CN217388045U

CN217388045U - Universal fixture for replacing insulator

Info

Publication number: CN217388045U
Application number: CN202220822451.3U
Authority: CN
Inventors: 何智; 李安若; 何度; 姚佳莹; 龙庭; 项魁; 童治芳; 吴颖; 郭伟; 谢志宏; 盛伟; 陈兰
Original assignee: State Grid Corp of China SGCC; State Grid Hunan Electric Power Co Ltd; Yiyang Power Supply Co of State Grid Hunan Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Hunan Electric Power Co Ltd; Yiyang Power Supply Co of State Grid Hunan Electric Power Co Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-09-06
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a change insulator general purpose fixture, including a pair of holding card and a pair of accommodate the lead screw between them, the holding card includes shell and inner bag, and the shell includes the movable casing of fixed casing and its articulated lock, forms a complete round hole after their lock is fixed, and the inner bag is split type structure, can dismantle through the fastener and be fixed in the round hole, and the axial centre bore of inner bag is used for pressing from both sides tight insulator steel cap, and the axial centre bore aperture of inner bag is adjustable. The fixture has the advantages that the shell is designed into the fixed shell and the movable shell which are hinged and buckled, the installation is convenient, the inner container of a split type structure is arranged in the axial round hole of the shell, the insulator steel cap is clamped through the inner container, the aperture of the axial center hole of the inner container is adjustable, and therefore the fixture can be suitable for insulator steel caps of different specifications and has universality.

Description

Universal clamp for replacing insulator

Technical Field

The utility model belongs to transmission line changes insulator multiplexer utensil field specifically is a change insulator universal fixture.

Background

Insulators are devices that can withstand the action of voltage and mechanical stress, mounted between conductors of different electrical potentials or between a conductor and a grounded member. Insulators are various in types and shapes. The different types of insulators have great differences in structure and appearance. Insulator closed card changer mainly is the change that is used for monolithic fault glass insulator, compares in changing monolithic fault glass insulator with panel calabash or chain calabash, and the power worker prefers to choose for use the insulator closed card changer that the security is higher, more portable.

However, different manufacturers of glass insulators select different types of steel materials when the manufacturers produce the glass insulators, so that the sizes of steel caps of the insulators are greatly different, and the steel caps of the insulators are main stress components of the closed type insulator card replacers. The old insulator closed card changer cannot be perfectly applied to all insulators on the market. Therefore, the electric power worker can use the old handbrake hoist when replacing the insulator.

With the development of the power industry, the progress of new materials and new technologies, the requirements of portability and versatility of live-line work for replacing zero-value (or damaged) insulator tools are increasingly highlighted. According to the standard requirements of DL463-1992 and DL488-1992 for charging operation and device-shaped insulator clamps, the old type single-chip clamp can only be used for replacing insulators with one type and specification, so that power supply enterprises need to spare a plurality of clamps, and some clamps cannot be used after being selected improperly or due to size errors, so that the clamps cannot be used on site, and the waste of manpower and financial resources is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a change insulator universal fixturing with commonality.

The utility model provides a change insulator universal fixture, including a pair of holding card and a pair of accommodate the lead screw between them, the holding card includes shell and inner bag, and the shell includes the movable casing of fixed casing and its articulated lock, and their lock forms a complete round hole after fixed, and the inner bag is split type structure, can dismantle through the fastener and be fixed in the round hole, and the axial centre bore of inner bag is used for pressing from both sides tight insulator steel cap, and the axial centre bore aperture of inner bag is adjustable.

In an embodiment of the above fixture, the fixed housing includes a middle arc section and two ear plates symmetrically disposed at two sides of the middle arc section and used for connecting the adjusting screw rod, and a pair of ear plates symmetrically disposed at upper sides of two ends of the arc section and used for connecting the movable housing.

In an embodiment of the above fixture, the movable housing includes a middle arc section, a hinged seat at one end of the lower side of the middle arc section, and a positioning seat at the other end of the middle arc section, and the outer ends of the lower side and the upper side of the positioning seat are provided with positioning clamping grooves.

