CN211046205U

CN211046205U - Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker

Info

Publication number: CN211046205U
Application number: CN201921669446.8U
Authority: CN
Inventors: 周德波; 李正福; 马宏明; 韦朝奥; 张可; 李伟; 韩凌云; 杨云锋
Original assignee: Dali Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Dali Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-07-17
Anticipated expiration: 2029-10-08

Abstract

The utility model provides a special combination tool for dismouting of handcart-type circuit breaker plum blossom contact spring relates to electric power appurtenance technical field, including body and flexible subassembly, the body comprises four metal connecting rods, metal pressing plate (little) and metal pressing plate (big) welding, plays the effect that supports flexible subassembly activity, flexible subassembly includes hand wheel, trapezoidal lead screw, supporting disk, fork driving lever and push rod, through rotating the hand wheel makes the push rod produces the displacement, places the spring to plum blossom contact circular and stretches. The utility model discloses the operation is reliable, and dismouting contact spring efficiency improves by a wide margin.

Description

Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker

Technical Field

The utility model belongs to the technical field of electric power appurtenance, particularly, relate to a special combination tool that is used for dismouting of handcart-type circuit breaker plum blossom contact spring.

Background

At present, when a contact spring of a handcart type circuit breaker is replaced by a power transformation maintainer, due to the special structure, stress of a spring component and the like, a common tool can be injured by limbs when the tool is improperly used in the process of replacing the spring.

Meanwhile, due to the special structure, the contact finger structure of the tulip contact can be damaged by a common tool in the process of replacing the spring, and the silver coating on the surface of the contact finger is irreversibly scratched.

In the process of replacing the contact spring of the handcart type circuit breaker by a power transformation maintainer, the contact spring is fixed by common tool structures such as tiger-mouth pliers, the mechanism of the contact spring is not adaptive, the disassembly and assembly process consumes time and labor, and although the replacement operation can still be carried out, the replacement efficiency cannot be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special combination tool for handcart-type circuit breaker plum blossom contact spring dismouting for the man-hour that the contact spring of maintainer to handcart-type circuit breaker changed shortens greatly.

The special tool is safer in use, and the personal safety protection of replacement personnel is further improved; the safety of installation equipment is guaranteed to the utmost extent in the use, and the installation risk is reduced.

The utility model discloses a realize through following technical scheme:

the utility model provides a special combination tool for dismouting of handcart-type circuit breaker plum blossom contact spring, includes body and flexible subassembly, the body comprises four metal connecting rods, first metal pressing plate and the welding of second metal pressing plate, plays the effect that supports the activity of flexible subassembly, flexible subassembly includes hand wheel, trapezoidal lead screw, supporting disk, fork driving lever and push rod, the hand wheel with the top fixed connection of trapezoidal lead screw, be equipped with trapezoidal nut on the trapezoidal lead screw, trapezoidal nut with the inner circle fixed connection of supporting disk, the outer lane of supporting disk pass through the pivot with the one end swing joint of fork driving lever, the other end of fork driving lever pass through the pivot with the one end swing joint of push rod, the other end that the fork driving lever was kept away from to the push rod passes through pivot and second metal pressing plate swing joint.

Furthermore, the hand wheel is fixedly connected with the trapezoidal screw rod, and the trapezoidal nut can be axially moved by rotating the hand wheel.

Furthermore, the supporting disc and the trapezoidal nut are fixedly installed and can move axially synchronously.

Furthermore, the supporting disc is connected with the fork driving lever through a shaft pin, and the fork driving lever can rotate by taking the shaft pin as a central point.

Furthermore, the fork deflector rod is connected with the push rod through a shaft pin, one end of the push rod is fixed with the second metal pressing plate through the shaft pin, and the fixing position of the shaft pin can rotate in a limited way.

Furthermore, a deep groove ball bearing is arranged at the tail end of the trapezoidal screw rod.

Furthermore, the body is formed by welding and fixing the first metal pressing plate and the second metal pressing plate at equal intervals through four metal connecting rods.

The utility model has the advantages that: the efficiency of handcart-type circuit breaker plum blossom contact spring dismouting is improved, the dismouting time is shortened greatly, the safety of the personal and equipment of protection simultaneously.

Drawings

For a clearer explanation of the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the body of the present invention.

