An automatic overhead power line clamping and tightening device and method

Abstract

The application discloses an overhead power transmission line automatic clamping and tightening device and method, and belongs to the technical field of overhead power transmission line erecting equipment. The device is provided with a shell fixing ring positioned at a fixed part of a tower, a shell body is mounted on the lower surface of the shell fixing ring, and a lifting motor is mounted on the left rear surface of the shell body. The device comprises a synchronous wheel one mounted on the output shaft of the lifting motor, and a synchronous belt is rotatably mounted on the outer surface of the synchronous wheel one. The overhead power transmission line automatic clamping and tightening device is provided with a shell fixing ring convenient for hoisting, and the starting of the lifting motor is matched to control the use of the synchronous wheel one, the synchronous wheel two and the ratchet wheel, linkage adjustment gear two is rotated to control the rotation of the transmission sprocket one, so that the chain is controlled to move and convey the clamped clamping pieces, the clamping pieces are improved to clamp the line and stably tighten the limit, and the use of the pawl one and the pawl two avoids loosening of the clamping pieces of the automatic clamping mechanism during tightening.

Description

TECHNICAL FIELD

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

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

[0003] In order to overcome the above defects, the prior art (Chinese patent application with application number CN202410163803.2 and application date of 2024-02-05) for the line clamp of overhead power cable tensioning can realize the self-movement of the line clamp to the corresponding position where the line needs to be clamped through the roller mechanism, and the line can be clamped after the line clamp moves to the corresponding position through the driving mechanism, so that the operation personnel do not need to climb out of the tower to install the line clamp on the suspended cable, thereby not only reducing the operation difficulty and working strength of the operation personnel, but also greatly reducing the risk of falling in high-altitude operation and improving the safety of the operation personnel; the prior art (Chinese patent application with application number CN201320750308.9 and application date of 2013-11-25) for the ball head wire clamp of overhead line tensioning connects a single string of porcelain insulator and a traction rope through the ball head wire clamp, and pulls the traction rope to tension the line, so that the overall structure is simple, convenient and practical, the line tensioning efficiency is improved, the construction safety is fully ensured, and the construction cost is reduced; and the prior art (Chinese patent application with application number CN202311544263.4 and application date of 2023-11-17) for the auxiliary clamp of overhead line tensioning device can quickly and effectively move the wire clamp to the position where the power transmission conductor needs to be clamped, without using the operating rod to hang the wire clamp at the set position of the power transmission conductor, so as to quickly tighten the power transmission conductor of the overhead line; although the prior art can complete the tensioning and limiting, the tensioning device is manually dependent in the working process, the tensioning operation mainly depends on manual observation and operation, is greatly affected by human factors such as operation skills of the construction personnel, has low automation level, and is difficult to directly judge the clamping force in the clamping process, which leads to over-tight or over-loose clamping, damage or falling of the conductor, safety problems, and the tensioning operation often needs the operation personnel to work in high altitude, which has great safety risk.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original overhead power transmission line automatic wire clamping and tensioning device. SUMMARY

[0005] The purpose of the present application is to provide an overhead power transmission line automatic wire clamping and tensioning device and method to solve the problems of manual dependence of the tensioning device in the working process, main dependence of the tensioning operation on manual observation and operation, great influence of human factors such as operation skills of the construction personnel, low automation level, difficulty in directly judging the clamping force in the clamping process, over-tight or over-loose clamping, damage or falling of the conductor, safety problems, and great safety risk of the tensioning operation often needing the operation personnel to work in high altitude.

[0006] In order to achieve the above object, the application provides the following technical scheme: an overhead power transmission line automatic clamping and tightening device and method, which is provided with a shell fixing ring positioned at a fixed position of a tower, a shell body is installed on the lower surface of the shell fixing ring, and a lifting motor is installed on the left rear surface of the outer surface of the shell body; it comprises: a synchronous pulley one, which is installed on the output shaft of the lifting motor, and a synchronous belt is rotatably installed on the outer surface of the synchronous pulley one, and a synchronous pulley two is rotatably installed on the inner surface of the synchronous belt, and a ratchet wheel is coaxially installed on the outer surface of the synchronous pulley two, and the ratchet wheel is provided with an anti-reverse mechanism; a gear one is coaxially rotatable on the right side of the outer surface of the ratchet wheel, and a gear two is meshingly connected to the lower surface of the gear one, and a transmission sprocket one is coaxially installed on the outer surface of the gear two, and a chain is wound on the inner surface of the transmission sprocket one, and another side of the chain is wound with a transmission sprocket two, and a lifting mechanism is arranged on the lower side of the chain.

