CN207074824U - For changing the device of strain insulator - Google Patents

Abstract

The utility model discloses a kind of device for being used to change strain insulator, including for changing the wing type clamp apparatus of strain insulator string and closed type fixture for changing single chip tension insulator, the wing type clamp apparatus includes the cross-arm-end card of strain insulator string cross-arm-end towing plate installation connection and the conductor wire end card of the parallel hanging plate of the strain insulator string conductor wire end with being replaced installation connection with being replaced, cross-arm-end card and conductor wire end card are bi-wing configuration, and are connected respectively by telescoping mechanism between cross-arm-end card and the corresponding wing of conductor wire end card.The utility model, which integrates, changes first strain insulator string, single chip tension insulator, first strain insulator of cross-arm-end and conductor wire end strain insulator as kit, not only operation job safety, the working strength of operator is alleviated, and is easy to instrument transport to preserve.

Description

Device for replacing tension insulators

technical field

The utility model belongs to the technical field of transmission line maintenance, in particular to a device for replacing strain insulators.

Background technique

Replacement of tension insulator strings and single-piece tension insulators is a common task in line maintenance operations. For a long time, replacement of tension insulator strings, single-piece tension insulators, the first piece of tension insulator at the cross-arm end and the first piece of wire end The tools for sheet tension insulators are all separate tools.

One of the disadvantages of this method is that the tools for replacing the tension insulator strings and single-piece tension insulators are very complicated, which brings a lot of complicated work to the transportation, storage and operation of the tools. The work intensity of the operator to replace the tension insulator string and the single piece of the tension insulator is increased. The second is that there is no secondary protection mechanism when replacing the single-piece tension insulator, the first piece of tension insulator at the cross-arm end, and the first piece of tension insulator at the lead end, which brings hidden dangers to the safety of maintenance operations. The third is to replace the bottle holder used in the tension insulator string, which is long, heavy and cannot be folded, which brings great inconvenience to the maintenance operation.

Utility model content

The utility model provides a device for replacing strain insulators, which includes the replacement of a string of strain insulators, a single strain insulator, the first strain insulator at the cross-arm end and the first strain insulator at the wire end as a complete set of tools. Not only is the operation safe, the operator's work intensity is reduced, and it is convenient for tool transportation and storage.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the device for replacing the strain insulator includes the airfoil fixture for replacing the strain insulator string and the closed clamp for replacing the single-piece strain insulator. Fixture, the wing-shaped fixture includes a crossarm end clamp installed and connected to the traction plate at the cross-arm end of the replaced tension insulator string and a wire end clamp installed and connected to the wire end of the replaced tension insulator string on a parallel hanging plate , the cross-arm end card and the wire end card are double-wing structures, and the corresponding wings of the cross-arm end card and the wire end card are respectively connected by telescopic mechanisms;

The closed clamp includes a closed clamp front clamp and/or a closed clamp rear clamp and two closed clamp screw screws arranged side by side;

The cross-arm end card is provided with a cross-arm end card joint corresponding to the closed card screw; the wire end card is provided with a wire end card joint corresponding to the closed card screw;

The front end of the closed card screw is connected to the corresponding closed card front card or crossarm end card joint; the rear end of the closed card screw is connected to the corresponding closed card rear card or wire end card joint.

The telescopic mechanism includes an airfoil clamp screw and a pull plate. The front end of the airfoil clamp screw is connected to the corresponding wing of the cross arm end card through a reversing joint, and the rear end of the airfoil clamp screw is connected to the front end of the pull plate through a reversing joint. Connection, the rear end of the pull plate is connected to the corresponding wing of the wire end card through a reversing joint.

The front end of the closed card screw is connected to the corresponding closed card front card or cross-arm end card joint through a reversing joint; the rear end of the closed card screw is connected to the corresponding closed card rear card or wire end The card joints are connected by reversing joints.

The airfoil clamp screw is a hydraulic screw.

A support mechanism for supporting the replaced tension insulator string is provided between the pull plates corresponding to the two telescopic mechanisms. The joint includes a mounting seat fixedly connected to the end of the corresponding elbow, a slot for passing through the pull plate is provided on the mounting seat, and a sealing screw is provided at the opening of the slot.

The elbow is a V-shaped structure with the opening facing upwards.