Icon: 110-a hand wheel; 120-trapezoidal lead screw; 130-trapezoidal nut; 140-a support disk; 150-deep groove ball bearing; 160-fork deflector rod; 170-push rod; 210-a first metal platen; 220-a metal link; 230-second metal platen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the embodiment provides a special combination tool 100 for disassembling and assembling a tulip contact spring of a handcart type circuit breaker, the special combination tool 100 includes a body and a telescopic assembly, the body is formed by welding four metal connecting rods 220, a first metal pressing plate 210 and a second metal pressing plate 230, and plays a role of supporting the telescopic assembly to move, the telescopic assembly includes a hand wheel 110, a trapezoidal screw rod 120, a supporting plate 140, a fork shift lever 160 and a push rod 170, the hand wheel 110 is fixedly connected with the top end of the trapezoidal screw rod 120, a trapezoidal nut 130 is arranged on the trapezoidal screw rod 120, the trapezoidal nut 130 is fixedly connected with an inner ring of the supporting plate 140, an outer ring of the supporting plate 140 is movably connected with one end of the fork shift lever 160 through a shaft pin, the other end of the fork shift lever 160 is movably connected with one end of the push rod 170 through a shaft pin, the other end of the push rod 170 far away from the, by rotating the hand wheel 110, the push rod 170 is displaced to stretch the circular spring of the tulip contact.

Further, the hand wheel 110 is fixedly connected to the trapezoidal screw rod 120, and the trapezoidal nut 130 can be axially moved by rotating the hand wheel 110.

Further, the support plate 140 is fixedly installed with the trapezoidal nut 130, and can move axially in a synchronous manner.

Further, the support plate 140 is connected to the fork lever 160 through a shaft pin, and the fork lever 160 can rotate around the shaft pin as a center point.

Further, the fork lever 160 is connected to the push rod 170 through a shaft pin, one end of the push rod 170 is fixed to the second metal pressing plate 230 through the shaft pin, and the shaft pin fixing positions can rotate 180 °.

Further, the tail end of the trapezoidal screw rod 120 is provided with a deep groove ball bearing 150 for limiting the trapezoidal nut 130.

Further, the body is formed by welding and fixing the first metal pressing plate 210 and the second metal pressing plate 230 at equal intervals through four metal connecting rods 220.

Furthermore, the end of the push rod 170 is provided with a spring guide groove, so that the spring can be prevented from sliding and falling off in the process of disassembling the spring.

Further, the material of the body and the telescopic component comprises one of Q235 steel and 1Cr17 stainless steel.

The embodiment of the utility model provides a beneficial effect is: the efficiency of handcart-type circuit breaker plum blossom contact spring dismouting is improved, the dismouting time is shortened greatly, the safety of the personal and equipment of protection simultaneously.

Claims

1. The utility model provides a special combination tool for dismouting of handcart-type circuit breaker plum blossom contact spring, includes body and flexible subassembly, its characterized in that, the body comprises four metal connecting rods (220), first metal pressing plate (210) and second metal pressing plate (230) welding, plays the effect that supports flexible subassembly activity, flexible subassembly includes hand wheel (110), trapezoidal lead screw (120), supporting disk (140), fork driving lever (160) and push rod (170), hand wheel (110) with the top fixed connection of trapezoidal lead screw (120), be equipped with trapezoidal nut (130) on trapezoidal lead screw (120), trapezoidal nut (130) with the inner circle fixed connection of supporting disk (140), the outer lane of supporting disk (140) pass through the pivot with the one end swing joint of fork driving lever (160), the other end of fork driving lever (160) pass through the pivot with the one end swing joint of push rod (170), the other end of the push rod (170) far away from the fork deflector rod (160) is movably connected with a second metal pressing plate (230) through a shaft pin.

2. The special combination tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the hand wheel (110) is fixedly connected with the trapezoidal lead screw (120), and the trapezoidal nut (130) can be axially moved by rotating the hand wheel (110).

3. The special combination tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the supporting disk (140) is fixedly connected with the trapezoidal nut (130) and can move axially synchronously.

4. The special combination tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the supporting plate (140) is connected with the fork lever (160) through a shaft pin, and the fork lever (160) can rotate by taking the shaft pin as a central point.

5. The special combination tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the fork deflector rod (160) is connected with the push rod (170) through a shaft pin, one end of the push rod (170) is fixed with the second metal pressing plate (230) through the shaft pin, and the fixing position of the shaft pin can rotate in a limited way.

6. The special combined tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the tail end of the trapezoidal lead screw (120) is provided with a deep groove ball bearing (150).

7. The special combination tool for disassembling and assembling the tulip contact spring of the handcart type circuit breaker according to claim 1, wherein the body is formed by welding and fixing the first metal pressing plate (210) and the second metal pressing plate (230) at equal intervals through four metal connecting rods (220).