An overhead power line insulating jacket installation apparatus

Abstract

This invention discloses an overhead power line insulation sheath installation device, comprising a sheath guiding and fastening assembly and a sheath feeding assembly. The sheath guiding and fastening assembly includes a main base, a fastening component, a hanging wheel assembly, a guide wheel assembly, an automatic sheath conveying assembly, and a cable clamping device. The hanging wheel assembly includes a hanging wheel bracket and a front hanging wheel. The automatic sheath conveying assembly includes a front power wheel set, a rear power wheel set, and a shaft-distributed hydraulic motor. The sheath feeding assembly includes a feeding bracket, which is equipped with several sheath storage components. Each sheath storage component includes a sheath storage tray and a storage tray shaft rotatably mounted on the feeding bracket via a bracket bearing seat. The end of the storage tray shaft is equipped with a shaft anti-detachment lock. The sheath storage tray includes a storage tray bottom cover and a storage tray top cover, with the bottom cover shaft sleeved onto the storage tray shaft. Through the above structural design, this invention has the advantages of novel structural design, high degree of automation, and high installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of power engineering equipment technology, and in particular to an installation device for insulation sheaths of overhead power lines. Background Technology

[0002] my country has achieved remarkable success in the development of ultra-high voltage (UHV) power grids, and its power engineering construction scale has reached the world's largest. However, such a massive power network inevitably generates new problems. For example, the 1-35kV overhead bare lines used in urban and rural power grids may be located close to forests, buildings, tunnels, rivers, etc., or the safe distance between overhead power lines and other low-voltage lines (communication, fiber optic, broadcasting lines) is difficult to guarantee, leading to a series of safety issues. To address these safety hazards caused by the exposed nature of overhead power lines, it is necessary to encase and fix an insulating sheath structure around the exposed overhead power lines to achieve high-voltage cable insulation protection.

[0003] For insulating sleeves, a snap-on structure is generally adopted. The snap-on insulating sleeve includes a main body, a snap-on part on one side edge of the main body, and a snap-on groove on the other side edge of the main body. When the snap-on insulating sleeve is installed on an overhead power line, the main body of the insulating sleeve is rolled up and wrapped around the outside of the overhead power line, and the snap-on part of the insulating sleeve is inserted into the snap-on groove to achieve the fixing of the insulating sleeve.

[0004] It should be noted that Chinese invention patent application number 201910347602.7, entitled "A Device for Packaging Sheaths for Bare Conductors," substantially discloses an insulating sheath installation device. Specifically, this device for packaging sheaths for bare conductors discloses the following technical solution: a device for packaging sheaths for bare conductors, adapted for the installation of snap-fit ​​insulating sheaths. The device includes a rolling frame, a sheath conveying mechanism, and a sheath installation mechanism. The rolling frame is used to wind snap-fit ​​insulating sheaths of the required length and is connected to the sheath installation mechanism. The sheath conveying mechanism includes a fixed frame and a rotating drum mounted on the fixed frame. The fixed frame is connected to the sheath... The sheath mounting mechanism is connected; the sheath mounting mechanism includes a walking mechanism and a fastening mechanism. The walking mechanism includes a walking wheel set and a walking wheel mounting bracket. The fastening mechanism includes a housing, with two fixing plates on the bottom of the housing. A first pulley and a second pulley are set on the fixing plates. The first pulley and the second pulley are connected by a belt. A bearing is set between the first pulley and the second pulley. A set of pressure rollers is set in the middle of the housing. The pressure rollers are fixed on the pressure roller mounting bracket. The pressure roller mounting bracket is connected to the housing and to the walking wheel mounting bracket. The walking wheel set includes two pulleys. Through these pulleys, the device of the present invention can move on the conductor under the action of external force.

[0005] When the above-mentioned device for packaging sheaths for bare conductors is in operation, the insulating sheath is placed into the rolling frame. A section of the insulating sheath is then fitted onto the bare conductor with the grooved and convex sides facing down. The conductor section with the sheath fitted is placed under the pressure rollers and between the pulleys. The latches on the upper cover are locked. The device is suspended on the bare conductor section without the insulating sheath installed. As the insulating sheath is installed, the rope inside the tow hook is pulled. Due to the action of the pulleys, the device maintains horizontal movement on the conductor and easily engages with the insulating sheath. An engaging device is used, which is equipped with multiple pressure rollers. The force of the pressure rollers makes the insulating sheath engage with the outside of the conductor.

[0006] It should be noted that the above-mentioned device for packaging sheaths for bare conductors has the following drawbacks: when installing sheaths on bare conductors, it is still necessary to pull the entire device along the conductor. The weight of the device itself, combined with the weight of the insulating sheath wrapped around the rolling frame, will cause the conductor to bear a large force during operation, resulting in low safety and time-consuming and labor-intensive pulling and moving operations. Summary of the Invention

[0007] The purpose of this invention is to provide an overhead power line insulation sheath installation device that addresses the shortcomings of existing technologies. This overhead power line insulation sheath installation device has a novel structural design, a high degree of automation, and high installation efficiency.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0009] An overhead power line insulation sheath installation device includes a sheath guiding and fastening assembly and a sheath feeding assembly. The sheath guiding and fastening assembly includes a main base, the main base is equipped with a fastening component, a hanging wheel assembly located at the front end of the fastening component, and a guide wheel assembly located at the rear end of the fastening component. The hanging wheel assembly includes a hanging wheel bracket fastened to the front end of the main base, and a front hanging wheel is rotatably mounted on the upper end of the hanging wheel bracket.

[0010] The main base is also equipped with an automatic sheath conveying assembly and a cable clamping device located at the rear end of the guide wheel assembly. The automatic sheath conveying assembly includes a front power wheel set located between the hanging wheel assembly and the fastening assembly, a rear power wheel set located between the fastening assembly and the guide wheel assembly, and a shaft-distribution hydraulic motor fastened to the main base.

[0011] The front drive wheel assembly includes a front left drive wheel located at the left end of the path through the insulating sheath and a front right drive wheel located at the right end of the path through the insulating sheath. The front left and front right drive wheels are rotatably mounted on the main body base via front wheel axles. The lower end of the main body base is rotatably mounted on a front drive shaft via a bearing seat. The drive end of the shaft-distributed hydraulic motor is driven and connected to the front drive shaft, and the front drive shaft is driven and connected to each front wheel axle via a gear transmission pair.