The beneficial effects of the utility model:

The utility model integrates the replacement of tension insulator strings, single-piece tension insulators, the first piece of tension insulator at the cross-arm end and the first piece of tension insulator at the wire end as a complete set of tools, which not only makes the operation safe, but also reduces the work intensity of the operator. , and it is convenient for tool transportation and storage.

The utility model includes four working states through the above-mentioned technical scheme:

The first type is used to replace the tension insulator string, and the airfoil fixture works alone at this time. During operation, the cross-arm end clamp is installed and connected with the traction plate at the cross-arm end of the replaced tension insulator string, the wire end clamp is installed and connected with the replaced tension insulator string wire end in parallel with the hanging plate, and the airfoil clamp is controlled by the airfoil The clamp screw shrinks to realize the loosening of the tension insulator string, and then completes the replacement of the tension insulator string.

The second type is to replace the single-piece tension insulator. At this time, the front end of the closed card screw is connected with the corresponding closed card front card, and the rear end of the closed card screw is connected with the corresponding closed card rear card. The closed jig and the airfoil jig work together in a movable manner. During the operation, the tension insulator strings are loosened first through the airfoil clamp, and then the closed clamp is clamped with the two adjacent tension insulators before and after the replaced tension insulator, and then the closed clamp screw is used to shrink. The replaced tension insulator is loosened, and then the replacement of the single-piece tension insulator is completed.

The third is to replace the first tension insulator at the cross-arm end. At this time, the front end of the closed clamp screw is connected to the corresponding cross-arm end clamp joint, and the rear end of the closed clamp screw is connected to the corresponding closed clamp The rear clamp is connected, the closed clamp and the front clamp do not participate in the operation, and the closed clamp and the airfoil clamp are connected to cooperate with each other. During the operation, the tension insulator strings are loosened by using the airfoil clamp first. At this time, since there is no adjacent tension insulator on the front side of the first tension insulator at the cross-arm end, the front end of the closed clamp screw and the cross-arm The end card connector is connected, and the closed card rear card is clamped with the tension insulator adjacent to the rear side of the replaced tension insulator, and then the replaced tension insulator is loosened through the contraction of the closed card screw, and then the cross arm is completed Replacement of the first tensile insulator at the terminal.

The fourth type is used to replace the first tension insulator at the wire end. At this time, the front end of the closed clamp screw is connected to the corresponding closed clamp front clamp, and the rear end of the closed clamp screw is connected to the corresponding wire end clamp connector. Connection, the closed clamp does not participate in the operation after the clamp, and the closed clamp and the airfoil clamp are connected to cooperate with each other. During the operation, the tension insulator strings are first loosened by using the airfoil fixture. At this time, since there is no adjacent tension insulator on the rear side of the first tension insulator at the wire end, the rear end of the closed clamp screw is connected to the wire end. The card connector is connected, the front card of the closed card is connected with the tension insulator adjacent to the front side of the replaced tension insulator, and then the replaced tension insulator is loosened by shrinking the screw of the closed card, and then the first wire end is completed. Replacement of a piece of tension insulator.

In the utility model, a support mechanism for supporting the replaced tension insulator string is also provided between the pull plates corresponding to the two telescopic mechanisms. The support joint includes a mounting base fixedly connected to the end of the corresponding elbow, a slot for passing through the pull plate is provided on the mounting base, and a sealing screw is provided at the opening of the slot. Due to the existence of the support mechanism, when the tension insulator string is loose, the support mechanism supports the tension insulator string, and removes the insulator that needs to be replaced for replacement.

The bent pipe is a V-shaped structure with the opening facing upwards, so as to adapt to tension insulator strings of different specifications.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the schematic diagram of cross-arm end card in the utility model;

Fig. 3 is the schematic diagram of wire end card in the utility model;

Fig. 4 is the schematic diagram of the airfoil clamp screw in the utility model;

Fig. 5 is the schematic diagram of drawing plate in the utility model;

Fig. 6 is a schematic diagram of the closed clamp of the utility model;

Fig. 7 is the schematic diagram of reversing joint in the utility model;

Fig. 8 is the schematic diagram of support mechanism in the utility model;

FIG. 9 is a top view of FIG. 8 .