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

[0008] Through the above structure, the synchronous pulley two is adjusted to rotate the ratchet wheel during use, so as to control the subsequent tightening control of the ratchet wheel.

[0009] Preferably, the anti-reverse mechanism comprises a pawl one clamped and connected to the lower side of the outer surface of the ratchet wheel, and a pawl two is clamped on the upper side of the outer surface of the ratchet wheel, and the pawl two is limited to rotate on the inner surface of the shell body, and the pawl two and the shell body are elastically connected with an extrusion spring one.

[0010] Through the above structure, the chain can be prevented from falling off after tightening, and the locking stability is improved.

[0011] Preferably, the ratchet wheel, the pawl one and the pawl two form a meshing structure, the pawl two and the shell body form an elastic rotating structure through the extrusion spring one, and the shell body and the pawl two form a limiting structure.

[0012] Through the above structure, the use stability of the pawl one and the pawl two can be controlled during use, and misplacement and falling off are prevented.

[0013] Preferably, the gear one and the ratchet wheel form a coaxial rotating structure, the gear one and the gear two form a meshing structure, the gear two and the transmission sprocket one form a coaxial rotating structure, and the chain is wound from right to left on the upper sides of the transmission sprocket one and the transmission sprocket two.

[0014] Through the above structure, the gear two is controlled to rotate in linkage through the gear one coaxially assembled with the ratchet wheel during use, so as to control the tightening of the chain.

[0015] Preferably, the lifting mechanism comprises a chain lower side through connection of a movable pulley, and the inner surface of the movable pulley is provided with a rotating frame on the lower side, and the inner surface of the rotating frame is provided with a chain wheel on the upper side, and the lower surface of the rotating frame is provided with a connecting frame one, and the lower side of the connecting frame one is provided with a connecting frame two, and the inner surface of the connecting frame two is provided with a fixed main body on the lower side.

[0016] Through the above structure, the position of the movable pulley can be effectively controlled by the chain during use, and the positions of the connecting frame one, the connecting frame two and the fixed main body can be controlled.

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

[0018] Through the above structure, the linkage adjustment of the fixed main body can be synchronously controlled during use, and the stability of the movement of the fixed main body is improved.

[0019] Preferably, the upper surface of the fixed main body is provided with a transmission screw rotated by a wire clamping motor, the lower surface of the transmission screw is provided with a sliding nut in threaded connection, the lower surface of the sliding nut is provided with a push rod, the outer surface of the push rod is provided with a clamp in sliding connection, the clamp is horizontally slid on the inner surface of the fixed main body, and the clamp is provided with a clamping replacement mechanism; the fixed main body and the sliding nut form a threaded sliding structure through the transmission screw, the sliding nut and the clamp form a squeezing sliding structure through the push rod, and the clamp is symmetrically arranged about the middle section of the inner surface of the fixed main body.

[0020] Through the above structure, the clamp can effectively clamp and limit the wire during use, and slipping is avoided.

[0021] Preferably, the clamping replacement mechanism comprises an extrusion rod in sliding connection with the inner surface of the clamp, the outer surface of the extrusion rod is provided with an extrusion block one, the extrusion rod and the clamp are elastically connected with an extrusion spring two, the outer surface of the extrusion block one is provided with a limiting piece in nested sliding and squeezing connection, the limiting piece is limited to slide in the clamp, the outer surface of the limiting piece is provided with a clamping piece in clamping connection, the clamping piece is nested in the clamp, and the outer surface of the clamping piece is provided with a clamping piece; the clamp and the extrusion rod form an elastic sliding structure through the extrusion spring two, the extrusion rod and the limiting piece form a sliding and squeezing structure through the extrusion block one, the limiting piece is arranged at equal angles on the inner surface of the clamp, the limiting piece and the clamping piece form a limiting clamping structure, the clamping piece and the clamping piece form an integrated structure, and the clamping piece and the clamp form a nested structure.