[0012] The rear drive wheel assembly includes a rear drive shaft rotatably mounted on the main body base via a bearing housing. The drive end of the shaft-distributed hydraulic motor is driven and connected to the rear drive shaft. The rear drive shaft is fitted with a lower left drive wheel and a lower right drive wheel, which can be adjusted left and right respectively. A movable swing arm is pivotally mounted on the main body base next to the rear drive shaft. The upper end of the movable swing arm extends to the upper end of the rear drive shaft. The upper end of the movable swing arm is locked with a left axle and a right axle, which are arranged laterally in the left and right directions respectively. The left axle and the right axle are arranged opposite each other with a gap. The left axle is rotatably fitted with the upper left drive wheel, and the right axle is rotatably fitted with the upper right drive wheel. A swing arm opening and closing drive mechanism is installed between the lower end of the movable swing arm and the main body base.

[0013] The sheath feeding assembly includes a feeding bracket that is securely mounted on the lifting car body of the ladder truck. The feeding bracket is equipped with several sheath storage components spaced apart on both sides. The sheath storage components include a sheath storage tray for holding insulating sheath rolls and a storage tray shaft that is rotatably mounted on the feeding bracket via a bracket bearing seat. The end of the storage tray shaft is equipped with a shaft anti-detachment lock. The sheath storage tray includes a storage tray bottom cover and a storage tray top cover that is closable and mounted on the storage tray bottom cover. A bottom cover bushing is securely mounted in the middle of the storage tray bottom cover. The bottom cover bushing is fitted onto the storage tray shaft, and the bottom cover bushing is limited to the storage tray shaft by the shaft anti-detachment lock.

[0014] The drive end of the axial flow hydraulic motor is equipped with an active synchronous pulley, the front drive shaft is equipped with a front driven synchronous pulley, the rear drive shaft is equipped with a rear driven synchronous pulley, the active synchronous pulley is connected to the front driven synchronous pulley via the front synchronous belt, and the active synchronous pulley is connected to the rear driven synchronous pulley via the rear synchronous belt.

[0015] The active timing pulley is fastened with a wrench connector, which is coaxially arranged with the active timing pulley.

[0016] Among them, anti-rotation key structures are respectively installed between the lower left power wheel and the rear drive shaft, and between the lower right power wheel and the rear drive shaft. The lower left power wheel and the lower right power wheel are respectively provided with radially outward-opening internal threaded holes, and locking screws are respectively screwed into the internal threaded holes of the lower left power wheel and the lower right power wheel.

[0017] The fastening assembly includes a left fastening wheel group and a right fastening wheel group located at the right end of the left fastening wheel group. A fastening channel is formed between the left fastening wheel group and the right fastening wheel group to allow the insulating sheath to pass through from back to front. The width of the fastening channel gradually decreases from back to front.

[0018] The left-side fastening wheel assembly includes several left-side fastening wheels arranged at intervals and rotatably mounted on the main body base, and the right-side fastening wheel assembly includes several right-side fastening wheels arranged at intervals and rotatably mounted on the main body base.

[0019] The main base is equipped with a lifting and adjusting bracket whose upper end extends above the left and right locking wheel groups. The upper end of the lifting and adjusting bracket is rotatably mounted with a number of auxiliary pressure rollers arranged sequentially from front to back.

[0020] The guide wheel assembly includes a guide wheel bracket that is fastened to the main body base. The guide wheel bracket is equipped with several guide wheel groups arranged sequentially from front to back at intervals. Each guide wheel group includes two sheath guide wheels with an intermediate spacing that can be adaptively adjusted according to the size and specifications of the insulating sheath.

[0021] The swing arm opening and closing drive mechanism includes a base connecting shaft mounted on the main body base and a swing arm connecting shaft disposed at the lower end of the movable swing arm. The base connecting seat and the swing arm connecting shaft are arranged parallel to each other at intervals.

[0022] A first connecting rod and a second connecting rod are installed between the base connecting shaft and the swing arm connecting shaft. The fixed end of the first connecting rod is pivotally connected to the base connecting shaft, the fixed end of the second connecting rod is pivotally connected to the swing arm connecting shaft, and the free end of the first connecting rod is hinged to the free end of the second connecting rod.

[0023] The first link is securely fitted with an opening and closing operating handle; when the opening and closing operating handle is swung to the open position, the movable swing arm is in the open state; when the opening and closing operating handle is swung to the closed position, the movable swing arm is in the closed state.

[0024] The bottom cover of the storage tray is screwed in with at least two coil positioning rods that protrude and extend toward the top cover of the storage tray respectively, and each coil positioning rod is provided with a number of locking grooves arranged at intervals along the axial direction.

[0025] The storage tray cover has through-holes for each coil positioning rod, and elastic locking fasteners are installed on the outer side of the storage tray cover at the positions of each cover positioning hole.

[0026] When the storage tray cover is closed, each coil positioning rod passes through the corresponding cover positioning hole, and the elastic locking fastener is locked in one of the locking grooves of the coil positioning rod.

[0027] The feeding bracket is equipped with a damping adjustment mechanism corresponding to the rotating shaft of the storage tray. The damping adjustment mechanism includes a fixing block that is fastened to the feeding bracket. The fixing block has a shaft hole corresponding to the rotating shaft of the storage tray. The end of the rotating shaft of the storage tray is rotatably fitted into the shaft hole of the fixing block.

[0028] The upper surface of the fixed block is provided with an adjustment hole that communicates with the shaft hole. The adjustment hole is fitted with a pressing block, an adjusting spring, and a handle screw arranged from bottom to top. The lower end of the pressing block abuts against the rotating shaft of the storage tray, the lower end of the adjusting spring abuts against the upper end of the pressing block, and the handle screw is screwed into the adjustment hole, with the upper end of the adjusting spring abutting against the handle screw.

[0029] An auxiliary spring and a top ring are fitted around the outer periphery of the storage tray shaft between the bottom cover bushing and the support bearing seat. One end of the auxiliary spring abuts against the support bearing seat, and the other end of the auxiliary spring abuts against the top ring. The top ring is in contact with the bottom cover bearing.

[0030] Compared with existing technologies, the present invention has the following advantages: Specifically, during the insulation sheath packaging process of the present invention, the axial flow hydraulic motor drives the front and rear power wheel sets to operate synchronously. The front and rear power wheel sets cooperate to supply and convey the continuous insulation sheaths forward, so that the continuous insulation sheaths pass through the fastening component positions to achieve automatic and continuous fastening of the insulation sheaths. The fastened insulation sheaths are then pushed forward along the cable to achieve automatic cable insulation sheath packaging. Therefore, compared with existing technologies, the overhead power line insulation sheath installation equipment of the present invention has the advantages of novel structural design, high degree of automation, and high installation efficiency. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0032] Figure 1 This is a schematic diagram of the sheath guide fastening assembly of the present invention.

