Non-shedding arm insulator replacement device

Abstract

The utility model relates to the non -supporting inclined wrist -arm insulator replacement device for the field of power grid operation, including the hoop no. One, the right -hand thread of hoop no. One is penetrated by two bolts, and the left -hand thread of hoop no. One is fixedly connected with the mounting seat, the left -hand thread of mounting seat is rotatably connected with the adjusting frame, the one end fixedly connected with the outer tube of adjusting frame is away from the mounting seat, the inner chamber sliding connection of outer tube has the inner tube, the inner wall fixed connection of outer tube has the locating plate, the inside rotation of locating plate is penetrated and has the adjusting screw rod, the left -hand thread movable penetration to the inner tube of adjusting screw rod and is threadedly sleeved with the adjusting block, the device can significantly improve the efficiency and safety of non -supporting wrist -arm insulator replacement operation, compared with the traditional replacement mode, has the characteristics such as convenient operation, good stability, reduces the dependence on the skill level of operating personnel simultaneously, helps to complete the insulator replacement task in the skylight time, thereby reduces the probability of occurrence such as operation delay point exception.

Description

Technical Field

[0001] This utility model relates to an insulator replacement device, and in particular to a non-supported inclined bracket insulator replacement device applied in the field of power grid operation. Background Technology

[0002] The overhead contact line cantilever arm is a structural device installed on the upper end of the support column to support the positioning device and the contact suspension. It transmits the load of the contact suspension to the support column or other structures. When the insulator on the cantilever arm is damaged, it will cause the cantilever arm to sag, which will increase the tension of the contact network and cause short circuits or leakage. Therefore, in order to ensure the normal passage of trains, the insulator on the damaged cantilever arm must be replaced.

[0003] Currently, when replacing insulators on the cantilever arm, a steel wire sleeve is attached to the top of the support column, and a hand-operated hoist is connected to the end of the cantilever arm. Tightening the hand-operated hoist separates the insulator from the cantilever arm for replacement. For example, Chinese Patent Publication No. CN214828545U discloses a hoisting platform for replacing double insulator strings. This utility model sets a replacement mechanism next to the hoisting mechanism, so that the hoisted double insulators can be pulled to the vicinity of the construction personnel, thereby facilitating the retrieval of the double insulators, reducing construction difficulty, and improving the safety factor.

[0004] At the anchor section joint conversion column, the non-support bracket is installed by raising it. The height difference between it and the top of the column is small, and the insulator is under pressure. Under this special working condition, the traditional replacement method is difficult to complete the operation effectively. It usually requires the use of a work vehicle for cooperation. This not only makes the operation more difficult, but also requires a high level of technical skills from the operators. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that at the anchor joint conversion column, the non-support arm is installed in a raised manner, the height difference between it and the top of the column is small, and the insulator is under pressure, making replacement difficult and traditional replacement methods are difficult to complete.

[0006] To solve the above problems, this utility model provides a non-supported inclined arm insulator replacement device, including a clamp first, with two bolts threaded through the right end of the clamp first, and a mounting base fixedly connected to the left end of the clamp first. An adjusting frame is rotatably connected to the left end of the mounting base. An outer tube is fixedly connected to the end of the adjusting frame away from the mounting base. An inner tube is slidably connected to the inner cavity of the outer tube. A positioning plate is fixedly connected to the inner wall of the outer tube. An adjusting screw is rotatably passed through the inside of the positioning plate. The left end of the adjusting screw moves through into the inner tube and is threaded with an adjusting block. The outer surface of the adjusting block is fixedly connected to the inner wall of the inner tube. A positioning block is fixedly connected to the upper end of the inner tube. A mounting plate is fixedly connected to the front end of the positioning block. A clamp second is installed on the upper end of the mounting plate and the positioning block. The clamp second includes a clamp plate fixedly installed on the upper end of the mounting plate and the positioning block. Two clamp rods move through the upper end of the clamp plate.

