Line jumper insulator replacement device and method

Abstract

The invention relates to a line jumper insulator replacement device and method, and the device comprises a supporting frame, and also comprises a clamping mechanism which is movably connected to the supporting frame, the supporting frame is movably connected with a dismounting beam, and the dismounting beam is disposed above the clamping mechanism; the supporting frame is movably connected with a sling; by limiting the relative position of the insulator ball head and the counter weight socket clevis, the device prevents the insulator ball head from inclining in the socket clevis, ensures that a gap between the insulator ball head and the socket clevis is sufficient during dismounting operation, and further avoids the situation that the insulator ball head inclines in the socket clevis and is clamped in the socket clevis when the insulator is dismounted. Therefore, the resistance of manually disassembling the insulator is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to a line jumper insulator replacement device and method, belonging to the technical field of electric power construction. Background Art

[0002] The composite insulators of power transmission lines have a certain service life and years. When the line insulators reach a certain service life, they need to be replaced regularly. At present, when replacing line jumper insulators, the traditional replacement method is for workers to stand on the line and use a four-wire hook to lift the conductor on one side, so that the insulator cup and the cup hanging plate become loose, and then the workers manually separate the two to complete the replacement work; in actual use, this method has the following problems:

[0003] After the line is lifted on one side, an angle is generated between the inclined bowl head hanging plate and the vertical insulator ball head, and the two change from a vertical extrusion state to an inclined extrusion state. There cannot be enough gap between the bowl head hanging plate and the insulator ball head, and there is still a large friction between the two. In addition, the inclined bowl head hanging plate generates a torque on the insulator ball head, which causes the insulator ball head to be easily stuck in the bowl head hanging plate, which is not conducive to removing the insulator from the bowl head hanging plate, resulting in time-consuming and labor-intensive replacement of the jumper insulator, reducing work efficiency. Summary of the invention

[0004] In view of the deficiencies in the above related technologies, the technical problem to be solved by the present invention is: to provide a line jumper insulator replacement device and method to solve the problem that the insulator ball head is not easy to detach from the bowl head hanging plate when the insulator is replaced by lifting one side of the line, which makes the replacement of the insulator time-consuming and laborious.

[0005] The present invention discloses a line jumper insulator replacement device and method, comprising: a support frame, and also comprising: a clamping mechanism movably connected to the support frame, wherein a disassembly beam is movably connected to the support frame, and the disassembly beam is placed above the clamping mechanism; a sling is movably connected to the support frame;

[0006] The support frame comprises: a pod placed below the support frame, a support arm is arranged above the pod, a first guide rail and a second guide rail are respectively fixedly connected to the support arm, and a lifting lug is hinged on the outer side of the support arm; an operating table is arranged above the pod; and the operating table is located between the support arms;

[0007] The clamping mechanism comprises: a clamping screw rotatably connected to the support arm, and a clamping block is threadedly connected to the clamping screw;

[0008] The disassembly beam includes: a sliding platform slidably connected to the first guide rail, a lifting column fixedly connected to the sliding platform, a crossbeam fixedly connected to the upper end of the lifting column, and a separation sheath movably connected to the crossbeam; a telescopic cylinder fixedly connected to the sliding platform, an output end of the telescopic cylinder fixedly connected to the crossbeam; a positioning screw threadedly connected to the sliding platform, and the positioning screw rotatably connected to the support arm.

[0009] Optionally, the support arms are distributed along both sides of the pod, and the support arms are inclined away from the outer side of the pod; the number of the first guide rails and the second guide rails is at least 2, and the first guide rails and the second guide rails are respectively kept parallel; the second guide rail is placed inside the area occupied by the first guide rail;

[0010] One end of the clamping block is slidably connected to the second guide rail, and a rubber block is embedded in the clamping block.

[0011] Optionally, a control unit is fixedly connected in the pod, and the telescopic cylinder is connected to the control unit, and the connection methods include: electrical connection and pipeline connection.

[0012] Optionally, the clamping screw and the positioning screw are both double-headed screws, one end of the clamping screw is fixedly connected to the first rotating wheel; one end of the positioning screw is fixedly connected to the second rotating wheel;

[0013] The number of positioning screws is at least 2, a transmission shaft is connected between the positioning screws 306, and the positioning screws and the transmission shaft are connected by gears.

[0014] Optionally, the number of the cross beams is at least 2, a slide groove is provided in the cross beam, a roller is protrudingly provided on the inner surface of the slide groove, the separation sheath is contained in the slide groove and the outer surface of the separation sheath is attached to the roller; the roller reduces the friction between the separation sheath and the slide groove, making it easier for the separation sheath to detach from the slide groove.