Detailed ways

As shown in Figures 1 to 7, the device for replacing tension insulators of the present invention includes airfoil clamps for replacing strings of tension insulators and closed clamps for replacing single-piece tension insulators. The airfoil clamp includes a cross arm end card 1 installed and connected to the traction plate at the cross arm end of the replaced tension insulator string and a wire end card installed and connected to the replaced tension insulator string wire end in parallel with the hanging plate 7. Both the cross-arm end card 1 and the wire end card 7 are double-wing structures, and the corresponding wings of the cross-arm end card 1 and the wire end card 7 are respectively connected by telescopic mechanisms.

The telescoping mechanism includes an airfoil card screw 3 and a pull plate 4. The front end of the airfoil card screw 3 is connected to the corresponding wing of the cross arm end card 1 through a reversing joint, and the rear end of the airfoil card screw 3 is connected to the pull plate. 4. The front end is connected through a reversing joint, and the rear end of the pull plate 4 is connected with the corresponding wing of the wire end card 7 through a reversing joint.

The closed clamp includes a closed clamp front clamp 10 and/or a closed clamp rear clamp 8 and two closed clamp lead screws 9 arranged side by side.

The cross-arm end card 1 is provided with a cross-arm end card joint 2 corresponding to the closed card screw 7; the wire end card 7 is provided with a wire end card joint corresponding to the closed card screw 9 6.

The front end of the closed card screw 9 is connected to the corresponding closed card front card 10 or the cross arm end card joint 2 through a reversing joint; the rear end of the closed card screw 9 is connected to the corresponding closed card rear The card 8 or the wire end card joint 6 is connected by a reversing joint.

The airfoil clamp screw in this embodiment is a hydraulic screw.

The utility model integrates the replacement of tension insulator strings, single-piece tension insulators, the first piece of tension insulator at the cross-arm end and the first piece of tension insulator at the wire end as a complete set of tools, which not only makes the operation safe, but also reduces the work intensity of the operator. , and it is convenient for tool transportation and storage.

The utility model includes four working states through the above-mentioned technical scheme:

The first type is used to replace the tension insulator string, and the airfoil fixture works alone at this time. During operation, the cross-arm end card 1 is installed and connected with the replaced tension insulator string 11 cross-arm end traction plate, the wire end card 7 is installed and connected with the replaced tension insulator string 11 wire end parallel hanging plate, and the wing clamp By controlling the contraction of the airfoil card lead screw 3, the tension insulator strings are loosened, and the replacement of the tension insulator strings is completed. This working state is not shown in separate drawings.

The second type is used to replace the single-piece tension insulator. At this time, the front end of the closed card screw 9 is connected to the corresponding closed card front card 10, and the rear end of the closed card screw 9 is connected to the corresponding closed card rear end. The clamps are connected by 8, and the closed clamps and the airfoil clamps work together in a movable manner. During operation, the tension insulator string 11 is first loosened by the airfoil clamp, and then the closed clamp is clamped with the two adjacent tension insulators before and after the replaced tension insulator, and then the closed clamp screw 9 Shrinkage realizes the loosening of the replaced tension insulator, and then completes the replacement of the single-piece tension insulator. The working state is shown in Figure 1.

The third type is to replace the first tension insulator at the cross-arm end. At this time, the front end of the closed clamp screw 9 is connected to the corresponding cross-arm end clamp joint 2, and the rear end of the closed clamp screw 9 is connected to the corresponding The back clamp 8 of the closed clamp is connected, the front clamp 10 of the closed clamp does not participate in the operation, and the closed clamp and the airfoil clamp are connected to cooperate in the operation. During the operation, the strain insulator string 11 is first loosened by using the airfoil fixture. At this time, since there is no adjacent strain insulator on the front side of the first strain insulator at the cross-arm end, the front end of the closed clamp screw 9 is in contact with the The cross-arm end clip connector 2 is connected, and the closed clip rear clip 8 is clipped to the tension insulator adjacent to the rear side of the replaced tension insulator, and then the replaced tension insulator is loosened by shrinking the closed clip lead screw 9 , and then complete the replacement of the first tension insulator at the cross-arm end. This working state is not shown in separate drawings.