[0022] Through the above structure, the clamping piece is convenient to replace in use, the outer surface of the clamping piece is in a toppling L structure, so that the clamping piece is prevented from falling off during movement, use safety is improved, and the clamping stability is improved through the anti-skid structure of the clamping surface of the clamping piece.

[0023] Preferably, the lifting motor is rotated to drive the synchronous wheel I to rotate the synchronous wheel II, the ratchet is prevented from reversing through the pawl I and the pawl II, the gear I coaxially assembled with the ratchet is engaged to control the rotation of the transmission sprocket I connected with the gear II, so that the chain wound around the transmission sprocket I is rotated to convey, the fixed main body at the lower side of the movable pulley assembled with the chain is lifted and adjusted, so that the position of the fixed main body adjusting the push rod is controlled, the adjusting clamp is pressed to start clamping the wire, and the clamping piece assembled with the limiting clamping is used to reduce the damage to the wire when the wire is clamped stably.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1. The overhead power transmission line automatic wire clamping and tightening device and method are provided with a shell fixing ring convenient for hoisting, the use of the synchronous wheel I, the synchronous wheel II and the ratchet is controlled through the starting of the lifting motor, the rotation of the gear II is adjusted in linkage, the rotation of the transmission sprocket I is controlled, so that the clamping piece after clamping is moved and conveyed by the chain, the wire clamped by the clamping piece is tightened stably and limited, and the clamping piece used by the automatic wire clamping mechanism is prevented from loosening during tightening through the use of the pawl I and the pawl II.

[0026] 2. The overhead power transmission line automatic wire clamping and tightening device and method are provided with an anti-reverse mechanism, the synchronous wheel II is rotated through the synchronous belt controlled by the synchronous wheel I, the ratchet is coaxially driven to cooperate with the pawl I and the pawl II, the gear I on the ratchet is prevented from reversing, so that the transmission sprocket I on the gear II is adjusted in linkage to rotate, the chain is conveyed, and the chain is prevented from reversing, so that the stability of the chain is improved.

[0027] 3. The overhead power transmission line automatic clamping and tightening device and method, provided with a lifting mechanism, through the rotation of the transmission sprocket one, effectively controls the position of the movable pulley through the chain, thereby adjusting the position of the rotating frame adjusting connecting frame one on the movable pulley, and controlling the line clamped by the clamping piece to be tightened, and through the rotation of the chain and the transmission sprocket two and the sprocket body on the rotating frame, the movement stability of the chain is controlled, and through the stop ring assembled at the end of the chain, the chain and the transmission sprocket are prevented from falling off; further, through the clamping motor assembled on the fixed main body, the position of the push rod and the clamp is effectively controlled, and the clamping piece is stably clamped and limited to the line; further, through the cooperation of the extrusion block one assembled on the extrusion rod of the clamp and the limiting piece, the clamping piece is prevented from falling off, and the clamping piece is effectively controlled during use. The stability of the clamping piece prevents it from slipping off. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a three-dimensional structure schematic diagram of the overhead power transmission line automatic clamping and tightening device of the application;

[0029] Figure 2 It is a right side view three-dimensional structure schematic diagram of the synchronous wheel one of the application;

[0030] Figure 3 It is a right side view three-dimensional structure schematic diagram of the ratchet wheel of the application;

[0031] Figure 4 It is a left side view three-dimensional structure schematic diagram of the transmission sprocket one of the application;

[0032] Figure 5 It is a three-dimensional structure schematic diagram of the movable pulley of the application;

[0033] Figure 6 It is a half cut three-dimensional structure schematic diagram of the connecting frame two of the application;

[0034] Figure 7 It is a three-dimensional structure schematic diagram of the clamp of the application;

[0035] Figure 8 It is a three-dimensional structure schematic diagram of the application Figure 7 It is an enlarged three-dimensional structure schematic diagram of A in the application.