[0015] Optionally, a groove is provided in the separation sheath, an arc-shaped groove is opened on one side of the inner side of the groove, and an elastic block is embedded in the surface of the arc-shaped groove.

[0016] Optionally, positioning holes are formed on the side surfaces of the crossbeam and the separation sheath, and positioning pins are inserted into the positioning holes.

[0017] Optionally, a damper is connected in series to the sling, one end of the sling is fixedly connected to a safety buckle, and the safety mouth is set in the lifting ear.

[0018] Optionally, a heavy hammer is placed on the operating table, and the clamping block is attached to the side of the heavy hammer; an insulator is clamped on the heavy hammer, and one end of the insulator is clamped in the separation sheath.

[0019] Optionally, the above-mentioned line jumper insulator replacement device provides an operating platform;

[0020] S01. Place the replacement device: fix one end of the sling to the line tower, pull the support frame with the other end and place it under the insulator weight;

[0021] S02. Install the replacement device: Manually wrap the support frame around the bottom of the weight, pull the sling to put the weight on the operating table, so that the operating table fits the bottom of the weight;

[0022] S03. Fix the weight on the device: rotate the first rotating wheel and the clamping screw to drive the clamping block to clamp the two sides of the weight to complete the fixing of the weight;

[0023] S04. Position the device and the insulator: rotate the second rotating wheel and the positioning screw to drive the disassembly beam close to the insulator, and adjust the telescopic cylinder to adjust the height of the slideway to correspond to the level of the lower end of the insulator;

[0024] S05. Use the device to clamp and fix the insulator laterally: insert the separation sheath into the middle slide slot and align it with the lower end of the insulator; turn the positioning screw, remove the beam to clamp the insulator, and both sides of the lower end of the insulator enter the separation sheath to achieve the lateral clamping of the insulator;

[0025] S06. Use the device to clamp and fix the insulator longitudinally: remove the stop pin at the lower end of the insulator, retract the telescopic cylinder, drive the disassembly beam to retract, shorten the distance between the insulator and the weight, increase the gap between the insulator ball head and the bowl head hanging plate of the weight, and the two lose the clamping force;

[0026] S07. Drive the insulator to separate from the weight: Drag the insulator along the slide groove, and the lower end of the insulator drives the separation sheath to slide along the slide groove until the separation sheath is separated from the slide groove, the insulator is separated from the weight, and the insulator is removed.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention discloses a line jumper insulator replacement device and method. The device limits the relative position of the insulator ball head and the heavy hammer bowl head hanging plate to prevent the insulator ball head from tilting in the bowl head hanging plate, thereby ensuring that there is sufficient clearance between the insulator ball head and the bowl head hanging plate during disassembly operations, thereby preventing the insulator ball head from tilting in the bowl head hanging plate and causing the ball head to be stuck in the bowl head hanging plate when the insulator is disassembled. This reduces the resistance to manual disassembly of the insulator and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn according to the actual scale.

[0030] Figure 1 : A schematic diagram of the main structure of a line jumper insulator replacement device of the present invention;

[0031] Figure 2 : A schematic structural diagram of a support frame and a clamping mechanism of a line jumper insulator replacement device of the present invention;

[0032] Figure 3 : A schematic structural diagram of a disassembly beam of a line jumper insulator replacement device of the present invention;

[0033] Figure 4 : A schematic structural diagram of a separation sheath and a slide groove of a line jumper insulator replacement device of the present invention.

[0034] In the figure:

[0035] Support frame 1, pod 101, support arm 102, first guide rail 103, lifting lug 104, operating table 105, second guide rail 106;

[0036] Clamping mechanism 2, clamping screw 201, first rotating wheel 202, clamping block 203;

[0037] Disassembly beam 3, cross beam 301, lifting column 302, telescopic cylinder 303, sliding table 304, separation sheath 305, groove 351, arc groove 352, elastic block 353, positioning screw 306, second rotating wheel 307, transmission shaft 308, slide groove 309, roller 310;

[0038] Sling 4;

[0039] Control unit 5;

[0040] Insulator 6;

[0041] Heavy hammer 7. DETAILED DESCRIPTION

[0042] The present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0043] The present invention is further described below by means of specific embodiments, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0044] like Figure 1-Figure 4As shown, the line jumper insulator replacement device and method include: a support frame 1, and also include: a clamping mechanism 2 movably connected to the support frame 1, a disassembly beam 3 movably connected to the support frame 1, and the disassembly beam 3 is placed above the clamping mechanism 2; the support frame 1 is movably connected to a sling 4.