[0007] In the above-mentioned non-supported cantilever insulator replacement device, the device provided in this application can significantly improve the efficiency and safety of non-supported cantilever insulator replacement operations. Compared with traditional replacement methods, it has the characteristics of convenient operation and good stability, while reducing the dependence on the skill level of operators. It helps to complete the insulator replacement task within the maintenance window, thereby reducing the probability of abnormal situations such as operation delays.

[0008] As a further supplement to this application, the opening of the card plate faces downward, the longitudinal section of the card rod is U-shaped, and the outer surface of the card rod is movably fitted with a card block.

[0009] As a further supplement to this application, the card block and the card rod are fixedly connected by bolts, and the lower end of the card block is in contact with the upper end of the card plate.

[0010] As a further supplement to this application, the opening of the card plate faces upward, the longitudinal section of the card rod is inverted J-shaped, the long ends of the two card rods are fixedly connected to the lifting plate, the positioning block is drilled with an adjustment hole, the front end of the lifting plate moves through the adjustment hole, the lower end of the mounting plate is rotatably connected to the lifting screw, and the lower end of the lifting screw is threaded through the lifting plate.

[0011] As a further supplement to this application, a fixing plate is fixedly connected to the front end of the outer tube, and a rotating rod is rotatably connected to the lower end of the fixing plate. A pulley set is sleeved together between the lifting screw and the rotating rod.

[0012] As a further supplement to this application, the pulley assembly is located below the lifting plate, the lifting plate has a convex cross-section, and both the left and right ends of the lifting plate are in contact with the inner wall of the adjustment hole.

[0013] In summary, in practical applications, clamp one is attached to the flat cantilever arm, and clamp one is fixed to the flat cantilever arm with bolts. The adjustment bracket facilitates the rotation of the outer tube angle. Rotating the adjustment screw can drive the adjustment block to move, thereby allowing the inner tube to slide inside the outer tube and adjusting the length of the inner tube extension. Then, clamp two is installed on the inclined cantilever arm, fixing the replacement device to the cantilever arm. At this point, the insulator can be replaced. Compared with traditional replacement methods, it has the characteristics of convenient operation and good stability, while reducing the dependence on the skill level of the operator. It helps to complete the insulator replacement task within the maintenance window, thereby reducing the probability of abnormal situations such as work delays. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of this application;

[0015] Figure 2 This is a schematic diagram of a clamp structure according to the first embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the outer tube structure according to the first embodiment of this application;

[0017] Figure 4 This is a cross-sectional view of the outer tube structure according to the first embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the clamp structure according to the first embodiment of this application;

[0019] Figure 6 This is a three-dimensional structural diagram of the second embodiment of this application;

[0020] Figure 7 This is a schematic diagram of the clamp structure according to the second embodiment of this application;

[0021] Figure 8 This is an exploded schematic diagram of the clamp structure according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1-Clamping hoop, 2-Clipping block, 3-Mounting base, 4-Adjusting bracket, 5-Outer tube, 6-Inner tube, 7-Positioning plate, 8-Adjusting screw, 9-Adjusting block, 10-Positioning block, 11-Mounting plate, 12-Clipping plate, 13-Clipping rod, 14-Lifting plate, 15-Adjusting hole, 16-Lifting screw, 17-Rotating rod, 18-Pulley assembly. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figure 1 and Figure 2 The following is shown: A non-supported inclined cantilever insulator replacement device includes a clamp 1. Two bolts are threaded through the right end of the clamp 1. The clamp 1 is fixedly connected to the cantilever arm by bolts, serving as the basic support point of the device. The left end of the clamp 1 is fixedly connected to a mounting base 3. The left end of the mounting base 3 is rotatably connected to an adjusting frame 4. The end of the adjusting frame 4 away from the mounting base 3 is fixedly connected to an outer tube 5. The mounting base 3 and the adjusting frame 4 facilitate the rotation of the outer tube 5, thereby adjusting the angle of the outer tube 5.