[0033] Figure 2 This is a schematic diagram of the sheath guide fastening assembly of the present invention from another perspective.

[0034] Figure 3This is a partial structural schematic diagram of the sheath guide fastening assembly of the present invention.

[0035] Figure 4 This is a partial structural schematic diagram of the sheath guide fastening assembly of the present invention from another perspective.

[0036] Figure 5 This is a schematic diagram of the fastening assembly of the present invention.

[0037] Figure 6 This is a structural schematic diagram of the fastening component of the present invention from another perspective.

[0038] Figure 7 This is a schematic diagram of the rear drive wheel assembly of the present invention.

[0039] Figure 8 This is a structural schematic diagram of the rear drive wheel assembly from another perspective of the present invention.

[0040] Figure 9 This is a structural schematic diagram of the rear power wheel assembly of the present invention from another perspective.

[0041] Figure 10 This is a cross-sectional schematic diagram of the rear drive wheel assembly of the present invention.

[0042] Figure 11 This is a schematic diagram of the guide wheel assembly of the present invention.

[0043] Figure 12 This is a schematic diagram of the sheath feeding assembly of the present invention.

[0044] Figure 13 This is an exploded view of the sheath feeding assembly of the present invention.

[0045] Figure 14 This is a cross-sectional schematic diagram of the sheath storage assembly of the present invention.

[0046] Figure 15 This is a cross-sectional view of another location of the sheath storage assembly of the present invention.

[0047] exist Figures 1 to 15 This includes:

[0048] 1-Main base; 2-Snapping assembly; 21-Snapping channel; 22-Left snapping wheel; 23-Right snapping wheel; 24-Lifting adjustment bracket; 25-Auxiliary pressure roller; 3-Hanging wheel assembly; 31-Hanging wheel bracket; 32-Front hanging wheel; 4-Guide wheel assembly; 41-Guide wheel bracket; 42-Guide wheel group; 421-Sheathed guide wheel; 5-Cable clamping device; 6-Front power wheel group; 61-Front left power wheel; 62-Front right power wheel; 63-Front end axle; 64-Front end drive shaft; 65-Gear transmission pair; 7-Rear drive wheel set; 71-Rear end drive shaft; 72-Lower left drive wheel; 73-Lower right drive wheel; 74-Pivot; 75-Moving swing arm; 751-Lock; 761-Left end axle; 762-Right end axle; 77-Upper left drive wheel; 78-Upper right drive wheel; 79-Swing arm opening and closing drive mechanism; 791-Base connecting shaft; 792-Swing arm Connecting shaft; 793-First connecting rod; 794-Second connecting rod; 795-Opening / closing operating handle; 710-Internal threaded hole; 81-Shaft distribution hydraulic motor; 82-Driving synchronous belt pulley; 83-Front-end driven synchronous belt pulley; 84-Rear-end driven synchronous belt pulley; 85-Front-end synchronous belt; 86-Rear-end synchronous belt; 87-Wrench connector; 91-Feeding bracket; 92-Insulating sheathed roll material; 93-Sheathed storage tray; 931-Storage tray bottom cover; 9311-Bottom 932-Storage tray cover; 933-Roll positioning rod; 9331-Locking groove; 934-Elastic locking fastener; 94-Bearing seat of bracket; 95-Storage tray shaft; 96-Shaft anti-detachment lock; 97-Damping adjustment mechanism; 971-Fixing block; 9711-Adjusting hole; 972-Pressure block; 973-Adjusting spring; 974-Handle screw; 981-Auxiliary spring; 982-Top ring; 100-Cable; 101-Insulating sheath. Detailed Implementation

[0049] The present invention will now be described in conjunction with specific embodiments.

[0050] Example 1, as Figures 1 to 4 As shown, an overhead power line insulation sheath installation device includes a sheath guiding and fastening assembly and a sheath feeding assembly. The sheath guiding and fastening assembly includes a main base 1, the main base 1 is equipped with a fastening component 2, a hanging wheel assembly 3 located at the front end of the fastening component 2, and a guide wheel assembly 4 located at the rear end of the fastening component 2. The hanging wheel assembly 3 includes a hanging wheel bracket 31 fastened to the front end of the main base 1, and a front hanging wheel 32 is rotatably mounted on the upper end of the hanging wheel bracket 31.

[0051] Among them, such as Figures 1 to 4As shown, the main base 1 is also equipped with an automatic sheath conveying assembly and a cable clamping device 5 located at the rear end of the guide wheel assembly 4. The automatic sheath conveying assembly includes a front power wheel set 6 located between the hanging wheel assembly 3 and the fastening assembly 2, a rear power wheel set 7 located between the fastening assembly 2 and the guide wheel assembly 4, and a shaft-distributing hydraulic motor 81 fastened to the main base 1.

[0052] Furthermore, such as Figure 5 and Figure 6 As shown, the front drive wheel assembly 6 includes a front left drive wheel 61 located on the left end of the path through the insulating sheath 101 and a front right drive wheel 62 located on the right end of the path through the insulating sheath 101. The front left drive wheel 61 and the front right drive wheel 62 are rotatably mounted on the main body base 1 via front wheel axles 63. The lower end of the main body base 1 is rotatably mounted on a front drive shaft 64 via a bearing seat. The drive end of the shaft-distribution hydraulic motor 81 is drivenly connected to the front drive shaft 64, and the front drive shaft 64 is drivenly connected to each front wheel axle 63 via a gear transmission pair 65.