The fourth type is used to replace the first tension insulator at the wire end. At this time, the front end of the closed card screw 9 is connected to the corresponding closed card front card 10, and the rear end of the closed card screw 9 is connected to the corresponding wire. The end card joint 6 is connected, and the closed card rear card 8 does not participate in the operation, and the closed clamp and the airfoil clamp are connected and cooperate with each other. During the operation, the tension insulator string 11 is first loosened by the airfoil clamp. At this time, since there is no adjacent tension insulator on the rear side of the first tension insulator at the lead end, the rear end of the closed clamp screw 9 is connected to the The wire end clamp connector 6 is connected, and the closed clamp front clamp 10 is clamped with the tension insulator adjacent to the front side of the replaced tension insulator, and then the replaced tension insulator is loosened by shrinking the closed clamp lead screw 9, Then complete the replacement of the first tension insulator at the wire end. This working state is not shown in separate drawings.

In addition, as shown in Fig. 8 and Fig. 9, in this embodiment, a support mechanism (ie, a bottle holder) for supporting the replaced strain insulator string 11 is provided laterally between the pull plates 4 corresponding to the two telescopic mechanisms, A plurality of supporting mechanisms are evenly distributed along the front and rear directions, and are used in conjunction with the airfoil clamps during use. The support mechanism includes an elbow 41 and a support joint arranged at both ends of the elbow 41 for connecting with the pull plate. The support joint includes a mounting seat 42 fixedly connected to the end of the corresponding elbow, and the mounting seat 42 is provided with a Over the draw-in slot 43 of the drawing plate 4, the mouth of the draw-in slot 43 is provided with a sealing screw 44. Due to the existence of the support mechanism, when the tension insulator string is loose, the support mechanism supports the tension insulator string 11, and the insulator to be replaced is removed for replacement.

The bend pipe 41 is a V-shaped structure with the opening facing upwards, so as to adapt to tension insulator strings of different specifications.

The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (6)

1. A device for replacing strain insulators, including an airfoil clamp for replacing a string of strain insulators and a closed clamp for replacing a single piece of strain insulator, characterized in that: the wing clamp The tool includes the cross-arm end card installed and connected with the traction plate at the cross-arm end of the replaced tension insulator string, the wire end card installed and connected with the replaced tension insulator string wire end in parallel with the hanging plate, the cross-arm end card and the wire end The cards are of double-wing structure, and the corresponding wings of the cross-arm end card and the wire end card are respectively connected by telescopic mechanisms; The closed clamp includes a closed clamp front clamp and/or a closed clamp rear clamp and two closed clamp screw screws arranged side by side; The cross-arm end card is provided with a cross-arm end card joint corresponding to the closed card screw; the wire end card is provided with a wire end card joint corresponding to the closed card screw; The front end of the closed card screw is connected to the corresponding closed card front card or crossarm end card joint; the rear end of the closed card screw is connected to the corresponding closed card rear card or wire end card joint. 2. The device for replacing strain insulators according to claim 1, characterized in that: the telescopic mechanism includes an airfoil clamp screw and a pull plate, and the front end of the airfoil clamp screw is connected to the corresponding wing of the cross-arm end clamp. Connected by a reversing joint, the rear end of the airfoil card screw is connected with the front end of the pull plate through a reversing joint, and the rear end of the drawing plate is connected with the corresponding wing of the wire end card through a reversing joint. 3. The device for replacing tension insulators according to claim 1 or 2, characterized in that: the front end of the closed card screw and the corresponding closed card front card or cross-arm end card joint are reversed Joint connection; the rear end of the closed card lead screw is connected to the corresponding closed card rear card or wire end card joint through a reversing joint. 4. The device for replacing tension insulators according to claim 3, characterized in that: the airfoil clamp screw is a hydraulic screw. 5. The device for replacing tension insulators according to claim 2, characterized in that: a support mechanism for supporting the string of tension insulators to be replaced is provided between the pull plates corresponding to the two telescopic mechanisms, and the support The mechanism includes an elbow and support joints arranged at both ends of the elbow for connecting with the pull plate. The support joint includes a mounting seat fixedly connected to the end of the corresponding elbow, and the mounting seat is provided with a slot for passing through the pull plate. A sealing screw is provided at the slot of the card. 6. The device for replacing tension insulators according to claim 5, characterized in that: the bend pipe is a V-shaped structure with its opening facing upward.