[0027] Figure 1 , Figure 3 and Figure 4 As shown: The inner tube 6 is slidably connected to the inner cavity of the outer tube 5. The positioning plate 7 is fixedly connected to the inner wall of the outer tube 5. An adjusting screw 8 is rotatably passed through the inside of the positioning plate 7. The left end of the adjusting screw 8 is movably passed into the inner tube 6 and threaded with an adjusting block 9. The outer surface of the adjusting block 9 is fixedly connected to the inner wall of the inner tube 6. Rotating the adjusting screw 8 can cause the adjusting block 9 to move. Since the inner tube 6 is located inside the outer tube 5, the inner tube 6 is forced to move only inside the outer tube 5, thereby adjusting the extension length of the inner tube 6.

[0028] Figure 1 and Figure 5 As shown: A positioning block 10 is fixedly connected to the upper end of the inner tube 6. A mounting plate 11 is fixedly connected to the front end of the positioning block 10. A clamp 2 is installed on the upper ends of the mounting plate 11 and the positioning block 10. The clamp 2 includes a clamping plate 12 fixedly installed on the upper ends of the mounting plate 11 and the positioning block 10. Two clamping rods 13 are movably passed through the upper end of the clamping plate 12. The opening of the clamping plate 12 faces downward. The clamping plate 12 forms a supporting base to pre-support the inclined arm. The longitudinal section of the clamping rod 13 is U-shaped. The clamping rod 13 is located above the inclined arm and forms a closed loop with the clamping plate 12. A clamping block 2 is movably sleeved on the outer surface of the clamping rod 13. The clamping block 2 is fixedly connected to the clamping rod 13 by bolts. The lower end of the clamping block 2 is in contact with the upper end of the clamping plate 12. The clamping block 2 presses the mating surface of the clamping plate 12 and the clamping rod 13 by bolts, thereby installing the clamp 2 and the inclined arm.

[0029] When replacing insulators, clamp 1 can be first clamped onto the flat cantilever arm and fixed to the flat cantilever arm with bolts. Adjusting bracket 4 facilitates the rotation of the outer tube 5. Rotating adjusting screw 8 can drive adjusting block 9 to move, thereby allowing inner tube 6 to slide inside outer tube 5 and adjust the length of inner tube 6. Then, clamp 2 is installed onto the inclined cantilever arm so that the inner wall of clamping plate 12 fits against the inclined cantilever arm. Then, two clamping rods 13 are inserted, and clamping block 2 is placed on clamping rod 13 so that clamping block 2 fits against clamping plate 12. Then, bolts are screwed in to limit and fix clamping block 2 and clamping rod 13, thereby fixing clamp 2 and inclined cantilever arm. At this point, the insulator can be replaced. Compared with traditional replacement methods, it has the characteristics of convenient operation and good stability. At the same time, it reduces the dependence on the skill level of operators and helps to complete the insulator replacement task within the maintenance window, thereby reducing the probability of abnormal situations such as work delays.

[0030] Second implementation method:

[0031] Based on the first embodiment, this embodiment adds a lifting plate 14, an adjustment hole 15, a lifting screw 16, a rotating rod 17, and a pulley group 18, changes the orientation of the clamping plate 12 and the shape of the clamping rod 13, and omits the clamping block 2. The rest remains the same as the first embodiment.

[0032] Figures 6-8 The diagram shows that the opening of the clamping plate 12 faces upward, the longitudinal section of the clamping rod 13 is an inverted J-shape, there is a gap between one end of the clamping rod 13 and the clamping plate 12 to facilitate the insertion of the inclined arm, the long ends of the two clamping rods 13 are fixedly connected to the lifting plate 14, the positioning block 10 has an adjustment hole 15, the front end of the lifting plate 14 moves through the adjustment hole 15, the cross-section of the lifting plate 14 is convex, and both the left and right ends of the lifting plate 14 are in contact with the inner wall of the adjustment hole 15, effectively preventing the lifting plate 14 from shaking when it moves, the lower end of the mounting plate 11 is rotatably connected to the lifting screw 16, the lower end of the lifting screw 16 is threaded through the lifting plate 14, the front end of the outer tube 5 is fixedly connected to the fixing plate, the lower end of the fixing plate is rotatably connected to the rotating rod 17, the lifting screw 16 and the rotating rod 17 are jointly fitted with a pulley group 18, the pulley group 18 is located below the lifting plate 14.