[0053] Furthermore, such as Figures 7 to 10 As shown, the rear drive wheel assembly 7 includes a rear drive shaft 71 rotatably mounted on the main body base 1 via a bearing housing. The drive end of the shaft-distribution hydraulic motor 81 is drivenly connected to the rear drive shaft 71. The rear drive shaft 71 is fitted with a lower left drive wheel 72 and a lower right drive wheel 73, whose positions can be adjusted left and right respectively. A movable swing arm 75 is hinged to the side of the rear drive shaft 71 via a pivot 74. The upper end of the movable swing arm 75 extends to the upper side of the rear drive shaft 71. The upper end of the swing arm 75 is secured with a left axle 761 and a right axle 762, which are arranged laterally along the left and right directions, respectively, by a lock 751. Each lock 751 is screwed and fastened to the upper end of the movable swing arm 75. The left axle 761 and the right axle 762 are arranged opposite each other at intervals. The left axle 761 is rotatably fitted with the upper left drive wheel 77, and the right axle 762 is rotatably fitted with the upper right drive wheel 78. A swing arm opening and closing drive mechanism 79 is installed between the lower end of the movable swing arm 75 and the main body base 1. It should be explained that since the left axle 761 and the right axle 762 are respectively installed on the movable swing arm 75 by corresponding locks 751, when the locks are loosened, the left axle 761 and the right axle 762 can be adjusted to the left and right positions; when the locks are locked, the left axle 761 and the right axle 762 are fastened to the desired positions.

[0054] In addition, such as Figures 12 to 15As shown, the sheath feeding assembly includes a feeding bracket 91 that is fastened to the lifting car body of the ladder truck. The feeding bracket 91 is equipped with several sheath storage components spaced apart on both sides. The sheath storage components include a sheath storage tray 93 for placing insulating sheath rolls 92 and a storage tray shaft 95 that is rotatably mounted on the feeding bracket 91 via a bracket bearing seat 94. The end of the storage tray shaft 95 is equipped with a shaft anti-detachment lock 96. The sheath storage tray 93 includes a storage tray bottom cover 931 and a storage tray top cover 932 that is closable and mounted on the storage tray bottom cover 931. A bottom cover bushing 9311 is fastened to the middle position of the storage tray bottom cover 931. The bottom cover bushing 9311 is fitted onto the storage tray shaft 95, and the bottom cover bushing 9311 is limited to the storage tray shaft 95 by the shaft anti-detachment lock 96.

[0055] It should be noted that the steps for installing insulation sheath 101 using the overhead power line insulation sheath installation equipment include:

[0056] Step a: Place the required size and specifications of the insulation sheath roll 92 according to the diameter of the cable 100 into the sheath storage tray 93, and install the sheath storage tray 93 containing the insulation sheath roll 92 onto the storage tray shaft 95.

[0057] Step b: Adjust the positions of the lower left drive wheel 72, lower right drive wheel 73, upper left drive wheel 77, and upper right drive wheel 78 according to the width of the main body of the insulating sleeve 101 used, so as to ensure that when the rear drive wheel group 7 transports the insulating sleeve 101, the lower left drive wheel 72, lower right drive wheel 73, upper left drive wheel 77, and upper right drive wheel 78 are respectively located between the buckle part and the buckle groove part of the insulating sleeve 101;

[0058] Step c: Clamp the cable 100 to which the insulating sheath 101 is to be installed with the cable clamping device 5, and hang the front hanging wheel 32 on the cable 100. Connect the cable 100 and the main body base 1 with the fall protection safety rope. During this process, the cable 100 passes through the gap between the lower left power wheel 72 and the lower right power wheel 73, the fastening component 2, and the gap between the front left power wheel 61 and the front right power wheel 62.

[0059] Step d: Operate the swing arm opening and closing drive mechanism 79 and make the upper end of the movable swing arm 75 swing upward. At this time, the upper left power wheel 77 retracts from the lower left power wheel 72, and the upper right power wheel 78 retracts from the lower right power wheel 73. Pull the insulating sleeve 101 out from the sleeve storage tray 93 and keep the insertion part and the buckle groove part of the insulating sleeve 101 facing downward. Then, the end of the insulating sleeve 101 passes from back to front through the guide wheel assembly 4, the rear power wheel group 7, the fastening assembly 2 and the front power wheel group 6 in sequence. The insulating sleeve 101 passes above the cable 100. The end of the insulating sleeve 101 is in the fastening state at the fastening assembly 2 and the front power wheel group 6.

[0060] Step e: After the end of the insulating sleeve 101 is pulled, operate the swing arm opening and closing drive mechanism 79 and make the upper end of the movable swing arm 75 swing downward. The lower left power wheel 72 and the lower right power wheel 73 contact the lower surface of the main body of the insulating sleeve 101, and the upper left power wheel 77 and the upper right power wheel 78 press against the upper surface of the main body of the insulating sleeve 101. At this time, the lower left power wheel 72 and the upper left power wheel 77 form the left conveying roller group, and the lower right power wheel 73 and the upper right power wheel 78 form the right conveying roller group.

[0061] Step f: Start the shaft distribution hydraulic motor 81. The shaft distribution hydraulic motor 81 drives the front drive shaft 64 and the rear drive shaft 71 to rotate. The front drive shaft 64 drives the power wheel 62 on the left and right sides of the front end to rotate through the gear transmission pair 65. The rear drive shaft 71 drives the lower left power wheel 72 and the lower right power wheel 73 to rotate synchronously. At this time, the front power wheel set 6 and the rear power wheel set 7 cooperate to realize the continuous forward conveying of the insulating sleeve 101. During this process, the insulating sleeve 101 continuously completes the fastening action, and the fastened insulating sleeve 101 is pushed forward along the cable 100 to realize the automatic packaging of the cable 100 with the insulating sleeve 101. The fastened insulating sleeve 101 is pushed forward and passes between the front hanging wheel 32 and the cable 100. At this time, the front hanging wheel 32 rotates adaptively.

[0062] It should be noted that in this embodiment, the shaft-distribution hydraulic motor 81 is used as the power source, and the shaft-distribution hydraulic motor 81 drives the front power wheel set 6 and the rear power wheel set 7 to move synchronously to realize the automatic conveying of the insulating sheath 101. The shaft-distribution hydraulic motor 81 has the advantages of small size and light weight. On the one hand, this can improve the compactness of the sheath guide fastening assembly structure, and on the other hand, it can effectively reduce the weight of the sheath guide fastening assembly, thereby reducing the weight of the cable 100 suspension and improving the safety of operation.

[0063] It should be further pointed out that, since the lower left drive wheel 72 and the lower right drive wheel 73 can be adjusted left and right along the rear drive shaft 71 respectively, and the upper left drive wheel 77 can be adjusted left and right along the left wheel axle 761, and the upper right drive wheel 78 can be adjusted left and right along the right wheel axle 762, the rear drive wheel group 7 of this embodiment can adaptively adjust the positions of the lower left drive wheel 72, the lower right drive wheel 73, the upper left drive wheel 77, and the upper right drive wheel 78 according to the width of the main body of the insulating sheath 101, thus having the advantage of strong adaptability.