[0036] In the figure: 1, the shell fixed ring; 2, the shell body; 3, the lifting motor; 4, the synchronous wheel one; 5, the synchronous belt; 6, the synchronous wheel two; 7, the ratchet; 8, the pawl one; 9, the pawl two; 10, the extrusion spring one; 11, the gear one; 12, the gear two; 13, the transmission sprocket one; 14, the chain; 15, the movable pulley; 16, the rotating frame; 17, the transmission sprocket two; 18, the connecting frame one; 19, the connecting frame two; 20, the fixed main body; 21, the transmission screw; 22, the sliding nut; 23, the push rod; 24, the clamp; 25, the extrusion rod; 26, the extrusion block one; 27, the extrusion spring two; 28, the limiting piece; 29, the clamping piece; 30, the clamping piece. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0038] Please refer to Figures 1-8 The present application provides a technical solution: an overhead power transmission line automatic wire clamping and tightening device and method, which is provided with a shell fixed ring 1 positioned at the fixed part of the tower, the lower surface of the shell fixed ring 1 is installed with a shell body 2, and the outer surface of the shell body 2 is installed with a lifting motor 3 at the left rear side.

[0039] Embodiment one: as Figures 1-5The technical scheme is shown, and the application provides the following technical scheme: an overhead power transmission line automatic clamping and tightening device and method, which discloses the following: a synchronous wheel one 4 is installed on the output shaft of a lifting motor 3, the outer surface of the synchronous wheel one 4 rotates a synchronous belt 5, the inner surface of the synchronous belt 5 rotates a synchronous wheel two 6, the outer surface of the synchronous wheel two 6 is coaxially installed with a ratchet wheel 7, and the ratchet wheel 7 is provided with an anti-reverse rotation mechanism; a gear one 11 is coaxially rotated on the right side of the outer surface of the ratchet wheel 7, the lower surface of the gear one 11 is meshingly connected with a gear two 12, the outer surface of the gear two 12 is coaxially installed with a transmission sprocket wheel one 13, the inner surface of the transmission sprocket wheel one 13 is wound with a chain 14, the other side of the chain 14 is wound with a transmission sprocket wheel two 17, and the lower side of the chain 14 is provided with a lifting mechanism; the synchronous wheel one 4 and the lifting motor 3 form a rotating structure, the synchronous wheel one 4 forms a rotating structure with the synchronous wheel two 6 through the synchronous belt 5, and the synchronous wheel two 6 and the ratchet wheel 7 form a coaxial rotating structure; the anti-reverse rotation mechanism includes a pawl one 8 that is clamped and connected on the lower side of the outer surface of the ratchet wheel 7, the upper side of the outer surface of the ratchet wheel 7 is clamped with a pawl two 9, the pawl two 9 is rotationally limited on the inner surface of an outer shell 2, and the pawl two 9 and the outer shell 2 are elastically connected with an extrusion spring one 10; the ratchet wheel 7, the pawl one 8 and the pawl two 9 form a meshing structure, the pawl two 9 forms an elastic rotating structure with the outer shell 2 through the extrusion spring one 10, and the outer shell 2 and the pawl two 9 form a limiting structure; the gear one 11 and the ratchet wheel 7 form a coaxial rotating structure, the gear one 11 and the gear two 12 form a meshing structure, the gear two 12 and the transmission sprocket wheel one 13 form a coaxial rotating structure, and the chain 14 is wound from right to left on the upper sides of the transmission sprocket wheel one 13 and the transmission sprocket wheel two 17; the lifting mechanism includes a movable pulley 15 that is connected through the lower side of the chain 14, the inner surface of the movable pulley 15 is rotationally provided with a rotating frame 16 on the lower side, the inner surface of the rotating frame 16 is wound with the chain 14 on the upper side, the lower surface of the rotating frame 16 is rotationally provided with a connecting frame one 18, the lower side of the connecting frame one 18 is penetrated with a connecting frame two 19, and the inner surface of the connecting frame two 19 is rotationally provided with a fixed main body 20; the end of the chain 14 and the movable pulley 15 form an axle penetrating structure, the movable pulley 15 and the rotating frame 16 form a nested rotating structure, the chain 14 is wound from right to left on the upper side of the inner surface of the rotating frame 16, the rotating frame 16 and the connecting frame one 18 and the connecting frame two 19 form a linkage rotating structure, and the connecting frame two 19 and the fixed main body 20 form a rotating structure.