[0033] During the replacement operation, the inclined bracket arm can be inserted between the clamping rod 13 and the clamping plate 12 first, and then the clamp 1 can be installed. The extension length of the inner tube 6 can be adjusted. Then the rotating rod 17 can be rotated, so that the pulley group 18 drives the lifting screw 16 to rotate, thereby causing the lifting plate 14 to move longitudinally. The clamping rod 13 moves downward and passes through the clamping plate 12, thereby installing and fixing the inclined bracket arm. There is no need for the staff to lean out to operate, which effectively improves the safety of insulator replacement and helps to reduce the risk of falling from height.

[0034] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A non-supported inclined bracket insulator replacement device, comprising a clamp (1), characterized in that: Two bolts are threaded through the right end of the clamp (1), and a mounting base (3) is fixedly connected to the left end of the clamp (1). An adjusting bracket (4) is rotatably connected to the left end of the mounting base (3). An outer tube (5) is fixedly connected to the end of the adjusting bracket (4) away from the mounting base (3). An inner tube (6) is slidably connected to the inner cavity of the outer tube (5). A positioning plate (7) is fixedly connected to the inner wall of the outer tube (5). An adjusting screw (8) is rotatably passed through the inside of the positioning plate (7). The left end of the adjusting screw (8) moves through the inner tube. (6) An adjusting block (9) is threaded inside the inner tube (6). The outer surface of the adjusting block (9) is fixedly connected to the inner wall of the inner tube (6). A positioning block (10) is fixedly connected to the upper end of the inner tube (6). An installation plate (11) is fixedly connected to the front end of the positioning block (10). A clamp is installed on the upper end of the installation plate (11) and the positioning block (10). The clamp includes a clamp plate (12) fixedly installed on the upper end of the installation plate (11) and the positioning block (10). Two clamp rods (13) are movably passed through the upper end of the clamp plate (12).

2. The non-supported inclined bracket insulator replacement device according to claim 1, characterized in that: The opening of the card plate (12) faces downward, the longitudinal section of the card rod (13) is U-shaped, and the outer surface of the card rod (13) is movably fitted with a card block (2).

3. The non-supported inclined bracket insulator replacement device according to claim 2, characterized in that: The card block (2) and the card rod (13) are fixedly connected by bolts, and the lower end of the card block (2) is in contact with the upper end of the card plate (12).

4. The non-supported inclined bracket insulator replacement device according to claim 1, characterized in that: The opening of the card plate (12) faces upward, the longitudinal section of the card rod (13) is an inverted J-shape, the long ends of the two card rods (13) are fixedly connected to the lifting plate (14), the positioning block (10) has an adjustment hole (15), the front end of the lifting plate (14) moves through the adjustment hole (15), the lower end of the mounting plate (11) is rotatably connected to the lifting screw (16), and the lower end of the lifting screw (16) is threaded through the lifting plate (14).

5. The non-supported inclined bracket insulator replacement device according to claim 4, characterized in that: The front end of the outer tube (5) is fixedly connected to a fixing plate, and the lower end of the fixing plate is rotatably connected to a rotating rod (17). The lifting screw (16) and the rotating rod (17) are fitted together with a pulley group (18).

6. The non-supported inclined bracket insulator replacement device according to claim 5, characterized in that: The pulley assembly (18) is located below the lifting plate (14). The lifting plate (14) has a convex cross-section, and both the left and right ends of the lifting plate (14) are in contact with the inner wall of the adjustment hole (15).

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