[0064] Furthermore, for the sheath feeding assembly in this embodiment, several spaced-apart sheath storage components can meet the placement requirements of multiple rolls of insulating sheath material 92. When the cable 100 is packaged into a rolled sheath 101, the position of the required sheath storage components is adjusted by operating the lifting platform of the ladder truck, so that the insulating sheath 101 is accurately aligned and supplied to the guide wheel assembly 4. The storage tray cover 932 is detachably installed on the storage tray bottom cover 931 to meet the operational requirements of rapid material changing of the insulating sheath rolls 90, thereby improving operational efficiency.

[0065] In summary, the overhead power line insulation sheath installation equipment of this embodiment has the advantages of novel structural design, high degree of automation and high installation efficiency through the above structural design.

[0066] Example 2, as Figure 1 , Figure 3 as well as Figure 4 As shown, the difference between this embodiment 2 and embodiment 1 is that: the drive end of the shaft distribution hydraulic motor 81 is equipped with an active synchronous pulley 82, the front drive shaft 64 is equipped with a front driven synchronous pulley 83, the rear drive shaft 71 is equipped with a rear driven synchronous pulley 84, the active synchronous pulley 82 is connected to the front driven synchronous pulley 83 through the front synchronous belt 85, and the active synchronous pulley 82 is connected to the rear driven synchronous pulley 84 through the rear synchronous belt 86.

[0067] The active synchronous pulley 82 is fastened with a wrench connector 87, which is coaxially arranged with the active synchronous pulley 82.

[0068] In this second embodiment, the front drive shaft 64 and the rear drive shaft 71 are driven to rotate by the axial flow hydraulic motor 81, thereby making the front power wheel set 6 and the rear power wheel set 7 move synchronously.

[0069] It should be noted that when the electric wrench is required to provide power, the shaft-distribution hydraulic motor 81 is in a stopped state. The electric wrench sleeve is connected to the wrench interface, and the electric wrench can be used as a power source to realize the automatic packaging of the cable 100 insulation sheath 101.

[0070] Example 3, as Figure 9 and Figure 10 As shown, the difference between this embodiment three and embodiment one is that: anti-rotation key structures are respectively installed between the lower left power wheel 72 and the rear drive shaft 71, and between the lower right power wheel 73 and the rear drive shaft 71. The lower left power wheel 72 and the lower right power wheel 73 are respectively provided with radially outward-opening internal threaded holes 710. Locking screws are respectively screwed into the internal threaded holes 710 of the lower left power wheel 72 and the lower right power wheel 73.

[0071] During the adaptive adjustment of the left and right positions of the lower left drive wheel 72 and the lower right drive wheel 73, the operator only needs to loosen the corresponding locking screws first, and then move the lower left drive wheel 72 or the lower right drive wheel 73 along the corresponding anti-rotation key structure; after the lower left drive wheel 72 or the lower right drive wheel 73 has been adjusted to the left and right position, tighten the corresponding locking screws to lock the lower left drive wheel 72 or the lower right drive wheel 73 in the required position.

[0072] It should be noted that during the conveying of the insulating sheath 101, the upper left drive wheel 77 and the lower left drive wheel 72 are aligned and together form a conveying roller assembly structure, and the upper right drive wheel 78 and the lower right drive wheel 73 are aligned and together form a conveying roller assembly structure. Since the left axle 761 and the right axle 762 are respectively locked and fixed to the movable swing arm 75 by corresponding locks 751, during the adaptive adjustment of the left and right positions of the lower left drive wheel 72 and the lower right drive wheel 73, the operator can also adaptively adjust the left and right positions of the upper left drive wheel 77 and the upper right drive wheel 78. Specifically, during adjustment, simply loosen the locks 751 and adaptively move the position of the left axle 761 or the right axle 762 in the left and right direction. After the left axle 761 or the right axle 762 has been adjusted to the left and right position, the locks 751 can be tightened again.

[0073] Example 4, as Figures 1 to 6 As shown, the difference between this embodiment four and embodiment one is that the fastening assembly 2 includes a left fastening wheel group and a right fastening wheel group located on the right end of the left fastening wheel group. A fastening channel 21 is formed between the left fastening wheel group and the right fastening wheel group for the insulating sheath 101 to pass through from back to front. The width of the fastening channel 21 gradually decreases from back to front.

[0074] The left-side fastening wheel assembly includes several left-side fastening wheels 22 arranged at intervals and rotatably mounted on the main body base 1, while the right-side fastening wheel assembly includes several right-side fastening wheels 23 arranged at intervals and rotatably mounted on the main body base 1.

[0075] During the process of fastening the insulating sleeve 101 by the fastening assembly 2, the insulating sleeve 101 passes through the fastening channel 21 from back to front under the traction drive of the front power wheel set 6 and the rear power wheel set 7. As the fastening channel 21 gradually narrows from back to front, during this process, the left fastening wheel set presses against the insulating sleeve 101 to the right, and the right fastening set presses against the insulating sleeve 101 to the left, thereby making the insertion part of the insulating sleeve 101 fasten with the fastening groove part.

[0076] Example 5, as Figures 1 to 6 As shown, the difference between this embodiment 5 and embodiment 4 is that the main body base 1 is equipped with a lifting adjustment bracket 24 whose upper end extends to the top of the left and right locking wheel groups. The upper end of the lifting adjustment bracket 24 is rotatably mounted with a number of auxiliary pressure rollers 25 arranged sequentially from front to back.

[0077] During the process of the insulating sleeve 101 passing through the fastening channel 21, several auxiliary pressure rollers 25 can press the insulating sleeve 101 downwards to ensure that the fastening position of the insulating sleeve 101 passes through the fastening channel 21 accurately, so as to ensure the stability and reliability of the fastening operation.

[0078] Furthermore, the auxiliary pressure roller 25 is installed at the upper end of the lifting and adjusting bracket 24, which allows the height of the auxiliary pressure roller 25 to be adaptively adjusted according to the size and specifications of the insulating sleeve 101.

[0079] For the left guide wheel 24 and the right guide wheel 25 in this embodiment, their positions can be adjusted adaptively to ensure that the insulating sleeve 101 accurately enters the fastening channel 21 of the fastening assembly 2 through the cooperation of the left guide wheel 24 and the right guide wheel 25, thereby ensuring that the insulating sleeve 101 can be stably fastened.

