body on the rotating frame, and prevents the chain and the transmission sprocket from falling off by the stop ring assembled at the end of the chain; further, by fixing the clamping motor assembled on the main body, effectively controls the position of the push rod and the clamp, and controls the clamping member to stably clamp the line to a limit; further, by cooperating with the extrusion block one assembled by the extrusion rod on the clamp and the limit member, the clamping member is prevented from falling off, and the stability of the clamping member during use is effectively controlled by the installed clamping member to prevent it from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the automatic wire clamping and tightening device for overhead power transmission lines of the present invention; Figure 2 This is a schematic diagram of the right-side perspective structure of the synchronous wheel of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the ratchet of the present invention from the right side; Figure 4 This is a left-side perspective structural diagram of a transmission sprocket according to the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the movable pulley of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting frame of the present invention in two halves; Figure 7 This is a schematic diagram of a partially cutaway three-dimensional structure of the clamp of the present invention; Figure 8 For the present invention Figure 7 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0028] In the figure: 1. Shell fixing ring; 2. Shell body; 3. Lifting motor; 4. Synchronous wheel 1; 5. Synchronous belt; 6. Synchronous wheel 2; 7. Ratchet; 8. Ratchet 1; 9. Ratchet 2; 10. Extrusion spring 1; 11. Gear 1; 12. Gear 2; 13. Drive sprocket 1; 14. Chain; 15. Movable pulley; 16. Rotating frame; 17. Drive sprocket 2; 18. Connecting frame 1; 19. Connecting frame 2; 20. Fixed body; 21. Drive screw; 22. Sliding nut; 23. Push rod; 24. Clamp; 25. Extrusion rod; 26. Extrusion block 1; 27. Extrusion spring 2; 28. Limiting piece; 29. ​​Card piece; 30. Clamping piece. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-8 The present invention provides a technical solution: an automatic wire clamping and tightening device and method for overhead transmission lines, which is provided with an outer shell fixing ring 1 positioned at a fixed position of a tower, an outer shell body 2 is installed on the lower surface of the outer shell fixing ring 1, and a lifting motor 3 is installed on the left rear side of the outer surface of the outer shell body 2.

[0031] Example 1: Figure 1-Figure 5The technical solution shown in the figure, the present invention provides the following technical solution: an overhead transmission line automatic wire clamping and tightening device and method, disclosed: comprising: a synchronous wheel 4, mounted on the output shaft of the lifting motor 3, and the outer surface of the synchronous wheel 4 is rotated by a synchronous belt 5, and the inner surface of the synchronous belt 5 is rotated by a synchronous wheel 2 6, and the outer surface of the synchronous wheel 2 6 is coaxially mounted with a ratchet 7, and the ratchet 7 is provided with an anti-reverse mechanism; a gear 11, coaxially rotating on the right side of the outer surface of the ratchet 7, and the lower surface of the gear 11 is meshed with the gear 2 12, and the outer surface of the gear 2 12 is coaxially mounted with a transmission sprocket 13, and the transmission A chain 14 is wound around the inner surface of the moving sprocket 13, and a transmission sprocket 2 17 is wound around the other side of the chain 14. At the same time, a lifting mechanism is provided on the lower side of the chain 14; the synchronous wheel 14 and the lifting motor 3 form a rotating structure, and the synchronous wheel 14 forms a rotating structure with the synchronous wheel 2 6 through the synchronous belt 5, and the synchronous wheel 2 6 and the ratchet 7 form a coaxial rotating structure; the anti-reversal mechanism includes a pawl 1 8 engaged with the lower side of the outer surface of the ratchet 7, and a pawl 2 9 is engaged with the upper side of the outer surface of the ratchet 7, and the pawl 2 9 is limited to rotate on the inner surface of the outer shell 2, and an extrusion spring 10 is elastically connected between the pawl 2 9 and the outer shell 2. The ratchet 7 forms a meshing structure with the pawl 1 8 and the pawl 2 9, and the pawl 2 9 forms an elastic rotation structure with the outer shell 2 through the compression spring 10, and the outer shell 2 and the pawl 2 9 form a limiting structure; the gear 11 and the ratchet 7 form a coaxial rotation structure, and the gear 11 and the gear 2 12 form a meshing structure, and the gear 2 12 and the transmission sprocket 1 13 form a coaxial rotation structure, and the chain 14 is wound from right to left about the upper side of the transmission sprocket 13 and the transmission sprocket 2 17; the lifting mechanism includes a movable pulley 15 connected to the lower side of the chain 14, and a rotating frame 16 is rotated on the lower side of the inner surface of the movable pulley 15. In addition, a chain 14 is wrapped around the sprocket on the upper side of the inner surface of the rotating frame 16, and a connecting frame 18 is rotated on the lower surface of the rotating frame 16, and a connecting frame 2 19 is penetrated by the lower shaft of the connecting frame 18, and a fixed body 20 is rotated on the lower side of the inner surface of the connecting frame 2 19; the end of the chain 14 and the movable pulley 15 form an axis-penetrating structure, and the movable pulley 15 and the rotating frame 16 form a nested rotating structure, and the chain 14 is wrapped from right to left about the upper side of the inner surface of the rotating frame 16, and the rotating frame 16, connecting frame 18 and connecting frame 2 19 form a linked rotating structure, and connecting frame 2 19 and the fixed body 20 form a rotating structure.