In an embodiment of the above fixture, the inner walls of the arc sections of the fixed shell and the movable shell are convex-head-shaped curved surfaces.

In one embodiment of the above fixture, the inner container includes a plurality of arc-shaped bodies, and the outer walls of the arc-shaped bodies are concave head-shaped curved surfaces matched with the convex head-shaped mounting grooves.

In an embodiment of the fixture, when the inner container is assembled with the fixed shell and the movable shell, the concave head-shaped curved surface of each arc-shaped body is matched with the convex head-shaped curved surface, the same gap is formed between adjacent arc-shaped bodies, and the arc-shaped bodies are fixed with the fixed shell or the movable shell through radial bolts.

In an embodiment of the fixture, the fixed shell and the movable shell are respectively provided with a radial threaded hole for installing the radial bolt, a position of the outer surface of the arc-shaped body corresponding to the radial bolt is provided with a plane, and the tail end of the rod body of the radial bolt is fixed on the plane.

In an embodiment of the fixture, when the movable housing is assembled with the fixed housing, the hinge seat of the movable housing is clamped between the ear plates at one end of the arc section of the fixed housing and is hinged through the straight pin shaft, the positioning seat is clamped between the ear plates at the other end and is positioned through the T-shaped pin shaft, and the nut is locked.

The fixture has the advantages that the shell is designed into the fixed shell and the movable shell which are hinged and buckled, the installation is convenient, the inner container of a split type structure is arranged in the axial round hole of the shell, the insulator steel cap is clamped through the inner container, the aperture of the axial center hole of the inner container is adjustable, and therefore the fixture can be suitable for insulator steel caps of different specifications and has universality.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the axial measurement structure of the clamp of fig. 1.

Fig. 3 is a schematic structural view of fig. 2 with the movable housing removed.

FIG. 4 is an assembled view of the arcuate body of the stationary housing and bladder of FIG. 3.

Fig. 5 is a schematic structural view of the stationary housing in fig. 4.

Fig. 6 is a schematic structural view of the movable housing in fig. 2.

Detailed Description

As shown in fig. 1, the universal fixture for insulator replacement disclosed in this embodiment includes a pair of clamping clips 1 and a pair of adjusting screws 2 therebetween.

As can be seen in conjunction with fig. 2 to 6:

the clamping card 1 comprises a shell and an inner container, wherein the shell comprises a fixed shell 11 and a movable shell 12 which is hinged and buckled with the fixed shell, and a complete round hole is formed after the fixed shell and the movable shell are buckled and buckled.

The inner bag includes polylith arc body 13, and polylith arc body 13 is fixed in the round hole of shell through radial fastener, and gapped between the adjacent arc body, the axial centre bore that each arc body encloses is adjusted to the accessible fastener, presss from both sides the insulator steel cap of tight different specifications through the axial centre bore of different diameters.

The fixed shell 11 comprises a middle arc section and lug plates which are symmetrically arranged on two sides of the middle arc section and are used for being connected with the adjusting screw rod 2, and a pair of lug plates which are used for being connected with the movable shell 12 are symmetrically arranged on the upper sides of two ends of the arc section.

The movable shell 12 comprises a middle arc section, a hinged seat at one end of the lower side of the middle arc section, and a positioning seat at the other end of the middle arc section, and positioning grooves are formed in the outer ends of the lower side and the upper side of the positioning seat.

The inner walls of the arc sections of the fixed shell 11 and the movable shell 12 are convex head-shaped curved surfaces.

The outer wall of the arc-shaped body 13 is a concave head-shaped curved surface matched with the convex head-shaped curved surface.

When the plurality of arc bodies 13 are assembled with the fixed shell 11 and the movable shell 12, the concave letter head-shaped curved surface of each arc body is matched with the convex letter head-shaped curved surface, the same gap is reserved between the adjacent arc bodies, and the arc bodies are fixed with the fixed shell or the movable shell through radial bolts (not shown in the figure).