[0080] Example 6, as Figure 11 As shown, the difference between this sixth embodiment and the first embodiment is that the guide wheel assembly 4 includes a guide wheel bracket 41 that is fastened to the main body base 1. The guide wheel bracket 41 is equipped with a plurality of guide wheel groups 42 arranged sequentially from front to back. Each guide wheel group 42 includes two sheath guide wheels 421 with an intermediate spacing that can be adaptively adjusted according to the size and specifications of the insulating sheath 101.

[0081] Example 7, as Figure 7 and Figure 8 As shown, the difference between this embodiment seven and embodiment one is that the swing arm opening and closing drive mechanism 79 includes a base connecting shaft 791 installed on the main body base 1 and a swing arm connecting shaft 792 disposed at the lower end of the movable swing arm 75. The base connecting shaft and the swing arm connecting shaft 792 are arranged in parallel and spaced apart.

[0082] Among them, a first connecting rod 793 and a second connecting rod 794 are installed between the base connecting shaft 791 and the swing arm connecting shaft 792. The fixed end of the first connecting rod 793 is pivotally connected to the base connecting shaft 791, the fixed end of the second connecting rod 794 is pivotally connected to the swing arm connecting shaft 792, and the free end of the first connecting rod 793 is hinged to the free end of the second connecting rod 794.

[0083] In addition, the first link 793 is fastened with an opening and closing operating handle 795.

[0084] It should be noted that when the opening / closing operating handle 795 swings to the open position, the opening / closing operating handle 795 pulls the free end of the first connecting rod 793 to swing downwards, and through the second connecting rod 794 pulls the lower end of the movable swing arm 75 to swing downwards. During this process, the upper end of the movable swing arm 75 swings upwards to the open position. When the opening / closing operating handle 795 swings to the closed position, the opening / closing operating handle 795 pulls the free end of the first connecting rod 793 to swing upwards, and through the second connecting rod 794 pushes the lower end of the movable swing arm 75 to swing upwards. During this process, the upper end of the movable swing arm 75 swings downwards to the closed position.

[0085] Example 8, as Figures 12 to 15 As shown, the difference between this embodiment eight and embodiment one is that: the bottom cover 931 of the storage tray is screwed in with at least two coil positioning rods 933 that protrude and extend toward the side of the top cover 932 of the storage tray respectively, and each coil positioning rod 933 is provided with a plurality of locking grooves 9331 arranged sequentially at intervals along the axial direction.

[0086] The storage tray cover 932 has through-holes for each of the coil positioning rods 933, and elastic locking fasteners 934 are installed on the outer side of the storage tray cover 932 at the positions of each cover positioning hole.

[0087] It should be noted that when the storage tray cover 932 is in the closed state, each coil positioning rod 933 passes through the corresponding cover positioning hole, and the elastic locking element 934 is locked in one of the locking grooves 9331 of the coil positioning rod 933. In this embodiment, the locking position of the storage tray cover 932 is adapted to the width of the insulating sheath 101, so as to ensure that the sheath storage tray 93 can stably load and place the insulating sheath coil 92.

[0088] It should be explained that when placing the insulating sheath roll 92, the insulating sheath roll 92 is located outside the roll positioning rod 933, and the roll positioning rod 933 can position the insulating sheath roll 92.

[0089] Example 9, as Figures 13 to 15As shown, the difference between this embodiment nine and embodiment one is that: the feeding bracket 91 is equipped with a damping adjustment mechanism 97 corresponding to the storage tray rotating shaft 95. The damping adjustment mechanism 97 includes a fixing block 971 that is fastened to the feeding bracket 91. The fixing block 971 has a shaft hole corresponding to the storage tray rotating shaft 95. The end of the storage tray rotating shaft 95 is rotatably fitted into the shaft hole of the fixing block 971.

[0090] The upper surface of the fixing block 971 is provided with an adjustment hole 9711 that communicates with the shaft hole. The adjustment hole 9711 is fitted with a pressing block 972, an adjusting spring 973, and a handle screw 974 arranged sequentially from bottom to top. The lower end of the pressing block 972 abuts against the rotating shaft 95 of the storage tray, the lower end of the adjusting spring 973 abuts against the upper end of the pressing block 972, and the handle screw 974 is screwed into the adjustment hole 9711, with the upper end of the adjusting spring 973 abutting against the handle screw 974.

[0091] During the automatic packaging of the insulating sheath 101 by the sheath guide fastening assembly, the traction force generated by the automatic sheath conveying component causes the insulating sheath roll 92 to continuously release the insulating sheath 101. The damping adjustment mechanism 97 of this embodiment can adaptively adjust the resistance when the sheath storage tray 93 rotates to ensure that the insulating sheath 101 can be released stably and continuously.

[0092] When adjusting the rotational resistance of the sheath storage tray 93, simply loosen or tighten the handle screw 974 manually to allow the handle screw 974 to move vertically within the adjustment hole 9711 of the fixing block 971. When the handle screw 974 is tightened, the adjusting spring 973 is further compressed, which increases the pressure force of the pressing block 972 on the storage tray shaft 95, thereby increasing the friction between the pressing block 972 and the storage tray shaft 95, and thus increasing the resistance. When the handle screw 974 is turned outward, the adjusting spring 973 is loosened, which reduces the pressure force of the pressing block 972 on the storage tray shaft 95, thereby reducing the friction between the pressing block 972 and the storage tray shaft 95, and thus reducing the resistance.

[0093] Example 10, as follows Figure 14 and Figure 15 As shown, the difference between this embodiment ten and embodiment one is that: an auxiliary spring 981 and a top ring 982 are fitted around the outer periphery of the storage tray shaft 95 between the bottom cover bushing 9311 and the bracket bearing seat 94. One end of the auxiliary spring 981 abuts against the bracket bearing seat 94, and the other end of the auxiliary spring 981 abuts against the top ring 982. The top ring 982 is in contact with the bottom cover bearing.

[0094] When the sheath storage tray 93 loaded with insulating sheath roll 92 is placed on the storage tray shaft 95, the storage tray shaft 95 limits the sheath storage tray 93 through the shaft anti-detachment latch 96 at its end position to prevent the sheath storage tray 93 from detaching from the storage tray shaft 95. After the sheath storage tray 93 loaded with insulating sheath roll 92 is placed, the elastic force of the auxiliary spring 981 causes the top ring 982 to elastically hold the bottom cover bearing, so that the bottom cover bearing is abutted against and limited to the shaft anti-detachment latch 96 of the storage tray shaft 95. The elastic holding structure composed of the auxiliary spring 981 and the top ring 982 allows the storage tray shaft 95 to be adapted to sheath storage trays 93 of different widths. During the process of pulling out the insulating sheath 101, the above-mentioned elastic holding structure can effectively prevent the sheath storage tray 93 from axial displacement, thereby improving the stability and reliability of the feeding.