[0032] When the outer shell fixing ring 1 is fixed in the corresponding position, the outer shell 2 is fixed, and after the line is clamped by the clamping member 30, the lifting motor 3 is started to control the rotation of the output shaft, and the synchronous belt 5 is driven to rotate by the synchronous wheel 1 4 on the output shaft, thereby controlling the synchronous wheel 2 6 to rotate synchronously, and the use of the synchronous wheel 1 4 and the synchronous wheel 2 6 can reduce the speed when transmitting power, and drive the coaxially mounted ratchet 7 to rotate in conjunction with the rotation of the synchronous wheel 2 6. When the ratchet 7 rotates, it will engage with the pawl 1 8 and the pawl 2 9, thereby adjusting the ratchet 7 to rotate in one direction for anti-reverse protection, and when the pawl 2 9 rotates, it will engage with the outer shell 2 to avoid reversal, and cooperate with the extrusion spring 10 between the pawl 2 9 and the outer shell 2 to increase the anti-reversal stability of the pawl 2 9, and When the ratchet 7 rotates, it drives the coaxially installed gear 11 and gear 2 12 to engage and rotate, and the gear 2 12 drives the transmission sprocket 13 to control the chain 14 to be transported, and the end of the chain 14 passes through the connected movable pulley 15, which will synchronously control the rotation of the rotating frame 16 to move and tighten the line. The sprocket rotating coaxially between the rotating frame 16 and the movable pulley 15 will bypass the chain 14, so that the bypassed chain 14 will bypass the upper side of the transmission sprocket 2 17 again, and cooperate with the stop ring installed at the end of the chain 14 to prevent the chain 14 from falling off from the transmission sprocket 1 13 and the transmission sprocket 2 17. When the rotating frame 16 moves upward, the connecting frame 2 19 assembled by the synchronously controlled connecting frame 18 and the fixed body 20 assembled therewith will move synchronously to control the movement stability.

[0033] Example 2: Figure 1 、 Figure 6 、 Figure 7 and Figure 8 The technical solution shown, on the basis of Example 1, also discloses a fixed body 20 adjusting the clamp 24 for limited clamping, and its specific contents are as follows: the upper surface of the fixed body 20 is rotated by a wire clamping motor with a transmission screw 21, and the lower surface of the transmission screw 21 is threadedly connected to a sliding nut 22, and the lower surface of the sliding nut 22 is rotated with a push rod 23, and at the same time, the outer surface of the push rod 23 is slidably connected to the clamp 24, and the clamp 24 is slid laterally on the lower side of the inner surface of the fixed body 20, and the clamp 24 is provided with a snap-fit ​​replacement mechanism; the fixed body 20 forms a threaded sliding structure with the sliding nut 22 through the transmission screw 21, and the sliding nut 22 forms an extrusion sliding structure with the clamp 24 through the push rod 23, and the clamp 24 is symmetrically arranged about the middle section of the inner surface of the fixed body 20.

[0034] When the line needs to be clamped, the clamping motor on the fixed body 20 is started, the clamping motor is controlled to drive the transmission screw 21 to rotate, and the sliding nut 22 connected to the transmission screw 21 is threadedly controlled to move on the lower side of the fixed body 20, and the push rod 23 assembled by the sliding nut 22 is controlled to rotate, the position of the sliding squeeze clamp 24 is slidingly squeezed, and the line is clamped. The rotation combination of the push rod 23 and the sliding nut 22 prevents the sliding nut 22 from rotating on its own, thereby improving the stability of the relative movement of the clamp 24 on the fixed body 20.

