CN210984643U - Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker - Google Patents
Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker Download PDFInfo
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- CN210984643U CN210984643U CN201922255793.2U CN201922255793U CN210984643U CN 210984643 U CN210984643 U CN 210984643U CN 201922255793 U CN201922255793 U CN 201922255793U CN 210984643 U CN210984643 U CN 210984643U
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Abstract
The utility model relates to a special combination tool for dismouting of handcart-type circuit breaker plum blossom contact spring, including body and flexible subassembly, the body suit is on flexible subassembly. The body comprises a plurality of metal connecting rods, an annular metal pressing plate I and a metal pressing plate II, the annular outer side of the metal pressing plate I is welded with the annular upper surface of the metal pressing plate II through the metal connecting rods, a plurality of push rods are arranged on the annular inner side of the metal pressing plate II at equal intervals, and the top ends of the push rods are movably connected with the metal pressing plate II through shaft pins. The telescopic component is a hand wheel, a screw rod, a supporting plate and a fork driving lever, the hand wheel is fixedly connected with the screw rod with threads, a nut capable of moving vertically is sleeved on the screw rod, the outer side of the nut is fixedly connected with the annular supporting plate, the outer side of the annular supporting plate is equidistantly provided with a plurality of fork driving lever, one end of the fork driving lever is movably connected with the supporting plate through a shaft pin, and the other end of the fork driving lever is movably connected with a push rod through a. The opening and closing of the push rod can be controlled by rotating the hand wheel, and the disassembly and assembly efficiency can be effectively improved.
Description
Technical Field
The utility model belongs to the technical field of electric power appurtenance, in particular to a special combination tool 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 addition, in the process of replacing the contact spring of the handcart type circuit breaker by a power transformation maintainer, the contact spring is not matched with a mechanism of the contact spring because of the fixed structure of common tools such as tiger-mouth pliers, the time and the labor are consumed in the disassembly and assembly process, and although the replacement operation can still be carried out, the replacement efficiency cannot be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome when transformer maintainer changes handcart-type circuit breaker's contact spring, ordinary multiplexer utensil is changing the in-process easy misuse and is causing the injury to limbs to the spring, and probably damages the plum blossom contact and touches and indicate structure scheduling problem, provides a special combination tool for handcart-type circuit breaker plum blossom contact spring dismouting.
The utility model adopts the technical proposal that:
a special combined tool for disassembling and assembling a tulip contact spring of a handcart type circuit breaker comprises a body and a telescopic assembly, wherein the body is sleeved on the telescopic assembly; the body is composed of a plurality of metal connecting rods, an annular metal pressing plate I and a metal pressing plate II, the annular outer side of the metal pressing plate I is welded with the annular upper surface of the metal pressing plate II through the metal connecting rods, a plurality of push rods are arranged on the annular inner side of the metal pressing plate II at equal intervals, and the top ends of the push rods are movably connected with the metal pressing plate II through shaft pins; the telescopic component comprises a hand wheel, a screw rod, a supporting plate and a fork deflector rod, the hand wheel is fixedly connected with the screw rod with threads, a nut capable of moving vertically is sleeved on the screw rod, the outer side of the nut is fixedly connected with an annular supporting plate, a plurality of fork deflector rods are arranged on the annular outer side of the supporting plate at equal intervals, one end of each fork deflector rod is movably connected with the supporting plate through a shaft pin, and the other end of each fork deflector rod is movably connected with the push rod through; the supporting disk is displaced on the screw rod by rotating the hand wheel, and the opening and closing of the push rod are controlled.
And the tail end of the screw rod is provided with a deep groove ball bearing for limiting the nut.
The tail end of the push rod is provided with a spring guide groove for preventing the spring from sliding or falling off in the stretching process.
The number of the metal connecting rods is at least four.
The utility model has the advantages that:
the utility model discloses simple structure, the flexible operation, when transformer maintainer changed handcart-type circuit breaker's contact spring, can shorten the dismouting time greatly, the safety of the protection person and equipment simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic connection diagram of a first metal pressing plate and a second metal pressing plate.