[0095] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. An overhead power line insulation sheath installation device, comprising a sheath guiding and fastening assembly and a sheath feeding assembly, wherein the sheath guiding and fastening assembly comprises a main base (1), the main base (1) is equipped with a fastening component (2), a hanging wheel assembly (3) located at the front end of the fastening component (2), and a guide wheel assembly (4) located at the rear end of the fastening component (2), wherein the hanging wheel assembly (3) comprises a hanging wheel bracket (31) fastened to the front end of the main base (1), and a front hanging wheel (32) is rotatably mounted on the upper end of the hanging wheel bracket (31); characterized in that The main base (1) is also equipped with an automatic sheath conveying assembly and a cable clamping device (5) located at the rear end of the guide wheel assembly (4). The automatic sheath conveying assembly includes a front power wheel assembly (6) located between the hanging wheel assembly (3) and the fastening assembly (2), a rear power wheel assembly (7) located between the fastening assembly (2) and the guide wheel assembly (4), and an axial flow hydraulic motor (81) fastened to the main base (1). The front power wheel assembly (6) includes a front left power wheel (61) located on the left side of the path through the insulating sheath (101) and a front right power wheel (62) located on the right side of the path through the insulating sheath (101). The front left power wheel (61) and the front right power wheel (62) are rotatably mounted on the main body base (1) via front wheel axles (63). The lower end of the main body base (1) is rotatably mounted on a front drive shaft (64) via a bearing seat. The drive end of the shaft distribution hydraulic motor (81) is driven to the front drive shaft (64), and the front drive shaft (64) is driven to the front wheel axles (63) via a gear transmission pair (65). The rear drive wheel assembly (7) includes a rear drive shaft (71) rotatably mounted on the main body base (1) via a bearing seat. The drive end of the shaft-distribution hydraulic motor (81) is drivenly connected to the rear drive shaft (71). The rear drive shaft (71) is fitted with a lower left drive wheel (72) and a lower right drive wheel (73) whose positions can be adjusted left and right respectively. The main body base (1) is hinged to the side of the rear drive shaft (71) via a pivot (74) with a movable swing arm (75). The upper end of the movable swing arm (75) extends to the upper end of the rear drive shaft (71). The upper end of the movable swing arm (75) is locked with a lock that allows it to move left and right respectively. The left axle (761) and right axle (762) are arranged laterally, with the left axle (761) and right axle (762) arranged opposite each other at intervals. The left axle (761) is fitted with the upper left drive wheel (77), and the right axle (762) is fitted with the upper right drive wheel (78). When the lock is loosened, the left axle (761) and right axle (762) can be adjusted to the left and right positions. When the lock is locked, the left axle (761) and right axle (762) are fixed in the required position. The lower end of the movable swing arm (75) is equipped with a swing arm opening and closing drive mechanism (79) between it and the main body base (1). The sheath feeding assembly includes a feeding bracket (91) securely mounted to the lifting car body of the ladder truck. The feeding bracket (91) is equipped with several sheath storage components spaced apart on both sides. The sheath storage components include a sheath storage tray (93) for placing insulating sheath rolls (92) and a storage tray shaft (95) rotatably mounted on the feeding bracket (91) via a bracket bearing seat (94). The end of the storage tray shaft (95) is equipped with a shaft anti-detachment device. Lock (96); The protective storage tray (93) includes a storage tray bottom cover (931) and a storage tray top cover (932) that can be opened and closed and installed on the storage tray bottom cover (931). A bottom cover bushing (9311) is fastened to the middle position of the storage tray bottom cover (931). The bottom cover bushing (9311) is fitted onto the storage tray shaft (95), and the bottom cover bushing (9311) is limited to the storage tray shaft (95) by the shaft anti-detachment lock (96). The drive end of the axial flow hydraulic motor (81) is equipped with an active synchronous pulley (82), the front drive shaft (64) is equipped with a front driven synchronous pulley (83), and the rear drive shaft (71) is equipped with a rear driven synchronous pulley (84). The active synchronous pulley (82) is connected to the front driven synchronous pulley (83) through the front synchronous belt (85), and the active synchronous pulley (82) is connected to the rear driven synchronous pulley (84) through the rear synchronous belt (86). A wrench connector (87) is fastened to the active synchronous pulley (82), and the wrench connector (87) is coaxially arranged with the active synchronous pulley (82). The fastening assembly (2) includes a left fastening wheel group and a right fastening wheel group located on the right side of the left fastening wheel group. A fastening channel (21) is formed between the left fastening wheel group and the right fastening wheel group for the insulating sheath (101) to pass through from back to front. The width of the fastening channel (21) gradually decreases from back to front. The left fastening wheel group includes a number of left fastening wheels (22) arranged in sequence and rotatably mounted on the main body base (1). The right fastening wheel group includes a number of right fastening wheels (23) arranged in sequence and rotatably mounted on the main body base (1). The main body base (1) is equipped with a lifting adjustment bracket (24) whose upper end extends above the left fastening wheel group and the right fastening wheel group. A number of auxiliary pressure rollers (25) arranged in sequence from front to back are rotatably mounted on the upper end of the lifting adjustment bracket (24). The swing arm opening and closing drive mechanism (79) includes a base connecting shaft (791) mounted on the main body base (1) and a swing arm connecting shaft (792) located at the lower end of the movable swing arm (75). The base connecting shaft (791) and the swing arm connecting shaft (792) are arranged parallel to each other. A first connecting rod (793) and a second connecting rod (794) are installed between the base connecting shaft (791) and the swing arm connecting shaft (792). The fixed end of the first connecting rod (793) is pivotally connected to the base connecting shaft. (791) The fixed end of the second link (794) is pivotally connected to the swing arm connecting shaft (792), and the free end of the first link (793) is hinged to the free end of the second link (794); the first link (793) is fastened with an opening and closing operating handle (795); when the opening and closing operating handle (795) swings to the open position, the movable swing arm (75) is in the open state; when the opening and closing operating handle (795) swings to the closed position, the movable swing arm (75) is in the closed state. The steps for installing the insulation sheath (101) on this overhead power line insulation sheath installation equipment include: Step a: Place the required size of insulation sheath roll (92) according to the diameter of the cable (100) into the sheath storage tray (93), and install the sheath storage tray (93) containing the insulation sheath roll (92) onto the storage tray shaft (95); Step b: Adjust the positions of the lower left power wheel (72), lower right power wheel (73), upper left power wheel (77), and upper right power wheel (78) according to the width of the main body of the insulating sleeve (101) to ensure that when the rear power wheel group (7) transports the insulating sleeve (101), the lower left power wheel (72), lower right power wheel (73), upper left power wheel (77), and upper right power wheel (78) are respectively located between the buckle part and the buckle groove part of the insulating sleeve (101); Step c: Clamp the cable (100) to be installed with the cable clamping device (5), and hang the front hanging wheel (32) on the cable (100), and connect the cable (100) and the main body base (1) through the fall protection safety rope. During this process, the cable (100) passes through the gap between the lower left power wheel (72) and the lower right power wheel (73), the fastening assembly (2), and the gap between the front left power wheel (61) and the front right power wheel (62). Step d: Operate the swing arm opening and closing drive mechanism (79) and make the upper end of the movable swing arm (75) swing upward. At this time, the upper left power wheel (77) retracts from the lower left power wheel (72), and the upper right power wheel (78) retracts from the lower right power wheel (73). Pull the insulating sleeve 101 out from the sleeve storage tray (93) and keep the buckle part and buckle groove part of the insulating sleeve (101) facing down. Then, the end of the insulating sleeve (101) passes from back to front through the guide wheel assembly (4), the rear power wheel group (7), the fastening assembly (2) and the front power wheel group (6). The insulating sleeve (101) passes above the cable (100). The end of the insulating sleeve (101) is in the fastening state at the position of the fastening assembly (2) and the front power wheel group (6). Step e: After the end of the insulating sleeve (101) is pulled, operate the swing arm opening and closing drive mechanism (79) and make the upper end of the movable swing arm (75) swing downward. The lower left power wheel (72) and the lower right power wheel (73) contact the lower surface of the main body of the insulating sleeve (101), and the upper left power wheel (77) and the upper right power wheel (78) press against the upper surface of the main body of the insulating sleeve (101). At this time, the lower left power wheel (72) and the upper left power wheel (77) form the left conveying roller group, and the lower right power wheel (73) and the upper right power wheel (78) form the right conveying roller group. Step f: Start the shaft distribution hydraulic motor (81). The shaft distribution hydraulic motor (81) drives the front drive shaft (64) and the rear drive shaft (71) to rotate. The front drive shaft (64) drives the power wheel 62 on the left and right sides of the front end to rotate through the gear transmission pair (65). The rear drive shaft (71) drives the lower left power wheel (72) and the lower right power wheel (73) to rotate synchronously. At this time, the front power wheel group (6) and the rear power wheel group (7) cooperate to realize the continuous forward conveying of the insulating sleeve (101). During this process, the insulating sleeve (101) continuously completes the fastening action, and the fastened insulating sleeve (101) is pushed forward along the cable (100) to realize the automatic packaging of the insulating sleeve (101) of the cable (100). The fastened insulating sleeve (101) is pushed forward and passes between the front hanging wheel (32) and the cable (100). At this time, the front hanging wheel (32) rotates adaptively.