[0040] When the shell fixing ring 1 is fixed in the corresponding position, the shell body 2 is fixed, and after the line is clamped by the clamping piece 30, the lifting motor 3 is started to control the output shaft to rotate, and the synchronous belt 5 is driven to rotate through the synchronous wheel one 4 on the output shaft, so that the synchronous wheel two 6 is controlled to rotate synchronously, and the use of the synchronous wheel one 4 and the synchronous wheel two 6 can reduce the rotating speed during power transmission, and the synchronous wheel two 6 is driven to rotate through the synchronous wheel two 6, and the synchronous wheel two 6 is driven to rotate through the synchronous wheel two 6. When the ratchet wheel 7 rotates, it will be engaged with the pawl one 8 and the pawl two 9, so as to adjust the one-way rotation of the ratchet wheel 7, prevent reverse rotation, and the pawl two 9 rotates and is clamped between the shell body 2 to avoid reverse rotation, and the pawl two 9 is clamped between the shell body 2 to avoid reverse rotation. The extrusion spring one 10 between the pawl two 9 and the shell body 2 increases the reverse rotation stability of the pawl two 9, and when the ratchet wheel 7 rotates, the coaxially installed gear one 11 and gear two 12 are engaged and rotated, and the gear two 12 drives the transmission sprocket one 13 to control the chain 14 to convey, and the end of the chain 14 penetrates the movable pulley 15 connected to the chain 14. The rotating frame 16 is synchronously controlled to rotate, the line is tightened for use, and the chain wheel between the rotating frame 16 and the movable pulley 15 rotates coaxially, bypasses the chain 14, and then bypasses the upper side of the transmission sprocket two 17, and cooperates with the stop ring installed at the end of the chain 14 to prevent the chain 14 from falling off the transmission sprocket one 13 and the transmission sprocket two 17. When the rotating frame 16 moves upwards, the connecting frame two 19 assembled with the connecting frame one 18 and the fixed main body 20 assembled therewith are synchronously moved to control the moving stability.

[0041] As shown in the technical scheme in Embodiment One, Figure 1 、 Figure 6 、 Figure 7 and Figure 8 On the basis of Embodiment One, the technical scheme is also disclosed that the fixed main body 20 adjusts the clamping jaw 24 to be limited and clamped, and the specific content is as follows: the upper surface of the fixed main body 20 is provided with a transmission screw 21 which rotates through a wire clamping motor, the lower surface of the transmission screw 21 is threadedly connected with a sliding nut 22, the lower surface of the sliding nut 22 rotates with a push rod 23, the outer surface of the push rod 23 is slidably connected with the clamping jaw 24, the clamping jaw 24 is slid laterally on the inner surface of the fixed main body 20, and the clamping jaw 24 is provided with a clamping replacement mechanism.

[0042] When it is necessary to clamp the line, the clamping motor on the fixed body 20 is started, which drives the transmission screw 21 to rotate. The screw controls the sliding nut 22 connected to the transmission screw 21 to move on the lower side of the fixed body 20. The push rod 23, which is assembled to control the rotation of the sliding nut 22, slides and squeezes the position of the clamp 24 to clamp the line. The rotation combination of the push rod 23 and the sliding nut 22 prevents the sliding nut 22 from rotating on its own, thus improving the stability of the clamp 24 relative to the fixed body 20.

[0043] Example 3: Figure 1 , Figure 6 , Figure 7 and Figure 8 The technical solution shown, based on Embodiment 2, further discloses the disassembly and assembly structure of the clamping member 30 on the clamp 24. The specific details are as follows: The engaging and replacing mechanism includes a pressing rod 25 slidably connected to the inner surface of the clamp 24, and a pressing block 26 is mounted on the outer surface of the pressing rod 25. A pressing spring 27 is elastically connected between the pressing rod 25 and the clamp 24. Simultaneously, a limiting member 28 is nested and slidably pressed and connected to the outer surface of the pressing block 26, limiting the sliding of the limiting member 28 within the clamp 24. A locking member 2 is engaged and connected to the outer surface of the limiting member 28. 9. The clamp 29 is nested in the clamp 24, and the clamp 29 has a clamping member 30 installed on its outer surface. The clamp 24 forms an elastic sliding structure with the compression spring 27 and the compression rod 25, and the compression rod 25 forms a sliding compression structure with the limiting member 28 through the compression block 26. The limiting member 28 slides at equal angles with respect to the inner surface of the clamp 24. At the same time, the limiting member 28 forms a limiting engagement structure with the clamp 29 and the clamping member 30, and the clamping member 30 and the clamp 29 form an integrated structure. The clamp 29 and the clamp 24 form a nested structure.