In fig. 1-2, 110 is a hand wheel, 120 is a screw rod, 130 is a nut, 140 is a supporting plate, 150 is a deep groove ball bearing, 160 is a fork pull rod, 170 is a push rod, 210 is a metal pressure plate I, 220 is a metal connecting rod, and 230 is a metal pressure plate II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1-2, the utility model relates to a special combination tool for dismouting of handcart-type circuit breaker plum blossom contact spring, including body and flexible subassembly, the body suit is on flexible subassembly. The body is composed of a plurality of metal connecting rods 220, a first annular metal pressing plate 210 and a second annular metal pressing plate 230, the annular outer side of the first annular metal pressing plate 210 is welded with the annular upper surface of the second annular metal pressing plate 230 through the metal connecting rods 210, in order to guarantee firmness of the body, the number of the metal connecting rods 220 is at least four, a plurality of push rods 170 are arranged on the annular inner side of the second annular metal pressing plate 230 at equal intervals, and the top ends of the push rods 170 are movably connected with the second annular metal pressing plate 230 through shaft pins. The body plays a role in supporting the telescopic assembly to move. The telescopic component comprises a hand wheel 110, a screw rod 120, a supporting plate 140 and a fork deflector rod 160, the hand wheel 110 is fixedly connected with the screw rod 120 with threads, a nut 130 capable of moving vertically is sleeved on the screw rod 120, the outer side of the nut 130 is fixedly connected with the annular supporting plate 140, a plurality of fork deflector rods 160 are arranged on the annular outer side of the supporting plate 140 at equal intervals, one end of each fork deflector rod 160 is movably connected with the supporting plate 140 through a shaft pin, and the other end of each fork deflector rod 160 is movably connected with a push rod 170.
When the plum blossom contact spring of the circuit breaker is installed, firstly, the ring-shaped springs are stacked, the push rod 170 is folded and then inserted into the center of the spring, the hand wheel 110 is rotated to drive the screw rod 120 to rotate, the nut 130 sleeved on the hand wheel drives the supporting disc 140 to generate displacement on the screw rod 120, the fork deflector rod 160 on the annular outer side of the supporting disc 140 drives the push rod 170 to generate displacement, the opening action of the push rod 170 is completed, and the ring-shaped springs are opened; then the push rod 170 is inserted into the contact gap of the plum blossom contact of the circuit breaker, the hand wheel 110 is rotated in the opposite direction, when the push rod 170 is drawn in to the same circumference as the contact, the ring-shaped spring is fixed in the spring groove of the contact, and the push rod 170 is drawn out after being drawn in continuously. When the plum blossom contact spring of the circuit breaker is disassembled, the push rod 170 is folded and then inserted into a contact piece gap of the plum blossom contact of the circuit breaker, and the hand wheel 110 is rotated to complete the opening action of the push rod 170 and then is pulled out.
In order to prevent the nut 130 on the screw rod 120 from being separated from the screw rod 120, a deep groove ball bearing 150 for limiting the nut 130 may be provided at the end of the screw rod 120. In addition, in order to prevent the ring-shaped spring from sliding or falling off from the push rod 170 when the tulip contact spring of the circuit breaker is disassembled, a spring guide groove may be provided at the end of the push rod 170.
Claims (4)
1. A special combination tool for disassembling and assembling a tulip contact spring of a handcart type circuit breaker is characterized by comprising a body and a telescopic assembly, wherein the body is sleeved on the telescopic assembly; the body is composed of a plurality of metal connecting rods, an annular metal pressing plate I and a metal pressing plate II, the annular outer side of the metal pressing plate I is welded with the annular upper surface of the metal pressing plate II through the metal connecting rods, a plurality of push rods are arranged on the annular inner side of the metal pressing plate II at equal intervals, and the top ends of the push rods are movably connected with the metal pressing plate II through shaft pins; the telescopic component comprises a hand wheel, a screw rod, a supporting plate and a fork deflector rod, the hand wheel is fixedly connected with the screw rod with threads, a nut capable of moving vertically is sleeved on the screw rod, the outer side of the nut is fixedly connected with an annular supporting plate, a plurality of fork deflector rods are arranged on the annular outer side of the supporting plate at equal intervals, one end of each fork deflector rod is movably connected with the supporting plate through a shaft pin, and the other end of each fork deflector rod is movably connected with the push rod through; the supporting disk is displaced on the screw rod by rotating the hand wheel, and the opening and closing of the push rod are controlled.
2. The combination tool of claim 1, wherein: and the tail end of the screw rod is provided with a deep groove ball bearing for limiting the nut.
3. The combination tool of claim 1, wherein: the tail end of the push rod is provided with a spring guide groove for preventing the spring from sliding or falling off in the stretching process.
4. The combination tool of claim 1, wherein: the number of the metal connecting rods is at least four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922255793.2U CN210984643U (en) | 2019-12-16 | 2019-12-16 | Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922255793.2U CN210984643U (en) | 2019-12-16 | 2019-12-16 | Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210984643U true CN210984643U (en) | 2020-07-10 |
Family
ID=71421421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922255793.2U Active CN210984643U (en) | 2019-12-16 | 2019-12-16 | Special combined tool for disassembling and assembling plum blossom contact spring of handcart type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210984643U (en) |
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2019
- 2019-12-16 CN CN201922255793.2U patent/CN210984643U/en active Active
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