Radial threaded holes are formed in the fixed shell 11 and the movable shell 12, a screw rod of a radial bolt penetrates through the radial threaded holes in the fixed shell 11 and the movable shell 12 and then is fixed with the arc-shaped body 13, and the outer surface of the arc-shaped body is processed into a plane at the position corresponding to the fixed position of the radial bolt. The position change between the arc-shaped bodies and the fixed shell and the movable shell can be realized by rotating the radial bolts, so that the change of the aperture of the axial central hole of the inner container enclosed by the arc-shaped bodies is realized.

When the movable shell 12 is assembled with the fixed shell 11, the hinged seat of the movable shell 12 is clamped between the ear plates at one section end of the arc section of the fixed shell 11 and is hinged through the straight pin shaft 14, the positioning seat is clamped between the ear plates at the other end and is positioned through the T-shaped pin shaft 15, and the nut is locked.

The inner bag design is polylith arc body, and adopts unsmooth tenon fourth of the twelve earthly branches structure assembly between the shell, simple to operate, and the radial bolt of monolithic arc body accessible is adjusted alone, can avoid the eccentric atress of arc body. The concave-convex mortise and tenon structure assembly is adopted between the arc-shaped body and the shell, so that the aperture of the axial center hole of the inner container can be increased for adjustment, and the application range is wider.

The shell adopts that one end is articulated between fixed casing and the movable casing, and the other end adopts the joint locking, makes the shell connect after the assembly inseparabler, and it is littleer to rock the space, improves the stability of centre gripping card in the use.

Claims

1. The utility model provides a change insulator universal fixturing, includes a pair of holding card and a pair of accommodate the lead screw between them which characterized in that: the clamping clamp comprises a shell and an inner container, the shell comprises a fixed shell and a movable shell which is hinged and buckled with the fixed shell, the fixed shell and the movable shell form a complete round hole after being buckled and fixed, the inner container is of a split structure and can be detachably fixed in the round hole through a fastening piece, an axial center hole of the inner container is used for clamping an insulator steel cap, and the aperture of the axial center hole of the inner container is adjustable.

2. The universal fixture for replacing insulators of claim 1, wherein: the fixed shell comprises a middle arc section and two lateral symmetry parts of the middle arc section and is used for being connected with the ear plates of the adjusting screw rod, and a pair of ear plates of the movable shell is symmetrically arranged on the upper sides of two ends of the arc section and is used for being connected with the ear plates of the movable shell.

3. The universal fixture for replacing insulators of claim 2, wherein: the movable shell comprises a middle arc section, a hinged seat at one end of the lower side of the middle arc section, and a positioning seat at the other end of the middle arc section, and positioning clamping grooves are formed in the outer ends of the lower side and the upper side of the positioning seat.

4. The universal fixture for replacing insulators of claim 3, wherein: the inner walls of the arc sections of the fixed shell and the movable shell are convex head-shaped curved surfaces.

5. The universal fixture for replacing insulators of claim 4, wherein: the inner container comprises a plurality of arc-shaped bodies, and the outer walls of the arc-shaped bodies are concave head-shaped curved surfaces matched with the convex head-shaped mounting grooves.

6. The universal fixture for replacing insulators of claim 5, wherein: when the inner container is assembled with the fixed shell and the movable shell, the concave head-shaped curved surface of each arc-shaped body is matched with the convex head-shaped curved surface, the same gap is reserved between the adjacent arc-shaped bodies, and the arc-shaped bodies are fixed with the fixed shell or the movable shell through radial bolts.

7. The universal fixture for replacing insulators of claim 6, wherein: the fixed shell and the movable shell are respectively provided with a radial threaded hole for installing the radial bolt, the position of the outer surface of the arc-shaped body, corresponding to the radial bolt, is provided with a plane, and the tail end of the rod body of the radial bolt is fixed at the plane.

8. The universal fixture for replacing insulators of claim 3, wherein: when the movable shell is assembled with the fixed shell, the hinged seat of the movable shell is clamped between the ear plates at one section end of the arc section of the fixed shell and is hinged through a straight pin shaft, the positioning seat is clamped between the ear plates at the other end and is positioned through a T-shaped pin shaft, and the nut is locked.