[0044] When using clamp 24 for clamping, the squeezing rod 25 sliding on clamp 24 is controlled to move upward, and the squeezing spring 27 is adjusted by squeezing rod 25 to retract, which drives the squeezing block 26 installed on squeezing rod 25 to slide in clamp 24 in conjunction with the inclined squeezing limiter 28. The limiter 28 is controlled to retract into clamp 24, and the corresponding clamping piece 29 installed on clamp 30 is nested on clamp 24, so squeezing rod 25 can be released. The elasticity of squeezing spring 27 squeezes squeezing rod 25 to slide in clamp 24, thereby controlling squeezing block 26 installed on squeezing rod 25. The inclined squeezing limiter 28 is nested in clamping piece 29, thereby controlling the stability of clamping piece 30 installed on clamping piece 29, preventing clamping piece 30 from disengaging during normal operation, improving the stability of use, and improving the safety of line movement by clamping different protective lines through clamping piece 30.

[0045] And when in use, the lifting motor 3 assembled with the outer shell 2 is started to rotate, driving the synchronous wheel one 4 to control the ratchet wheel 7 assembled with the synchronous wheel two 6 to rotate, and the ratchet wheel 7 is used to prevent reverse rotation through the pawl one 8 and the pawl two 9, cooperating with the gear one 11 coaxially assembled with the ratchet wheel 7, engaging the transmission sprocket one 13 connected with the control gear two 12 to rotate, so as to control the chain 14 wound by the transmission sprocket one 13 to rotate and convey, driving the fixed main body 20 on the lower side of the movable pulley 15 assembled with the chain 14 to adjust the lifting, so as to control the position of the push rod 23 adjusted by the fixed main body 20 and squeeze the adjusting clamp 24 to start clamping the wire, and the clamp 24 is clamped through the clamping piece 30 which can be limited and engaged, when clamping the wire stably, reducing the damage to the wire.

[0046] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overhead power transmission line automatic clamping and tightening device, which is provided with a shell fixing ring (1) positioned at a tower fixing position, a shell body (2) is installed on the lower surface of the shell fixing ring (1), and a lifting motor (3) is installed on the left rear surface of the outer surface of the shell body (2); characterized in that It comprises: a synchronous pulley one (4) is installed on the output shaft of the lifting motor (3), a synchronous belt (5) is rotated on the outer surface of the synchronous pulley one (4), a synchronous pulley two (6) is rotated on the inner surface of the synchronous belt (5), a ratchet (7) is coaxially installed on the outer surface of the synchronous pulley two (6), and the ratchet (7) is provided with an anti-reverse mechanism; a gear one (11) is coaxially rotated on the right side of the outer surface of the ratchet (7), a gear two (12) is meshingly connected on the lower surface of the gear one (11), a transmission sprocket one (13) is coaxially installed on the outer surface of the gear two (12), a chain (14) is wound on the inner surface of the transmission sprocket one (13), a transmission sprocket two (17) is wound on the other side of the chain (14), and a lifting mechanism is arranged on the lower side of the chain (14); The lifting mechanism comprises a movable pulley (15) penetratingly connected on the lower side of the chain (14), a rotating frame (16) is rotated on the inner surface of the movable pulley (15), the chain (14) is wound on the upper side sprocket of the inner surface of the rotating frame (16), a connecting frame one (18) is rotated on the lower surface of the rotating frame (16), a connecting frame two (19) is penetratingly connected on the lower side shaft of the connecting frame one (18), and a fixed main body (20) is rotated on the inner surface lower side of the connecting frame two (19); A transmission screw (21) is rotated on the lower surface of the fixed main body (20) through the wire clamping motor, a sliding nut (22) is threadedly connected on the lower surface of the transmission screw (21), a push rod (23) is rotated on the lower surface of the sliding nut (22), a clamp (24) is slidingly connected on the outer surface of the push rod (23), the clamp (24) is slidingly arranged on the inner surface lower side of the fixed main body (20), and the clamp (24) is provided with a clamping replacement mechanism; The clamping replacement mechanism comprises an extrusion rod (25) slidingly connected on the inner surface of the clamp (24), an extrusion block one (26) is installed on the outer surface of the extrusion rod (25), an extrusion spring two (27) is elastically connected between the extrusion rod (25) and the clamp (24), a limiting piece (28) is slidingly and extrudingly nested on the outer surface of the extrusion block one (26), the limiting piece (28) is limitedly sliding in the clamp (24), a clamping piece (29) is clampingly connected on the outer surface of the limiting piece (28), the clamping piece (29) is nested in the clamp (24), and a clamping piece (30) is installed on the outer surface of the clamping piece (29).