[0045] The support frame 1 includes: a pod 101 placed below the support frame 1, a support arm 102 is arranged above the pod 101, a first guide rail 103 and a second guide rail 106 are fixedly connected to the support arm 102 respectively, and a lifting ear 104 is hinged on the outer side of the support arm 102; an operating table 105 is arranged on the pod 101; and the operating table 105 is between the support arms 102.

[0046] The clamping mechanism 2 includes: a clamping screw 201 rotatably connected to the support arm 102 , and a clamping block 203 is threadedly connected to the clamping screw 201 .

[0047] The disassembly beam 3 includes: a sliding platform 304 slidably connected to the first guide rail 103, a lifting column 302 fixedly connected to the sliding platform 304, a crossbeam 301 fixedly connected to the upper end of the lifting column 302, and a separation sheath 305 movably connected to the crossbeam 301; a telescopic cylinder 303 fixedly connected to the sliding platform 304, and an output end of the telescopic cylinder 303 fixedly connected to the crossbeam 301; a positioning screw 306 threadedly connected to the sliding platform 304, and the positioning screw 306 is rotatably connected to the support arm 102; the lifting column 302 is a telescopic rod, and its function is to provide guidance and support for the crossbeam 301.

[0048] A heavy hammer 7 is placed on the operating table 105 , and the clamping block 203 is attached to the side of the heavy hammer 7 ; an insulator 6 is clamped on the heavy hammer 7 , and one end of the insulator 6 is clamped in the separation sheath 305 .

[0049] The support arms 102 are distributed along both sides of the pod 101, and the support arms 102 are inclined away from the outside of the pod 101. The support arms 102 are inclined outward to leave more operating space for the operating table 105. In this embodiment, the support arms 102 are inclined outward to form a V shape. Figure 2 As shown; the first guide rail 103 and the second guide rail 106 are provided in at least two numbers, and the first guide rails 103 and the second guide rails 106 are kept parallel to each other; the second guide rail 106 is placed inside the area occupied by the first guide rail 103;

[0050] One end of the clamping block 203 is slidably connected to the second guide rail 106 , and a rubber block is embedded in the clamping block 203 , which is used to increase the friction between the contact surface of the clamping block 203 and the weight 7 , so that the fixation is more secure.

[0051] A control unit 5 is fixedly connected inside the pod 101, and the telescopic cylinder 303 is connected to the control unit 5, and the connection methods include: electrical connection and pipeline connection; when the electrical connection is adopted, the telescopic cylinder 303 is an electric cylinder, and when the pipeline connection is adopted, the telescopic cylinder 303 is a hydraulic cylinder; preferably, in this embodiment, the telescopic cylinder 303 is an electric cylinder.

[0052] The clamping screw 201 and the positioning screw 306 are both double-headed screws. In this embodiment, the threads at both ends of the double-headed screw have opposite rotation directions. One end of the clamping screw 201 is fixedly connected to the first rotating wheel 202; one end of the positioning screw 306 is fixedly connected to the second rotating wheel 307.

[0053] There are at least two positioning screws 306 , and a transmission shaft 308 is connected between the positioning screws 306 . The positioning screws 306 and the transmission shaft 308 are connected by gears. In this embodiment, bevel gears are used for transmission.

[0054] The number of the cross beams 301 is at least two, and a slide groove 309 is provided in the cross beam 301. A roller 310 is protrudingly provided on the inner surface of the slide groove 309. The separation sheath 305 is accommodated in the slide groove 309 and the outer surface of the separation sheath 305 is attached to the roller 310. The roller 310 reduces the friction between the separation sheath 305 and the slide groove 309, so as to facilitate the separation sheath 305 to detach from the slide groove 309.

[0055] The separation sheath 305 is provided with a groove 351, and an arc groove 352 is provided on one side of the inner side of the groove 351. An elastic block 353 is embedded on the surface of the arc groove 352. In this embodiment, the groove 351 is a C-shaped groove, and the arc of the arc groove 352 matches the arc of one end of the insulator 6. The arc groove 352 is provided to clamp one end of the insulator 6 in the arc groove 352 to prevent the separation sheath 3053 and the insulator 6 combination from disintegrating when sliding from the slide groove 309, thereby causing the insulator 6 to Disassembly failed; preferably, the separation sheath 305 can be provided with a variety of arc grooves 352 according to different insulators 6. When in use, the corresponding separation sheath 305 can be matched instantly according to the type of insulator 6 to ensure the flexibility of operation. The elastic block 353 is made of rubber. The purpose of setting the elastic block 353 is to utilize its own elastic deformation to make one end of the insulator 6 better fit into the arc groove 352, thereby ensuring the contact area between the arc groove 352 and the insulator 6 while also increasing the friction between the contact surfaces.