[0035] Example 3: Figure 1 、 Figure 6 、 Figure 7 and Figure 8 The technical solution shown in the figure, on the basis of the second embodiment, also discloses the disassembly and assembly structure of the clamping member 30 on the clamp 24, the specific contents of which are as follows: the clamping and replacing mechanism includes an extrusion rod 25 slidably connected to the inner surface of the clamp 24, and an extrusion block 26 is installed on the outer surface of the extrusion rod 25, and an extrusion spring 27 is elastically connected between the extrusion rod 25 and the clamp 24, and the outer surface of the extrusion block 26 is nested in a sliding extrusion connection limit member 28, and the limit member 28 is limited to slide in the clamp 24, and the outer surface of the limit member 28 is clamped and connected with the clamp 2 9, and the clamp 29 is nested in the clamp 24, and a clamp 30 is installed on the outer surface of the clamp 29; the clamp 24 forms an elastic sliding structure with the extrusion rod 25 through the extrusion spring 27, and the extrusion rod 25 forms a sliding extrusion structure with the limiter 28 through the extrusion block 1 26, and the limiter 28 is set to slide at equal angles about the inner surface of the clamp 24, and at the same time, the limiter 28 forms a limiting engaging structure with the clamp 30 through the clamp 29, and the clamp 30 and the clamp 29 form an integrated structure, and at the same time, the clamp 29 and the clamp 24 form a nested structure.

[0036] When the clamp 24 is used for clamping, the extrusion rod 25 sliding on the clamp 24 is controlled to move upward, and the extrusion spring 27 is adjusted to contract by the extrusion rod 25, and the extrusion block 1 26 installed on the extrusion rod 25 is driven to slide in the clamp 24, and the oblique extrusion limiter 28 is linked to slide in the clamp 24, and the control limiter 28 is contracted into the clamp 24, and the corresponding clamping member 30 is selected and installed to be nested in the clamp 24, so that the extrusion rod 25 can be loosened, and the extrusion rod 25 is squeezed by the elasticity of the extrusion spring 27 to slide in the clamp 24, thereby controlling the extrusion block 1 26 installed on the extrusion rod 25, and the oblique extrusion limiter 28 is nested in the clamping member 29, thereby controlling the stability of the clamping member 30 installed by the clamping member 29, preventing the clamping member 30 from detaching during normal operation, improving the stability of use, and clamping different protective lines by the clamping member 30 to improve the safety of line movement.

[0037] When in use, the lifting motor 3 assembled in the outer shell 2 is started to rotate, driving the synchronous wheel 1 4 to control the rotation of the ratchet 7 assembled in the synchronous wheel 2 6, and the ratchet 7 is used for anti-reversal through the pawl 1 8 and the pawl 2 9, and the gear 11 coaxially assembled with the ratchet 7 engages and controls the rotation of the transmission sprocket 13 connected to the gear 2 12, thereby controlling the chain 14 wound around the transmission sprocket 13 to rotate and convey, driving the fixed body 20 on the lower side of the movable pulley 15 assembled in the chain 14 to be raised and lowered, thereby controlling the fixed body 20 to adjust the position of the push rod 23 and squeeze the adjustment clamp 24 to start clamping the line, and the clamp 24 reduces the clamping damage to the line when the line is clamped stably through the clamping part 30 assembled by the limitable engagement.

[0038] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic wire clamping and tightening device for an overhead transmission line, comprising a housing fixing ring (1) positioned at a fixed position of a tower, a housing body (2) being mounted on the lower surface of the housing fixing ring (1), and a lifting motor (3) being mounted on the left rear side of the outer surface of the housing body (2); It is characterized by: include: A synchronous wheel (4) is mounted on the output shaft of the lifting motor (3), and a synchronous belt (5) is rotated on the outer surface of the synchronous wheel (4), and a synchronous wheel (6) is rotated on the inner surface of the synchronous belt (5), and a ratchet (7) is coaxially mounted on the outer surface of the synchronous wheel (6), and the ratchet (7) is provided with an anti-reversal mechanism; Gear one (11) rotates coaxially on the right side of the outer surface of the ratchet (7), and the lower surface of gear one (11) is meshed with gear two (12), and the outer surface of gear two (12) is coaxially mounted with transmission sprocket one (13), and the inner surface of transmission sprocket one (13) is wound with a chain (14), and the other side of the chain (14) is wound with transmission sprocket two (17), and a lifting mechanism is provided on the lower side of the chain (14).

2. The automatic wire clamping and tightening device for overhead power lines according to claim 1, characterized in that: The synchronous wheel 1 (4) and the lifting motor (3) form a rotating structure, and the synchronous wheel 1 (4) and the synchronous wheel 2 (6) form a rotating structure through the synchronous belt (5), and the synchronous wheel 2 (6) and the ratchet (7) form a coaxial rotating structure.

3. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 1, characterized in that: The anti-reversal mechanism comprises a ratchet 1 (8) engaged with the lower side of the outer surface of the ratchet (7), and a ratchet 2 (9) engaged with the upper side of the outer surface of the ratchet (7), and the ratchet 2 (9) is limited in rotation on the inner surface of the outer shell (2), and an extrusion spring 1 (10) is elastically connected between the ratchet 2 (9) and the outer shell (2).

4. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 3, characterized in that: The ratchet (7) forms an engagement structure with the first pawl (8) and the second pawl (9), and the second pawl (9) forms an elastic rotation structure with the outer shell (2) through the compression spring (10), and the outer shell (2) and the second pawl (9) form a limiting structure.