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

3. The automatic line clamping and tightening device for overhead power lines according to claim 1, characterized in that: The anti-reverse mechanism includes a pawl 1 (8) engaged with the lower side of the outer surface of the ratchet (7), and a pawl 2 (9) engaged with the upper side of the outer surface of the ratchet (7), which limits the rotation of the pawl 2 (9) on the inner surface of the outer shell (2), and a compression spring 1 (10) elastically connected between the pawl 2 (9) and the outer shell (2).

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

5. The overhead power line automatic line catching and tightening device according to claim 1, characterized in that: The gear one (11) and the ratchet (7) form a coaxial rotating structure, and the gear one (11) and the gear two (12) form a meshing structure, and the gear two (12) and the transmission sprocket one (13) form a coaxial rotating structure. At the same time, the chain (14) is wound from right to left on the upper side of the transmission sprocket one (13) and the transmission sprocket two (17).

6. The overhead power line automatic line catching and tightening device according to claim 1, characterized in that: The end of the chain (14) and the movable pulley (15) form a through-shaft structure, and the movable pulley (15) and the rotating frame (16) form a nested rotating structure. The chain (14) is wound from right to left around the upper side of the inner surface of the rotating frame (16). At the same time, the rotating frame (16) and the first connecting frame (18) and the second connecting frame (19) form a linkage rotating structure, and the second connecting frame (19) and the fixed body (20) form a rotating structure.

7. The overhead power line automatic line catching and tightening device according to claim 1, characterized in that: The fixed body (20) forms a threaded sliding structure with the sliding nut (22) via the transmission screw (21), and the sliding nut (22) forms a pressing sliding structure with the clamp (24) via the push rod (23), and the clamp (24) is symmetrically arranged about the middle section of the inner surface of the fixed body (20).

8. The overhead power line automatic line catching and tightening device according to claim 1, characterized in that: The clamp (24) forms an elastic sliding structure with the compression spring (27) and the compression rod (25), and the compression rod (25) forms a sliding compression structure with the compression block (26) and the limiting member (28). The limiting member (28) is slidably set about the inner surface of the clamp (24) at equal angles. At the same time, the limiting member (28) forms a limiting engagement structure with the clamping member (30) through the locking member (29). The clamping member (30) and the locking member (29) form an integrated structure. At the same time, the locking member (29) and the clamp (24) form a nested structure.

9. The overhead power line automatic line catching and tightening device according to claim 1, characterized in that, The application further relates to a method for using the automatic wire clamping and tightening device for overhead transmission lines, which comprises the following steps: starting the lifting motor (3) of the shell (2) to rotate, driving the synchronous wheel I (4) to rotate, controlling the rotation of the ratchet wheel (7) assembled with the synchronous wheel II (6), preventing the reverse rotation of the ratchet wheel (7) through the pawl I (8) and the pawl II (9), cooperating with the gear I (11) coaxially assembled with the ratchet wheel (7), meshing to control the rotation of the transmission sprocket I (13) connected with the gear II (12), thereby controlling the rotation transmission of the chain (14) wound around the transmission sprocket I (13), driving the fixed main body (20) on the lower side of the movable pulley (15) assembled with the chain (14) to adjust the lifting, thereby controlling the position of the adjusting push rod (23) of the fixed main body (20) and extruding the adjusting clamp (24) to start clamping the wire, and the clamp (24) is clamped to the wire stably through the clamping piece (30) which can be limitedly clamped, thereby reducing the clamping damage to the wire.

Images