[0056] Positioning holes are provided on the sides of the cross beam 301 and the separation sheath 305. Figure 4As shown, the positioning hole on the crossbeam 301 passes through the slide slot 309, and a positioning pin is inserted into the positioning hole. In order to prevent the separation sheath 305 from escaping from the slide slot 309 when the device has not yet been fixed to the insulator 6, the positioning pin is used to temporarily fix the separation sheath 305.

[0057] A damper is connected in series to the sling 4, one end of the sling 4 is fixedly connected to a safety buckle, and the safety buckle is set in the lifting ear 104; when the insulator 6 is separated from the device, the device falls down with the heavy hammer 7, and the falling of the device causes the sling 104 to move, causing the sling 104 to be impacted, and the damper is used to reduce the impact to prevent excessive impact from causing rigid damage to the device and the operator.

[0058] The above-mentioned line jumper insulator replacement device provides an operating platform. When performing insulator removal operations, the following are required:

[0059] S01. Lifting and replacement device: fix one end of the sling 4 on one side of the support frame 1 to the cross arm of the tower, pull the support frame 1 with the other end and place the support frame 1 on the side of the insulator weight 7, manually wrap the support frame 1 around the bottom of the weight 7, and at the same time, transfer the sling 4 on this side back and fix it to the cross arm of the tower;

[0060] S02 installation replacement device: manually pull the sling 4 will be heavy hammer 7 set on the operating table 105, so that the operating table 105 and the heavy hammer 7 below the fit;

[0061] S03. The weight is fixed on the device: Rotate the first rotating wheel 202 and the clamping screw 201 to drive the clamping block 203 to clamp the weight 7 on both sides to complete the fixing of the weight 7;

[0062] S04. Positioning the device and the insulator: Rotate the second rotating wheel 307 and the positioning screw 306 to drive the disassembly beam 3 close to the insulator 6, adjust the telescopic cylinder 303 to adjust the height of the chute 309 until the chute 309 corresponds to the level of the lower end of the insulator 6;

[0063] S05. The insulator is clamped and fixed laterally by means of a device: the separation sheath 305 is inserted into the chute 309 and aligned with the lower end of the insulator; the positioning screw 306 is rotated, the insulator 6 is clamped by the disassembly beam 3, and the lower ends of the insulator 6 are clamped into the separation sheath 305 on both sides to achieve the lateral clamping of the insulator 6;

[0064] S06. Use the device to clamp the insulator longitudinally: remove the R pin at the lower end of the insulator 6, shrink the telescopic cylinder 303, drive the disassembly beam 3 to shrink, the distance between the insulator 6 and the heavy hammer 7 is shortened, and the gap between the insulator 6 ball head and the heavy hammer 7 bowl head hanging plate is enlarged, and the two lose the clamping force;

[0065] S07. Drive the insulator to separate from the weight: Drag the insulator 6 along the slide groove 309, and the lower end of the insulator 6 drives the separation sheath 305 to slide along the slide groove 309 until it is separated from the slide groove 309, the insulator 6 is separated from the weight 7, and the insulator 6 is removed.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A line jumper insulator replacement device, comprising: The support frame (1) is characterized in that: It also comprises: a clamping mechanism (2) movably connected to the support frame (1); a disassembly beam (3) movably connected to the support frame (1); the disassembly beam (3) is placed above the clamping mechanism (2); and a sling (4) movably connected to the support frame (1); The support frame (1) comprises: a pod (101) disposed below the support frame (1); a support arm (102) is arranged above the pod (101); a first guide rail (103) and a second guide rail (106) are respectively fixedly connected to the support arm (102); a lifting lug (104) is hingedly connected to the outer side of the support arm (102); an operating table (105) is arranged above the pod (101); and the operating table (105) is located between the support arms (102); The clamping mechanism (2) comprises: a clamping screw (201) rotatably connected to the support arm (102), and a clamping block (203) is threadedly connected to the clamping screw (201); The disassembly beam (3) comprises: a sliding platform (304) slidably connected to the first guide rail (103); a lifting column (302) is fixedly connected to the sliding platform (304); a crossbeam (301) is fixedly connected to the upper end of the lifting column (302); a separation sheath (305) is movably connected to the crossbeam (301); a telescopic cylinder (303) is fixedly connected to the sliding platform (304); an output end of the telescopic cylinder (303) is fixedly connected to the crossbeam (301); a positioning screw (306) is threadedly connected to the sliding platform (304); and the positioning screw (306) is rotatably connected to the support arm (102).