5. The automatic wire clamping and tightening device for overhead power lines according to claim 1, characterized in that: The gear 1 (11) and the ratchet (7) form a coaxial rotation structure, and the gear 1 (11) and the gear 2 (12) form a meshing structure, and the gear 2 (12) and the transmission sprocket 1 (13) form a coaxial rotation structure, and the chain (14) is wound from right to left about the upper sides of the transmission sprocket 1 (13) and the transmission sprocket 2 (17).

6. The automatic wire clamping and tightening device for overhead power lines according to claim 1, characterized in that: The lifting mechanism includes a movable pulley (15) connected to the lower side of the chain (14), and a rotating frame (16) is rotated on the lower side of the inner surface of the movable pulley (15), and the chain (14) is wound around the upper sprocket on the inner surface of the rotating frame (16), and a connecting frame 1 (18) is rotated on the lower surface of the rotating frame (16), and a connecting frame 2 (19) is penetrated by the lower side shaft of the connecting frame 1 (18), and a fixed body (20) is rotated on the lower side of the inner surface of the connecting frame 2 (19).

7. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 6, characterized in that: The end of the chain (14) and the movable pulley (15) form an axis-through structure, and the movable pulley (15) and the rotating frame (16) form a nested rotating structure, and the chain (14) is wound from right to left about the upper side of the inner surface of the rotating frame (16), and the rotating frame (16) and the connecting frame 1 (18) and the connecting frame 2 (19) form a linked rotating structure, and the connecting frame 2 (19) and the fixed body (20) form a rotating structure.

8. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 6, characterized in that: The upper surface of the fixed body (20) is rotated by a wire clamping motor with a transmission screw (21), and the lower surface of the transmission screw (21) is threadedly connected to a sliding nut (22), and the lower surface of the sliding nut (22) is rotated with a push rod (23), and at the same time, the outer surface of the push rod (23) is slidably connected to a clamp (24), and the clamp (24) is slid laterally on the lower side of the inner surface of the fixed body (20), and the clamp (24) is provided with a snap-fit ​​replacement mechanism; the fixed body (20) forms a threaded sliding structure with the transmission screw (21) and the sliding nut (22), and the sliding nut (22) forms an extrusion sliding structure with the clamp (24) through the push rod (23), and the clamp (24) is symmetrically arranged with respect to the middle section of the inner surface of the fixed body (20).

9. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 8, characterized in that: The snap-fit ​​replacement mechanism includes an extrusion rod (25) slidably connected to the inner surface of the clamp (24), and an extrusion block (26) is installed on the outer surface of the extrusion rod (25), and an extrusion spring (27) is elastically connected between the extrusion rod (25) and the clamp (24), and at the same time, the outer surface of the extrusion block (26) is nested in a sliding extrusion connection limiter (28), and the limiter (28) is limitedly slid in the clamp (24), and the outer surface of the limiter (28) is snap-fitted with a clamp (29), and the clamp (29) is nested in the clamp (24), and the clamp (29) is elastically connected to the clamp (24). A clamping member (30) is installed on the outer surface; the clamp (24) forms an elastic sliding structure with the extrusion spring 2 (27) and the extrusion rod (25), and the extrusion rod (25) forms a sliding extrusion structure with the limit member (28) through the extrusion block 1 (26), and the limit member (28) is set to slide at an equal angle with respect to the inner surface of the clamp (24), and the limit member (28) forms a limiting clamping structure with the clamp (30) through the clamp (29), and the clamp (30) and the clamp (29) form an integrated structure, and the clamp (29) and the clamp (24) form a nested structure.

10. The automatic wire clamping and tightening device for overhead power transmission lines according to claim 1, characterized in that: Also disclosed is a method for using an automatic line clamping and tightening device for an overhead transmission line. The specific method steps are as follows: starting a lifting motor (3) assembled with an outer shell (2) to rotate, driving a synchronous wheel (4) to control a ratchet (7) assembled with a synchronous wheel (6) to rotate, and the ratchet (7) is used to prevent reverse rotation through a pawl (8) and a pawl (9), and coaxially assembling a gear (11) with the ratchet (7) to engage and control a transmission sprocket (13) connected with the gear (12) to rotate, thereby controlling a chain (14) wound around the transmission sprocket (13) to rotate and convey, driving a fixed body (20) on the lower side of a movable pulley (15) assembled with the chain (14) to perform lifting and lowering adjustment, thereby controlling the fixed body (20) to adjust the position of a push rod (23) and squeeze and adjust the clamp (24) to start clamping the line, and the clamp (24) reduces the clamping damage to the line when the line is clamped stably through a clamping member (30) assembled with a limitable engagement.

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