2. An overhead power line insulating shield installation apparatus according to claim 1, characterised in that: Anti-rotation key structures are respectively installed between the lower left power wheel (72) and the rear drive shaft (71), and between the lower right power wheel (73) and the rear drive shaft (71). The lower left power wheel (72) and the lower right power wheel (73) are respectively provided with radially outward-opening internal threaded holes (710). Locking screws are respectively screwed into the internal threaded holes (710) of the lower left power wheel (72) and the lower right power wheel (73).

3. An overhead power line insulating shield installation apparatus according to claim 1, characterized in that: The guide wheel assembly (4) includes a guide wheel bracket (41) that is fastened to the main body base (1). The guide wheel bracket (41) is equipped with a number of guide wheel groups (42) arranged sequentially from front to back. Each guide wheel group (42) includes two sheath guide wheels (421) with an intermediate spacing that can be adaptively adjusted according to the size specifications of the insulating sheath (101).

4. An overhead power line insulating shield installation apparatus according to claim 1, characterized in that: The bottom cover (931) of the storage tray is screwed in and has at least two coil positioning rods (933) that protrude and extend toward the side of the top cover (932) of the storage tray respectively. Each coil positioning rod (933) has a number of locking grooves (9331) arranged sequentially and at intervals along the axial direction. The storage tray cover (932) has through-holes for each coil positioning rod (933), and elastic locking fasteners (934) are installed on the outer side of the storage tray cover (932) at the positions of each cover positioning hole. When the storage tray cover (932) is in the closed state, each coil positioning rod (933) passes through the corresponding cover positioning hole, and the elastic locking fastener (934) is locked in one of the locking grooves (9331) of the coil positioning rod (933).

5. An overhead power line insulating shield installation apparatus according to claim 1, characterized in that: The feeding bracket (91) is equipped with a damping adjustment mechanism (97) corresponding to the storage tray rotating shaft (95). The damping adjustment mechanism (97) includes a fixing block (971) that is fastened to the feeding bracket (91). The fixing block (971) has a shaft hole corresponding to the storage tray rotating shaft (95). The end of the storage tray rotating shaft (95) is rotatably fitted into the shaft hole of the fixing block (971). The upper surface of the fixing block (971) is provided with an adjustment hole (9711) that communicates with the shaft hole. The adjustment hole (9711) is fitted with a pressing block (972), an adjusting spring (973), and a handle screw (974) arranged from bottom to top. The lower end of the pressing block (972) abuts against the rotating shaft (95) of the storage tray, the lower end of the adjusting spring (973) abuts against the upper end of the pressing block (972), and the handle screw (974) is screwed into the adjustment hole (9711), and the upper end of the adjusting spring (973) abuts against the handle screw (974).

6. An overhead power line insulating shield installation apparatus according to claim 1, characterized in that: An auxiliary spring (981) and a top ring (982) are fitted around the outer periphery of the storage tray shaft (95) between the bottom cover bushing (9311) and the support bearing seat (94). One end of the auxiliary spring (981) abuts against the support bearing seat (94), and the other end of the auxiliary spring (981) abuts against the top ring (982). The top ring (982) is in contact with the bottom cover bearing.

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