2. A line jumper insulator replacement device according to claim 1, characterized in that: The support arms (102) are distributed along both sides of the pod (101), and the support arms (102) are inclined toward the outside away from the pod (101); at least two first guide rails (103) and two second guide rails (106) are provided, and the first guide rails (103) and the second guide rails (106) are kept parallel to each other; the second guide rail (106) is placed inside the area occupied by the first guide rail (103); One end of the clamping block (203) is slidably connected to the second guide rail (106), and a rubber block is embedded in the clamping block (203).

3. A line jumper insulator replacement device according to claim 1, characterized in that: A control unit (5) is fixedly connected inside the pod (101), and the telescopic cylinder (303) is connected to the control unit (5), and the connection methods include: electrical connection and pipeline connection.

4. A line jumper insulator replacement device according to claim 1, characterized in that: The clamping screw (201) and the positioning screw (306) are both double-headed screws; one end of the clamping screw (201) is fixedly connected to the first rotating wheel (202); one end of the positioning screw (306) is fixedly connected to the second rotating wheel (307); The number of positioning screws (306) is at least two, a transmission shaft (308) is connected between the positioning screws (306), and the positioning screws (306) and the transmission shaft (308) are connected by gears.

5. A line jumper insulator replacement device according to claim 1, characterized in that: The number of the cross beams (301) is at least two, and a slide groove (309) is provided inside the cross beam (301). A roller (310) is protrudingly provided on the inner surface of the slide groove (309). The separation sheath (305) is contained in the slide groove (309) and the outer surface of the separation sheath (305) is attached to the roller (310); the roller (310) reduces the friction between the separation sheath (305) and the slide groove (309), so as to facilitate the separation sheath (305) to be separated from the slide groove (309).

6. A line jumper insulator replacement device according to claim 5, characterized in that: A groove (351) is provided in the separation sheath (305), an arc-shaped groove (352) is provided on one side of the inner side of the groove (351), and an elastic block (353) is embedded on the surface of the arc-shaped groove (352).

7. A line jumper insulator replacement device according to claim 5, characterized in that: Positioning holes are provided on the sides of the crossbeam (301) and the separation sheath (305), and positioning pins are inserted into the positioning holes.

8. A line jumper insulator replacement device according to claim 1, characterized in that: A damper is serially connected to the sling (4); one end of the sling (4) is fixedly connected to a safety buckle, and the safety buckle is sleeved in the lifting ear (104).

9. A line jumper insulator replacement device according to claim 1, characterized in that: A heavy hammer (7) is placed on the operating table (105), and the clamping block (203) is attached to the side of the heavy hammer (7); an insulator (6) is clamped on the heavy hammer (7), and one end of the insulator (6) is clamped in the separation sheath (305).

10. A method for replacing a line jumper insulator, characterized in that: The above-mentioned line jumper insulator replacement device provides an operating platform; S01. Lifting and replacement device: fix one end of the sling on one side of the support frame to the cross arm of the tower, pull the support frame with the other end of the sling and place the support frame to the side of the insulator weight, manually wrap the support frame to the bottom of the weight, and at the same time transfer the sling on this side back and fix it to the cross arm of the tower; S02. Install the replacement device: manually pull the sling to put the weight on the operating table so that the operating table fits the bottom of the weight; S03. Fix the weight on the device: rotate the first rotating wheel and the clamping screw to drive the clamping block to clamp the two sides of the weight to complete the fixing of the weight; S04. Position the device and the insulator: rotate the second rotating wheel and the positioning screw to drive the disassembly beam close to the insulator, adjust the telescopic cylinder to adjust the height of the slide until the slide corresponds to the level of the lower end of the insulator; S05. Use the device to clamp and fix the insulator laterally: insert the separation sheath into the slide slot and align it with the lower end of the insulator; turn the positioning screw, remove the beam to clamp the insulator, and clamp the two sides of the lower end of the insulator into the separation sheath to achieve the lateral clamping of the insulator; S06. Use the device to clamp and fix the insulator longitudinally: remove the stop pin at the lower end of the insulator, retract the telescopic cylinder, drive the disassembly beam to retract, shorten the distance between the insulator and the weight, increase the gap between the insulator ball head and the bowl head hanging plate of the weight, and lose the clamping force between the insulator and the weight; S07. Drive the insulator to separate from the weight: Drag the insulator along the slide groove, and the lower end of the insulator drives the separation sheath to slide along the slide groove until the separation sheath is separated from the slide groove, the insulator is separated from the weight, and the insulator is removed.

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